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浏览/检索结果: 共13条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序作者升序作者降序 Flow-Sediment Interaction and Formation Mechanism of Sediment Longitudinal Streaky Structures in Rough Channel Flows 期刊论文  OAI收割 JOURNAL OF HYDRAULIC ENGINEERING, 2025, 卷号: 151, 期号: 1, 页码: 17 作者:  Wang, Hao;  Kong, Xiangju;  Zhong, Qiang;  Yang, Feiqi;  Zhang, Chendi   |  收藏  |  浏览/下载：9/0  |  提交时间：2025/03/03 Longitudinal sediment streaks  Streamwise vortex  Movement characteristic  Bed structure  Formation mechanism   Observation of Post-Sunset Equatorial Plasma Bubbles with BDS Geostationary Satellites over South China 期刊论文  OAI收割 REMOTE SENSING, 2024, 卷号: 16, 期号: 18 作者:  Ma, Guanyi;  Li, Jinghua;  Fan, Jiangtao;  Wan, Qingtao;  Maruyama, Takashi   |  收藏  |  浏览/下载：14/0  |  提交时间：2024/10/14 equatorial plasma bubble (EPB)  temporal fluctuation of TEC (TFT)  longitudinal variability  wave-like structure   Unexpected Regional Zonal Structures in Low Latitude Ionosphere Call for a High Longitudinal Resolution of the Global Ionospheric Maps 期刊论文  OAI收割 REMOTE SENSING, 2022, 卷号: 14, 期号: 10, 页码: 19 作者:  Liu, Libo;  Yang, Yuyan;  Le, Huijun;  Chen, Yiding;  Zhang, Ruilong   |  收藏  |  浏览/下载：51/0  |  提交时间：2022/07/18 ionosphere  longitudinal structure  global navigation satellite system (GNSS)  total electron content (TEC)  global ionospheric map (GIM)   Interpretation of the Altitudinal Variation in the Martian Ionosphere Longitudinal Wave-3 Structure 期刊论文  OAI收割 JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2022, 卷号: 127, 期号: 1, 页码: 9 作者:  Wan, Weixing;  Zhou, Xu;  Yue, Xinan;  Wei, Yong;  Ding, Feng   |  收藏  |  浏览/下载：31/0  |  提交时间：2022/07/06 Martian ionosphere  longitudinal structure  A-I coupling  atmospheric tides  MGS  RO   A density functional study of zinc oxide elastic properties under high pressure 会议论文  OAI收割 Beijing, China, August 8, 2010 - August 12, 2010 作者:  Wang BB;  Zhao YP(赵亚溥)   |  收藏  |  浏览/下载：44/0  |  提交时间：2018/11/08 Biosensors  Blending  Chemical vapor deposition  Crystal symmetry  Crystals  Density functional theory  Elastic constants  Elasticity  II  VI semiconductors  Lattice constants  Local density approximation  Nanocomposites  Nanostructured materials  Zinc sulfide  Chemical vapor depositions (CVD)  Density  functional study  Elastic properties  Environment pressure  Generalized gradient approximations  Longitudinal direction  Multi  scale simulation  Zinc blend structure   Longitudinal patterns of spring-intermonsoon phytoplankton biomass, species compositions and size structure in the Bay of Bengal 期刊论文  OAI收割 ACTA OCEANOLOGICA SINICA, 2012, 卷号: 31, 期号: 2, 页码: 121-128 作者:  tanyh@scsio.ac.cn;  Li, G;  Ke, ZX;  Lin, Q;  Ni, GY   |  收藏  |  浏览/下载：30/0  |  提交时间：2013/08/28 Longitudinal Distributions  Phytoplankton  Size Structure  Bay Of Bengal   Structure buckling load interval analysis of supercavitating projectile (EI CONFERENCE) 会议论文  OAI收割 2011 9th International Conference on Reliability, Maintainability and Safety: Safety First, Reliability Primary, ICRMS'2011, June 12, 2011 - June 15, 2011, Guiyang, China 作者:  Zhou L. 收藏  |  浏览/下载：28/0  |  提交时间：2013/03/25 As a result of supercavitating projectiles with high underwater velocity  their structures undergo high longitudinal force. It is necessary to perform structure buckling load interval analysis because the uncertainty of structural own parameters should be considered. Critical buckling load of supercavitating projectiles is calculated by Galerkin method. The partial matrixes of critical buckling load implicit function to each uncertainty variable are deduced  and the interval of structure critical buckling load is calculated by interval analysis and convex model methods. Numerical results show that the nominal value  lower and upper bounds of critical buckling load increase with the increment of the ratio of base diameter to cavitator diameter. And the uncertainty degree of basic variables should be controlled as far as possible in the project for high reliability. 2011 IEEE.   Structure buckling reliability analysis of supercavitating projectile (EI CONFERENCE) 会议论文  OAI收割 2nd Annual Conference on Electrical and Control Engineering, ICECE 2011, September 16, 2011 - September 18, 2011, Yichang, China 作者:  Zhou L. 收藏  |  浏览/下载：15/0  |  提交时间：2013/03/25 Because the underwater velocity of supercavitating projectile is very high  its structure undergo high longitudinal force. It is necessary to perform structure buckling reliability analysis because the randomicity of structural own parameters and flow parameters should be considered. Critical buckling load of supercavitating projectile is calculated by Galerkin method. The partial matrixes of critical buckling load implicit function to each random variable are deduced  and structural buckling reliability index is calculated by limit step length iteration method. Numerical results show that the critical buckling load and structural buckling reliability index increase with the increase of the ratio of base diameter to cavitator diameter. And structural buckling reliability index increase with the decrease of velocity coefficient. 2011 IEEE.   A preliminary comparison of observations with MF radars in Wuhan and Yamagawa at 30-31 degrees N 期刊论文  OAI收割 Journal of Atmospheric and Solar-Terrestrial Physics, 2006, 卷号: 68, 期号: 9, 页码: 1036-1042 胡雄; Zhang, X. X.; Igarashi, K.; Zhang, D. Y. 收藏  |  浏览/下载：34/0  |  提交时间：2014/04/30 MF radar  the mesosphere and lower thermosphere  mean winds and tides  longitudinal dependences  lower thermosphere  wind measurements  tidal structure  diurnal tides  model  mesosphere  region   Noise characteristic of laser diode pumped orange-yellow solid-state laser by intracavity sum-frequency of KTP Phase matching II (EI CONFERENCE) 会议论文  OAI收割 ICO20: Lasers and Laser Technologies, August 21, 2005 - August 26, 2005, Changchun, China Tan H.; Gao L. 收藏  |  浏览/下载：19/0  |  提交时间：2013/03/25 The laser diode pumped Nd: YVO4 orange-yellow laser has been presented in this paper. The fundamental wavelengths of 1064nm and 1342nm oscillate simultaneous to generate the 593.5nm wavelength by intracavity sumfrequency of KTP nonlinear crystal phase matching II. The noise characteristic of laser output has been measured and analyzed in different pumping power. The relations between the amplitude noise of sum-frequency output and the longitudinal mode of fundamental frequency have been researched. The results show that the sum-frequency output is low noise if the one of fundamental wavelengths is single longitudinal mode. The experiments show that amplitude noise of intracavity sum-frequency laser is lower than that of intracavity doubled frequency laser with the same structure.