全文获取类型
收费全文 | 330篇 |
免费 | 9篇 |
国内免费 | 3篇 |
专业分类
化学 | 112篇 |
晶体学 | 9篇 |
力学 | 7篇 |
数学 | 64篇 |
物理学 | 150篇 |
出版年
2022年 | 3篇 |
2021年 | 4篇 |
2020年 | 6篇 |
2019年 | 5篇 |
2018年 | 5篇 |
2017年 | 7篇 |
2016年 | 13篇 |
2015年 | 7篇 |
2014年 | 9篇 |
2013年 | 20篇 |
2012年 | 17篇 |
2011年 | 33篇 |
2010年 | 30篇 |
2009年 | 13篇 |
2008年 | 18篇 |
2007年 | 17篇 |
2006年 | 26篇 |
2005年 | 6篇 |
2004年 | 14篇 |
2003年 | 10篇 |
2002年 | 11篇 |
2001年 | 6篇 |
2000年 | 2篇 |
1999年 | 1篇 |
1998年 | 1篇 |
1997年 | 3篇 |
1995年 | 5篇 |
1994年 | 3篇 |
1993年 | 5篇 |
1992年 | 1篇 |
1991年 | 2篇 |
1990年 | 1篇 |
1988年 | 4篇 |
1987年 | 1篇 |
1986年 | 2篇 |
1985年 | 4篇 |
1984年 | 4篇 |
1982年 | 5篇 |
1981年 | 3篇 |
1980年 | 1篇 |
1978年 | 4篇 |
1977年 | 1篇 |
1976年 | 2篇 |
1968年 | 1篇 |
1967年 | 1篇 |
1955年 | 1篇 |
1924年 | 1篇 |
1873年 | 1篇 |
1872年 | 2篇 |
排序方式: 共有342条查询结果,搜索用时 0 毫秒
91.
92.
J.M. Silveyra G. Vlasák D. Jani?kovi? 《Journal of magnetism and magnetic materials》2010,322(16):2350-1918
Magnetostriction, dilatation and calorimetric measurements were performed on FINEMET type as-quenched and heat treated ribbons. Nb was gradually replaced by Mo in order to study the influence of the refractory elements exchange on several magnetostriction parameters. The results could be correlated with magnetic and structural transformations throughout thermal treatments and assured that the whole series is suitable for technical applications. 相似文献
93.
Results of the studies of the properties like binding energy, the pair distribution function g(r), the structure factor S(q), specific heat at constant volume, velocity autocorrelation function (VACF), radial distribution function, self-diffusion
coefficient and coordination number of alkaline-earth metals (Be, Mg, Ca, Sr and Ba) near melting point using molecular dynamics
(MD) simulation technique using a pseudopotential proposed by us are presented in this article. Good agreement with the experiment
is achieved for the binding energy, pair distribution function and structure factor, and these results compare favourably
with the results obtained by other such calculations, showing the transferability of the pseudopotential used from solid to
liquid environment in the case of alkaline-earth metals. 相似文献
94.
We study rf spectroscopy of ultracold Fermi gas by going beyond the linear response in the field-matter interaction. Higher order perturbation theory allows virtual processes and energy conservation beyond the single-particle level. We formulate an effective higher order theory, which agrees quantitatively with experiments on the pairing gap and is consistent with the absence of the mean-field shift in the spin-flip experiment. 相似文献
95.
A general theoretical framework for the construction of maximally complex, yet analytically tractable mean-field theories for quantum-mechanical models is presented. These mean-field theories fulfil several strict conditions which are derived from analogous theories in classical statistical mechanics. In particular, they are thermodynamically consistent, conserving approximations and provide exact bounds on the free energy of the original model. The formalism is used to construct a mean-field theory for the Hubbard model in thestrong-coupling limit. 相似文献
96.
The phonon dispersion curves of some liquid metals, viz. Na (Z = 1), Mg (Z = 2), Al (Z = 3) and Pb (Z = 4), have been computed using our model potential. The charged hard sphere (CHS) reference system is applied to describe
the structural information. Our model potential along with CHS reference system is capable of explaining the phonon dispersion
relation for monovalent, divalent, trivalent and tetravalent liquid metals. 相似文献
97.
Jani Joensuu 《Nonlinear Analysis: Theory, Methods & Applications》2010,72(11):4316-4330
We calculate certain Orlicz-Sobolev capacities of an Euclidian n-dimensional ball. 相似文献
98.
Tadeusz Iwaniec Ngin-Tee Koh Leonid V. Kovalev Jani Onninen 《Inventiones Mathematicae》2011,186(3):667-707
The paper establishes the existence of homeomorphisms between two planar domains that minimize the Dirichlet energy. 相似文献
99.
Sobolev Spaces with Zero Boundary Values on Metric Spaces 总被引:6,自引:0,他引:6
We generalize the definition of the first order Sobolev spaces with zero boundary values to an arbitrary metric space endowed with a Borel regular measure. We show that many classical results extend to the metric setting. These include completeness, lattice properties and removable sets. 相似文献
100.
Jani D. B. Bhabhor Kiran Dadi Mohsin Doshi Sachindra Jotaniya P. V. Ravat Harish Bhatt Kumar 《Journal of Thermal Analysis and Calorimetry》2020,140(5):2011-2031
Journal of Thermal Analysis and Calorimetry - Solid desiccant-assisted cooling and dehumidification systems are becoming very popular nowadays for maintaining the required thermal comfort in... 相似文献