POROSITY

作品数：860被引量：2040H指数：16
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相关机构：北京科技大学中国石油天然气集团公司华南理工大学清华大学更多>>
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Study of the elastic scattering effects of a slowing-down model on D–T neutron porosity logging
《Nuclear Science and Techniques》2025年第5期206-215,共10页Shao-Heng Zhou Ying-Long Tao Bo Chang Li-Juan Hao Jie-Qiong Jiang Ya-Zhou Li Fang Wang Quan Gan FDS Consortium 
supported by the Anhui Provincial Major Science and Technology Project(No.201903c08020003);the Taishan industrial Experts Program。
The application of a controllable neutron source for measuring formation porosity in the advancement of nuclear logging has garnered increased attention.The existing porosity algorithm,which is based on the thermal ne...
关键词：D–T neutron source Slowing-down model Elastic scattering Neutron porosity 
Hydraulic conductivity of sand influenced by temperature and porosity in centrifugal tests
《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2025年第3期177-193,共17页Jianjian HE Xihao JIANG Yubing WANG 
supported by the Basic Science Center Program for Multiphase Media Evolution in Hypergravity of the National Natural Science Foundation of China(No.51988101)。
This study focused on the hydraulic conductivity of sand in centrifuge modeling.A self-designed temperature-controlled falling-head permeameter apparatus was used,and a series of falling-head seepage tests were perfor...
关键词：Hydraulic conductivity of sand TEMPERATURE POROSITY Centrifugal acceleration Kozeny-Carman equation 
Enhancing the performance of proton-exchange membrane fuel cell by optimizing the hydrophobicity and porosity of cathode catalyst layer
《Science China(Technological Sciences)》2025年第3期72-81,共10页Yan ZHANG Puping JIA Suyi YANG Jinzhan SU Liejin GUO 
supported by the Basic Science Center Program for Ordered Energy Conversion of the National Natural Science Foundation of China(Grant No.52488201);the National Key R&D Program of China(Grant No.2021YFF0500504);the Fundamental Research Funds for the Central Universities。
Appropriate hydrophobicity and porosity of the proton-exchange membrane fuel cell(PEMFC)cathode catalyst layer(CCL)are essential for efficient charge and mass transport.In this study,the effects of the CCL hydrophobic...
关键词：proton-exchange membrane fuel cell cathode catalyst layer membrane electrode assemblies polytetrafluoroethylene pore-forming agent 
Computational study of the effect of friction coefficients and particle shape on the repose angle and porosity of sinter piles
《Particuology》2025年第3期231-240,共10页Meng Li Yaowei Yu Henrik Saxén 
funded by China Scholarship Council(grant No.202106890009).
Shape has an undeniable impact on particle behaviour,and the shapes of naturally occurring granular matter are typically irregular.Computational studies of irregularly shaped particles are challenging but necessary to...
关键词：SINTER Discrete element method Friction coefficients Particle shape Repose angle POROSITY 
Quantitative Strengthening Evaluation of Mg-Zn-Y Alloys Containing Icosahedral Quasi-Crystalline Phase
《稀有金属材料与工程》2025年第3期612-617,共6页Wang Yingnan Meng Xiaokai Guo Junhong 
National Natural Science Foundation of China(12072166);Inner Mongolia Autonomous Region Science and Technology Plan Project(2021GG0254);Supported by Key Laboratory of Infinite-Dimensional Hamiltonian System and Its Algorithm Application(Inner Mongolia Normal University),Ministry of Education(2023KFZD02);Inner Mongolia Autonomous Region Applied Mathematics Center Independent Research Key Project(ZZYJZD2022002);Inner Mongolia Autonomous Region Universities Basic Scientific Business Fee Research Project(JY20220075)。
Mg-4.8Zn-0.8Y,Mg-18Zn-3Y,Mg-15Zn-5Y,Mg-30Zn-5Y and Mg-42Zn-7Y(wt%)alloys containing icosahedral quasicrystalline phases were prepared using the ordinary solidification method.The impact of Mg matrix porosity on the te...
关键词：Mg-Zn-Y alloy Mg matrix porosity mechanical properties quantitative analysis 
Prediction of sandstone porosity in coal seam roof based on variable mode decomposition and random forest method
《Applied Geophysics》2025年第1期197-208,235,236,共14页Huang Ya-ping Qi Xue-mei Cheng Yan Zhou Ling-ling Yan Jia-hao Huang Fan-rui 
National Natural Science Foundation of China(Grant No.42274180);National Key Research and Development Program of China(2021YFC2902003).
Evaluation of water richness in sandstone is an important research topic in the prevention and control of mine water disasters,and the water richness in sandstone is closely related to its porosity.The refl ection sei...
关键词：VMD random forest method coal seams SANDSTONE POROSITY 
Abstracts Selectedfrom Naihuo Cailiao(Refractories)A Bimonthly in Chinese
《China's Refractories》2025年第1期51-54,共4页
Influence of Tio,addition on phase composition and properties of porous Sic ceramics/Deng Chengji,He Feng,Liang Yiming,Li Ji,Gao Chao,Mu Meng/Naihuo Cailiao-2024,58(2):93 Abstract:To achieve high porosity and strength...
关键词：CERAMICS properties. POROSITY 
A novel carbon-induced-porosity mechanism for improved cycling stability of magnesium hydride
《Journal of Magnesium and Alloys》2025年第3期1341-1352,共12页Shuaijun Ding Yuqing Qiao Xuecheng Cai Hongchao Wang Xun Shen Lidong Xu Yixuan Wen Fenglong Jiang Wei Zhou Tongde Shen 
supported by the National Natural Science Foundation of China(Nos.22279111,51971195,and 11935004);the Natural Science Foundation of Hebei Province(No.B2020203037);Subsidy for Hebei Key Laboratory of Applied Chemistry after Operation Performance(No.22567616H).
MgH2 has been extensively studied as one of the most ideal solid hydrogen storage materials.Nevertheless,rapid capacity decay and sluggish hydrogen storage kinetics hamper its practical application.Herein,a Ni/C nano-...
关键词：Hydrogen storage materials Magnesium hydride Cycling properties Particle stability Carbon-induced-porosity 
Influence of Porosity on Vibration of Porous FG Plates Resting on an Arbitrarily Orthotropic Winkler-Pasternak Foundation by PDDO
《Acta Mechanica Solida Sinica》2025年第1期142-151,共10页Yongyu Yang Xiaoqi Wang Hang Zhao Chao Wang Changzheng Cheng Raj Das 
supported by the Research Start-Up Fund for Introducing Talents from Anhui Polytechnic University(S022023032);the Program for Synergy Innovation in the Anhui Higher Education Institutions of China(GXXT-2021-044 and GXXT-2022-082);the Scientific Research Foundation of Education Department of Anhui Province,China(2022AH040361);the National Natural Science Foundation of China(12172114);the Natural Science Funds for Distinguished Young Scholar of Anhui Province of China(2208085J25).
This paper studies the vibration responses of porous functionally graded(FG)thin plates with four various types of porous distribution based on the physical neutral plane by employing the peridynamic differential oper...
关键词：Vibration response Porous FG plate Orthotropic Winkler-Pasternak foundation PDDO 
Effect of Eu-Er substitution on structural,optical,dielectric,and electrical properties of Ba_(0.5)Sr_(0.5)Eu_(x)Er_(x)Fe_(12-2x)O_(19) hexaferrite
《Journal of Rare Earths》2025年第1期115-123,I0005,共10页Jayashri Mahapatro Sher Singh Meena Sadhana Agrawal 
The present work reports the structural,optical,dielectric,and electrical properties of Eu-Er substituted M-type Ba_(0.5)Sr_(0.5)Eu_(x)Er_(x)Fe_(12-2x)O_(19)(x=0.0.05,0.1,0.15,and 0.2)hexaferrites synthesized by sol-g...
关键词：Sol-gel process POROSITY Dielectric properties Ferrites Rare earths 
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