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城市充电服务网多维评估指标体系与方法 [PDF]

open access: yes全球能源互联网, 2022
城市充电服务网的规划布局与运营模式决定了电动汽车的发展前景,在未来电动汽车渗透率急剧上升的情况下保证充电服务网可持续发展裕度,合理评估充电服务网以挖掘其运行不良区域与薄弱环节,可为后续充电服务网的持续优质运行提供改进依据。为此,提出考虑电动汽车用户、交通网、配电网等多方主体的充电服务网动态综合评价指标体系与评估方法。首先,分析城市充电服务网的多重属性,结合用户、交通网、配电网建立多维评价指标体系;接下来,采用基于组合赋权的灰色关联度分析法量化分析充电服务网对各主体指标的影响;最后 ...
王敏   +4 more
doaj   +1 more source

考虑用电形态相似度的多用户共享储能投资决策 [PDF]

open access: yes全球能源互联网, 2021
在大规模可再生能源渗透的背景下,利用储能装置促进可再生能源消纳并降低用户成本逐渐成为发展趋势。以电能用户为研究对象,深入挖掘并构建用户侧储能综合效益模型;建立多用户共享储能的容量配置投资决策模型,基于用电形态相似度,提出了以高、低2种相似度为标准的共享储能模式下用户筛选方式,以提高共享储能的经济效益。算例分析对比了高、低2种用电形态相似度下用户集体共享储能的经济性,给出了共享储能容量配置的投资决策结果,以高用电形态相似度作为用户筛选标准可以获得更大的共享储能经济效益,并且经济效益与用户数量呈现正相关。
刘继春   +4 more
doaj   +1 more source

考虑室内体感舒适度的城市楼宇型能量枢纽优化配置与定容应用分析 [PDF]

open access: yes全球能源互联网, 2020
楼宇用能是城市能耗的重要组成部分。基于楼宇室内人体在各个季节的舒适体感温度,建立建筑和能量枢纽优化模型,据此计算维持楼宇最佳体感温度所需的冷热负荷,并基于外部能源要素价格、内部功率平衡等约束条件,面向用能托管的商业模式,提出楼宇冷热电气能量转换和存储设备的优化配置方法,以实现楼宇能量枢纽综合经济成本最优,并通过实际算例进行了验证。结果表明,充分发挥各类能量转换设备的互补特性,对于降低能量枢纽的综合成本起着关键作用。燃气内燃机满足电、热基荷,电网购电和热泵予以补充的方式具有较高的经济性。气价 ...
范成围   +7 more
doaj   +1 more source

高水电占比西南电力调峰辅助服务市场构建 [PDF]

open access: yes全球能源互联网, 2021
结合西南电网高水电占比特征,基于“增量收益、不扣优先、省内优先”的理念,构建了中国首个非强制分摊市场化、具有西南特色的电力调峰辅助服务市场。首先,论证了西南电力调峰辅助服务市场建设的必要性;其次,以促进水电减弃增发和火电调节灵活性为目标,给出了西南电力调峰辅助服务市场价格、省内与省间市场协调、火电优先计划保障等核心机制解决方案;然后,设计了交易品种、出清流程、市场模式、业务流程等核心要素解决方案;最后,测算表明年度交易规模和经济效益满足市场培育和发展的需要 ...
文旭   +6 more
doaj   +1 more source

Effect of salmon calcitonin on bone mineral density of patients with osteoporotic vertebral compression fractures (鲑降钙素对骨质疏松椎体压缩性骨折患者骨密度的影响)

open access: yes中西医结合护理, 2023
Objective To investigate the effect of salmon calcitonin on bone mineral density (BMD)of patients with osteoporotic vertebral compression fractures (OVCFs).
CAO Min (曹敏)   +6 more
doaj   +1 more source

Study on Degradation of Rice Pesticide Residues by an Amino Acid Organic Fertilizer(一种氨基酸有机肥降解稻米农药残留的研究) [PDF]

open access: yesShipin kexue jishu xuebao, 2017
The aim of this study was to explore an approach to effectively degrade rice pesticide residue and integrate technologies concerning safety rice production.
JIANG Xinlu(姜心禄)   +5 more
doaj   +1 more source

Effect of auricular acupoint buried beans combined with Nazi method of midnight-noon ebb-flow on relieving sleep disorders of nightshift nurses (耳穴埋豆联合子午流注纳子法对夜班护士睡眠障碍改善的效果评价)

open access: yes中西医结合护理, 2023
Objective To evaluate the effect of auricular acupoint buried beans combined with Nazi method of midnight-noon ebb-flow on relieving sleep disorders in night shift nurses.
LIAO Tao (廖涛)   +5 more
doaj   +1 more source

Research on Identification of Pseudomonas aeruginosa and Serratia marcescens in Strawberry by MALDI-TOF MS(MALDI-TOF MS对草莓中铜绿假单胞菌和黏质沙雷氏菌的检测) [PDF]

open access: yesShipin kexue jishu xuebao, 2018
To evaluate the value of MALDI-TOF MS for the risk monitoring of microorganism in strawberry and determine the hazards identification microorganism and their characteristics. Pseudomonas aeruginosa and Serratia marcescens were isolated from 50 strawberry
WEI Chao(魏超)   +3 more
doaj   +1 more source

Application of phased game-based education model in children with upper limb fractures (分阶段游戏式教育模式在上肢骨折儿童中的应用研究)

open access: yes中西医结合护理, 2023
Objective To construct and evaluate a health education program suitable for the physical and mental characteristics and disease characteristics of children with fracture. Methods A phased health education program was designed according to the theory of
WEI Sen (韦森)   +4 more
doaj   +1 more source

电力与交通系统协同运行控制的研究综述及展望 [PDF]

open access: yes全球能源互联网, 2020
随着交通电气化与再电气化程度的不断提高,电力系统与交通系统逐步呈现出深度融合的形式。提出了电力-交通协同运行控制框架,从电力-交通交互影响、电气化交通负荷建模、电力-交通协同运行控制方法等角度,归纳并分析了电力-交通协同运行控制的研究现状。最后,阐述了电力系统与交通系统协同发展的关键技术。电力-交通协同优化运行可以提升电网运行效益、缓解交通出行的供需失衡、提升用户体验,是能源系统实现低碳、清洁、高效、安全的重要技术手段。
何正友   +4 more
doaj   +1 more source

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