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91.
92.
D. Bianchi S. Yu. Dobrokhotov B. Tirozzi 《Russian Journal of Mathematical Physics》2008,15(4):427-446
In the present (second) part of the paper, we study the asymptotic behavior of the solution of the Cauchy problem for a nonhomogeneous
wave equation and also consider (instead of the wave equation) an equation with added fourth derivatives containing a small
parameter, i.e., include the effects of weak dispersion.
The research was supported by RFBR grant no. 08-01-00726 and by the scientific agreement between the Department of Physics
of the University of Rome “La Sapienza“ and the A. Ishlinski Institute for Problems in Mechanics of Russian Academy of Sciences,
Moscow. 相似文献
93.
Arrahli Abdellah Kherbeche Abdelhak Bianchi Daniel 《Research on Chemical Intermediates》2019,45(3):1421-1436
Research on Chemical Intermediates - FTIR spectroscopy and volumetric measurements are used to study the adsorption of CO (mainly 1% CO/He) in the temperature range 300–713 K on a... 相似文献
94.
Bazzicalupi C Bencini A Bianchi A Borri C Danesi A Garcia-España E Giorgi C Valtancoli B 《The Journal of organic chemistry》2008,73(21):8286-8295
The interaction of the biologically relevant anions deriving from the six pyridinedicarboxylic acids (H2PDC) with two macrocyclic receptors containing a pentamine chain and a bipyridine (1) or a phenanthroline (2) moiety, as well as with the aliphatic analogue [21]aneN7 (3), was studied by means of spectroscopic methods (UV-vis, NMR) and potentiometric titrations affording the stability constants of the adducts formed. All three receptors form stable complexes with the substrates thanks to the formation of several salt bridges and hydrogen bond contacts, as observed in the crystal structure of the H8[3(2,6-PDC)4] x H2O x 0.5 EtOH solid compound. Additional pi-stacking interactions between the aromatic moieties of substrates and receptors enhance the stability of complexes with 1 and 2. Compounds 1 and 2 show a marked selectivity toward 2,6-pyridinedicarboxylate anions. In particular, 1 is able to perform a very efficient recognition of these species in the presence of 2 and 3. Molecular modeling calculations suggested that such recognition ability of 1 can be ascribed to a superior structural and electrostatic complementarity with the substrate compared to 2 and 3. 相似文献
95.
Bazzicalupi C Bencini A Bianchi A Faggi E Giorgi C Santarelli S Valtancoli B 《Journal of the American Chemical Society》2008,130(8):2440-2441
96.
Dr. Ali Munaim Yousif Stefania Colarusso Elisabetta Bianchi 《European journal of organic chemistry》2023,26(12):e202300099
Peptide drug discovery often benefits from the large structural diversity permitted by unnatural amino acids (UAAs). Indeed, numerous approved peptide drugs include UAAs in their sequences. Therefore, innovative chemical approaches either to synthesize UAAs or to allow late-stage functionalization of peptides are emerging themes in peptide drug discovery. Thanks to the recent advances in deaminative strategies using alkylpyridiniums salts, often referred to as Katritzky salts, a variety of radical alkylation methods have been developed. In recent years the use of Katritzky salts have become popular in peptide chemistry due to their ease of preparation from a primary amine, which is a predominant functional group in amino acids. This review highlights the progress that has been made by using Katritzky salts in the synthesis of UAAs, late-stage peptide functionalization, and peptide macrocyclization. 相似文献
97.
In this paper we study the linear openness of the composition of set-valued maps carried out thanks to applications of Nadler’s fixed point theorem and Lim’s lemma. As a byproduct, we obtain the Lipschitz property of the solution map of a generalized parametric equation and of parametric approximate variational inequalities, as well. 相似文献
98.
99.
A new NIR method based on multivariate calibration for determination of ethanol in industrially packed wholemeal bread was developed and validated. GC-FID was used as reference method for the determination of actual ethanol concentration of different samples of wholemeal bread with proper content of added ethanol, ranging from 0 to 3.5% (w/w). Stepwise discriminant analysis was carried out on the NIR dataset, in order to reduce the number of original variables by selecting those that were able to discriminate between the samples of different ethanol concentrations. With the so selected variables a multivariate calibration model was then obtained by multiple linear regression. The prediction power of the linear model was optimized by a new “leave one out” method, so that the number of original variables resulted further reduced. 相似文献
100.