咨询与建议

限定检索结果

文献类型

  • 61,296 篇 期刊文献
  • 10,162 篇 会议
  • 3,596 册 图书
  • 41 篇 学位论文
  • 13 篇 报纸

馆藏范围

  • 73,501 篇 电子文献
  • 1,693 种 纸本馆藏

日期分布

学科分类号

  • 33,029 篇 工学
    • 7,189 篇 材料科学与工程(可...
    • 4,571 篇 化学工程与技术
    • 3,936 篇 机械工程
    • 3,712 篇 计算机科学与技术...
    • 3,354 篇 控制科学与工程
    • 3,139 篇 电子科学与技术(可...
    • 2,869 篇 生物医学工程(可授...
    • 2,579 篇 电气工程
    • 2,414 篇 力学(可授工学、理...
    • 2,218 篇 动力工程及工程热...
    • 1,907 篇 地质资源与地质工...
    • 1,881 篇 环境科学与工程(可...
    • 1,870 篇 水利工程
    • 1,825 篇 信息与通信工程
    • 1,777 篇 软件工程
    • 1,773 篇 仪器科学与技术
  • 20,401 篇 理学
    • 4,999 篇 化学
    • 4,710 篇 物理学
    • 3,985 篇 生物学
    • 3,977 篇 数学
    • 1,920 篇 地质学
    • 1,653 篇 地球物理学
  • 20,277 篇 医学
    • 16,467 篇 临床医学
    • 2,599 篇 基础医学(可授医学...
    • 2,357 篇 医学技术(可授医学...
    • 1,971 篇 公共卫生与预防医...
  • 7,476 篇 农学
    • 2,582 篇 作物学
    • 1,692 篇 畜牧学
  • 4,354 篇 管理学
    • 2,252 篇 管理科学与工程(可...
  • 2,470 篇 经济学
    • 2,196 篇 应用经济学
  • 1,806 篇 教育学
  • 1,412 篇 法学
  • 1,177 篇 文学
  • 504 篇 艺术学
  • 470 篇 历史学
  • 457 篇 哲学
  • 221 篇 军事学

主题

  • 518 篇 美国
  • 450 篇 ct
  • 314 篇 患者
  • 272 篇 mri
  • 240 篇 of
  • 230 篇 病人
  • 206 篇 北美洲
  • 153 篇 and
  • 152 篇 美利坚合众国
  • 149 篇 analysis
  • 149 篇 mr
  • 140 篇 治疗
  • 117 篇 应用
  • 115 篇 cancer
  • 110 篇 诊断
  • 107 篇 中国
  • 103 篇 方程
  • 93 篇 大洋洲
  • 93 篇 产量
  • 84 篇 设计

机构

  • 417 篇 深圳大学
  • 247 篇 山东大学
  • 129 篇 北京大学
  • 121 篇 西南民族大学
  • 99 篇 南京大学
  • 77 篇 同济医科大学附属...
  • 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...
  • 67 篇 nstitucio catala...
  • 66 篇 national researc...
  • 66 篇 department of ph...
  • 66 篇 school of physic...
  • 66 篇 ludwig-maximilia...

作者

  • 663 篇 p.r.china
  • 150 篇 p. r. china
  • 113 篇 叶鹏
  • 85 篇 h.murayama
  • 85 篇 j.d.jackson
  • 85 篇 g.d'ambrosio
  • 85 篇 m.white
  • 81 篇 p.de jong
  • 77 篇 v.i.belousov
  • 60 篇 p.r. china
  • 54 篇 刘闯
  • 53 篇 shanghai
  • 52 篇 v.burkert
  • 46 篇 beijing
  • 43 篇 朱国栋
  • 37 篇 tsinghua univers...
  • 37 篇 kavli ipmu
  • 37 篇 郭俊
  • 36 篇 l.pape
  • 36 篇 刘莉

语言

  • 44,574 篇 中文
  • 30,522 篇 英文
  • 1 篇 法文
检索条件"作者=Usha R.acharya"
75108 条 记 录,以下是1-10 订阅
排序:
Morphological and molecular evidence supports the first occurrence of two fishes, Siganus sutor(Valenciennes, 1835)and Seriolina nigrofasciata(rüppell, 1829)(Actinopterygii:Perciformes), from marine waters of Odisha coast, Bay of Bengal, India
收藏 引用
Acta Oceanologica Sinica 2020年 第6期39卷 26-35页
作者: Tapan K.Barik Surya N.Swain Bijayalaxmi Sahu Bibarani Tripathy usha r.acharya Post Graduate Department of Zoology Berhampur UniversityBerhampur 760007OdishaIndia
Marine ecosystems provide a wide variety of diverse habitats that frequently promote migration and ecological *** extent to which the geographic distribution of marine organism has reshaped by human activities remains... 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 enhanced method for predicting and analysing forest fires using an attention-based CNN model
收藏 引用
Journal of Forestry research 2024年 第4期35卷 115-127页
作者: Shaifali Bhatt usha Chouhan Department of Mathematics Bioinformatics and Computer ApplicationsMANIT BhopalBhopalIndia
Prediction,prevention,and control of forest fires are crucial on at all *** effective fire detection systems can aid in their *** study proposes a novel CNN(convolutional neural network)using an attention blocks modul... 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
Priority Based Energy Efficient MAC Protocol by Varying Data ratefor Wireless Body Area Network
收藏 引用
Computer Systems Science & Engineering 2024年 第2期48卷 395-411页
作者: r.Sangeetha usha Devi Gandhi School of Information Technology and Engineering Vellore Institute of TechnologyVelloreTamil Nadu632014India
Wireless Body Area Network(WBAN)is a cutting-edge technology that is being used in healthcare applications to monitor critical events in the human *** is a collection of in-body and on-body sensors that monitor human ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Diabetes mellitus:Is Pakistan the epicenter of the next pandemic?
收藏 引用
Chronic Diseases and Translational Medicine 2024年 第1期10卷 75-77页
作者: Muhammad Bilal Shahid Mahnoor Saeed Hamza Naeem usha Kumari King Edward Medical University LahorePakistan Dow University of Health Sciences KarachiPakistan
To the Editor,Diabetes mellitus(DM)is an endocrine disorder of chronic hyperglycemia diagnosed by fasting blood sugar levels of≥126 mg/dL or glycated hemoglobin(HbA1c)levels of≥6.5%.Type 1 DM involves a lack of insu... 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
Management of a patient with an unusual trajectory of a temporary trans-venous pacing lead
收藏 引用
World Journal of Cardiology 2024年 第6期16卷 314-317页
作者: Metesh acharya Ethan Kavanagh Sheena Garg Davorin Sef Fabio De robertis Department of Cardiac Surgery University Hospitals of Leicester NHS TrustLeicester LE39QPUnited Kingdom Department of Cardiac Surgery King’s College LondonLondon WC2R 2LSUnited Kingdom Department of Cardiac Surgery Royal Brompton and Harefield HospitalsLondon UB96JHUnited Kingdom
Perforation of the right ventricle during placement of pacing wires is a welldocumented complication and can be potentially *** of temporary pacemaker,helical screw leads and steroids use prior to implant are recognis... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Clinical profile and risk factors of Strongyloides stercoralis infection
收藏 引用
Asian Pacific Journal of Tropical Medicine 2024年 第1期17卷 43-44页
作者: rupak Chatterjee Alisha acharya Subhoroop Ghosh Shatavisa Mukherjee Tapashi Ghosh Nandini Chatterjee Netai Pramanik Department of Tropical Medicine School of Tropical MedicineKolkataWest BengalIndia Department of Microbiology School of Tropical MedicineKolkataWest BengalIndia Eastern regional Centre National One Health Program for Prevention and Control of ZoonosesSchool of Tropical Medicine KolkataWest BengalIndia Department of Clinical&Experimental Pharmacology School of Tropical MedicineKolkataWest BengalIndia Department of Medicine IPGMER-SSKM HospitalKolkataWest BengalIndia
Strongyloides(S.)stercoralis,endemic in tropical and subtropical countries,is a soil-transmitted geohelminth human parasite belonging to a group of nematodes called *** is one of the most overlooked parasitic infectio... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Brain targeted delivery of paclitaxel using endogenous ligand
收藏 引用
Asian Journal of Pharmaceutical Sciences 2016年 第3期11卷 427-438页
作者: Sanjeev r.acharya Padmanabha r.V.reddy Department of Pharmacognosy Nirma University Department of Pharmacy Institute of Pharmacy Nirma University
The objective of the present investigation was to formulate nanoparticles constructed using PLGA polymer for the effective targeted delivery to brain via nasal route. The PLGA nanoparticles were optimized using novel ... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
Oxygen functionalization-assisted anionic exchange toward unique construction of flower-like transition metal chalcogenide embedded carbon fabric for ultra-long life flexible energy storage and conversion
收藏 引用
Carbon Energy 2024年 第1期6卷 72-93页
作者: roshan M.Bhattarai Kisan Chhetri Nghia Le Debendra acharya Shirjana Saud Mai Cao Hoang Phuong Lan Nguyen Sang Jae Kim Young Sun Mok Department of Chemical Engineering Jeju National UniversityJejuRepublic of Korea Department of Nano Convergence Engineering Jeonbuk National UniversityJeonjuRepublic of Korea regional Leading research Center(rLrC)for Nanocarbon-based Energy Materials and Application Technology Jeonbuk National UniversityJeonjuRepublic of Korea Department of Chemistry Mississippi State UniversityStarkvilleMississippiUSA Nanomaterials and System Laboratory Department of Mechatronics EngineeringJeju National UniversityJejuRepublic of Korea
The metal-organic framework(MOF)derived Ni–Co–C–N composite alloys(NiCCZ)were“embedded”inside the carbon cloth(CC)strands as opposed to the popular idea of growing them upward to realize ultrastable energy storag... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Impact of Social Media Challenges on Pediatric Single-Use Detergent Sacs and Diphenhydramine Ingestions reported to United States Poison Control Centers
收藏 引用
Open Journal of Emergency Medicine 2024年 第3期12卷 104-113页
作者: Lea Dikranian Varun Vohra David Merolla usha Sethuraman Nirupama Kannikeswaran Department of Emergency Medicine Childrens Hospital of Michigan Detroit USA Michigan Poison & Drug Information Center Department of Emergency Medicine Wayne State University School of Medicine Detroit USA Department of Sociology Wayne State University School of Medicine Detroit USA Department of Emergency Medicine Central Michigan University Detroit USA
Background: Social media platforms are popular among children and often feature challenges that become viral. Notably, the Tide Pod® and Benadryl® challenges encouraged viewers to ingest these substances for their vis... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Probabilistic Analysis of Slope Using Finite Element Approach and Limit Equilibrium Approach around Amalpata Landslide of West Central, Nepal
收藏 引用
International Journal of Geosciences 2024年 第5期15卷 416-432页
作者: Mahendra acharya Khomendra Bhandari Sandesh Dhakal Aasish Giri Prabin Kafle Central Department of Geology Tribhuvan University Kathmandu Nepal Department of Geology Tri-Chandra Multiple Campus Tribhuvan University Kathmandu Nepal Sri revana Siddeshwara Institute of Technology Visvesvaraya Technological University Bengaluru India
The stability study of the ongoing and recurring Amalpata landslide in Baglung in Nepal’s Gandaki Province is presented in this research. The impacted slope is around 200 meters high, with two terraces that have diff... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论