检索结果-南通市图书馆

Mobile Internet Access for High-Speed Trains via Heterogeneous Networks

在线全文

学校读者我要写书评

暂无评论

Mobile Internet Access for High-Speed Trains via Heterogeneo...

行腹膜透析治疗的终末期肾病病人的大脑异常活动模式:一项静息态脑功能MRI研究

IEEE第14届国际个人无线移动通信大会

作者： x.liang F.L.C.Ong P.M.L.Chan R.E.Sheriff P.Conforto Communicati on Systems Research Group University of Bradford Bradford UnitedKingdom Communication Systems Research Group University of Bradford Bradford UnitedKingdom Communication Systems Research Group University of BradfordBradford UnitedKingdom Communication Systems Research Group University of Bradford Bradford UnitedKingdom Alenia Spazio S.p.a.ViaG.V.Bona 85 00156RomaItaly

This paper describes how a heterogeneous networkthat comprises of satellite and W-LAN systems could beimplemented in a high-speed train environment to provideInternet access. The focus of the paper is

关键词： W-LAN satellite mobilitymanagement heterogeneousnetworks high-speedtrains mobileInternet

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

国际医学放射学杂志 2016年第2期 183-184页

作者： S.Luo R.F.Qi J.Q.Wen J.H.Zhong x.Kong x.liang 赵倩楠 Department of Medical Imaging Jinling Hospital Nanjing University School of Medicine

摘要目的对采用腹膜透析治疗的终末期肾病病人行基于低频振荡振幅(ALFF)算法的静息态脑功能MR成像(rs-MRI),以分析其自发性大脑活动模式。材料与方法本研究经机构伦理委员会批准,所有受试者均知情同意。共收集44例终末期肾病病人,其中2... 详细信息

摘要目的对采用腹膜透析治疗的终末期肾病病人行基于低频振荡振幅(ALFF)算法的静息态脑功能MR成像(rs-MRI),以分析其自发性大脑活动模式。材料与方法本研究经机构伦理委员会批准,所有受试者均知情同意。共收集44例终末期肾病病人,其中24例行腹膜透析[腹膜透析组:男16例,女8例,平均(34±8)岁],20例未行腹膜透析或血液

关键词：终末期肾病腹膜透析透析疗法静息态脑功能大脑病人 MRI

Mediating effect of self-efficacy in relationship between emotional intelligence and clinical communication competency of nurses

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

International Journal of Nursing Sciences 2016年第2期3卷 162-168页

作者： B.Zhu C.-R.Chen Z.-Y.Shi H.-x.liang B.Liu School of Nursing Henan UniversityKaifeng 475001China

Objective:This study investigates the emotional intelligence(EI),self-efficacy,and clinical communication ability of clinical nurses to explore the correlation among these three variables,and verify the mediating effect of self-efficacy on relationship between EI and communication skills.Methods:A total of 865 nurses were recruited and investigated using Wong and Law's Emotional Intelligence Scale,General Self-Efficacy Scale,and nurse clinical communication scale.Results:The scores for EI and self-efficacy of nurses were 14.23±2.61 and 25.36±5.67,respectively,which were lower than the international norm(p<0.01).The score for clinical communication ability of nurses was 4.14±0.53.The clinical communication competency of nurses was positively correlated with EI and general self-efficacy.Furthermore,selfefficacy played an intermediary role between EI and clinical communication commitment.Conclusion:Nursing administrators can improve the clinical communication ability of nurses by enhancing their self-efficacy and EI.

关键词： Clinical nurses Emotional intelligence Self-efficacy Clinical communication competency Mediating effect

肾移植术后脑默认模式网络变化:扩散张量成像和静息态功能MRI的研究

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

国际医学放射学杂志 2016年第2期 193-194页

作者： L.J.Zhang J.Q.Wen x.liang R.F.Qi U.J.Schoepf J.L.Wichmann 任冬晴 Department of Medical Imaging Jinling Hospital Medi cal School of Nanjing University

摘要目的利用扩散张量成像和静息态功能MRI来研究终末期肾病病人在肾移植术后脑部默认模式网络(DMN)结构和功能的变化。材料与方法这项前瞻性研究获得了当地医学研究伦理委员会的批准,并获得书面知情同意书。实验包括21例接受肾移植手... 详细信息

摘要目的利用扩散张量成像和静息态功能MRI来研究终末期肾病病人在肾移植术后脑部默认模式网络(DMN)结构和功能的变化。材料与方法这项前瞻性研究获得了当地医学研究伦理委员会的批准,并获得书面知情同意书。实验包括21例接受肾移植手术的终末期肾脏疾病病人[男15例,女6例;平均年龄(32±9.5)岁]和21名健康对照者[(男15名,

关键词：扩散张量静息态默认模式网络 MRI 功能

Sufficient Conditions for Amalgamated 3-Manifolds to be ∂-Irreducible

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Chinese Annals of Mathematics,Series B 2024年第2期45卷 161-172页

作者： Bing FANG Fengchun LEI liang liang School of Mathematical Sciences Dalian University of TechnologyDalian 116024LiaoningChina School of Mathematics Liaoning Normal UniversityDalian 116029LiaoningChina

In this paper,the authors give some sufficient conditions for an amalgamated 3-manifold along a compact connected surface F with boundary to be ∂-irreducible in terms of distances between some kinds of vertex subsets ... 详细信息

关键词： ∂-Irreducibility Irreducibility Amalgamated 3-manifold Curve complex Arc complex

Reliability Assessment of a New General Matching Composed Network

在线全文

学校读者我要写书评

暂无评论

China Communications 2024年第2期21卷 245-257页

作者： Zhengyuan liang Junbin liang Guoxuan Zhong Guangxi Key Laboratory of Multimedia Communications and Network Technology School of ComputerElectronics and InformationGuangxi UniversityNanning 530004China Jiangxi Engineering Laboratory of IoT Technologies for Crop Growth Ji’an 343000China

The reliability of a network is an important indicator for maintaining communication and ensuring its stable operation. Therefore, the assessment of reliability in underlying interconnection networks has become an increasingly important research issue. However, at present, the reliability assessment of many interconnected networks is not yet accurate,which inevitably weakens their fault tolerance and diagnostic capabilities. To improve network reliability,researchers have proposed various methods and strategies for precise assessment. This paper introduces a novel family of interconnection networks called general matching composed networks(gMCNs), which is based on the common characteristics of network topology structure. After analyzing the topological properties of gMCNs, we establish a relationship between super connectivity and conditional diagnosability of gMCNs. Furthermore, we assess the reliability of g MCNs, and determine the conditional diagnosability of many interconnection networks.

关键词： conditional diagnosability interconnection networks network reliability super connectivity

Review and comparison of methods and benchmarks for automatic modal identification based on stabilization diagram

在线全文

学校读者我要写书评

暂无评论

Journal of Traffic and Transportation Engineering(English Edition) 2024年第2期11卷 209-224页

作者： Min He Peng liang Jiuxian Liu Zhiqiang liang School of Architecture and Civil Engineering Xi'an University of Science and TechnologyXi'an 710064China School of Highway Chang'an UniversityXi'an 710064China

Automatic modal identification via automatically interpreting the stabilization diagram provides key technique in bridge structural health monitoring.This paper reviews the progress in the area of automatic modal identification based on interpreting the stabilization diagram.The whole identification process is divided into four steps from establishing the stabilization diagram to removing the outliers in the identification results.The criteria and algorithms used in each step in the existing studies are carefully summarized and classified.Comparisons between typical methods in cleaning and interpreting the stabilization diagram are also conducted.Real structure benchmarks used in the existing studies to validate the proposed automatic modal identification methods are also summarized.Based on the review and comparison,the specific ratio method for cleaning the stabilization diagram,the hierarchical clustering method for interpreting the stabilization diagram and the adjusted boxplot for removing the outliers in the identification results are the most suitable methods for each step.The key point of automatic modal identification based on interpreting the stabilization diagram has also discussed,and it is recommended to pay more attention to cleaning the stabilization diagram.Future study about automatic modal identification under situation with very few sensors deployed should be more concerned.This review aims to help researchers and practitioners in implementing existing automatic modal identification algorithms effectively and developing more suitable and practical methods for civil engineering structures in the future.

关键词： Bridge structural health monitoring Automatic modal identification Stabilization diagram Eriteria and methods Real structure benchmarks

A Fully-Integrated Memristor Chip for Edge Learning

在线全文

学校读者我要写书评

暂无评论

Nano-Micro Letters 2024年第9期16卷 123-127页

作者： Yanhong Zhang liang Chu Wenjun Li School of Elecronics and Information Hangzhou Dianzi UniversityHangzhou 310018People’s Republic of China

It is still challenging to fully integrate computing in memory chip as edge learning devices.In recent work published on Science,a fully-integrated chip based on neuromorphic memristors was developed for edge learning as artificial neural networks with functionality of synapses,dendrites,and somas.A crossbar-array memristor chip facilitated edge learning including hardware realization,learning algorithm,and cycle-parallel sign-and threshold-based learning(STELLAR)scheme.The motion control and demonstration platforms were executed to improve the edge learning ability for adapting to new scenarios.

关键词： Computing in memory Edge learning Fully-integrated chip

Analysis and experimental study on resistance-increasing behavior of composite high efficiency autonomous inflow control device

在线全文

学校读者我要写书评

暂无评论

Petroleum Science 2024年第2期21卷 1290-1304页

作者： liang-liang Dong Yu-Lin Zhang School of Mechatronic Engineering Southwest Petroleum UniversityChengdu610500SichuanChina State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum UniversityChengdu610500SichuanChina Oil and Gas Equipment Technology Sharing and Service Platform of Sichuan ProvinceChengdu610500SichuanChina

Bottom water coning is the main reason to reduce the recovery of horizontal bottom water reservoir. By water coning, we mean the oil-water interface changes from a horizontal state to a mound-shaped cone and breaks through to the wellbore. Autonomous inflow control device(AICD) is an important instrument maintain normal production after bottom water coning, however, the resistance increasing ability of the swirl type AICD is insufficient at present, which seriously affects the water control effect. Aiming this problem, this paper designs a multi-stage resistance-increasing and composite type AICD. The separation mechanism of oil-water two phases in this structure, the resistance form of oil-water single phase and the resistance-increasing principle of water phase are analyzed. Establishing the dual-phase multi-stage separation and resistance-increasing model, and verified by measuring the throttling pressure drop and oil-water volume fraction of the AICD, it is found that the composite type AICD has the effect of ICD and AICD at the same time, which can balance the production rate of each well section at the initial stage of production, delay the occurrence of bottom water coning. In the middle and later stages of production, water-blocking can be effectively increased to achieve water control and stable production.After structural sensitivity analysis, the influence law of various structural parameters on the water control performance of composite AICD was obtained. The simulation calculation results show that,compared with the existing swirl type AICD, composite AICD has higher sensitivity to moisture content,the water phase throttling pressure drop is increased by 4.5 times on average. The composite AICD is suitable for the entire stage of horizontal well production.

关键词： Water control Flow separation Flow resistance-increasing AICD device Simulation and experiment