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| 1 | 显示文摘 | Petrov Kostadin Rojas Rosa M Alonso Pablo J | 2005 | Solid State Sciences2005,7,: | 1 |
| 2 | Electrical field and current distributions in electrocheotherapy显示文摘 | Kostadin Brandiaky Ivan Daskalov | 2004 | Bioelectrochemistry and bioenergetics2004,,48: | 1 |
| 3 | New Genetic Algorithms (GA) to Optimize PWR Reactors显示文摘 | Fatih Alim Kostadin lvanov | 2008 | Annals of Nuclear Energy2008,1,3: | 1 |
| 4 | On Digital Filtering ofBand-Limited Signals Using Lower Sampling Rates显示文摘 | Tzvetkov Kostadin Tarczynski Andrzej | 2010 | Journal ofComputers2010,5,10: | 1 |
| 5 | On digital filtering of band-limited signals using lower sampling rates显示文摘 | Kostadin Tzvetkov Andrzej Tarczynski | | 0,,10: | 1 |
| 6 | Image denoising by sparse 3 D transform-domain collaborative filtering显示文摘 | Kostadin Dabov Alessandro Foi Vladimir Katkovnik | | 0,,08: | 1 |
| 7 | Microdisk tunable resonant filters and switches显示文摘 | Djordjev Kostadin Choi Seung-June Choi Sang-June Choi | 2002 | IEEE Photon Technol Lett2002,14,6: | 1 |
| 8 | Image denoising by sparse 3D transform-domain collaborative filtering 显示文摘 | Kostadin D Alessandro F Vladimir K | 2007 | IEEE Transac- tions on Image Processing2007,16,8: | 1 |
| 9 | Image Denoising by Sparse 3-D Transform-Domain Collaborative Filtering 显示文摘 | Kostadin Dabov Alessandro Foi Vladimir Katkovnik | 2007 | IEEE Transactions on Image Processing(S1057-7149)2007,16,8: | 1 |
| 10 | Effect of UV Radiation and Other Abiotic Stress Factors on DNA of Different Wild Plant Species Grown in Three Successive Seasons in Alpine and Subalpine Regions显示文摘Plants in natural ecosystems are exposed to a combination of UV radiation,ionizing radiation(IR)and other abiotic factors.These factors change with the altitude.We investigated DNA alterations of some wild plants of different plant families in natural ecosystems at three altitudes in Rila Mountain,Bulgaria(1500,1782,and 2925 m above sea level(a.s.l.)exposed to UV radiation,IR and other abiotic stresses,to assess the tolerance of plant species to the changing environmental conditions in three successive growth seasons.For this purpose,physicochemical,cytogenetic,and molecular methods were applied.DNA damage was assessed by micronucleus test and molecular method comet assay adapted and applied by us to wild plant species from Onagraceae,Rosaceae,Boraginaceae,Saxifragaceae,Orobanchaceae,Asteraceae and Poaceae families,growing at three different altitudes.Variability in the DNA sensitivity and the level of tolerance was observed among the plant species in response to combined abiotic factors assessed by induced DNA damage and gross beta activity.The studied representatives of Poaceae were less susceptible than the other studied species at all three altitudes and showed close level of DNA injuries to that of unaffected control plant grown in laboratory conditions.The lower levels of DNA damage of these wild plant species corresponded to their lower ability to accumulate radionuclides.There was a particularly pronounced low level of DNA injuries in the plant species at the highest altitude.The level of DNA damage showed correlation with the values of some abiotic environmental factors.The results would contribute to the elucidation of the extent of adaptation of plant species to the continuously changing environment and would be useful in selecting sensitive herbaceous monitor species for environmental impact assessment at mountain and alpine sites. | Svetla P.Gateva Gabriele Jovtchev Tsveta V.Angelova Tzvetana P.Nonova Nikolay Tyutyundzhiev Elena G.Geleva Kostadin Katrandzhiev Nina A.Nikolova Dimitar Dimitrov Christo V.Angelov | 2022 | Phyton-International Journal of Experimental Botany2022,91,2: | 1 |
| 11 | Challenges in coupled thermal–hydraulics and neutronics simulations for LWR safety analysis显示文摘 | Kostadin Ivanov Maria Avramova | 2007 | Annals of Nuclear Energy2007,,6: | 1 |
| 12 | Image Denoising bySparse 3-D Transform-Domain Collaborative Filtering显示文摘 | Kostadin D Alessandro F Karen E | 2007 | IEEE transactions on image processing2007,16,2: | 1 |
| 13 | New genetic algorithms (GA) to optimize PWR reactors显示文摘 | FATIH A KOSTADIN L | 2008 | Annals of Nuclear Energy2008,1,3: | 1 |
| 14 | 核数据对球床式高温气冷堆燃料元件中子学特性的影响显示文摘球床式高温气冷堆采用了球形燃料元件,燃料区域由石墨基体和弥散在其中的包覆燃料颗粒构成,其外有与石墨基体相同材料的包壳;燃料球堆叠成填充率约为0.61的球床式堆芯活性区。在堆芯物理计算中,必须考虑其特殊的双重非均匀性结构对共振计算的影响。此外,由于石墨起到了中子慢化和结构材料的重要作用,其截面参数的准确性对共振计算和临界计算均有很大影响。本文采用蒙特卡罗中子输运计算程序SCALE/KENO-Ⅵ和Serpent-2,对比分析了ENDF/B Ⅶ.0和ENDF/B Ⅶ.1版本核数据库对不同燃料模型的有效增殖因数(keff)及反应率的影响,并进一步比较了不同双重非均匀性处理方法对计算结果的影响。结果表明,由于石墨吸收率增大,使用ENDF/B Ⅶ.1版本核数据库所得keff小于使用ENDF/B Ⅶ.0版本核数据库的结果,且计算模型中石墨材料越多,计算结果相差越大:对于包覆颗粒模型差别约为200pcm,对于燃料元件约为700pcm,对于堆芯单元约为1 600pcm。SCALE/KENO-Ⅵ程序使用DOUBLEHET模型进行多群蒙特卡罗计算所得结果与连续能量模型计算结果吻合良好,且计算效率高,对燃料球模型而言可节省约85%的计算时间。 | 王黎东 郭炯 李富 Jason Hou Kostadin Ivanov | 2017 | 原子能科学技术2017,51,9: | 1 |
| 15 | Kinetics, mechanism and mathematical modeling of extraction of citric acid with isodecanol/n-paraffins solutions of trioctylamine显示文摘 | A Poposka Kostadin Nikolovski and Radmila Tomoveska | 1998 | Chemical Engineering Science(Great Britain)1998,18,: | 1 |
| 16 | Image denoising by sparse 3D transform-domain collaborative filtering 显示文摘 | Kostadin D Alessandro F Karen E | 2007 | IEEE Transactions on Image Processing2007,16,8: | 1 |
| 17 | Computer Simulation of CD-Based Injection-Moulded Micro-Patterned Polymer Substrates for Cell Immobilization显示文摘 | Dimitar Trifonov Kostadin Kostadinov Muhammed Al-Wahab Vladimir Kotev | 2011 | 材料科学与工程(中英文版)2011,5,1: | 0 |