咨询与建议

限定检索结果

文献类型

  • 52,616 篇 期刊文献
  • 4,037 篇 会议
  • 3,492 册 图书
  • 169 篇 学位论文
  • 12 篇 报纸

馆藏范围

  • 58,789 篇 电子文献
  • 1,550 种 纸本馆藏

日期分布

学科分类号

  • 25,027 篇 工学
    • 6,934 篇 材料科学与工程(可...
    • 3,680 篇 化学工程与技术
    • 3,142 篇 机械工程
    • 2,996 篇 生物医学工程(可授...
    • 2,170 篇 电子科学与技术(可...
    • 2,146 篇 动力工程及工程热...
    • 2,040 篇 计算机科学与技术...
    • 1,910 篇 力学(可授工学、理...
    • 1,850 篇 电气工程
    • 1,776 篇 冶金工程
    • 1,527 篇 地质资源与地质工...
    • 1,468 篇 环境科学与工程(可...
    • 1,441 篇 控制科学与工程
    • 1,329 篇 水利工程
  • 18,966 篇 医学
    • 15,749 篇 临床医学
    • 2,748 篇 医学技术(可授医学...
    • 2,480 篇 基础医学(可授医学...
    • 1,539 篇 公共卫生与预防医...
    • 1,506 篇 中西医结合
    • 1,252 篇 药学(可授医学、理...
  • 14,795 篇 理学
    • 4,497 篇 化学
    • 4,213 篇 物理学
    • 2,984 篇 生物学
    • 2,078 篇 数学
    • 1,496 篇 地质学
    • 1,403 篇 地球物理学
    • 1,388 篇 天文学
  • 5,028 篇 农学
    • 1,570 篇 作物学
    • 1,244 篇 畜牧学
  • 2,409 篇 管理学
  • 1,723 篇 经济学
    • 1,527 篇 应用经济学
  • 1,707 篇 教育学
  • 1,179 篇 法学
  • 1,125 篇 文学
  • 493 篇 历史学
  • 439 篇 艺术学
  • 377 篇 哲学
  • 84 篇 军事学

主题

  • 570 篇 ct
  • 396 篇 mri
  • 342 篇 美国
  • 334 篇 患者
  • 237 篇 病人
  • 183 篇 mr
  • 178 篇 of
  • 152 篇 治疗
  • 138 篇 analysis
  • 127 篇 and
  • 120 篇 中国
  • 112 篇 北美洲
  • 104 篇 日本
  • 88 篇 美利坚合众国
  • 81 篇 diabetes
  • 81 篇 方程
  • 80 篇 应用
  • 79 篇 cancer
  • 74 篇 acid
  • 71 篇 诊断

机构

  • 179 篇 同济医科大学附属...
  • 112 篇 北京大学
  • 109 篇 南京大学
  • 102 篇 香港理工大学
  • 68 篇 university of mi...
  • 67 篇 institute for pa...
  • 67 篇 nikhef p.o.box 4...
  • 67 篇 fysikum stockhol...
  • 67 篇 michigan state u...
  • 67 篇 institut fur the...
  • 67 篇 dept.of physics ...
  • 67 篇 compas group ins...
  • 67 篇 rudolf peierls c...
  • 66 篇 national researc...
  • 66 篇 nstitucio catala...
  • 66 篇 department of ph...
  • 66 篇 school of physic...
  • 66 篇 清华大学
  • 65 篇 ludwig-maximilia...
  • 65 篇 cea/saclay dsm/i...

作者

  • 130 篇 叶鹏
  • 85 篇 h.murayama
  • 85 篇 j.d.jackson
  • 85 篇 g.d'ambrosio
  • 85 篇 m.white
  • 83 篇 p.de jong
  • 79 篇 v.i.belousov
  • 68 篇 v.burkert
  • 55 篇 kavli ipmu
  • 53 篇 h.wang
  • 52 篇 l.pape
  • 52 篇 china
  • 47 篇 y.hayato
  • 46 篇 王铮
  • 43 篇 a.v.gritsan
  • 37 篇 刘闯
  • 33 篇 刘莉
  • 30 篇 唐光健
  • 29 篇 md
  • 28 篇 m.greco

语言

  • 37,657 篇 中文
  • 22,628 篇 英文
  • 19 篇 其他
  • 1 篇 法文
检索条件"作者=md.h.raShID"
60326 条 记 录,以下是4991-5000 订阅
排序:
Application of kernel ridge regression in predicting neutron-capture reaction cross-sections
收藏 引用
Communications in Theoretical Physics 2022年 第9期74卷 98-104页
作者: T X huang X h Wu P W Zhao State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking UniversityBeijing 100871China
This article provides the first application of the machine-learning approach in the study of the cross-sections for neutron-capture reactions with the kernel ridge regression(KRR)*** is found that the KRR approach can... 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
Carbon Fiber from Biomass Sources:A Comprehensive Review
收藏 引用
Non-Metallic Material Science 2023年 第1期5卷 14-26页
作者: md.Touhidul Islam md.Shahin howlader Din Mohamad Shuvo md.Kamal Uddin Department of Textile Engineering Mawlana Bhashani Science and Technology UniversityTangailDhaka1902Bangladesh
Global energy demand is rising,fossil fuel prices are rising,fossil fuel reserves are running out,and fossil fuel use contributes to the greenhouse *** a clean alternative source of energy to fossil fuels,biomass is b... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Elabela is a reliable biomarker for predicting early onset preeclampsia:A comparative study
收藏 引用
World Journal of Clinical Cases 2023年 第17期11卷 3993-4002页
作者: Eham Amer Ali Wassan Nori Alea Farhan Salman Taghreed S Saeed Al-Rawi Ban h hameed Raid M Al-Ani Department of Chemistry and Biochemistry Mustansiriyah UniversityBaghdad 10052Iraq Department of Obstetrics and Gynecology Mustansiriyah UniversityBaghdad 10052Iraq National Central of hematology Mustansiriyah UniversityBaghdad 10052Iraq Department of Biochemistry University of Anbar College of MedicineRamadi City 31001AnbarIraq Department of Surgery/Otolaryngology University of Anbar College of MedicineUniversity of Anbar College of MedicineRamadi City 31001AnbarIraq
BACKGROUND Preeclampsia(PE)is a multisystemic metabolic disease with an undetermined *** is a worldwide cause of maternal and perinatal morbidity,subdivided into early(EoPE)and late-onset(LoPE)according to 34 wk of ge... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Leaf Water Status and Its Relationship with Reproductive Responses of Common Bean (<i>Phaseolus vulgaris</i>L.) Genotypes under Water Stress
收藏 引用
American Journal of Plant Sciences 2014年 第11期5卷 1547-1556页
作者: Apurba Kanti Choudhury md Abdul Karim md Moynul haque Qazi Abdul Khaliq Jalal Uddin Ahmed Mohammad Mofazzal hossain Department of Agronomy Bangabandhu Sheikh Mujibur Rahman Agricultural University Gazipur Bangladesh Department of Crop Botany Bangabandhu Sheikh Mujibur Rahman Agricultural University Gazipur Bangladesh Department of horticulture Bangabandhu Sheikh Mujibur Rahman Agricultural University Gazipur Bangladesh On-Farm Research Division Bangladesh Agricultural Research Institute Joydebpur Bangladesh
Two tolerant (BB24 and BB43) and two susceptible (BARI busbean-2 and BB04) genotypes of common bean (Phaseolus vulgaris L.) were evaluated for their water status and its relationship with reproductive responses under ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Role of ERCP in the era of laparoscopic cholecystectomy for the evaluation of choledocholithiasis in sickle cell anemia
收藏 引用
World Journal of Gastroenterology 2011年 第14期17卷 1844-1847页
作者: hussain Issa Arabia Ahmed h Al-Salem Department of Internal Medicine King Fahad Specialist HospitalDammamQatif 31911Saudi Department of Pediatric Surgery Maternity and Children HospitalDammamQatif 31911Saudi Arabia
AIM:To evaluate the role of endoscopic retrograde cholangiopancreatography (ERCP) for choledocholithiasis in patients with sickle cell anemia (SCA) in the era of laparoscopic cholecystectomy (LC). METhODS:Two hundred ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
The influence of habitat heterogeneity and latitude on gamma diversity of the Nearctic Simuliidae, a ubiquitous group of stream-dwelling insects
收藏 引用
Insect Science 2018年 第4期25卷 712-720页
作者: John W. McCreadie Rachel h. Williams Sam Stutsman Debra S. Finn Peter h. Adler Department of Biology University of South Alabama Mobile Alabama USA Department of Earth Sciences Biology University of South Alabama Mobile Alabama USA Department of Integrative Biology Oregon State University Corvallis Oregon USA Department of Plant and Environmental Sciences Clemson University Clemson South Carolina USA
Among the most prominent, large-scale patterns of species richness are the increases in richness with decreasing latitude and with increasing habitat heterogeneity. Using the stream-dwelling larval and pupal stages of... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Effects of Jianpi herbal suppository on hemorheology and CD62p in patients with ulcerative colitis
收藏 引用
Journal of Traditional Chinese Medicine 2014年 第2期34卷 155-158页
作者: Jie han Jian Wang Jiaoying h Wang Department of Digestology the First Affiliated Hospital of Henan University of Chinese Medicine Queensland herbarium Department of Environment and Resource ManagementBrisbane Botanic Gardens School of Pharmacy University of Queensland
OBJECTIVE: To compare the effects of a Chinese herbal suppository(Jianpi suppository) and Western Medicine(mesalazine) on hemorheology and CD62p in patients with ulcerative colitis(UC).METhODS: In a randomized trial, ... 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 NC Algorithm for Sorting Real Numbers in <em>O</em>(nlogn/√<span style="font-size: 14px;font-weight: bold;margin-left:-2px;margin-right:2px;border-top:2px solid black;">loglogn</span>) Operations
收藏 引用
Open Journal of Applied Sciences 2019年 第5期9卷 403-408页
作者: Yijie han Sneha Mishra md Usman Gani Syed School of Computing and Engineering University of Missouri at Kansas CityKansas CityMOUSA
We apply the recent important result of serial sorting of n real numbers in time to the design of a parallel algorithm for sorting real numbers in time and operations. This is the first NC algorithm known to take oper... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Similarity measure application to fault detection of flight system
收藏 引用
Journal of Central South University 2009年 第5期16卷 789-793页
作者: KIM J h LEE S h 王洪梅 School of Mechatronics Changwon National University 9 Sarim-dong Changwon Gyeongnam 641-773 Korea
差错察觉技术与类似措施被介绍。常规类似措施的特征基于模糊数字被讨论。在距离措施的帮助下,类似措施明确地被构造。设计基于距离的类似措施对包括非凸的模糊会员功能的一般模糊会员功能适用,而模糊基于数字的类似措施有限制计算一... 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
Detection of <i>β</i>-hemoglobin Gene and Sickle Cell Disorder from Umbilical Cord Blood
收藏 引用
Journal of Biosciences and Medicines 2017年 第10期5卷 51-63页
作者: Sheikh Anika Rahman md. Shad Ebna Rahaman Shahena Aktar Shipa md. Mohosin Rana Rukshana Khan Mohammad Golam Rob Mahmud Jilwatun Noor Firuza Sultana md. Faruque Miah Department of Genetic Engineering and Biotechnology Shahjalal University of Science and Technology Sylhet Bangladesh Department of Obstetrics and Gynaecology Jalalabad Ragib-Rabeya Medical College and Hospital Sylhet Bangladesh Department of Medicine Jalalabad Ragib-Rabeya Medical College and Hospital Sylhet Bangladesh Department of Microbiology Sylhet Women’s Medical College and Hospital Sylhet Bangladesh Department of Microbiology Jalalabad Ragib-Rabeya Medical College and Hospital Sylhet Bangladesh
Sickle cell disease (SCD) is one of the most common hemoglobinopathies, which is caused by the replacement of glutamic acid with valine at the sixth position of the beta-globin amino acid chain which sickling of the e... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论