全文获取类型
收费全文 | 210篇 |
免费 | 3篇 |
专业分类
化学 | 57篇 |
力学 | 6篇 |
数学 | 13篇 |
物理学 | 137篇 |
出版年
2018年 | 2篇 |
2016年 | 3篇 |
2015年 | 4篇 |
2013年 | 10篇 |
2012年 | 4篇 |
2011年 | 7篇 |
2010年 | 1篇 |
2008年 | 8篇 |
2007年 | 10篇 |
2006年 | 7篇 |
2005年 | 5篇 |
2004年 | 4篇 |
2003年 | 6篇 |
2002年 | 4篇 |
2001年 | 7篇 |
2000年 | 6篇 |
1999年 | 5篇 |
1998年 | 7篇 |
1997年 | 1篇 |
1996年 | 5篇 |
1995年 | 5篇 |
1994年 | 9篇 |
1993年 | 6篇 |
1992年 | 4篇 |
1991年 | 4篇 |
1990年 | 5篇 |
1989年 | 2篇 |
1988年 | 1篇 |
1987年 | 5篇 |
1986年 | 5篇 |
1985年 | 4篇 |
1984年 | 5篇 |
1983年 | 3篇 |
1982年 | 6篇 |
1981年 | 5篇 |
1980年 | 5篇 |
1979年 | 3篇 |
1978年 | 5篇 |
1977年 | 1篇 |
1976年 | 6篇 |
1975年 | 1篇 |
1974年 | 3篇 |
1973年 | 2篇 |
1972年 | 2篇 |
1971年 | 1篇 |
1970年 | 1篇 |
1969年 | 1篇 |
1967年 | 1篇 |
1966年 | 1篇 |
1938年 | 1篇 |
排序方式: 共有213条查询结果,搜索用时 15 毫秒
1.
A surface-mounted device assembly technique for small optics based on laser reflow soldering 总被引:4,自引:0,他引:4
L. Stauffer A. Würsch B. Gchter K. Siercks I. Verettas S. Rossopoulos R. Clavel 《Optics and Lasers in Engineering》2005,43(3-5):365
The three-dimensional miniaturized optical surface-mounted device (TRIMO-SMD) is a new flexible and automated assembly technique for small optical components (maximum diameter for a lens is 2 mm) based on laser reflow soldering technique. This technology can be compared to the electronic SMD technique but applied to micro-optical devices. We present some recent developments of TRIMO-SMD in its application to industrial products. 相似文献
2.
3.
Simulations in lattices of size 1003 at the critical point of the three-dimensional Glauber kinetic Ising model indicate that the 1935 Becker-Doring equation no longer works there: The growth rates decay in time. These conclusions confirm those in two dimensions. 相似文献
4.
5.
V. Zeman R. P. McEachran A. D. Stauffer 《Zeitschrift für Physik D Atoms, Molecules and Clusters》1994,30(2):145-148
The integrated and differential Stokes' parameters of the light emitted in the decay 6p 2 P 1/2,3/2→6s 2 S 1/2 fore-Cs scattering in the intermediate energy range are presented. These have been calculated using scattering amplitudes obtained by a relativistic distorted-wave method. 相似文献
6.
7.
8.
Fisher's droplet picture is used to define a “microscopic” surface tension for small droplets. The nucleation rate is then calculated. Excellent agreement between experiments and our calculations has been found for H2O, CH3OH, C2H5OH, NH3, C6H6, CHCl3 and CCl3F. 相似文献
9.
Monte Carlo simulations of the Edwards-Anderson-Ising spin glass with Gaussian distribution of nearest-neighbor exchange forces in four and five dimensions are performed to check the speculation thatd=4 is the lower critical dimensionality. In contrast to this expectation we find no qualitative difference at all to the results in two and three dimensions. We still find that on not too long time-scales there is an apparently rather well defined freezing temperatureT
f
, where the susceptibility has a cusp, and belowT
f
nonzero order parametersq, can be found as ford=2, 3. But even ford=5 the decay of the Edwards-Anderson order parameter belowT
f
is found to be consistent with a logarithmic variation over several decades of observation time. The possible interpretations of this result are discussed. Our data thus suggest that either there is no equilibrium phase transition in all these dimensions, or more likely that a phase transition exists for 2d5 but the properties of the ordered phase may be rather peculiar.Sonderforschungsbereich 125 Aachen-Jülich-Köln 相似文献
10.
H. P. Peters D. Stauffer H. P. Hölters K. Loewenich 《Zeitschrift für Physik B Condensed Matter》1979,34(4):399-408
Monte Carlo simulation and series expansion shows the radius of gyration of large clusters withs sites each to vary ass
with0.56 in two and0.47 in three dimensions at the percolation threshold, and with(d=2)0.65 and(d=3)0.53 for random lattice animals (zero concentration). Clusters up tos=100 were used. The perimeter of random animals approaches 2.8s for larges on the simple cubic lattice. Monte Carlo simulation of the Eden process (growing animals) up tos=5,000 indicates a systematic variation of about ±0.05 for the effective exponent=(s) and thus suggests that the true asymptotic exponents may be compatible with the predictions of hyper-scaling. 相似文献