全文获取类型
收费全文 | 196篇 |
免费 | 0篇 |
专业分类
化学 | 77篇 |
力学 | 10篇 |
数学 | 3篇 |
物理学 | 106篇 |
出版年
2023年 | 1篇 |
2021年 | 5篇 |
2020年 | 3篇 |
2019年 | 3篇 |
2018年 | 8篇 |
2017年 | 14篇 |
2016年 | 10篇 |
2015年 | 1篇 |
2014年 | 6篇 |
2013年 | 4篇 |
2012年 | 3篇 |
2011年 | 5篇 |
2010年 | 4篇 |
2009年 | 7篇 |
2008年 | 7篇 |
2007年 | 1篇 |
2006年 | 4篇 |
2005年 | 5篇 |
2004年 | 3篇 |
2003年 | 2篇 |
2002年 | 6篇 |
2001年 | 2篇 |
2000年 | 3篇 |
1999年 | 5篇 |
1998年 | 4篇 |
1997年 | 2篇 |
1996年 | 3篇 |
1995年 | 3篇 |
1994年 | 5篇 |
1993年 | 3篇 |
1992年 | 7篇 |
1991年 | 4篇 |
1990年 | 7篇 |
1989年 | 5篇 |
1988年 | 1篇 |
1987年 | 6篇 |
1986年 | 1篇 |
1985年 | 3篇 |
1984年 | 2篇 |
1983年 | 1篇 |
1982年 | 1篇 |
1980年 | 4篇 |
1979年 | 3篇 |
1977年 | 5篇 |
1976年 | 2篇 |
1973年 | 3篇 |
1971年 | 4篇 |
1970年 | 3篇 |
1964年 | 2篇 |
排序方式: 共有196条查询结果,搜索用时 15 毫秒
111.
112.
A. R. Zaripov V. A. Orlova V. I. Pet’kov O. M. Slyunchev D. D. Galuzin S. I. Rovnyi 《Russian Journal of Inorganic Chemistry》2009,54(1):45-51
The new phosphate Cs2Mn0.5Zr1.5(PO4)3 was synthesized for the first time and characterized by X-ray diffraction. Its crystal structure was refined in space group P213, Z = 4 at 25°C (a = 10.3163(1) Å, V = 1097.93(1) Å3), by the Rietveld method using the powder X-ray diffraction data. The structure is built of an octahedral-tetrahedral framework {[Mn0.5Zr1.5(PO4)3]2?}3∞ with cesium atoms being located in large cavities. The hydrolytic stability of the powdered phosphate containing 137Cs radionuclide was studied. The minimum achieved 137Cs leaching rate was 4 × 10?8 g/cm2 day. 相似文献
113.
Drying and Impregnation of Wood with Propiconazole Using Supercritical Carbon Dioxide 总被引:2,自引:0,他引:2
R. F. Gabitov V. F. Khairutdinov F. M. Gumerov F. R. Gabitov Z. I. Zaripov R. Gaifullina M. I. Farakhov 《Russian Journal of Physical Chemistry B, Focus on Physics》2017,11(8):1223-1230
The process of wood drying is studied in supercritical (SC) CO2 and SC-CO2 containing 5 vol % ethanol at temperatures of 323, 343, and 353 K and pressures of 10, 20, and 30 MPa. It is established that 40–87% of moisture is removed from wood in the first cycle of drying. An increase in the duration of the decompression stage of the drying process decreases the number of cracks in the wood samples. The solubility of propiconazole is studied in SC-CO2 at 323, 343, and 353 K in the pressure range of 10–30 MPa using a dynamic method. Rather high saturation concentrations of (3–5) × 10–3 mol/mol CO2 are obtained, which indicates the potential benefits of using SC-CO2 as a solvent in wood impregnation with propiconazole. Continuous impregnation is achieved when impregnating wood with propiconazole from SC-CO2. The impregnation efficiency increases with increasing pressure and duration of the process. 相似文献
114.
I. Sh. Khabriev V. F. Khairutdinov Z. I. Zaripov F. M. Gumerov V. A. Petrov N. V. Kuznetsova R. M. Khuzakhanov 《Russian Journal of Physical Chemistry B, Focus on Physics》2017,11(8):1231-1245
The solubility of paracetamol in supercritical carbon dioxide and its mixtures with acetone is experientially studied. The isobaric heat capacity of paracetamol and the systems “paracetamol–CO2” and “paracetamol–acetone–CO2” is measured under pressures 7–29 MPa and temperatures 303–523 K. The results of paracetamol dispersing using the SEDS method (Solution Enhanced Dispersion by Supercritical Fluids) are presented. 相似文献
115.
R. G. Zaripov 《Russian Physics Journal》1987,30(7):588-591
The probabilistic-statistical justification for the equilibrium-thermodynamic Maxwell-Gouy potential is given. The relationship between the change in the potential and the information about the structure of the system, expressed by Kul'bak's measure, is established.Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 7, pp. 29–33, July, 1987. 相似文献
116.
117.
118.
119.
120.