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排序方式: 共有305条查询结果,搜索用时 31 毫秒
31.
Kosaku Inagaki Toshikazu Kato Tadashi Hiroshima Toshiyuki Sakai 《Pattern recognition》1984,17(1):85-108
MACSYM is a hierarchical parallel processing system for pattern understanding applications. It features event-driven parallel processing for knowledge-based understanding of document images. The system is composed of a master processor, slave processors and a large shared memory, and is equipped with versatile communication facilities. The parallel processing software system M.UM has been developed on MACSYM. It supplies a parallel processing language MacC, an extended version of C, and supports the programming for document image understanding. The Japanese newspaper layout understanding system EXPRESS is being developed on MACSYM. It analyzes a newspaper image and extracts articles in a few seconds. 相似文献
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Toshikazu Yano 《Nuclear Engineering and Design》1984,79(1):101-113
A high-response gamma-ray densitometer was developed for the measurement of void fraction caused by the flashing vaporization of high-pressure and -temperature water under an instantaneous pipe break accident of a boiling water reactor, BWR. The initial conditions of the water were 6.86 MPa in pressure and saturation temperature. In order to prove the reliability and accuracy, the calibration test by dropping the acrylic void simulators and the air injection test into the cold water filled in the pipe were conducted.The following results are obtained in the experiments: (1) the cone slit method is very useful to increase the measuring accuracy, (2) it is clearly observed that the apparent increase of the void fraction occurs after the rarefaction wave passes, (3) the first maximum of the void fraction occurs with some delay time after break. Secondly, the minimum void fraction concurs with the maximum pressure in the pressure recovering process. 相似文献
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Yew Wei Leong Toshikazu Umemura Hiroyuki Hamada 《Polymer Engineering and Science》2008,48(11):2147-2158
Specimens with weld lines were produced via conventional and film insert molding techniques using two types of materials as the substrate resin, i.e. a polycarbonate/acrylonitrile‐butadiene‐styrene (PC/ABS) blend and glass fiber‐filled polycarbonate (PC‐gf). The formation and morphology of the weld line region was assessed with and without the presence of 0.5‐mm‐thick PC film inserts. The weld line formation and characteristics were found to be dependent on the extent of interaction between the injected resin and the mold surface or the film insert. Better interfacial interaction between the substrate and film led to the distortion of the weld line orientation, which significantly enhanced the mechanical properties of the weld line. The incorporation of glass fibers into the substrate resin would usually reduce the resistance of the weld line towards tensile, flexural and impact loadings. However, with the attachment of film inserts, the mechanical properties of the weld line region have significantly improved, even with the presence of rigid fibers. Upon examination of tensile and impact fracture surfaces of film insert specimens, a unique orientation of fibers across the weld line (parallel to the flow direction and perpendicular to the weld line) could be observed at regions directly under the film. The combination of favorable properties from the unique fiber orientation and distortion of the weld line, as well as the ability of the film to effectively dissipate forces towards a larger area, have synergistically contributed towards the mechanical property enhancement of the weld line region in film insert moldings. POLYM. ENG. SCI., 2008. © 2008 Society of Plastics Engineers 相似文献
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We report on measurements of the tunneling conductance structures above the superconducting gap energy using YBa2Cu3O7 polycrystalline junctions. The measured second derivative data are reproducible among the junctions, and the intensities of the common structures at the biases of 37–38, 47–53, 67–77, and 94–95 mV are strong enough to be assigned. These structures are in agreement with those in the neutron phonon density of states in whole energy regions when the energies are measured from the gap edge of 26±1 meV. This correspondence indicates that the electron-phonon interaction contributes to the pairing mechanism of this superconductor. 相似文献
38.
Effects of lipase,lipoxygenase, peroxidase and free fatty acids on volatile compound found in boiled buckwheat noodles 总被引:1,自引:0,他引:1
Tatsuro Suzuki Sun‐Ju Kim Yuji Mukasa Toshikazu Morishita Takahiro Noda Shigenobu Takigawa Naoto Hashimoto Hiroaki Yamauchi Chie Matsuura‐Endo 《Journal of the science of food and agriculture》2010,90(7):1232-1237
BACKGROUND: Relationships between buckwheat (Fagopyrum esculentum Moench) flour lipase, lipoxygenase and peroxidase activity, along with levels of individual free fatty acids (FFAs) and levels of headspace volatile compounds of boiled buckwheat noodles, were investigated for 12 different buckwheat varieties. Enzyme activities and FFA levels in flour were correlated with their respective varietal arrays of boiled noodle headspace volatile compounds, measured by gas chromatography–mass spectrometry. RESULTS: The volatiles hexanal, tentative butanal, tentative 3‐methylbutanal and tentative 2‐methylbutanal showed significant positive correlation with one another, indicating that they may be generated through similar mechanisms. These important volatile components of buckwheat flavor were also positively correlated with lipase and/or peroxidase activity, indicating that enzymatic reactions are important in flavor generation in boiled buckwheat noodles. On the other hand, pentanal, which showed no significant correlation with any enzyme activity, showed a significant positive correlation to the levels of C18:2 and C18:3 FFAs, suggesting the existence of a ‘non‐enzymatic’ and/or ‘uncertain enzymatic pathway’ for flavor generation in boiled buckwheat noodles. CONCLUSION: Lipase and peroxidase in buckwheat flour are important for flavor generation of boiled buckwheat noodles. This information is important for increasing desirable flavor of buckwheat products as well as for selecting varieties with improved flavor. Copyright © 2010 Society of Chemical Industry 相似文献
39.
Toshikazu Takigawa Hidenori Kadoya Takashi Miki Takashi Yamamoto Toshiro Masuda 《Polymer》2006,47(13):4811-4815
Dynamic viscoelastic properties of a series of cyclic olefin copolymers have been investigated. The specimens differ in total molecular weight as well as molecular weight between entanglements. The angular frequency (ω) dependence curves of dynamic storage and loss moduli (G′ and G″, respectively) of the specimens have shown that G′ ∝ ω2 and G″ ∝ ω in the terminal region, and a plateau region at high ω. On the basis of the experimental results, the dependence of total molecular weight as well as molecular weight between entanglements has been examined for zero-shear viscosity (η0) and steady-state compliance (Je). It is shown that for the melts of the copolymers in the entangled regime, Mw being the weight-average molecular weight and Me the molecular weight between entanglements. The steady-state compliance Je for the melts scales with Me and Mw as . 相似文献
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