TY  - CONF
AU  - Kosić, Boris
AU  - Jeli, Zorana
AU  - Stakić, Aleksandra
AU  - Rusov, Marko
AU  - Bekrić, Dragoljub
AU  - Trišović, Zaga
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7680
AB  - Compliant mechanisms have several advantages and disadvantages compared to classical mechanisms, primarily because those mechanisms are essentially one part that doesn't require any lubrication and there is also no backslash between movable parts. But due to the mechanism design principles, the strength of the overall structure and movement range can be significantly limited.
PB  - Serbian Society for Geometry and Graphics (SUGIG)
C3  - The 9th International Scientific Conference on Geometry and Graphics MoNGeometrija 2023 June 7-10 Novi Sad, Serbia
T1  - ANALISYS OF A FOUR-BAR LINKAGE COMPLAINT MECHANISM FOR RECEIVING APPROXIMATELY STRAIGHT-LINE MOTION
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7680
ER  - 

@conference{
author = "Kosić, Boris and Jeli, Zorana and Stakić, Aleksandra and Rusov, Marko and Bekrić, Dragoljub and Trišović, Zaga",
year = "2023",
abstract = "Compliant mechanisms have several advantages and disadvantages compared to classical mechanisms, primarily because those mechanisms are essentially one part that doesn't require any lubrication and there is also no backslash between movable parts. But due to the mechanism design principles, the strength of the overall structure and movement range can be significantly limited.",
publisher = "Serbian Society for Geometry and Graphics (SUGIG)",
journal = "The 9th International Scientific Conference on Geometry and Graphics MoNGeometrija 2023 June 7-10 Novi Sad, Serbia",
title = "ANALISYS OF A FOUR-BAR LINKAGE COMPLAINT MECHANISM FOR RECEIVING APPROXIMATELY STRAIGHT-LINE MOTION",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7680"
}

Kosić, B., Jeli, Z., Stakić, A., Rusov, M., Bekrić, D.,& Trišović, Z.. (2023). ANALISYS OF A FOUR-BAR LINKAGE COMPLAINT MECHANISM FOR RECEIVING APPROXIMATELY STRAIGHT-LINE MOTION. in The 9th International Scientific Conference on Geometry and Graphics MoNGeometrija 2023 June 7-10 Novi Sad, Serbia
Serbian Society for Geometry and Graphics (SUGIG)..
https://hdl.handle.net/21.15107/rcub_machinery_7680

Kosić B, Jeli Z, Stakić A, Rusov M, Bekrić D, Trišović Z. ANALISYS OF A FOUR-BAR LINKAGE COMPLAINT MECHANISM FOR RECEIVING APPROXIMATELY STRAIGHT-LINE MOTION. in The 9th International Scientific Conference on Geometry and Graphics MoNGeometrija 2023 June 7-10 Novi Sad, Serbia. 2023;.
https://hdl.handle.net/21.15107/rcub_machinery_7680 .

Kosić, Boris, Jeli, Zorana, Stakić, Aleksandra, Rusov, Marko, Bekrić, Dragoljub, Trišović, Zaga, "ANALISYS OF A FOUR-BAR LINKAGE COMPLAINT MECHANISM FOR RECEIVING APPROXIMATELY STRAIGHT-LINE MOTION" in The 9th International Scientific Conference on Geometry and Graphics MoNGeometrija 2023 June 7-10 Novi Sad, Serbia (2023),
https://hdl.handle.net/21.15107/rcub_machinery_7680 .

TY  - CONF
AU  - Stojićević, Miša
AU  - Popkonstantinović, Branislav
AU  - Jeli, Zorana
AU  - Cvetković, Ivana
AU  - Kosić, Boris
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7679
AB  - A parabolic trough collector (PTC) is one of the most common concentrated solar power systems 
(CPS). Usually, this system is seen with a fixed focal point and parabolic mirrors rotate around this 
point. These mirrors are concentrating sun’s rays into the focal point and thus heating it. The rotation 
of mirrors is set to follow the movement of the Sun. The idea of this paper is to analyse a PTC system 
when parabolic-shaped mirrors are fixed and the focal point is moving to absorb as much sun’s rays 
as possible. When a parabola is placed to reflect rays into the point, these rays are perpendicular to 
the directrix of that parabola. Once this ray starts to change its angle, so does the focal point change 
in two ways. The first one is a dimension of a focal point- not a point but a cluster of points that can be 
assembled on a surface shaped like a cylinder, for example. A second change that occurs is that 
location of the focal point shifts to a different position. This paper shows what happens to the focal 
point of parabolic-shaped mirrors when they are fixed on the ground and entering rays follow the path 
of Sun rays. This analysis will take into consideration one location (for its latitude and longitude) and 
for that location azimuth and altitude will be calculated and implemented on this PTC system.
PB  - Serbian Society for Geometry and  Graphics (SUGIG)
C3  - The 9th International Scientific Conference on Geometry and Graphics MoNGeometrija 2023 June 7-10 Novi Sad, Serbia
T1  - ANALYSIS OF A PTC SYSTEMS WITH MOVING FOCAL POINT
SP  - 371
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7679
ER  - 

@conference{
author = "Stojićević, Miša and Popkonstantinović, Branislav and Jeli, Zorana and Cvetković, Ivana and Kosić, Boris",
year = "2023",
abstract = "A parabolic trough collector (PTC) is one of the most common concentrated solar power systems 
(CPS). Usually, this system is seen with a fixed focal point and parabolic mirrors rotate around this 
point. These mirrors are concentrating sun’s rays into the focal point and thus heating it. The rotation 
of mirrors is set to follow the movement of the Sun. The idea of this paper is to analyse a PTC system 
when parabolic-shaped mirrors are fixed and the focal point is moving to absorb as much sun’s rays 
as possible. When a parabola is placed to reflect rays into the point, these rays are perpendicular to 
the directrix of that parabola. Once this ray starts to change its angle, so does the focal point change 
in two ways. The first one is a dimension of a focal point- not a point but a cluster of points that can be 
assembled on a surface shaped like a cylinder, for example. A second change that occurs is that 
location of the focal point shifts to a different position. This paper shows what happens to the focal 
point of parabolic-shaped mirrors when they are fixed on the ground and entering rays follow the path 
of Sun rays. This analysis will take into consideration one location (for its latitude and longitude) and 
for that location azimuth and altitude will be calculated and implemented on this PTC system.",
publisher = "Serbian Society for Geometry and  Graphics (SUGIG)",
journal = "The 9th International Scientific Conference on Geometry and Graphics MoNGeometrija 2023 June 7-10 Novi Sad, Serbia",
title = "ANALYSIS OF A PTC SYSTEMS WITH MOVING FOCAL POINT",
pages = "371",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7679"
}

Stojićević, M., Popkonstantinović, B., Jeli, Z., Cvetković, I.,& Kosić, B.. (2023). ANALYSIS OF A PTC SYSTEMS WITH MOVING FOCAL POINT. in The 9th International Scientific Conference on Geometry and Graphics MoNGeometrija 2023 June 7-10 Novi Sad, Serbia
Serbian Society for Geometry and  Graphics (SUGIG)., 371.
https://hdl.handle.net/21.15107/rcub_machinery_7679

Stojićević M, Popkonstantinović B, Jeli Z, Cvetković I, Kosić B. ANALYSIS OF A PTC SYSTEMS WITH MOVING FOCAL POINT. in The 9th International Scientific Conference on Geometry and Graphics MoNGeometrija 2023 June 7-10 Novi Sad, Serbia. 2023;:371.
https://hdl.handle.net/21.15107/rcub_machinery_7679 .

Stojićević, Miša, Popkonstantinović, Branislav, Jeli, Zorana, Cvetković, Ivana, Kosić, Boris, "ANALYSIS OF A PTC SYSTEMS WITH MOVING FOCAL POINT" in The 9th International Scientific Conference on Geometry and Graphics MoNGeometrija 2023 June 7-10 Novi Sad, Serbia (2023):371,
https://hdl.handle.net/21.15107/rcub_machinery_7679 .

TY  - CONF
AU  - Kosić, Boris
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5824
AB  - The human knee can be considered a simple hinge joint but a more detailed analysis will
show that real knee joints have significantly complex kinematics. The complex movement of knee
joints is determined by unique shape of bones, especially the surfaces shape of the femur end and
the beginning of the tibia. Analysis has shown that the knee is in fact, rolling“ joint where the tibia rolls on the femur end, and that motion is supported by Ligaments. Ligament arrangement around bones and shapes of contact surfaces defines movement, which can be represented by a four-bar
mechanism. Modern above-knee prostheses consist of a four-bar mechanism created by suitable
metal bars (linkages) connected with hinges, which will require some maintenance and lubrication,
which can be solved using compliant mechanisms. Compliant mechanisms can offer several
advantages over classical mechanisms, such are, no requirements for lubrication and maintenance of hinges can provide preload necessary for proper prosthesis stability, etc... These are good advantages but a synthesis of compliant mechanisms can be quite challenging, especially in a case where new geometry and topology must be designed to achieve required movement. An interesting case is simply the conversion of a classical mechanism into a compliant one, where hinges will be replaced with deformable (compliant) hinges. With this approach, the simplicity of the classical planar mechanism can be retained with the advantages of compliant mechanisms.
PB  - Xidian University
PB  - University of Belgrade
PB  - University of Maribor
C3  - International Symposium on Stochastic Dynamics and Statistical Application (SDSA 2022), 13-15, May, 2022
T1  - Mechanism for human knee joint prosthesis
EP  - 9
SP  - 9
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5824
ER  - 

@conference{
author = "Kosić, Boris",
year = "2022",
abstract = "The human knee can be considered a simple hinge joint but a more detailed analysis will
show that real knee joints have significantly complex kinematics. The complex movement of knee
joints is determined by unique shape of bones, especially the surfaces shape of the femur end and
the beginning of the tibia. Analysis has shown that the knee is in fact, rolling“ joint where the tibia rolls on the femur end, and that motion is supported by Ligaments. Ligament arrangement around bones and shapes of contact surfaces defines movement, which can be represented by a four-bar
mechanism. Modern above-knee prostheses consist of a four-bar mechanism created by suitable
metal bars (linkages) connected with hinges, which will require some maintenance and lubrication,
which can be solved using compliant mechanisms. Compliant mechanisms can offer several
advantages over classical mechanisms, such are, no requirements for lubrication and maintenance of hinges can provide preload necessary for proper prosthesis stability, etc... These are good advantages but a synthesis of compliant mechanisms can be quite challenging, especially in a case where new geometry and topology must be designed to achieve required movement. An interesting case is simply the conversion of a classical mechanism into a compliant one, where hinges will be replaced with deformable (compliant) hinges. With this approach, the simplicity of the classical planar mechanism can be retained with the advantages of compliant mechanisms.",
publisher = "Xidian University, University of Belgrade, University of Maribor",
journal = "International Symposium on Stochastic Dynamics and Statistical Application (SDSA 2022), 13-15, May, 2022",
title = "Mechanism for human knee joint prosthesis",
pages = "9-9",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5824"
}

Kosić, B.. (2022). Mechanism for human knee joint prosthesis. in International Symposium on Stochastic Dynamics and Statistical Application (SDSA 2022), 13-15, May, 2022
Xidian University., 9-9.
https://hdl.handle.net/21.15107/rcub_machinery_5824

Kosić B. Mechanism for human knee joint prosthesis. in International Symposium on Stochastic Dynamics and Statistical Application (SDSA 2022), 13-15, May, 2022. 2022;:9-9.
https://hdl.handle.net/21.15107/rcub_machinery_5824 .

Kosić, Boris, "Mechanism for human knee joint prosthesis" in International Symposium on Stochastic Dynamics and Statistical Application (SDSA 2022), 13-15, May, 2022 (2022):9-9,
https://hdl.handle.net/21.15107/rcub_machinery_5824 .

TY  - CONF
AU  - Stojićević, Miša
AU  - Popkonstantinović, Branislav
AU  - Jeli, Zorana
AU  - Cvetković, Ivana
AU  - Kosić, Boris
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5544
AB  - Out of many geometric curves, parabola stands out in usage in concentrated solar power (CSP). Its reflective properties allow reflecting light into one single point. This paper gives insight into the geometry of parabolic trough concentrators from the point of designing a size of a collector regarding two inputs. The first input is a parameter of the parabola which, provides the shape and size of the reflecting surface. A second input is a deviation of the angle of incoming light. Usually, this angle is perpendicular to the parabola's directrix, but the sizing of the collector tube must consider that because manufacturing or any other inaccuracy reflected ray might disperse from the focal point of the parabola. A detailed view of this dissipation of reflected rays depending on the entering ray's angle will be explained in the paper. A geometrical and algebraic display will be given, and a formula for sizing collector will be derived. In this equation two input values will be combined: parameter of parabola and value of the deviation of entering ray of light. This gained formula can later be used to show dependence between these two inputs and provide the answer to a question: is there a way to construct a mechanism that will move the focal point in accordance to changing entering angle and parameter of a parabola?
PB  - SUGIG
C3  - 8th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art
T1  - Dimensioning A PTC Systems Using Parabola Properties
EP  - 70
SP  - 62
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5544
ER  - 

@conference{
author = "Stojićević, Miša and Popkonstantinović, Branislav and Jeli, Zorana and Cvetković, Ivana and Kosić, Boris",
year = "2021",
abstract = "Out of many geometric curves, parabola stands out in usage in concentrated solar power (CSP). Its reflective properties allow reflecting light into one single point. This paper gives insight into the geometry of parabolic trough concentrators from the point of designing a size of a collector regarding two inputs. The first input is a parameter of the parabola which, provides the shape and size of the reflecting surface. A second input is a deviation of the angle of incoming light. Usually, this angle is perpendicular to the parabola's directrix, but the sizing of the collector tube must consider that because manufacturing or any other inaccuracy reflected ray might disperse from the focal point of the parabola. A detailed view of this dissipation of reflected rays depending on the entering ray's angle will be explained in the paper. A geometrical and algebraic display will be given, and a formula for sizing collector will be derived. In this equation two input values will be combined: parameter of parabola and value of the deviation of entering ray of light. This gained formula can later be used to show dependence between these two inputs and provide the answer to a question: is there a way to construct a mechanism that will move the focal point in accordance to changing entering angle and parameter of a parabola?",
publisher = "SUGIG",
journal = "8th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art",
title = "Dimensioning A PTC Systems Using Parabola Properties",
pages = "70-62",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5544"
}

Stojićević, M., Popkonstantinović, B., Jeli, Z., Cvetković, I.,& Kosić, B.. (2021). Dimensioning A PTC Systems Using Parabola Properties. in 8th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art
SUGIG., 62-70.
https://hdl.handle.net/21.15107/rcub_machinery_5544

Stojićević M, Popkonstantinović B, Jeli Z, Cvetković I, Kosić B. Dimensioning A PTC Systems Using Parabola Properties. in 8th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art. 2021;:62-70.
https://hdl.handle.net/21.15107/rcub_machinery_5544 .

Stojićević, Miša, Popkonstantinović, Branislav, Jeli, Zorana, Cvetković, Ivana, Kosić, Boris, "Dimensioning A PTC Systems Using Parabola Properties" in 8th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art (2021):62-70,
https://hdl.handle.net/21.15107/rcub_machinery_5544 .

TY  - CONF
AU  - Milićević, Rodoljub
AU  - Miljković, Danilo
AU  - Gajić, Branislav
AU  - Kosić, Boris
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5543
AB  - In this paper, we will be discussing various shapes of drain pipes for tray columns for distillation (rectification). Drain pipes are used for distribution of liquid from upper trays to next trays and it is important to respect some guidelines about geometry. Three different solutions have been presented and the conclusion about the results have been made. By adopting the optimal solution for drain pipes, engineers manage to obtain constant flow through tray columns as well as safe and reliable operation, as a result. Different standpoints have been mentioned, from various authors having worked in engineering for many years.
PB  - SUGIG
C3  - 8th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art
T1  - Examination of Different Cross Section of Drain Pipes In Distilation Column
EP  - 102
SP  - 97
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5543
ER  - 

@conference{
author = "Milićević, Rodoljub and Miljković, Danilo and Gajić, Branislav and Kosić, Boris",
year = "2021",
abstract = "In this paper, we will be discussing various shapes of drain pipes for tray columns for distillation (rectification). Drain pipes are used for distribution of liquid from upper trays to next trays and it is important to respect some guidelines about geometry. Three different solutions have been presented and the conclusion about the results have been made. By adopting the optimal solution for drain pipes, engineers manage to obtain constant flow through tray columns as well as safe and reliable operation, as a result. Different standpoints have been mentioned, from various authors having worked in engineering for many years.",
publisher = "SUGIG",
journal = "8th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art",
title = "Examination of Different Cross Section of Drain Pipes In Distilation Column",
pages = "102-97",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5543"
}

Milićević, R., Miljković, D., Gajić, B.,& Kosić, B.. (2021). Examination of Different Cross Section of Drain Pipes In Distilation Column. in 8th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art
SUGIG., 97-102.
https://hdl.handle.net/21.15107/rcub_machinery_5543

Milićević R, Miljković D, Gajić B, Kosić B. Examination of Different Cross Section of Drain Pipes In Distilation Column. in 8th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art. 2021;:97-102.
https://hdl.handle.net/21.15107/rcub_machinery_5543 .

Milićević, Rodoljub, Miljković, Danilo, Gajić, Branislav, Kosić, Boris, "Examination of Different Cross Section of Drain Pipes In Distilation Column" in 8th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art (2021):97-102,
https://hdl.handle.net/21.15107/rcub_machinery_5543 .

TY  - CONF
AU  - Stakić, Aleksandra
AU  - Kosić, Boris
AU  - Jeli, Zorana
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5531
AB  - The paper presents a synthesis of mechanisms needed to realize an approximate rectilinear motion. The synthesis was performed at several different levels, by changing different geometric parameters of the mechanism itself. The software package SolidWorks2020 was used for the analysis and synthesis of mechanisms. The main goal of using this method was to provide us a possible solution to turn the classic type of mechanism into the compliant mechanism. Four different mechanisms were used for specific examples, but the idea was to form a methodology for converting classical mechanisms into compliant mechanisms.
PB  - SUGIG
C3  - 8th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art
T1  - Synthesis of Mechanisms for Linear Motion Using Modern Methods
SP  - 45
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5531
ER  - 

@conference{
author = "Stakić, Aleksandra and Kosić, Boris and Jeli, Zorana",
year = "2021",
abstract = "The paper presents a synthesis of mechanisms needed to realize an approximate rectilinear motion. The synthesis was performed at several different levels, by changing different geometric parameters of the mechanism itself. The software package SolidWorks2020 was used for the analysis and synthesis of mechanisms. The main goal of using this method was to provide us a possible solution to turn the classic type of mechanism into the compliant mechanism. Four different mechanisms were used for specific examples, but the idea was to form a methodology for converting classical mechanisms into compliant mechanisms.",
publisher = "SUGIG",
journal = "8th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art",
title = "Synthesis of Mechanisms for Linear Motion Using Modern Methods",
pages = "45",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5531"
}

Stakić, A., Kosić, B.,& Jeli, Z.. (2021). Synthesis of Mechanisms for Linear Motion Using Modern Methods. in 8th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art
SUGIG., 45.
https://hdl.handle.net/21.15107/rcub_machinery_5531

Stakić A, Kosić B, Jeli Z. Synthesis of Mechanisms for Linear Motion Using Modern Methods. in 8th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art. 2021;:45.
https://hdl.handle.net/21.15107/rcub_machinery_5531 .

Stakić, Aleksandra, Kosić, Boris, Jeli, Zorana, "Synthesis of Mechanisms for Linear Motion Using Modern Methods" in 8th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art (2021):45,
https://hdl.handle.net/21.15107/rcub_machinery_5531 .

TY  - CONF
AU  - Stojićević, Miša
AU  - Popkonstantinovic, Branislav
AU  - Jeli, Zorana
AU  - Cvetković, Ivana
AU  - Kosić, Boris
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5605
AB  - An intense increase of research in “green” technologies brings a variety of science fields in common goal to contribute sustainable development. Such an example is concentrated solar power (CSP) which combines knowledge of astronomy, thermodynamics, mechatronics and geometry in one final product. The solar power tower is a system that uses an array of flat, movable mirrors called heliostats to focus Sun’s rays into one focal point which is usually a boiler located on top of central collector tower. This paper will present one possible design of solar power tower by using geometry to relocate its focal point. Most common solutions for solar power tower are shown and they are based on concept where boiler is in plain sight. Idea behind this relocation of focal point in novel construction is that boiler will be isolated from environment conditions and by doing so it can preserve more thermal energy during night. This can be achieved by installing additional mirror on solar power tower which has a shape as revolved partial ellipse. Here will be explained how this additional mirror can be used as economiser for fluid that is being heated in solar power. Paper also explains use of “fat point” at focal point and thus compensate errors that can occur if rays from heliostat are inaccurate.
PB  - SUGIG
C3  - 7th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art
T1  - Geometry Of Solar Tower With Elliptical Torus Mirror
EP  - 162
SP  - 155
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5605
ER  - 

@conference{
author = "Stojićević, Miša and Popkonstantinovic, Branislav and Jeli, Zorana and Cvetković, Ivana and Kosić, Boris",
year = "2020",
abstract = "An intense increase of research in “green” technologies brings a variety of science fields in common goal to contribute sustainable development. Such an example is concentrated solar power (CSP) which combines knowledge of astronomy, thermodynamics, mechatronics and geometry in one final product. The solar power tower is a system that uses an array of flat, movable mirrors called heliostats to focus Sun’s rays into one focal point which is usually a boiler located on top of central collector tower. This paper will present one possible design of solar power tower by using geometry to relocate its focal point. Most common solutions for solar power tower are shown and they are based on concept where boiler is in plain sight. Idea behind this relocation of focal point in novel construction is that boiler will be isolated from environment conditions and by doing so it can preserve more thermal energy during night. This can be achieved by installing additional mirror on solar power tower which has a shape as revolved partial ellipse. Here will be explained how this additional mirror can be used as economiser for fluid that is being heated in solar power. Paper also explains use of “fat point” at focal point and thus compensate errors that can occur if rays from heliostat are inaccurate.",
publisher = "SUGIG",
journal = "7th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art",
title = "Geometry Of Solar Tower With Elliptical Torus Mirror",
pages = "162-155",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5605"
}

Stojićević, M., Popkonstantinovic, B., Jeli, Z., Cvetković, I.,& Kosić, B.. (2020). Geometry Of Solar Tower With Elliptical Torus Mirror. in 7th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art
SUGIG., 155-162.
https://hdl.handle.net/21.15107/rcub_machinery_5605

Stojićević M, Popkonstantinovic B, Jeli Z, Cvetković I, Kosić B. Geometry Of Solar Tower With Elliptical Torus Mirror. in 7th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art. 2020;:155-162.
https://hdl.handle.net/21.15107/rcub_machinery_5605 .

Stojićević, Miša, Popkonstantinovic, Branislav, Jeli, Zorana, Cvetković, Ivana, Kosić, Boris, "Geometry Of Solar Tower With Elliptical Torus Mirror" in 7th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art (2020):155-162,
https://hdl.handle.net/21.15107/rcub_machinery_5605 .

TY  - CONF
AU  - Kosić, Boris
AU  - Jeli, Zorana
AU  - Dragičević, Aleksandra
AU  - Stojićević, Miša
AU  - Matija, Lidija
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5602
AB  - At first glance, the human knee can look like a simple rotational joint but the real knee has more complex geometry and kinematics. Kinematics of the human knee depends on its geometry and applied analysis showed that it is a rolling joint, where the upper part of tibia rolling on femur lower end. Such kind of motion can be simply explained with rolling curves generation. In the simplest case, circle rotates on a flat surface and each point on circle circumference will generate one cycloid. Curves defined through this method highly depend on the shape of the rolling object and shape of the surface where the object roles. 
In the literature complex, geometry and movement of the human knee can be solved with a relatively complex mechanism that can reproduce real movement or simply by replacing knee with one rotational joint. Application of the new popular technologies (3D printing, CAD) and new approaches of mechanisms design (where the mechanism is produced as one part, and its geometrical shape allows relative movement through elastics deformation), can simplify the overall geometry and kinematic of an artificial knee joint. This will further simplify manufacturing processes, lower costs of the knee and leg prosthetics, and increase its durability by reducing the number of movable parts.
PB  - SUGIG
C3  - 7th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art
T1  - Geometry And Kinematics Of Human Knee Joint
EP  - 242
SP  - 235
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5602
ER  - 

@conference{
author = "Kosić, Boris and Jeli, Zorana and Dragičević, Aleksandra and Stojićević, Miša and Matija, Lidija",
year = "2020",
abstract = "At first glance, the human knee can look like a simple rotational joint but the real knee has more complex geometry and kinematics. Kinematics of the human knee depends on its geometry and applied analysis showed that it is a rolling joint, where the upper part of tibia rolling on femur lower end. Such kind of motion can be simply explained with rolling curves generation. In the simplest case, circle rotates on a flat surface and each point on circle circumference will generate one cycloid. Curves defined through this method highly depend on the shape of the rolling object and shape of the surface where the object roles. 
In the literature complex, geometry and movement of the human knee can be solved with a relatively complex mechanism that can reproduce real movement or simply by replacing knee with one rotational joint. Application of the new popular technologies (3D printing, CAD) and new approaches of mechanisms design (where the mechanism is produced as one part, and its geometrical shape allows relative movement through elastics deformation), can simplify the overall geometry and kinematic of an artificial knee joint. This will further simplify manufacturing processes, lower costs of the knee and leg prosthetics, and increase its durability by reducing the number of movable parts.",
publisher = "SUGIG",
journal = "7th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art",
title = "Geometry And Kinematics Of Human Knee Joint",
pages = "242-235",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5602"
}

Kosić, B., Jeli, Z., Dragičević, A., Stojićević, M.,& Matija, L.. (2020). Geometry And Kinematics Of Human Knee Joint. in 7th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art
SUGIG., 235-242.
https://hdl.handle.net/21.15107/rcub_machinery_5602

Kosić B, Jeli Z, Dragičević A, Stojićević M, Matija L. Geometry And Kinematics Of Human Knee Joint. in 7th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art. 2020;:235-242.
https://hdl.handle.net/21.15107/rcub_machinery_5602 .

Kosić, Boris, Jeli, Zorana, Dragičević, Aleksandra, Stojićević, Miša, Matija, Lidija, "Geometry And Kinematics Of Human Knee Joint" in 7th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art (2020):235-242,
https://hdl.handle.net/21.15107/rcub_machinery_5602 .

TY  - CONF
AU  - Rusov, Marko
AU  - Kosić, Boris
AU  - Berdić, Dušan
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5611
AB  - This paper describes and explains MacLaurin’s transformations and their use in a 3D synthesis of
mechanisms. An overview of the high order curves is provided, along with their degradation to the curves
of the lower order. MacLaurin’s transcriptions are used to degrade the curves of the higher order to the
desired curves of the lower order. This will allow us to generate different kinds of trajectories and,
therefore, different kind of mechanisms. Furthermore, the implementation of the obtained curves into the
CAD pragmas and 3D environment is presented. This allows a quick synthesis of a mechanism, its
adaptation and simulation in order to get the desired final trajectories. Different kinds of trajectories
implemented in a 3D environment are shown in this paper. Fully operational 3D models of mechanism
trajectories and simulation are created and documented in the SolidWorks application.
This research could be used further in the theory of mechanisms, 3D modelling, simulations and the
synthesis of mechanisms. The exposed methods of the synthesis of mechanisms may be used in the design
and construction of new mechanisms or the redesign of the existing mechanisms.
C3  - The 7th International Scientific Conference on Geometry and Graphics moNGeomatrija2020
T1  - Use of Maclaurin Geometric Transformations in 3D Synthesis of Mechanisms
EP  - 589
SP  - 579
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5611
ER  - 

@conference{
author = "Rusov, Marko and Kosić, Boris and Berdić, Dušan",
year = "2020",
abstract = "This paper describes and explains MacLaurin’s transformations and their use in a 3D synthesis of
mechanisms. An overview of the high order curves is provided, along with their degradation to the curves
of the lower order. MacLaurin’s transcriptions are used to degrade the curves of the higher order to the
desired curves of the lower order. This will allow us to generate different kinds of trajectories and,
therefore, different kind of mechanisms. Furthermore, the implementation of the obtained curves into the
CAD pragmas and 3D environment is presented. This allows a quick synthesis of a mechanism, its
adaptation and simulation in order to get the desired final trajectories. Different kinds of trajectories
implemented in a 3D environment are shown in this paper. Fully operational 3D models of mechanism
trajectories and simulation are created and documented in the SolidWorks application.
This research could be used further in the theory of mechanisms, 3D modelling, simulations and the
synthesis of mechanisms. The exposed methods of the synthesis of mechanisms may be used in the design
and construction of new mechanisms or the redesign of the existing mechanisms.",
journal = "The 7th International Scientific Conference on Geometry and Graphics moNGeomatrija2020",
title = "Use of Maclaurin Geometric Transformations in 3D Synthesis of Mechanisms",
pages = "589-579",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5611"
}

Rusov, M., Kosić, B.,& Berdić, D.. (2020). Use of Maclaurin Geometric Transformations in 3D Synthesis of Mechanisms. in The 7th International Scientific Conference on Geometry and Graphics moNGeomatrija2020, 579-589.
https://hdl.handle.net/21.15107/rcub_machinery_5611

Rusov M, Kosić B, Berdić D. Use of Maclaurin Geometric Transformations in 3D Synthesis of Mechanisms. in The 7th International Scientific Conference on Geometry and Graphics moNGeomatrija2020. 2020;:579-589.
https://hdl.handle.net/21.15107/rcub_machinery_5611 .

Rusov, Marko, Kosić, Boris, Berdić, Dušan, "Use of Maclaurin Geometric Transformations in 3D Synthesis of Mechanisms" in The 7th International Scientific Conference on Geometry and Graphics moNGeomatrija2020 (2020):579-589,
https://hdl.handle.net/21.15107/rcub_machinery_5611 .

TY  - CONF
AU  - Kosić, Boris
AU  - Dragičević, Aleksandra
AU  - Jeli, Zorana
AU  - Marinescu, Gabriel-Catalin
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3316
AB  - In the last couple of years, 3D printing has become one of the most popular manufacturing techniques in designing of the new prototype parts, mechanisms and machines. Available and relatively cheap 3D printing techniques allows fast manufacturing of different complicate prototypes (rapid prototyping) by using plastics as base material, like FDM. In the most cases, these prototypes are used only for functionality testing and design analyzing, yet that is a small part of the possibilities that 3D printing can give in parts design. For example, 3D printing can be utilized for creation of the cheap personalized limb prosthesis, toward specific needs of each patient. One of the biggest advantages of the method is production of the complex geometric shapes, done layer by layer, which provides a new level of freedom in part design and significantly impact their final characteristics, since conventional techniques of parts manufacturing have many limitations. By modifying the inner geometric structure of the parts produced from regular material, new properties of the engineered part are obtained, with different behavior, which the starting material didn't have. This, engineered materials are named metamaterials. Using the metamaterials it is possible to produce parts with properties that doesn't appear in nature. This paper will present how new parts, mechanisms, and machines can be designed and manufactured using metamaterials and 3D printing.
PB  - Springer International Publishing Ag, Cham
C3  - Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019
T1  - Application of 3D Printing in the Metamaterials Designing
EP  - 183
SP  - 166
VL  - 90
DO  - 10.1007/978-3-030-30853-7_10
ER  - 

@conference{
author = "Kosić, Boris and Dragičević, Aleksandra and Jeli, Zorana and Marinescu, Gabriel-Catalin",
year = "2020",
abstract = "In the last couple of years, 3D printing has become one of the most popular manufacturing techniques in designing of the new prototype parts, mechanisms and machines. Available and relatively cheap 3D printing techniques allows fast manufacturing of different complicate prototypes (rapid prototyping) by using plastics as base material, like FDM. In the most cases, these prototypes are used only for functionality testing and design analyzing, yet that is a small part of the possibilities that 3D printing can give in parts design. For example, 3D printing can be utilized for creation of the cheap personalized limb prosthesis, toward specific needs of each patient. One of the biggest advantages of the method is production of the complex geometric shapes, done layer by layer, which provides a new level of freedom in part design and significantly impact their final characteristics, since conventional techniques of parts manufacturing have many limitations. By modifying the inner geometric structure of the parts produced from regular material, new properties of the engineered part are obtained, with different behavior, which the starting material didn't have. This, engineered materials are named metamaterials. Using the metamaterials it is possible to produce parts with properties that doesn't appear in nature. This paper will present how new parts, mechanisms, and machines can be designed and manufactured using metamaterials and 3D printing.",
publisher = "Springer International Publishing Ag, Cham",
journal = "Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019",
title = "Application of 3D Printing in the Metamaterials Designing",
pages = "183-166",
volume = "90",
doi = "10.1007/978-3-030-30853-7_10"
}

Kosić, B., Dragičević, A., Jeli, Z.,& Marinescu, G.. (2020). Application of 3D Printing in the Metamaterials Designing. in Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019
Springer International Publishing Ag, Cham., 90, 166-183.
https://doi.org/10.1007/978-3-030-30853-7_10

Kosić B, Dragičević A, Jeli Z, Marinescu G. Application of 3D Printing in the Metamaterials Designing. in Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019. 2020;90:166-183.
doi:10.1007/978-3-030-30853-7_10 .

Kosić, Boris, Dragičević, Aleksandra, Jeli, Zorana, Marinescu, Gabriel-Catalin, "Application of 3D Printing in the Metamaterials Designing" in Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019, 90 (2020):166-183,
https://doi.org/10.1007/978-3-030-30853-7_10 . .

TY  - CONF
AU  - Jovanović, Đorđe
AU  - Mitrović, Nenad
AU  - Marković, Zlatko
AU  - Vilotić, Dragisa
AU  - Kosić, Boris
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3310
AB  - For the past several decades, a codified design of steel connections in civil-engineering has been based on the component approach. For a very common end-plate connection, a tension component, named T-stub, usually dictates the connections' behavior. This T-stub element is greatly investigated in the configuration with two bolts in a row, but the configuration with four bolts in a row is usually neglected, both in the studies and codes. This paper presents an experimental investigation of T-stub elements and important aspects of their numerical modeling. Special attention is dedicated to the material testing and modeling, since all of the tests were performed until bolt fracture. Uniaxial tests of steel specimens were performed using extensometers, strain gauges, and Aramis system, while the bolt material is additionally tested by microscopic examination and hardness testing. In order to obtain satisfactory calibration of numerical models developed in Abaqus, knowing material parameters including damage initiation and propagation is crucial. Several iterative numericalexperimental procedures for obtaining the true stress-strain curves are outlined and compared, along with the well-known Bridgman method. The advantages of using Aramis system in calibrating numerical model, for both material and assembly are demonstrated. In the end, comparisons of numerical and experimental behavior curves are presented and satisfactory results are obtained.
PB  - Springer International Publishing Ag, Cham
C3  - Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019
T1  - Experimental and Numerical Investigation of the T-Stub Elements with Four Bolts in a Row Until Bolt Fracture
EP  - 322
SP  - 305
VL  - 90
DO  - 10.1007/978-3-030-30853-7_18
ER  - 

@conference{
author = "Jovanović, Đorđe and Mitrović, Nenad and Marković, Zlatko and Vilotić, Dragisa and Kosić, Boris",
year = "2020",
abstract = "For the past several decades, a codified design of steel connections in civil-engineering has been based on the component approach. For a very common end-plate connection, a tension component, named T-stub, usually dictates the connections' behavior. This T-stub element is greatly investigated in the configuration with two bolts in a row, but the configuration with four bolts in a row is usually neglected, both in the studies and codes. This paper presents an experimental investigation of T-stub elements and important aspects of their numerical modeling. Special attention is dedicated to the material testing and modeling, since all of the tests were performed until bolt fracture. Uniaxial tests of steel specimens were performed using extensometers, strain gauges, and Aramis system, while the bolt material is additionally tested by microscopic examination and hardness testing. In order to obtain satisfactory calibration of numerical models developed in Abaqus, knowing material parameters including damage initiation and propagation is crucial. Several iterative numericalexperimental procedures for obtaining the true stress-strain curves are outlined and compared, along with the well-known Bridgman method. The advantages of using Aramis system in calibrating numerical model, for both material and assembly are demonstrated. In the end, comparisons of numerical and experimental behavior curves are presented and satisfactory results are obtained.",
publisher = "Springer International Publishing Ag, Cham",
journal = "Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019",
title = "Experimental and Numerical Investigation of the T-Stub Elements with Four Bolts in a Row Until Bolt Fracture",
pages = "322-305",
volume = "90",
doi = "10.1007/978-3-030-30853-7_18"
}

Jovanović, Đ., Mitrović, N., Marković, Z., Vilotić, D.,& Kosić, B.. (2020). Experimental and Numerical Investigation of the T-Stub Elements with Four Bolts in a Row Until Bolt Fracture. in Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019
Springer International Publishing Ag, Cham., 90, 305-322.
https://doi.org/10.1007/978-3-030-30853-7_18

Jovanović Đ, Mitrović N, Marković Z, Vilotić D, Kosić B. Experimental and Numerical Investigation of the T-Stub Elements with Four Bolts in a Row Until Bolt Fracture. in Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019. 2020;90:305-322.
doi:10.1007/978-3-030-30853-7_18 .

Jovanović, Đorđe, Mitrović, Nenad, Marković, Zlatko, Vilotić, Dragisa, Kosić, Boris, "Experimental and Numerical Investigation of the T-Stub Elements with Four Bolts in a Row Until Bolt Fracture" in Computational and Experimental Approaches in Materials Science and Engineering, Cnntech 2019, 90 (2020):305-322,
https://doi.org/10.1007/978-3-030-30853-7_18 . .

TY  - CONF
AU  - Matija, Lidija
AU  - Kosić, Boris
AU  - Jeftić, Branislava
AU  - Stanković, Ivana
AU  - Koruga, Đuro
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5613
AB  - In this paper geometry and design in material science and engineering, which have been an
inspiration from nature and biology is investigated. It is found out that symmetry, harmony, and
perfection play crucial rule in this mimicry. In the symmetry approach not only symmetry of the
crystallography group is included, but also molecular symmetry groups, Kugel and Curie symmetry
groups. The criteria of harmony are based on Fibonacci sequences and Fibonacci numbers Φ,-Φ,φ,-
φ. Symmetry and harmony are giving beauty to geometry and design in nature, biology, and
engineering. However, in this investigation, perfection is also included (based on the perfect
numbers) that gives, besides beauty, a new property of “sublime” to the objects and processes.
In this paper, a few examples of mimicry in relation to nature-biology-engineering based
on symmetry, harmony, and perfection are presented. One of the examples of that kind of mimicry is
a spiral galaxy- centrioles-solar plants. The second one is molecule C60 in space (in cosmic dust),
clathrin in the human brain, and C60 in nanophotonics, nanocosmetics, and medicine. However,
more examples of biomimicry (from biology to engineering) are presented. One of the more
interesting examples is a container for cosmetically use with complex geometry and design based on
the pentagonal-hexagonal organization of collagen in human tissue.
According to our investigation, we can conclude that optimization of mass-energy, energyinformation,
and information-control (regulation) in the nature, biology, and engineering are
principle which determinate geometry and design of objects.
C3  - THE 7TH ICGG CONFERENCE MONGEOMETRIJA 2020, Proceedings, Belgrade: 18-21 September 2020
T1  - Mimicry of Geometry and Design from the Nature and Biology to Material Science and Engineering
EP  - 259
SP  - 251
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5613
ER  - 

@conference{
author = "Matija, Lidija and Kosić, Boris and Jeftić, Branislava and Stanković, Ivana and Koruga, Đuro",
year = "2020",
abstract = "In this paper geometry and design in material science and engineering, which have been an
inspiration from nature and biology is investigated. It is found out that symmetry, harmony, and
perfection play crucial rule in this mimicry. In the symmetry approach not only symmetry of the
crystallography group is included, but also molecular symmetry groups, Kugel and Curie symmetry
groups. The criteria of harmony are based on Fibonacci sequences and Fibonacci numbers Φ,-Φ,φ,-
φ. Symmetry and harmony are giving beauty to geometry and design in nature, biology, and
engineering. However, in this investigation, perfection is also included (based on the perfect
numbers) that gives, besides beauty, a new property of “sublime” to the objects and processes.
In this paper, a few examples of mimicry in relation to nature-biology-engineering based
on symmetry, harmony, and perfection are presented. One of the examples of that kind of mimicry is
a spiral galaxy- centrioles-solar plants. The second one is molecule C60 in space (in cosmic dust),
clathrin in the human brain, and C60 in nanophotonics, nanocosmetics, and medicine. However,
more examples of biomimicry (from biology to engineering) are presented. One of the more
interesting examples is a container for cosmetically use with complex geometry and design based on
the pentagonal-hexagonal organization of collagen in human tissue.
According to our investigation, we can conclude that optimization of mass-energy, energyinformation,
and information-control (regulation) in the nature, biology, and engineering are
principle which determinate geometry and design of objects.",
journal = "THE 7TH ICGG CONFERENCE MONGEOMETRIJA 2020, Proceedings, Belgrade: 18-21 September 2020",
title = "Mimicry of Geometry and Design from the Nature and Biology to Material Science and Engineering",
pages = "259-251",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5613"
}

Matija, L., Kosić, B., Jeftić, B., Stanković, I.,& Koruga, Đ.. (2020). Mimicry of Geometry and Design from the Nature and Biology to Material Science and Engineering. in THE 7TH ICGG CONFERENCE MONGEOMETRIJA 2020, Proceedings, Belgrade: 18-21 September 2020, 251-259.
https://hdl.handle.net/21.15107/rcub_machinery_5613

Matija L, Kosić B, Jeftić B, Stanković I, Koruga Đ. Mimicry of Geometry and Design from the Nature and Biology to Material Science and Engineering. in THE 7TH ICGG CONFERENCE MONGEOMETRIJA 2020, Proceedings, Belgrade: 18-21 September 2020. 2020;:251-259.
https://hdl.handle.net/21.15107/rcub_machinery_5613 .

Matija, Lidija, Kosić, Boris, Jeftić, Branislava, Stanković, Ivana, Koruga, Đuro, "Mimicry of Geometry and Design from the Nature and Biology to Material Science and Engineering" in THE 7TH ICGG CONFERENCE MONGEOMETRIJA 2020, Proceedings, Belgrade: 18-21 September 2020 (2020):251-259,
https://hdl.handle.net/21.15107/rcub_machinery_5613 .

TY  - CONF
AU  - Jovanović, Đorđe
AU  - Mitrović, Nenad
AU  - Marković, Zlatko
AU  - Vilotić, Dragiša
AU  - Kosić, Boris
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7692
AB  - For the past several decades, codified design of steel connections in civil-engineering is based on the component approach. For a very common end-plate connection, tension component, named T-stub, usually dictates the connections’ behaviour. This T-stub element is greatly investigated in the configuration with two bolts in a row, but configuration with four bolts in a row is usually neglected, both in the studies and codes. This paper presents an experimental investigation of T-stub elements and important aspects of their numerical modelling. Special attention is dedicated to the material testing and modelling since all of the tests were performed until bolt fracture. Uniaxial tests of steel specimens were performed using extensometers, strain gauges, and Aramis system, while bolt material is additionally tested by microscopic examination and hardness testing. In order to obtain satisfactory calibration of numerical models developed in Abaqus, knowing material
parameters including damage initiation and propagation is crucial. Several iterative numerical-experimental procedures for obtaining the true stress-strain curves are outlined and compared, along with well-known Bridgman method. The advantages of using Aramis system in calibrating numerical model, for both material and assembly are demonstrated. In the end, comparisons of numerical and experimental behaviour curves are presented and satisfactory results are obtained.
PB  - Innovation Center of Faculty of Mechanical Engineering
C3  - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2019
T1  - EXPERIMENTAL AND NUMERICAL INVESTIGATION OF THE T-STUB ELEMENTS WITH FOUR BOLTS IN A ROW UNTIL BOLT FRACTURE
SP  - 34
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7692
ER  - 

@conference{
author = "Jovanović, Đorđe and Mitrović, Nenad and Marković, Zlatko and Vilotić, Dragiša and Kosić, Boris",
year = "2019",
abstract = "For the past several decades, codified design of steel connections in civil-engineering is based on the component approach. For a very common end-plate connection, tension component, named T-stub, usually dictates the connections’ behaviour. This T-stub element is greatly investigated in the configuration with two bolts in a row, but configuration with four bolts in a row is usually neglected, both in the studies and codes. This paper presents an experimental investigation of T-stub elements and important aspects of their numerical modelling. Special attention is dedicated to the material testing and modelling since all of the tests were performed until bolt fracture. Uniaxial tests of steel specimens were performed using extensometers, strain gauges, and Aramis system, while bolt material is additionally tested by microscopic examination and hardness testing. In order to obtain satisfactory calibration of numerical models developed in Abaqus, knowing material
parameters including damage initiation and propagation is crucial. Several iterative numerical-experimental procedures for obtaining the true stress-strain curves are outlined and compared, along with well-known Bridgman method. The advantages of using Aramis system in calibrating numerical model, for both material and assembly are demonstrated. In the end, comparisons of numerical and experimental behaviour curves are presented and satisfactory results are obtained.",
publisher = "Innovation Center of Faculty of Mechanical Engineering",
journal = "International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2019",
title = "EXPERIMENTAL AND NUMERICAL INVESTIGATION OF THE T-STUB ELEMENTS WITH FOUR BOLTS IN A ROW UNTIL BOLT FRACTURE",
pages = "34",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7692"
}

Jovanović, Đ., Mitrović, N., Marković, Z., Vilotić, D.,& Kosić, B.. (2019). EXPERIMENTAL AND NUMERICAL INVESTIGATION OF THE T-STUB ELEMENTS WITH FOUR BOLTS IN A ROW UNTIL BOLT FRACTURE. in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2019
Innovation Center of Faculty of Mechanical Engineering., 34.
https://hdl.handle.net/21.15107/rcub_machinery_7692

Jovanović Đ, Mitrović N, Marković Z, Vilotić D, Kosić B. EXPERIMENTAL AND NUMERICAL INVESTIGATION OF THE T-STUB ELEMENTS WITH FOUR BOLTS IN A ROW UNTIL BOLT FRACTURE. in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2019. 2019;:34.
https://hdl.handle.net/21.15107/rcub_machinery_7692 .

Jovanović, Đorđe, Mitrović, Nenad, Marković, Zlatko, Vilotić, Dragiša, Kosić, Boris, "EXPERIMENTAL AND NUMERICAL INVESTIGATION OF THE T-STUB ELEMENTS WITH FOUR BOLTS IN A ROW UNTIL BOLT FRACTURE" in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2019 (2019):34,
https://hdl.handle.net/21.15107/rcub_machinery_7692 .

TY  - JOUR
AU  - Kosić, Boris
AU  - Jeli, Zorana
AU  - Stojićević, Miša
AU  - Popkonstantinovic, Branislav
AU  - Dragičević, Aleksandra
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5610
AB  - The paper idea was to investigate is it possible to design running prosthesis with similar design as running blades using only 3D printing technique and ABS, as one of the most used plastic material in the world. This material is very strong and manufactured parts are not very flexible. By using metamaterials some models of human running prosthesis were created and a number of simulations were made through SolidWorks Design Study package. Used approach allows finding of the best solution for custom-made human running prosthesis with the best characteristics.
Present paper gives the evidence that using of smart geometrical design of inner structure of various parts and models to reduce its mass and improve their mechanical characteristics is possible. Also, obtained model is suitable for 3D printing and it can be opportunity to product cheap prosthesis for a large number of people with disability.
PB  - JIDEG
T2  - University POLITEHNICA of Bucharest, Romania
T1  - Metamaterial Usage In Design Of Bilateral Prothetic Legs
EP  - 131
SP  - 127
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5610
ER  - 

@article{
author = "Kosić, Boris and Jeli, Zorana and Stojićević, Miša and Popkonstantinovic, Branislav and Dragičević, Aleksandra",
year = "2019",
abstract = "The paper idea was to investigate is it possible to design running prosthesis with similar design as running blades using only 3D printing technique and ABS, as one of the most used plastic material in the world. This material is very strong and manufactured parts are not very flexible. By using metamaterials some models of human running prosthesis were created and a number of simulations were made through SolidWorks Design Study package. Used approach allows finding of the best solution for custom-made human running prosthesis with the best characteristics.
Present paper gives the evidence that using of smart geometrical design of inner structure of various parts and models to reduce its mass and improve their mechanical characteristics is possible. Also, obtained model is suitable for 3D printing and it can be opportunity to product cheap prosthesis for a large number of people with disability.",
publisher = "JIDEG",
journal = "University POLITEHNICA of Bucharest, Romania",
title = "Metamaterial Usage In Design Of Bilateral Prothetic Legs",
pages = "131-127",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5610"
}

Kosić, B., Jeli, Z., Stojićević, M., Popkonstantinovic, B.,& Dragičević, A.. (2019). Metamaterial Usage In Design Of Bilateral Prothetic Legs. in University POLITEHNICA of Bucharest, Romania
JIDEG., 127-131.
https://hdl.handle.net/21.15107/rcub_machinery_5610

Kosić B, Jeli Z, Stojićević M, Popkonstantinovic B, Dragičević A. Metamaterial Usage In Design Of Bilateral Prothetic Legs. in University POLITEHNICA of Bucharest, Romania. 2019;:127-131.
https://hdl.handle.net/21.15107/rcub_machinery_5610 .

Kosić, Boris, Jeli, Zorana, Stojićević, Miša, Popkonstantinovic, Branislav, Dragičević, Aleksandra, "Metamaterial Usage In Design Of Bilateral Prothetic Legs" in University POLITEHNICA of Bucharest, Romania (2019):127-131,
https://hdl.handle.net/21.15107/rcub_machinery_5610 .

TY  - JOUR
AU  - Stojićević, Miša
AU  - Jeli, Zorana
AU  - Kosić, Boris
AU  - Cvetković, Ivana
AU  - Milićević, Rodoljub
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5608
AB  - This paper gives a scope of course called Product aesthetics at Mechanical faculty, University in Belgrade, Serbia. During this course students are learning about standards and laws in process of product design. With this knowledge students are able to create more profound ability of aesthetic evaluation and form aesthetic judgement of in creating certain mechanical product such as car, motorcycle etc. Practical part of this course includes creating a product by using a 3D CAD software which has both aesthetic value and practical usage. Students are presenting that product to other students and they give their evaluation grade.
PB  - JIDEG
T2  - University POLITEHNICA of Bucharest, Romania
T1  - Product Aesthetics For Mechanical Engineers
EP  - 587
SP  - 579
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5608
ER  - 

@article{
author = "Stojićević, Miša and Jeli, Zorana and Kosić, Boris and Cvetković, Ivana and Milićević, Rodoljub",
year = "2019",
abstract = "This paper gives a scope of course called Product aesthetics at Mechanical faculty, University in Belgrade, Serbia. During this course students are learning about standards and laws in process of product design. With this knowledge students are able to create more profound ability of aesthetic evaluation and form aesthetic judgement of in creating certain mechanical product such as car, motorcycle etc. Practical part of this course includes creating a product by using a 3D CAD software which has both aesthetic value and practical usage. Students are presenting that product to other students and they give their evaluation grade.",
publisher = "JIDEG",
journal = "University POLITEHNICA of Bucharest, Romania",
title = "Product Aesthetics For Mechanical Engineers",
pages = "587-579",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5608"
}

Stojićević, M., Jeli, Z., Kosić, B., Cvetković, I.,& Milićević, R.. (2019). Product Aesthetics For Mechanical Engineers. in University POLITEHNICA of Bucharest, Romania
JIDEG., 579-587.
https://hdl.handle.net/21.15107/rcub_machinery_5608

Stojićević M, Jeli Z, Kosić B, Cvetković I, Milićević R. Product Aesthetics For Mechanical Engineers. in University POLITEHNICA of Bucharest, Romania. 2019;:579-587.
https://hdl.handle.net/21.15107/rcub_machinery_5608 .

Stojićević, Miša, Jeli, Zorana, Kosić, Boris, Cvetković, Ivana, Milićević, Rodoljub, "Product Aesthetics For Mechanical Engineers" in University POLITEHNICA of Bucharest, Romania (2019):579-587,
https://hdl.handle.net/21.15107/rcub_machinery_5608 .

TY  - CONF
AU  - Jeli, Zorana
AU  - Popkonstantinović, Branislav
AU  - Stojićević, Miša
AU  - Kosić, Boris
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5612
AB  - This paper gives a scope of a course called Aesthetics Design at the Faculty of Mechanical 
Engineering, University in Belgrade, Serbia. At this course students learn about standards 
and laws in process of product design. With the knowledge gained at the course students 
are able to develop more profound ability of aesthetic evaluation and form aesthetic judge ment in creating certain mechanical products such as cars, motorcycles, etc. Practical part 
of this course includes creating a product by using a 3D CAD software which has both aes thetic value and practical usage. Students present their products to other students and 
then evaluate each others’ achievement. This course is taught at undergraduate studies 
(B.Sc.) and it is in the group of general subjects/courses.
The origin of the word aesthetics comes from Greek word aisthesis that can be rough ly translated as sensation or understanding through perception. It usually represents a 
branch of philosophy that studies creation and appreciation of beauty in art. There are 
many applications for aesthetics – in architecture, fashion, website design, music etc. Basi cally everything that surrounds us can be subjected to certain kind of aesthetical judgment 
and that is the reason for the rising of awareness of importance for aesthetic in all occupa tions. For instance, while designing a product an engineer must take in consideration many 
aspects before dispatching product on market. These aspects include: robustness, lifetime 
expectancy, price, ergonomics, etc. One of this aspects is the appearance of a product. Av erage buyer makes its first impression based on product appearance. The more appealing a 
product, the higher probability that buyer will purchase it.
PB  - Fakultet primenjenih umetnosti u Beogradu
C3  - 1st International Conference SmartArt
T1  - Aesthetics Design For Mechanical Engineers
SP  - 116
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5612
ER  - 

@conference{
author = "Jeli, Zorana and Popkonstantinović, Branislav and Stojićević, Miša and Kosić, Boris",
year = "2019",
abstract = "This paper gives a scope of a course called Aesthetics Design at the Faculty of Mechanical 
Engineering, University in Belgrade, Serbia. At this course students learn about standards 
and laws in process of product design. With the knowledge gained at the course students 
are able to develop more profound ability of aesthetic evaluation and form aesthetic judge ment in creating certain mechanical products such as cars, motorcycles, etc. Practical part 
of this course includes creating a product by using a 3D CAD software which has both aes thetic value and practical usage. Students present their products to other students and 
then evaluate each others’ achievement. This course is taught at undergraduate studies 
(B.Sc.) and it is in the group of general subjects/courses.
The origin of the word aesthetics comes from Greek word aisthesis that can be rough ly translated as sensation or understanding through perception. It usually represents a 
branch of philosophy that studies creation and appreciation of beauty in art. There are 
many applications for aesthetics – in architecture, fashion, website design, music etc. Basi cally everything that surrounds us can be subjected to certain kind of aesthetical judgment 
and that is the reason for the rising of awareness of importance for aesthetic in all occupa tions. For instance, while designing a product an engineer must take in consideration many 
aspects before dispatching product on market. These aspects include: robustness, lifetime 
expectancy, price, ergonomics, etc. One of this aspects is the appearance of a product. Av erage buyer makes its first impression based on product appearance. The more appealing a 
product, the higher probability that buyer will purchase it.",
publisher = "Fakultet primenjenih umetnosti u Beogradu",
journal = "1st International Conference SmartArt",
title = "Aesthetics Design For Mechanical Engineers",
pages = "116",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5612"
}

Jeli, Z., Popkonstantinović, B., Stojićević, M.,& Kosić, B.. (2019). Aesthetics Design For Mechanical Engineers. in 1st International Conference SmartArt
Fakultet primenjenih umetnosti u Beogradu., 116.
https://hdl.handle.net/21.15107/rcub_machinery_5612

Jeli Z, Popkonstantinović B, Stojićević M, Kosić B. Aesthetics Design For Mechanical Engineers. in 1st International Conference SmartArt. 2019;:116.
https://hdl.handle.net/21.15107/rcub_machinery_5612 .

Jeli, Zorana, Popkonstantinović, Branislav, Stojićević, Miša, Kosić, Boris, "Aesthetics Design For Mechanical Engineers" in 1st International Conference SmartArt (2019):116,
https://hdl.handle.net/21.15107/rcub_machinery_5612 .

TY  - CONF
AU  - Jeli, Zorana
AU  - Kosić, Boris
AU  - Stojićević, Miša
AU  - Berdić, S.
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3224
AB  - For many years, various ways of fixing skiing shoes for skiing have been used. With the development of technology that is applied in this very popular sport, there is an increasing need for enhanced conditions related to personal safety of users. Over time different kind of mechanisms were used for this purpose differed. Currently, the most effective way to safely connect the ski boot/ski shoes to the ski is achieved by a camber-blocking mechanism. In this paper, we conducted analysis of a ski binding using the SolidWorks2018 software package, checked its functioning under the given conditions (which are very close to the real conditions) and come up with results that could be used in practice. Results were analyzed and the results were compared mutually in order to receive the most optimal solutions. Also, a methodology used in this paper is the same as one developed for the teaching process in the subject Design of Mechanisms at Bachelor Studies at the Belgrade Faculty of Mechanical Engineering.
PB  - Springer Science and Business Media B.V.
C3  - Mechanisms and Machine Science
T1  - 3D Modeling and Analysis of Ski Binding Mechanism
EP  - 587
SP  - 579
VL  - 73
DO  - 10.1007/978-3-030-20131-9_58
ER  - 

@conference{
author = "Jeli, Zorana and Kosić, Boris and Stojićević, Miša and Berdić, S.",
year = "2019",
abstract = "For many years, various ways of fixing skiing shoes for skiing have been used. With the development of technology that is applied in this very popular sport, there is an increasing need for enhanced conditions related to personal safety of users. Over time different kind of mechanisms were used for this purpose differed. Currently, the most effective way to safely connect the ski boot/ski shoes to the ski is achieved by a camber-blocking mechanism. In this paper, we conducted analysis of a ski binding using the SolidWorks2018 software package, checked its functioning under the given conditions (which are very close to the real conditions) and come up with results that could be used in practice. Results were analyzed and the results were compared mutually in order to receive the most optimal solutions. Also, a methodology used in this paper is the same as one developed for the teaching process in the subject Design of Mechanisms at Bachelor Studies at the Belgrade Faculty of Mechanical Engineering.",
publisher = "Springer Science and Business Media B.V.",
journal = "Mechanisms and Machine Science",
title = "3D Modeling and Analysis of Ski Binding Mechanism",
pages = "587-579",
volume = "73",
doi = "10.1007/978-3-030-20131-9_58"
}

Jeli, Z., Kosić, B., Stojićević, M.,& Berdić, S.. (2019). 3D Modeling and Analysis of Ski Binding Mechanism. in Mechanisms and Machine Science
Springer Science and Business Media B.V.., 73, 579-587.
https://doi.org/10.1007/978-3-030-20131-9_58

Jeli Z, Kosić B, Stojićević M, Berdić S. 3D Modeling and Analysis of Ski Binding Mechanism. in Mechanisms and Machine Science. 2019;73:579-587.
doi:10.1007/978-3-030-20131-9_58 .

Jeli, Zorana, Kosić, Boris, Stojićević, Miša, Berdić, S., "3D Modeling and Analysis of Ski Binding Mechanism" in Mechanisms and Machine Science, 73 (2019):579-587,
https://doi.org/10.1007/978-3-030-20131-9_58 . .

TY  - JOUR
AU  - Kosić, Boris
AU  - Stojićević, Miša
AU  - Jeli, Zorana
AU  - Pokonstantinović, Branislav
AU  - Duta, Alina
AU  - Dragičević, Aleksandra
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3122
AB  - Ovaj rad istražuje uticaj različitih geometrijskih struktura na nove koncepte formiranja tehničkih sistema. Sposobnost da neke geometrijske strukture budu u stanju da izdrže određeni nivo deformacije, koristilo se za zamenu zglobova u određenim sklopovima tehničkih sistema. Sada sva ta kretanja mogu da se postignu deformacijom geometrijskih struktura. Dobijeni rezultati iz simulacija, definišu nivo deformacije koje strukture mogu izdržati. Projektovanje 3D modela i simulacija sprovedeno je u SoildWorks 2016. U okviru ovog rada ispitano je nekoliko različitih struktura metamaterijala. Izvršene su 64 simulacije promenom unutrašnje strukture, debljine i orijentacije metamaterijala. Za svaki simulaciju kao rezyltat su dobijani naponi i pomeranja. Pored toga, izvršena je simulacija tri modela klješta, u kojima su upotrebljeni meta-materijali ispitivane geometrije, a rezultati su upoređeni sa rezultatima prethodnih simulacija.
AB  - This paper investigates the influence of different geometrical structures on new concepts for the formation of technical systems. The ability of some geometric structures to withstand a certain level of deformation, was used to replace joints in certain assemblies of technical systems. Now, all movements are accomplished with deformation of geometrical structures. Obtained results from simulations define the level of deformation which structures can withstand. Designing of 3D models and simulations were conducted in SOLIDWORKS 2016. Several different structures of metamaterials will be examined. Sixty-four simulations were conducted by changing the internal structure, thickness and orientation of metamaterials. For each simulation, the results were presented as stresses and displacements. Additionally, three model of pliers have been simulated, and its results were compared with the results from previous simulations.
PB  - Univerzitet u Beogradu - Mašinski fakultet, Beograd
T2  - FME Transactions
T1  - 3D analiza različne geometrije metamaterijala i simulacije upotrebe metamaterijala takvih geometrija
T1  - 3D analysis of different metamaterial geometry and simulation of metamaterial usage
EP  - 354
IS  - 2
SP  - 349
VL  - 47
DO  - 10.5937/fmet1902349K
ER  - 

@article{
author = "Kosić, Boris and Stojićević, Miša and Jeli, Zorana and Pokonstantinović, Branislav and Duta, Alina and Dragičević, Aleksandra",
year = "2019",
abstract = "Ovaj rad istražuje uticaj različitih geometrijskih struktura na nove koncepte formiranja tehničkih sistema. Sposobnost da neke geometrijske strukture budu u stanju da izdrže određeni nivo deformacije, koristilo se za zamenu zglobova u određenim sklopovima tehničkih sistema. Sada sva ta kretanja mogu da se postignu deformacijom geometrijskih struktura. Dobijeni rezultati iz simulacija, definišu nivo deformacije koje strukture mogu izdržati. Projektovanje 3D modela i simulacija sprovedeno je u SoildWorks 2016. U okviru ovog rada ispitano je nekoliko različitih struktura metamaterijala. Izvršene su 64 simulacije promenom unutrašnje strukture, debljine i orijentacije metamaterijala. Za svaki simulaciju kao rezyltat su dobijani naponi i pomeranja. Pored toga, izvršena je simulacija tri modela klješta, u kojima su upotrebljeni meta-materijali ispitivane geometrije, a rezultati su upoređeni sa rezultatima prethodnih simulacija., This paper investigates the influence of different geometrical structures on new concepts for the formation of technical systems. The ability of some geometric structures to withstand a certain level of deformation, was used to replace joints in certain assemblies of technical systems. Now, all movements are accomplished with deformation of geometrical structures. Obtained results from simulations define the level of deformation which structures can withstand. Designing of 3D models and simulations were conducted in SOLIDWORKS 2016. Several different structures of metamaterials will be examined. Sixty-four simulations were conducted by changing the internal structure, thickness and orientation of metamaterials. For each simulation, the results were presented as stresses and displacements. Additionally, three model of pliers have been simulated, and its results were compared with the results from previous simulations.",
publisher = "Univerzitet u Beogradu - Mašinski fakultet, Beograd",
journal = "FME Transactions",
title = "3D analiza različne geometrije metamaterijala i simulacije upotrebe metamaterijala takvih geometrija, 3D analysis of different metamaterial geometry and simulation of metamaterial usage",
pages = "354-349",
number = "2",
volume = "47",
doi = "10.5937/fmet1902349K"
}

Kosić, B., Stojićević, M., Jeli, Z., Pokonstantinović, B., Duta, A.,& Dragičević, A.. (2019). 3D analiza različne geometrije metamaterijala i simulacije upotrebe metamaterijala takvih geometrija. in FME Transactions
Univerzitet u Beogradu - Mašinski fakultet, Beograd., 47(2), 349-354.
https://doi.org/10.5937/fmet1902349K

Kosić B, Stojićević M, Jeli Z, Pokonstantinović B, Duta A, Dragičević A. 3D analiza različne geometrije metamaterijala i simulacije upotrebe metamaterijala takvih geometrija. in FME Transactions. 2019;47(2):349-354.
doi:10.5937/fmet1902349K .

Kosić, Boris, Stojićević, Miša, Jeli, Zorana, Pokonstantinović, Branislav, Duta, Alina, Dragičević, Aleksandra, "3D analiza različne geometrije metamaterijala i simulacije upotrebe metamaterijala takvih geometrija" in FME Transactions, 47, no. 2 (2019):349-354,
https://doi.org/10.5937/fmet1902349K . .

TY  - CONF
AU  - Kosić, Boris
AU  - Stojićević, Miša
AU  - Jeli, Zorana
AU  - Popkonstantinović, Branislav
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5800
AB  - This paper investigate influence of different geometrical structures on new concepts for formation of 
technical systems. Ability that some geometric structures are able to withstand a certain level of 
deformation, was used to replace joints in certain assemblies of technical systems. Now all 
movements are accomplished with deformation of geometrical structures. Obtained results from 
simulations, define level of deformation which structures can withstand. Designing of 3D models and 
simulations were conducted in SOLIDWORKS 2016. 
Several different structure of metamaterials will be examined. 64 simulations were conducted by 
changing internal structure, thickness and orientation of metamaterials. For each simulation results 
were presented as stresses and displacements. Additionally three model of pliers have been 
simulated, and its results were compared with results from previous simulations.
PB  - SUGIG
C3  - 6th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art
T1  - Analysis Of Diferent Metamaterial Geometry, Analysis Of Diferent Metamaterial Geometry
EP  - 73
SP  - 64
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5800
ER  - 

@conference{
author = "Kosić, Boris and Stojićević, Miša and Jeli, Zorana and Popkonstantinović, Branislav",
year = "2018",
abstract = "This paper investigate influence of different geometrical structures on new concepts for formation of 
technical systems. Ability that some geometric structures are able to withstand a certain level of 
deformation, was used to replace joints in certain assemblies of technical systems. Now all 
movements are accomplished with deformation of geometrical structures. Obtained results from 
simulations, define level of deformation which structures can withstand. Designing of 3D models and 
simulations were conducted in SOLIDWORKS 2016. 
Several different structure of metamaterials will be examined. 64 simulations were conducted by 
changing internal structure, thickness and orientation of metamaterials. For each simulation results 
were presented as stresses and displacements. Additionally three model of pliers have been 
simulated, and its results were compared with results from previous simulations.",
publisher = "SUGIG",
journal = "6th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art",
title = "Analysis Of Diferent Metamaterial Geometry, Analysis Of Diferent Metamaterial Geometry",
pages = "73-64",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5800"
}

Kosić, B., Stojićević, M., Jeli, Z.,& Popkonstantinović, B.. (2018). Analysis Of Diferent Metamaterial Geometry, Analysis Of Diferent Metamaterial Geometry. in 6th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art
SUGIG., 64-73.
https://hdl.handle.net/21.15107/rcub_machinery_5800

Kosić B, Stojićević M, Jeli Z, Popkonstantinović B. Analysis Of Diferent Metamaterial Geometry, Analysis Of Diferent Metamaterial Geometry. in 6th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art. 2018;:64-73.
https://hdl.handle.net/21.15107/rcub_machinery_5800 .

Kosić, Boris, Stojićević, Miša, Jeli, Zorana, Popkonstantinović, Branislav, "Analysis Of Diferent Metamaterial Geometry, Analysis Of Diferent Metamaterial Geometry" in 6th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art (2018):64-73,
https://hdl.handle.net/21.15107/rcub_machinery_5800 .

TY  - CONF
AU  - Kosić, Boris
AU  - Stojićević, Miša
AU  - Jeli, Zorana
AU  - Popkonstantinović, Branislav
AU  - Dragičević, Aleksandra
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5599
AB  - Different geometry of metameterials has ability to withstand a certain level of deformation, and is used to replace joints in certain assemblies of technical systems. Using this characteristic of metametrials, all movements could be accomplished with deformation of technical system structures.

This paper cover examination on two different kind of geometry structure of metamaterials, regular and irregular octagon, and the influence of their geometrical structures, as a new concepts for formation of technical systems. A larger number of simulations have been conducted by changing internal structure and orientation of metamaterials. Also, those metametarials have been used on some of the model of pliers. Further, the pliers models were simulated, and results were compared with the results from previous simulations. For each simulation the results were presented as stresses and displacements with the same load, but different direction of force. SOLIDWORKS 2016, as a powerful tool for this kind of analysis, had been used for simulation, design of the 3D models and whole study. The results obtained from simulations, using design study, define the level of deformation which structures can withstand, and therewithal, they gave the ideas for methodology of the concept for preparing geometry of metametrials.
C3  - CNN Tech 2018 "International Conference of Experimental and Numerical Investigations and New Technologies", Book of Abstracts
T1  - Design Study of the Different Metamaterial Shapes
SP  - 12-12
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5599
ER  - 

@conference{
author = "Kosić, Boris and Stojićević, Miša and Jeli, Zorana and Popkonstantinović, Branislav and Dragičević, Aleksandra",
year = "2018",
abstract = "Different geometry of metameterials has ability to withstand a certain level of deformation, and is used to replace joints in certain assemblies of technical systems. Using this characteristic of metametrials, all movements could be accomplished with deformation of technical system structures.

This paper cover examination on two different kind of geometry structure of metamaterials, regular and irregular octagon, and the influence of their geometrical structures, as a new concepts for formation of technical systems. A larger number of simulations have been conducted by changing internal structure and orientation of metamaterials. Also, those metametarials have been used on some of the model of pliers. Further, the pliers models were simulated, and results were compared with the results from previous simulations. For each simulation the results were presented as stresses and displacements with the same load, but different direction of force. SOLIDWORKS 2016, as a powerful tool for this kind of analysis, had been used for simulation, design of the 3D models and whole study. The results obtained from simulations, using design study, define the level of deformation which structures can withstand, and therewithal, they gave the ideas for methodology of the concept for preparing geometry of metametrials.",
journal = "CNN Tech 2018 "International Conference of Experimental and Numerical Investigations and New Technologies", Book of Abstracts",
title = "Design Study of the Different Metamaterial Shapes",
pages = "12-12",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5599"
}

Kosić, B., Stojićević, M., Jeli, Z., Popkonstantinović, B.,& Dragičević, A.. (2018). Design Study of the Different Metamaterial Shapes. in CNN Tech 2018 "International Conference of Experimental and Numerical Investigations and New Technologies", Book of Abstracts, 12-12.
https://hdl.handle.net/21.15107/rcub_machinery_5599

Kosić B, Stojićević M, Jeli Z, Popkonstantinović B, Dragičević A. Design Study of the Different Metamaterial Shapes. in CNN Tech 2018 "International Conference of Experimental and Numerical Investigations and New Technologies", Book of Abstracts. 2018;:12-12.
https://hdl.handle.net/21.15107/rcub_machinery_5599 .

Kosić, Boris, Stojićević, Miša, Jeli, Zorana, Popkonstantinović, Branislav, Dragičević, Aleksandra, "Design Study of the Different Metamaterial Shapes" in CNN Tech 2018 "International Conference of Experimental and Numerical Investigations and New Technologies", Book of Abstracts (2018):12-12,
https://hdl.handle.net/21.15107/rcub_machinery_5599 .

TY  - CONF
AU  - Dragičević, Aleksandra
AU  - Kosić, Boris
AU  - Jeli, Zorana
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5606
AB  - Reducing of the data dimensionality is necessary and required for optimal model performance in machine learning. Two different approaches are used in practice to solve this problem. The basic idea of the first one is to reduce dimensionality by removing highly correlated variables which implies that multiple variables measure same thing. It is done by removing all variables with high average correlation. In this way, variables are removed regardless to its significance to model accuracy, and as a result model accuracy can significantly drop.

In the second one, for the better understanding of the data, relationship between variables and the model outcome, it is necessary to quantify variable impact on model outcome, and rank them according to these values. By using this approach, variables with lowest importance are removed from data set, and can lead to an increasing in the performance and accuracy of the final model.

In the datasets with the highly correlated variables (e.g. sets of spectroscopy data), the most important variables can be with the highest average correlation, and after removing those variables the accuracy of the model can be significantly reduced. Based on the previous facts, the new method that used the most important variables with lowest correlation is proposed, as a combination of the previous two, and with this approach it is possible significantly to reduce dataset dimensionality where the variables have small correlation.
C3  - CNN Tech 2018 "International Conference of Experimental and Numerical Investigations and New Technologies", Book of Abstracts
T1  - The New Method for Removing Highly Correlated Variables from Datasets
SP  - 13-13
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5606
ER  - 

@conference{
author = "Dragičević, Aleksandra and Kosić, Boris and Jeli, Zorana",
year = "2018",
abstract = "Reducing of the data dimensionality is necessary and required for optimal model performance in machine learning. Two different approaches are used in practice to solve this problem. The basic idea of the first one is to reduce dimensionality by removing highly correlated variables which implies that multiple variables measure same thing. It is done by removing all variables with high average correlation. In this way, variables are removed regardless to its significance to model accuracy, and as a result model accuracy can significantly drop.

In the second one, for the better understanding of the data, relationship between variables and the model outcome, it is necessary to quantify variable impact on model outcome, and rank them according to these values. By using this approach, variables with lowest importance are removed from data set, and can lead to an increasing in the performance and accuracy of the final model.

In the datasets with the highly correlated variables (e.g. sets of spectroscopy data), the most important variables can be with the highest average correlation, and after removing those variables the accuracy of the model can be significantly reduced. Based on the previous facts, the new method that used the most important variables with lowest correlation is proposed, as a combination of the previous two, and with this approach it is possible significantly to reduce dataset dimensionality where the variables have small correlation.",
journal = "CNN Tech 2018 "International Conference of Experimental and Numerical Investigations and New Technologies", Book of Abstracts",
title = "The New Method for Removing Highly Correlated Variables from Datasets",
pages = "13-13",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5606"
}

Dragičević, A., Kosić, B.,& Jeli, Z.. (2018). The New Method for Removing Highly Correlated Variables from Datasets. in CNN Tech 2018 "International Conference of Experimental and Numerical Investigations and New Technologies", Book of Abstracts, 13-13.
https://hdl.handle.net/21.15107/rcub_machinery_5606

Dragičević A, Kosić B, Jeli Z. The New Method for Removing Highly Correlated Variables from Datasets. in CNN Tech 2018 "International Conference of Experimental and Numerical Investigations and New Technologies", Book of Abstracts. 2018;:13-13.
https://hdl.handle.net/21.15107/rcub_machinery_5606 .

Dragičević, Aleksandra, Kosić, Boris, Jeli, Zorana, "The New Method for Removing Highly Correlated Variables from Datasets" in CNN Tech 2018 "International Conference of Experimental and Numerical Investigations and New Technologies", Book of Abstracts (2018):13-13,
https://hdl.handle.net/21.15107/rcub_machinery_5606 .

TY  - PAT
AU  - Mitrović, Nenad
AU  - Miletić, Vesna
AU  - Milošević, Miloš
AU  - Dragičević, Aleksandra
AU  - Kosić, Boris
AU  - Mitrović, Aleksandra
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5902
T2  - Zavod za intelektualnu svojinu 2018
T1  - System for synchronised measurement of deformations and temperature changes of the sample
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5902
ER  - 

@misc{
author = "Mitrović, Nenad and Miletić, Vesna and Milošević, Miloš and Dragičević, Aleksandra and Kosić, Boris and Mitrović, Aleksandra",
year = "2018",
journal = "Zavod za intelektualnu svojinu 2018",
title = "System for synchronised measurement of deformations and temperature changes of the sample",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5902"
}

Mitrović, N., Miletić, V., Milošević, M., Dragičević, A., Kosić, B.,& Mitrović, A.. (2018). System for synchronised measurement of deformations and temperature changes of the sample. in Zavod za intelektualnu svojinu 2018.
https://hdl.handle.net/21.15107/rcub_machinery_5902

Mitrović N, Miletić V, Milošević M, Dragičević A, Kosić B, Mitrović A. System for synchronised measurement of deformations and temperature changes of the sample. in Zavod za intelektualnu svojinu 2018. 2018;.
https://hdl.handle.net/21.15107/rcub_machinery_5902 .

Mitrović, Nenad, Miletić, Vesna, Milošević, Miloš, Dragičević, Aleksandra, Kosić, Boris, Mitrović, Aleksandra, "System for synchronised measurement of deformations and temperature changes of the sample" in Zavod za intelektualnu svojinu 2018 (2018),
https://hdl.handle.net/21.15107/rcub_machinery_5902 .

TY  - CONF
AU  - Dragičević, Aleksandra
AU  - Kosić, Boris
AU  - Matija, Lidija
AU  - Krivokapić, Zoran
AU  - Baros, Marko
PY  - 2017
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5735
AB  - The later stages of malignant growths are characterized by a severe and progressive depression in the blood
haemoglobin level. Iron is essential for virtually all living organisms and participates in a wide variety of
metabolic processes, including oxygen transport and electron transport. As such, ions of Fe2+ and O2 are
strong paramagnetic, but linked together their complex shows week paramagnetic (0.15 nT) or diamagnetic
properties. As all matter consists of atoms that contain particles with an electric charge, our body and
everything around us is magnetic.
In this study, a methodology usually used in rock magnetism was applied to evaluate the magnetic properties
of the human tissue. We demonstrate, for the first time to our knowledge, usage of the dual speed spinner
magnetometer, with accuracy 2.4 A/m (3pT), for measuring difference of remanent magnetism (gap)
between healthy and cancer colon tissue. The ex vivo experiment was conducted on 76 samples (from 39
patients) immediately after bowel resection. Tissue samples were taken from patients of both sexes, different
ages, and with confirmed histopathological colorectal carcinoma. The results indicate differences between
normal mucosa (healthy tissue) and cancer with average values of 0.91775±0.046 mA/m (1.153 nT) for
healthy tissue and 0.17441 ± 0.009 mA/m (0.219 nT) for cancer, and confirm the existence of differences in
the measurement of paramagnetic and diamagnetic properties of healthy and cancerous tissue. Bearing in
mind that the number of 32 samples is good for preliminary research but not good enough for clinical
application, further studies are necessary.
C3  - CNN Tech 2017 "International Conference of Experimental and Numerical Investigations and New Technologies", Book of Abstracts
T1  - Magnetic properties of the human colon tissue using spinner magnetometer: A case study
EP  - 15
SP  - 15
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5735
ER  - 

@conference{
author = "Dragičević, Aleksandra and Kosić, Boris and Matija, Lidija and Krivokapić, Zoran and Baros, Marko",
year = "2017",
abstract = "The later stages of malignant growths are characterized by a severe and progressive depression in the blood
haemoglobin level. Iron is essential for virtually all living organisms and participates in a wide variety of
metabolic processes, including oxygen transport and electron transport. As such, ions of Fe2+ and O2 are
strong paramagnetic, but linked together their complex shows week paramagnetic (0.15 nT) or diamagnetic
properties. As all matter consists of atoms that contain particles with an electric charge, our body and
everything around us is magnetic.
In this study, a methodology usually used in rock magnetism was applied to evaluate the magnetic properties
of the human tissue. We demonstrate, for the first time to our knowledge, usage of the dual speed spinner
magnetometer, with accuracy 2.4 A/m (3pT), for measuring difference of remanent magnetism (gap)
between healthy and cancer colon tissue. The ex vivo experiment was conducted on 76 samples (from 39
patients) immediately after bowel resection. Tissue samples were taken from patients of both sexes, different
ages, and with confirmed histopathological colorectal carcinoma. The results indicate differences between
normal mucosa (healthy tissue) and cancer with average values of 0.91775±0.046 mA/m (1.153 nT) for
healthy tissue and 0.17441 ± 0.009 mA/m (0.219 nT) for cancer, and confirm the existence of differences in
the measurement of paramagnetic and diamagnetic properties of healthy and cancerous tissue. Bearing in
mind that the number of 32 samples is good for preliminary research but not good enough for clinical
application, further studies are necessary.",
journal = "CNN Tech 2017 "International Conference of Experimental and Numerical Investigations and New Technologies", Book of Abstracts",
title = "Magnetic properties of the human colon tissue using spinner magnetometer: A case study",
pages = "15-15",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5735"
}

Dragičević, A., Kosić, B., Matija, L., Krivokapić, Z.,& Baros, M.. (2017). Magnetic properties of the human colon tissue using spinner magnetometer: A case study. in CNN Tech 2017 "International Conference of Experimental and Numerical Investigations and New Technologies", Book of Abstracts, 15-15.
https://hdl.handle.net/21.15107/rcub_machinery_5735

Dragičević A, Kosić B, Matija L, Krivokapić Z, Baros M. Magnetic properties of the human colon tissue using spinner magnetometer: A case study. in CNN Tech 2017 "International Conference of Experimental and Numerical Investigations and New Technologies", Book of Abstracts. 2017;:15-15.
https://hdl.handle.net/21.15107/rcub_machinery_5735 .

Dragičević, Aleksandra, Kosić, Boris, Matija, Lidija, Krivokapić, Zoran, Baros, Marko, "Magnetic properties of the human colon tissue using spinner magnetometer: A case study" in CNN Tech 2017 "International Conference of Experimental and Numerical Investigations and New Technologies", Book of Abstracts (2017):15-15,
https://hdl.handle.net/21.15107/rcub_machinery_5735 .

TY  - JOUR
AU  - Šakota-Rosić, Jovana
AU  - Munćan, Jelena S.
AU  - Mileusnić, Ivana
AU  - Kosić, Boris
AU  - Matija, Lidija
PY  - 2016
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2419
AB  - The aim of this study was to determine if it is possible to distinguish between the groups of spoiled and unspoiled soft contact lenses using near-infrared spectroscopy and new analytical approach - Aquaphotomics. Using the principal component analysis, it was established that the absorbance spectra of worn and new contact lenses are differed at water absorption band related to hydration of proteins. Detection of proteins thus was performed indirectly by using vibrations of water molecules. This exploratory study showed that near-infrared spectroscopy and Aquaphotomics have potential for non-invasive, chemical-free detection of protein deposits on hydrated soft contact lenses.
PB  - Taylor & Francis Inc, Philadelphia
T2  - Soft Materials
T1  - Detection of protein deposits using NIR spectroscopy
EP  - 271
IS  - 4
SP  - 264
VL  - 14
DO  - 10.1080/1539445X.2016.1198377
ER  - 

@article{
author = "Šakota-Rosić, Jovana and Munćan, Jelena S. and Mileusnić, Ivana and Kosić, Boris and Matija, Lidija",
year = "2016",
abstract = "The aim of this study was to determine if it is possible to distinguish between the groups of spoiled and unspoiled soft contact lenses using near-infrared spectroscopy and new analytical approach - Aquaphotomics. Using the principal component analysis, it was established that the absorbance spectra of worn and new contact lenses are differed at water absorption band related to hydration of proteins. Detection of proteins thus was performed indirectly by using vibrations of water molecules. This exploratory study showed that near-infrared spectroscopy and Aquaphotomics have potential for non-invasive, chemical-free detection of protein deposits on hydrated soft contact lenses.",
publisher = "Taylor & Francis Inc, Philadelphia",
journal = "Soft Materials",
title = "Detection of protein deposits using NIR spectroscopy",
pages = "271-264",
number = "4",
volume = "14",
doi = "10.1080/1539445X.2016.1198377"
}

Šakota-Rosić, J., Munćan, J. S., Mileusnić, I., Kosić, B.,& Matija, L.. (2016). Detection of protein deposits using NIR spectroscopy. in Soft Materials
Taylor & Francis Inc, Philadelphia., 14(4), 264-271.
https://doi.org/10.1080/1539445X.2016.1198377

Šakota-Rosić J, Munćan JS, Mileusnić I, Kosić B, Matija L. Detection of protein deposits using NIR spectroscopy. in Soft Materials. 2016;14(4):264-271.
doi:10.1080/1539445X.2016.1198377 .

Šakota-Rosić, Jovana, Munćan, Jelena S., Mileusnić, Ivana, Kosić, Boris, Matija, Lidija, "Detection of protein deposits using NIR spectroscopy" in Soft Materials, 14, no. 4 (2016):264-271,
https://doi.org/10.1080/1539445X.2016.1198377 . .

TY  - CHAP
AU  - Ilanković, Vera
AU  - Dragičević, Aleksandra
AU  - Ilanković, Andrej
AU  - Kosić, Boris
AU  - Ranković, Novak
PY  - 2016
UR  - http://www.icf.fasper.bg.ac.rs/zbornici/Tematski%20zbornik%202016%20-%20Somato.pdf
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5840
AB  - Systematic reviews indicate that deformities of the spinal column are one of the major problem of today’s children and a significant problem in the future since it’s increase from year to year. During the growth and development, the locomotor system is all the time under the influence of external and internal factors, and as such is subject to deformation. Heritage and bad habits of posture, the load caused by school bags, inadequate working environment, insufficient physical activity leads to disturbed statics of the spinal column, and results with the occurrence of kyphosis, scoliosis and lordosis. The problem of static disorder directly has the influence and makes disorders in dynamics. Physical exercise programs that include strength training and stretching, with the special emphasis on the load of anti-gravitational postural muscles, should help in the prevention of health problems that might arise. Of course, the maximum effect is achieved by activity throughout life. Complete control of procedures of the kinetic parameters has a very important role in the rehabilitation of children with irregular body posture, as well as in therapeutic methods in general. Measuring instruments which estimate anthropological and functional status of the individual belong to the principles of complete control, with the aim of improving diagnosis, monitoring and determining the effect of rehabilitation treatment. The subject of our work belongs to the field of biomedical research, and in the narrow sense it treats the issue of body deformities in children of preschool and school age, treatment of the same, and determination of the condition of postural disorders, i.e. status of the spinal column, as well as the possibility of developing and implementing the new program for correction, with a special emphasis on scoliosis. Theme of our work gives the opportunity of application of a new therapeutic programme “scolio-correct” to the correction of spinal deformity.
PB  - University of Belgrade – Faculty of Special Education and Rehabilitation Publishing Center of the Faculty
T2  - EARLY Intervention in Special Education and Rehabilitation : thematic collection of international importance
T1  - Early and continuous prevention of function disorders and locomotor system deformations during the period of growth and development, Early intervention in special education and rehabilitation
EP  - 100
SP  - 77
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5840
ER  - 

@inbook{
author = "Ilanković, Vera and Dragičević, Aleksandra and Ilanković, Andrej and Kosić, Boris and Ranković, Novak",
year = "2016",
abstract = "Systematic reviews indicate that deformities of the spinal column are one of the major problem of today’s children and a significant problem in the future since it’s increase from year to year. During the growth and development, the locomotor system is all the time under the influence of external and internal factors, and as such is subject to deformation. Heritage and bad habits of posture, the load caused by school bags, inadequate working environment, insufficient physical activity leads to disturbed statics of the spinal column, and results with the occurrence of kyphosis, scoliosis and lordosis. The problem of static disorder directly has the influence and makes disorders in dynamics. Physical exercise programs that include strength training and stretching, with the special emphasis on the load of anti-gravitational postural muscles, should help in the prevention of health problems that might arise. Of course, the maximum effect is achieved by activity throughout life. Complete control of procedures of the kinetic parameters has a very important role in the rehabilitation of children with irregular body posture, as well as in therapeutic methods in general. Measuring instruments which estimate anthropological and functional status of the individual belong to the principles of complete control, with the aim of improving diagnosis, monitoring and determining the effect of rehabilitation treatment. The subject of our work belongs to the field of biomedical research, and in the narrow sense it treats the issue of body deformities in children of preschool and school age, treatment of the same, and determination of the condition of postural disorders, i.e. status of the spinal column, as well as the possibility of developing and implementing the new program for correction, with a special emphasis on scoliosis. Theme of our work gives the opportunity of application of a new therapeutic programme “scolio-correct” to the correction of spinal deformity.",
publisher = "University of Belgrade – Faculty of Special Education and Rehabilitation Publishing Center of the Faculty",
journal = "EARLY Intervention in Special Education and Rehabilitation : thematic collection of international importance",
booktitle = "Early and continuous prevention of function disorders and locomotor system deformations during the period of growth and development, Early intervention in special education and rehabilitation",
pages = "100-77",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5840"
}

Ilanković, V., Dragičević, A., Ilanković, A., Kosić, B.,& Ranković, N.. (2016). Early and continuous prevention of function disorders and locomotor system deformations during the period of growth and development, Early intervention in special education and rehabilitation. in EARLY Intervention in Special Education and Rehabilitation : thematic collection of international importance
University of Belgrade – Faculty of Special Education and Rehabilitation Publishing Center of the Faculty., 77-100.
https://hdl.handle.net/21.15107/rcub_machinery_5840

Ilanković V, Dragičević A, Ilanković A, Kosić B, Ranković N. Early and continuous prevention of function disorders and locomotor system deformations during the period of growth and development, Early intervention in special education and rehabilitation. in EARLY Intervention in Special Education and Rehabilitation : thematic collection of international importance. 2016;:77-100.
https://hdl.handle.net/21.15107/rcub_machinery_5840 .

Ilanković, Vera, Dragičević, Aleksandra, Ilanković, Andrej, Kosić, Boris, Ranković, Novak, "Early and continuous prevention of function disorders and locomotor system deformations during the period of growth and development, Early intervention in special education and rehabilitation" in EARLY Intervention in Special Education and Rehabilitation : thematic collection of international importance (2016):77-100,
https://hdl.handle.net/21.15107/rcub_machinery_5840 .