期刊文献+
共找到4,526篇文章
< 1 2 227 >
每页显示 20 50 100
图像识别技术在智慧阅读空间建设中的应用探析
1
作者 李岩峰 《中文科技期刊数据库(文摘版)图书情报》 2026年第1期116-119,共4页
智慧阅读空间作为现代知识服务的重要载体,其智能化转型依赖于前沿信息技术的深度集成。本文聚焦于图像识别技术在这一特定场景下的融合与应用。研究首先厘清了图像识别技术与智慧阅读空间的核心概念与内涵。进而系统剖析了支撑该应用... 智慧阅读空间作为现代知识服务的重要载体,其智能化转型依赖于前沿信息技术的深度集成。本文聚焦于图像识别技术在这一特定场景下的融合与应用。研究首先厘清了图像识别技术与智慧阅读空间的核心概念与内涵。进而系统剖析了支撑该应用的技术基础要素与数据处理流程。论文的核心部分深入探析了图像识别技术在空间资源自动化管理、用户行为非接触式感知、环境状态动态调控、个性化服务精准触达以及空间安全智能保障五个维度的具体实现路径与价值。研究表明,图像识别技术能够有效破解传统阅读空间在效率、体验与安全方面的瓶颈,为构建可知、可感、可应的下一代智慧阅读服务生态提供了关键的技术支点。 展开更多
关键词 图像识别 智慧阅读空间 计算机视觉 智能化服务 空间管理
暂未订购
美国《保健物理》(Health Physics)杂志英文摘要(2025年129卷第6期)
2
《辐射防护》 北大核心 2026年第2期170-174,共5页
Neutron Activation Dose Assessment Based on a Human Head Phantom Post-BNCT Guanchao Wu1,2, Zuokang Lin2, Zijian Zhang1,2, Zhiyuan Lin1,2, Yinan Zhu2, Ye Dai2 and Zhimin Dai2(1.ShanghaiTech University, Shanghai, 201210... Neutron Activation Dose Assessment Based on a Human Head Phantom Post-BNCT Guanchao Wu1,2, Zuokang Lin2, Zijian Zhang1,2, Zhiyuan Lin1,2, Yinan Zhu2, Ye Dai2 and Zhimin Dai2(1.ShanghaiTech University, Shanghai, 201210, China;2.Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China) 展开更多
关键词 neutron activation dose assessment dose assessment zhimin dai shanghaitech human head phantom yinan zhu ye dai zuokang lin neutron activation
暂未订购
美国《保健物理》(Health Physics)杂志英文摘要(2026年130卷第1期)
3
《辐射防护》 北大核心 2026年第2期174-181,共8页
Evaluating Adherence to Safety Standards for Physical Space Design, Equipment, and Patient and Staff Protection in Magnetic Resonance Imaging Centers:A Descriptive Cross-sectional Study Amirreza Sadeghinasab1, Jafar F... Evaluating Adherence to Safety Standards for Physical Space Design, Equipment, and Patient and Staff Protection in Magnetic Resonance Imaging Centers:A Descriptive Cross-sectional Study Amirreza Sadeghinasab1, Jafar Fatahiasl2, Mahmoud Mohammadi-Sadr1, Masoud Heydari Kahkesh3, and Marziyeh Tahmasbi2(1.Department of Medical Physics, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran;2.Department of Radiologic Technology, School of Allied Medical Sciences, Ahvaz, Jundishapur University of Medical Sciences, Ahvaz, Iran;3.Department of Radiology and Radiotherapy, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran)Abstract:Magnetic resonance imaging(MRI) has revolutionized disease diagnosis and treatment.However, the technology poses safety risks, such as exposure to magnetic fields, RF pulses, and cryogens, necessitating strict adherence to safety protocols to protect patients and healthcare workers. 展开更多
关键词 adherence safety standards magnetic resonance imaging physical space design patient staff protection allied medical sciences safety standards medical physics radiologic technology
暂未订购
Health Phys.Abstracts,Volume 129,Number 4
4
《辐射防护》 北大核心 2026年第1期87-91,共5页
Analysis Method of ^(131)I Activity in Carbon Cartridge and Internal Dose Assessment for Nuclear Medicine Workers.Shuo Wang1,Fei Tuo1,Jian-feng Zhang1,Xiao-liang Li1,Bao-lu Yang1,Qiang Zhou1,Ze-shu Li1,Shu-ying Kong1,... Analysis Method of ^(131)I Activity in Carbon Cartridge and Internal Dose Assessment for Nuclear Medicine Workers.Shuo Wang1,Fei Tuo1,Jian-feng Zhang1,Xiao-liang Li1,Bao-lu Yang1,Qiang Zhou1,Ze-shu Li1,Shu-ying Kong1,and Wei-hao Qin1(1.National Institute for Radiological Protection,Chinese Center for Disease Control and Prevention,Beijing,100088,China.) 展开更多
关键词 nuclear medicine workers health physics carbon cartridge internal dose assessment analysis method I activity
暂未订购
《理化检验-化学分册》征稿简则
5
作者 《理化检验-化学分册》编辑部 《理化检验(化学分册)》 北大核心 2026年第1期25-25,34,共2页
《理化检验-化学分册》杂志创刊于1963年,系中国机械工程学会理化检验分会会刊,是由上海科学院主管、上海材料研究所有限公司主办的技术类刊物,大16开本,每月18日出版。本刊为中文核心期刊,中国期刊方阵双效期刊,已被国内外多种数据库... 《理化检验-化学分册》杂志创刊于1963年,系中国机械工程学会理化检验分会会刊,是由上海科学院主管、上海材料研究所有限公司主办的技术类刊物,大16开本,每月18日出版。本刊为中文核心期刊,中国期刊方阵双效期刊,已被国内外多种数据库收录。主要报道各种材料,以及涉及生命科学、生物工程、环境保护、食品卫生、商品检验等专业领域分析化学的新理论、新技术、新方法、新经验及新的应用性研究成果。读者为工厂、科研单位和大专院校中从事分析化学专业工作的有关测试、科研及教学人员。 展开更多
关键词 新理论 理化检验 新方法 新技术 化学分册
暂未订购
Health Phys.Abstracts,Volume 129,Number 5
6
《辐射防护》 北大核心 2026年第1期91-96,共6页
Discrete Bayesian Dose-response Analysis under Dose Uncertainty.Eduard Hofer1(1.3 Constance Road,Claremont,Cape Town 7708,South Africa.)Abstract:Establishing a relationship between disease and dose requires each indiv... Discrete Bayesian Dose-response Analysis under Dose Uncertainty.Eduard Hofer1(1.3 Constance Road,Claremont,Cape Town 7708,South Africa.)Abstract:Establishing a relationship between disease and dose requires each individual in the population under investigation to be known by disease status and by the value of the dose received. 展开更多
关键词 Bayesian analysis dose response relationship disease dose dose uncertainty
暂未订购
《高等学校化学学报》征稿简则
7
《高等学校化学学报》 北大核心 2026年第4期I0003-I0004,共2页
《高等学校化学学报》是中华人民共和国教育部委托吉林大学和南开大学主办的化学学科综合性学术期刊,重点报道化学学科及其相关学科领域中最新的、具有原创性的实验或理论研究成果。
关键词 化学学科 征稿简则 学术期刊 实验成果
暂未订购
美国《保健物理》(Health Physics)杂志英文摘要(2026年130卷第2期)
8
《辐射防护》 北大核心 2026年第2期181-188,共8页
Topical Issues for the Future of Radiation Protection Kevin Nelson1, Renate Czarwinski2, Charles Wilson3, Bernard LeGuen4, Jing Chen5, Hildegarde Annie Vandenhove6, Shengli Niu7, Thierry Schneider8, John Damilakis9,10... Topical Issues for the Future of Radiation Protection Kevin Nelson1, Renate Czarwinski2, Charles Wilson3, Bernard LeGuen4, Jing Chen5, Hildegarde Annie Vandenhove6, Shengli Niu7, Thierry Schneider8, John Damilakis9,10 and Peter Alfred Bryant11,12(1.Mayo Clinic, Scottsdale, AZ 85259. 展开更多
关键词 topical issues radiation protection future radiation protection
暂未订购
Instructions for Authors
9
《International Journal of Minerals,Metallurgy and Materials》 2026年第2期I0001-I0001,共1页
International Journal of Minerals,Metallurgy and Materials is dedicated to the publication and the dissemination of original research articles(and occasional invited reviews)in the fields of Minerals,Metallurgy and Ma... International Journal of Minerals,Metallurgy and Materials is dedicated to the publication and the dissemination of original research articles(and occasional invited reviews)in the fields of Minerals,Metallurgy and Materials.It is covered by EI Compendex,SCI Expanded,Chemical Abstract,etc. 展开更多
关键词 METALLURGY MINERALS invited reviews original research articles ei compendex sci expanded chemical abstract materials
暂未订购
高职院校图书馆文献资源建设的问题与改进方案
10
作者 齐晓伟 《华东纸业》 2025年第12期151-153,共3页
本文针对高职院校图书馆文献资源建设存在的核心问题展开分析,指出馆藏在资源结构、经费保障、数字化建设、供需对接及管理机制五个方面面临的严峻挑战。为应对这些问题,提出了系统性的改进方案:通过优化资源结构与强化专业特色提升馆... 本文针对高职院校图书馆文献资源建设存在的核心问题展开分析,指出馆藏在资源结构、经费保障、数字化建设、供需对接及管理机制五个方面面临的严峻挑战。为应对这些问题,提出了系统性的改进方案:通过优化资源结构与强化专业特色提升馆藏针对性;借助拓宽经费渠道与实施精准投入提高资源使用效益;加快数字化转型以构建智慧服务平台;建立需求导向的资源配置机制;完善管理机制保障可持续发展。这些措施共同构成了提升高职院校图书馆文献资源建设水平与服务效能的有效路径。 展开更多
关键词 资源建设 专业契合 经费保障 数字化转型
原文传递
基于知识图谱技术的员工建言行为研究述评与展望
11
作者 周济方 刘晓红 《现代管理》 2025年第2期1-14,共14页
支持员工建言行为是人力资源管理的基本理念。文章筛选2000年至2024年中国知网(CNKI)和Web of Science部分期刊关于员工建言行为的主题文献,基于知识图谱技术工具CiteSpace开展文献计量分析。分别述评员工建言行为文献的年度发文量、关... 支持员工建言行为是人力资源管理的基本理念。文章筛选2000年至2024年中国知网(CNKI)和Web of Science部分期刊关于员工建言行为的主题文献,基于知识图谱技术工具CiteSpace开展文献计量分析。分别述评员工建言行为文献的年度发文量、关键词共现、关键词聚类、关键词时区变化和关键词突现等内容,比较国内外研究方法的差异,归纳员工建言行为的前因后果关系和前沿热点。在现有研究基础上,从自变量、中介变量、调节变量和行为后果四个方面提出员工建言行为的整合模型,并就情境要素影响、建言行为与沉默行为对立关系演化以及行为结果三个方面对员工建言行为未来研究做出展望。Supporting employee voice behavior is a fundamental concept in human resource management. This article selects literature on employee voice behavior from the China Knowledge Network (CNKI) and some journals from Web of Science between 2000 and 2024. Using the knowledge graph technology tool CiteSpace, a bibliometric analysis is conducted. The article reviews and comments on the annual publication volume, keyword co-occurrence, keyword clustering, keyword time zone changes, and keyword emergence in the literature on employee voice behavior. It compares the differences in research methods between domestic and international studies, summarizes the causes and consequences of employee voice behavior, and identifies the frontiers and hotspots in this field. Based on existing research, an integrated model of employee voice behavior is proposed from four aspects: independent variables, mediating variables, moderating variables, and behavioral consequences. The article also looks forward to future research on employee voice behavior in terms of the influence of situational factors, the evolution of the oppositional relationship between voice behavior and silence behavior, and the outcomes of the behavior. 展开更多
关键词 员工建言行为 文献计量分析 知识图谱技术 综述
暂未订购
基于CiteSpace的寿胎丸相关研究可视化分析
12
作者 李春萍 秦明春 +1 位作者 周桂林 韩宛谕 《中医学》 2025年第1期448-455,共8页
目的:本研究旨在利用知识图谱可视化技术,深入分析寿胎丸研究的现状、热点和成果,为未来相关领域的研究提供重要参考。方法:在中国知网中以关键词“寿胎丸”为检索主题,搜索时间范围为2004年1月1日至2023年12月31日,筛选相关文献,使用Ci... 目的:本研究旨在利用知识图谱可视化技术,深入分析寿胎丸研究的现状、热点和成果,为未来相关领域的研究提供重要参考。方法:在中国知网中以关键词“寿胎丸”为检索主题,搜索时间范围为2004年1月1日至2023年12月31日,筛选相关文献,使用CiteSpace 6.3.R1测量学分析文献,对相关知识图谱进行绘制和分析。结果:检索到596篇文章,其中以雷磊为发文量最多的作者,湖南中医药大学为发文量最多的机构;寿胎丸相关研究的高频关键词有:寿胎丸,先兆流产,孕激素,胎动不安等;重点关键词聚类有21类。结论:寿胎丸的研究热点在实验研究和临床应用上,联合应用治疗是今后研究趋势。Objective: This study aims to study is to deeply analyze the current status, hotspots and achievements of Shoutai Wan research by using knowledge graph visualization technology, which will provide an important reference for future research in related fields. Methods: In CNKI, the keyword “Shoutai Wan” was used as the search topic, and the search time was from January 1, 2004 to December 31, 2023. Relevant literature was screened, and the literature was analyzed by using CiteSpace 6.3.R1 measurements, and the relevant knowledge maps were drawn and analyzed. Results: 596 articles were retrieved, in which Lei Lei was the author with the largest number of articles, and Hunan University of Traditional Chinese Medicine was the institution with the largest number of articles;high-frequency keywords for Shoutai Wan-related research included Shoutai Wan, preeclampsia, progesterone, and fetal restlessness, etc.;the keyword focus clustered in 21 categories. Conclusion: The research hotspot of Shoutai Wan is in experimental research and clinical application, and the combined application of treatment is the future research trend. 展开更多
关键词 寿胎丸 研究热点 可视化分析 CITESPACE
暂未订购
中性粒细胞胞外陷阱与脓毒症关系的全球热点研究与趋势:2004~2024年文献计量分析
13
作者 栾桀 梁舒琳 +4 位作者 苗水山 姜莉 徐伟康 查贤志 王培戈 《临床医学进展》 2025年第1期1932-1946,共15页
Objective: To investigate the relationship between neutrophil extracellular traps (NETs) and sepsis, which can help elucidate the specific molecular mechanisms of sepsis. The causal link between NETs and sepsis progre... Objective: To investigate the relationship between neutrophil extracellular traps (NETs) and sepsis, which can help elucidate the specific molecular mechanisms of sepsis. The causal link between NETs and sepsis progression has been extensively validated. However, few articles have utilized bibliometric methods to analyze research in this field. Therefore, this paper analyzes the research hotspots and trends in NETs and sepsis over the past two decades from a bibliometric perspective, aiming to provide new insights into the fundamentals and research in this field. Methods: We collected publications related to neutrophil extracellular traps (NETs) in the field of sepsis from 2004 to 2024 from the Web of Science Core Collection. Publications were limited to articles and reviews, and the language was restricted to English. VOSviewer and COOC software were used to conduct bibliometric and knowledge map analysis of research collaboration networks, journals, cited references, and keywords in this field. Results: From 2004 to 2024, the Web of Science Core Collection included 720 articles on NETs and sepsis research, including 452 articles and 226 reviews. Since 2022, the number of articles in this field has rapidly increased. The United States and China are the primary contributors in this field. Articles on this topic have been published in 294 academic journals. The author with the most publications is Liaw Patricia C., and Frontiers in Immunology is the most cited journal. In addition to “sepsis” and “neutrophil extracellular traps,” high-frequency terms in the keyword co-occurrence network analysis include inflammation, neutrophils, platelets, thrombosis, Covid-19, infection, innate immunity, and septic shock. An analysis of keyword trends using the burst test indicates that thrombosis and ARDS are currently at the forefront of research in this field. ARDS is currently a hot topic regarding the related roles and potential mechanisms of NETs and sepsis in this field. Conclusion: This study provides a bibliometric analysis and visualization of key research areas in sepsis and NETs over the past 20 years. The results indicate that thrombosis and ARDS are currently hot topics regarding the related roles and potential mechanisms of NETs and sepsis in this field. 展开更多
关键词 中性粒细胞胞外陷阱 脓毒症 文献计量学
暂未订购
美国《保健物理》(Health Physics)杂志英文摘要
14
《辐射防护》 北大核心 2025年第6期655-658,共4页
INTERNAL DOSE RESEARCH PAPERS INTDOSKIT:An R-Code for Calculation of Dose Coefficients and Studying Their Uncertainties Bastian Breustedt 1,Niranjan Chavan 2,Thomas Makumbi 2(1.Karlsruhe Institute of Technology,Instit... INTERNAL DOSE RESEARCH PAPERS INTDOSKIT:An R-Code for Calculation of Dose Coefficients and Studying Their Uncertainties Bastian Breustedt 1,Niranjan Chavan 2,Thomas Makumbi 2(1.Karlsruhe Institute of Technology,Institute of Biomedical Engineering(IBT),Fritz-Haber-Weg 1,D-76131 Karlsruhe,Germany;2.Karlsruhe Institute of Technology,Institute for Thermal Energy Technology and Safety(ITES),Hermann-von-Helmholtz-Platz 1,76344 EggensteinLeopoldshafen,Germany)Abstract:An R-code,which allows the calculation of the time dependent activity distribution based on ICRP reference models,the number of decays in a commitment period,and the dose coefficients for tissues and organs of the human body,has been developed.R Language was chosen due to its powerful mathematical and statistical modeling features,as well as its graphical capabilities. 展开更多
关键词 CALCULATION internal dose dose coefficients internal dose research papers calculation dose coefficients calculation ti UNCERTAINTIES R code
暂未订购
美国《保健物理》(Health Physics)杂志英文摘要(2025年128卷第6期)
15
《辐射防护》 北大核心 2025年第5期539-544,共6页
Evaluation of Gamma Index Analysis for Detecting Errors in Patient-specific Quality Assurance in Intensity Modulated Radiotherapy Taylan Tugrul1(1.Department of Radiation Oncology,Medicine Faculty of Van Yüzü... Evaluation of Gamma Index Analysis for Detecting Errors in Patient-specific Quality Assurance in Intensity Modulated Radiotherapy Taylan Tugrul1(1.Department of Radiation Oncology,Medicine Faculty of Van YüzüncüYıl University,Van,Turkey)Abstract:Quality assurance practices performed before treatment are believed to identify various potential errors.In this study,2-dimensional(2D)dosimetric results were analyzed by making some intentional mistakes in six different treatment plans.In this way,the detectability of errors was investigated.In all segments of all treatment plans,one of the multileaf collimators was kept fixed at different positions on the central axis.In addition to multileaf collimators error,gantry error was also examined in the study.The dose distribution results obtained by Treatment Planning System(TPS)were compared with those obtained by the 2D array device,both as local calculation and global calculation methods,using the gamma analysis method.When the results are examined in the case where the Multi-leaf collimators(MLC)is fixed at the 1 cm position. 展开更多
关键词 making some intentional mistakes six different treatment plansin multileaf collimators patient specific quality assurance gantry error intensity modulated radiotherapy assurance practices gamma index analysis
暂未订购
《理化检验-化学分册》征稿简则
16
作者 《理化检验-化学分册》编辑部 《理化检验(化学分册)》 北大核心 2025年第9期1094-1094,共1页
《理化检验-化学分册》杂志创刊于1963年,系中国机械工程学会理化检验分会会刊,是由上海科学院主管、上海材料研究所有限公司主办的技术类刊物,大16开本,每月18日出版。本刊为中文核心期刊,中国期刊方阵双效期刊,已被国内外多种数据库... 《理化检验-化学分册》杂志创刊于1963年,系中国机械工程学会理化检验分会会刊,是由上海科学院主管、上海材料研究所有限公司主办的技术类刊物,大16开本,每月18日出版。本刊为中文核心期刊,中国期刊方阵双效期刊,已被国内外多种数据库收录。主要报道各种材料,以及涉及生命科学、生物工程、环境保护、食品卫生、商品检验等专业领域分析化学的新理论、新技术、新方法、新经验及新的应用性研究成果。读者为工厂、科研单位和大专院校中从事分析化学专业工作的有关测试、科研及教学人员。 展开更多
关键词 新理论 理化检验 新方法 新技术 化学分册
暂未订购
《理化检验-化学分册》征稿简则
17
作者 《理化检验-化学分册》编辑部 《理化检验(化学分册)》 北大核心 2025年第10期1189-1189,1200,共2页
《理化检验-化学分册》杂志创刊于1963年,系中国机械工程学会理化检验分会会刊,是由上海科学院主管、上海材料研究所有限公司主办的技术类刊物,大16开本,每月18日出版。本刊为中文核心期刊,中国期刊方阵双效期刊,已被国内外多种数据库... 《理化检验-化学分册》杂志创刊于1963年,系中国机械工程学会理化检验分会会刊,是由上海科学院主管、上海材料研究所有限公司主办的技术类刊物,大16开本,每月18日出版。本刊为中文核心期刊,中国期刊方阵双效期刊,已被国内外多种数据库收录。主要报道各种材料,以及涉及生命科学、生物工程、环境保护、食品卫生、商品检验等专业领域分析化学的新理论、新技术、新方法、新经验及新的应用性研究成果。读者为工厂、科研单位和大专院校中从事分析化学专业工作的有关测试、科研及教学人员。 展开更多
关键词 新理论 理化检验 新方法 新技术 化学分册
暂未订购
《高等学校化学学报》征稿简则
18
《高等学校化学学报》 北大核心 2025年第10期I0001-I0002,共2页
《高等学校化学学报》是中华人民共和国教育部委托吉林大学和南开大学主办的化学学科综合性学术期刊,重点报道化学学科及其相关学科领域中最新的、具有原创性的实验或理论研究成果。
关键词 化学学科 征稿简则 学术期刊 实验成果
暂未订购
Health Phys. Abstracts,Volume 127,Number 6
19
《辐射防护》 北大核心 2025年第2期189-191,共3页
Indoor Radon Concentrations in Severe Cold Area and Cold Area and Impact of Energy-saving Design on Indoor Radon in China Yunyun Wu1, Yanchao Song1, Changsong Hou1, Hongxing Cui1, Bing Shang1, Haoran Sun1(1. Key Labor... Indoor Radon Concentrations in Severe Cold Area and Cold Area and Impact of Energy-saving Design on Indoor Radon in China Yunyun Wu1, Yanchao Song1, Changsong Hou1, Hongxing Cui1, Bing Shang1, Haoran Sun1(1. Key Laboratory of Radiological Protection and Nuclear Emergency, China CDC&National Institute for Radiological Protection,Chinese Center for Disease Control and Prevention, Beijing 100088, China)Abstract:This study investigated indoor radon concentrations in modern residential buildings in the Cold Area and Severe Cold Area in China. A total of 19 cities covering 16 provinces were selected with 1, 610 dwellings measured for indoor radon concentration. The arithmetic mean and geometric mean of indoor radon concentration were 68 Bq m-3 and 57 Bq m-3,respectively. It was found that indoor radon concentrations were much higher in the Severe Cold Area than those in the Cold Area.The indoor radon concentrations showed an increasing trend for newly constructed buildings. 展开更多
关键词 CONCENTRATION RADON ARITHMETIC
暂未订购
《环境与职业医学》被全球OA期刊索引收录
20
作者 《环境与职业医学》编辑部 《环境与职业医学》 北大核心 2025年第9期1137-1137,共1页
全球OA期刊索引(OA Journal Index,OAJ)是中国科学院文献情报中心与中国教育图书进出口有限公司共建的“开放获取资源评价”联合实验室研发的学术服务平台。OAJ立足中国开放科学实践需求,遵循国际学术评价准则,通过专家评议和数据分析... 全球OA期刊索引(OA Journal Index,OAJ)是中国科学院文献情报中心与中国教育图书进出口有限公司共建的“开放获取资源评价”联合实验室研发的学术服务平台。OAJ立足中国开放科学实践需求,遵循国际学术评价准则,通过专家评议和数据分析相结合的方式,从学术质量、出版规范、开放政策、科研诚信、社会影响力等维度对全球学术期刊进行综合评估,旨在遴选覆盖全学科领域的高水平完全开放获取期刊。 展开更多
关键词 全球OA期刊索引 OAJ 开放获取资源评价
原文传递
上一页 1 2 227 下一页 到第
使用帮助 返回顶部