Results 21 to 30 of about 5,840 (109)
源荷储多类型灵活性资源协调的高比例可再生能源电源规划 [PDF]
全球能源互联网, 2019 未来高比例可再生能源电力系统愿景下，具有波动性和不确定性的风/光等可再生能源作为主要能源供应者，给电力系统带来了巨大的灵活性需求，考虑单一类型灵活性资源提供调节能力的规划模型和以净负荷包络线为基础的电源规划方法将不再适用。引入灵活性指标量化评估源荷储多类型灵活性资源的调节潜力并作为优化决策变量纳入到规划模型中，从而建立以全周期投资成本最小化为目标的高比例可再生能源电源规划模型。通过电源投资决策、生产模拟和灵活性评估3个流程模块，实现单位投资改善灵活性指标最优的电源规划方案求解。最后 ...
徐唐海, 鲁宗相, 乔颖, 安军
doaj +1 more source
Clip Voice: Misogyny and the Renegotiation of a Gendered Vocal Style in Chinese Digital Discourse
Journal of Sociolinguistics, Volume 29, Issue 5, Page 348-359, November 2025.ABSTRACT The participatory culture of social media allows women's voices to be heard but also parodied and policed. On Chinese social media platforms, where performers rapidly adopt and transform vocal trends for engagement, discourse on gendered vocal styles has proliferated.
Zichuan Yu, Rebecca Lurie Starr
wiley +1 more source
Gaoya dianqi, 2023 全链路仿真常用于验证柔性直流换流阀阀控系统全部板卡接入时的功能和性能。文中基于全链路仿真实验结构分析，提出了一种全链路仿真实验的优化方法，在满足阀控动态性能实验要求的基础上，降低了仿真系统的复杂度。分析全链路仿真系统结构，提出仿真实验结构优化方案；对比实际换流阀及全链路仿真试验延时，提出仿真实验延时优化方法；最后，搭建工程实验系统进行验证。实验结果显示，该优化方法具有实验回路复杂度低和链路延时小的优点，可满足阀控功能性测试和动态性能测试的需要。
蒋妮娜 +4 more
doaj
Ultrasound in Obstetrics &Gynecology, Volume 65, Issue 5, Page 624-632, May 2025.ABSTRACT Objectives Placental insufficiency contributes to many obstetric pathologies, but there is no bedside clinical tool to evaluate placental perfusion. We have developed a method to acquire multiple three‐dimensional (3D) power Doppler (PD) ultrasound (US) volumes of placental vasculature, with infrared camera tracking of the precise spatial ...
A. Xue +5 more
wiley +1 more source
Journal of Linguistic Anthropology, Volume 34, Issue 3, Page 441-469, December 2024.Abstract This paper develops the concept of “indexical deprivation” from the experiences of English learning in relation to cochlear implant use among Taiwanese deaf adults. Based on the framework of language ideological assemblage, this paper traces how institutional discourses and practices at different levels contribute to the indexicalization ...
Tsung‐Lun Alan Wan
wiley +1 more source
Methods in Ecology and Evolution, Volume 15, Issue 11, Page 1926-1939, November 2024.Abstract Simulation studies are essential tools to assess statistical methods. Functioning as controlled experiments, simulations generate data from known underlying processes. However, unclear or incomplete reporting of simulation studies can impact their interpretability and reproducibility, potentially leading to the misuse of statistical methods ...
Coralie Williams +6 more
wiley +1 more source
Gaoya dianqi, 2015 基于RT-LAB实时仿真平台,研究了实时仿真技术在基于模块化多电平换流器（MMC）的柔性直流输电系统（HVDC）中的应用。建立了基于MMC的柔性直流输电系统的实时仿真模型,并将RT-LAB的实时仿真结果与PSCAD/EMTDC的离线仿真结果进行了对比验证。两种仿真结果在暂态和稳态下都比较一致,这说明通过RT-LAB可以得到MMC高压直流输电系统的正确仿真结果。还对两种仿真方法的仿真时间进行了对比,说明通过RT-LAB的实时仿真可以大幅度提高对MMC换流器的仿真效率。研究结果为采用RT ...
汪谦 +4 more
doaj
Guangtongxin yanjiu, 2006 偏振模色散仿真器是研究偏振模色散的重要工具。文章提出了一种新型的偏振模色散仿真器,并对该仿真器作了理论分析和仿真。理论分析和仿真结果表明:这种新型的偏振模色散仿真器能够产生可调的差分群延时和实现偏振态的各态遍历。
李新林, 李正斌, 吴德明
doaj
Gaoya dianqi, 2013 叙述了运动仿真技术在高压开关先进设计方法体系中的重要作用,介绍了UGMotion环境下运动仿真的构建方法,特别介绍了3D碰撞和柔性仿真技术在开关运动仿真中的重要作用。最后,以4个典型案例——触头碰撞仿真、弹簧操动机构合后即分、弹簧操动机构棘轮冲击棘爪以及某断路器绝缘拉杆断裂为例,对UGMotion运动仿真技术的可用性进行了验证,结果表明运动仿真技术可以为高压开关运动学与动力学的定量分析提供支持。
朱琦琦
doaj
Guangtongxin yanjiu, 2006 介绍了蒙特-卡洛仿真原理,分析了改进型的蒙特-卡洛仿真即重要抽样（IS）的原理及其在通信中的应用,特别是在高速光纤通信的偏振模色散（PMD）仿真中的应用价值。实验证明,采用重要抽样的仿真方法可以得到大差分群时延（DGD）值的小概率事件,并且系统配置比用蒙特-卡洛的仿真方法简单得多。
杨祎, 阴亚芳, 刘继红
doaj