Results 11 to 20 of about 2,741 (155)
ABSTRACT Introducing oxygen vacancies has emerged as an essential strategy to affect the sensing properties of nanomaterials. However, existing methods for manipulating oxygen require high cost, complex operation, and harsh conditions. Herein, a simple NH4+‐assisted heat treatment approach was designed to regulate the concentration of oxygen vacancies ...
Qiu‐Yue Zheng +10 more
wiley +1 more source
高端换流变及防火墙区域作为特高压换流站重要的电气功能区域,具有设备跨度大,结构高耸,抗震性能要求高等特点。以西南地区某±800 kV换流站为研究对象,首先结合模态分析研究了高端换流变及防火墙上电气设备抗震薄弱环节,然后对±800 kV换流变及防火墙上的±500 k V避雷器、互感器、绝缘子等设备进行抗震分析,得到设备应力、位移等响应。分别对高压换流变及防火墙上电气设备进行了隔震设计及减震设计,最后开展了9度设防地震作用下各设备结构整体的地震响应计算,对比分析了隔震、减震前后各电气设备套管关键部位的应力 ...
孙宇晗, 程永锋, 卢智成, 高坡
doaj
A Study on Development Strategies of Shanghai Yuanrong Industrial Co. Ltd. [PDF]
改革开放以来建筑业在我国得到了持续快速的发展,特别是近年来建筑业在国民经济中的支柱产业地位不断加强,对国民经济的拉动作用更加显著。在这种经济政策和市场环境下为建筑电气设备的安装市场也带来了较好的发展机遇。但是随着市场经济的发展,建筑安装企业面临着激烈的市场竞争,越来越多的国内国际市场也有待开发。 上海原荣实业有限公司(下文简称为YR公司)创建于2002年,是一家专业建筑电气、设备安装施工企业。公司先后参与上海浦项商务广场、韩国驻沪总领事馆、喜星(南京)电子有限公司等多项工程项目的承建 ...
安红权
core
ABSTRACT The design of nanoparticles confined in hollow N‐doped carbon structures is crucial for improving the oxygen reduction reaction (ORR) kinetics, yet achieving this remains a significant challenge. In this work, hollow porous nitrogen‐doped carbon encapsulated FeP/Fe2P (H‐FeP/Fe2P) were successfully constructed via a templating method combined ...
Li‐Xia Wang +8 more
wiley +1 more source
Design and Implementation of Assets Management Information System for a Container Wharf [PDF]
资产管理信息系统主要围绕设备资产、物资管理的核心内容构建,需要管理的设备主要包括港口机械、船舶、电气设备、场内机动车、车辆、车间设备等,需要管理的物资主要包括:机电配件、轮胎、钢材、润滑油、钢丝绳、工索具、水泥、输送带、油料、劳保用品、五金等;相关单位包括若干装卸生产公司及相关辅助生产单位,以及负责十多种大宗物资集中采购的物资管理部门。 采用集中式应用模式,实现对港口相关设备运行、使用、维修保养、状态变更等全寿命周期的全过程管理,实现对港口的设备资产、物资的集中统一管理,实现设备及配件信息的全公司共享 ...
黄桂彬
core
ABSTRACT Moist‐electric generators (MEGs) harness energy from ubiquitous ambient humidity, which has emerged as a promising way to collect energy irrespective of location and time. This study presents a high‐performance MEG employing a bilayer Janus nanofiber membrane: a hydrophilic layer (lithium chloride/citric acid/polyvinyl alcohol) for enhanced ...
Peng Chen +7 more
wiley +1 more source
Research on Order Forecasting and Management of Company A [PDF]
在竞争趋于同质化的今天,需求预测作为供应链运作的起点,其准确性将直接影响企业运行成本和客户满意度。而电气设备制造业面向订单的生产模式,使得电气设备制造企业将重心更多地放在供应商管理上,忽视了供应链前端需求预测的管理,从而导致提前期增加、采购成本上升等诸多问题。因此电气设备制造企业需要建立起一套有效且可持续发展的预测管理体系,以提升预测准确性并牵动供应链的后续活动。 本文在此背景下,以A公司的订单预测为研究对象,探讨该公司E、P两厂订单预测问题,为A公司解决企业实际问题并持续提高生产能力及运营效率。首先 ...
刘思妙
core
Bring the Boys Back Home: The Impact of Foreign Divestments on Local Firms
ABSTRACT Divestments by foreign multinationals are an important phenomenon that is largely neglected in the literature. We use firm‐level panel data from China to estimate the impact of such divestments on the performance of domestic firms in the local economy.
Holger Görg, Haiou Mao, Nigel Driffield
wiley +1 more source
Marketing Strategies of " First-tier Cities Drive Second-tier Cities " ——A Case of A Company’s Medium Voltage Products [PDF]
本文首先运用Porter(波特)的“五力模型”分析了中国中压电气设备行业的产业竞争十分激烈的局面。接着,阐述、分析了A公司创新性提出“一线城市带动二线城市”营销策略的原因及目的,并以Porter(波特)的差异化营销战略为理论依据为阐述、分析这一策略的具体内容及实施计划。A公司在2012年实施了一年的“一线城市带动二线城市”的营销策略之后,带来了订单的显著增长和市场覆盖率的迅速提高。本文对A公司“一线城市带动二线城市”的营销模式的实践结果数据进行定量分析,最后总结了这一策略实施的成功经验和不足之处 ...
林春明
core
Change in cyclone disaster vulnerability and response in coastal Bangladesh
The number of deaths owing to tropical cyclones in Bangladesh has significantly reduced. Category 4 Cyclone Gorky in 1991 and Sidr in 2007 caused 147,000 and 4,500 deaths respectively, whereas Category 1 Cyclone Mora in 2017 resulted in six. Face‐to‐face interviews with 362 residents, participant observation, and focus‐group discussions answer a ...
Edris Alam +4 more
wiley +1 more source

