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Ohne Zusammenfassung 相似文献
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The ordering and antiphase boundary (APB)-like fault found in the α″-martensite of β-Ti shape memory alloys are studied. Long-range chemical ordering was not found, but APB-like faults were observed in every martensite plate studied by transmission electron microscopy. These faults have morphology similar to the APBs observed in ordered phases. The superlattice reflections observed in some previous works were a consequence of multiple diffractions. APB-like faults were not observed in the parent phase, leading to the conclusion that the faults were introduced by the martensite transformation. The fault took the form of a wavy tube running perpendicular to the habit plane. The fault was a ‘transformation-induced APB’ with an additional small displacement due to the pre-existing athermal ω phase. The displacement vector was determined to be [–3/50, ?23/50, 1/2]. Geometrical aspects of the formation of APB-like faults are also discussed. 相似文献
76.
G. Prasad T. Ishikawa M. Hosoda A. Sorimachi S. K. Sahoo N. Kavasi S. Tokonami M. Sugino S. Uchida 《Journal of Radioanalytical and Nuclear Chemistry》2012,292(3):1385-1390
Radon and thoron concentration in the outdoor environment are affected by the magnitude of the exhalation rate that can vary
diurnally and seasonally. This paper presents measurement results of radon and thoron exhalation rates and gamma-ray dose
rate in different season at same location points in Gunma Prefecture Japan. Exhalation rates were measured by the MSZ instrument
which is based on the accumulation method. Three measurement points Katashina Village, Midori City and Takasaki City were
selected for measurement. Soil water saturation and soil temperature were measured to investigate their relationship with
exhalation rate. The diurnal variation of exhalation rate may be correlated with soil temperature but no clear relationship
was found between them. The gamma-ray dose rate do not vary significantly at the same places even in different season. The
average radon exhalation rates were 11 ± 2, 2 ± 1, 5 ± 3 and 11 ± 4 mBq m−2 s−1 for spring, summer, autumn and winter, respectively. Those for thoron were 1,100 ± 100, 120 ± 30, 250 ± 80 and 860 ± 140 mBq m−2 s−1. Thus there was a variation of radon and thoron exhalation rate with different seasons. The radon and thoron exhalation rates
in the summer and autumn surveys are higher than those in the spring and winter surveys which were affected by rainfall. It
indicates that water saturation is an influential factor for radon and thoron exhalation rates. 相似文献
77.
Kaori Hosoda Takashi Furuta Akitomo Yokokawa Kazuo Ishii 《Analytical and bioanalytical chemistry》2010,397(4):1563-1572
Much attention has been paid to the metabolism and disposition of isoflavones daidzein (Dein) and genistein (Gein) with regard
to the prevention of several hormone-dependent diseases. Recent studies have reported that several conjugates as well as aglycones
may be biologically active or may be activated within target cells. However, the disposition of Dein and Gein in plasma is
still uncertain. This paper describes the identification and quantification of the highly polar metabolites, daidzein-7-glucuronide-4′-sulfate
(D-7G-4′S), genistein-7-glucuronide-4′-sulfate (G-7G-4′S), daidzein-4′,7-diglucuronide (D-4′,7-diG), and genistein-4′,7-diglucuronide
(G-4′,7-diG) in human plasma after dietary administration of kinako (baked soybean powder) to two healthy volunteers. The structure identification of these conjugated metabolites in plasma
was performed in comparison to the LC-ESI-MS and 600 MHz 1H-NMR spectral data of the chemically synthesized compounds. Furthermore, 16 isoflavone metabolites including D-7G-4′S, G-7G-4′S,
D-4′,7-diG, and G-4′,7-diG in plasma were simultaneously measured by a high-performance liquid chromatography–UV-diode-array
detector method combined with solid-phase extraction using an Oasis HLB cartridge. D-7G-4′S, G-7G-4′S and G-4′,7-diG were
found to be major metabolites of Dein and Gein in plasma, while intact aglycones were detected to be only ca. 2% in both subjects.
The findings suggest that the conjugated metabolites could be the key compounds responsible for pharmacological and medicinal
properties of isoflavones. 相似文献
78.
Yasutaka Omori Shinji Tokonami Tetsuo Ishikawa Sarata Kumar Sahoo Naofumi Akata Atsuyuki Sorimachi Masahiro Hosoda Chanis Pornnumpa Paitoon Wanabongse Hiromi Kudo Ye-Jing Hu Yong-Xiang Ao Xiao-Liang Li Kun Li Ying-Hua Fu Quan-Fu Sun Suminori Akiba 《Journal of Radioanalytical and Nuclear Chemistry》2015,306(1):317-323
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Sugimoto T Ono K Ando A Morita Y Hosoda K Ishii D 《The Journal of the Acoustical Society of America》2011,130(2):744-752
A semicylindrical acoustic transducer was constructed using a dielectric elastomer film with compliant electrodes that is an electroactive polymer composed of a polyurethane elastomer base and polyethylene dioxythiophene/polystyrene sulfonate electrodes. The use of this dielectric elastomer is advantageous because polyurethane is a common material that keeps its shape without any rigid frame. Because the dielectric elastomer films are essentially incompressible, electric-field-induced thickness changes are usually translated into much larger changes of the film area and side length. Here it is proposed that this change in side length can be utilized for sound generation when the film is bent into a semicylindrical shape. Accordingly, a semicylindrical acoustic transducer was fabricated using a film of thickness of 300 μm and its acoustic characteristics were investigated. The transducer can be operated at low applied voltages by reducing the film thickness, as long as the film is thick enough to generate sufficient force to overcome sound radiation impedance. The second harmonic distortion of the transducer was also investigated as a function of the ratio of the direct current bias voltage to the alternating current audio signal amplitude. 相似文献