Results 1 to 10 of about 1,350 (181)
Application status of steel slag asphalt mixture [PDF]
总结了钢渣的物理性质、化学成分及矿物相组成; 分析了影响钢渣体积安定性的因素及其改善措施; 探讨了钢渣沥青混合料的配合比设计方法; 分析了钢渣沥青混合料的路用性能(高温稳定性、低温抗裂性、水稳定性、抗疲劳性、体积安定性、抗滑性)及其功能特性(导电性与微波加热); 研究了钢渣沥青混合料的生态、社会及经济效益; 介绍了国内外的工程应用。研究结果表明:钢渣可用于沥青混合料,且应为陈化半年以上的转炉钢渣或电炉钢渣; 钢渣的物理力学性能优良,而化学成分及矿物相组成受炼钢工艺影响有所区别 ...
Gao J. +9 more
core +1 more source
Field boundary features have an important role in stabilising pollinator populations and pollination service in rotational systems, although maintenance of larger semi‐natural habitat patches may be more effective for stabilising less mobile solitary bee populations.
Emma Gardner +16 more
wiley +1 more source
Comprehensive Evaluation Model of Energy Storage Power Station With Full Life Cycle [PDF]
The research on the evaluation model of the energy storage power station focuses on the cost model and economic benefit model of the energy storage power station.
CAI Wei +7 more
core +1 more source
Economic Analysis of Battery Energy Storage Participating in AGC Ancillary Service of Coal-Fired Generating Unit [PDF]
[Introduction] In the context of "Dual Carbon", the demands for ancillary services of the electric power system are increasing. However, traditional thermal power units have many problems in AGC control.
Ying ZHONG
core +1 more source
Design and application of a cable fixings for medical equipment (一种医疗设备用线路固定结构的设计与应用)
The poor management of wires may shorten the life cycle of the medical equipment and reduced work efficiency in medical workers. This paper introduced the structure and application of a cable fixings for medical equipment, which has been designed to ...
ZHANG Li (张莉) +4 more
doaj +1 more source
Research and development of integrated life cycle risk management and control platform for large petroleum storage depot [PDF]
In order to ensure energy security and realize the "dual carbon" strategy, it is urgent to strengthen the risk management and control of large oil and gas storage facilities while vigorously improving the storage capacity of oil and gas.
Xiping ZHU
core +1 more source
为使高压断路器在运行期间达到最优经济效益,通过引入系统动力学建立高压断路器全寿命周期成本模型评估其经济寿命。由于故障成本随故障率波动而动态变化,为了准确描述实际检修对故障率的影响,通过引入“役龄回退因子”修正实际维修后的故障率函数。同时,基于高压断路器LCC模型求得其年均全寿命成本,进而确定高压断路器可获得最大经济效益的退役年限。通过算例仿真结果可知,基于系统动力学的高压断路器LCC模型能直观地反映高压断路器整个运行年限内全寿命周期成本及其构成因素变化过程,对高压断路器实际运行维护及退役具有参考借鉴意义。
吐松江·卡日 +5 more
doaj
随着我国经济的持续发展,电力工业取得了很大的进步,但同时,对电力的需求也急剧上升。以往的供电能力已不能适应当前社会对电力的需求,电力工程建设规模日益扩大。电力工业的建设是一个资本积累的过程。在具体建设过程中,电力企业要做好工程造价管理和控制,提高资金利用率,提高各项建设项目的经济效益,促进我国经济向更加稳定的方向发展。
金苗 陈
semanticscholar +1 more source
对装配式钢结构建筑和混凝土建筑进行了全寿命周期经济性分析。以济阳县第二实验小学教学楼项目工程为例,选取钢框架和混凝土框架两种结构体系搭配不同的外墙、楼板和内墙板等围护体系共计十种比较方案进行经济性研究,运用全寿命周期成本评价体系分别计算每种方案的初始成本、建设成本、维护成本、拆除成本和残值,发现装配式钢框架结构体系的全寿命周期成本均低于其他方案,装配式钢结构建筑具有更好的经济性与推广应用价值。
侯和涛 +5 more
doaj
±1100 kV特高压直流工程换流变最优短路阻抗 [PDF]
换流变压器是直流输电系统中最重要的设备之一,短路阻抗是确定整个直流系统成套设计方案的最重要输入条件,对直流主回路参数、短路电流、绝缘配合、无功配置、设备制造、大件运输、技术经济性等具有决定性作用。定量分析了±1100 kV特高压直流工程中以上因素对阻抗选择的影响,并提出了全寿命周期成本分析方法。基于此分析,以±1100 kV昌吉—古泉特高压直流工程为例,提出了该工程的最优阻抗推荐值,并应用于实际工程。
郭贤珊, 付颖
doaj +1 more source

