全文获取类型
收费全文 | 112篇 |
免费 | 1篇 |
专业分类
化学 | 67篇 |
晶体学 | 1篇 |
力学 | 7篇 |
数学 | 3篇 |
物理学 | 35篇 |
出版年
2022年 | 2篇 |
2018年 | 3篇 |
2016年 | 1篇 |
2015年 | 1篇 |
2013年 | 10篇 |
2012年 | 4篇 |
2011年 | 7篇 |
2010年 | 3篇 |
2009年 | 2篇 |
2008年 | 6篇 |
2007年 | 7篇 |
2006年 | 5篇 |
2005年 | 6篇 |
2004年 | 3篇 |
2003年 | 2篇 |
2002年 | 2篇 |
2001年 | 1篇 |
2000年 | 2篇 |
1999年 | 2篇 |
1998年 | 3篇 |
1996年 | 3篇 |
1995年 | 3篇 |
1994年 | 3篇 |
1993年 | 2篇 |
1991年 | 2篇 |
1990年 | 1篇 |
1988年 | 1篇 |
1987年 | 1篇 |
1985年 | 2篇 |
1984年 | 1篇 |
1982年 | 1篇 |
1978年 | 3篇 |
1977年 | 2篇 |
1976年 | 2篇 |
1975年 | 2篇 |
1973年 | 4篇 |
1956年 | 1篇 |
1939年 | 1篇 |
1933年 | 2篇 |
1914年 | 1篇 |
1913年 | 1篇 |
1909年 | 1篇 |
1908年 | 1篇 |
排序方式: 共有113条查询结果,搜索用时 234 毫秒
61.
Thomas T Blackman CS Parkin IP Carmalt CJ 《Dalton transactions (Cambridge, England : 2003)》2011,40(40):10664-10669
Thin films of titanium arsenide have been deposited from the atmospheric pressure chemical vapour deposition (APCVD) of [Ti(NMe(2))(4)] and (t)BuAsH(2) at substrate temperatures between 350-550 °C. Highly reflective, silver coloured films were obtained which showed borderline metallic-semiconductor resistivities. The titanium arsenide films were analyzed by scanning electron microscopy (SEM), Raman spectroscopy, wavelength dispersive analysis of X-rays (WDX), powder X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The films showed variable titanium to arsenic ratios but at substrate temperatures of 500 and 550 °C films with a 1 : 1 ratio of Ti : As, consistent with the composition TiAs, were deposited. Powder XRD showed that all of the films were crystalline and consistent with the formation of TiAs. Both nitrogen and carbon contamination of the films were negligible. 相似文献
62.
Ph. Blackman und R. Brandenburg 《Fresenius' Journal of Analytical Chemistry》1909,48(7-8):463-468
Ohne Zusammenfassung 相似文献
63.
Ph. Blackman B. J. Harrington T. S. Patterson Fr. C. G. F. Müller Bleyer Cohn W. Haupt J. S. Lumsden und R. Wachsmuth 《Fresenius' Journal of Analytical Chemistry》1908,47(6-7):402-413
Ohne Zusammenfassung 相似文献
64.
65.
66.
67.
V. L. Mironov O. L. Ermolaeva E. V. Skorokhodov J. A. Blackman 《Bulletin of the Russian Academy of Sciences: Physics》2013,77(1):32-35
The results from investigating magnetostatic interaction effects in ordered hexagonal arrays of anisotropic single-domain ferromagnetic nanoparticles are presented. It is demonstrated theoretically and experimentally that two stable states (with quasi-uniform configurations of magnetic moments and with zero averaged magnetic moment configurations) can be easily attained in such arrays. It is shown that the structure of an ferromagnetic resonance spectrum depends strongly on the extent of magnetostatic interaction and the spatial configuration of the magnetic moments in the array. 相似文献
68.
69.
Measurements have been made of the magnetic moment of a number of lodestones; these included ships' lodestones. The results are converted to the intensity of magnetisation and are discussed in terms of the possible origin of lodestones, based on work on rock magnetism carried out mainly in the last century. 相似文献
70.
G.L. Blackman K. Bolton R.D. Brown F.R. Burden A. Mishra 《Journal of Molecular Spectroscopy》1973,47(3):457-468
We have derived expressions for the Hamiltonian matrix elements for the coupling of any number of quadrupolar nuclei with the molecular rotation using the Wigner n-j formalism. These expressions have been used to analyse the nuclear quadrupole hyperfine structure of the rotational spectrum of cyanogen azide, NCN3. The analysis was effected by comparing the experimental high resolution spectral traces with computer simulated traces from which the nuclear quadrupole coupling constants obtained are (MHz) Small corrections to the previously reported rotational constants are given. 相似文献