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浏览/检索结果: 共9条,第1-9条 帮助

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Model-predicted brain temperature computational imaging by multimodal noninvasive functional neuromonitoring of cerebral oxygen metabolism and hemodynamics: MRI-derived and clinical validation 期刊论文  OAI收割
JOURNAL OF CEREBRAL BLOOD FLOW AND METABOLISM, 2024, 页码: 17
作者:  
Jiang, Miaowen;  Cao, Fuzhi;  Zhang, Qihan;  Qi, Zhengfei;  Gao, Yuan
  |  收藏  |  浏览/下载:13/0  |  提交时间:2024/09/24
Microbial community assembly and metabolic function in top layers of slow sand filters for drinking water production 期刊论文  OAI收割
JOURNAL OF CLEANER PRODUCTION, 2021, 卷号: 294, 页码: -
作者:  
Chen, Lihua;  Zhai, Yujia;  van der Mark, Ed;  Liu, Gang;  van der Meer, Walter
  |  收藏  |  浏览/下载:10/0  |  提交时间:2021/12/23
Study of satellite shadow function model considering the overlapping parts of Earth shadow and Moon shadow and its application to GPS satellite orbit determination 期刊论文  OAI收割
ADVANCES IN SPACE RESEARCH, 2019, 卷号: 63, 期号: 9, 页码: 2912-2929
作者:  
Zhang, Rui;  Tu, Rui;  Zhang, Pengfei;  Liu, Jinhai;  Lu, Xiaochun
  |  收藏  |  浏览/下载:16/0  |  提交时间:2021/11/29
Correlations between neutrons and protons near the Fermi surface and Q(alpha) of superheavy nuclei 期刊论文  OAI收割
PHYSICAL REVIEW C, 2016, 卷号: 93, 期号: 1, 页码: 14302
作者:  
Wang, N;  Liu, M;  Wu, XZ;  Meng, J;  Wang, N (reprint author), Guangxi Normal Univ, Dept Phys, Guilin 541004, Peoples R China.
  |  收藏  |  浏览/下载:42/0  |  提交时间:2017/10/13
The Shell Corrections And Shell Gaps In Nuclei Are Systematically Studied With The Latest Weizsacker-skyrme  (Ws4) Mass Model. We Find That Most Of Asymmetric Nuclei With (Sub) Shell Closures Locate Along The Shell Stability  Line (Ssl)  n=1.37z+13.5  Which Might Be Due To a Strong Correlation Between Neutrons And proTons Near  The Fermi Surface. The Double Magicity Of Nuclei Si-46 And Ni-78 Is Predicted According To The Corresponding  Shell Gaps  Shell Corrections  And Nuclear Deformations. The Unmeasured Superheavy Nuclei  (296)118 And (298)120  With Relatively Large Shell Gaps And Shell Corrections  Also Locate Along The Ssl  Whereas The Traditional Magic  Nucleus (298)F1 Evidently Deviates From The Line. The Alpha-decay Energies Of Superheavy Nuclei With Z=113-126  Are Simultaneously Investigated By Using The Ws4 Model togeTher With The Radial Basis Function Corrections. For  Superheavy Nuclei With Large Shell Corrections  The Smallest Alpha-decay Energy For Elements Z=116  117  And 118  In Their Isotope chaIns LocAtes At N=178 rAther Than 184.  
Preliminary result for rupture process of Apr. 20, 2013, Lushan Earthquake, Sichuan, China 期刊论文  OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2013, 卷号: 56, 期号: 4, 页码: 1412-1417
作者:  
Wang Wei-Min;  Hao Jin-Lai;  Yao Zhen-Xing
  |  收藏  |  浏览/下载:23/0  |  提交时间:2018/09/26
Experiment analysis of CO2 laser disturbance on long-wave infrared HgCdTe detector (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electric Information and Control Engineering, ICEICE 2011, April 15, 2011 - April 17, 2011, Wuhan, China
作者:  
Wang S.-W.
收藏  |  浏览/下载:24/0  |  提交时间:2013/03/25
Theoretical analysis and experimental study were carried out on the high-power CO2 laser disturbance to long-wave infrared (LWIR) HgCdTe detector in this paper. Based on the practical parameters of experiment  the theoretical model of temperature-rise is adopted to calculate the variation of the temperature with the time and the power of laser for laser irradiation on the detector. After that  the damage threshold is 110W/cm2. This experimental phenomenon well agrees with the results predicted by the theoretical calculation. The conclusions have a certain reference value for the laser defense of detector. 2011 IEEE.  the high-power laser damage mechanism to LWIR detector is discussed  and compares with the experimental results of laser irradiation the detector on the distance of 15km. The theoretical and experimental results demonstrate that the interference threshold of the detector is 20.5W/cm 2  
Restoration of an atmospherically blurred image based on physical model fusion approach (EI CONFERENCE) 会议论文  OAI收割
2010 IEEE 10th International Conference on Signal Processing, ICSP2010, October 24, 2010 - October 28, 2010, Beijing, China
作者:  
Wang Y.;  Li J.;  Li J.;  Li J.;  Wang Y.
收藏  |  浏览/下载:26/0  |  提交时间:2013/03/25
This paper proposes a new restoration method  only using the single image information  combining atmospheric physical model with fusion techniques to reduce the degradation of the image contrast in bad weather conditions caused by atmospheric aerosols  such as haze and fog. The basic idea of this method is to utilize physics-based model method instead of multisensors to generate a serial of virtual images  and then to fuse those virtual images into a high contrast image based on the wavelet fusion technique. In contrast to previous methods  our restoration technique is not only independent on predicted structure  distributions of scene reflectance  or detailed knowledge about the particular weather condition  but also adapt to the situation without a reference image or images with moving objects captured by a video camera. Experiments on different poorcontrast images demonstrate the availability of the proposed method in case of restoring the atmospherically blurred images. 2010 IEEE.  
Deriving the aquatic predicted no-effect concentrations (PNECs) of three chlorophenols for the Taihu Lake, China 期刊论文  OAI收割
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING, 2010, 卷号: 45, 期号: 14, 页码: 1823-1831
Lei, Bing L.; Huang, Sheng B.; Jin, Xiao W.; Wang, Zijian
收藏  |  浏览/下载:30/0  |  提交时间:2015/07/31
Theoretical analysis of 980nm high power Vertical External-cavity Surface-emitting Semiconductor Laser (VECSEL) (EI CONFERENCE) 会议论文  OAI收割
ICO20: Lasers and Laser Technologies, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Wang L.-J.;  Wang L.-J.;  Ning Y.-Q.;  Qin L.
收藏  |  浏览/下载:23/0  |  提交时间:2013/03/25
By using bottom-emitting structure  we will develop laser diode (LD) pumped 980 nm VECSEL with active region of InGaAs/GaAsP/AlGaAs system. Because the thickness of barrier layer and absorption layer exceed that of quantum well  single well approximation model (KP method) can be used to calculate the band structure of VECSEL. The Schrodinger equation of finite deep potential well can be adopted to calculate the energy level structures of electron  heavy and light holes. According to the transition selection rule  we theoretically obtained the emitting wavelength of VECSEL and calculated quasi-Femi energy of valence band and conduction band based on the analysis of energy level structure of electron and holes. By analyzing the gain of strained quantum wells  we calculated the gain of VECSEL using transition matrix elements of electron  heavy and light holes. We give out the threshold gain  output power and other characteristic parameters. We will study the configuration of VECSEL and pumping scheme. We designed external cavity mirror  active region and bottom-emitting structure. A LD-pumped vertical external cavity surface-emitting laser whose output power is greater than 1.0 W can be predicted.