全文获取类型
收费全文 | 84篇 |
免费 | 0篇 |
专业分类
电工技术 | 1篇 |
化学工业 | 8篇 |
金属工艺 | 3篇 |
机械仪表 | 1篇 |
水利工程 | 7篇 |
石油天然气 | 5篇 |
无线电 | 1篇 |
一般工业技术 | 57篇 |
冶金工业 | 1篇 |
出版年
2022年 | 1篇 |
2016年 | 2篇 |
2014年 | 3篇 |
2011年 | 1篇 |
2010年 | 3篇 |
2009年 | 2篇 |
2008年 | 2篇 |
2007年 | 4篇 |
2006年 | 2篇 |
2005年 | 3篇 |
2004年 | 2篇 |
2003年 | 2篇 |
2001年 | 1篇 |
2000年 | 3篇 |
1999年 | 3篇 |
1998年 | 4篇 |
1997年 | 3篇 |
1994年 | 3篇 |
1992年 | 1篇 |
1989年 | 2篇 |
1988年 | 2篇 |
1987年 | 1篇 |
1986年 | 4篇 |
1984年 | 2篇 |
1982年 | 1篇 |
1981年 | 1篇 |
1980年 | 1篇 |
1979年 | 1篇 |
1978年 | 3篇 |
1977年 | 3篇 |
1976年 | 3篇 |
1975年 | 2篇 |
1974年 | 5篇 |
1973年 | 2篇 |
1972年 | 2篇 |
1971年 | 1篇 |
1970年 | 3篇 |
排序方式: 共有84条查询结果,搜索用时 0 毫秒
1.
2.
3.
We consider the nonstationary laminar regime of ultrafiltration in tubular membrane filters with one permeable surface depending on the selective properties of the membrane. 相似文献
4.
5.
P. D. Sarkisov Yu. A. Baikov V. P. Meshalkin 《Theoretical Foundations of Chemical Engineering》2007,41(6):793-799
The method of diffraction scattering of high-frequency electromagnetic waves at large distances from the scattering centers in crystalline systems and its application to the structural analysis of substances are considered. The relation between the differential and integral effective scattering cross sections of high-frequency electromagnetic monochromatic waves in a material and the electron density of its scattering centers is studied for different ratios between the parameters of the primary radiation and the structure of the scattering crystalline materials. 相似文献
6.
It is shown that the spatial heterogeneity of the gas content and the disperson of sound in a bubble-containing medium may lead to deviation, focusing, and defocusing of sound beams.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 50, No. 3, pp. 385–390, March, 1986. 相似文献
7.
V. S. Borovkov V. N. Baikov A. A. Fomin 《Power Technology and Engineering (formerly Hydrotechnical Construction)》2005,39(3):147-150
Studies of the kinematics and dynamics of averaged flows in rivers with substantially differing water volumes are presented.__________Translated from Gidrotekhnicheskoe Stroitel’stvo, No. 4, April 2005, pp. 26 – 28. 相似文献
8.
A method is proposed for calculating for the stability of gas main line sections installed with an initial, upwardly convex, curvature. Conditions for the start of stability loss are formulated, and calculated dependences are obtained for determining the deflections and bending moments at the bulged sections.Sverdlovsk. Translated from Problemy Prochnosti, No. 9, pp. 118–121, September, 1989. 相似文献
9.
A new phenomenon is discovered, whereby self-organized microheterogeneity of a NaOH/KOH solid eutectic modifies the properties
of this proton conductor and thus changes the characteristics of a related Pd|NaOH/KOH|Pd heterostructure. The basic and applied
interest in this phenomenon is related both to a high proton conductivity of the NaOH/KOH eutectic (10–30 mS/cm, which is
several orders of magnitude (!) higher than the conductivity of NaOH and KOH alone) at moderate temperatures (360–450 K) and
to the special electrochemical properties of the heterostructure. The much greater conductivity in the indicated temperature
range and specific features of the low-frequency impedance spectrum are related to the formation of a microheterogeneous mixture
of NaOH and KOH crystals in the course of self-organization accompanying solidification of the eutectic. An analysis of the
temperature dependence of the eutectic heat capacity reveals the presence of chemically different microdomains of two types
with the characteristic volumes of ∼35 and 70 nm3. 相似文献
10.