中国科学院机构知识库网格系统: 检索

Application of Fibonacci heap to fast marching method 期刊论文 OAI收割
OPEN PHYSICS, 2021, 卷号: 19, 期号: 1, 页码: 281-284
作者: Meng, Fanchang; Liu, Mingchen

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收藏 | 浏览/下载：26/0 | 提交时间：2021/10/21

fast marching method Fibonacci heap sort travel time calculation seismic wave propagation eikonal equation

原地生成宇宙成因核素测年技术思考四核素浓度年份化数列累加方法探讨 期刊论文 OAI收割
地质与勘探, 2020, 卷号: 56, 期号: 1, 页码: 182-189
作者: 黄费新; 李岩; 程杨; 李广伟; 董国成

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收藏 | 浏览/下载：24/0 | 提交时间：2020/06/17

in situ cosmogenic nuclide annual decomposition of concentration calculation equation erosion rate 原地生成宇宙成因核素浓度年份分解计算等式侵蚀速率

Hard-photon production and its correlation with intermediate-mass fragments in a framework of a quantum molecular dynamics model 期刊论文 OAI收割
PHYSICAL REVIEW C, 2020, 卷号: 102, 期号: 2, 页码: -
作者: Wang, SS; Ma, YG; Cao, XG; Fang, DQ; Ma, CW

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收藏 | 浏览/下载：65/0 | 提交时间：2021/09/06

HEAVY-ION COLLISIONS ENERGY GAMMA-RAYS MICROSCOPIC CALCULATION BREMSSTRAHLUNG PHOTONS NUCLEAR-EQUATION MULTIFRAGMENTATION EMISSION DISTRIBUTIONS DEPENDENCE ONSET

Constraining the in-medium nucleon-nucleon cross section from the width of nuclear giant dipole resonance 期刊论文 OAI收割
PHYSICS LETTERS B, 2020, 卷号: 807, 页码: -
作者: Wang, R; Zhang, Z; Chen, LW; Ko, CM; Ma, YG

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收藏 | 浏览/下载：33/0 | 提交时间：2021/09/06

MICROSCOPIC CALCULATION DYNAMICS DISAPPEARANCE DEPENDENCE EQUATION FLOW COLLISIONS TRANSPORT STATE

Equations of state of Co2TiO4-Sp, Co2TiO4-CM, and Co2TiO4-CT, and their phase transitions: an experimental and theoretical study 期刊论文 OAI收割
PHYSICS AND CHEMISTRY OF MINERALS, 2019, 卷号: 46, 期号: 6, 页码: 571-582
作者: Zhang, Yanyao; Liu, Xi; Shieh, Sean R.; Zhang, Zhigang; Bao, Xinjian

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收藏 | 浏览/下载：103/0 | 提交时间：2019/06/24

Co2TiO4-CM Co2TiO4-CT Co2TiO4-Sp DFT calculation Diamond-anvil cell Equation of state High-P phase transition Synchrotron X-ray diffraction

Field-line coupling interference prediction of LCD module in high-power TEA CO2 laser system (EI CONFERENCE) 会议论文 OAI收割
2012 International Conference on Optoelectronics and Microelectronics, ICOM 2012, August 23, 2012 - August 25, 2012, Changchun, China
Ge X.; Li X.

收藏 | 浏览/下载：16/0 | 提交时间：2013/03/25

In high power TEA CO2 laser system liquid crystal display (LCD) module is a key device for display and control functions. Because of laser's harsh electromagnetic environment LCD module coupled to the electromagnetic interference easily leading to not work normally. This paper analyzed the interference coupling mechanism. On the basis of the analysis results LCD module's field-line coupling is calculated by Taylor form's BLT equation. The calculation result is verified by experiment. The results show that due to the field-line coupling the data line of LCD module existed interference voltage interference voltage value is 1V. The interference voltage is larger than the LCD module's noise margin. LCD module must shield the interference. 2012 IEEE.

Thermoelectric properties of zno nanowires: a first principle research 期刊论文 iSwitch采集
Physics letters a, 2011, 卷号: 375, 期号: 30-31, 页码: 2878-2881
作者: Liu, Chaoren; Li, Jingbo

收藏 | 浏览/下载：30/0 | 提交时间：2019/05/12

Thermoelectric property Zno nanowire First principle calculation Boltzmann transport equation

Imaging control of airborne area CCD mapping camera (EI CONFERENCE) 会议论文 OAI收割
2011 International Conference on Mechatronic Science, Electric Engineering and Computer, MEC 2011, August 19, 2011 - August 22, 2011, Jilin, China
作者: Chen X.; Chen X.; Chen X.

收藏 | 浏览/下载：18/0 | 提交时间：2013/03/25

Digital mapping camera is an important tool for modern airborne photogrammetry. Monochromic area CCD which is full frame transfer is selected as image sensor in this paper. Electronic shutter is utilized to eliminate the opening delay of mechanical shutter which will affect the precision of exterior orientation elements acquisition. The equation for calculation displacement of principal point is proposed for TDI forward image motion compensation to compensate principal point shift. Imaging pose control system is designed in order to meet the need for airborne stereo mapping. 2011 IEEE.

Evaluation of the operating range for ground-based infrared imaging tracking system (EI CONFERENCE) 会议论文 OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, May 24, 2011 - May 24, 2011, Beijing, China
作者: Zhang Z.-D.

收藏 | 浏览/下载：48/0 | 提交时间：2013/03/25

Ground-based infrared imaging tracking system (GIITS) is of great importance for aerial target warning and guard. The operating range is one of the key performance specifications on the other which should be calculated calculate the radiation power received on the detector in order to analysis whether the output signal meets the detection requirements or not analyzed and studied during the whole GIITS design process. The operating range is mostly influenced by a few factors without considering the effect of the background radiation. By improving of the traditional method including atmospheric attenuation a new operating range calculation model of the GIITS was established based on two requirements. One is that the image size of observed target should meet the requirement of the processor signal extraction. The number of the pixel occupied by target image should be more than 9. The other is that the signal noise ratio (SNR) of the GIITS should not be less than 5 to meet the requirements of the target detection probability and spatial frequency. The SNR calculation equation in form of energy is deduced and the radiation characteristic of the observed target and background are analyzed. When evaluate the operating range of the GIITS using the new method the performance of GIITS and feature of target and background. This paper firstly makes analysis and summarization on the definite localizations of the traditional operating range equation of the GIITS. The localizations are mainly in two aspects. On one hand we should successively calculate two operating range values according to two requirements mentioned above and choose the minimum value as the analytic result. In the end the dispersion of the image and the effect of image dispersion are not considered in the traditional method an evaluation of operating range for fighter aircraft is accomplished as an example. The influence factors in every aspect on operating range were explored by the calculated result. The new operating range calculation model provides the theoretical basis for the design and applications as well as the comprehensive evaluation of a GIITS. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).

Design of aspherical surfaces for panoramic imagers using multipopulations genetic algorithm (EI CONFERENCE) 会议论文 OAI收割
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, November 19, 2008 - November 21, 2008, Chengdu, China
作者: Jin C.-S.; Wang L.-P.; Liang Z.-Z.

收藏 | 浏览/下载：30/0 | 提交时间：2013/03/25

A design method of aspherical surface for panoramic imaging system with two mirrors using multi-populations genetic algorithms is proposed. Astigmatism induced by mirrors may significantly compromise image resolution. To solve this problem we induced algebraic expression of astigmatism in panoramic imager based on generalized Coddington equation and theory of geometric optics. Then we propose an optimization process for mirror profile design to eliminate astigmatism and provide purposely-designed projection formula with aid of MPGA. A series of polynomial expressions of aspherical surfaces are obtained and procedures of the design are presented. In order to facilitate ray tracing and aberration calculation even asphere surface model is obtained by using of hybrid schemes combining MPGA and damped least squares. Finally a prototype of the catadioptric panoramic imager has been developed and panoramic ring image is obtained. 2009 SPIE.