SEMI-EMPIRICAL

作品数：67被引量：78H指数：4
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Assessment of hydraulic performance changes of Dongting Lake after the Three Gorges Reservoir impoundment by a novel semi-empirical approach
《Journal of Geographical Sciences》2024年第8期1537-1557,共21页SUN Zhaohua LI Zhiqing CHEN Li FAN Jiewei LIU Ya 
National Natural Science Foundation of China,No.51879198;The Follow-up Research Program for the Three Gorges Project from the Ministry of Water Resources of China,No.12630100100020J005。
Floodplain lakes are important water storage areas in lowland regions that often undergo geomorphologic evolution,and timely topographic data are generally unavailable.In this study,to assess the impacts of lakebed de...
关键词：Dongting Lake hydraulic performance graph bed adjustment semi-empirical approach backwater effect 
Fast and Accurate Simulation of Canopy Reflectance under Wavelength-Dependent Optical Properties Using a Semi-Empirical 3D Radiative Transfer Model
《Journal of Remote Sensing》2023年第1期48-59,共12页Jianbo Qi Jingyi Jiang Kun Zhou Donghui Xie Huaguo Huang 
supported by the National Natural Science Foundation of China programs(Grant No.42001279 and Grant No.42101329);Open Fund of State Key Laboratory of Remote Sensing Science(Grant No.OFSLRSS202014 and Grant No.OFSLRSS202115).
Generating canopy-reflectance datasets using radiative transfer models under various leaf and optical property combinations is important for remote sensing retrieval of vegetation parameters.Onedimensional radiative t...
关键词：reflectance SIMULATION branch 
Degradation prediction of proton exchange membrane fuel cell stack using semi-empirical and data-driven methods被引量：3
《Energy and AI》2023年第1期1-11,共11页Yupeng Wang Kangcheng Wu Honghui Zhao Jincheng Li Xia Sheng Yan Yin Qing Du Bingfeng Zu Linghai Han Kui Jiao 
supported by the National Key Research and Development Program of China(Grant No.SQ2021YFE011145);the Science and Technology Development Program of Jilin Province(Grant No.20200501010GX).
Degradation prediction of proton exchange membrane fuel cell(PEMFC)stack is of great significance for improving the rest useful life.In this study,a PEMFC system including a stack of 300 cells and subsystems has been ...
关键词：Proton exchange membrane fuel cell system Data-driven method Semi-empirical equation Degradation experiments 
Semi-empirical and semi-quantitative lightweight shielding design method被引量：4
《Nuclear Science and Techniques》2023年第3期109-124,共16页Song-Chuan Zheng Qing-Quan Pan Huan-Wen Lv Song-Qian Tang Xiao-Jing Liu 
sponsored by Natural Science Foundation of Shanghai (No.22ZR1431900);the Young Elite Scientist Sponsorship Program of the China National Nuclear Corporation (CNNC).
The lightweight shielding design of small reactors is a popular research topic.Based on a small helium-xenon-cooled solid reactor,the effects of neutron and photon shielding sequence and the number of shielding layers...
关键词：Small reactor LIGHTWEIGHT Shielding calculation Genetic algorithm 
外电场下溴化铯的分子结构和解离特性被引量：1
《量子电子学报》2022年第3期316-323,共8页安桓 向梅 布玛丽亚·阿布力米提 王兴晨 郑敬严 
国家自然科学基金,21763027;新疆区域协同创新专项,2019E0223;新疆天山青年计划项目,2018Q072;新疆矿物发光材料及其微结构重点实验室招标课题,KWFG2011。
利用Semi-empirical/PM6方法,研究了外电场(-0.015~0.035 a.u.)作用下溴化铯(CsBr)分子的基态结构、键长、总能量、偶极矩、电荷分布、能隙、红外光谱、以及势能面的变化规律。研究结果表明:在外电场作用下,CsBr分子结构发生明显的变化...
关键词：光谱学 分子解离 SEMI-EMPIRICAL 溴化铯 外电场 
Semi-empirical estimation for enhancing negative thermal expansion in PbTiO_(3)-based perovskites被引量：1
《International Journal of Minerals,Metallurgy and Materials》2022年第4期783-786,共4页Tao Yang Longlong Fan Yilin Wang Kun Lin Jun Chen Xianran Xing 
financially supported by the National Key R&D Program of China(No.2020YFA0406202);the National Natural Science Foundation of China(Nos.22090042 and 21731001)。
Generally,most materials expand when heated and contract when cooled,whereas negative thermal expansion(NTE)materials are very rare.As a typical NTE material,PbTiO_(3) and related compounds have drawn particular inter...
关键词：enhanced negative thermal expansion crystal structure lead titanate spontaneous polarization 
Theoretical Investigation of Two-Dimensional Nonlinear Radiative Thermionics in Nano-MHD for Solar Insolation:A Semi-Empirical Approach
《Computer Modeling in Engineering & Sciences》2022年第2期751-776,共26页Usman Inayat Shaukat Iqbal Tareq Manzoor 
In this contemporary study,theoritical investigation of nanofluidic model is thought-out.Two-dimensional nanomaterials based mixed flow is considered here.Convective solar radiative heat transport properties have been...
关键词：Magneto-hydrodynamic(MHD) OHAM NANOFLUID solar radiative stretched wall 
Improved Semi-empirical Model of Proton Exchange Membrane Fuel Cell Incorporating Fault Diagnostic Feature被引量：1
《Journal of Modern Power Systems and Clean Energy》2021年第6期1566-1573,共8页Saad Saleem Khan Hussain Shareef Ahmad Asrul Ibrahim 
supported by United Arab Emirates University(Emirates Centre for Energy and Environment Research)(No.31R067)。
The membrane water content of the proton exchange membrane fuel cell(PEMFC)is the most important feature required for water management of the PEMFC system.Any improper management of water in the fuel cell may lead to ...
关键词：Proton exchange membrane fuel cell(PEMFC)fault membrane water content MODELLING optimization quan-tum lightening search algorithm 
Simplified Calculation of Flow Resistance of Suspension Bridge Main Cable Dehumidification System被引量：3
《Fluid Dynamics & Materials Processing》2021年第6期1195-1211,共17页Zhiyuan Tu Fusheng Peng Zijie Wei Guo Qian Jie Wang Chunjie Huang 
Ministry of Communications and Provincial and Joint Research Project[2008-353-332-170].
To calculate the flow resistance of a main cable dehumidification system,this study considers the air flow in the main cable as the flow in a porous medium,and adopts the Hagen–Poiseuille equation by using average hy...
关键词：Main cable dehumidification computational fluid dynamics dry air semi-empirical flow resistance formula 
Investigation of a semi-empirical load model of natural gas explosion in vented spaces被引量：1
《Journal of Safety Science and Resilience》2021年第3期157-171,共15页Shigang Yang Jiongwei Cai Ya Yang Qin Fang Qi Bao Senpei Wang 
The authors gratefully acknowledge the financial support from Natural Science Foundation of Jiangsu Province of China(Grant No.BK20180081);National Key R&D Program of China(Great No.2020YFB2103300);National Basic Research Program of China(973 Program)(Grant No.2015CB058000).
Due to the influence of many factors,the overpressure-time history load model of vented gas explosions is difficult to describe and is not conducive to further structural design.Based on vented gas explosion test data...
关键词：Vented gas explosion Load model Overpressure-time history Gas concentration Venting pressure 
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