检索结果-南通市图书馆

The Application of Fuzzy Evaluation based on GIS in Tianjin Urban Underground Space resource Appraisal

在线全文

学校读者我要写书评

暂无评论

地学前缘 2009年第S1期16卷 186-186页

作者： Fang xu~(1,2.,Jian Shen~1 1.department of City Geology,Tianjin Institute of Geological Survey,Tianjin 300191,{2.. 2.Faculty of resource and Safety engineering,{2. university of mining and Technology(beijing),beijing 100083,{2.

The exploitation and utilization of the city underground space resource is the important approach of building tri-dimensional and ecological cities, solving the environment,resource,and population crisis and continuing cities *** article, based on the introduction in detail the overview of regional geology,hydrogeologic condition,engineering geology,environmental geology,*** center city of Tianjin,establishes evaluating model of urban underground space resource based on GIS

关键词： geology information system fuzzy evaluation underground space resource appraisal Tianjin

Frontiers in high entropy alloys and high entropy functional materials

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2024年第10期43卷 4639-4776页

作者： Wen-Tao Zhang Wen huang Fu-Jie Yu Qi Zhao Xin-Dong Zhu Tao Feng Yao Jiang Xiao-Ming Li xue-Fei Miao He Zhu Si Lan xue-Qian Wang Bao-Long Shen Zhe Jia Feng-Qi Zhang Wei Wang Qi Liu Yang Ren xun-Li Wang Xiao-Ya Cui Xiao-Yang Wang Ya-Nan Chen Bing-Bing Fan Meng-Ru Li Qi-Long Gao Jia-Ming Guo Zeng-Bao Jiao Zhi-Min Guo Yu-Ping Zhao Qian Yu Rui huang Ling-Kun Zhang Yi-Ping Lu xu-Bo Li huai-Jun Lin Yan Ma Wei-Ming Yang Zhi-hua Shen Hai-Yan He Yong-Gang Sun Yong-Jiang huang De-Zhuang Wang Qing-Feng Liu Fei-Yang Wang Hui Liu Hong-Hui wu Li-qiang Wang Yang Lu Nan Wang Tian-Li Wang Wei-Bing Liao Yi-Han Wang Yuan wu Yu-Zhen Yin Jie Pan Yi Zhang Qing Wang Jian-Yang Zhang Tao Yang Yasir Sohail Jin-Yu Zhang hua Ji qiang Li Wei-Di Liu Zhi-Gang Chen Xiong-Jun Liu Wen Ma Liang Mao Zhen-Duo wu School of Materials Science and engineering Nanjing University of Science and Technology Jiangsu Key Laboratory for Advanced Metallic Materials School of Materials Science and Engineering Southeast University department of Physics City University of Hong Kong School of Materials Science and engineering Tianjin University School of Physics and Microelectronics Zhengzhou University department of Mechanical engineering Research Institute for Advanced Manufacturing The Hong Kong Polytechnic University Center of Electron Microscopy and State Key Laboratory of Silicon Materials School of Materials Science and Engineering Zhejiang University Key Laboratory of Solidification Control and Digital Preparation Technology (Liaoning Province) School of Materials Science and Engineering Dalian University of Technology Institute of Advanced Wear & Corrosion Resistance and Functional Materials Jinan University School of Mechanics and Civil engineering China University of Mining and Technology School of Physical Sciences Great Bay University School of Materials Science andengineering Harbin Institute of Technology State Key Laboratory of Materials-Oriented Chemical engineering College of Chemical Engineering Nanjing Tech University beijing Advanced Innovation Center for Materials Genome engineering Research Institute for Carbon Neutrality University of Science and Technology Beijing department of Mechanical engineering The University of Hong Kong School of Computing Macquarie University Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic Engineering Shenzhen University State Key Laboratory for Advanced Metals and Materials University of Science and Technology Beijing State Key Laboratory of Materials Processing and Die & Mould Technology School of Materials Science and Engineering Huazhong University of Science and Technology Institute of materials Shanghai University department of Materials Science and engineering C

Owing to their exceptional properties, high-entropy alloys(HEAs) and high-entropy materials have emerged as promising research areas and shown diverse applications. Here,the recent advances in the field are comprehensively reviewed,organized into five sections. The first section introduces the background of HEAs, covering their definition, significance,application prospects, basic properties, design principles, and microstructure. The subsequent section focuses on cutting-edge high-entropy structural materials, highlighting developments such as nanostructured alloys, grain boundary engineering,eutectic systems, cryogenic alloys, thin films, micro-nano-lattice structures, additive manufacturing, high entropy metallic glasses, nano-precipitate strengthened alloys, composition modulation, alloy fibers, and refractory systems. In the following section, the emphasis shifts to functional materials, exploring HEAs as catalysts, magneto-caloric materials, corrosion-resistant alloys, radiation-resistant alloys, hydrogen storage systems, and materials for biomedicine. Additionally, the review encompasses functional high-entropy materials outside the realm of alloys, including thermoelectric, quantum dots, nanooxide catalysts, energy storage materials, negative thermal expansion ceramics,and high-entropy wave absorption materials. The paper concludes with an outlook, discussing future directions and potential growth areas in the field. Through this comprehensive review,researchers, engineers, and scientists may gain valuable insights into the recent progress and opportunities for further exploration in the exciting domains of high-entropy alloys and functional materials.

关键词： Cutting-edge structural materials Cutting-edgefunctional materials High entropy alloys

不同热处理作用下花岗岩纵波波速和导热能力的演化规律分析

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

岩石力学与工程学报 2022年第3期41卷 457-467页

作者：吴星辉蔡美峰任奋华孙景来郭奇峰武旭张杰张利伟北京科技大学土木与资源工程学院北京100083 北京科技大学城市与地下空间工程北京市重点实验室北京100083 北京科技大学金属矿山高效开采与安全教育部重点实验室北京100083 北京市市政工程研究院北京100037

在地热能源开采过程中,温度对高温岩石的物理特性有着显著的影响,尤其是高温花岗岩遇水冷却后导热特性会发生很大的变化。为进一步研究温度和冷却方式对高温花岗岩物理特性的影响,开展高温花岗岩自然冷却和遇水冷却试验,通过对其质量、... 详细信息

在地热能源开采过程中,温度对高温岩石的物理特性有着显著的影响,尤其是高温花岗岩遇水冷却后导热特性会发生很大的变化。为进一步研究温度和冷却方式对高温花岗岩物理特性的影响,开展高温花岗岩自然冷却和遇水冷却试验,通过对其质量、体积、密度和波速等常规物理特性以及导热特性的测试,对比分析2.冷却方式下的物理参数变化规律。结果表明:质量损失率、体积增加率、密度变化率和波速衰减率随温度的升高呈指数型增加,当温度T=450℃时,花岗岩的物理特性变化率显著增加。遇水冷却能够增大花岗岩微裂纹密度,导致其物理特性进一步变化。热处理后花岗岩的导热系数随温度(2.℃~1 050℃)升高呈非线性降低,由3.41 W/(m·K)降至0.96 W/(m·K),降低了72.85%。热处理后花岗岩的导热系数与其质量损伤率、体积增加率和波速衰减率成负相关,可以用指数函数来表示。对比各物理参数的改性系数发现,在敏感性方面:纵波波速>导热系数>密度,因此纵波波速可以优先作为衡量花岗岩热损伤的指标参数。

关键词：岩石力学高温花岗岩地热开采冷却方式纵波波速导热特性

影响四川盆地页岩气开发的非技术因素:定义与机理

在线全文

学校读者我要写书评

暂无评论

天然气工业 2023年第4期43卷 24-31页

作者：张烈辉胡文瑞李小刚雍锐陈加旭陈更生徐强吴建发陈怡男吴易一刘鸿渊陈学忠鲁友常赵玉龙 “油气藏地质及开发工程”国家重点实验室·西南石油大学中国工程院工程管理学部中国石油西南油气田公司中国石油西南油气田公司页岩气研究院中节能(攀枝花)清洁技术发展有限公司四川长宁天然气开发有限责任公司四川页岩气勘探开发有限责任公司西南石油大学土木工程与测绘学院

四川盆地及其周缘页岩气可采资源量居全国首位,规模效益开发四川盆地页岩气对保障国家能源安全具有重大战略意义。页岩气开发不仅面临资源评价、钻井工程、压裂工程等方面的技术难题,还受到产业规划、扶持政策、地企协调等非技术因素的... 详细信息

四川盆地及其周缘页岩气可采资源量居全国首位,规模效益开发四川盆地页岩气对保障国家能源安全具有重大战略意义。页岩气开发不仅面临资源评价、钻井工程、压裂工程等方面的技术难题,还受到产业规划、扶持政策、地企协调等非技术因素的影响。为了解决页岩气开发过程中非技术因素概念界定、内涵和影响机理辨识的问题,基于利益相关者理论,以四川盆地南部地区(以下简称川南)页岩气开发为例,明确了影响页岩气开发非技术因素的定义和内涵,在实地调查、专家咨询和实践研究的基础上,构建了非技术因素贝叶斯网络模型,并进行了逆向推理和因果推断,定量辨识了影响川南页岩气开发的主要非技术因素和影响机理。研究结果表明:①影响页岩气开发的非技术因素指涉及页岩气产业兴起和发展进程中所有利益相关者的不确定性因素;②影响川南页岩气开发的主要非技术因素有页岩气产业政策、基层相关部门与企业的沟通机制、企业内部投资管理和群众个人认知;③针对页岩气开发不同阶段,应根据非技术因素影响机理,构建各利益相关者的协调机制,持续优化非技术因素调控措施。结论认为,非技术因素的明确对页岩开发具有重要作用,对推动形成技术因素和非技术因素双轮协同驱动页岩气规模高效开发的新局面具有重要指导意义,并可为保障四川盆地乃至我国页岩气顺利开发和页岩气产业高质量发展具有重要现实意义。

关键词：四川盆地页岩气开发非技术因素利益相关者贝叶斯网络机器学习

International experience of carbon neutrality and prospects of key technologies:Lessons for china

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Petroleum Science 2023年第2期20卷 893-909页

作者： Zheng-Meng Hou Ying Xiong Jia-Shun Luo Yan-Li Fang Muhammad Haris Qian-Jun Chen Ye Yue Lin wu Qi-Chen Wang Liang-Chao huang Yi-Lin Guo Ya-Chen Xie Institute of Subsurface Energy Systems Clausthal University of TechnologyClausthal-Zellerfeld38678Germany School of Earth and Space Sciences Peking UniversityBeijing100871China State Key Laboratory of Oil and Gas Reservoir Geology and exploitation Southwest Petroleum UniversityChengdu610500SichuanChina Sino-German Energy Research Center Sichuan UniversityChengdu610065SichuanChina department of Petroleum&Gas engineering University of Engineering&Technology54890LahorePakistan Yunnan Key Lab.of Sino-German Blue mining and Utilization of Special Underground Space Kunming650093YunnanChina Sino-German Research Institute of Carbon Neutralization and Green Development Zhengzhou UniversityZhengzhou450000HenanChina State Key Laboratory of Geomechanics and Geotechnical engineering Institute of Rock and Soil MechanicsChinese Academy of SciencesWuhan430071HubeiChina

Carbon neutrality(or climate neutrality)has been a global consensus,and international experience exchange is *** the differences in the degree of social development,resource endowment and technological level,each country should build a carbon-neutral plan based on its national *** with other major developed countries(e.g.,Germany,the United States and Japan),china's carbon neutrality has much bigger challenges,including a heavy and time-pressured carbon reduction task and the current energy structure that is over-dependent on fossil *** we provide a comprehensive review of the status and prospects of the key technologies for low-carbon,near-zero carbon,and negative carbon *** innovations associated with coal,oil-gas and hydrogen industries and their future potential in reducing carbon emissions are particularly explained and *** on integrated analysis of international experience from the world's major developed countries,in-depth knowledge of the current and future technologies,and{2.'s energy and ecological resources potential,five lessons for the implementation of{2.'s carbon neutrality are proposed:(1)transformation of energy production pattern from a coal-dominated pattern to a diversified renewable energy pattern;(2.renewable power-to-X and large-scale underground energy storage;(3)integration of green hydrogen production,storage,transport and utilization;(4)construction of clean energy systems based on smart sector coupling(ENSYSCO);(5)improvement of ecosystem carbon sinks both in nationwide forest land and potential desert in Northwest *** paper provides an international perspective for a better understanding of the challenges and opportunities of carbon neutrality in{2.,and can serve as a theoretical foundation for medium-long term carbon neutral policy formulation.

关键词： International experience Carbon reduction technologies Carbon neutrality Energy transition Underground energy storage Carbon capture,utilization and storage(CCUS)

在线全文

学校读者我要写书评

暂无评论

南海沉积物物理特性统计和力学特征简述

地基处理 2021年第6期3卷 475-481页

作者：冯伟强伍贤涵方雨菲南方科技大学海洋科学与工程系广东深圳518055 南方海洋科学与工程广东省实验室广东广州511458 中国铁道科学研究院铁道工程研究所北京100081

为实现海洋强国战略,加快海洋工程设施建设与海底资源开发利用,亟需对海底沉积物的物理特性和力学性质进行预估分析。本文以中国南海沉积物为研究对象,结合前人调查数据和研究成果,总结了南海沉积物的物理特性,分析浅海区域与深海区域... 详细信息

为实现海洋强国战略,加快海洋工程设施建设与海底资源开发利用,亟需对海底沉积物的物理特性和力学性质进行预估分析。本文以中国南海沉积物为研究对象,结合前人调查数据和研究成果,总结了南海沉积物的物理特性,分析浅海区域与深海区域不同沉积物类型和黏土矿物分布规律及影响因素,并初步探讨了南海沉积物空间相关性与变异性因素。北部浅水区沉积物类型呈平行海岸线的条带状分布,沉积物粒度随着水深的增加逐渐从粗粒转为细粒主导,但在海岛周围和陆架陆坡交界处呈现出特殊的分布规律。相较于浅水区黏性土,深水区域的表层沉积物具有高含水率、高液塑限、高压缩性、低抗剪强度等特点。沉积物力学性质的统计有利于指导海洋工程基础设施建设的迫切需求,为海洋油气资源开发、深海采矿、清洁能源利用提供设计依据。

关键词：南海沉积物粒度特征黏土矿物压缩性物理力学性质沉积环境海洋工程

在线全文

学校读者我要写书评

暂无评论

庙岭金矿采空区混合强度充填方法研究

矿冶工程 2022年第2期42卷 14-18,23页

作者：徐卫东张永亮陈晓利杨勇吴迪河南省航空物探遥感中心河南郑州450000 青岛理工大学机械与汽车工程学院山东青岛266520 河南省地质矿产勘查开发局第一地质矿产调查院河南洛阳471023 中国矿业大学(北京)能源与矿业学院北京100083 北京科技大学土木与资源工程学院北京100083

以庙岭金矿某地下采场为工程背景,利用COMSOL Multiphysics数值模拟软件分析了不同采空区处理方案对采空区和充填体围岩的影响。结果表明,充填采空区能有效缓解应力集中现象并控制岩层位移;充填体力学性能是影响充填效果的重要因素;在... 详细信息

以庙岭金矿某地下采场为工程背景,利用COMSOL Multiphysics数值模拟软件分析了不同采空区处理方案对采空区和充填体围岩的影响。结果表明,充填采空区能有效缓解应力集中现象并控制岩层位移;充填体力学性能是影响充填效果的重要因素;在不改变现有采场参数和充填体参数基础上,使用混合强度充填体处理采空区方案可行。

关键词：胶结充填数值模拟充填体岩层位移采空区充填

在线全文

学校读者我要写书评

暂无评论

关于煤系石墨鉴定标准的讨论

煤田地质与勘探 2022年第12期50卷 105-113页

作者：曹代勇王路朱文卿吴国强魏迎春宁树正王桂香肖金成徐祥刘亢中国矿业大学(北京)地球科学与测绘工程学院北京100083 山西能源学院地质与测绘工程系山西晋中030600 湖南省煤炭地质勘查院湖南长沙410000 中国煤炭地质总局勘查研究总院北京100039 中化地质矿山总局河南地质局河南郑州450000

煤系石墨的鉴别及其类型划分,是矿产地质勘查和资源开发利用的前提条件和基础性工作,制定煤系石墨鉴定标准应遵循科学性、系统性、适用性和可操作性的原则。煤石墨化作用与煤化作用是连续递进加跃变的演化过程,煤系石墨的大分子结构阶... 详细信息

煤系石墨的鉴别及其类型划分,是矿产地质勘查和资源开发利用的前提条件和基础性工作,制定煤系石墨鉴定标准应遵循科学性、系统性、适用性和可操作性的原则。煤石墨化作用与煤化作用是连续递进加跃变的演化过程,煤系石墨的大分子结构阶跃性演化和物质组成非均质性等特点,造成矿种鉴别的复杂性。为制定科学实用的鉴定标准,从成矿机制研究和资源评价需求出发,按照矿石总体石墨化程度由高至低,划分了煤系石墨一号、二号、三号等3种类型;在前期工作的基础上,补充了110多组实测数据,修改完善了由初步鉴定指标和精确鉴定指标构成的煤系石墨鉴定指标体系。初步鉴定指标包括挥发分产率V_(daf)和最大反射率R_(max),用于资源评价和地质勘查阶段初步区分煤与煤系石墨;精确鉴定指标包括晶面间距d_(002.及其等效的石墨化度G、拉曼光谱参数R_(2.,用以精确鉴别煤与煤系石墨,并划分煤系石墨类型。基于涵盖我国主要煤系石墨矿山500余组样品实测数据统计分析结果,确定了煤系石墨类型划分指标:煤系石墨一号,0.3354 nm≤d_(002.0.70)、R_(2.2.0.50~0.70)、R_(2.值范围0.50~0.60;煤系石墨三号,0.3400 nm≤d_(002.0~0.50),R_(2.值范围0.50~0.60。根据上述指标,建立了煤系石墨鉴定模板,主要煤系石墨矿山样品测试数据表明,该鉴定模版具有实用性和可操作性。

关键词：煤系石墨鉴定标准指标类型划分鉴定模板

Geological characteristics and development potential of transitional shale gas in the east margin of the Ordos Basin,NW china

在线全文

学校读者我要写书评

暂无评论

Petroleum Exploration and Development 2020年第3期47卷 471-482页

作者： KUANG Lichun DONG Dazhong HE Wenyuan WEN Shengming SUN Shasha LI Shuxin QIU Zhen LIAO Xinwei LI Yong wu Jin ZHANG Leifu SHI Zhensheng GUO Wen ZHANG Surong Science and Technology Management department of china National Petroleum Corporation Beijing 100007China Petrochina Research Institute of Petroleum Exploration&Development Beijing 100083China china Petroleum Consulting Center Beijing 100724China Petrochina Coalbed Methane Company Limited Beijing 100028China china university of Petroleum Beijing 102249China china university of {2. and Technology Beijing 100083China

The shales in the 2.d Member of Shanxi formation in the east margin of the Ordos Basin were deposited in a marine-nonmarine transitional environment during the *** on the recent breakthroughs in the shale gas exploration and theoretical understandings on the shale gas of the study area,with a comparison to marine shale gas in the Sichuan Basin and marine-nonmarine transitional shale gas in the U.S.,this study presents the geological characteristics and development potential of marine-nonmarine transitional gas in the study *** geological features are identified in the 2.d Member of the Shanxi Formation in the study area has:(1)stable sedimentary environment is conductive to deposition of widely distributed organic shale;(2.well-developed micro-and nanoscale pore and fracture systems,providing good storage capacity;(3)high content of brittle minerals such as quartz,leading to effectively reservoir fracturing;and(4)moderate reservoir pressure and relatively high gas content,allowing efficient development of shale *** 2.d Member of Shanxi Formation in the east margin of Ordos Basin is rich in shale gas *** favorable zones,Yulin-Linxian,Shiloubei-Daning-Jixian,and Hancheng-huangling are developed,with a total area of 1.2.×104 km2.and {2.s between 1.8×1012.and 2.9×1012.3,indicating a huge exploration *** of the 2.d Member of Shanxi Formation in vertical wells show that the favorable intervals have stable gas production and high reserves controlled by single well,good recoverability and *** shale interval has sufficient energy,stable production capacity,and good development prospects,as evidenced by systematic well *** east margin of the Ordos Basin has several shale intervals in the Shanxi and Taiyuan formations,and several coal seams interbedded,so collaborative production of different types of natural gas in different intervals can be *** study results can provide reference for shale gas ex

关键词： shale gas marine-nonmarine transitional shale favorable area collaborative production Permian Shanxi Formation Ordos Basin

同方期刊数据库