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Научни приноси на проф. доктор на науките Румен Цеков

Author ID (SCOPUS):7003536346

Researcher ID (Web of Science):L-9245-2019

ORCID ID:0000-0002-6340-3531
Дипломна работа
Р. Цеков, Брауново движение и стохастична теория на разредените газове, СУ, Ръководител:Б. Радоев 1988
Дисертация доктор на науките
Р. Цеков, Класическо и квантово Брауново движение, СУ 2021
Дисертация д-р
Р. Цеков, Флуктуационни явления върху флуидни повърхности, СУ, Ръководител:Б. Радоев 1993
Монография
Р. Цеков, Стохастична физикохимична динамика (Хабилитационен труд), София, Рецензирано 2011
Научен проект
1 R. Tsekov, Strong nanoparticle interactions in dense suspensions, Член, EU, Номер на договора:955612 2021
2 Р. Цеков, Национален център по мехатроника и чисти технологии, Член, МОН, Номер на договора:BG05M2OP001-1.001-0008-C02 2018
3 Р. Цеков, Постигане на оптимална среда за обучение, научни изследвания, иновации и устойчиво развитие на човешкия капитал в сферата на химическите науки: Адаптиране на образованието днес за утрешния ден, Член, МОН, Номер на договора:BG05M2OP001-2.009-0028 2017
4 Р. Цеков, Секция по химически науки, Хумболтов съюз в България, Ръководител, AvH 2017
5 R. Tsekov, Enhancing the scientific capacity of the Faculty of Chemistry and Pharmacy at Sofia University as leading regional research and innovation centre in the area of advanced functional materials , Ръководител, EU, Номер на договора:692146 2016
6 Р. Цеков, УНАЛ по физикохимия на кондензираната материя, Ръководител, СУ 2016
7 R. Tsekov, Brownian motion and resonant diffusion in complex polymer structures, Ръководител, BE 2015
8 Р. Цеков, Статични и динамични свойства на капилярен мост, Ръководител, СУ, Номер на договора:80/14 2014
9 Р. Цеков, Адсорбция на нейонни повърхностно-активни вещества върху течни повърхности, Ръководител, СУ, Номер на договора:87/12 2012
10 Р. Цеков, Катедра по физикохимия, Ръководител, СУ 2012
11 Р. Цеков, УНАЛ по функционални колоиди и повърхности, Член, СУ 2012
12 R. Tsekov, Development of the research potential of the Faculty of Chemistry, Sofia University, in the area of advanced functional materials for successful participation in world-class research at EU level, Ръководител, EU, Номер на договора:286205 2011
13 Р. Цеков, Електрични и електрохимични свойства на течните повърхности, Член, ФНИ, Номер на договора:ДДВУ 02/12 2011
14 Р. Цеков, Йонно-специфични ефекти върху сърфактанти и протеини, пенна и емулсионна стабилност, Член, ФНИ, Номер на договора:ДДВУ 02/54 2011
15 Р. Цеков, Нано-флуидика на тънки течни филми върху химически и морфологично модифицирани повърхности, Член, СУ, Номер на договора:178/11 2011
16 Р. Цеков, Научно-изследователска група по нанофлуидика и квантова хидродинамика, Ръководител, BE 2011
17 Р. Цеков, Професор по физикохимия, Ръководител, СУ 2011
18 Р. Цеков, Клъстер по нанофлуидика и метаповърхности, Ръководител, СУ 2010
19 Р. Цеков, Нано-флуидна динамика на суспензии от квантови нано-частици в химично-модифицирани канали, Ръководител, ФНИ, Номер на договора:ДРГ 02/3 2010
20 R. Tsekov, Evaluation of the research quality and capability of the Faculty of Chemistry, Sofia University, and defining of an action plan, Член, EU, Номер на договора:FP7 229779 2009
21 Р. Цеков, Магистратура по колоидни системи в съвременните наука и технологии, Ръководител, СУ 2009
22 Р. Цеков, Направление по химична физика и теоретична химия за бакалаври, Ръководител, СУ 2009
23 Р. Цеков, УНАЛ по физикохимия на повърхностите и дисперсните системи, Ръководител, СУ 2009
24 Р. Цеков, Факултетски дискусионен семинар "Наука за повърхностите", Ръководител, СУ 2009
25 R. Tsekov, Mineral processing in flotation, Член, UQ 2007
26 R. Tsekov, Nano- and micro-fluidics: Bridging the gap between molecular motion and continuum flow, Член, DFG, Номер на договора:SPP 1164 2007
27 R. Tsekov, Financial analysis and risk management, Член, DVAG 2006
28 R. Tsekov, Multi-purpose surface state analyzer Bioreflectometer BlueSky RM-8000, Член, AIST 2005
29 R. Tsekov, Structure and dynamics of fluid interfaces of ionic liquids, Член, DFG , Номер на договора:FR 299 2005
30 R. Tsekov, Mercator Professor, Ръководител, DFG 2004
31 R. Tsekov, Localization of electrons and dynamics in mesoscopic fluid wetting films, Член, DFG, Номер на договора:SFB 195 2002
32 Р. Цеков, Доцент по физикохимия, Ръководител, СУ 2002
33 R. Tsekov, Drainage in wetting films: dimpling, thinning and oscillations, Ръководител, AvH 2001
34 R. Tsekov, Координатор на проект по Humboldt South Eastern Europe Program, Ръководител, AvH 2001
35 R. Tsekov, Novel photo-catalysts and processes for CWA degradation, Ръководител, NATO, Номер на договора:SfP 974209 2000
36 R. Tsekov, Theoretical study of the interaction of liposomes based on film models, Ръководител, JITA 2000
37 Р. Цеков, Координатор на FP5 Program за СУ "Св. Климент Охридски", Член, EU 2000
38 R. Tsekov, Dynamics and stability of wetting films on solid surfaces, Ръководител, AvH 1999
39 R. Tsekov, Particle interaction in mechanical process engineering, Член, DFG, Номер на договора:SFB 285 1999
40 R. Tsekov, Resonant diffusion and transformations of small molecules in zeolites , Ръководител, NRC 1998
41 R. Tsekov, Dynamic stability and dissipative structures in thin liquid films, Ръководител, AvH 1997
42 R. Tsekov, Deutsche Sprache in Goethe Institut, Goettingen, Член, GI 1996
43 Р. Цеков, Главен асистент по физикохимия, Ръководител, СУ 1995
44 Р. Цеков, Динамични свойства на течните повърхности, Член, ФНИ, Номер на договора:X 508 1995
45 Р. Цеков, Структура на адсорбционните слоеве върху течни повърхности, Член, СУ, Номер на договора:191/95 1995
46 Р. Цеков, Браунова динамика и резонантна дифузия в твърди тела, Ръководител, ФНИ, Номер на договора:MUIS 2 1994
47 R. Tsekov, Chemical engineering of colloids and interfaces, Член, NSF 1993
48 R. Tsekov, Marquis Who's Who, Член, MWW 1993
49 Р. Цеков, Грант от Фондация "Еврика" за пътуване до САЩ, Ръководител, ФЕ 1993
50 Р. Цеков, Ефект на вибрациите върху скоростта на химичните трансформации на адсорбирани молекули, Член, ФНИ, Номер на договора:X 215 1992
51 Р. Цеков, Флуктуационни вискоеластични структури върху флуидни повърхности , Член, ФНИ, Номер на договора:X 265 1992
52 Р. Цеков, Старши асистент по физикохимия, Ръководител, СУ 1991
53 Р. Цеков, Статични и динамични взаимодействия върху повърхности и в дисперсни системи, Член, ФНИ, Номер на договора:X 68 1990
54 Р. Цеков, Английски език, Член, ИЧС 1989
55 Р. Цеков, Асистент по физикохимия, Ръководител, СУ 1988
56 Р. Цеков, Производствена практика в Гърция, Член, СУ 1986
57 Р. Цеков, Научно-изследователска практика в Украйна, Член, СУ 1985
58 Р. Цеков, Студент по химична физика и теоретична химия, Ръководител, СУ 1983
Научно ръководство
1 Р. Цеков, Взаимодействие на прости йони във водни разтвори с течни междуфазови граници: адсорбция и електрични свойства, СУ дисертация д-р:Т. Пешкова 2016
2 Р. Цеков, Устойчивост на пенни филми и мембранни ламеларни структури, СУ дипломна работа:Н. Иванова 2014
3 Р. Цеков, Кинетика на изтъняване на тънки течни филми от водни разтвори на йонни течности, СУ дипломна работа:Р. Кирилова 2012
4 Р. Цеков, Кинетика на изтъняване на тънки течни филми от водни разтвори на неорганични соли, СУ дипломна работа:Р. Кирилова 2010
5 R. Tsekov, Wetting of Micro- and Nano-Structured Hydrophobic Surfaces, RWTH Aachen дипломна работа:F. Menges 2008
6 R. Tsekov, 2D Phase Formation and Transitions at Electrified Liquid / Solid Interfaces: in-situ STM and Monte Carlo Investigations, TU Karlsruhe дисертация д-р:D. Borissov 2005
7 R. Tsekov, Electrochemical SPM Study of 2D and 3D Phase Formation of Zn at the Ionic Liquid / Au(111) Interface, TU Karlsruhe дисертация д-р:J. Dogel 2004
8 R. Tsekov, Spectroscopic Ellipsometry of Interfacial Phase Transitions in Fluid Metallic Systems: KxKCl1-x and Ga1-xBix, TU Karlsruhe дисертация д-р:S. Dogel 2004
9 R. Tsekov, Wetting, Prewetting and Surface Freezing Transitions in Fluid Ga-Bi and Ga-Pb Alloys: A Surface Light Scattering Study , TU Karlsruhe дисертация д-р:A. Ayyad 2002
10 Р. Цеков, Релаксация на димпъл в тънки течни филми върху подложка, СУ дипломна работа:Е. Евстатиева 2002
11 R. Tsekov, Photocatalytic Degradation of Organic Compounds, University of Cincinnati дисертация д-р:L. Davydov 2001
12 R. Tsekov, Eine neue Methode zur Untersuchung von Oberflächenwellen in wäßrigen Benetzungsfilmen, TU Freiberg дисертация д-р:P. Letocart 1999
13 Р. Цеков, Дифузионни и химореакционни аспекти на специфична каталитична реакция в едномерни зеолити, СУ дипломна работа:А. Донев 1999
14 Р. Цеков, Време на живот на стационарни тънки течни филми, СУ дипломна работа:П. Чолева 1997
15 Р. Цеков, Резонантна дифузия в модулирани структури, СУ дипломна работа:С. Антипешев 1996
Редактор на издание нереферирано
1 R. Tsekov, Sci Profiles, Редактор на издание нереферирано 2023
2 R. Tsekov, Semantic Scholar, Редактор на издание нереферирано 2021
3 R. Tsekov, Zenodo, Редактор на издание нереферирано 2020
4 R. Tsekov, Google Scholar, Редактор на издание нереферирано 2019
5 R. Tsekov, Web of Science, Редактор на издание нереферирано 2019
6 R. Tsekov, Preprints, Редактор на издание нереферирано 2018
7 R. Tsekov, Open Researcher and Contributor ID, Редактор на издание нереферирано 2015
8 R. Tsekov, Research Gate, Редактор на издание нереферирано 2011
9 R. Tsekov, Scopus, Редактор на издание нереферирано 2009
10 R. Tsekov, SAO/NASA Astrophysics Data System, Редактор на издание нереферирано 2008
11 R. Tsekov, Cornell University arXiv, Редактор на издание нереферирано 2007
Статия в научно списание
1 N. Danchova, R. Tsekov, D. Shandurkov, S. Gutzov, L. Lyubeova, L. Mihaylov, T. Spassov, Silica gels doped with gold nanoparticles and gold thiolate complexes: The effect of heating and preparation conditions, J. Non-Cryst. Solids, vol:648, 2025, pages:123308-0, Ref, Web of Science, PhD 2025
2 R. Tsekov, A new pilot wave reinterpretation for quantum AI systems, JMN, vol:3, 2024, pages:242-245, Ref 2024
3 R. Tsekov, Just 131 angels can dance on the head of a pin!, Zenodo, 2024, pages:10991490-0 2024
4 R. Tsekov, The hot end of political parties, Zenodo, 2024, pages:14050294-0 2024
5 R. Tsekov, Advanced thermostats for molecular dynamics, C. R. Acad. Bulg. Sci., vol:76, 2023, pages:1343-1349, Ref, Web of Science 2023
6 D. Shandurkov, N. Danchova, T. Spassov, V. Petrov, R. Tsekov, S. Gutzov, Silica gels doped with gold nanoparticles: Preparation, structure and optical properties, Gels, vol:9, 2023, pages:663-0, Ref, Web of Science, PhD 2023
7 R. Tsekov, Social thermodynamics 2.0, arXiv, vol:2307.05984, 2023 2023
8 R. Tsekov, Dark energy is dark matter below absolute zero in black holes, C. R. Acad. Bulg. Sci., vol:75, 2022, pages:504-509, Ref, Web of Science 2022
9 R. Tsekov, Quantum entanglement of free particles, Fluct. Noise Lett., vol:21, 2022, pages:2250024-0, Ref, Web of Science 2022
10 K. Harrass, S. Mauer, R. Tsekov, Resistance of glass fiber reinforced polyamide 6.6 materials to automotive cooling fluids: An analytical method for lifetime prediction, Polym. Int., vol:71, 2022, pages:724-733, Ref, Web of Science, International, MSc 2022
11 R. Tsekov, A nonlinear master equation for open quantum systems, Fluct. Noise Lett., vol:20, 2021, pages:2130004-0, Ref, Web of Science 2021
12 R. Tsekov, Classical and quantum Brownian motion, arXiv, vol:2105.05646, 2021 2021
13 R. Tsekov, From pandemic to apocalypse, Biomed. J. Sci. Tech. Res., vol:39, 2021, pages:31132-31133, Ref 2021
14 R. Tsekov, How Schrödinger's equation emerges from force carriers, Fluct. Noise Lett., vol:20, 2021, pages:2150009-0, Ref, Web of Science 2021
15 R. Tsekov, Brownian motion and quantum mechanics, Fluct. Noise Lett., vol:19, 2020, pages:2050017-0, Ref, Web of Science 2020
16 P. Georgiev, S. Simeonova, R. Tsekov, K. Balashev, Dependence of plasmon spectra of small gold nanoparticles from their size: an atomic force microscopy experimental approach, Plasmonics , vol:15, 2020, pages:371-377, Ref, Web of Science, IF (2.726 - 2021), Web of Science Quartile: Q2 (), SCOPUS, SJR (0.526 - 2021), SCOPUS Quartile: Q2 (2020) 2020
17 R. Tsekov, From black holes to neutrino stars, Ann. Univ. Sofia, Fac. Phys., vol:112, 2020 2020
18 R. Tsekov, Nonuniform slip effect in wetting films, Coatings, vol:10, 2020, pages:597-602, Ref, Web of Science 2020
19 R. Tsekov, E. Heifetz, E. Cohen, A hydrodynamic interpretation of quantum mechanics via turbulence, C. R. Acad. Bulg. Sci., vol:72, 2019, pages:448-454, Ref, Web of Science, International 2019
20 R. Tsekov, Quantum black holes and atomic nuclei are hollow, New Adv. Phys., vol:13, 2019, pages:1-12 2019
21 R. Tsekov, Relaxation in quantum systems, C. R. Acad. Bulg. Sci., vol:72, 2019, pages:62-69, Ref, Web of Science 2019
22 R. Tsekov, T. Spassov, Universality in glass transitions, C. R. Acad. Bulg. Sci., vol:72, 2019, pages:1650-1653, Ref, Web of Science 2019
23 R. Tsekov, Brownian motion of a classical particle in quantum environment, Phys. Lett. A, vol:382, 2018, pages:2230-2232, Ref, Web of Science 2018
24 S.I. Karakashev, K.W. Stöckelhuber, R. Tsekov, N. Grozev, S. Simeonova, N. Raykundaliya, G. Heinrich, Bubble rubbing on hydrophobic solid surfaces, Colloids Surf. A, vol:555, 2018, pages:638-645, ISBN:09277757, doi:10.1016/j.colsurfa.2018.07.037, Ref, Web of Science, IF (5.29 - 2022), Web of Science Quartile: Q1 (2018), SCOPUS, SJR (0.758 - 2022), SCOPUS Quartile: Q1 (2018), International 2018
25 R. Tsekov, E. Heifetz, E. Cohen, Relating quantum mechanics with hydrodynamic turbulence, EPL, vol:122, 2018, pages:40002-0, Ref, Web of Science, International 2018
26 R. Tsekov, The fourth state of matter, Chemistry, vol:27, 2018, pages:771-776, Ref, Web of Science 2018
27 R. Tsekov, Boson/fermion Janus particles, Chemistry, vol:26, 2017, pages:233-240, Ref, Web of Science 2017
28 R. Tsekov, E. Heifetz, E. Cohen, Derivation of the local-mean stochastic quantum force, Fluct. Noise Lett., vol:16, 2017, pages:1750028-0, Ref, Web of Science, International 2017
29 R. Tsekov, On the stochastic origin of quantum mechanics, Rep. Adv. Phys. Sci., vol:1, 2017, pages:1750008-0, Ref, Web of Science 2017
30 R. Tsekov, P. Georgiev, S. Simeonova, K. Balashev, Quantifying the blue shift in the light adsorption of small gold nanoparticles, C. R. Acad. Bulg. Sci., vol:70, 2017, pages:1237-1246, Ref, Web of Science 2017
31 T.V. Peshkova, I.L. Minkov, R. Tsekov, R.I. Slavchov, Adsorption of ions at uncharged insoluble monolayers, Langmuir, vol:32, 2016, pages:8858-8871, Ref, Web of Science, International, PhD 2016
32 R. Tsekov, Brownian emitters, Fluct. Noise Lett., issue:15, 2016, pages:1650022-0, Ref, Web of Science 2016
33 E. Heifetz, R. Tsekov, E. Cohen, Z. Nussinov, On entropy production in the Madelung fluid and the role of Bohm's potential in classical diffusion, Found. Phys., vol:46, 2016, pages:815-824, Ref, Web of Science, International 2016
34 R. Tsekov, E. Heifetz, Quantifying some properties of the stochastic quantum force, arXiv, vol:1607.02845, 2016, International 2016
35 R. Tsekov, Golden ratio autocorrelation function and the exponential decay, Fluct. Noise Lett., vol:14, 2015, pages:1550013-0, Ref, Web of Science 2015
36 R. Tsekov, Hard spheres model of the atom, Chemistry, vol:24, 2015, pages:818-824, Ref, Web of Science 2015
37 R. Tsekov, How social thermodynamics could help Greece, ResearchGate, vol:279746509, 2015 2015
38 N.G. Ivanova, R. Tsekov, Parallel stability analysis of membrane lamellar structures and foam films, Chemistry, vol:24, 2015, pages:877-890, Ref, Web of Science, PhD 2015
39 R. Tsekov, A novel protocol for linearization of the Poisson-Boltzmann equation, Ann. Univ. Sofia, Fac. Chem. Pharm., vol:106, 2014, pages:59-64, Ref 2014
40 R. Tsekov, Complex quantum hydrodynamics with teleportation, New Adv. Phys., vol:8, 2014, pages:111-121, Ref 2014
41 R. Tsekov, Structure and phase transitions into ionic adsorption layers on liquid interfaces, Ann. Univ. Sofia, Fac. Chem. Pharm., vol:106, 2014, pages:65-71, Ref 2014
42 S.I. Karakashev, K.W. Stöckelhuber, R. Tsekov, C.M. Phan, G. Heinrich, Tribology of thin wetting films between bubble and moving solid surface, Adv. Colloid Interface Sci. , vol:210, 2014, pages:39-46, Ref, Web of Science, International 2014
43 R. Tsekov, Brownian markets, Chin. Phys. Lett., vol:30, 2013, pages:88901-0, Ref, Web of Science 2013
44 R. Tsekov, M.C. Lensen, Brownian motion and the temperament of living cells, Chin. Phys. Lett., vol:30, 2013, pages:70501-0, Ref, Web of Science, International 2013
45 S.I. Karakashev, K.W. Stöckelhuber, R. Tsekov, G. Heinrich, Bubble rubbing on solid surfaces: an experimental study, J. Colloid Interface Sci., vol:412, 2013, pages:89-94, Ref, Web of Science, International 2013
46 N.G. Ivanova, R. Tsekov, Comparison of thermal fluctuations in foam films and bilayer structures, Ann. Univ. Sofia, Fac. Chem., vol:104/105, 2013, pages:93-107, Ref, MSc 2013
47 S.I. Karakashev, A.V. Nguyen, R. Tsekov, Effect of the adsorption component of the disjoining pressure on foam film drainage, Colloid J., vol:75, 2013, pages:176-180, Ref, Web of Science, International 2013
48 R. Tsekov, D. Borissov, S.I. Karakashev, Wetting dynamics on lyophilic solid surfaces patterned by lyophobic islands, Colloids Surf. A , vol:423, 2013, pages:77-80, Ref, Web of Science, International 2013
49 R. Tsekov, G.N. Vayssilov, Bayesian approach to electron correlation in density functional theory, Ann. Phys. (Berlin), vol:524, 2012, pages:822-825, Ref, Web of Science 2012
50 R. Tsekov, Bohmian mechanics versus Madelung quantum hydrodynamics, Ann. Univ. Sofia, Fac. Phys., vol:SE, 2012, pages:112-119, Ref 2012
51 R. Tsekov, B.V. Toshev, Capillary pressure of van der Waals liquid nanodrops, Colloid J., vol:74, 2012, pages:266-268, Ref, Web of Science 2012
52 R. Tsekov, N.A. Grozev, I.V. Delcheva, I.T. Ivanov, K. Balashev, S.I. Karakashev, Delta-comb potential in modeling three-phase contact line (TPCL) on periodically patterned surfaces, J. Phys. Chem. B , vol:116, 2012, pages:13248-13253, Ref, Web of Science, MSc 2012
53 O.I. Vinogradova, L. Bocquet, A.N. Bogdanov, R. Tsekov, V. Lobaskin, Electrostatic interaction of neutral semi-permeable membranes, J. Chem. Phys., vol:136, 2012, pages:34902-0, Ref, Web of Science, International 2012
54 R. Tsekov, Nonlinear friction in quantum mechanics, Ann. Univ. Sofia, Fac. Phys., vol:105, 2012, pages:14-21, Ref 2012
55 R. Tsekov, Quantum Einstein's Brownian motion, Ann. Univ. Sofia, Fac. Phys., vol:SE, 2012, pages:103-111, Ref 2012
56 R. Tsekov, Quantum friction, Chin. Phys. Lett., vol:29, 2012, pages:120504-0, Ref, Web of Science 2012
57 R. Tsekov, Relativistic quantum Brownian motion, Ann. Univ. Sofia, Fac. Phys., vol:105, 2012, pages:22-29, Ref 2012
58 R. Tsekov, Adsorption component of the disjoining pressure in thin liquid films, Ann. Univ. Sofia, Fac. Chem., vol:102/103, 2011, pages:273-278, Ref 2011
59 S.I. Karakashev, D.S. Ivanova, E.D. Manev, R. Kirilova, R. Tsekov, An experimental test of the fractal model for drainage of foam films, J. Colloid Interface Sci., vol:353, 2011, pages:206-209, Ref, Web of Science, PhD, MSc 2011
60 R. Tsekov, Electric double layer in concentrated solutions of ionic surfactants, Ann. Univ. Sofia, Fac. Chem., vol:102/103, 2011, pages:177-183, Ref 2011
61 S.I. Karakashev, R. Tsekov, Electro-Marangoni effect in thin liquid films, Langmuir, vol:27, 2011, pages:2265-2270, Ref, Web of Science 2011
62 R. Tsekov, Ermakov equations in quantum mechanics, Ann. Univ. Sofia, Fac. Chem., vol:102/103, 2011, pages:185-188, Ref 2011
63 R. Tsekov, Flocculation of vesicles, Ann. Univ. Sofia, Fac. Chem., vol:102/103, 2011, pages:253-258, Ref 2011
64 R. Tsekov, Quantum diffusion, Phys. Scr., vol:83, 2011, pages:35004-0, Ref, Web of Science 2011
65 S.I. Karakashev, N. Grozev, I. Diez, R.H.A. Ras, R. Tsekov, Rheology of silver nano-cluster solutions under confinement, Colloids Surf. A, vol:384, 2011, pages:570-573, Ref, Web of Science, International 2011
66 R. Tsekov, Thermo-quantum diffusion in periodic potentials, Ann. Univ. Sofia, Fac. Chem., vol:102/103, 2011, pages:247-251, Ref 2011
67 S.I. Karakashev, K.W. Stöckelhuber, R. Tsekov, Wetting films on chemically patterned surfaces, J. Colloid Interface Sci., vol:363, 2011, pages:663-667, Ref, Web of Science, International 2011
68 R. Tsekov, D.S. Ivanova, R. Slavchov, B. Radoev, E.D. Manev, A.V. Nguyen, S.I. Karakashev, A new model for the kinetics of drainage of thin liquid films with ionic surfactants, Ann. Univ. Shumen, Fac. Chem., vol:20, 2010, pages:109-117, Ref, International, PhD 2010
69 S.I. Karakashev, D.S. Ivanova, Z.K. Angarska, E.D. Manev, R. Tsekov, B. Radoev, R. Slavchov, A.V. Nguyen, Comparative validation of the analytical models for the Marangoni effect on foam film drainage, Colloids Surf. A, vol:365, 2010, pages:122-136, Ref, Web of Science, PhD 2010
70 S.I. Karakashev, R. Tsekov, D.S. Ivanova, Dynamic effects in thin liquid films containing ionic surfactants, Colloids Surf. A, vol:356, 2010, pages:40-45, Ref, Web of Science, PhD 2010
71 S.I. Karakashev, R. Tsekov, E.D. Manev, A.V. Nguyen, Elasticity of foam bubbles measured by profile analysis tensiometry, Colloids Surf. A, vol:369, 2010, pages:136-140, Ref, Web of Science, International 2010
72 R. Slavchov, R. Tsekov, Quantum hydrodynamics of electron gases, J. Chem. Phys., vol:132, 2010, pages:84505-0, Ref, Web of Science 2010
73 S.I. Karakashev, R. Tsekov, E.D. Manev, A.V. Nguyen, Soap bubble elasticity: analysis and correlation with foam stability, Ann. Univ. Plovdiv, Fac. Chem., vol:37, 2010, pages:109-116, Ref, International 2010
74 R. Tsekov, D.S. Ivanova, R. Slavchov, B. Radoev, E.D. Manev, A.V. Nguyen, S.I. Karakashev, Streaming potential effect on the drainage of thin liquid films stabilized by ionic surfactants, Langmuir, vol:26, 2010, pages:4703-4708, Ref, Web of Science, International, PhD 2010
75 R. Tsekov, Dissipative and quantum mechanics, New Adv. Phys, vol:3, 2009, pages:35-44, Ref 2009
76 R. Tsekov, Dissipative time dependent density functional theory, Int. J. Theor. Phys., vol:48, 2009, pages:2660-2664, Ref, Web of Science 2009
77 R. Tsekov, Nonlinear theory of quantum Brownian motion, Int. J. Theor. Phys., vol:48, 2009, pages:85-94, Ref, Web of Science 2009
78 R. Tsekov, Thermo-quantum diffusion, Int. J. Theor. Phys., vol:48, 2009, pages:630-636, Ref, Web of Science 2009
79 R. Tsekov, Towards nonlinear quantum Fokker-Planck equations, Int. J. Theor. Phys., vol:48, 2009, pages:1431-1435, Ref, Web of Science 2009
80 E.D. Manev, S.V. Sazdanova, R. Tsekov, S.I. Karakashev, A.V. Nguyen, Adsorption of ionic surfactants, Colloids Surf. A, vol:319, 2008, pages:29-33, Ref, Web of Science, International 2008
81 S.I. Karakashev, P.T. Nguyen, R. Tsekov, M.A. Hampton, A.V. Nguyen, Anomalous ion effects on rupture and lifetime of aqueous foam films from monovalent salt solutions up to saturation concentration, Langmuir, vol:24, 2008, pages:11587-11591, Ref, Web of Science, International 2008
82 R. Tsekov, Comment on 'Transient response of a wetting film to mechanical and electrical perturbations', arXiv, vol:0807.4629, 2008 2008
83 S.I. Karakashev, E.D. Manev, R. Tsekov, A.V. Nguyen, Effect of ionic surfactants on drainage and equilibrium thickness of emulsion films, J. Colloid Interface Sci., vol:318, 2008, pages:358-364, Ref, Web of Science, International 2008
84 R. Tsekov, M.R. Stukan, O.I. Vinogradova, Osmotic pressure acting on a semi-permeable shell immersed in a solution of polyions, J. Chem. Phys., vol:129, 2008, pages:244707-0, Ref, Web of Science, International 2008
85 V.S. Ajaev, R. Tsekov, O.I. Vinogradova, Ripples in a wetting film formed by a moving meniscus, Phys. Rev. E, vol:78, 2008, pages:31602-0, Ref, Web of Science, International 2008
86 R. Tsekov, Comment on 'Semiclassical Klein–Kramers and Smoluchowski equations for the Brownian motion of a particle in an external potential', J. Phys. A Math. Theor., vol:40, 2007, pages:10945-10947, Ref, Web of Science 2007
87 B.S. Kim, V. Lobaskin, R. Tsekov, O.I. Vinogradova, Dynamics and stability of dispersions of polyelectrolyte-filled multilayer microcapsules, J. Chem. Phys., vol:126, 2007, pages:244901-0, Ref, Web of Science, International 2007
88 R. Tsekov, O.I. Vinogradova, Electro-osmotic equilibrium for a semi-permeable shell filled with a solution of polyions, J. Chem. Phys., vol:126, 2007, pages:94901-0, Ref, Web of Science, International 2007
89 R. Tsekov, Ferroelectric phase transitions near ionic liquid/vacuum interfaces, J. Chem. Phys., vol:126, 2007, pages:191110-0, Ref, Web of Science 2007
90 V. Halka, R. Tsekov, I. Mechdiev, W. Freyland, Order-disorder transition at the liquid/vapor interface of imidazolium based ionic liquids: a surface light scattering study, Z. Phys. Chem., vol:221, 2007, pages:549-558, Ref, Web of Science, International 2007
91 V.S. Ajaev, R. Tsekov, O.I. Vinogradova, The wimple: a rippled deformation of a wetting film during its drainage, Phys. Fluids, vol:19, 2007, pages:61702-0, Ref, Web of Science, International 2007
92 D. Borissov, R. Tsekov, W. Freyland, Pulsed electrodeposition of two-dimensional Ag nanostructures on nanostructures on Au (111), J. Phys. Chem. B, vol:110, 2006, pages:15905-15911, Ref, Web of Science, International 2006
93 R. Tsekov, O.I. Vinogradova, A qualitative theory of wimples in wetting films, Langmuir, vol:21, 2005, pages:12090-12092, Ref, Web of Science, International 2005
94 A. Turchanin, R. Tsekov, W. Freyland, Effect of vertical temperature variation on the oscillatory wetting instability in a fluid Ga-Pb alloy, Phys. Chem. Chem. Phys., vol:7, 2005, pages:4146-4149, Ref, Web of Science, International 2005
95 V. Halka, R. Tsekov, W. Freyland, Interfacial phase transitions in imidazolium-based ionic liquids, J. Phys. Condens. Matter, vol:17, 2005, pages:3325-3331, Ref, Web of Science, International 2005
96 S. Dogel, R. Tsekov, W. Freyland, Oscillatory interfacial instabilities in binary metallic fluids, J. Phys. Condens. Matter, vol:17, 2005, pages:3289-3299, Ref, Web of Science, International 2005
97 V. Halka, R. Tsekov, W. Freyland, Peculiarity of the liquid/vapor interface of an ionic liquid: study of surface tension and viscoelasticity of liquid BMImPF6, Phys. Chem. Chem. Phys., vol:7, 2005, pages:2038-2043, Ref, Web of Science, International 2005
98 R. Tsekov, E. Evstatieva, Resonant diffusion on modulated surfaces, Adv. Colloid Intreface Sci., vol:114-115, 2005, pages:159-164, Ref, Web of Science 2005
99 J. Dogel, R. Tsekov, W. Freyland, Two-dimensional connective nanostructures of electrodeposited Zn on Au (111) induced by spinodal decomposition, J. Chem. Phys., vol:122, 2005, pages:94703-0, Ref, Web of Science, International 2005
100 A. Turchanin, R. Tsekov, W. Freyland, Oscillatory wetting instability during liquid-liquid decomposition in Ga-Pb alloys, J. Chem. Phys., vol:120, 2004, pages:11171-0, Ref, Web of Science, International 2004
101 K. Yoo, R. Tsekov, P.G. Smirniotis, Experimental proof for resonant diffusion of normal alkanes in LTL and ZSM-12 zeolites, J. Phys. Chem. B, vol:107, 2003, pages:13593-13596, Ref, Web of Science, International 2003
102 R. Tsekov, W. Freyland, Model calculations of surface phase-transitions in Ga-Bi alloys: adsorption, wetting, surface freezing and melting, J. Phys. Condens. Matter, vol:15, 2003, pages:6155-6165, Ref, Web of Science, International 2003
103 S.I. Karakashev, R. Tsekov, E.D. Manev, A new model for adsorption behavior of ionic surfactants on air/water surface, Ann. Univ. Shumen, Fac. Chem., vol:7, 2002, pages:146-156, Ref 2002
104 R. Tsekov, A quantum theory of thermo-chemical relaxation, Ann. Univ. Sofia, Fac. Chem., vol:95, 2002, pages:59-64, Ref 2002
105 R. Tsekov, P. Letocart, E. Evstatieva, H.J. Schulze, Effect of ionic surfactants on the dimple relaxation in wetting films, Langmuir, vol:18, 2002, pages:5799-5803, Ref, Web of Science, International 2002
106 R. Tsekov, E. Evstatieva, P.G. Smirniotis, Surface diffusion control of the photocatalytic oxidation in air/TiO2 heterogeneous reactors, Phys. Chem. Comm., vol:5, 2002, pages:161-164, Ref, Web of Science, International 2002
107 R. Tsekov, A quantum theory of thermodynamic relaxation, Int. J. Mol. Sci., vol:2, 2001, pages:66-71, Ref, Web of Science 2001
108 S.I. Karakashev, R. Tsekov, E. Manev, Adsorption of alkali dodecyl sulfates on air/water surface, Langmuir, vol:17, 2001, pages:5403-5405, Ref, Web of Science 2001
109 R. Tsekov, H. Matsumura, K. Kawasaki, M. Kambara, Effects of dissipation on contact angle measurements using a dynamic method, J. Colloid Interface Sci., vol:233, 2001, pages:136-141, Ref, Web of Science, International 2001
110 L. Davydov, R. Tsekov, P.G. Smirniotis, Optimal radiation field in one-dimensional continuous flow heterogeneous photocatalytic reactors, Chem. Eng. Sci., vol:56, 2001, pages:4837-4847, Ref, Web of Science, International 2001
111 R. Tsekov, Brownian motion of molecules: a stochastic approach, Ann. Univ. Sofia, Fac. Chem., vol:88, 2000, pages:67-74, Ref 2000
112 R. Tsekov, P. Letocart, H.J. Schulze, Dimple relaxation in wetting films, Langmuir, vol:16, 2000, pages:8206-8209, Ref, Web of Science, International 2000
113 R. Tsekov, K.W. Stöckelhuber, B.V. Toshev, Disjoining pressure and surface tension of a small drop, Langmuir, vol:16, 2000, pages:3502-3505, Ref, Web of Science, International 2000
114 R. Tsekov, B. Radoev, On the rheology of a liquid-vapor interface, Ann. Univ. Sofia, Fac. Chem., vol:88, 2000, pages:169-175, Ref 2000
115 M.N. Dimitrova, R. Tsekov, H. Matsumura, K. Furusawa, Size dependence of protein-induced flocculation of phosphatidylcholine liposomes, J. Colloid Interface Sci., vol:226, 2000, pages:44-50, Ref, Web of Science, International 2000
116 R. Tsekov, S. Kovac, V. Zutic, Attachment of oil droplets and cells on dropping mercury electrode, Langmuir, vol:15, 1999, pages:5649-5653, Ref, Web of Science, International 1999
117 P. Letocart, B. Radoev, H.J. Schulze, R. Tsekov, Experiments on surface waves in thin liquid wetting films, Colloids Surf. A, vol:149, 1999, pages:151-159, Ref, Web of Science, International 1999
118 R. Tsekov, H.J. Schulze, B. Radoev, E. Manev, Linear surface waves on a liquid-vapor interface: role of the surface permanent dipole moment, Colloids Surf. A, vol:149, 1999, pages:475-479, Ref, Web of Science, International 1999
119 R. Tsekov, B. Radoev, Surface forces and dynamic effects in thin liquid films on solid interfaces, Int. J. Miner. Process., vol:56, 1999, pages:61-74, Ref, Web of Science 1999
120 R. Tsekov, H.J. Schulze, B. Radoev, P. Letocart, Dynamics of surface waves in wetting films, Colloids Surf. A, vol:142, 1998, pages:287-294, Ref, Web of Science, International 1998
121 L. Alexandrova, R. Tsekov, Kinetics of air/vesicle suspension/quartz three-phase contact, Colloids Surf. A, vol:131, 1998, pages:295-301, Ref, Web of Science 1998
122 R. Tsekov, P.G. Smirniotis, Resonant diffusion of normal alkanes in zeolites: effect of the zeolite structure and alkane molecule vibrations, J. Phys. Chem. B, vol:102, 1998, pages:9385-9391, Ref, Web of Science, International 1998
123 R. Tsekov, The R4/5-problem in the drainage of dimpled thin liquid films, Colloids Surf. A, vol:141, 1998, pages:161-164, Ref, Web of Science 1998
124 R. Tsekov, P.G. Smirniotis, Theoretical models for the rate of NO decomposition over copper-exchanged zeolites, J. Phys. Chem. B, vol:102, 1998, pages:9525-9531, Ref, Web of Science, International 1998
125 D.J. Mitev, R. Tsekov, C.S. Vassilieff, Dimple evolution in foam films of liposome (DPPC) suspensions, Colloids Surf. B, vol:10, 1997, pages:67-72, Ref, Web of Science 1997
126 E. Manev, R. Tsekov, B. Radoev, Effect of thickness non-homogeneity on the kinetic behavior of microscopic foam films, J. Disp. Sci. Technol., vol:18, 1997, pages:769-788, Ref, Web of Science 1997
127 R. Tsekov, H.J. Schulze, Hydrophobic forces in thin liquid films: adsorption contribution, Langmuir, vol:13, 1997, pages:5674-5677, Ref, Web of Science, International 1997
128 R. Tsekov, Is Einstein's relation D = kTU always true?, Ann. Univ. Sofia, Fac. Chem., vol:89, 1997, pages:39-45, Ref 1997
129 R. Tsekov, P.G. Smirniotis, Radiation field in continuous annular photo-catalytic reactors: role of the lamp finite size, Chem. Eng. Sci., vol:52, 1997, pages:1667-1671, Ref, Web of Science, International 1997
130 R. Tsekov, Stochastic equations for thermodynamics, J. Chem. Soc. Faraday Trans., vol:93, 1997, pages:1751-1753, Ref, Web of Science 1997
131 R. Tsekov, D. Mitev, C.S. Vassilieff, Kinetics of axisymmetric dimple flattening in foam films: tangential surface mobility and elasticity governed by sources of surfactant, Bulg. Chem. Commun., vol:29, 1996, pages:704-714, Ref, Web of Science 1996
132 R. Tsekov, Brownian motion of molecules: the classical theory, Ann. Univ. Sofia, Fac. Chem., vol:88, 1995, pages:57-66, Ref 1995
133 R. Tsekov, Dissipation in quantum systems, J. Phys. A Math. Gen., vol:28, 1995, pages:557-561, Ref, Web of Science 1995
134 R. Tsekov, Towards dissipative quantum mechanics, Bulg. Chem. Commun., vol:28, 1995, pages:483-488, Ref, Web of Science 1995
135 R. Tsekov, E. Ruckenstein, Two-dimensional Brownian motion of atoms and dimers on solid surfaces, Surf. Sci., vol:344, 1995, pages:175-181, Ref, Web of Science, International 1995
136 R. Tsekov, E. Ruckenstein, Brownian dynamics in amorphous solids, J. Chem. Phys., vol:101, 1994, pages:7844-7849, Ref, Web of Science, International 1994
137 E. Ruckenstein, R. Tsekov, Diffusion of atoms and dimers on metal surfaces, J. Chem. Phys., vol:100, 1994, pages:7696-7699, Ref, Web of Science, International 1994
138 R. Tsekov, E. Ruckenstein, Dimple formation and its effect on the rate of drainage in thin liquid films, Colloids Surf. A, vol:82, 1994, pages:255-261, Ref, Web of Science, International 1994
139 R. Tsekov, E. Ruckenstein, Resonant diffusion of molecules in solids, J. Chem. Phys., vol:100, 1994, pages:3808-3812, Ref, Web of Science, International 1994
140 R. Tsekov, E. Ruckenstein, Stochastic dynamics of a subsystem interacting with a solid body with application to diffusive processes in solids, J. Chem. Phys., vol:100, 1994, pages:1450-1455, Ref, Web of Science, International 1994
141 R. Tsekov, E. Ruckenstein, Effect of thermal fluctuations on the stability of draining thin films, Langmuir, vol:9, 1993, pages:3264-3269, Ref, Web of Science, International 1993
142 R. Tsekov, B. Radoev, Fluctuations on liquid-gas interfaces: cutoff limit problem of the surface waves, J. Phys. Condens. Matter, vol:5, 1993, pages:3397-3404, Ref, Web of Science 1993
143 R. Tsekov, B. Radoev, Viscous-dissipative correlations in fluctuating hydrodynamics, J. Phys. Condens. Matter , vol:5, 1993, pages:8799-8804, Ref, Web of Science 1993
144 R. Tsekov, B. Radoev, Lifetime of non-thinning liquid films: influence of the surface waves spatial correlations, Adv. Colloid Interface Sci., vol:38, 1992, pages:353-369, Ref, Web of Science 1992
145 R. Tsekov, G. Vayssilov, Memory effect on pre-exponential factor of rate constant for dissociation of adsorbed molecules, J. Phys. Chem., vol:96, 1992, pages:3452-3454, Ref, Web of Science 1992
146 R. Tsekov, A. Slavev, On the kinetics of Ag-Ti alloy oxidation, React. Kinet. Catal. Lett. , vol:48, 1992, pages:505-512, Ref, Web of Science 1992
147 R. Tsekov, G.N. Vayssilov, Quantum Brownian motion and classical diffusion, Chem. Phys. Lett., vol:195, 1992, pages:423-426, Ref, Web of Science 1992
148 R. Tsekov, B. Radoev, Rupture of thinning liquid films: influence of the surface waves spatial correlations, J. Chem. Soc. Faraday Trans., vol:88, 1992, pages:251-253, Ref, Web of Science 1992
149 G. Vayssilov, R. Tsekov, Temperature dependence of the rate constant for dissociation of adsorbed molecules, Chem. Phys. Lett. , vol:188, 1992, pages:497-500, Ref, Web of Science 1992
150 K. Dimitrov, B. Radoev, R. Tsekov, Transport coefficients in composites, Ann. Univ. Sofia, Fac. Chem. , vol:82, 1992, pages:209-218, Ref 1992
151 R. Tsekov, B. Radoev, Velocity autocorrelation function in fluctuating hydrodynamics: frequency dependence of the kinematic viscosity, J. Phys. Condens. Matter, vol:4, 1992, pages:303-305, Ref, Web of Science 1992
152 G. Vayssilov, R. Tsekov, Energy transfer in adsorbed molecule/solid surface vibration interactions, Surf. Sci., vol:255, 1991, pages:355-360, Ref, Web of Science 1991
153 R. Tsekov, B. Radoev, On the velocity autocorrelation function of a Brownian particle, Bulg. Chem. Commun., vol:24, 1991, pages:576-580, Ref, Web of Science 1991
154 B. Radoev, R. Tsekov, Viscous-dissipative correlations on fluid interfaces, Adv. Colloid Interface Sci., vol:33, 1990, pages:79-90, Ref, Web of Science 1990
Статия в поредица
1 R. Tsekov, A theoretical chemist, HUB, vol:25 Years Humboldt Union in Bulgaria, editor/s:I. Pajeva, Publisher:Faber, 2017, pages:347-348 2017
2 R. Tsekov, Quantum mechanics emerging from stochastic dynamics of virtual particles, J. Phys. Conf. Ser., vol:Emergent Quantum Mechanics, issue:701, editor/s:G. Grössing, H.T. Elze, J.M. Pascasio, J. Walleczek, Publisher:IOP, 2016, pages:12034-0, Ref, Web of Science 2016
3 R. Tsekov, A physical chemist, HUB, vol:Almanach der Bulgarischen Humboldtianer, editor/s:D. Platikanov, I. Pajeva, L. Taseva, Publisher:Craft, 2011, pages:276-277 2011
4 R. Tsekov, O.I. Vinogradova, Charged semi-permeable shell with encapsulated polyions, Macromol. Symp., vol:Statistical Mechanics of Polymers, issue:252, editor/s:K. Binder, A. Khokhlov, V. Ivanov, S. Kuchanov, Publisher:Wiley, 2007, pages:149-154, Ref, Web of Science, International 2007
5 B. Radoev, K.W. Stöckelhuber, R. Tsekov, P. Letocart, Wetting film dynamics and stability, Colloids Interface Sci. Ser., vol:Colloid Stability and Application in Pharmacy, issue:3, editor/s:T.F. Tadros , Publisher:Wiley, 2007, pages:151-172, Ref, International 2007
6 R. Tsekov, E. Evstatieva, A fractal classification of the drainage dynamics in thin liquid films, Prog. Colloid Polym. Sci., vol:Trends in Colloid and Interface Science XVII, issue:126, editor/s:V. Cabuil, P. Levetz, C. Treiner , Publisher:Springer, 2004, pages:93-96, Ref, Web of Science 2004
7 R. Tsekov, E. Evstatieva, K.W. Stöckelhuber, P.G. Smirniotis, Stability of TiO2 suspensions in reactors for degradation of toxic pollutants, Prog. Colloid Polym. Sci., vol:Trends in Colloid and Interface Science XVII, issue:126, editor/s:V. Cabuil, P. Levetz, C. Treiner , Publisher:Springer, 2004, pages:117-120, Ref, Web of Science, International 2004
8 R. Tsekov, Drainage of foam films, NATO ASI Ser. E Appl. Sci., vol:Foams and Emulsions, issue:354, editor/s:J. Sadoc, N. Rivier , Publisher:Kluwer, 1999, pages:83-90, Ref, Web of Science 1999
9 R. Tsekov, Resonant diffusion on solid surfaces, NATO ASI Ser. B Phys., vol:Surface Diffusion: Atomistic and Collective Processes, issue:360, editor/s:M.C. Tringides, Publisher:Plenum, 1997, pages:419-425, Ref, Web of Science 1997
10 R. Tsekov, B. Cohen, B. Radoev, H.J. Schulze, Where is liquid-vapor interface located in solutions?, Euromech, vol:Fluid Mechanics of Coating Processes, issue:367, editor/s:P. Bourgin, Publisher:ECS, 1997, pages:53-60, Ref, International 1997
Участие в конференция
1 Секционен доклад, R. Tsekov, Social Thermodynamics 2.0 2024
2 Постер, Р. Цеков, Постер 2024
3 Присъствие, Р. Цеков, Участие 2023
4 Присъствие, R. Tsekov, Участие 2022
5 Присъствие, R. Tsekov, Участие 2022
6 Присъствие, R. Tsekov, Организатор 2021
7 Секционен доклад, Р. Цеков, Доклад 2019
8 Присъствие, R. Tsekov, Организатор 2019
9 Присъствие, R. Tsekov, Организатор 2019
10 Присъствие, R. Tsekov, Организатор 2019
11 Присъствие, R. Tsekov, Организатор 2018
12 Присъствие, R. Tsekov, Организатор 2018
13 Присъствие, R. Tsekov, Организатор 2018
14 Присъствие, R. Tsekov, Организатор 2018
15 Секционен доклад, Р. Цеков, Доклад 2018
16 Присъствие, R. Tsekov, Организатор 2018
17 Присъствие, Р. Цеков, Организатор 2017
18 Присъствие, R. Tsekov, Организатор 2017
19 Присъствие, R. Tsekov, Организатор 2017
20 Присъствие, R. Tsekov, Организатор 2017
21 Присъствие, Р. Цеков, Организатор 2017
22 Присъствие, R. Tsekov, Организатор 2017
23 Присъствие, R. Tsekov, Организатор 2017
24 Присъствие, R. Tsekov, Организатор 2017
25 Присъствие, Р. Цеков, Организатор 2016
26 Секционен доклад, Р. Цеков, Доклад 2016
27 Постер, Р. Цеков, Постер 2016
28 Присъствие, Р. Цеков, Организатор 2015
29 Присъствие, R. Tsekov, Организатор 2015
30 Присъствие, Р. Цеков, Организатор 2015
31 Постер, R. Tsekov, Постер 2015
32 Постер, R. Tsekov, Постер 2015
33 Присъствие, Р. Цеков, Организатор 2014
34 Присъствие, Р. Цеков, Организатор 2014
35 Присъствие, Р. Цеков, Организатор 2014
36 Присъствие, Р. Цеков, Организатор 2014
37 Присъствие, Р. Цеков, Организатор 2013
38 Присъствие, Р. Цеков, Организатор 2013
39 Присъствие, R. Tsekov, Организатор 2013
40 Присъствие, Р. Цеков, Организатор 2012
41 Присъствие, Р. Цеков, Организатор 2012
42 Постер, R. Tsekov, Постер 2011
43 Присъствие, Р. Цеков, Организатор 2010
44 Присъствие, Р. Цеков, Организатор 2010
45 Секционен доклад, R. Tsekov, Доклад 2008
46 Секционен доклад, R. Tsekov, Доклад 2007
47 Секционен доклад, R. Tsekov, Доклад 2007
48 Секционен доклад, R. Tsekov, Доклад 2007
49 Постер, R. Tsekov, Постер 2007
50 Секционен доклад, R. Tsekov, Доклад 2006
51 Постер, R. Tsekov, Постер 2005
52 Постер, R. Tsekov, Постер 2003
53 Постер, R. Tsekov, Постер 2003
54 Постер, R. Tsekov, Постер 2002
55 Постер, R. Tsekov, Постер 2002
56 Постер, R. Tsekov, Постер 2001
57 Секционен доклад, R. Tsekov, Доклад 2000
58 Постер, R. Tsekov, Постер 1999
59 Секционен доклад, R. Tsekov, Доклад 1999
60 Постер, R. Tsekov, Постер 1999
61 Секционен доклад, R. Tsekov, Доклад 1999
62 Постер, R. Tsekov, Постер 1998
63 Постер, R. Tsekov, Постер 1997
64 Секционен доклад, R. Tsekov, Доклад 1997
65 Секционен доклад, R. Tsekov, Доклад 1997
66 Секционен доклад, R. Tsekov, Доклад 1997
67 Постер, R. Tsekov, Постер 1997
68 Постер, R. Tsekov, Постер 1996
69 Постер, R. Tsekov, Постер 1996
70 Секционен доклад, R. Tsekov, Доклад 1992
71 Секционен доклад, R. Tsekov, Доклад 1991
72 Постер, R. Tsekov, Постер 1987