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361.
T. Sonoda M. Wada H. Tomita C. Sakamoto T. Takatsuka T. Noto H. Iimura Y. Matsuo T. Kubo T. Shinozuka T. Wakui H. Mita S. Naimi T. Furukawa Y. Itou P. Schury H. Miyatake S. Jeong H. Ishiyama Y. Watanabe Y. Hirayama 《Hyperfine Interactions》2013,216(1-3):103-107
We developed a prototype laser ionization gas cell with a beam extraction system. This device is for use of PArasitic Laser Ion-Source (PALIS), which will be implemented into RIKEN’s fragment separator, BigRIPS as a part of SLOWRI. Off-line resonant laser ionization for stable Co, Cu, Fe, Ni, Ti, Nb, Sn, In and Pd inside the gas cell, ion extraction and transport to the high-vacuum region via SPIG and QMS have been confirmed (Sonoda et al, Nucl Instrum Meth B 295:1, 2013). 相似文献
362.
This paper proposes two migration scenarios from China rin g networks to ASON mesh networks . In our quantitative analysis with ASON/GMPLS simulator, a subnetwork protection scheme achieved best balanced performance in resource utilization and restoration time. 相似文献
363.
Itaru Natori Hisaya Sato 《Journal of polymer science. Part A, Polymer chemistry》2006,44(11):3526-3537
The dehydrogenation of poly(1,3‐cyclohexadiene)–polystyrene binary block copolymers obtained by anionic copolymerization with alkyllithium/amine systems was investigated for the first time. The dehydrogenation of the poly(1,3‐cyclohexadiene) block, which was composed of 1,2‐cyclohexadiene (1,2‐CHD) and 1,4‐cyclohexadiene (1,4‐CHD) units, was strongly affected by the polymer chain structure. The existence of 1,2‐CHD units prevented the dehydrogenation of the poly(1,3‐cyclohexadiene) block in the binary block copolymer. The rate of dehydrogenation was fast on a long sequence of 1,4‐CHD units, whereas it was relatively slow for 1,2‐CHD/1,4‐CHD (≈1/1) unit sequences. The bonding of the polystyrene block to the polymer chain effectively improved not only the rate of dehydrogenation of a long sequence of 1,4‐CHD units but also that of the polymer chain with a high content of 1,2‐CHD units. The dehydrogenation of a poly(1,3‐cyclohexadiene) block containing a small number of 1,2‐CHD units progressed via step‐by‐step reactions. The dehydrogenation of a long sequence of 1,4‐CHD units proceeded as the first step. Subsequently, in the second step, the 1,2‐CHD/1,4‐CHD (≈1/1) unit sequences remaining in the polymer chain were dehydrogenated. © 2006 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 44: 3526–3537, 2006 相似文献
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366.
Akimi Serizawa Isao Kataoka Itaru Michiyoshi 《International Journal of Multiphase Flow》1975,2(3):221-233
This paper, the first in a series describing our work on the turbulence structure of air-water bubbly flow, describes the principles of measurement and specially developed electronic instrumentation for determining various important local parameters, and the rates of turbulent transport of heat and bubbles in air-water two-phase bubbly flow. These instruments indicate the phase distribution, the bubble velocity and its spectrum, the water velocity and the turbulent intensity, and the turbulent dispersion coefficient of bubbles. Brief discussions are also presented on the accuracy of these techniques. 相似文献
367.
Public and private health insurance plans face the question of whether to cover emerging genetic tests for cancer and other diseases. This paper outlines issues in the economic evaluation of new genetic tests, illustrating key methodological issues and policy implications with findings from a comprehensive and systematic review of the 14 full economic evaluations published over the past 5 years that have addressed both the costs and consequences of molecular genetic tests. Key questions for framing an evaluation include: whose viewpoint matters, which costs and consequences are relevant, and to which clinical alternatives should new genetic tests be compared? While economic evaluation research can inform coverage decisions about genetic tests, the coverage decision-making process must also inform economic researchers about the aims, context, and value systems within which genetic tests will be covered and practised. 相似文献
368.
Skeletal Rearrangement of O‐Propargylic Formaldoximes by a Gold‐Catalyzed Cyclization/Intermolecular Methylene Transfer Sequence
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Prof. Dr. Itaru Nakamura Shinya Gima Yu Kudo Prof. Dr. Masahiro Terada 《Angewandte Chemie (International ed. in English)》2015,54(24):7154-7157
Skeletal rearrangement of O‐propargylic formaldoximes, in the presence of gold catalysts, afforded 4‐methylene‐2‐isoxazolines in good to excellent yields by an intermolecular methylene transfer. In addition, the cascade reaction with maleimide in the presence of a gold catalyst afforded isoxazole derivatives by cyclization/methylene transfer and a subsequent ene reaction, whereas that using a copper catalyst gave oxazepines through a 2,3‐rearrangement. 相似文献
369.
High‐Resolution Crystal Structure of a Silver(I)–RNA Hybrid Duplex Containing Watson–Crick‐like CSilver(I)C Metallo‐Base Pairs
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Dr. Jiro Kondo Yoshinari Tada Dr. Takenori Dairaku Dr. Hisao Saneyoshi Dr. Itaru Okamoto Prof. Yoshiyuki Tanaka Prof. Akira Ono 《Angewandte Chemie (International ed. in English)》2015,54(45):13323-13326
Metallo‐base pairs have been extensively studied for applications in nucleic acid‐based nanodevices and genetic code expansion. Metallo‐base pairs composed of natural nucleobases are attractive because nanodevices containing natural metallo‐base pairs can be easily prepared from commercially available sources. Previously, we have reported a crystal structure of a DNA duplex containing T? HgII? T base pairs. Herein, we have determined a high‐resolution crystal structure of the second natural metallo‐base pair between pyrimidine bases C? AgI? C formed in an RNA duplex. One AgI occupies the center between two cytosines and forms a C? AgI? C base pair through N3? AgI? N3 linear coordination. The C? AgI? C base pair formation does not disturb the standard A‐form conformation of RNA. Since the C? AgI? C base pair is structurally similar to the canonical Watson–Crick base pairs, it can be a useful building block for structure‐based design and fabrication of nucleic acid‐based nanodevices. 相似文献
370.
Tomoko Ichibangase Itaru Yazawa Kazuhiro Imai 《Biomedical chromatography : BMC》2013,27(11):1520-1523
To achieve more efficient separation of intact proteins for proteomics applications, three columns of differing diameters (4.0, 4.6 and 6.0 mm internal diameter) were chosen for comparison and investigated to identify optimal conditions. The column with the largest diameter gave the largest peak capacity, showing the efficient separation of intact proteins, such as two protein standards, glutathione S‐transferase and β‐lactoglobulin. On the other hand, a low‐molecular‐weight compound was separated effectively on the smaller diameter column, demonstrating that the separation mechanism seems to differ between high‐ and low‐molecular‐weight compounds. Finally, using the 6.0 mm i.d. column, 680 protein peaks were observed in mouse liver extracts, demonstrating that a wider diameter separation column is effective for intact protein separations. Copyright © 2013 John Wiley & Sons, Ltd. 相似文献