咨询与建议

限定检索结果

文献类型

  • 716,925 篇 期刊文献
  • 4,980 篇 会议
  • 19 篇 学位论文
  • 10 册 图书
  • 2 篇 报纸

馆藏范围

  • 721,934 篇 电子文献
  • 2 种 纸本馆藏

日期分布

学科分类号

  • 330,451 篇 工学
    • 43,405 篇 材料科学与工程(可...
    • 34,482 篇 化学工程与技术
    • 31,619 篇 机械工程
    • 28,573 篇 计算机科学与技术...
    • 21,950 篇 软件工程
    • 21,841 篇 电气工程
    • 20,265 篇 土木工程
    • 18,202 篇 仪器科学与技术
    • 16,293 篇 电子科学与技术(可...
    • 15,727 篇 动力工程及工程热...
    • 15,705 篇 控制科学与工程
    • 14,947 篇 交通运输工程
    • 14,090 篇 环境科学与工程(可...
    • 13,921 篇 水利工程
    • 12,766 篇 建筑学
  • 214,439 篇 医学
    • 124,682 篇 临床医学
    • 28,239 篇 中西医结合
    • 20,975 篇 公共卫生与预防医...
    • 20,356 篇 药学(可授医学、理...
    • 15,119 篇 基础医学(可授医学...
    • 14,878 篇 医学技术(可授医学...
    • 14,574 篇 中药学(可授医学、...
  • 86,582 篇 理学
    • 19,750 篇 化学
    • 17,170 篇 生物学
  • 66,996 篇 农学
    • 17,528 篇 作物学
    • 13,886 篇 农业资源与环境
  • 57,750 篇 管理学
    • 23,907 篇 管理科学与工程(可...
    • 18,724 篇 公共管理
  • 35,164 篇 教育学
    • 27,186 篇 教育学
  • 23,529 篇 经济学
    • 20,572 篇 应用经济学
  • 17,712 篇 法学
  • 10,821 篇 文学
  • 5,823 篇 艺术学
  • 4,781 篇 历史学
  • 2,773 篇 哲学
  • 2,399 篇 军事学

主题

  • 4,414 篇 数值模拟
  • 4,214 篇 影响因素
  • 3,545 篇 预后
  • 3,341 篇 儿童
  • 3,034 篇 应用
  • 2,886 篇 诊断
  • 2,544 篇 力学性能
  • 2,523 篇 治疗
  • 2,474 篇 大鼠
  • 2,385 篇 产量
  • 2,328 篇 危险因素
  • 2,074 篇 对策
  • 2,002 篇 中国
  • 1,859 篇 糖尿病
  • 1,844 篇 教学改革
  • 1,831 篇 磁共振成像
  • 1,760 篇 合成
  • 1,641 篇 疗效
  • 1,580 篇 稳定性
  • 1,528 篇 综述

机构

  • 7,005 篇 浙江大学
  • 5,115 篇 清华大学
  • 5,048 篇 上海交通大学
  • 4,270 篇 四川大学
  • 4,150 篇 同济大学
  • 3,993 篇 福建农林大学
  • 3,857 篇 北京大学
  • 3,806 篇 中国科学院大学
  • 3,676 篇 武汉大学
  • 3,649 篇 中南大学
  • 3,541 篇 华南理工大学
  • 3,448 篇 华中科技大学
  • 3,349 篇 西安交通大学
  • 3,191 篇 西北工业大学
  • 3,136 篇 重庆大学
  • 2,988 篇 南京大学
  • 2,971 篇 中山大学
  • 2,942 篇 吉林大学
  • 2,896 篇 天津大学
  • 2,883 篇 中国地质大学

作者

  • 4,145 篇 郑伟
  • 2,470 篇 李政
  • 1,938 篇 郑军
  • 1,720 篇 郑敏
  • 1,681 篇 郑磊
  • 1,601 篇 王征
  • 1,517 篇 郑涛
  • 1,503 篇 张政
  • 1,456 篇 王政
  • 1,398 篇 王铮
  • 1,303 篇 王正
  • 1,254 篇 郑毅
  • 1,245 篇 郑刚
  • 1,219 篇 郑勇
  • 1,116 篇 郑超
  • 1,110 篇 王峥
  • 1,107 篇 郑洁
  • 1,098 篇 郑华
  • 1,051 篇 李征
  • 1,041 篇 李铮

语言

  • 686,458 篇 中文
  • 35,464 篇 英文
  • 14 篇 日文
检索条件"作者=Xue-Yong Zheng"
721936 条 记 录,以下是1-10 订阅
排序:
Quality improvement of the dual-wavelength signals in DLOB via power equalization
收藏 引用
Optoelectronics Letters 2008年 第5期4卷 361-364页
作者: TIAN Chang-yong WU Chong-qing SUN Guang-na LI xue LI zheng-yong Key Lab. on Luminescence and Optical Information Technology of Education Ministry and Institute of Optical Information Beijing diaotong University Beijing 100044 China.
The data packet buffeting can be implemented in dual loop optical buffer (DLOB) through cross-phase modulation (XPM) between the control signal and the data packets. However, the output equality of dual wavelength... 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
Meta-analysis of immunohistochemical expression of hypoxia inducible factor-1α as a prognostic role in gastric cancer
收藏 引用
World Journal of Gastroenterology 2014年 第4期20卷 1107-1113页
作者: Shuang Lin Rui Ma xue-yong zheng Hong Yu Xiao Liang Hui Lin Xiu-Jun Cai Department of General Surgery Sir Run Run Shaw Hospital College of Medicine Institute of Minimally Invasive Surgery Zhejiang University Department of Surgery Zhejiang University Hospital Zhejiang University
AIM: To conduct a meta-analysis to evaluate the prognostic role of hypoxia inducible factor-1α (HIF-1α) expression in gastric cancer.
来源: 维普期刊数据库 维普期刊数据库 评论
Transmesosigmoid hernia:Case report and review of literature
收藏 引用
World Journal of Gastroenterology 2014年 第19期20卷 5924-5929页
作者: Bin Li Akram Assaf Yun-Guo Gong Lian-Zhong Feng xue-yong zheng Chao-Neng Wu Department of General Surgery the Second Hospital of Jiaxing Saudi Red Crescent Authority Dammam 31129Saudi Arabia Shanghai Institute of Cardiovascular Diseases Zhongshan HospitalFudan University Institute of Biomedical Science Fudan University
Transmesosigmoid hernia has previously been considered as a rare *** clinical symptoms can be ***,we report a case of acute intestinal obstruction because of transmesosigmoid *** addition,after a comprehensive review ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Effect of HCV NS_3 protein on P53 protein expression in hepatocarcinogenesis
收藏 引用
World Journal of Gastroenterology 1999年 第1期5卷 50-51页
作者: FENG De Yun, CHEN Rui xue, PENG yong, zheng Hui and YAN Ya Hui
AIM To investigate hepatocarcinogenesis by detecting the effect of HCV NS 3 protein on P53 protein expression in hepatocellular carcinoma (HCC) and pericarcinomatous liver tissue (PCLT). METHODS The expression of ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Integrated analysis of hypoxia-induced mi R-210 signature as a potential prognostic biomarker of hepatocellular carcinoma: a study based on The Cancer Genome Atlas
收藏 引用
Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2019年 第11期20卷 928-932页
作者: Yi DAI Ji-liang SHEN xue-yong zheng Tian-yu LIN Hai-tao YU Zhejiang Provincial Key Laboratory of Laparoscopic Technology Sir Run Run Shaw HospitalSchool of MedicineZhejiang UniversityHangzhou 310016China Department of General Surgery Sir Run Run Shaw HospitalSchool of MedicineZhejiang UniversityHangzhou 310016China
Hepatocellular carcinoma(HCC)is one of the most common types of liver cancer and is the second leading cause of cancer mortality with an estimated 745500 deaths annually(Jemal et al.,2011).Although new therapeutic mod... 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
Small bowel stricture complicating superior mesenteric vein thrombosis
Small bowel stricture complicating superior mesenteric vein ...
收藏 引用
2013年浙江省外科学学术年会
作者: Jin Yang Lai-gen Shen xue-yong zheng Yue-feng Zhu zheng-jie Liu Department of General Surgery Affiliated Sir Run Run Shaw HospitalSchool of MedicineZhejiang University
Summary Superior mesenteric vein(SMV) thrombosis is a relatively rare *** patients may be satisfied by the efficacy of conservative *** bowel stricture may develop due to intestine *** report describes a rare case of ... 详细信息
来源: cnki会议 评论
Laparoscopic versus Open Resection of Small Bowel Gastrointestinal Stromal Tumors: Systematic Review and Meta-analysis
收藏 引用
Chinese Medical Journal 2017年 第13期130卷 1595-1603页
作者: Ke Chen Bin Zhang Yue-Long Liang Lin Ji Shun-Jie Xia Yu Pan xue-yong zheng Xian-Fa Wang Xiu-Jun Cai Department of General Surgery Sir Run Run Shaw Hospital School of Medicine Zhejiang University Hangzhou Zhejiang 310016 China School of Medicine Zhejiang University Hangzhou Zhejiang 310058 China
Background: Laparoscopic resection (LAP) for small bowel gastrointestinal stromal tumors (GISTs) is not as common as for stomach. This study aimed to evaluate the safety and efficacy of LAP for small bowel GISTs ... 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 introducing Zr,Ti,Nb and Ce elements on externally solidified crystals and mechanical properties of high-pressure die-casting Al–Si alloy
收藏 引用
International Journal of Minerals,Metallurgy and Materials 2025年 第1期32卷 147-153页
作者: Junjie Li Wenbo Yu Zhenyu Sun Weichen zheng Liangwei Zhang Yanling xue Wenning Liu Shoumei Xiong Center of Materials Science and Engineering School of Mechanical and Electronic Control EngineeringBeijing Jiaotong UniversityBeijing 100044China Traffic&Transportation Engineering Central South UniversityChangsha 410075China Shanghai Synchrotron Radiation Facility Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201204China School of Materials Science and Engineering Tsinghua UniversityBeijing 100084China
High pressure die casting(HPDC)AlSi10Mn Mg alloy castings are widely used in the automobile *** can optimize the mechanical properties of castings through heat treatment,while the release of thermal stress arouses the... 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
Spontaneous Orientation Polarization of Anisotropic Equivalent Dipoles Harnessed by Entropy Engineering for Ultra‑Thin Electromagnetic Wave Absorber
收藏 引用
Nano-Micro Letters 2025年 第1期17卷 424-438页
作者: Honghan Wang Xinyu Xiao Shangru Zhai Chuang xue Guangping zheng Deqing Zhang Renchao Che Junye Cheng Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials Liaoning Collaborative Innovation Center for Lignocellulosic BiorefinerySchool of Light Industry and Chemical EngineeringDalian Polytechnic UniversityDalian 116034People’s Republic of China School of Life Science and Biotechnology Dalian University of TechnologyDalian 116024People’s Republic of China Department of Mechanical Engineering Hong Kong Polytechnic UniversityHung HomKowloonHong Kong 999077People’s Republic of China School of Materials Science and Engineering Qiqihar UniversityQiqihar 161006People’s Republic of China Laboratory of Advanced Materials Shanghai Key Lab of Molecular Catalysis and Innovative MaterialsAcademy for Engineering&TechnologyFudan UniversityShanghai 200438People’s Republic of China Department of Materials Science Shenzhen MSU-BIT UniversityShenzhen 517182People’s Republic of China
The synthesis of carbon supporter/nanoscale high-entropy alloys(HEAs)electromagnetic response composites by carbothermal shock method has been identified as an advanced strategy for the collaborative competition engin... 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
The complex roles of m^(6)A modifications in neural stem cell proliferation, differentiation, and self-renewal and implications for memory and neurodegenerative diseases
收藏 引用
Neural Regeneration Research 2025年 第6期20卷 1582-1598页
作者: Yanxi Li Jing xue Yuejia Ma Ke Ye xue Zhao Fangliang Ge Feifei zheng Lulu Liu Xu Gao Dayong Wang Qing Xia Department of Biochemistry and Molecular Biology College of Basic Medical SciencesHarbin Medical UniversityHarbinHeilongjiang ProvinceChina College of Basic Medical Sciences Harbin Medical UniversityHarbinHeilongjiang ProvinceChina Basic Medical Institute Heilongjiang Academy of Medical SciencesHarbinHeilongjiang ProvinceChina Key Laboratory of Heilongjiang Province for Genetically Modified Animals Harbin Medical UniversityHarbinHeilongjiang ProvinceChina Translational Medicine Research and Cooperation Center of Northern China Heilongjiang Academy of Medical SciencesHarbinHeilongjiang ProvinceChina Dongzhimen Hospital Beijing University of Chinese MedicineBeijingChina
N6-methyladenosine(m^(6)A), the most prevalent and conserved RNA modification in eukaryotic cells, profoundly influences virtually all aspects of mRNA metabolism. mRNA plays crucial roles in neural stem cell genesis a... 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