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Pankratov, Alexei N .,Tsivileva, Olga M .,Nikitina, Valentina E . 생화학분자생물학회 2001 BMB Reports Vol.33 No.1
Based on the study by Leatham and Stahmann concerned with the rates (v) of amines and phenolic compounds oxidation catalyzed by lactase of basidiomycete Lentinus edodes (Berk.) Sing., as well as on the results of semiempirical quantum chemical computations using the PM3 method, the linear correlations of v and lnv values with first vertical ionization potentials of the substrates molecules and radicals derived from them, spin densities on N and O atoms of the above radicals, and with the radicals reorganization energies have been found.
Pankratov, E.L. Techno-Press 2020 Advances in materials research Vol.9 No.2
In this paper, using the recently introduced analytical approach for the analysis of mass and heat transfer during film growth in reactors for epitaxy from the gas phase, these processes are analyzed taking into account natural convection and the possibility of changing the rate of chemical interaction between reagents. As a result of the analysis, the conditions under which the homogeneity of the grown epitaxial layers increases with a change in the values of the parameters of the growth process are formulated.
Pankratov, Alexei N.,Tsivileva, Olga M.,Nikitina, Valentina E. Korean Society for Biochemistry and Molecular Biol 2000 Journal of biochemistry and molecular biology Vol.33 No.1
Based on the study by Leatham and Stabmann concerned with the rates (v) of amines and phenolic compounds oxidation catalyzed by laccase of basidiomycete Lentinus edodes (Berk.) Sing., as well as on the results of semiempirical quantum chemical computations using the PM3 method, the linear correlations of v and lnv values with first vertical ionization potentials of the substrates molecules and radicals derived from them, spin densities on N and O atoms of the above radicals, and with the radicals reorganization energies have been found.
SYNCHRONIZATION OF IMPURITIES INFUSION FOR PRODUCTION OF A SEQUENCE OF DIFFUSED-JUNCTION RECTIFIERS
E. L. PANKRATOV 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2009 NANO Vol.4 No.3
An approach to increase both the sharpness of a series of diffused-junction rectifiers and to increase the homogeneity of dopant distribution in dopant-enriched areas has been considered. The conditions to obtain both the effects are determined. Annealing time has been optimized for increasing simultaneously the sharpness and the homogeneity. The dependence of the optimal annealing time on several parameters of the model have been analyzed.
REDISTRIBUTION OF DOPANT DURING OVERGROWTH OF A DELTA-LAYER
E. L. PANKRATOV 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2009 NANO Vol.4 No.4
In this paper, we analyze redistribution of dopant in δ-doped are during overgrowth of the layer. New explanation of asymmetrization of δ-dopant distribution is presented. The explanation was based on model with some inhomogeneous parameters. The inhomogeneities of parameters are native effects of the considered technological process and inhomogeneity of the doped heterostructure. We calculated spatial distribution of Mn concentration in δ-doped area in heterostructure GaAs/InGaAs/GaAs for overlayer GaAs and estimated spreading of the δ-layer as a function of temperature of overgrowth and depth of the overlayer.
E. L. PANKRATOV 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2009 NANO Vol.4 No.1
In the present paper the conditions to increase both the sharpness of the p–n-junctions, which produced as the elements of a system of rectifiers, and homogeneity of impurity concentrations in doped areas are determined. Moreover the development of a mathematical approach for analysis of dopant dynamics during annealing of dopant or radiation defects is presented. Annealing time has been optimized for increasing simultaneously the sharpness and the homogeneity.
E. L. PANKRATOV 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2009 NANO Vol.4 No.5
It has been recently shown that inhomogeneity of a multilayer structure and optimization of annealing time give us the possibility to decrease the depth of p–n-junctions, which were produced in the structures. The additional to the considered effect is increasing of homogeneity of dopant distribution in enriched by the dopant area of p–n-junction. In the present paper analysis of dopant redistribution in a multilayer structures during production a series of p–n-junctions, which was produced in the multilayer structures, has been done. We consider an approach to increase the sharpness of both diffused-junction and implanted-junction rectifiers, which comprise in a bipolar transistor or thyristor, and increasing of homogeneity of dopants distributions in enriched by the dopants areas of p–n-junctions. The approach gives us possibility to increase the degree of integration of p–n-junctions, which was produced as elements of integrated circuits. Optimization of annealing time for simultaneously increasing of the sharpness and homogeneity has been done.
INCREASING OF THE SHARPNESS OF p–n JUNCTIONS BY LASER PULSES
E. L. PANKRATOV 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2011 NANO Vol.6 No.1
Dopant redistribution in a multilayer structure during annealing by laser pulses for production of implanted-junction rectifiers has been analyzed. The analysis shows that heating the surface region of the multilayer structure leads to increasing of previously described effect of simultaneously increasing of sharpness of implanted-junction rectifier and homogeneity of dopant distribution in doped area. It was found that the theoretical spatial distribution of dopant agrees with the experimental one. Annealing time has been optimized for laser pulse annealing.
Alexei N.Pankratov,Olga M. Tsivileva,Vaoentina E.Nikitina The Korea Science and Technology Center 2000 BMB Reports Vol.33 No.1
Based on the study by Leatham and Stahmann concerned with the rates (v) of amines and phenolic compounds oxidation catalyzed by laccase of basidiomycete Lentinus edodes (Berk.) Sing., as well as on the results of semiempirical quantum chemical computations using the PM3 method, the linear correlations of v and lnv values with first vertical ionization potentials of the substrates molecules and radicals derived from them, spin densities on N and O atoms of the above radicals, and with the radicals reorganization energies have been found.
Final report on international key comparison APMP.QM-K41: 10 µmol/mol hydrogen sulfide in nitrogen
Kim, Yong-Doo,Heo, Gwi-Suk,Lee, Sangil,Han, Qiao,Wu, Hai,Konopelko, Leonid A,Kustikov, Yury A,Malginov, Andrey V,Gromova, Elena V,Pankratov, Vladimir V,Pavlov, Mikhai V,Botha, Angelique Springer-Verlag 2014 METROLOGIA -BERLIN- Vol.51 No.-
<P>This report presents the results of APMP.QM-K41, a key comparison. This comparison is designed to test the capabilities of the NMIs to measure and certify hydrogen sulfide at a nominal amount fraction of 10 µmol/mol in nitrogen. This comparison provides an opportunity to the NMIs in APMP to submit supporting evidence for CMC at the same level as CCQM-K41. The results from this comparison are linked with CCQM-K41.</P><P>Main text.To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/.</P><P>The final report has been peer-reviewed and approved for publication by the CCQM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).</P>