全文获取类型
收费全文 | 91篇 |
免费 | 2篇 |
国内免费 | 5篇 |
专业分类
化学 | 38篇 |
晶体学 | 2篇 |
数学 | 44篇 |
物理学 | 14篇 |
出版年
2023年 | 1篇 |
2022年 | 2篇 |
2021年 | 1篇 |
2020年 | 1篇 |
2019年 | 1篇 |
2018年 | 3篇 |
2017年 | 2篇 |
2015年 | 3篇 |
2014年 | 3篇 |
2013年 | 2篇 |
2012年 | 5篇 |
2011年 | 7篇 |
2010年 | 4篇 |
2009年 | 3篇 |
2008年 | 5篇 |
2007年 | 6篇 |
2006年 | 5篇 |
2005年 | 3篇 |
2004年 | 4篇 |
2003年 | 1篇 |
2002年 | 4篇 |
2001年 | 4篇 |
2000年 | 2篇 |
1999年 | 4篇 |
1998年 | 2篇 |
1997年 | 1篇 |
1996年 | 4篇 |
1995年 | 1篇 |
1994年 | 2篇 |
1993年 | 2篇 |
1992年 | 1篇 |
1991年 | 1篇 |
1985年 | 2篇 |
1984年 | 1篇 |
1982年 | 1篇 |
1976年 | 1篇 |
1974年 | 3篇 |
排序方式: 共有98条查询结果,搜索用时 15 毫秒
31.
A natural interpolation problem in the cone of positive harmonicfunctions is considered and the corresponding interpolatingsequences are geometrically described. 相似文献
32.
An ultraviolet high-performance liquid chromatography (HPLC) method was developed to analyze anidulafungin in human plasma and saline. A reversed-phase column was used with a UV detector set at 310 nm. The mobile phase consisted of methanol and ammonium phosphate buffer at a flow rate of 1 mL/min. Micafungin was used as the internal standard. Both standard curves were linear over a range of 1 to 10 μg/mL. The intra-assay relative standard deviations (RSD) for plasma and saline matrices were 1.60-1.81% and 1.96-3.70%, respectively. The inter-assay RSD for plasma and saline matrices were 2.41-7.25% and 1.31-3.16%, respectively. This method successfully recapitulated anidulafungin plasma concentrations previously analyzed by HPLC-tandem mass spectrometry with precision and accuracy of 6.9% and 1.59%, respectively. 相似文献
33.
de Almeida MN Guimarães VM Bischoff KM Falkoski DL Pereira OL Gonçalves DS de Rezende ST 《Applied biochemistry and biotechnology》2011,165(2):594-610
The aim of this work was to have cellulase activity and hemicellulase activity screenings of endophyte Acremonium species (Acremonium zeae EA0802 and Acremonium sp. EA0810). Both fungi were cultivated in submerged culture (SC) containing l-arabinose, d-xylose, oat spelt xylan, sugarcane bagasse, or corn straw as carbon source. In solid-state fermentation, it was tested as
carbon source sugarcane bagasse or corn straw. The highest FPase, endoglucanase, and xylanase activities were produced by
Acremonium sp. EA0810 cultivated in SC containing sugarcane bagasse as a carbon source. The highest β-glucosidase activity was produced
by Acremonium sp. EA0810 cultivated in SC using d-xylose as carbon source. A. zeae EA0802 has highest α-arabinofuranosidase and α-galactosidase activities in SC using xylan as a carbon source. FPase, endoglucanase,
β-glucosidase, and xylanase from Acremonium sp. EA0810 has optimum pH and temperatures of 6.0, 55 °C; 5.0, 70 °C; 4.5, 60 °C; and 6.5, 50 °C, respectively. α-Arabinofuranosidase
and α-galactosidase from A. zeae EA0802 has optimum pH and temperatures of 5.0, 60 °C and 4.5, 45 °C, respectively. It was analyzed the application of Acremonium sp. EA0810 to hydrolyze sugarcane bagasse, and it was achieved 63% of conversion into reducing sugar and 42% of conversion
into glucose. 相似文献
34.
35.
Claudio PalomoNicolau 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2011,123(28):6331-6332
36.
I. F. Nicolau 《无机化学与普通化学杂志》1974,407(1):83-97
A thermodynamic computation of the chemical equilibria that participate to the transport of InP by vapor phase chemical reactions is made for the system In/P/X/H (X = I, Cl) at 1000 and 900°K. The partial pressure of the InX3 species is found to be negligible. A thermodynamic analysis of the chemical reactions involved in the transport of various impurities (Si, Ge, Sn, Pb, Zn, Cd, Mg, Cu, Mn, Al, Ga, S, Se and Te) during the InP epitaxial growth by the close-spaced method is presented. A large transport probability is found for S and Ga. No transport possibilities are found for the elements: Si, Zn, Cd, Mg, Cu, Se and Te. Transport possibilities through various chemical reactions are found for Ge, Sn, Pb, Mn and Al. 相似文献
37.
38.
Werner Roser Nicolau Beckmann Ulrich Wiesmann Joachim Seelig 《Magnetic resonance imaging》1996,14(10):1217-1220
Using natural-abundance 13C magnetic resonance spectroscopy (MRS) on a conventional whole-body system operating at 1.5 T, the absolute hepatic glycogen concentration was noninvasively determined in a patient with type Ia glycogen storage disease. Furthermore, to assess the reliability of glycogen determination, hepatic glycogen content was assessed after an overnight fasting period in 35 healthy volunteers divided into two groups, one with a carbohydrate-rich diet, the other without any particular dietary preparation. In the patient, the glycogen concentration was found to be 458 mM. In the healthy subjects, average glycogen concentrations were 229 ± 34 mM (mean ± standard deviation) and 257 ± 31 mM for the group without and with dietary preparation, respectively. The 13C-MRS results are in agreement with those obtained by conventional liver biopsy. 13C MRS in natural abundance may thus serve as a straightforward, fast, and noninvasive tool for quantification of the liver glycogen content in patients. 相似文献
39.
40.