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排序方式: 共有112条查询结果,搜索用时 31 毫秒
1.
Avramenko Andriy A. Shevchuk Igor V. Dmitrenko Nataliia P. Skitsko Ivan F. 《Journal of Thermal Analysis and Calorimetry》2022,147(22):12709-12719
Journal of Thermal Analysis and Calorimetry - The paper focuses on the analytical analysis of the propagation of a normal shock wave in an adiabatic gas flow with nanoparticles. A modified... 相似文献
2.
V. A. Beloshenko V. N. Varyukhin V. Yu. Dmitrenko Yu. I. Nepochatykh V. Z. Spuskanyuk A. N. Cherkasov B. A. Shevchenko 《Technical Physics》2009,54(12):1790-1794
The structure and magnetic properties of Cu-Fe fiber composites prepared by packet hydrostatic extrusion are studied. The
number of armco-iron fibers in the copper matrix attained n ∼ 8 × 1010, and rated diameter d of fibers varied from 2 mm to 3 nm. A correlation is observed between the magnetization hysteresis curves and low-frequency
magnetic susceptibility obtained on samples with various values of d. It is shown that the magnetic properties of composites in the submicrometer range of d values are satisfactorily described in the magnetization reversal theory for small ferromagnetic particles. 相似文献
3.
S. N. P’ya K. F. Vlasik V. M. Grachev V. V. Dmitrenko A. S. Novikov D. V. Petrenko A. E. Shustov Z. M. Uteshev S. E. Ulin I. V. Chernysheva 《Bulletin of the Lebedev Physics Institute》2014,41(9):247-251
The results of the calculation of the detection efficiency of gamma-rays for the xenon gamma spectrometer (XGS) obtained using the GEANT4 Monte Carlo simulation are presented. The gamma spectra of the set of basic standard gamma-sources (OSGI) are analyzed for a real detector, and the calculated and actual detection efficiencies are compared. The XGS spectra are analyzed to determine the minimum concentration of the 152Eu radio nuclide in the 137Cs and 60Co mixture. It is shown that the xenon gamma spectrometer is capable of detecting the isotope at concentrations above 40% in the mixture. 相似文献
4.
The 15N and 13C chemical shifts of 6‐(fluoro, chloro, bromo, and iodo)purine 2′‐deoxynucleoside derivatives in deuterated chloroform were measured. The 15N chemical shifts were determined by the 1H? 15N HMBC method, and complete 15N chemical‐shift assignments were made with the aid of density functional theory (DFT) calculations. Inclusion of solvation effects significantly improved the precision of the calculations of 15N chemical shifts. Halogen‐substitution effects on the 15N and 13C chemical shifts of purine rings are discussed in the context of DFT results. The experimental coupling constants for 19F interacting with 15N and 13C of the 6‐fluoropurine 2‐deoxynuleoside are compared with those from DFT calculations. Copyright © 2009 John Wiley & Sons, Ltd. 相似文献
5.
Maria A. Simonova Elena. E. Petrova Olga A. Dmitrenko Ravilya L. Komaleva Natalia S. Shoshina Larisa V. Samokhvalova Tatiana I. Valyakina Eugene V. Grishin 《Analytical and bioanalytical chemistry》2014,406(25):6447-6452
Detection of staphylococcal toxins presents a great interest for medical diagnostics. Screening of clinical samples for the presence of several types of staphylococcal toxins using traditional methods—biological tests on animals or cell cultures as well as ELISA—is laborious. Multiplex detection methods would simplify testing. We have designed an xMAP-based assay to detect three staphylococcal toxins—enterotoxins A and B (SEA and SEB) and toxic shock syndrome toxin (TSST)—in cultural supernatants obtained from different strains of Staphylococcus aureus. The limits of detection of SEA, SEB, and TSST multiplex detection in S. aureus growth medium were 10, 1,000, and 5 pg/mL, respectively. Fifty-nine samples of S. aureus cultural supernatants were tested with the xMAP assay. The developed assay has proved highly effective detection of the natural toxins in the samples obtained due to bacterial cells cultivation. In prospect, the developed test system can be used in clinical diagnostics and in monitoring of foodstuffs and environmental objects. 相似文献
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S. I. Sidorenko A. M. Taratin S. A. Vorob'ev P. A. Kotsyumakha A. I. Kurlat B. M. Sobishchanskii A. G. Khotchenkov B. F. Minaev S. I. Galko E. A. Vasil'kovskaya V. V. Gorskii V. M. Lisitsyn A. Z. Éfendiev A. M. Yunusov S. A. Sadykov A. A. Aliverdiev T. A. Borodina T. S. Minakova V. I. Perov Yu. A. Tisenko Z. F. Dmitrenko V. V. Mikho V. Ya. Galin Yu. S. Makushkin A. I. Petrova VI. G. Tyuterev A. G. Yakunin G. A. Korablev 《Russian Physics Journal》1977,20(8):1116-1122