咨询与建议

限定检索结果

文献类型

  • 189,210 篇 期刊文献
  • 1,509 篇 会议
  • 2 篇 学位论文

馆藏范围

  • 190,721 篇 电子文献
  • 0 种 纸本馆藏

日期分布

学科分类号

  • 86,949 篇 工学
    • 13,245 篇 材料科学与工程(可...
    • 10,729 篇 化学工程与技术
    • 7,929 篇 机械工程
    • 6,081 篇 计算机科学与技术...
    • 5,519 篇 电气工程
    • 4,751 篇 软件工程
    • 4,413 篇 仪器科学与技术
    • 4,082 篇 动力工程及工程热...
    • 4,016 篇 环境科学与工程(可...
    • 3,936 篇 生物医学工程(可授...
    • 3,808 篇 电子科学与技术(可...
    • 3,739 篇 土木工程
    • 3,718 篇 食品科学与工程(可...
    • 3,477 篇 控制科学与工程
    • 3,464 篇 水利工程
  • 64,572 篇 医学
    • 36,688 篇 临床医学
    • 9,882 篇 中西医结合
    • 6,559 篇 药学(可授医学、理...
    • 6,492 篇 公共卫生与预防医...
    • 5,507 篇 中药学(可授医学、...
    • 5,251 篇 基础医学(可授医学...
    • 4,446 篇 医学技术(可授医学...
    • 3,465 篇 中医学
  • 25,967 篇 理学
    • 6,407 篇 化学
    • 5,798 篇 生物学
  • 23,540 篇 农学
    • 6,715 篇 作物学
    • 4,668 篇 农业资源与环境
  • 10,281 篇 管理学
    • 4,318 篇 管理科学与工程(可...
    • 3,660 篇 公共管理
  • 5,833 篇 教育学
    • 4,379 篇 教育学
  • 3,464 篇 经济学
  • 1,989 篇 法学
  • 1,544 篇 文学
  • 1,022 篇 艺术学
  • 657 篇 历史学
  • 538 篇 军事学
  • 425 篇 哲学

主题

  • 1,169 篇 数值模拟
  • 975 篇 影响因素
  • 910 篇 预后
  • 856 篇 大鼠
  • 818 篇 产量
  • 773 篇 力学性能
  • 723 篇 儿童
  • 701 篇 磁共振成像
  • 680 篇 危险因素
  • 534 篇 合成
  • 514 篇 诊断
  • 476 篇 玉米
  • 475 篇 应用
  • 460 篇 凋亡
  • 435 篇 水稻
  • 431 篇 治疗
  • 403 篇 细胞凋亡
  • 348 篇 小麦
  • 330 篇 乳腺癌
  • 315 篇 综述

机构

  • 1,336 篇 中南大学
  • 1,266 篇 四川大学
  • 1,152 篇 吉林大学
  • 1,134 篇 浙江大学
  • 1,133 篇 清华大学
  • 1,102 篇 北京大学
  • 1,055 篇 中国科学院大学
  • 1,028 篇 西北农林科技大学
  • 989 篇 西北工业大学
  • 895 篇 中国地质大学
  • 891 篇 山东大学
  • 846 篇 北京中医药大学
  • 843 篇 中国农业大学
  • 827 篇 上海交通大学
  • 811 篇 华中科技大学
  • 788 篇 西安交通大学
  • 758 篇 中国石油大学
  • 715 篇 郑州大学
  • 707 篇 重庆大学
  • 688 篇 武汉大学

作者

  • 1,682 篇 李科
  • 1,555 篇 李珂
  • 1,234 篇 李可
  • 971 篇 李伟
  • 763 篇 李克
  • 636 篇 王珂
  • 539 篇 任丽
  • 536 篇 任杰
  • 525 篇 李宁
  • 524 篇 李军
  • 509 篇 李强
  • 472 篇 李娜
  • 472 篇 李敏
  • 431 篇 李涛
  • 412 篇 李静
  • 411 篇 李刚
  • 384 篇 王科
  • 376 篇 李莉
  • 370 篇 李明
  • 348 篇 李柯

语言

  • 179,473 篇 中文
  • 11,246 篇 英文
  • 2 篇 日文
检索条件"作者=LI ren.Ke"
190721 条 记 录,以下是11-20 订阅
排序:
Lymphatic plastic bronchitis and primary chylothorax: A study based on computed tomography lymphangiography
收藏 引用
World Journal of Clinical Cases 2024年 第14期12卷 2350-2358页
作者: Xing-Peng li Yan Zhang Xiao-li Sun Kun Hao Meng-ke liu Qi Hao ren-Gui Wang Department of Radiology Beijing Shijitan Hospital Affiliated to Capital Medical UniversityBeijing 100038China Department of Radiology Qilu HospitalShandong UniversityJinan 250063Shandong ProvinceChina Department of Lymph Surgery Beijing Shijitan Hospital Affiliated to Capital Medical UniversityBeijing 100038China Department of Radiology People's Hospital of Peking UniversityThe Second School of Clinical Medicine of Peking UniversityBeijing 100034China
BACKGROUND This study presents an evaluation of the computed tomography lymphangio-graphy(CTL)features of lymphatic plastic bronchitis(PB)and primary chylotho-rax to improve the diagnostic accuracy for these two *** T... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Vision-Based Adaptive Prescribed-Time Control of UAV for Uncooperative Target Tracking with Performance Constraint
收藏 引用
Journal of Systems Science & Complexity 2024年 第5期37卷 1956-1977页
作者: SHE Xuehua MA Hui ren Hongru li Hongyi School of Automation and the Guangdong Provincial key Laboratory of Intelligent Decision and Cooperative Control Guangdong University of TechnologyGuangzhou 510006China School of Mathematics and Statistics Guangdong University of TechnologyGuangzhou 510006China College of Electronic and Information Engineering and Chongqing key Laboratory of Generic Technology and System of Service Robots Southwest UniversityChongqing 400715China
This paper discusses the uncooperative target tracking control problem for the unmanned aerial vehicle(UAV)under the performance constraint and scaled relative velocity constraint,in which the states of the uncooperat... 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
Effects of Co-Firing Biomass and Pulverized Coal on NO Reduction in Cement Precalciner
收藏 引用
Journal of Thermal Science 2024年 第2期33卷 751-760页
作者: li Pengpeng ren Qiangqiang LYU Qinggang WANG Mingyue School of Energy Power and Mechanical Engineering North China Electric Power UniversityBeijing102206China Institute of Engineering Thermophysics Chinese Academy of SciencesBeijing100190China University of Chinese Academy of Sciences Beijing100049China
With increased awareness of the large-scale CO_(2) emissions from the cement industry,there has been growing focus on greenhouse gas reduction *** all these strategies,fuel substitution using biomass fuel is extensive... 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
Depositional model of the Member Deng-2 marginal microbial mound-bank complex of the Dengying Formation in the southwestern Sichuan Basin, SW China: Implications for the Ediacaran microbial mound construction and hydrocarbon exploration
收藏 引用
Petroleum Science 2024年 第2期21卷 806-822页
作者: Jin-Min Song Xin Jin Zhong Luo Shu-Gen liu Shao-Bo liu Xing-Zhi Ma Zhi-Wu li Xue-Song Lu ling-li Zhao ke-Ran li Jia-Xin ren li-Zhou Tian Hao-Shuang Deng State key Laboratory of Oil and Gas Reservoir Geology and Exploitation Chengdu University of TechnologyChengdu610059SichuanChina PetroChina Research Institute of Petroleum Exploration and Development Beijing100083China Xihua University Chengdu610039SichuanChina
Recent advances in hydrocarbon exploration have been made in the Member Deng-2 marginal microbial mound-bank complex reservoirs of the Dengying Formation in the western Sichuan Basin, SW China,where the depositional p... 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
Impacts of different pancreatic resection ranges on endocrine function in Suncus murinus
收藏 引用
World Journal of Gastrointestinal Surgery 2024年 第7期16卷 2308-2318页
作者: Ru-Jia li Ting Yang Yu-Hao Zeng Yutaro Natsuyama ke ren Jun li Yuichi Nagakawa Shuang-Qin Yi Department of Frontier Health Sciences Graduate School of Human Health SciencesTokyo Metropolitan UniversityTokyo 116-8551Japan Faculty of Physical Education Qujing Normal UniversityQujing 655000Yunnan ProvinceChina School of Medicine Shanghai Cancer InstituteShanghai Jiao Tong UniversityShanghai 200240China Department of Gastrointestinal and Pediatric Surgery Tokyo Medical UniversityTokyo 160-0023Japan
BACKGROUND Surgical intervention involving the pancreas can lead to impaired glucose tolerance and other types of endocrine *** scope of pancreatectomy and whether it includes the ventral pancreas are the key factors ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Preparation of entangledW states based on the cavity QED system
收藏 引用
Chinese Physics B 2024年 第9期33卷 290-296页
作者: ke li Jun-Long Zhao Department of Physics Shanghai Second Polytechnic UniversityShanghai 201209China Quantum Information Research Center Shangrao Normal UniversityShangrao 334001China
We present a qubit-loss-free(QLF)fusion scheme for generating large-scale atom W states in cavity quantum electrodynamics(QED)*** to the most current fusion schemes which are conditioned on the case where one particle... 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
Improve meat production and virus resistance by simultaneously editing multiple genes in livestock using Cas12i^(Max)
收藏 引用
Science China(life Sciences) 2024年 第3期67卷 555-564页
作者: Jilong ren Tang Hai Yangcan Chen ke Sun Zhiqiang Han Jing Wang Chongyang li Qingwei Wang Leyun Wang Huabing Zhu Dawei Yu Wei li Shanjiang Zhao State key Laboratory of Animal Nutrition Key Laboratory of Animal GeneticsBreeding and Reproduction of Ministry of Agriculture and Rural AffairsInstitute of Animal ScienceChinese Academy of Agricultural SciencesBeijing 100193China State key Laboratoryf Stem Cell and Reproductive Biology Instituteof ZooogyChinese Academyof SciencesBeijing 100101China Beijing Institute for Stem Cell and Regenerative Medicine Beijing 100101China Beijing Farm Animal Research Center Institute of ZoologyChinese Academy of SciencesBeijing 100101China
The clustered regularly interspaced short palindromic repeats(CRISPR)/CRISPR-associated gene(Cas) system is continually optimized to achieve the most efficient gene editing effect. The Cas12i^(Max), a Cas12i variant, ... 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
Primitive functional groups directed distinct photocatalytic performance of imine-linked donor-acceptor covalent organic frameworks
收藏 引用
Nano Research 2024年 第6期17卷 4994-5001页
作者: Xitong ren Jiajie Sun Yusen li Feng Bai key Laboratory for Special Functional Materials of Ministry of Education National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting TechnologySchool of Materials Science and Engineeringand Collaborative Innovation Center of Nano Functional Materials and ApplicationsHenan UniversityKaifeng 475004China School of Physics and Electronics Henan UniversityKaifeng 475004China
The combination of donor-acceptor(D-A)structures presents a viable strategy for fabricating covalent organic frameworks(COFs)with exceptional photocatalytic ***,the selection of functional groups on donor or acceptor ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Partition and planning:A human-like motion decision for UAV in trap environment
收藏 引用
Science China(Technological Sciences) 2024年 第4期67卷 1226-1237页
作者: CHEN JinTao ZHOU Qi ren HongRu li HongYi School of Automation Guangdong University of TechnologyGuangzhou 510006China Provincial key Laboratory of Intelligent Decision and Cooperative Control Guangdong University of Technology Guangzhou 510006Chi
This paper presents a human-like motion decision-making method for unmanned aerial vehicles(UAVs)navigating in trap *** proposed a space partitioning method based on sampling and consistency control to conduct a preli... 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
Observing suppressed polarization in flexible ferroelectric negative capacitance field effect transistors
收藏 引用
Journal of Materiomics 2024年 第4期10卷 762-769页
作者: Chuanlai ren liyufen Dai Congbing Tan Guangtong Yuan ke Qu Jinbin Wang Xiangli Zhong Mingqiang Huang Jiyan Dai Gaokuo Zhong Jiangyu li Shenzhen Institutes of Advanced Technology Chinese Academy of SciencesShenzhen518055GuangdongChina Guangdong Provincial key Laboratory of Functional Oxide Materials and Devices Southern University of Science and TechnologyShenzhen518055GuangdongChina School of Materials Science and Engineering Xiangtan UniversityXiangtan411105HunanChina School of Physics and Electronics Hunan University of Science and TechnologyXiangtan411201HunanChina Department of Materials Science and Engineering Southern University of Science and TechnologyShenzhen518055GuangdongChina Department of Applied Physics The Hong Kong Polytechnic UniversityHong Kong999077China
Negative capacitance(NC)has the potential to enable low power microelectronics beyond the fundamental thermionic limit,and it has been theorized that the thermodynamically unstable NC of ferroelectrics can be stabiliz... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论