全文获取类型
收费全文 | 78篇 |
免费 | 6篇 |
国内免费 | 1篇 |
专业分类
化学 | 42篇 |
力学 | 2篇 |
数学 | 20篇 |
物理学 | 21篇 |
出版年
2023年 | 1篇 |
2020年 | 1篇 |
2019年 | 3篇 |
2018年 | 2篇 |
2015年 | 7篇 |
2014年 | 2篇 |
2013年 | 4篇 |
2012年 | 4篇 |
2011年 | 6篇 |
2010年 | 3篇 |
2009年 | 7篇 |
2008年 | 6篇 |
2006年 | 2篇 |
2005年 | 1篇 |
2004年 | 1篇 |
2002年 | 1篇 |
1999年 | 2篇 |
1996年 | 1篇 |
1994年 | 4篇 |
1993年 | 4篇 |
1990年 | 1篇 |
1989年 | 2篇 |
1985年 | 1篇 |
1983年 | 3篇 |
1982年 | 1篇 |
1981年 | 1篇 |
1980年 | 2篇 |
1979年 | 3篇 |
1978年 | 2篇 |
1976年 | 1篇 |
1975年 | 1篇 |
1971年 | 2篇 |
1963年 | 1篇 |
1955年 | 2篇 |
排序方式: 共有85条查询结果,搜索用时 15 毫秒
81.
82.
A modified Holland's and three-phonon processes having different temperature dependences in the varius temperature ranges have been used to analyse the lattice thermal conductivity of GaAs. A very good agreement with the experimental results has been obtained 相似文献
83.
Raghupathi KR Azagarsamy MA Thayumanavan S 《Chemistry (Weinheim an der Bergstrasse, Germany)》2011,17(42):11752-11760
Stimuli sensitive, facially amphiphilic dendrimers have been synthesized and their enzyme-responsive nature has been determined with dual fluorescence responses of both covalently conjugated and non-covalently bound reporter units. These dual responses are correlated to ascertain the effect of enzymatic action on micellar aggregates and the consequential guest release. The release of the guest molecule is conveniently tuned by stabilizing the micellar aggregates through photochemical crosslinking of hydrophobic coumarin units. This photo-crosslinking is also utilized as a tool to investigate the mode of enzyme-substrate interaction in the context of aggregate-monomer equilibrium. 相似文献
84.
Nirogi R Kandikere V Mudigonda K Komarneni P Aleti R Boggavarapu R 《Biomedical chromatography : BMC》2008,22(2):214-222
A sensitive high-performance liquid chromatography-positive ion electrospray tandem mass spectrometry method was developed and validated for the quantification of sitagliptin, a DPP-4 inhibitor, in human plasma. Following liquid-liquid extraction, the analytes were separated using an isocratic mobile phase on a reverse-phase column and analyzed by MS/MS in the multiple reaction monitoring mode using the respective [M + H](+) ions, m/z 408-235 for sitagliptin and m/z 310-148 for the internal standard. The assay exhibited a linear dynamic range of 0.1-250 ng/mL for sitagliptin in human plasma. The lower limit of quantification was 0.1 ng/mL with a relative standard deviation of less than 6%. Acceptable precision and accuracy were obtained for concentrations over the standard curve range. A run time of 2.0 min for each sample made it possible to analyze more than 300 human plasma samples per day. The validated method has been successfully used to analyze human plasma samples for application in pharmacokinetic studies. 相似文献
85.