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31.
V. P. Kalinushkin A. N. Buzynin D. I. Murin V. A. Yuryev O. V. Astaf’ev 《Semiconductors》1997,31(10):994-998
The influence of the internal gettering process on the large-scale defects in Czochralski-grown boron-doped single-crystal
silicon is investigated by low-angle mid-infrared light scattering. The large-scale defects in the as-grown material and crystals
subjected to the internal gettering procedure are classified. The applicability of low-angle light scattering in laboratory
investigations and in the industrial inspection of the operations in an internal gettering production cycle is demonstrated.
Fiz. Tekh. Poluprovodn. 31, 1158–1163 (October 1997) 相似文献
32.
I. A. Afanas’ev M. V. Kostina E. V. Blinov I. O. Bannykh Yu. A. Bondarenko 《Russian Metallurgy (Metally)》2007,(3):209-213
The structure and properties of an austenitic high-nitrogen corrosion-resistant 05Kh22AG15N8M2F cast steel produced by high-gradient directional solidification (HGDS) and equiaxed-grain solidification (ES) have been studied and compared. In contrast to ES, HGDS allows one to substantially decrease the degree of dendritic segregation of alloying elements, to eliminate porosity, and to increase the strength and plasticity of the steel. 相似文献
33.
The effects of various arylthio-and arylseleno(methoxy)methanes on corrosion of CT3 steel in sulfuric and hydrochloric acid solutions were studied by gravimetric and voltammetric methods. Some compounds of
theses classes were found to be effective inhibitors of the acid corrosion of CT3 steel. The presence of the-X-CH2-O-CH3 groups (X = S or Se) in aromatic amines and their derivatives enhanced their inhibitive properties. However, because these
groups are highly hydrophobic, the molecules of inhibitors should contain other fragments that ensure sufficient solubility.
Original Russian Text ? I.N. Chernyad’ev, A.B. Shein, A.N. Nedugov, 2007, published in Zashchita Metallov, 2007, Vol. 43,
No. 3, pp. 285–289. 相似文献
34.
A. I. Afanas’ev 《Russian Electrical Engineering》2007,78(12):635-643
Results of the studies of the discharge characteristics of insulating systems of high-voltage overvoltage limiters during lightning pulses are presented. For certain dimensions of the screen system of the overvoltage limiters, it is shown that the electric strength of their external insulation may be determined by the discharge voltages of the gap between the screen and the stack of voltage-dependent resistors. A semi-empiric technique for calculating the discharge voltages of the insulating systems of overvoltage limiters during lightning surge is developed. 相似文献
35.
A. A. Andronov I. A. Grishin V. A. Gur’ev V. V. Orekhovskii A. P. Savikin 《Technical Physics Letters》1998,24(5):365-366
In fluorozirconate glasses the luminescence yield of Er
2
3+
ions on the 4
I
13/2–4
I
15/2 lasing transition was increased more than tenfold by additional doping with Yb3+ and Tb3+ ions.
Pis’ma Zh. Tekh. Fiz. 24, 81–85 (May 12, 1998) 相似文献
36.
Yu. M. Shernyakov A. Yu. Egorov B. V. Volovik A. E. Zhukov A. R. Kovsh A. V. Lunev N. N. Ledentsov M. V. Maksimov A. V. Sakharov V. M. Ustinov Zhen Zhao P. S. Kop’ev Zh. I. Alferov D. Bimberg 《Technical Physics Letters》1998,24(5):351-353
Continuous-wave lasing has been demonstrated in a vertically coupled quantum-dot laser with a high output power (1.5 W) at
room temperature. It was shown that anisotropy of the quantum dot profile leads to anisotropy of the laser operating characteristics.
Pis’ma Zh. Tekh. Fiz. 24, 50–55 (May 12, 1998) 相似文献
37.
Rapid development of the cluster multiprocessor computer systems allows one to pose to the designers of the computer-graphical systems the problem of organization of graphical information enabling efficient use of the parallel algorithms. Consideration was given to the use of the dichotomous principle of binary construction of a numerical sequence for successive indexing of the elements of a multidimensional array in the problems of recursive decomposition of the multidimensional space. This principle was used to advantage in recursive construction of the voxel graphical information used in the program accelerators of graphical processing based on parallelization of the algorithm and partial sorting of the graphical output flow in terms of the recursion depth. 相似文献
38.
Summary The synthesis is reported of copolymers of styrene with methacrylic acid and of methyl methacrylate with methacrylic acid by radical copolymerization, of copolymers of methyl methacrylate with methacrylic acid by partial alkaline hydrolysis of poly(methyl methacrylate), and of block copolymers of styrene with methacrylic acid. Modified titration curves of all these copolymers were recorded in water and water-ethanol solutions. In a solution containing 50 mass.% ethanol, only small differences could be observed between the potentiometric behaviour of the individual copolymers and polymethacrylic acid. Also, there were no essential differences in any of the solvents used between the potentiometric behaviour of block copolymers of styrene with methacrylic acid, on the one hand, and polymethacrylic acid, on the other. On the contrary, maxima and minima were always observed on the modified titration curves of statistical copolymers with a higher content of the hydrophobic comonomer in solutions with a high water content. Thus, using the modified titration curves, it is possible to decide whether a given copolymer is of the block or statistical type. 相似文献
39.
V.?P.?BessmeltsevEmail author M.?V.?Maksimov V.?V.?Vileiko N.?V.?Goloshevskii V.?S.?Terent’ev 《Optoelectronics, Instrumentation and Data Processing》2018,54(6):531-537
Implementation of a laser scanning confocal microscope is described, where the specimen is scanned by an array of illuminating beams, which significantly increases the velocity of object image construction. The array formation is provided by using a diffractive optical element. Scanning by the array of laser beams over the specimen is performed by galvanometric scanners with moving refractive plane-parallel plates. Owing to application of such a scanning device, the beams in the illuminating channel and the signal beams in the receiving channel pass through one motionless array of confocal diaphragms; as a result, the scanning beams in the specimen plane and the signal beams in the plane of the photodetector matrix can be used without an additional synchronized pair of scanners. The proposed confocal microscope can be applied in problems that require a fast response. 相似文献
40.
Agroskin V. Ya. Bravyi B. G. Vasil’ev G. K. Gur’ev V. I. Kashtanov S. A. Makarov E. F. Sotnichenko S. A. Chernyshev Yu. A. 《Combustion, Explosion, and Shock Waves》2021,57(2):138-149
Combustion, Explosion, and Shock Waves - The ignition of methane–air mixtures with additives of ClF5, ClF3, OF2, and H2O2 (additive content in the mixtures $$\le$$ 1%) is studied by... 相似文献