Results 71 to 80 of about 7,761 (168)
Building a culture of connection in early childhood education: The Hand in Hand Foundations Course
Infant Mental Health Journal: Infancy and Early Childhood, Volume 46, Issue 6, Page 675-695, November 2025.Abstract Healthy early childhood development unfolds in the context of relationships with important caregivers, including early educators. Grounded in the evidence on early relational health, the 8‐week Hand in Hand Foundations Course for Early Childhood Educators teaches a novel connection‐based approach to understanding and responding to young ...
Angela Sillars +6 more
wiley +1 more source
Overview of Active Distribution Network Planning With High Proportion of New Energy Access [PDF]
The new energy is connected to the distribution network in the form of distributed generation, which brings uncontrollability, randomness and volatility to the system. With the help of modern power electronics, information and communication and automatic
GAI Xueyang +4 more
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Ultrasound in Obstetrics &Gynecology, Volume 66, Issue 5, Page 582-588, November 2025.ABSTRACT Objective The corpus callosum (CC) is an interhemispheric structure that facilitates communication between the two cerebral hemispheres. Anomalies of the CC are frequent and associated with a wide spectrum of altered neurodevelopmental outcomes.
R. Corroenne +55 more
wiley +1 more source
Review of Application on Optimization Strategies for New-Type Power System Based on Reinforcement Learning [PDF]
ObjectivesAs power systems evolve toward higher levels of intelligence and automation, reinforcement learning (RL), a key technology in artificial intelligence, shows great potential in the intelligent development of the power sector.
WANG Kai, YAN Zhengyi, ZHAO Kang
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Gaoya dianqi, 2017 柔性直流输电对直流互感器的延时时间及阶跃响应上升时间均有较高要求,针对即将建设的张北柔性直流输电工程的应用需求,研制了一种柔性直流输电用±500 kV直流全光纤电流互感器。直流全光纤电流互感器采用Faraday磁光效应原理,采用光纤作为传感介质。文中介绍了直流全光纤电流互感器的原理及构成,对全光纤电流互感器的线性双折射抑制技术、玻片温度自补偿技术及抗振技术等关键技术进行了深入分析,并给出了样机的主要性能测试情况。测试表明,文中研制的柔性直流输电用直流全光纤电流互感器测量精度为0.2级,延时时间25μs ...
罗苏南 +4 more
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Guangtongxin yanjiu, 2003 文章从多模光纤的应用需求出发,从多方面探讨了影响多模光纤衰减的因素和降低多模光纤衰减的思路,得出了许多有益的结论。
成煜, 李诗愈, 陈伟, 陆大方
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现货市场下考虑等效循环寿命和温控负荷的综合能源需求响应运行策略
Gaoya dianqi随着电网的新能源渗透比例不断上升，电源侧的电量平衡能力愈发不足。在极端气候等负面因素的影响下，容易发生源荷两侧电量不平衡的现象，其造成的电量缺口严重影响系统的安全稳定运行。综合能源系统内能源耦合程度高、互补性强、调节裕度大，能为电网提供优质需求响应服务，从而有效缓解系统电量平衡问题。针对综合能源系统内各类可调性资源的性质，提出一种现货市场下考虑等效循环寿命和温控负荷的综合能源需求响应运行模型，并重点分析了现货市场出清收益、等效循环寿命、温控负荷、阶梯碳交易对运行策略的影响。通过算例结果证明 ...
万靖 +4 more
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Research on Power Planning Based on Robust Optimization Under Carbon Trading Condition [PDF]
ObjectivesIt is important to improve the processing ability of uncertain parameters in power planning.MethodsA robust power planning model based on cardinality constrained uncertainty set under carbon trading condition was proposed.
SUN Dunhu, YE Jianqiang
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Gaoya dianqi, 2019 不断增加的城市用电负荷和经济环保的电力发展需求决定了大中型城市中电缆隧道的广泛应用,而邻近磁热效应是影响隧道中集群敷设的电缆线路载流量的重要因素。为了获得隧道内集群敷设对电缆线路允许载流量影响的定量规律,文中主要以110、220 kV高压电缆为研究对象,在水平排列和品字形排列两种典型敷设方式下,探讨了隧道内空气温度、电缆相间距、回路间距和回路数量对载流量的影响。结果表明,通风效果对隧道内温度影响大,对电缆允许载流量的作用最为显著;相比于水平排列,三相电缆品字形排列时受其他各种因素的影响小,应优先选用 ...
刘英, 肖阳, 刘松华
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Dianci bileiqi, 2022 参考电压波形是金属氧化物避雷器(MOA)在线监测中的关键参数。针对从电压互感器或利用现有电场探头获取参考电压存在的绝缘和误差等问题，根据MOA在线监测的实际需求研制出一种新型电场探头。新型电场探头采用差分输入结构，去除了接地端。同时，利用面积相同的差分电极对共模干扰的抑制能力，可实现对一字排列安装的三相MOA母线电压波形的获取。对新型电场探头的响应能力和抗干扰能力进行了实验，实验结果表明，本研究设计的电场探头对MOA母线电压基波和各次谐波分量具有良好的响应，电压相位和谐波含量误差较小 ...
侯峰 +6 more
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