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浏览/检索结果: 共13条，第1-10条 帮助 限定条件 内容类型：会议论文     条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择提交时间升序提交时间降序发表日期升序发表日期降序题名升序题名降序作者升序作者降序 Study on the Creep Characteristics of Sericite Schist in the Northwest of Hubei Province 会议论文  OAI收割 Zhuhai, PEOPLES R CHINA, JUN 29-30, 2017 作者:  Liu Shang Ge;  Li Zhen;  Yin Xiu Wen   |  收藏  |  浏览/下载：37/0  |  提交时间：2018/06/05 Schist  Creep  Saturated Softening  Time dependent deformation  Constitutive Model   A HIDDEN SEMI-MARKOV APPROACH FOR TIME-DEPENDENT RECOMMENDATION 会议论文  OAI收割 Taiwan, China, 2016-6-27 作者:  Zhang, Haidong;  Ni, Wancheng;  Li, Xin;  Yang, Yiping   |  收藏  |  浏览/下载：26/0  |  提交时间：2017/01/19 Hidden Semi-markov Model  Time Dependent Recommendation  Collaborative Filtering  Recommender System   Modeling the stress-strain properties of synthetic fiber mooring lines under cyclic loading 会议论文  OAI收割 24th International Ocean and Polar Engineering Conference, ISOPE 2014 Busan, Busan, Korea, Republic of, June 15, 2014 - June 20, 2014 作者:  Huang W;  Liu HX;  Hu C(胡存) 收藏  |  浏览/下载：19/0  |  提交时间：2017/05/27 Dynamic stiffness  Evolution  Loading history  Mooring line  Stress-strain property  Time dependent behavior   Collision of H+ + CH4 at 30 eV: A simulation study 会议论文  OAI收割 作者:  Gao, Cong-Zhang;  Wang, Jing;  Zhang, Feng-Shou   |  收藏  |  浏览/下载：12/0  |  提交时间：2018/08/20 Time-dependent density functional theory  Molecular dynamics  Electronic density  Scattering angle   The steric effect in the formation of protonated HCOOH 会议论文  OAI收割 作者:  Wang, Jing;  Gao, Cong-Zhang;  Zhang, Feng-Shou   |  收藏  |  浏览/下载：12/0  |  提交时间：2018/08/20 Time-dependent density-functional theory  Protonated formic acid  Steric effect   Analysis of a diffractive microlens using the finite-difference time-domain method (EI CONFERENCE) 会议论文  OAI收割 作者:  Liu Y.;  Liu H.;  Liu H.;  Liu H.;  Liu Y. 收藏  |  浏览/下载：22/0  |  提交时间：2013/03/25 The finite-difference time-domain (FDTD) method is used as rigorous electromagnetic analysis model to calculate the field for a diffractive microlens (DML). The FDTD is used for the entire solution rather than using a near- to far-field propagation method to obtain the far-field energy distribution  thus  all the results are vector based. We derived a formula to calculate the magnitude of electric field  which is time dependent and can be used to graphically show the light wave propagation and focusing process through a DML. Both the comparison and the integral methods are presented to obtain wave amplitude in full solution space  and the distribution of light energy behind a DML is illustrated based on the wave amplitude. The formula of diffractive efficiency of the DML is derived from a time-averaged Ponyting vector  which can indicate the propagation direction of light energy. Application of these formulations in the analysis of a DML example demonstrates the high accuracy and efficiency of our method. 2010 Society of Photo-Optical Instrumentation Engineers.   On a combined measurement technique of PIV and shadowgraph in environmental fluid dynamics 会议论文  OAI收割 International Conference on Experimental Mechanics 2008, ICEM 2008, Nanjing, China, November 8, 2008 - November 8, 2008 作者:  Wang T(王涛);  Yin ZH(尹兆华);  Hu WR(胡文瑞) 收藏  |  浏览/下载：12/0  |  提交时间：2017/07/14 Environmental fluids  Measurement system  Measurement techniques  Particle image velocimetries  PIV  Temperature variation  Time-dependent flow   Oscillatory flow at the onset of convection in two-layer Bénard-Marangoni system 会议论文  OAI收割 60th International Astronautical Congress 2009, IAC 2009, Daejeon, Korea, Republic of, October 12, 2009 - October 16, 2009 作者:  Kang Q(康琦);  Li LJ(李陆军);  Duan L(段俐);  Hu WR(胡文瑞) 收藏  |  浏览/下载：16/0  |  提交时间：2017/07/14 Critical temperature difference  Depth ratio  Marangoni  Marangoni convection  Onset of convection  Oscillatory flows  Particle image velocimetries  Structure change  Time-dependent  Two layer fluid  Two layers  Velocity field   Rearrangeable nonblocking 88 matrix optical switches based on extended banyan network (EI CONFERENCE) 会议论文  OAI收割 作者:  Zhang Y. 收藏  |  浏览/下载：16/0  |  提交时间：2013/03/25 Based on the CROSSBAR network (CN) and the BANYAN network (BN)  8 matrix optical switch  two new rearrangeable nonblocking constructions of extended BANYAN network (EBN) are proposed for implementing 88 optical matrix switch. The interconnection characteristics of these two types of rearrangeable nonblocking EBN were studied  optical insertion loss of 4.6 dB  and the logic program for driving switching units was provided. The calculated insertion loss was 3.3 dB for 88 optical matrix switch. Silica waveguide 88 matrix optical switch was designed and fabricated according to the calculated results. The silica waveguide propagation loss of 0.1 dB/cm and waveguide-fiber coupling loss of 0.5dB/point were measured. With the fabricated 87times  cross-talk of -38 dB  polarization dependent loss of 0.4 dB  averaged switching power of 1.6 W  and switching time of 1 ms were achieved. A basic agreement between experimental results and theoretical calculated values was achieved.   Effect of interface on luminescence properties in ZnO/MgZnO heterostructures (EI CONFERENCE) 会议论文  OAI收割 Wei Z. P.; Lu Y. M.; Shen D. Z.; Wu C. X.; Zhang Z. Z.; Zhao D. X.; Zhang J. Y.; Fan X. W. 收藏  |  浏览/下载：17/0  |  提交时间：2013/03/25 A set of ZnO/MgZnO heterostructures with well widths  Lw  varying from 2 to 20 nm has been grown by plasma-assisted molecular-beam epitaxy (P-MBE). We present a room-temperature (RT) study of the well-width-dependent photoluminescence (PL) spectra and carrier lifetimes in ZnO/MgZnO heterostructures. Bi-exponential process is seen at RT time-decay curves of the luminescence from the well layers. The fast process is from the recombination of the free exciton  while the slow process is attributing to the recombination of the localized exciton in the interface of ZnO and MgZnO. It is also confirmed from the PL peak shift of time-resolved PL spectra. With decreasing the well thickness  the fast process gradually increases and dominantly contributes to the PL spectrum due to the interface improvement. 2006 Elsevier B.V. All rights reserved.