212.
T.Eftimov, W. Bock, P. Mikulic and Kr. Nikolova, “Long period grating based refractometer with polarization-sensitive interrogation”, Journal of Physics: Conference Series, 253 (1), art. no. 012024 (2010)
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х
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X
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213.
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T.Eftimov, W. Bock., P. Mikulic and Kr. Nikolova, “Multiplexed long period gratings with differential interrogation” Journal of Physics: Conference Series, 253 (1), art. no. 012023 (2010)
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х
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x
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214.
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T.Eftimov, I Stefanov, A. Popov and S. Vodenicharov, “Phase-sensitive reflectometer using a single-frequency laser diode and an Er-doped fibre amplifier” (2010) Journal of Physics: Conference Series, 253 (1), art. no. 012018 (2010)
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х
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x
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215.
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R. Miletiev, R. Arnaudov, W. Bock, T. Eftimov and X.Bao, (2010) “Performance Evaluation of a Few- and Multimode Fiber Optic Perimeter Sensor with Selective Mode Excitation”, Photonics Letters of Poland, vol. 2 (1), 43-45 (2010)
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х
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x
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216.
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T.Eftimov, W. Bock, P. Mikulic, J. Chen and Kr. Nikolova: Single-wavelength polarization-sensitive interrogation of a long-period grating (LPG) sensor, 2010 Meas. Sci. Technol. 21 115301
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х
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217.
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K. Zhelyazkova, T.Eftimov, M.Smietana and W. Bock. A differential detection scheme of spectral shifts in long-period fiber gratings (2011) Proceedings of SPIE - The International Society for Optical Engineering 7747, art. no. 77470S
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х
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218.
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P. Boyanova, P. Panayotov and T.Eftimov, “Analysis of fat contents in microprobes of row cow milk based on optical transmission spectra”, Vol. 16, 2011, International Conference Engineering, Technologies and Systems, Tech. Sys. 2011
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х
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x
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219.
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G.Ivanov, R. Arnaudov, T.Eftimov, V.Plachkova, R. Miletiev, “CCD linear array based interrogation of a spectrally encoded all-fiber sensor” Vol. 16, 2011, International Conference Engineering, Technologies and Systems, TechSys 2011
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х
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x
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220.
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P. Balzhiev, R. Arnaudov, T.Eftimov, “Design of an Intelligent Fiber-Optic Sensor Interrogation System”, Journal of the Technical University Sofia, branch Plovdiv “Fundamental Sciences and Applications”, Vol. 16, 2011, International Conference Engineering, Technologies and Systems, TechSys 2011
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х
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221.
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P. Balzhiev, W. Bock, T.Eftimov, P. Mikulic and R. Arnaudov, “ A spectrally and spatially multiplexed LPG sensor system using an InGaAs CCD linear array”, Optical Fiber Sensors Conference, OFS-21, Ottawa, 2011
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х
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x
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222.
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Kr. Nikolova, T.Eftimov, D. Brabant, “Classification of vegetable oils using Fluorescence spectroscopy”, Food science and technology, Vol.1. 2011.
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х
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x
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223.
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M. Smietana, D. Brabant, W. Bock, P. Mikulic, T.Eftimov, “Inline core-cladding intermodal interferometer based on nano-coated photonic crystal fiber for refractive-index sensing” (Proceedings Paper) Optical Fiber Sensors Conference, OFS-21, Ottawa, 2011, 77531R
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х
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x
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224.
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W. Bock, T.Eftimov; M.Smietana; P. Mikulic, “Efficient distributed moisture-ingress sensing using diamond-like carbon-nanocoated long period gratings”, Submission BE-2340R1, Accepted for publication in Optics Communications, (2011) Volume 284, Issue 19, p. 4470-4472.
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х
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x
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225.
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M. Smietana, D. Brabant, W. Bock, P. Mikulic; T.Eftimov. “Refractive-index Sensing with Inline Core-cladding Intermodal Interferometer Based on Silicon Nitride Nano-coated Photonic Crystal Fiber” Journ. Lightwave Techn., 2011, Issue: 99, 1 - 1
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х
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x
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226.
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T. Eftimov, T. L. Dimitrova and G. Ivanov, A Fiber-Optic Polarimetric demonstration Kit, Int. School and Conf. on Photonics, Photonica 2011, 29 August – 02 September 2011, Beograd 2011
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х
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X
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227.
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T.A.Yovcheva, T.A.Eftimov, A.P.Viraneva, Mekishev G., V.C.Yanev, I.A. Avramova, Corona charged polypropylene films irradiated by CO2 and CuBr vapor lasers, AIP Conference Proceedings 899, Sixth International Conference of the Balkan Physical Union, April 2007, p.673.
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х
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x
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228.
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T.Yovcheva, T.Eftimov, V.Yanev A.Viraneva, G.Mekishev, I. Avramova PP film electrets obtained at different temperature and irradiated by low energy lasers, Journal of Optoelectronics and Advanced Materials, 2007, 9(2), pp. 471-474.
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х
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x
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229.
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T.A. Yovcheva, I.A. Avramova, G.A. Mekishev and T.S. Marinova, Corona-charged polypropylene electrets analyzed by XPS, Journal of Electrostatics, 2007, 65(10-11), pp. 667-671.
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х
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x
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230.
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Т. Йовчева, Р. Божинова, С. Николов, Експериментално изслеxваните на спектъра на газонапълненилампи с помощта на xифракционна решетка, Сборник с xоклаxи на XXXV Национална конференция по въпросите на обучението по физика, Плевен, 1-4 април, 2007, с. 81-84.
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х
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x
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231.
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Т. Йовчева, Г. Мекишев, Експериментът и обучението по физични заxчи, Сборник с xоклаxи на XXXV Национална конференция по въпросите на обучението по физика, Плевен, 1-4 април, 2007, с. 236-239.
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х
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x
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232.
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T. Yovcheva, S. Sainov, G. Mekishev, Corona-charged polypropylene films investigated by a laser refractometer, Journal of Optoelectronics and Advanced Materials, 2007, 9(7), pp. 2087-2090.
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х
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233.
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T. Yovcheva, S. Sainov, G. Mekishev, Surface refractive index distribution in polymer film electrets, Journal of Optoelectronics and Advanced Materials, 2008, 10(2), pp. 373-376.
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х
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x
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234.
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T. Yovcheva, Tz. Babeva, K. Nikolova, and G. Mekishev, Refractive index of corona-treated polypropylene films, J. Opt. A: Pure Appl. Opt. , 2008, 10(1), Article number 055008 .
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x
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x
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235.
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Milena Ignatova, Temenujka Yovcheva, Asja Viraneva, Georgi Mekishev, Nevena Manolova, Iliya Rashkov, Study of charge storage in the nanofibrous poly(ethylene terephtalate) electrets prepared by electrospinning or by corona discharge method, European Polymer J. , 2008, 44(7), pp. 1962-1967.
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х
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236.
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I. Vlaeva, T. Yovcheva, K. Zdravkov, G. Minchev and E. Stoykova, Design and testing of four-wavelength laser micro-refractometer, Proceedings of SPIE, 2008, 7027, pp. 70270S-70270S-8.
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х
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x
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237.
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Т. Йовчева, Електретът – алтернативен енергиен източник с приложение в меxицината, Сборник с xоклаxи на XXXVI Национална конференция по въпросите на обучението по физика, София, 3-6 април, 2008, с. 175-178.
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x
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238.
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T Babeva, R Todorov, S Mintova, T Yovcheva, I Naydenova and V Toal, Optical properties of silica MFI doped acrylamide-based photopolymer, Special issue of Journal of Optic A: Pure and Applied Optics, Volume 11, Number 2, 2009, 11, pp. 24015-24022(8).
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х
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X
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239.
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T. Yovcheva, I. Naydenova, I. Vlaeva, R. Todorov, V. Toal, S. Sainov, Optical properties of charged polymer with nano-sized zeolite inclusions, Journal of Optoelectronics and Advanced Materials-Symposia, 2009, 1(3), pp. 604-607.
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х
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240.
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T. Yovcheva, K. Beev, Tz. Petrova, V. Dragostinova, G. Mekishev, S. Sainov, Electric charge influence on holographic recording in photopolymers, Journal of Optoelectronics and Advanced Materials-Symposia, 2009, 1(3), pp. 608-611.
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х
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241.
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T. Yovcheva, I. Naydenova, I. Vlaeva, S. Martin, V. Toal, S. Sainov, Optical and holographic characteristics of photopolymer layers, Journal of Optoelectronics and Advanced Materials, 2009, 11(10), pp. 1452-1455
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х
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242.
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Temenuzhka Yovcheva, Mariya Marudova, Asya Viraneva, Elena Gencheva, Ivanka Vlaeva, Simeon Sainov, Georgi Mekishev, Pectin/chitosan multilayers on different polymer substrates, Journal of Nanostructured Polymers and Nanocomposites, 2009, 5(3), pp. 55-59.
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х
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243.
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Т. Йовчева, Ю. Спаски-Белчева, Нютонови пръстени – виртуален и реален експеримент за ученици и стуxенти, Сборник с xоклаxи на XXXVII Национална конференция по въпросите на обучението по физика, Русе, 2-5 април, 2009, с. 272-275.
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x
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244.
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С. Съйнов, Т. Йовчева, К. Зxравков, Учебен лазерен рефрактометър, Сборник с xоклаxи на XXXVII Национална конференция по въпросите на обучението по физика, Русе, 2-5 април, 2009, с. 276-279.
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245.
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T. A. Yovcheva, M. G. Marudova, A. P. Viraneva, E. A. Gencheva, G. A. Mekishev and S. H. Sainov, Investigation of Pectin/Chitosan Multilayers Build-up on Corona Charged Polylactide Substrates, AIP Conference Proceedings, January 21, 2010, Volume 1203, pp. 979-984.
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х
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246.
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E. A. Gencheva, T. A. Yovcheva, M. G. Marudova, A. P. Viraneva, I. P. Bodurov, G. A. Mekishev and S. H. Sainov, Formation and Investigation of Corona Charged Films from Polylactic Acid, AIP Conference Proceedings, January 21, 2010, Volume 1203, pp. 495-501.
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х
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x
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247.
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K. Petkov, I. Vlaeva, J. Tasseva, T. Yovcheva, and S. Sainov, Optical and Holographic Characteristic of As-S-Se Thin Films, AIP Conference Proceedings, January 21, 2010, Volume 1203, pp. 650-656.
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х
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248.
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Naydenova, I. Babeva, T. Leite, E. Pandey, N. Yovcheva, T. Mintova, S. Toal, V., Optical properties of photopolymerisable nanocomposites containing zeolite nanoparticles, Optical Data Storage Topical Meeting, 2009. ODS '09, pp = 84 – 86.
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249.
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Н. Такучев, Ю. Белчева, Т. Йовчева, Колориметрия и култура, Сборник с xоклаxи на XXXVII Национална конференция по въпросите на обучението по физика, Ловеч, 8-10 април, 2010, с. 153-156.
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x
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250.
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T. A. Yovcheva, Corona treatment of polymer films, Chapter in: Electrostatics Theory and Applications, Editor: Camille L. Bertrand, Nova Science Publishers, Inc., ISBN 978-1-61668-549-2, 2010, p. 29.
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251.
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I. Vlaeva, K. Petkov, J. Tasseva, R. Todorov, T. Yovcheva, S. Sainov, Electric charging influence in holograms of total internal reflection, recorded in a very thin chalcogenide films, Journal of Optics, 2010, v. 12(12), 124008.
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252.
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T. Yovcheva, I. Vlaeva, S. Sainov, I.Naydenova, V. Toal, S. Mintova, Holographic recording in charged photopolymerisable nanocomposites, AIP Conference Proceedings, ICO-PHOTONICS-DELPHI2009, 2010, Volume 1288, pp. 39-42.
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253.
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T. A. Yovcheva, Corona charging of synthetic polymer films, NY: Nova Science Publishers, Inc., 2010, p. 60; ISBN: 978-1-61728-674-2
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х
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254.
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I Vlaeva, T Yovcheva, S Sainov, V Dragostinova and S Stavrev, Optical properties of PVA films with diamond and titania nanoparticles, Journal of Physics: Conference Series, 2010, Volume 253, 012027.
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х
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255.
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S Sainov, I. Vlaeva, T Yovcheva, V Dragostinova and S Stavrev, Dielectric Function of Polymer Nanocomposites in Small Filling Factor Approximation, Journal of Physics: Conference Series, 2010, Volume 253, 012067.
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х
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256.
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I Vlaeva, K Petkov, J Tasseva, R Todorov, T Yovcheva, S Sainov, Electric charging influence on the diffraction efficiency of total internal reflection holograms, recorded in very thin chalcogenide films, Journal of Optics, 2010, volume 12,124008 (6pp).
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