咨询与建议

限定检索结果

文献类型

  • 723,798 篇 期刊文献
  • 5,325 篇 会议
  • 50 篇 学位论文
  • 31 册 图书

馆藏范围

  • 729,199 篇 电子文献
  • 5 种 纸本馆藏

日期分布

学科分类号

  • 335,749 篇 工学
    • 46,425 篇 材料科学与工程(可...
    • 36,763 篇 化学工程与技术
    • 32,186 篇 机械工程
    • 25,040 篇 计算机科学与技术...
    • 22,296 篇 电气工程
    • 19,722 篇 软件工程
    • 18,076 篇 土木工程
    • 17,381 篇 仪器科学与技术
    • 16,575 篇 动力工程及工程热...
    • 15,603 篇 环境科学与工程(可...
    • 14,976 篇 交通运输工程
    • 14,380 篇 电子科学与技术(可...
    • 14,358 篇 控制科学与工程
    • 13,841 篇 水利工程
    • 12,817 篇 地质资源与地质工...
  • 209,203 篇 医学
    • 120,345 篇 临床医学
    • 28,440 篇 中西医结合
    • 20,829 篇 公共卫生与预防医...
    • 18,480 篇 药学(可授医学、理...
    • 15,485 篇 中药学(可授医学、...
    • 14,805 篇 医学技术(可授医学...
    • 14,048 篇 基础医学(可授医学...
  • 90,282 篇 理学
    • 18,999 篇 化学
    • 16,173 篇 生物学
  • 72,235 篇 农学
    • 18,412 篇 作物学
    • 15,366 篇 农业资源与环境
  • 55,051 篇 管理学
    • 22,046 篇 管理科学与工程(可...
    • 18,078 篇 公共管理
  • 35,112 篇 教育学
    • 27,183 篇 教育学
  • 22,716 篇 经济学
    • 19,820 篇 应用经济学
  • 18,120 篇 法学
  • 10,683 篇 文学
  • 5,180 篇 艺术学
  • 5,048 篇 历史学
  • 2,844 篇 哲学
  • 2,145 篇 军事学

主题

  • 4,599 篇 数值模拟
  • 4,585 篇 影响因素
  • 3,549 篇 预后
  • 3,404 篇 儿童
  • 3,050 篇 应用
  • 2,771 篇 产量
  • 2,689 篇 力学性能
  • 2,502 篇 诊断
  • 2,462 篇 危险因素
  • 2,317 篇 治疗
  • 2,304 篇 大鼠
  • 2,107 篇 对策
  • 2,026 篇 磁共振成像
  • 1,971 篇 教学改革
  • 1,655 篇 中国
  • 1,654 篇 稳定性
  • 1,648 篇 糖尿病
  • 1,639 篇 综述
  • 1,552 篇 细胞凋亡
  • 1,483 篇 合成

机构

  • 4,600 篇 中国科学院大学
  • 4,384 篇 清华大学
  • 4,282 篇 吉林大学
  • 4,148 篇 中国地质大学
  • 4,047 篇 北京大学
  • 4,006 篇 哈尔滨工业大学
  • 3,732 篇 兰州大学
  • 3,723 篇 天津大学
  • 3,633 篇 西北农林科技大学
  • 3,546 篇 西安交通大学
  • 3,531 篇 上海交通大学
  • 3,514 篇 同济大学
  • 3,460 篇 浙江大学
  • 3,344 篇 山东大学
  • 3,215 篇 中国矿业大学
  • 3,066 篇 四川大学
  • 3,004 篇 宁夏大学
  • 2,969 篇 西北工业大学
  • 2,942 篇 中国石油大学
  • 2,716 篇 大连理工大学

作者

  • 4,704 篇 马超
  • 3,666 篇 马丽
  • 3,438 篇 马宁
  • 3,412 篇 马强
  • 3,333 篇 马静
  • 3,143 篇 马涛
  • 2,899 篇 马军
  • 2,863 篇 马骏
  • 2,556 篇 马莉
  • 2,411 篇 马勇
  • 2,369 篇 马力
  • 2,170 篇 马琳
  • 2,144 篇 马杰
  • 1,961 篇 马艳
  • 1,686 篇 马俊
  • 1,644 篇 马玲
  • 1,548 篇 马林
  • 1,516 篇 马健
  • 1,497 篇 马磊
  • 1,449 篇 马辉

语言

  • 690,887 篇 中文
  • 38,307 篇 英文
  • 9 篇 日文
  • 1 篇 法文
检索条件"作者=liu-Hong Ma"
729204 条 记 录,以下是1-10 订阅
排序:
Coulomb blockade and hopping transport behaviors of donor-induced quantum dots in junctionless transistors
收藏 引用
Chinese Physics B 2020年 第3期29卷 436-441页
作者: liu-hong ma Wei-Hua Han Fu-Hua Yang School of Physics and Microelectronics Zhengzhou UniversityZhengzhou 450001China Center of materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Engineering Research Center for Semiconductor Integrated Technology Beijing Engineering Center of Semiconductor Micro-Nano Integrated TechnologyInstitute of SemiconductorsChinese Academy of SciencesBeijing 100083China State Key Laboratory for Superlattices and Microstructures Institute of SemiconductorsChinese Academy of SciencesBeijing 100083China
The ionized dopants, working as quantum dots in silicon nanowires, exhibit potential advantages for the development of atomic-scale transistors. We investigate single electron tunneling through a phosphorus dopant ind... 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
Cultural Differences and Translation
收藏 引用
湖北科技学院学报 1996年 第4期27卷 53-56页
作者: liu hong ma Xiao
*** andLanguage deePly. What Is culture?It Is stilla controver-sial *** have to define culture in a satistactory way,but each is
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
Root Exudates, Rhizosphere Zn Fractions, and Zn Accumulation of Ryegrass at Different Soil Zn Levels
收藏 引用
Pedosphere 2007年 第3期17卷 389-396页
作者: XU Wei-hong liu Huai ma Qi-Fu XIONG Zhi-Ting College of Resources and Environmental Sciences Southwest University Chongqing 400716 (China) College of Plant Protection Southwest University Chongqing 400716 (China) Soil Science and Plant Nutrition University of Western Australia Crawley WA 600Y ( Australia) College of Resources and Environmental Sciences Wuhan University Wuhan 430072 (China)
A glasshouse experiment was conducted using a root-bag technique to study the root exudates, rhizosphere Zn fractions, and Zn concentrations and accumulations of two ryegrass cultivars (Lolium perenne L. cvs. Airs an... 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
Influence of dopant concentration on electrical quantum transport behaviors in junctionless nanowire transistors
收藏 引用
Chinese Physics B 2018年 第8期27卷 593-597页
作者: liu-hong ma Wei-Hua Han Xiao-Song Zhao Yang-Yan Guo Ya-Mei Dou Fu-Hua Yang School of Physical Engineering Zhengzhou UniversityZhengzhou 450001China School of Electronic Electrical and Communication EngineeringUniversity of Chinese Academy of SciencesBeijing 100049China Engineering Research Center for Semiconductor Integrated Technology Beijing Engineering Center of Semiconductor Micro-Nano Integrated Technolog34 Institute of SemiconductorsChinese Academy of SciencesBeijing 100083China State Key Laboratory for Superlattices and Microstructures Institute of SemiconductorsChinese Academy of Sciences.Beiiine 100083 China
We discuss the random dopant effects in long channel junctionless transistor associated with quantum confinement effects. The electrical measurement reveals the threshold voltage variability induced by the random dopa... 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
Regulation and function of endoplasmic reticulum autophagy in neurodegenerative diseases
收藏 引用
Neural Regeneration Research 2025年 第1期20卷 6-20页
作者: Xiu-Yun Zhao De-En Xu Ming-Lei Wu Ji-Chuan liu Zi-Ling Shi Quan-hong ma Department of Neurology and Clinical Research Center of Neurological Disease the Second Affiliated Hospital of Soochow UniversitySuzhouJiangsu ProvinceChina Institute of Neuroscience&Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases Soochow UniversitySuzhouJiangsu ProvinceChina Department of Neurology Jiangnan University Medical CenterWuxiJiangsu ProvinceChina
The endoplasmic reticulum,a key cellular organelle,regulates a wide variety of cellular *** reticulum autophagy,one of the quality control systems of the endoplasmic reticulum,plays a pivotal role in maintaining endop... 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
Effect of defects properties on InP-based high electron mobility transistors
收藏 引用
Chinese Physics B 2019年 第7期28卷 529-533页
作者: Shu-Xiang Sun Ming-Ming Chang Meng-Ke Li liu-hong ma Ying-Hui Zhong Yu-Xiao Li Peng Ding Zhi Jin Zhi-Chao Wei School of Physics and Engineering Zhengzhou University Zhengzhou 450001 China Institute of Microelectronics Chinese Academy of Sciences Beijing 100029 China China Academy of Space Technology Beijing 100086 China
The performance damage mechanism of InP-based high electron mobility transistors(HEMTs) after proton irradiation has been investigated comprehensively through induced *** effects of the defect type, defect energy leve... 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
Enhancement of radiation hardness of InP-based HEMT with double Si-doped plane
收藏 引用
Chinese Physics B 2020年 第3期29卷 455-459页
作者: Ying-Hui Zhong Bo Yang Ming-Ming Chang Peng Ding liu-hong ma Meng-Ke Li Zhi-Yong Duan Jie Yang Zhi Jin Zhi-Chao Wei School of Physics and Microelectronics Zhengzhou UniversityZhengzhou 450001China Institute of Microelectronics Chinese Academy of SciencesBeijing 100029China China Academy of Space Technology Beijing 100086China
An anti-radiation structure of In P-based high electron mobility transistor(HEMT) has been proposed and optimized with double Si-doped planes. The additional Si-doped plane under channel layer has made a huge promotio... 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
Research status and prospects of the fractal analysis of metal material surfaces and interfaces
收藏 引用
International Journal of Minerals,Metallurgy and materials 2025年 第1期32卷 20-38页
作者: Qinjin Dai Xuefeng liu Xin ma Shaojie Tian Qinghe Cui Beijing Advanced Innovation Center for materials Genome Engineering University of Science and Technology BeijingBeijing 100083China Beijing Laboratory of Metallic materials and Processing for Modern Transportation University of Science and Technology BeijingBeijing 100083China Laboratory for Advanced materials Processing of Ministry of Education University of Science and Technology BeijingBeijing 100083China School of Mechanical and Electrical Engineering Xinjiang Institute of EngineeringUrumqi 830023China
As a mathematical analysis method,fractal analysis can be used to quantitatively describe irregular shapes with self-similar or self-affine *** analysis has been used to characterize the shapes of metal materials at v... 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
Efficient and Stable Perovskite Solar Cells and Modules Enabled by Tailoring Additive Distribution According to the Film Growth Dynamics
收藏 引用
Nano-Micro Letters 2025年 第2期17卷 387-400页
作者: Mengen ma Cuiling Zhang Yujiao ma Weile Li Yao Wang Shaohang Wu Chong liu Yaohua mai Institute of New Energy Technology College of Physics&Optoelectronic EngineeringJinan UniversityGuangzhou 510632People’s Republic of China Key Laboratory of New Semiconductors and Devices of Guangdong Higher Education Institutes Jinan UniversityGuangzhou 510632People’s Republic of China Guangdong Mellow Energy Co. LimitedYuanming RoadZhuhai 519075GuangdongPeople’s Republic of China
Gas quenching and vacuum quenching process are widely applied to accelerate solvent volatilization to induce nucleation of perovskites in blade-coating *** this work,we found these two pre-crystallization processes le... 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
Collaborative Trajectory Planning for Stereoscopic Agricultural Multi-UAVs Driven by the Aquila Optimizer
收藏 引用
Computers, materials & Continua 2025年 第1期82卷 1349-1376页
作者: Xinyu liu Longfei Wang Yuxin ma Peng Shao School of Computer and Information Engineering Jiangxi Agricultural UniversityNanchang330045China
Stereoscopic agriculture,as an advanced method of agricultural production,poses new challenges for multi-task trajectory planning of unmanned aerial vehicles(UAVs).To address the need for UAVs to perform multi-task tr... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论