TY  - JOUR
AU  - Assenova, Emilia
AU  - Vencl, Aleksandar
PY  - 2022
UR  - https://www.tribomat.net/archive/2022/2022-01/TM-2022-01-05.pdf
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4285
AB  - The review summarises basic tribological concepts for the stability, sustainability and life of the contact systems, highlighting the idea that tribological processes are most easily manipulated through the contact and the third body. If the original contact pair does not possess a specially inserted intermediate layer between the two interacting bodies, a secondary protective film forms, self-organized in the course of the friction processes themselves to keep the sustainability of the system. The ambition of tribology is to control friction and wear of the contact: either to find the optimal material to be placed in contact, or to predict events and phenomena stimulating the emergence of its own protective layer. A short overview is done of the ways for obtaining very low friction and wear by applying the principles of self-organization and green tribology, such as the selective transfer of material between the contact surfaces and the superlubricity phenomena.
PB  - Balkan Scientific Centre
T2  - Tribology and Materials
T1  - Tribology and self-organization in reducing friction: A brief review
EP  - 41
IS  - 1
SP  - 35
VL  - 1
DO  - 10.46793/tribomat.2022.005
ER  - 

@article{
author = "Assenova, Emilia and Vencl, Aleksandar",
year = "2022",
abstract = "The review summarises basic tribological concepts for the stability, sustainability and life of the contact systems, highlighting the idea that tribological processes are most easily manipulated through the contact and the third body. If the original contact pair does not possess a specially inserted intermediate layer between the two interacting bodies, a secondary protective film forms, self-organized in the course of the friction processes themselves to keep the sustainability of the system. The ambition of tribology is to control friction and wear of the contact: either to find the optimal material to be placed in contact, or to predict events and phenomena stimulating the emergence of its own protective layer. A short overview is done of the ways for obtaining very low friction and wear by applying the principles of self-organization and green tribology, such as the selective transfer of material between the contact surfaces and the superlubricity phenomena.",
publisher = "Balkan Scientific Centre",
journal = "Tribology and Materials",
title = "Tribology and self-organization in reducing friction: A brief review",
pages = "41-35",
number = "1",
volume = "1",
doi = "10.46793/tribomat.2022.005"
}

Assenova, E.,& Vencl, A.. (2022). Tribology and self-organization in reducing friction: A brief review. in Tribology and Materials
Balkan Scientific Centre., 1(1), 35-41.
https://doi.org/10.46793/tribomat.2022.005

Assenova E, Vencl A. Tribology and self-organization in reducing friction: A brief review. in Tribology and Materials. 2022;1(1):35-41.
doi:10.46793/tribomat.2022.005 .

Assenova, Emilia, Vencl, Aleksandar, "Tribology and self-organization in reducing friction: A brief review" in Tribology and Materials, 1, no. 1 (2022):35-41,
https://doi.org/10.46793/tribomat.2022.005 . .

TY  - JOUR
AU  - Vaxevanidis, Nikolaos M.
AU  - Vencl, Aleksandar
AU  - Assenova, Emilia
AU  - Kandeva, Mara
AU  - Psyllaki, P.
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4316
AB  - In recent years there is an increasing number of articles presenting and/or analysing the scientific production from discrete geographical regions on a certain scientific topic. These articles applied the so-called bibliometric methods in order to evaluate the contribution of different countries in a scientific research field. In the present work, the research output of all countries in Southeastern Europe (SEE) on the scientific topic of thermal spray coatings is presented by using bibliometric indices such as the total number of publications and citations as well as the h-index and the average number of citations per publication. Analysis spans the last ten years and the required scientific data in order to calculate the bibliometric indices were retrieved using the Scopus® scientific database.
PB  - Sofia : Technical University
T2  - Tribological Journal BULTRIB
T1  - Scientific literature on thermal spray coatings from Southeastern Europe: A ten years bibliometric analysis
EP  - 121
SP  - 121
VL  - 7
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4316
ER  - 

@article{
author = "Vaxevanidis, Nikolaos M. and Vencl, Aleksandar and Assenova, Emilia and Kandeva, Mara and Psyllaki, P.",
year = "2018",
abstract = "In recent years there is an increasing number of articles presenting and/or analysing the scientific production from discrete geographical regions on a certain scientific topic. These articles applied the so-called bibliometric methods in order to evaluate the contribution of different countries in a scientific research field. In the present work, the research output of all countries in Southeastern Europe (SEE) on the scientific topic of thermal spray coatings is presented by using bibliometric indices such as the total number of publications and citations as well as the h-index and the average number of citations per publication. Analysis spans the last ten years and the required scientific data in order to calculate the bibliometric indices were retrieved using the Scopus® scientific database.",
publisher = "Sofia : Technical University",
journal = "Tribological Journal BULTRIB",
title = "Scientific literature on thermal spray coatings from Southeastern Europe: A ten years bibliometric analysis",
pages = "121-121",
volume = "7",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4316"
}

Vaxevanidis, N. M., Vencl, A., Assenova, E., Kandeva, M.,& Psyllaki, P.. (2018). Scientific literature on thermal spray coatings from Southeastern Europe: A ten years bibliometric analysis. in Tribological Journal BULTRIB
Sofia : Technical University., 7, 121-121.
https://hdl.handle.net/21.15107/rcub_machinery_4316

Vaxevanidis NM, Vencl A, Assenova E, Kandeva M, Psyllaki P. Scientific literature on thermal spray coatings from Southeastern Europe: A ten years bibliometric analysis. in Tribological Journal BULTRIB. 2018;7:121-121.
https://hdl.handle.net/21.15107/rcub_machinery_4316 .

Vaxevanidis, Nikolaos M., Vencl, Aleksandar, Assenova, Emilia, Kandeva, Mara, Psyllaki, P., "Scientific literature on thermal spray coatings from Southeastern Europe: A ten years bibliometric analysis" in Tribological Journal BULTRIB, 7 (2018):121-121,
https://hdl.handle.net/21.15107/rcub_machinery_4316 .

TY  - CONF
AU  - Kandeva, Mara
AU  - Ivanova, Boryana
AU  - Karastoyanov, Dimitar
AU  - Vencl, Aleksandar
AU  - Assenova, Emilia
PY  - 2015
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4337
AB  - Wear of moulded spheroidal graphite cast iron alloyed by Sn is studied under conditions of boundary lubrication. The lubricant contains a metal-plating additive “Valena”. Five types of moulded spheroidal graphite cast iron specimens are studied with various wt. % Sn: without Sn (0 wt. % Sn), as well as with 0.018, 0.020, 0.032 and 0.051 wt. % Sn. Three types of lubricants are applied: lithium grease NLGI 3, motor oil SAE 15W-40 and transmission oil SAE 80W-90, in cases without and with 0.5 wt. % content of “Valena” metal-plating additive. The study is carried-out under conditions of constant load, sliding distance and velocity, using the pin-on-disk tribometer. Results of the influence of Sn content on the specimens wear are obtained for the various lubricant media.
C3  - Proceedings of the 14th International Conference on Tribology – SERBIATRIB '15
T1  - Influence of the metal-plating additive “Valena” on wear of the spheroidal graphite cast iron microalloyed by Sn
EP  - 242
SP  - 236
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4337
ER  - 

@conference{
author = "Kandeva, Mara and Ivanova, Boryana and Karastoyanov, Dimitar and Vencl, Aleksandar and Assenova, Emilia",
year = "2015",
abstract = "Wear of moulded spheroidal graphite cast iron alloyed by Sn is studied under conditions of boundary lubrication. The lubricant contains a metal-plating additive “Valena”. Five types of moulded spheroidal graphite cast iron specimens are studied with various wt. % Sn: without Sn (0 wt. % Sn), as well as with 0.018, 0.020, 0.032 and 0.051 wt. % Sn. Three types of lubricants are applied: lithium grease NLGI 3, motor oil SAE 15W-40 and transmission oil SAE 80W-90, in cases without and with 0.5 wt. % content of “Valena” metal-plating additive. The study is carried-out under conditions of constant load, sliding distance and velocity, using the pin-on-disk tribometer. Results of the influence of Sn content on the specimens wear are obtained for the various lubricant media.",
journal = "Proceedings of the 14th International Conference on Tribology – SERBIATRIB '15",
title = "Influence of the metal-plating additive “Valena” on wear of the spheroidal graphite cast iron microalloyed by Sn",
pages = "242-236",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4337"
}

Kandeva, M., Ivanova, B., Karastoyanov, D., Vencl, A.,& Assenova, E.. (2015). Influence of the metal-plating additive “Valena” on wear of the spheroidal graphite cast iron microalloyed by Sn. in Proceedings of the 14th International Conference on Tribology – SERBIATRIB '15, 236-242.
https://hdl.handle.net/21.15107/rcub_machinery_4337

Kandeva M, Ivanova B, Karastoyanov D, Vencl A, Assenova E. Influence of the metal-plating additive “Valena” on wear of the spheroidal graphite cast iron microalloyed by Sn. in Proceedings of the 14th International Conference on Tribology – SERBIATRIB '15. 2015;:236-242.
https://hdl.handle.net/21.15107/rcub_machinery_4337 .

Kandeva, Mara, Ivanova, Boryana, Karastoyanov, Dimitar, Vencl, Aleksandar, Assenova, Emilia, "Influence of the metal-plating additive “Valena” on wear of the spheroidal graphite cast iron microalloyed by Sn" in Proceedings of the 14th International Conference on Tribology – SERBIATRIB '15 (2015):236-242,
https://hdl.handle.net/21.15107/rcub_machinery_4337 .

TY  - JOUR
AU  - Kandeva, Mara
AU  - Vencl, Aleksandar
AU  - Assenova, Emilia
PY  - 2014
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4310
AB  - The repair-regeneration oil additives are new generation additives with important place in the application of lubricants. Added to oils or greases they assure partial regeneration of worn surfaces and, at the same time, decrease the moment of friction and the coefficient of friction in the contact pairs of machines. Most common are the organic oil-soluble additives. The paper exposes results of the study of the oil-soluble metal-plating composite additive "Valena". The influence of this additive on the friction parameters of ball bearing lubricated by motor oil М-63/14 (SAE 15W-40, API SF/CC) and transmission oil ТМ-5-18 (SAE 80W-90, API GL-5) has been investigated.
PB  - Sofia : Technical University
T2  - Tribological Journal BULTRIB
T1  - Influence of "Valena" metal-plating additive on the friction properties of ball bearings
EP  - 24
SP  - 18
VL  - 4
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4310
ER  - 

@article{
author = "Kandeva, Mara and Vencl, Aleksandar and Assenova, Emilia",
year = "2014",
abstract = "The repair-regeneration oil additives are new generation additives with important place in the application of lubricants. Added to oils or greases they assure partial regeneration of worn surfaces and, at the same time, decrease the moment of friction and the coefficient of friction in the contact pairs of machines. Most common are the organic oil-soluble additives. The paper exposes results of the study of the oil-soluble metal-plating composite additive "Valena". The influence of this additive on the friction parameters of ball bearing lubricated by motor oil М-63/14 (SAE 15W-40, API SF/CC) and transmission oil ТМ-5-18 (SAE 80W-90, API GL-5) has been investigated.",
publisher = "Sofia : Technical University",
journal = "Tribological Journal BULTRIB",
title = "Influence of "Valena" metal-plating additive on the friction properties of ball bearings",
pages = "24-18",
volume = "4",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4310"
}

Kandeva, M., Vencl, A.,& Assenova, E.. (2014). Influence of "Valena" metal-plating additive on the friction properties of ball bearings. in Tribological Journal BULTRIB
Sofia : Technical University., 4, 18-24.
https://hdl.handle.net/21.15107/rcub_machinery_4310

Kandeva M, Vencl A, Assenova E. Influence of "Valena" metal-plating additive on the friction properties of ball bearings. in Tribological Journal BULTRIB. 2014;4:18-24.
https://hdl.handle.net/21.15107/rcub_machinery_4310 .

Kandeva, Mara, Vencl, Aleksandar, Assenova, Emilia, "Influence of "Valena" metal-plating additive on the friction properties of ball bearings" in Tribological Journal BULTRIB, 4 (2014):18-24,
https://hdl.handle.net/21.15107/rcub_machinery_4310 .

TY  - CONF
AU  - Kandeva, Mara
AU  - Ivanova, Boryana
AU  - Assenova, Emilia
AU  - Vencl, Aleksandar
PY  - 2014
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4340
AB  - Tribology has always been at center of the efforts to increase reliability and quality, to reduce maintenance costs and to extend the service life of technical systems. The continuous improvement and advance technology of machines necessitate higher quality of lubricants and lubrication technologies, which influences equipment life and environment protection. This paper seeks to bind down tribology, reliability, quality and safety in the application of lubricants with additives, aiming wear prevention, based on specific examples with one of the newest oil-soluble metal-plating composite additive called “Valena”.
C3  - Proceedings of the International Conference on Materials, Tribology, Recycling – MATRIB 2014
T1  - Influence of additives and selective transfer on wear reduction in the lubricated contact
EP  - 206
SP  - 197
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4340
ER  - 

@conference{
author = "Kandeva, Mara and Ivanova, Boryana and Assenova, Emilia and Vencl, Aleksandar",
year = "2014",
abstract = "Tribology has always been at center of the efforts to increase reliability and quality, to reduce maintenance costs and to extend the service life of technical systems. The continuous improvement and advance technology of machines necessitate higher quality of lubricants and lubrication technologies, which influences equipment life and environment protection. This paper seeks to bind down tribology, reliability, quality and safety in the application of lubricants with additives, aiming wear prevention, based on specific examples with one of the newest oil-soluble metal-plating composite additive called “Valena”.",
journal = "Proceedings of the International Conference on Materials, Tribology, Recycling – MATRIB 2014",
title = "Influence of additives and selective transfer on wear reduction in the lubricated contact",
pages = "206-197",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4340"
}

Kandeva, M., Ivanova, B., Assenova, E.,& Vencl, A.. (2014). Influence of additives and selective transfer on wear reduction in the lubricated contact. in Proceedings of the International Conference on Materials, Tribology, Recycling – MATRIB 2014, 197-206.
https://hdl.handle.net/21.15107/rcub_machinery_4340

Kandeva M, Ivanova B, Assenova E, Vencl A. Influence of additives and selective transfer on wear reduction in the lubricated contact. in Proceedings of the International Conference on Materials, Tribology, Recycling – MATRIB 2014. 2014;:197-206.
https://hdl.handle.net/21.15107/rcub_machinery_4340 .

Kandeva, Mara, Ivanova, Boryana, Assenova, Emilia, Vencl, Aleksandar, "Influence of additives and selective transfer on wear reduction in the lubricated contact" in Proceedings of the International Conference on Materials, Tribology, Recycling – MATRIB 2014 (2014):197-206,
https://hdl.handle.net/21.15107/rcub_machinery_4340 .

TY  - CONF
AU  - Kandeva, Aleksandar
AU  - Vencl, Aleksandar
AU  - Assenova, Emilia
AU  - Karastoyanov, Dimitar
AU  - Grozdanova, Tinka
PY  - 2014
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4347
AB  - Using the disk-abrasive roller test rig, wear behaviour of chemical Ni coatings containing boron nitride nanoparticles has been studied. The coatings were deposited by means of EFTOM-Ni technology method patented at the Technical University - Sofia. Comparative study has been done of wear resistance of the heat treated (heating during 6 h at 300˚C) and as deposited (no additional heat treatment) coatings, correspondingly with contents of particles of 10 μm averaged size and without nanoparticles addition.
C3  - Proceedings of the 11th International Conference in Manufacturing Engineering THE "A" Coatings
T1  - Abrasive wear of chemical nickel coatings with boron nitride nano-particles
EP  - 325
SP  - 319
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4347
ER  - 

@conference{
author = "Kandeva, Aleksandar and Vencl, Aleksandar and Assenova, Emilia and Karastoyanov, Dimitar and Grozdanova, Tinka",
year = "2014",
abstract = "Using the disk-abrasive roller test rig, wear behaviour of chemical Ni coatings containing boron nitride nanoparticles has been studied. The coatings were deposited by means of EFTOM-Ni technology method patented at the Technical University - Sofia. Comparative study has been done of wear resistance of the heat treated (heating during 6 h at 300˚C) and as deposited (no additional heat treatment) coatings, correspondingly with contents of particles of 10 μm averaged size and without nanoparticles addition.",
journal = "Proceedings of the 11th International Conference in Manufacturing Engineering THE "A" Coatings",
title = "Abrasive wear of chemical nickel coatings with boron nitride nano-particles",
pages = "325-319",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4347"
}

Kandeva, A., Vencl, A., Assenova, E., Karastoyanov, D.,& Grozdanova, T.. (2014). Abrasive wear of chemical nickel coatings with boron nitride nano-particles. in Proceedings of the 11th International Conference in Manufacturing Engineering THE "A" Coatings, 319-325.
https://hdl.handle.net/21.15107/rcub_machinery_4347

Kandeva A, Vencl A, Assenova E, Karastoyanov D, Grozdanova T. Abrasive wear of chemical nickel coatings with boron nitride nano-particles. in Proceedings of the 11th International Conference in Manufacturing Engineering THE "A" Coatings. 2014;:319-325.
https://hdl.handle.net/21.15107/rcub_machinery_4347 .

Kandeva, Aleksandar, Vencl, Aleksandar, Assenova, Emilia, Karastoyanov, Dimitar, Grozdanova, Tinka, "Abrasive wear of chemical nickel coatings with boron nitride nano-particles" in Proceedings of the 11th International Conference in Manufacturing Engineering THE "A" Coatings (2014):319-325,
https://hdl.handle.net/21.15107/rcub_machinery_4347 .

TY  - JOUR
AU  - Assenova, Emilia
AU  - Majstorović, Vidosav
AU  - Vencl, Aleksandar
AU  - Kandeva, M.
PY  - 2012
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4371
AB  - Every system is immersed in its surrounding. The changes in this interaction (contact) leading to degradation processes will affect the safety of the system. If the processes of changes are in a steady state, it can be considered that the system is safe. Sustainability includes the quality merits. Being the science and technology of the tribological aspects in the ecological balance and environmental impacts, Green tribology can be used with the purpose of saving of energy and materials, as well as of enhancement of the environment and the quality of life. Following the principles of green tribology, by identifying safety-related requirements early in the development of the system, special design and technologies can be used throughout the system life to conduct its safe development and evolution.
T2  - International Journal of Advanced Quality
T1  - Green tribology and quality of life
EP  - 32
IS  - 2
SP  - 26
VL  - 40
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4371
ER  - 

@article{
author = "Assenova, Emilia and Majstorović, Vidosav and Vencl, Aleksandar and Kandeva, M.",
year = "2012",
abstract = "Every system is immersed in its surrounding. The changes in this interaction (contact) leading to degradation processes will affect the safety of the system. If the processes of changes are in a steady state, it can be considered that the system is safe. Sustainability includes the quality merits. Being the science and technology of the tribological aspects in the ecological balance and environmental impacts, Green tribology can be used with the purpose of saving of energy and materials, as well as of enhancement of the environment and the quality of life. Following the principles of green tribology, by identifying safety-related requirements early in the development of the system, special design and technologies can be used throughout the system life to conduct its safe development and evolution.",
journal = "International Journal of Advanced Quality",
title = "Green tribology and quality of life",
pages = "32-26",
number = "2",
volume = "40",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4371"
}

Assenova, E., Majstorović, V., Vencl, A.,& Kandeva, M.. (2012). Green tribology and quality of life. in International Journal of Advanced Quality, 40(2), 26-32.
https://hdl.handle.net/21.15107/rcub_machinery_4371

Assenova E, Majstorović V, Vencl A, Kandeva M. Green tribology and quality of life. in International Journal of Advanced Quality. 2012;40(2):26-32.
https://hdl.handle.net/21.15107/rcub_machinery_4371 .

Assenova, Emilia, Majstorović, Vidosav, Vencl, Aleksandar, Kandeva, M., "Green tribology and quality of life" in International Journal of Advanced Quality, 40, no. 2 (2012):26-32,
https://hdl.handle.net/21.15107/rcub_machinery_4371 .