咨询与建议

限定检索结果

文献类型

  • 6,076 篇 期刊文献
  • 104 篇 会议

馆藏范围

  • 6,180 篇 电子文献
  • 0 种 纸本馆藏

日期分布

学科分类号

  • 3,385 篇 工学
    • 739 篇 材料科学与工程(可...
    • 394 篇 化学工程与技术
    • 251 篇 计算机科学与技术...
    • 247 篇 环境科学与工程(可...
    • 242 篇 机械工程
    • 227 篇 土木工程
    • 215 篇 水利工程
    • 214 篇 交通运输工程
    • 202 篇 建筑学
    • 180 篇 电气工程
    • 176 篇 城乡规划学
    • 175 篇 电子科学与技术(可...
    • 160 篇 地质资源与地质工...
    • 155 篇 控制科学与工程
    • 144 篇 农业工程
    • 142 篇 矿业工程
    • 141 篇 软件工程
    • 137 篇 仪器科学与技术
  • 1,516 篇 理学
    • 274 篇 生物学
    • 218 篇 大气科学
    • 215 篇 生态学
    • 195 篇 化学
    • 186 篇 物理学
  • 1,208 篇 医学
    • 821 篇 临床医学
    • 141 篇 公共卫生与预防医...
  • 843 篇 农学
    • 344 篇 农业资源与环境
    • 218 篇 作物学
  • 428 篇 管理学
    • 206 篇 公共管理
    • 166 篇 管理科学与工程(可...
  • 201 篇 经济学
    • 182 篇 应用经济学
  • 47 篇 教育学
  • 30 篇 文学
  • 29 篇 法学
  • 23 篇 艺术学
  • 18 篇 历史学
  • 12 篇 军事学
  • 4 篇 哲学

主题

  • 90 篇 china
  • 58 篇 microstructure
  • 38 篇 mechanical prope...
  • 34 篇 covid-19
  • 34 篇 numerical simula...
  • 33 篇 analysis
  • 32 篇 temperature
  • 32 篇 rare earths
  • 30 篇 cancer
  • 30 篇 of
  • 28 篇 planning
  • 25 篇 climate change
  • 23 篇 precipitation
  • 23 篇 model
  • 22 篇 deep learning
  • 22 篇 simulation
  • 22 篇 system
  • 22 篇 diagnosis
  • 21 篇 liver
  • 20 篇 management

机构

  • 158 篇 university of ch...
  • 39 篇 university of ch...
  • 24 篇 school of geogra...
  • 23 篇 institute of agr...
  • 22 篇 college of resou...
  • 18 篇 state key labora...
  • 16 篇 institute of agr...
  • 15 篇 grirem advanced ...
  • 14 篇 college of archi...
  • 14 篇 general research...
  • 13 篇 university of sc...
  • 13 篇 nanjing universi...
  • 13 篇 school of civil ...
  • 13 篇 changjiang insti...
  • 12 篇 north china elec...
  • 12 篇 nanoyang group s...
  • 12 篇 china orthopedic...
  • 12 篇 jilin university...
  • 12 篇 school of archit...
  • 12 篇 center of excell...

作者

  • 23 篇 yang yang
  • 20 篇 wei li
  • 18 篇 jian wang
  • 18 篇 meng wang
  • 16 篇 jun wang
  • 16 篇 wei liu
  • 14 篇 lei wang
  • 14 篇 r.s.chen
  • 13 篇 wei sun
  • 13 篇 jing li
  • 12 篇 feng liu
  • 12 篇 bin wang
  • 12 篇 xu ming-gang
  • 12 篇 yu wang
  • 12 篇 jun zhang
  • 12 篇 ming li
  • 12 篇 jie li
  • 12 篇 jing yang
  • 11 篇 tao yang
  • 11 篇 hao zhang

语言

  • 5,481 篇 英文
  • 699 篇 中文
检索条件"机构=Program group of Urban Planning"
6180 条 记 录,以下是4991-5000 订阅
排序:
A remote,fully oriented personalized program of physical exercise for women in follow-up after breast cancer treatment improves body composition and physical fitness
收藏 引用
Sports Medicine and Health Science 2023年 第2期5卷 128-136页
作者: Edipo G.França-Lara Saulo H.Weber Ricardo A.Pinho JoséClaudio Casali-da-Rocha Selene Elifio-Esposito Graduate program in Health Sciences School of Medicine and Life SciencesPontifícia Universidade Católica do ParanáCuritibaPRBrazil School of Medicine and Life Sciences Pontifícia Universidade Católica do ParanáCuritibaPRBrazil Oncogenetics Department A.C.Camargo Cancer CenterSão PauloSPBrazil Hospital Erasto Gaertner CuritibaPRBrazil
This study aimed to evaluate the efficacy of an individualized remote exercise program on the improvement of body composition and physical fitness of a heterogeneous group of patients who completed breast cancer *** p... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Nitrate application affects root morphology by altering hormonal status and gene expression patterns in B9 apple rootstock nursery plants
收藏 引用
Fruit Research 2021年 第1期1卷 129-139页
作者: Muhammad Mobeen Tahir Xiaoyun Zhang Kamran Shah Faisal Hayat Shaohuan Li Jiangping Mao ke Li Yu Liu Yun Shao Dong Zhang College of Horticulture Yangling Subsidiary Center Project of the National Apple Improvement CenterNorthwest Agriculture&Forestry UniversityYangling 712100China Agricultural College The Key Laboratory of Special Fruits and Vegetables Cultivation Physiology and Germplasm Resources Utilization in Xinjiang Production and Construction GroupShihezi UniversityShihezi 832003XinjiangChina Laboratory of Fruit Tree Biotechnology College of HorticultureNanjing Agricultural UniversityNanjing 210095China
Lateral roots(LRs)are critical for absorbing water,minerals,and *** is a vital signaling molecule for regulating LR ***,understanding how nitrate interacts with endogenous hormones and genes to coordinate LR developme... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Flexibility improvement evaluation of hydrogen storage based on electricity-hydrogen coupled energy model
收藏 引用
Global Energy Interconnection 2021年 第4期4卷 371-383页
作者: Chen Jin Jinyu Xiao Jinming Hou Xiaoqing Wu Jinxuan Zhang Ershun Du Global Energy Interconnection group Co. Ltd.Beijing 100031P.R.China Key Laboratory of Power System Intelligent Dispatch and Control of Ministry of Education Jinan 250061P.R.China Laboratory of Low Carbon Energy Tsinghua UniversityBeijing 100084P.R.China
To achieve carbon neutrality by 2060,decarbonization in the energy sector is *** is expected to be vital for achieving the aim of carbon neutrality for two reasons:use of power-to-hydrogen(P2H)can avoid carbon emissio... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Numerical simulation research on response characteristics of surrounding rock for deep super-large section chamber under dynamic and static combined loading condition
收藏 引用
Journal of Central South University 2020年 第12期27卷 3544-3566页
作者: FAN De-yuan LIU Xue-sheng TAN Yun-liang SONG Shi-lin NING Jian-guo MA Qing School of Energy and Mining Engineering Shandong University of Science and TechnologyQingdao 266590China State Key Laboratory of Mining Disaster Prevention and Control Shandong University of Science and TechnologyQingdao 266590China State Key Laboratory of Water Resource Protection and Utilization in Coal Mining China Energy Group Co.Ltd.Beijing 100011China
The stability control of surrounding rock for large or super-large section chamber is a difficult technical problem in deep mining *** on the in-site geological conditions of Longgu coal mine,this paper used the dynam... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Origin and evolution of new exons in the rodent zinc fingerprotein 39 gene
收藏 引用
Chinese Science Bulletin 2005年 第11期50卷 1126-1130页
作者: PENG Lixin ZHENG Hongkun LI Xin YANG Shuang CHEN Hong WANG Wen College of Animal Science and Technology Northwest Sci-Tech Uni-versity of Agriculture and ForestryYangling 712100China CAS-Max Planck Junior Scientist group Key Laboratory of Cellular and Molecular EvolutionKunming Institute of ZoologyChinese Academy of SciencesKunming 650223China Beijing Institute of Genomics Chinese Academy of SciencesBeijing 101300China Graduate School of the Chinese Academy of Sciences Beijing 100039 China Institute of Cellular and Molecular Biology Xuzhou Normal Univer-sityXuzhou 221116China
The origin of new structures and functions is an important process in evolution. In the past decades, we have obtained some preliminary knowledge of the origin and evo- lution of new genes. However, as the basic unit ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
动力学问题中矩阵函数的高效算法
收藏 引用
Acta Mechanica Sinica 2023年 第8期39卷 137-147页
作者: 吴锋 朱力 赵悦琳 章恺琳 阎军 钟万勰 施庆华 Department of Mechanics State Key Laboratory of Structural Analysis of Industrial Equipment Dalian University of Technology Dalian 116023 China State Key Laboratory for Turbulence & Complex Systems Department of Mechanics and Engineering Science College of Engineering Peking University Beijing 100871 China Yunnan Machinery Research and Design Institute China National Machinery Institute Group Kunming 650000 China
本文基于Paterson-Stockmeyer(PS)算法和过滤技术提出了一种能精确和高效计算动力学问题中矩阵函数的算法.借助对截断误差和过滤引误差的分析,探究了计算中的误差增长规律,并基于此给出了自适应过滤阈值,使得提出的算法能更加高效地达... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
A Comparison of Selected Parametric and Non-Parametric Imputation Methods for Estimating Forest Biomass and Basal Area
收藏 引用
Open Journal of Forestry 2014年 第1期4卷 42-48页
作者: Donald Gagliasso Susan Hummel Hailemariam Temesgen Department of Forest Engineering Resources and Management Oregon State University Corvallis USA USDA Forest Service Goods Services and Values Program Portland Forest Sciences Laboratory US Forest Service Pacific Northwest Research Station Portland USA
Various methods have been used to estimate the amount of above ground forest biomass across landscapes and to create biomass maps for specific stands or pixels across ownership or project areas. Without an accurate es... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Flexible smart sensing skin for“Fly-by-Feel”morphing aircraft
收藏 引用
Science China(Technological Sciences) 2022年 第1期65卷 1-29页
作者: HUANG YongAn ZHU Chen XIONG WenNan WANG Yu JIANG YongGang QIU Lei GUO DongLiang HOU Chao JIANG Shan YANG ZhaoXi WANG Bo WANG Lu YIN ZhouPing State Key Laboratory of Digital Manufacturing Equipment and Technology Huazhong University of Science and TechnologyWuhan 430074China Flexible Electronics Research Center Huazhong University of Science and TechnologyWuhan 430074China State Key Laboratory of Mechanics and Control of Mechanical Structures Nanjing University of Aeronautics and AstronauticsNanjing 210016China Bionic and Micro/Nano/Bio Manufacturing Technology Research Center School of Mechanical Engineering and AutomationBeihang UniversityBeijing 100191China Department of Engineering Mechanics Northwestern Polytechnical UniversityXi’an 710072China The 38th Research Institute of China Electronics Technology group Corporation Hefei 230088China
Flexible smart sensing skin is a key enabling technology for the future"Fly-by-Feel"control of morphing *** represents the next-generation skin of aircraft that can exhibit a more powerful sensing function than a conv... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
An orthogonal dual-regulation strategy for sensitive biosensing applications
收藏 引用
National Science Review 2022年 第9期9卷 246-259页
作者: Xian Yang Jinhua Wang Zhongfeng Gao Weiqi Zhang Hai Zhu Yongjun Song Quan Wang Mingjie Liu Lei Jiang Yu Huang Fan Xia State Key Laboratory of Biogeology and Environmental Geology Engineering Research Center of Nano-Geomaterials of Ministry of EducationFaculty of Material Science and ChemistryChina University of Geosciences State Grid Integrated Energy Service group CO.LTD. State Key Laboratory of Proteomics Beijing Proteome Research Center National Center for Protein Sciences(Beijing)Beijing Institute of Lifeomics Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers College of Chemistry and Chemical Engineering Linyi University Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of the Ministry of Education School of Chemistry and EnvironmentBeihang University Zhejiang Institute China University of Geosciences
Biosensing systems based on controllable motion behaviors of droplets have attracted extensive attention,but still face challenges of insufficient sensitivity and uncontrollable dynamic range due to imprecise manipula... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
Reaction Mechanism of One-Step Conversion of Ethanol to 1,3-Butadiene over Zn-Y/BEA and Superior Catalysts Screening
收藏 引用
Chinese Journal of Chemical Physics 2022年 第4期35卷 600-610,I0004-I0009,I0149页
作者: Shu-Xuan Dang Han-Xuan Liu Tao Ban Xin Gao Zheng-Qing Huang Dong-Yuan Yang Chun-Ran Chang Shaanxi Key Laboratory of Energy Chemical Process Intensification School of Chemical Engineering and TechnologyXi’an Jiaotong UniversityXi’an 710049China Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization School of Chemistry and Chemical EngineeringYulin UniversityYulin 719000China Shaanxi Yanchang Petroleum(group)Corp.Ltd. Xi’an 710065China
The one-step conversion of ethanol to 1,3-butadiene has achieved a breakthrough with the development of beta zeolite supported dual metal ***,the reaction mechanism from ethanol to butadiene is complex and has not yet... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论