Results 21 to 30 of about 4,174 (153)
Heating Control Strategy of VRF with Digital Scroll Compressor [PDF]
, 2011 A 10HP variable refrigerant flowrate air conditioning system(VRF AC) with digital scroll compressor was developed.Based on the unstable running characteristics of the VRF AC,the new control strategy including the control model of compressor output ratio ...
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Data-driven Health Status Prediction of the Hydraulic Turbine Governing System [PDF]
, 2017 水轮机调速系统是水轮发电机组的关键控制系统。运用故障树与专家系统相结合的方法对调速系统可能发生的故障进行诊断,并基于历史数据,挖掘与故障相关的可能因素,对专家系统无法解决的故障进行分析,构建了基于数据驱动的水轮机调速系统健康状态预测系统。The hydraulic turbine governing system is the key control system of the hydro-turbine generator unit.
周绮凤 +6 more
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Beamforming and resource optimization in UAV integrated sensing and communication network with edge computing [PDF]
, 2023 To address the dependence of traditional integrated sensing and communication network mode on ground infrastructure, the unmanned aerial vehicle (UAV) with edge computing server and radar transceiver was proposed to solve the problems of high-power ...
Bin LI, Sicong PENG, Zesong FEI
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Effect of angle of slit on shedding vortex of slotted circular cylinder [PDF]
, 2017 开缝圆柱绕流作为钝体绕流研究的分支,具备很强的应用前景,但是对其复杂的流动现象的物理本质的理解仍不完善。本文采用流动显示技术和粒子成像测速技术(; PIV),探究缝隙对开缝圆柱流场结构的影响,在数据处理方面采用本征正交分解(POD)方法对开缝圆柱流场信息进行了重建。实验研究表明:; 在一定雷诺数范围内,开缝圆柱缝隙的存在从根本上改变了圆柱绕流近区尾流的结构;; 开缝圆柱脱落涡的脱落频率对开缝圆柱缝隙倾斜角具有一定的敏感性,随着缝隙倾斜角的增大其斯特劳哈尔数逐渐变大,对比发现开缝圆柱狭缝比(缝隙/直径)为;
刘志荣 +4 more
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PPO Based Task Offloading Scheme in Aerial Reconfigurable Intelligent Surface-assisted Edge Computing [PDF]
, 2022 In order to compensate the performance loss caused by obstacle blocking in mobile edge computing (MEC) system in 6G-enabled “intelligent Internet of Things”,this paper proposes a partial task offloading scheme supported by aerial reconfigurable ...
XIE Wan-cheng, LI Bin, DAI Yue-yue
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Developmental Medicine &Child Neurology, Volume 61, Issue 3, Page E1-E35, March 2019., 2019 目的 本国际临床指南由欧洲残疾儿童学会（the European Academy of Childhood Disability，EACD）牵头制定，旨在解决发育性协调障碍（developmental coordination disorder，DCD）的定义、诊断、评估、干预以及与社会心理方面的临床应用关键问题。 方法 本指南针对五个领域的关键问题，通过文献综述和专家团队的正式讨论达成共识。为保证指南的循证基础，以“机制”、“评估”和“干预”为检索词, 对2012年更新以来提出的最新建议以及新增的“社会心理问题”和“青少年/成人”为检索词进行检索。根据牛津大学循证医学中心证据等级 (证据水平 [level of evidence, LOE]1–4) 将结果进行分类，最终转化为指南建议。并由国际 ...
Jing Hua +6 more
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Energy Storage Configuration Considering the System Wind Power Reserve Capacity Under High Wind Power Permeability [PDF]
The high proportion penetration of the wind power weakens the inertia and frequency regulation capacity of the power system. The energy storage system (ESS) is widely used in the inertia support and frequency regulation of the power grid with the ...
LIU Hongbo +4 more
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2-D honeycomb MI wave communication system [PDF]
, 2014 To realize the high reliable communication and the wireless power transmission in the wireless underground sensor network,a new type of 2D honeycomb magneto-inductivenetwork was put forward at VLF band.The system model was established,and bandwidth,group
Feng LIU +3 more
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A Frequency Regulation Method of Energy Storage System Based on Adaptive Adjustment of Virtual Synchronous Generator Control Parameters [PDF]
ObjectivesThe large-scale penetration of wind power has reduced the frequency regulation capability of the power system to a certain extent.As a relatively mature and effective technical means, the energy storage system is widely used in power grid ...
LI Bo +4 more
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, 2023 能源革命和数字革命方兴未艾，正共同推动中国能源电力系统向新型电力系统转型升级。人工智能有助于新型电力系统实现精准建模、高效分析及智能决策控制，是新型电力系统构建的关键支撑技术。通过对人工智能在电力系统源、网、荷、储等关键环节的预测、建模、分析、优化控制等核心应用的现状进行综述，对元学习、无监督预训练、可解释性与人机混合增强等人工智能领域的技术发展和其在新型电力系统的应用进行分析展望 ...
周翔, 王新迎, 赵日晓*, 闫冬
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