全文获取类型
收费全文 | 70篇 |
免费 | 1篇 |
专业分类
化学工业 | 8篇 |
金属工艺 | 1篇 |
机械仪表 | 4篇 |
建筑科学 | 1篇 |
轻工业 | 3篇 |
水利工程 | 5篇 |
石油天然气 | 1篇 |
无线电 | 4篇 |
一般工业技术 | 17篇 |
冶金工业 | 20篇 |
原子能技术 | 5篇 |
自动化技术 | 2篇 |
出版年
2023年 | 1篇 |
2022年 | 2篇 |
2021年 | 6篇 |
2020年 | 1篇 |
2019年 | 2篇 |
2018年 | 1篇 |
2017年 | 2篇 |
2016年 | 3篇 |
2015年 | 2篇 |
2014年 | 1篇 |
2013年 | 2篇 |
2012年 | 5篇 |
2011年 | 5篇 |
2010年 | 1篇 |
2009年 | 1篇 |
2007年 | 4篇 |
2006年 | 4篇 |
2003年 | 1篇 |
2002年 | 1篇 |
2000年 | 1篇 |
1998年 | 4篇 |
1997年 | 4篇 |
1996年 | 1篇 |
1993年 | 2篇 |
1988年 | 1篇 |
1984年 | 1篇 |
1981年 | 1篇 |
1978年 | 1篇 |
1977年 | 1篇 |
1976年 | 2篇 |
1972年 | 1篇 |
1970年 | 1篇 |
1958年 | 3篇 |
1957年 | 2篇 |
排序方式: 共有71条查询结果,搜索用时 31 毫秒
31.
32.
Lapierre A Crespo López-Urrutia JR Baumann TM Epp SW Gonchar A González Martínez AJ Liang G Rohr A Soria Orts R Simon MC Tawara H Versteegen R Ullrich J 《The Review of scientific instruments》2007,78(12):123105
A compact flat-field soft x-ray grazing-incidence grating spectrometer equipped with a cryogenically cooled back-illuminated charge-coupled device camera was built and implemented at the Heidelberg Electron Beam Ion Trap. The instrument spans the spectral region from 1 to 37 nm using two different gratings. In slitless operation mode, it directly images a radiation source, in this case ions confined in an electron beam ion trap, with high efficiency and reaching hereby a resolving power of lambda/Deltalambda approximately =130 at 2 nm and of lambda/Deltalambda approximately =600 at 28 nm. Capable of automatized operation, its low noise and excellent stability make it an ideal instrument not only for spectroscopic diagnostics requiring wide spectral coverage but also for precision wavelength measurements. 相似文献
33.
Kurashkin Konstantin V. Gonchar Alexander V. Klyushnikov Vyacheslav A. Mishakin Vasily V. 《Journal of Nondestructive Evaluation》2022,41(2):1-19
Journal of Nondestructive Evaluation - Centrifugal pumps (CPs) are mainly composed of impeller and bearings. The operation of the CPs is disturbed if any of its components is faulty. Bearings... 相似文献
34.
V. L. Naidek A. V. Nogovitsin E. F. Diyuk B. S. Gonchar O. B. Isaev V. V. Kislitsa 《Russian Metallurgy (Metally)》2012,2012(6):505-508
The technical solutions proposed for modifying the internal structure of the tundishes in slab continuous casters and intended to increase the quality of slabs and sheet rolled products are subjected to pilot tests. 相似文献
35.
VS Beliaev NV Dushin VI Barashkov MA Frolov PA Gonchar VV Kravchinina 《Canadian Metallurgical Quarterly》1997,113(4):17-21
The Doppler laser flowmetry was used in order to study the microcirculation in the skin, muscles and bone marrow at different stages of obliterating atherosclerosis of the lower extremity arteries. Progress of the disease is characterized by a decrease of the absolute indices of blood flow in combination with disturbed regulation of vascular tension. The lumbar sympathectomy causes intensification of microcirculation not only in the skin, but also in the muscular and bone marrow tissues. 相似文献
36.
Timoshenko VY Gonchar KA Mirgorodskiy IV Maslova NE Nikulin VE Mussabek GK Taurbaev YT Svanbayev EA Taurbaev TI 《Nanoscale research letters》2011,6(1):349
Films of nanocrystalline silicon (nc-Si) were prepared from hydrogenated amorphous silicon (a-Si:H) by using rapid thermal annealing. The formed nc-Si films were subjected to stain etching in hydrofluoric acid solutions in order to passivate surfaces of nc-Si. The optical reflectance spectroscopy revealed the nc-Si formation as well as the high optical quality of the formed films. The Raman scattering spectroscopy was used to estimate the mean size and volume fraction of nc-Si in the annealed films, which were about 4 to 8 nm and 44 to 90%, respectively, depending on the annealing regime. In contrast to as-deposited a-Si:H films, the nc-Si films after stain etching exhibited efficient photoluminescence in the spectral range of 600 to 950 nm at room temperature. The photoluminescence intensity and lifetimes of the stain etched nc-Si films were similar to those for conventional porous Si formed by electrochemical etching. The obtained results indicate new possibilities to prepare luminescent thin films for Si-based optoelectronics. 相似文献
37.
Physical simulation of steel injection in the intermediate ladle of a continuous slab-casting machine permits the determination
of the supply channels for the bottom tuyere such that bubble injection of the metal extends over the whole bath depth in
the intermediate ladle and the gas bubbles reliably pass through the slag coating layer. Practical results are presented for
the proposed tuyere. 相似文献
38.
39.
I. G. Gonchar 《Strength of Materials》1981,13(7):923-925
40.
P. M. Tutakin S. P. Tsytko A. N. L'vov A. K. Val'ter Iu. V. Gonchar 《Atomic Energy》1957,3(10):1165-1167