云南高校图书馆联盟文献共享服务平台- BOTTOM

BOTTOM: 作品数：450被引量：783H指数：13; 导出分析报告; 相关领域：天文地球更多>>; 相关作者：蔡乐平李旭芳吴刚范英魏一鸣更多>>; 相关机构：清华大学杭州汽轮机股份有限公司中国科学院上海工程技术大学更多>>; 相关期刊：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国家高技术研究发展计划中国博士后科学基金更多>>

Sharp Bounds for Upper and Bottom Spectrum of Hermitizable Tridiagonal Matrices: 《Journal of Mathematical Research with Applications》2025年第1期125-132,共8页Yueshuang LI Lingdi WANG; Supported by the National Natural Science Foundation of China(Grant Nos.11771046,12101186);Beijing Natural Science Foundation(Grant No.1254039).; We display sharp bounds for upper and lower spectrum of a Hermitizable tridiagonal matrix.The representations are brought to light by exploiting the characteristic for eigenpairs(eigenvalue and its corresponding eigen...; 关键词：Hermitizable matrix isospectral matrices upper and bottom spectrum

Rock fracture mechanism of buffer blasting with cushion layer at the borehole bottom: 《International Journal of Minerals,Metallurgy and Materials》2025年第2期325-334,共10页Xinguang Zhu Chenxi Ding Zhe Sui Hong Su Xu Guo; financially supported by the National Natural Science Foundation of China(Nos.52204085 and 52104074);the Youth Science and Technology Foundation Key Laboratory for Mechanics in Fluid Solid Coupling System,Institute of Mechanics(No.E0XM040401)。; This study primarily investigates the rock fracture mechanism of bottom cushion layer blasting and explores the effects of the bottom cushion layer on rock fragmentation.It involves analyses of the evolution patterns ...; 关键词：bottom cushion layer BLASTING crack propagation continuum-discontinuum element method dynamic stress intensity factor

Research on the Ultimate Strength of a Hull Bottom Full-Scale Stiffened Plate Under Axial Compression and Lateral Pressure: 《China Ocean Engineering》2025年第1期1-12,共12页LI Zheng-jie DING Qi-yin CUI Hu-wei ZHAO Nan; financially supported by the National Natural Science Foundation of China(Grant No.52001040),the Natural Science Foundation Project of Chongqing,Chongqing Science and Technology Commission(Grant No.cstc2021jcyj-msxmX0944);the Science and Technology Research Program of Chongqing Municipal Education Commission(Grant No.KJZD-K202300710).; The influences of different factors,including whether the transverse frames are actually built,longitudinal and transverse welding residual stresses,and unloaded edge boundaries,on the ultimate strength and failure mo...; 关键词：ultimate strength full-scale stiffened plate residual stress lateral pressure

Numerical simulation of vortex breakdown in a cylindrical tank with rotating bottom and free surface using level set method: 《Chinese Journal of Chemical Engineering》2025年第1期293-300,共8页Zepeng Zhao Qin Li Feng Ye Haoliang Wang Jianfeng Wang Hui Yu Xiangyang Li Chao Yang; National Natural Science Foundation of China(22178228,22178326)are gratefully acknowledged.; A cylindrical chamber with a rotating bottom holds significant potential for application in cell culture bioreactors due to its ability to generate more stable swirling flows.In order to control vortex breakdown withi...; 关键词：Vortex breakdown Level set Microbial cultivation Micro-bioreactor

Numerical Simulation of Flow and Temperature Distribution in a Bottom-Blown Copper Bath: 《Fluid Dynamics & Materials Processing》2025年第1期121-140,共20页Teng Xia Xiaohui Zhang Ding Ma Zhi Yang Xinting Tong Yutang Zhao Hua Wang; Supported by Yunnan Fundamental Research Projects(Nos.202301AT070469,202301AT070275);Supported by Yunnan Major Scientific and Technological Projects(No.202202AG050002).; Smelting with oxygen bottom blowing is one of the main methods used in the frame of copper pyrometallurgy.With this approach,feed materials and oxygen-enriched air are introduced in reversed order to enhance multiphas...; 关键词：Copper smelting bottom-blown melting furnace flow characteristics temperature distribution numerical simulation

Impact Behavior Analysis and Failure Mode Comparison of Glass Fiber(GF)/Polydicyclopentadiene(PDCPD)Thermosetting Composite for Automobile Bottom Protection Plate: 《Journal of Donghua University(English Edition)》2024年第6期595-606,共12页MEI Zhonghao PEI Zhilei CHENG Lele MIN Wei GAO Ruize CHENG Chao ZHOU Fei YU Muhuo SUN Zeyu; A glass fiber(GF)/polydicyclopentadiene(PDCPD)composite impact simulation model was established based on LS-DYNA(the finite element analysis software peroduced by Livermore Software Technology Corporation)simulation.A...; 关键词：thermosetting composite PDCPD GF/PP GF/PA LS-DYNA simulation impact performance MAT54

Precise Determination of the Bottom-Quark On-Shell Mass Using Its Four-Loop Relation to the MS-Scheme Running Mass: 《Chinese Physics Letters》2024年第10期26-30,共5页Shun-Yue Ma Xu-Dong Huang Xu-Chang Zheng Xing-Gang Wu; supported in part by the National Natural Science Foundation of China(Grant Nos.12175025,12247129,and 12347101);the Graduate Research and Innovation Foundation of Chongqing,China(Grant No.ydstd1912);the Foundation of Chongqing Normal University(Grant No.24XLB015)。; We explore the properties of the bottom-quark on-shell mass(M_(b))by using its relation to the MS mass(m_(b)).At present,this MS-on-shell relation has been known up to four-loop QCD corrections,which however still has...; 关键词：correction QUARK RELATION

CFD Investigations of Interaction Between Freak Wave and Bottom-Mounted Vertical Cylinder: 《Journal of Shanghai Jiaotong university(Science)》2024年第5期809-816,共8页GAO Ningbo ZHANG Yongtao ZHANG Hong; the National Natural Science Foundation of China(No.51239007);the China Postdoctoral Science Foundation(No.2017M612541)。; We studied the interactions between freak wave and bottom-mounted vertical cylinder.The freak wave is generated through linear superposition method which satisfies the definition that the wave height is at least two t...; 关键词：Navier-Stokes equations freak wave wave run-up wave force

A range and depth estimation method using the time delay structure of bottom reflection in deep sea bottom bounce area: 《Chinese Journal of Acoustics》2024年第3期275-289,共15页XIE Qichen CHI Cheng ZHANG Bo HUANG Haining; supported by the National Natural Science Foundation of China(62001469).; When the source-receiver depth relationship is unknown,using the time delay differences for distance and depth estimation may result in a pseudo source.To address the issue,a method for directly estimating distance an...; 关键词：DELAY estimation METHOD

Physical and Chemical Characterizations of Rubber Latex Cup Bottom Oil: 《Advances in Bioscience and Biotechnology》2024年第9期511-521,共11页Kouassi Konan Edmond Abolle Abollé Aketchi Tanoé Lucien Konan Affoué Tindo Sylvie Boa David Yao Kouassi Benjamin; Rubber latex is an important economic resource. However, the residues from its harvesting are thrown away, even though they contain lipids that can be recycled. This recovery of the residues from the bottom of the cup...; 关键词：Rubber Latex Cup Bottoms Oil Density Viscosity CHARACTERIZATIONS

BOTTOM