WAVE-FRONT

作品数：14被引量：17H指数：2
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相关领域：自动化与计算机技术更多>>
相关作者：张杰郑加安金展王鹏王兆华更多>>
相关机构：中国科学院更多>>
相关期刊：《Journal of Computer Science & Technology》《Frontiers of Information Technology & Electronic Engineering》《Science China(Physics,Mechanics & Astronomy)》《Science China(Technological Sciences)》更多>>
相关基金：国家自然科学基金国家重点基础研究发展计划中国博士后科学基金国家高技术研究发展计划更多>>
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The mechanism to reform dynamic performance of an elastic wave-front in a piezoelectric semiconductor by the wave-carrier interaction induced from static biasing fields
《Applied Mathematics and Mechanics(English Edition)》2023年第3期381-396,共16页Wanli YANG Jinxi LIU Yizhan YANG Yuantai HU 
Project supported by the National Natural Science Foundation of China(Nos.12232007,12102141,U21A20430,and 11972164);the Chinese Postdoctoral Science Foundation(No.2022M711252)。
The propagation of an elastic wave(EW)in a piezoelectric semiconductor(PSC)subjected to static biasing fields is investigated.It is found that there exist two coupling waves between electric field and charge carriers....
关键词：piezoelectric semiconductor(PSC) elastic wave(EW) carrier movement biasing field piezotronic device 
Generation of orbital angular momentum and focused beams with tri-layer medium metamaterial
《Chinese Physics B》2020年第10期233-237,共5页Zhi-Chao Sun Meng-Yao Yan Bi-Jun Xu 
Project supported by the Natural Science Foundation of Zhejiang Province, China (Grant No. LY20F050001)。
We propose a metal/dielectric tri-layer metamaterial for wavefront shaping. By arranging the element in an array with a constant phase gradient and irradiated it with a plane wave, focused and focused vortex beams can...
关键词：METAMATERIAL phase shift wave-front shaping orbital angular momentum 
Revisiting the Parallel Strategy for DOACROSS Loops被引量：1
《Journal of Computer Science & Technology》2019年第2期456-475,共20页Song Liu Yuan-Zhen Cui Nian-Jun Zou Wen-Hao Zhu Dong Zhang Wei-Guo Wu 
the National Key Research and Development Program of China under Grant No.2016YFB0201800;the National Natural Science Foundation of China under Grant Nos.91630206 and 91330117.
DOACROSS loops are significant parts in many important scientific and engineering applications,which are generally exploited pipeline/wave-front parallelism by loop transformations.However,previous work almost statica...
关键词：DOACROSS LOOP WAVE-FRONT PARALLELISM TILE size selection dynamic task ASSIGNMENT synchronization optimization 
A non-stationary channel model for 5G massive MIMO systems被引量：2
《Frontiers of Information Technology & Electronic Engineering》2017年第12期2101-2110,共10页Jian-qiao CHEN Zhi ZHANG Tian TANG Yu-zhen HUANG 
Project supported by the National Natural Science Foundation of China （No. 61421061） and the Huawei Innovation Research Program
We propose a novel channel model for massive multiple-input multiple-out （MIMO） communication systems that incorporate the spherical wave-front assumption and non-stationary properties of clusters on both the array ...
关键词：Massive MIMO Spherical wave-front assumption Non-stationary property Birth-death process Visibility region method 
GLOBAL EXISTENCE OF SOLUTIONS FOR A MULTI-PHASE FLOW: A BUBBLE IN A LIQUID TUBE AND RELATED CASES
《Acta Mathematica Scientia》2015年第4期832-854,共23页Debora AMADORI Paolo BAITI Andrea CORLI Edda DAL SANTO 
In this paper we study the problem of the global existence （in time） of weak entropic solutions to a system of three hyperbolic conservation laws, in one space dimension, for large initial data. The system models th...
关键词：hyperbolic systems of conservation laws phase transitions wave-front trackingalgorithm 
Simulation of Atmospheric Wave-Fronts with Turbulence Intermittency
《International Journal of Astronomy and Astrophysics》2014年第1期155-164,共10页Giorgio Sedmak 
A new extendable method for the simulation of atmospheric wave-fronts with turbulence intermittency is reported. The purpose is to generate simulations consistent with the distributions observed for the turbulence par...
关键词：Wave-Fronts SIMULATION Intermittency SEEING ATMOSPHERIC TURBULENCE 
Advanced Aperture Synthesis by Wave-Front Combination in Generalized Phase-Shifting Interferometry
《Chinese Physics Letters》2012年第8期89-92,共4页XU Xian-Feng CAI Lü-Zhong LU Guang-Can HAN Guo-Xia TIAN Yan-Jie ZHANG Qian JIAO Zhi-Yong 
Supported by the National Natural Science Foundation of China under Grant Nos 60977006,11004252 and 60777008;the Natural Science Foundation of Shandong Province under Grant Nos ZR2009GM016 and ZR2010AQ022.
An approach to improve the image quality by aperture synthesis in generalized phase-shifting interferometry is proposed.The aperture of the holographic system is enlarged by increasing the recording area to receive a ...
关键词：RECORDING synthesis HOLOGRAPHIC 
Analysis of a digital phase retrieval method for wave-front reconstruction被引量：1
《Chinese Optics Letters》2011年第8期1-4,共4页黄伟 刘德安 张雪洁 张燕 朱健强 
A phase retrieval algorithm which only needs to measure the intensity distribution at two positions to be effective is used to reconstruct the laser wave-front. Results are obtained from the phase retrieval algorithm ...
关键词：ALGORITHMS Potential flow 
Focal plane wave-front sensing algorithm for high-contrast imaging被引量：1
《Science China(Physics,Mechanics & Astronomy)》2009年第8期1284-1288,共5页DOU JiangPei1,2,3,REN DeQing1,2,4,ZHU YongTian1,2 & ZHANG Xi1,2,3 1 National Astronomical Observatories/Nanjing Institute of Astronomical Optics & Technology,Chinese Academy of Sciences,Nanjing 210042,China 2 Key Laboratory of Astronomical Optics & Technology,Nanjing Institute of Astronomical Optics & Technology,Chinese Academy of Sciences,Nanjing 210042,China 3 Graduate University of Chinese Academy of Sciences,Beijing 100049,China 4 Physics & Astronomy Department,California State University Northridge,18111 Nordhoff Street,Northridge,California 91330-8268,USA 
Supported by the National Natural Science Foundation of China (Grant No. 10873024)
High-contrast imaging provided by a coronagraph is critical for the direction imaging of the Earth-like planet orbiting its bright parent star.A major limitation for such direct imaging is the speckle noise that is in...
关键词：HIGH-CONTRAST IMAGING multi-image ALGORITHM SPECKLE nulling technique WAVE-FRONT SENSING 
Optical study on the vision correction and supernormal vision based on the wave-front aberrations of human eye被引量：1
《Science China(Technological Sciences)》2007年第3期257-267,共11页MU GuoGuang WANG ZhaoQi LIU YongJi QUAN Wei WANG Yang WANG Wei 
Supported by the National Natural Science Foundation of China (Grant No. 60438030);the Key Research Foundation of Scientific and Technical Committee of Tianjin City of China (Grant No. 033183711)
In this paper we present the recent research results in the field of vision correction and supernormal vision according to the actual measurements of the wave-front aberrations and the corneal surface topography,the c...
关键词：WAVE-FRONT ABERRATIONS of human eye VISION CORRECTION laser CORNEAL refractive SURGERY 
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