Results 31 to 40 of about 24,395 (163)
Research and Design of Fujian Electric Power Communication Back bone Optical Transmission NetworkExpansion [PDF]
, 2014 福建电力通信传输网络主要采用光纤通信技术，其他传统通信模式为补充的运行方式，初步建成以光纤通信为主，辅以微波通信、电力线载波通信、卫星通信的电力通信传输网，业务范围也不仅仅是过去的电力调控运行，已发展到目前贯穿电力生产、调度、基建、营销、联合办公等，涵盖电力公司的生产与经营的全部过程，传送着与电力生产与运营以及企业管理相关的语音、数据和图像业务。然而随着电网建设的飞速发展以及国网公司智能电网建设的开展，电力生产与企 业管理的数据业务暴增，福建电力主干通信传输网现有骨干网络将难以满足日益 ...
黄润国
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Integrative Conservation, Volume 5, Issue 1, Page 125-136, March 2026.We collated detections of the sun bear from new and previously published camera trap studies across its range. We then analysed these detections at two different spatial scales to assess the habitat associations and diel activity of this species. We found that the sun bear is tolerant to moderate habitat disturbances. ABSTRACT Degraded tropical forests,
Alexander Hendry +5 more
wiley +1 more source
Dianci bileiqi, 2013 输电线路在线监测是实现输电线路状态检测和检修的重要手段。为评价输电线路在线监测可靠性,采用层次分析法建立了以环境因素、监测装置本体、人员因素、管理因素的可靠性评价体系结构,在可靠性评价体系基础上建立了输电线路可靠性多级模糊综合评价模型,对武汉地区一条线路的在线监测的可靠性进行了评估,确定了该条线路的在线监测可靠性等级为差,可靠性差主要是由于装置本体原因引起的。
王国胜, 梁瑞玲, 舒应军
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Optimum sizing of PV/Wind hybrid system (I) CAD method [PDF]
, 2017 2003-2004 > Academic research: refereed > Publication in refereed journalVersion of ...
Ai, B, Liao, X, Shen, H, Yang, HX
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Aqueous zinc‐ion batteries (AZIBs) hold great promise for safe and sustainable energy storage, but their commercialization is impeded by severe Zn dendrite growth and interfacial instability. To address these challenges, we propose a defect engineering strategy employing ultrafine ZnAl2O4 (ZAO) nanoparticles (∼5 nm) with oxygen vacancy defects
Yilun Ren +9 more
wiley +1 more source
Failure analysis of four tube in power station boiler [PDF]
, 2015 火力发电厂是我国供电主体，约占总体发电量的70%。大型火电厂的安全事关电网的安全运行，而火电厂中的锅炉运行的可靠性是影响发电厂运行可靠性的首要因素，尤其是锅炉四小管的损坏泄漏对机组的安全运行影响最大，是火力发电厂的常见事故，一般占机组故障的60%-70%。锅炉经常由于四小管设计、制造、安装、运行、修理改造、管理等环节的问题以及长期在高温、高压、腐蚀、冲刷等恶劣条件下运行等原因而造成爆管并导致停炉。只有掌握四小管各种类型爆管的失效机理，才能有的放矢开展监督检验工作，寻找有效的管理和技术防治对策 ...
左仁红
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Perovskite quantum dots (QDs) have been considered as promising emitters for lighting and display applications, but they suffer from poor thermal stability under operation. Herein, we introduce sub‐micrometer Ag particles to simultaneously enhance the luminescence intensity and thermal stability of perovskite QDs.
Zhihao Feng +5 more
wiley +1 more source
Design and Implementation of Address Book Management System Based on JAVA [PDF]
, 2015 随着社会的发展，科技的进步，人与人之间的沟通与接触变得越来越简单、快捷，而人际关系的维系也逐渐成为了人们生活中不可避开的课题，维系良好的社会关系已经成为了人们和谐生活的一个重要组成部分。沟通是维持良好社会关系的一个重要手段，常与家人、朋友、同事、同学保持联系，不仅可培养良好的人际关系，还可以增进彼此的感情。可是，随着联系人的逐渐增多，如何高效管理联系人信息、如何有效地保存联系人的信息、如何方便地转移联系人的信息便成为了联系人管理的一个一个问题。为此，本文通过对通讯管理系统进行需求分析 ...
曾凡真
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Institutional Arrangements and Procurement Procedures for Post‐War Reconstruction in Yemen
Digest of Middle East Studies, Volume 35, Issue 2, Spring 2026.ABSTRACT The reconstruction of Europe and Japan after World War II is often credited to US political will and financial aid. However, differing outcomes suggest that other factors played a crucial role. Factors such as security, a functioning government, pre‐war development levels, and wartime destruction played crucial roles in determining the ...
Sumaia A. Al‐Kohlani +1 more
wiley +1 more source
Gaoya dianqi, 2019 可靠性分配是直流隔离开关底座系统可靠性设计的重要环节,其结果直接影响整机的设计方案。为了能够准确得到在一定约束条件下的可靠性优化分配结果,确立了基于直流隔离开关底座系统故障机理的可靠性分配方法,首先根据FTA和FMEA的故障分析结果,确定各个零部件的故障综合因子,然后将可靠性目标根据一定的数学关系式分配到各个零部件,从而实现直流隔离开关底座系统的总体可靠性有效地分配到各个零部件上。该方法不仅将FTA和FMEA两种故障分析方法相结合,而且还对原始可靠性分配函数进行了改进,提高了可靠性的分配效率 ...
张任 +9 more
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