全文获取类型
收费全文 | 1128篇 |
免费 | 33篇 |
国内免费 | 4篇 |
专业分类
化学 | 936篇 |
晶体学 | 7篇 |
力学 | 10篇 |
数学 | 31篇 |
物理学 | 181篇 |
出版年
2020年 | 13篇 |
2019年 | 14篇 |
2016年 | 11篇 |
2015年 | 20篇 |
2014年 | 22篇 |
2013年 | 33篇 |
2012年 | 47篇 |
2011年 | 76篇 |
2010年 | 32篇 |
2009年 | 27篇 |
2008年 | 57篇 |
2007年 | 66篇 |
2006年 | 64篇 |
2005年 | 61篇 |
2004年 | 46篇 |
2003年 | 39篇 |
2002年 | 42篇 |
2001年 | 20篇 |
2000年 | 27篇 |
1999年 | 5篇 |
1998年 | 13篇 |
1997年 | 7篇 |
1996年 | 10篇 |
1995年 | 12篇 |
1994年 | 13篇 |
1993年 | 16篇 |
1992年 | 22篇 |
1991年 | 17篇 |
1990年 | 11篇 |
1989年 | 22篇 |
1988年 | 10篇 |
1987年 | 10篇 |
1986年 | 15篇 |
1985年 | 20篇 |
1984年 | 19篇 |
1983年 | 13篇 |
1982年 | 21篇 |
1981年 | 19篇 |
1980年 | 18篇 |
1979年 | 13篇 |
1978年 | 10篇 |
1977年 | 13篇 |
1976年 | 14篇 |
1975年 | 15篇 |
1974年 | 13篇 |
1973年 | 8篇 |
1969年 | 7篇 |
1967年 | 10篇 |
1966年 | 7篇 |
1964年 | 5篇 |
排序方式: 共有1165条查询结果,搜索用时 203 毫秒
71.
Wen Piao Satoru Tsuda Dr. Yuji Tanaka Dr. Satoshi Maeda Dr. Fengyi Liu Shodai Takahashi Yu Kushida Dr. Toru Komatsu Dr. Tasuku Ueno Dr. Takuya Terai Prof. Toru Nakazawa Prof. Masanobu Uchiyama Prof. Keiji Morokuma Prof. Tetsuo Nagano Dr. Kenjiro Hanaoka 《Angewandte Chemie (International ed. in English)》2013,52(49):13028-13032
72.
73.
Plasmon‐Induced Water Splitting Using Metallic‐Nanoparticle‐Loaded Photocatalysts and Photoelectrodes
下载免费PDF全文
![点击此处可从《Chemphyschem》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Prof. Dr. Kosei Ueno Prof. Dr. Tomoya Oshikiri Prof. Dr. Hiroaki Misawa 《Chemphyschem》2016,17(2):194-194
The front cover artwork is provided by the group of Prof. Hiroaki Misawa (Hokkaido University, Japan, and National Chiao Tung University, Taiwan). The image shows a plasmon‐induced water‐splitting system, which can collect hydrogen and oxygen separately and employs a semiconductor substrate. Read the full text of the Review at 10.1002/cphc.201500761 相似文献
74.
Asymmetric cross-coupling of dinaphtho[2,1-b:1',2'-d]thiophene with ArMgBr (Ar = Ph, 4-MeC6H4, 4-MeOC6H4) proceeded with high enantioselectivity in THF at 20 degrees C in the presence of 3 mol % of a nickel catalyst generated from Ni(cod)2 and a chiral oxazoline-phosphine ligand to give high yields of axially chiral 2-mercapto-2'-aryl-1,1'-binaphthyls, whose enantiomeric excesses are over 93%. The mercapto group in the chiral binaphthyl was converted into iodo, boryl, and phosphino groups without racemization. 相似文献
75.
Sueo Ueno 《Journal of Mathematical Analysis and Applications》1976,54(2):538-546
It is well known in the field of radiative transfer that Sobolev was the first to introduce the resolvent into Milne's integral equation with a displacement kernel. Thereafter it was shown that the resolvent plays an important role in the theory of formation of spectral lines. In the theory of line-transfer problems, the kernel representation in Milne's integral equation has been used to provide an approximate solution in a manner similar to that given by the discrete ordinales method.In this paper, by means of invariant imbedding we show how to determine an exact solution of a Milne-type integral equation with a degenerate kernel, whose form is more general than the Pincherle-Gourast kernel. A Cauchy system for the resolvent is expressed in terms of generalized Sobolev's Φ- and Ψ-functions, which are computed by solving a system of differential equations for auxiliary functions. Furthermore, these functions are expressed in terms of components of the kernel representation. 相似文献
76.
77.
S. Ueno 《Journal of Quantitative Spectroscopy & Radiative Transfer》1974,14(4):245-249
Recently, determination of the resolvent kernel of Milne's integral equation for a spherical, isotropically-scattering medium with internal sources has been made by several authors (cf. Heaslet and Warming;(1)Nagirner;(2)Wilson and Sen(3)). In this paper, it is shown how to compute the resolvent kernel of the above Milne's equation in terms of the modified Sobolev's Φ-function, which is reduced to the angular integration of the source function in the diffuse radiation field by a finite slab. In other words, once the X- and Y-functions of a slab with twice the optical radius of the sphere have been computed and a Cauchy system for the source function has been solved, the resolvent kernel under consideration can be determined by integration of the modified Sobolev Φ-function. 相似文献
78.
Kinetic energy spectra of secondary electrons emitted from liquid and solid high-density polyethylene owing to low-energy electron impacts are measured as a function of temperature. It is found that the spectral features associated with high density-of-states parts of the conduction band smear out with increasing temperature, and disappear completely above the melting point. The smearing out of the conduction band structure is explained as a result of breakdown of the inter-molecular and/or the intra-molecular symmetry induced by thermal excitations of the molecular vibrations. 相似文献
79.
Shigeyuki Mayama Toshikazu Tani Tamio Ueno Kazumasa Hirabayashi Tadakazu Nakashima Hiroshi Fukami Yukio Mizuno Hiroshi Irie 《Tetrahedron letters》1981,22(22):2103-2106
The major phytoalexin from oat leaves has been identified as 2-[2-(4-hydroxyphenyDethenyl] -6-hydroxy-4H-3,1-benzoxazin-4-one (). 相似文献
80.