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1.
T. I. Voronina T. S. Lagunova M. P. Mikhailova K. D. Moiseev M. A. Sipovskaya Yu. P. Yakovlev 《Semiconductors》1997,31(8):763-767
Galvanomagnetic phenomena and photoconductivity in broken-gap type-II GaInAsSb/p-InAs heterojunctions with different levels of doping of the solid solution with donor (Te) or acceptor (Zn) impurities have
been investigated. It has been determined that in such structures an electronic channel, which determines the galvanomagnetic
effects in a wide range of doping levels, is present at the heterojunction. A sharp decrease of the Hall mobility was observed
in the experimental heterostructures with a high level of doping of the epitaxial layer with an acceptor impurity. The observed
effect is due to exhaustion of the electronic channel as a result of carrier localization in potential wells at the heterojunction.
Fiz. Tekh. Poluprovodn. 31, 897–901 (August 1997) 相似文献
2.
A. D. Bulanov A. N. Moiseev O. Yu. Troshin V. V. Balabanov D. V. Isaev 《Inorganic Materials》2004,40(6):555-557
High-purity isotopically enriched (99.98% 28Si, 99.57% 29Si, and 99.83% 30Si) silane samples are prepared for the first time. The total hydrocarbon content of the samples is no higher than 0.1–0.3 ppm. The concentration of electroactive impurities in the silicon prepared from the purified monoisotopic silane is below 1015 cm–3. 相似文献
3.
A. V. Chirkov G. G. Denisov A. N. Kuftin V. E. Zapevalov V. I. Malygin M. A. Moiseev S. Yu. Kornishin 《Technical Physics Letters》2007,33(4):350-352
The results of numerical simulation and experimental investigation of a prototype of a megawatt multifrequency gyrotron for controlled thermonuclear fusion facilities are presented. In experiments, the gyrotron has operated at six frequencies in the range 105–152 GHz with small diffraction losses in the internal quasi-optical system and a high Gaussian mode content in the output beam. 相似文献
4.
T. I. Voronina T. S. Lagunova M. P. Mikhaĭlova K. D. Moiseev A. F. Lipaev Yu. P. Yakovlev 《Semiconductors》2006,40(5):503-520
The results of detailed study of the magnetotransport properties of broken-gap type II heterojunctions in a GaInAsSb/InAs(GaSb) system are reported. An electron channel with a high charge-carrier mobility (as high as 50000–60000 cm2/(V s)) is observed and studied for the first time in an isotype broken-gap p-GaInAsSb/p-InAs heterostructure. The effects of electron-channel depletion and semimetal-semiconductor transition in the case of heavy doping of the quaternary alloy with acceptors are studied. Magnetotransport properties at temperatures of 4.2–200 K are studied in detail. Data on the energy spectrum and parameters of two-dimensional charge carriers at the heteroboundary are obtained. It is ascertained experimentally that, depending on the composition, either staggered (at x = 0.85) or broken-gap (at x = 0.95) heterojunctions can be formed in the Ga1?x InxAsySb1?y /GaSb, which is confirmed by theoretical calculations. The anomalous Hall effect and negative magnetoresistance were observed in GaInAsSb/InAs:Mn grown on substrates doped heavily with Mn magnetic acceptor impurity so that the hole concentration was as high as p > 5 × 1018 cm?3; these phenomena are caused by exchange interaction of Mn ions in InAs with high-mobility charge carriers in the electron channel at the heterointerface. 相似文献
5.
A. A. Dabizha L. P. Ivanova V. A. Kotlyarov V. V. Moiseev I. P. Panov G. A. Petropavlovskaya 《Powder Metallurgy and Metal Ceramics》1990,29(8):595-598
Translated from Poroshkovaya Metallurgiya, No. 8(332), pp. 6–9, August, 1990. 相似文献
6.
Scientific-Industrial Association D. I. Mendeleev All-Union Scientific-Research Institute of Metrology. Translated from Atomnaya Énergiya, Vol. 73, No. 6, pp. 502-504, December, 1992. 相似文献
7.
V. N. Moiseev Yu. I. Zakharov Yu. G. Kirillov Yu. M. Dolzhanskii T. G. Danilina 《Metal Science and Heat Treatment》1990,32(3):212-216
1. | Characteristics of the mechanical properties of titanium alloy VT22 are found to be nonlinearly dependent on the heat-treatment parameters. As a rule, the strength increases, and the plasticity decreases with increasing temperature of the first step, the heating temperature for quenching, and the cooling rate, and with decreasing aging temperature. |
2. | Effects of the paired interaction between the heat-treatment parameters under investigation, i.e., the dependence of the effect of each of the parameters in vestigated on the level of the other parameters, are characteristic for alloy VT22. |
3. | Alloy VT22 is hardened during heat treatment at low cooling rates (but no lower than 3.5°C/min). |
4. | Computational equations are proposed for adjustment of the aging temperature during the heat treatment of welded subassemblies. |
8.
B. A. Kolachev V. N. Moiseev D. V. Ryndenkov F. S. Mamonova E. N. Egorov 《Metal Science and Heat Treatment》2006,48(5-6):240-243
Comparative studies of the structure and properties of alloys Ti-2.2% Al-5% Fe and Ti-2.2% Al-2.2% V-2.2% Mo-2.5% Fe in annealed,
quenched, and aged conditions are performed. The strength level of the alloys corresponds to that of VT16. The possibility
of replacing alloy VT16 by alloy Ti-2.2% Al-2.2% V-2.2% Mo-2.5% Fe is estimated.
__________
Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 6, pp. 10–13, June, 2006. 相似文献
9.
I. S. Moiseev D. S. Agapov 《Power Technology and Engineering (formerly Hydrotechnical Construction)》1976,10(10):953-965
An analysis of the experience in the Soviet Union and in foreign countries with conveyor transportation in the mining industry,
as well as with use of conveyors in hydraulic construction shows that the introduction of conveyor transportation in the field
of construction of embankment dams in this country, for delivery of earth-rock material from quarries, as well as for carrying
raw materials to concentrating plants processing nonmetallic minerals, will make it possible.
相似文献
1) | To reduce substantially the personnel nees. |
2) | To lower significantly the transportation costs for delivery of earth-rock materials to construction sites and to concentrating plants processing nonmetallic mateirals (rubble, gravel, and sand); |
3) | To reduce the need for trucks, by replacing them with conveyors; |
4) | To increase the rate of delivery of earth-rock materials from quarries for dam, construction and, consequently, to reduce the times of completion. |
5) | To reduce the volume of housing, cultural-welfare, and auxiliary-subsidiary construction in owing to the lower needs for personnel in conveyor transportation; |
6) | To eliminate the need for constructing a large number of roads with rigid pavements for large-capacity dump trucks; |
7) | To raise the technical level of the earth-rock work. |
10.
A. N. Moiseev A. A. Nazarov 《Optoelectronics, Instrumentation and Data Processing》2014,50(2):163-171
This paper presents a study of an infinite-server multistage queuing system with a high-rate renewal arrival process and arbitrary service time. It is shown that under the condition of infinitely increasing rate of arrival, the multidimensional distribution of the probabilities of the number of servers employed to service stages of the system can be approximated by a multidimensional normal distribution. The expectation vector and the covariance matrix of this distribution were obtained. 相似文献