Preliminary Application of Function Expansion Tally in CLUTCH Method by HUANG Jinlong, CAO Liangzhi, HE Qingming, QIN Shuai, WU Hongchun

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Multivariate Seismic Fragility Analysis of a Nuclear Power Plant Containment Based on Generalized Conditional Spectra by WANG Xiaolei;YAN Weidong;LYU Dagang

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Establishment of Anti-cosmic Ray HPGe Gamma Spectrometer by ZHU Yuchen;LI Qi;FAN Yuanqing;ZHAO Yungang;WANG Shilian;ZHANG Xinjun;JIA Huaimao;ZHANG Ruiqin;LI Ruiying;ZHOU Jianliang

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Uncertainty Analysis of Neutron Diffusion Eigenvalue Problem Based on Reduced-order Model by In order to improve the efficiency of core physical uncertainty analysis based on sampling statistics, the proper orthogonal decomposition (POD) and Galerkin projection method were combined to study the application feasibility of reduced-order model based on POD-Galerkin method in core physical uncertainty analysis. The two-dimensional two group TWIGL benchmark question was taken as the research object, the key variation characteristics of the core flux distribution were extracted under the finite perturbation of the group constants of each material region, and the full-order neutron diffusion problem was projected on the variation characteristics to establish a reduced-order neutron diffusion model. The reduced-order model was used to replace the full-order model to carry out the uncertainty analysis of the group constants of the material region. The results show that the bias of the mathematical expectation of keff calculated by reduced-order and full-order models is close to 1 pcm. In addition, compared with the calculation time required for uncertainty analysis of full-order model, the analysis time of reduced-order model (including the calculation time of the full-order model required for the construction of reduced-order model) is only 11.48%, which greatly improves the efficiency of uncertainty analysis. The biases of mathematical expectation of keff calculated by reduced-order and full-order models based on Latin hypercube sampling and simple random sampling are less than 8 pcm, and under the same sample size, the bias from the Latin hypercube sampling result is smaller. From the TWIGL benchmark test results, under the same sample size, Latin hypercube sampling method is more recommended for POD-Galerkin reduced-order model.

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Analysis of Brayton Cycle Characteristics of CO2-SF6 Mixed Working Fluid by XI Dapeng;LIU Minyun;LIU Xiuting;FEI Junjie;ZANG Jinguang;HUANG Yanping

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Theoretical Study on B—Cl Stretching Infrared Spectrum of Boron Trichloride at Low Temperature by LI Yejun;MA Junping;TANG Xian;LI Xin

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Analysis on Improving Utilization of Uranium Resource Based on Fast Reactor with Closed Fuel Cycle by HU Yun;YANG Yong;SONG Yingyun;YANG Peng

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Finite Element Based Multi-dimension and Multi-physics Coupling Analysis for Nuclear Reactor System by WU Yingwei, HE Yanan, ZHANG Jing, TIAN Wenxi, SU Guanghui, QIU Suizheng

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Research on Resonant Amplification of Capacitive Schottky Pickup by WANG Minwen;WANG Zhongming;QIU Mengtong;ZHAO Mingtong;WANG Di;WANG Maocheng;ZHUO Xin;YAN Yihua

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Complexation of U(Ⅵ) with Dialkyldithiophosphinic Acid by SUI Qiaorui1, XIA Tiantian1, DENG Qin1, LAN Youshi1, YANG Suliang1, TIAN Guoxin1,2

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Static and Dynamic Radiation Damage of Silicon Carbide VDMOS and Their Comparison by FENG Haonan;YANG Sheng;LIANG Xiaowen;ZHANG Dan;PU Xiaojuan;SUN Jing;WEI Ying;CUI Jiangwei;LI Yudong;YU Xuefeng;GUO Qi

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Combined Removal of Sr2+ by Montmorillonite-carbonate Mineralizing Bacteria by DAI Qunwei;WANG Weifu;ZHAO Yulian;XU Fengqin;DANG Zheng;WANG Yan

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Study on Quantitative Method for Hydrogen Distribution in Zirconium Alloy via Neutron Tomography by WU Meimei;LIU Xin;HE Linfeng;HU Yong;RUAN Shihao;WANG Tianyun;LI Yuqing;WEI Guohai;SUN Kai

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Study on Tensile Strength and Its Characteristics of Domestic Graphite Based on Brazilian Disc Test by TIAN Dongqing;SHI Li;SUN Libin;SHEN Ke;XU Kun

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Mechanism Model of Critical Heat Flux in Bundle Based on High-precision Subchannel Code by GUO Junliang;JIANG Li;GAO Kui;KONG Huanjun;GUI Miao;SHAN Jianqiang

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Fuel Mass Transfer in Single-cell Thermionic Fuel Element and Its Influence on Fuel Performance by LEI Huazhen;ZHONG Wuye;JIANG Wei;ZHAO Zhenhua

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Application of LoongSARAX in Calculation of Plate Fuel Critical Experimental Facility by LI Zehua1, ZHANG Qian2, DU Xianan3, ZHAO Changyou1

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Research on 2D Motion Model of Jet Droplet in Gravity Field by LIU Zhanwei;BO Hanliang

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Preparation and Property of Palladium/Alumina Composite by LONG Peihong;BAI Tianju;XIONG Liangyin;CHEN Demin;CHEN Wei

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Study on Focusing High Current Electron Beams with Quadrupole Magnets in LIA by JING Xiaobing;WANG Yi;YANG Zhiyong;SHI Jinshui

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