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991.
Bogdanov A. V. Kuz’micheva T. A. Mironov V. F. 《Russian Journal of Organic Chemistry》2017,53(4):626-627
Russian Journal of Organic Chemistry - New 1-(ω-chloroalkyl)isatins were synthesized by alkylation of isatin with α-bromo-ω-chloroalkanes. The reaction of 1-(3-chloropropyl)isatin... 相似文献
992.
N. I. Nefedov M. A. Guseva M. A. Khaskov L. N. Ignat’eva V. M. Buznik 《Polymer Science Series A》2017,59(4):496-505
The peculiarities of the behavior, structure, and properties of low-molecular fluoropolymers (fluorooligomers), namely, industrial fluoroparaffins and derivatives resulting from the thermal processing of ultradisperse powders of FORUM® trademark, are studied. The results are obtained on the basis of the IR spectroscopic investigation of the products of pyrolysis of the fluorooligomers. The measurement data on rheological properties of the samples upon heating are analyzed. 相似文献
993.
D. E. Vervikishko E. I. Shkol’nikov I. V. Yanilkin Yu. G. Chirkov V. I. Rostokin 《Russian Journal of Electrochemistry》2017,53(5):500-508
For supercapacitors with sulfuric acid electrolyte, a promising carbon material was suggested, namely, activated carbon from waste wood. It was shown how the synthesis conditions of activated carbon affect its porous structure and electrochemical characteristics of supercapacitors on its basis. The changes in the porous material under different synthesis conditions were controlled using the highly informative limited evaporation method, which allows us to obtain complete information about the porous structure of the micro- and mesopores of the material within a relatively short period of time. The negative effect of the excess volume of macropores in the electrode on the capacity and energy based on the dry mass of electrodes was shown experimentally and analyzed. The properties of the synthesized material were compared with those of other carbon materials. The best samples of the developed material possess a specific electric capacity of over 390 F/g. 相似文献
994.
Vladimir Fal’ko Andre Geim Sankar Das Sarma Allan MacDonald Philip Kim 《Solid State Communications》2009,149(27-28):1039-1040
995.
V. M. Red’kov 《Advances in Applied Clifford Algebras》2011,21(1):203-220
Some facts of the theory of the Lorentz group are specified for looking at the problems of light polarization optics in the
frames of vector Stokes-Mueller and spinor Jones formalism. In view of great differences between properties of isotropic and
time-like vectors in Special Relativity we should expect principal differences in describing completely polarized and partly
polarized light. In particular, substantial differences are revealed when turning to spinor techniques in the context of the
polarized light. 相似文献
996.
997.
N. N. Novikova M. V. Koval’chuk N. D. Stepina O. V. Konovalov E. A. Yurieva E. S. Chukhray 《Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques》2011,5(5):816-821
The X-ray standing wave method has been applied to study the formation of protein-lipid film on the water subphase. The influence
of different toxic reagents (heavy metals and urea) on protein-lipid interaction in an ordered film of glucose oxidase and
behenic acid has been investigated. Analysis of angular dependence of fluorescence yield provided information on molecular
arrangement in bioorganic nanosystems on the water surface, where protein and phospholipid molecules were free to move over
the water subphase. 相似文献
998.
999.
E. E. Nifant’ev D. A. Predvoditelev M. A. Malenkovskaya O. V. V’yunskovskaya 《Russian Journal of General Chemistry》2011,81(8):1592-1595
The synthesis of dithionophosphohomocholines was carried out by alkylation of trimethylamine with phosphorinane trimethylene
derivatives of tripentaerithritols. As a source tripentaerithritol acetals besides the compounds of symmetric structure were
used their stereoisomers. 相似文献
1000.
Various methods are studied for preparing stable gas mixtures with trace amounts of volatile substances based on a buffer
effect of heterogeneous systems and implemented into headspace analysis, that is, static and dynamic versions of gas extraction.
Information is provided on certified procedures for preparing such mixtures, that is, vapor-phase sources of gas mixtures
included into the State Register of Measuring Instruments. 相似文献