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浏览/检索结果: 共21条，第1-10条 帮助

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Adaptive parameter-related implementation of the free surface in elastic anisotropic full-waveform modeling 期刊论文  OAI收割
JOURNAL OF APPLIED GEOPHYSICS, 2022, 卷号: 206, 页码: 17
作者:  Zhou, Xuhui;  Cao, Jian;  Wang, Guangfu;  Sun, Jianfang;  Huo, Shoudong
  |  收藏  |  浏览/下载：19/0  |  提交时间：2023/04/03
Three-dimensional anisotropy modelling and simulation of gas hydrate borehole-to-surface responses 期刊论文  OAI收割
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING, 2022, 卷号: 106, 页码: 19
作者:  Omisore, Busayo Oreoluwa;  Fayemi, Olalekan;  Brantson, Eric Thompson;  Jin, Sheng;  Ansah, Ebenezer
  |  收藏  |  浏览/下载：23/0  |  提交时间：2023/04/03
A Nonbalanced Staggered-Grid FDTD Scheme for the First-Order Elastic-Wave Extrapolation and Reverse-Time Migration 期刊论文  OAI收割
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING, 2022, 卷号: 15, 页码: 4772-4781
作者:  Liang, Wenquan;  Chen, Guoxin;  Wang, Yanfei;  Cao, Jingjie;  Chen, Jinxin
  |  收藏  |  浏览/下载：51/0  |  提交时间：2022/07/18
Discrete-element investigation of granular debris-flow runup against slit structures 会议论文  OAI收割
Golden, CO, June 10, 2019 - June 13, 2019
作者:  Du, Junhan;  Zhou, Gordon G.D.
  |  收藏  |  浏览/下载：39/0  |  提交时间：2020/03/10
Parametric Amplification in a Superconducting Microstrip Transmission Line 期刊论文  OAI收割
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2016, 卷号: 26, 期号: 6
作者:  Shan, Wenlei;  Sekimoto, Yutaro;  Noguchi, Takashi
收藏  |  浏览/下载：30/0  |  提交时间：2016/09/27
Frequency multiscale full-waveform velocity inversion 期刊论文  OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2015, 卷号: 58, 期号: 1, 页码: 216-228
作者:  Zhang WenSheng;  Luo Jia;  Teng JiWen
  |  收藏  |  浏览/下载：31/0  |  提交时间：2021/01/14
A STABILIZED EQUAL-ORDER FINITE VOLUME METHOD FOR THE STOKES EQUATIONS 期刊论文  OAI收割
JOURNAL OF COMPUTATIONAL MATHEMATICS, 2012, 卷号: 30, 期号: 6, 页码: 615-628
作者:  Tian Wanfu;  Song Liqiu;  Li Yonghai
  |  收藏  |  浏览/下载：24/0  |  提交时间：2021/02/02
Weighted finite difference methods for a class of space fractional partial differential equations with variable coefficients 期刊论文  OAI收割
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS, 2010, 卷号: 233, 期号: 8, 页码: 1905-1914
作者:  Ding, Zhiqing;  Xiao, Aiguo;  Li, Min
  |  收藏  |  浏览/下载：27/0  |  提交时间：2018/07/30
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：27/0  |  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.  
Rigorous vector analysis of diffractive microlens by using of finitedifference time-domain method (EI CONFERENCE) 会议论文  OAI收割
2009 International Conference on Optical Instruments and Technology, OIT 2009, October 19, 2009 - October 22, 2009, Shanghai, China
作者:  Liu Y.;  Liu H.;  Liu H.;  Liu H.;  Liu Y.
收藏  |  浏览/下载：32/0  |  提交时间：2013/03/25
We use finite difference time domain (FDFD) method as rigorous vector analysis model to simulate the focusing process of diffractive microlens (DML). Differing with most analysis model which the near field distributions are calculated by FDTD and then far field are obtained by using of propagation method  we obtain the fields in whole computational space by using of FDTD only. The advantages are that all the results are vector based and the computational time is saved greatly. In this paper  we present two methods to obtain wave amplitude  one is comparison method  and the other is integral method. Depending on wave amplitude in the whole computational space  one can conveniently obtain distributions of electric field intensity and calculate the time-average Poynting vector. We also present the formulation for calculating diffractive efficiency of DML based on time-average Poynting vector which denotes energy flow. As demonstration  a DML is analyzed by using of these algorithms. The time depended graphic results of FDTD show the process of wave propagation. The distribution of electric field intensity illustrates the focusing of the normal incident light. The focus pattern in the focal plane is also show. The diffractive efficiency of the DML is calculated by using of the energy flow method in this paper. The results show the high accuracy and efficiency of the model. 2009 SPIE.