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  - 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  - CONF
AU  - Stojićević, Miša
AU  - Jeli, Zorana
AU  - Popkonstantinovic, Branislav
AU  - Obradović, Miloš
AU  - Obradović, Ratko
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5798
AB  - This paper gives an insight into the design of concentrating solar power (CSP) systems. The basic
design of several types of CSP system is presented alongside their advantages and disadvantages. 
These advantages and disadvantages are based on their application and construction details and the 
paper shows how to select the most convenient CSP system. After presenting these types of CSP 
systems, an example of a new type of design is explained that presents a combination of several other 
solar concentrators.
PB  - SUGIG
C3  - 6th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art
T1  - Basic Geometry And Design Of Solar Concentrators
EP  - 488
SP  - 479
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5798
ER  - 

@conference{
author = "Stojićević, Miša and Jeli, Zorana and Popkonstantinovic, Branislav and Obradović, Miloš and Obradović, Ratko",
year = "2018",
abstract = "This paper gives an insight into the design of concentrating solar power (CSP) systems. The basic
design of several types of CSP system is presented alongside their advantages and disadvantages. 
These advantages and disadvantages are based on their application and construction details and the 
paper shows how to select the most convenient CSP system. After presenting these types of CSP 
systems, an example of a new type of design is explained that presents a combination of several other 
solar concentrators.",
publisher = "SUGIG",
journal = "6th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art",
title = "Basic Geometry And Design Of Solar Concentrators",
pages = "488-479",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5798"
}

Stojićević, M., Jeli, Z., Popkonstantinovic, B., Obradović, M.,& Obradović, R.. (2018). Basic Geometry And Design Of Solar Concentrators. in 6th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art
SUGIG., 479-488.
https://hdl.handle.net/21.15107/rcub_machinery_5798

Stojićević M, Jeli Z, Popkonstantinovic B, Obradović M, Obradović R. Basic Geometry And Design Of Solar Concentrators. in 6th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art. 2018;:479-488.
https://hdl.handle.net/21.15107/rcub_machinery_5798 .

Stojićević, Miša, Jeli, Zorana, Popkonstantinovic, Branislav, Obradović, Miloš, Obradović, Ratko, "Basic Geometry And Design Of Solar Concentrators" in 6th International Conference moNGeometrija, focused on the research about geometry, graphics and application to science, engineering and art (2018):479-488,
https://hdl.handle.net/21.15107/rcub_machinery_5798 .

TY  - CHAP
AU  - Jeli, Zorana
AU  - Popkonstantinović, Branislav
AU  - Stojicević, Miša
PY  - 2016
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5627
AB  - What is graphic communication? Firstly, it is a very effective way of communication
between the technical idea and the final solution of the problem in engineering. The
process engineering design (design) begins with visualization, i.e., reviewing the
problem and possible solutions. Then, sketching leads to the preparation of the initial
idea. Next step is preparation of geometric models, which are used for a variety of
engineering analysis and, finall¢ǰ creating detailed drawings and/or 3D models, which
are used for the production process. Visualization, sketching, modelling and prepara‐
tion of technical documentation are ways in which engineers and technologists
communicate in creating new products and structures in the modern technical world.
Essentially, graphic communication, which is done via engineering drawings and
models, is the clean, practical language with defined rules that need to be overcome if
one wants to be successful in engineering design (any kind of design). When that
language can overcome any approach to solving engineering problems. Ninety‐two
percent of the engineering design process is based on the graphic display. The remaining
8% is divided between the mathematical calculations and wriĴen and oral communi‐
cation. Fifty percent of the projecting time a designer spends on are purely visual and
graphic activities. We like precision in communication. Engineers use graphical tools,
some of which are centuries old and are used day‐to‐day, while others are very new and
conditioned by the rapid development of computer technology, such as Computer
Aided Design (CAD) systems. From this chapter, users will be able to familiarize
themselves with the above tools and principles of their use.
PB  - Intech
T2  - International Monograph “Virtual Learning”, Intec
T1  - Usage Of 3D Computer Modeling In Learning Engineering Graphics
IS  - 4
DO  - dx.doi.org/10.5772/65217
ER  - 

@inbook{
author = "Jeli, Zorana and Popkonstantinović, Branislav and Stojicević, Miša",
year = "2016",
abstract = "What is graphic communication? Firstly, it is a very effective way of communication
between the technical idea and the final solution of the problem in engineering. The
process engineering design (design) begins with visualization, i.e., reviewing the
problem and possible solutions. Then, sketching leads to the preparation of the initial
idea. Next step is preparation of geometric models, which are used for a variety of
engineering analysis and, finall¢ǰ creating detailed drawings and/or 3D models, which
are used for the production process. Visualization, sketching, modelling and prepara‐
tion of technical documentation are ways in which engineers and technologists
communicate in creating new products and structures in the modern technical world.
Essentially, graphic communication, which is done via engineering drawings and
models, is the clean, practical language with defined rules that need to be overcome if
one wants to be successful in engineering design (any kind of design). When that
language can overcome any approach to solving engineering problems. Ninety‐two
percent of the engineering design process is based on the graphic display. The remaining
8% is divided between the mathematical calculations and wriĴen and oral communi‐
cation. Fifty percent of the projecting time a designer spends on are purely visual and
graphic activities. We like precision in communication. Engineers use graphical tools,
some of which are centuries old and are used day‐to‐day, while others are very new and
conditioned by the rapid development of computer technology, such as Computer
Aided Design (CAD) systems. From this chapter, users will be able to familiarize
themselves with the above tools and principles of their use.",
publisher = "Intech",
journal = "International Monograph “Virtual Learning”, Intec",
booktitle = "Usage Of 3D Computer Modeling In Learning Engineering Graphics",
number = "4",
doi = "dx.doi.org/10.5772/65217"
}

Jeli, Z., Popkonstantinović, B.,& Stojicević, M.. (2016). Usage Of 3D Computer Modeling In Learning Engineering Graphics. in International Monograph “Virtual Learning”, Intec
Intech.(4).
https://doi.org/dx.doi.org/10.5772/65217

Jeli Z, Popkonstantinović B, Stojicević M. Usage Of 3D Computer Modeling In Learning Engineering Graphics. in International Monograph “Virtual Learning”, Intec. 2016;(4).
doi:dx.doi.org/10.5772/65217 .

Jeli, Zorana, Popkonstantinović, Branislav, Stojicević, Miša, "Usage Of 3D Computer Modeling In Learning Engineering Graphics" in International Monograph “Virtual Learning”, Intec, no. 4 (2016),
https://doi.org/dx.doi.org/10.5772/65217 . .