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991.
Shimomura Suguru Nishimura Takahiro Miyata Yuki Tate Naoya Ogura Yusuke Tanida Jun 《Optical Review》2020,27(2):264-269
Optical Review - Quantum dots (QDs) have a great potential for realizing information processing because of their signal-modulation capability based on energy transfer. We present a method for... 相似文献
992.
Nishimura Takahiro Takai Yusaku Shimojo Yu Hazama Hisanao Awazu Kunio 《Optical Review》2021,28(1):42-47
Optical Review - An accurate inversion technique in double integrating sphere (DIS) measurement is essential for determining the optical properties of biological tissue. Although there are several... 相似文献
993.
994.
Erika Toki Shiori Osaki Misato Nakamura Kazuki Tsuoka Nobutoshi Samejima Tetsuto Nakashima Rin Abe Takahiro Oyama Koichi Tsukiyama 《国际化学动力学杂志》2020,52(12):907-917
We conducted a simultaneous measurement of the potential of Cu2+, oxidation-reduction potential (ORP), and the chemiluminescence intensity in the luminol-H2O2-KSCN-CuSO4-NaOH system. Two types of chemiluminescence were identified: a very faint continuous chemiluminescence and a strong oscillating chemiluminescence. The correlation between the potential of Cu2+ and ORP was measured experimentally for the first time. The effect of the initial concentrations of Cu2+ and H2O2 on the overall chemiluminescence intensity and the oscillation frequency was investigated in detail. Time-dependent concentration variation of the chemical species existing in the reaction system was calculated using a Runge-Kutta method. Two elementary chemical reactions not considered previously were taken into consideration. The overall experimental behavior was well explainable with our simulation. Based upon the comparison of our simulation with the experiment, we proposed that the strong oscillating chemiluminescence was induced by the reaction of luminol with ·OS(O)CN. 相似文献
995.
996.
Kozawa Takahiro Kondo Akira Fukuyama Kayo Naito Makio Koga Hideyuki Shimo Yusuke Saito Toshiya Iba Hideki Inda Yasushi Oono Tomomi Katoh Takashi Nakajima Kousuke 《Journal of Solid State Electrochemistry》2019,23(4):1297-1302
Journal of Solid State Electrochemistry - All-solid-state Li batteries are suitable for the application of 5 V-class cathode materials that can provide high energy densities. However, it is hard to... 相似文献
997.
998.
Dr. Kenichi Kato Katsuto Onishi Koki Maeda Masafumi Yagyu Dr. Shixin Fa Prof. Dr. Takahiro Ichikawa Prof. Dr. Motohiro Mizuno Dr. Takahiro Kakuta Prof. Dr. Tada-aki Yamagishi Prof. Dr. Tomoki Ogoshi 《Chemistry (Weinheim an der Bergstrasse, Germany)》2021,27(21):6435-6439
Poly(ethylene oxide)s (PEOs) are useful polymers with good water solubility, biological compatibility, and commercial availability. PEOs with various end groups were threaded into pillar[5]arene rings in a mixture of water and methanol to afford pseudopolyrotaxanes. Corresponding polyrotaxanes were also constructed by capping COOH-terminated pseudopolyrotaxanes with bulky amines, in which multiple hydrogen bonds involving the pillar[5]arene OH groups were critically important to prevent dethreading. The number of threaded ring components could be rationally controlled in these materials, providing a simple and versatile method to tune the mechanical and thermal properties. Specifically, a polyrotaxane with a high-molecular-weight axle became elastic upon heating above the melting point of PEOs and exhibited temperature-dependent shape memory property because of the topological confinement and crosslinked hydrogen bonds. 相似文献
999.
1000.
Takahiro Kawashima Yuki Matsumoto Dr. Takuma Sato Dr. Yoichi M. A. Yamada Choji Kono Dr. Akihiro Tsurusaki Prof. Dr. Ken Kamikawa 《Chemistry (Weinheim an der Bergstrasse, Germany)》2020,26(58):13170-13176
An S-shaped double azahelicene ( 1 ) was synthesized in excellent yield by a palladium-catalyzed double dehydrogenative C−H coupling reaction. The stereochemistry of 1 was confirmed to be dl by single-crystal X-ray diffraction analysis. Selective formation of dl- 1 was attributed to the isomerization of the kinetically controlled product (meso- 1 ) into the more thermodynamically stable dl- 1 under the applied reaction conditions. dl- 1 can coordinate to palladium(II) in a bidentate trans-chelating fashion, which was confirmed by X-ray absorption fine structure (XAFS) as well as by X-ray photoelectron spectroscopy (XPS), diffuse reflectance (DR) UV/Vis, and far-infrared (FIR) absorption spectroscopy. Theoretical calculations of palladium complex 16 revealed a weak attractive interaction between palladium and carbon atoms on the central dimethoxynaphthalene core, which could facilitate a disproportionation between a trans-chelating (dl- 1 ) ⋅ PdCl2 complex and PdCl2 to form 16 . 相似文献