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Temperature Responses to External Heat Fluxes of the Power Distribution System on Alpha Magnetic Spectrometer

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Journal of Thermal Science 2022年第3期31卷 802-815页

作者： YANG Fei DU Wenjing MEDVEDEVA Tatiana CHENG Lin sun qie Institute of Thermal Science and Technology Shandong UniversityJi’nan250061China School of Energy and Power Engineering Shandong UniversityJi’nan250061China Laboratory for Nuclear Science Massachusetts Institute of TechnologyCambridgeMA02139USA Shandong Institute of Advanced Technology Ji’nan250100China

High-temperature warnings frequently occurred at the Power Distribution System(PDS)of the Alpha Magnetic Spectrometer(AMS).To investigate the fundamental reasons,a theoretical model for the AMS PDS was established under the International Space Station(ISS)normal and special operating *** the model,the study investigated the external heat fluxes and the temperature responses of the *** effects of ISS special operations on the PDS’s thermal environment were also *** reveal that the total external heat flux at the PDS reaches its maximum value when the angleβis around–25°,where high-temperature warning frequently *** the ISS normal operating condition,the temperature response hysteresis at the PDS varies from 116 s to 230 *** the ISS performed special operations,locking the ISS solar arrays had the greatest influence on the PDS’s external heat fluxes,and the average temperature at the PDS fell by 1.7°*** the ISS performed multiple special operations,simultaneously locking the ISS solar arrays and adjusting the ISS flight attitude were the most frequent operations,of which the influences on the PDS temperature were the largest,i.e.,the changes in peak temperature reached up to+2.5°C.

关键词： external heat fluxes temperature responses alpha magnetic spectrometer international space station spatial thermal environment

An efficient recycling strategy to eliminate the residual“impurities”while heal the damaged structure of spent graphite anodes

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Green Energy & Environment 2024年第6期9卷 1027-1034页

作者： Dan Yang Ying Yang Haoran Du Yongsheng Ji Mingyuan Ma Yujun Pan Xiaoqun Qi Quan sun Kaiyuan Shi Long qie Institute of New Energy for Vehicles School of Materials Science and EngineeringTongji UniversityShanghai201804China State Key Laboratory of Material Processing and Die&Mold Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan430074China Shuangdeng Group Co. Ltd.Taizhou225500China School of Materials Science and Engineering Sun Yat-Sen UniversityGuangzhou510275China

The recycling of graphite from spent lithium-ion batteries(LIBs)is overlooked due to its relatively low added value and the lack of efficient recovering *** reuse the spent graphite anodes,we need to eliminate their useless components(mainly the degraded solid electrolyte interphase,SEI)and reconstruct their damaged ***,a facile and efficient strategy is proposed to recycle the spent graphite on the basis of the careful investigation of the composition of the cycled graphite anodes and the rational design of the regeneration *** regenerated graphite,which is revitalized by calcination treatment and acid leaching,delivers superb rate performance and a high specific capacity of 370 mAh g^(-1)(~99% of its theoretical capacity)after 100 cycles at 0.1 C,superior to the commercial graphite *** improved electrochemical performance could be attributed to unchoked Li^(+) transport channels and enhanced charge transfer reaction due to the effective destruction of the degraded SEI and the full recovery of the damaged structure of the spent *** work clarifies that the electrochemical performance of the regenerated graphite could be deteriorated by even a trace amount of the residual“impurity”and provides a facile method for the efficient regeneration of graphite anodes.

关键词： Graphite Anode Regeneration Solid electrolyte interphase Spent lithium-ion battery

Middle Devonian ostracods from Jiwozhai patch reef(Dushan, Guizhou Province, South China):Biostratigraphic and palaeoecological implication

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Journal of Palaeogeography 2024年第3期13卷 581-593页

作者： Jun-Jun Song Jia-Yuan Huang Wen Guo Kun Liang Yu-Cong sun Zhi-Hong Wang Wen-Kun qie State Key Laboratory of Palaeobiology and Stratigraphy Nanjing Institute of Geology and PalaeontologyChinese Academy of Sciences Hubei Key Laboratory of Paleontology and Geological Environment Evolution Wuhan Center of China Geological Survey University of Chinese Academy of Sciences

The Middle Devonian ostracods from the Jiwozhai patch reef in Dushan, Guizhou Province, South China were described for the first time in this study. Twenty-nine species belonging to 20 genera were identified and figured, including a new species named Wangshangkia jiwozhaiensis sp. nov. The ostracod fauna in the Jiwozhai patch reef represents a Givetian age. The ostracod assemblage belongs to the smooth-podocopid association, which is also ecologically equivalent to the Eifelian Mega-Assemblage Ⅲ. This association is indicative of shallow open-marine environments. The Jiwozhai patch reef fauna is primarily comprised of suspension feeders, including filter-feeding ostracods, corals, brachiopods and bryozoans. Ostracods from the Jiwozhai patch reef were compared to the ostracod faunas from Laurentia-Baltica at generic level, which reveals limited faunal exchanges between South China and Laurentia-Baltica during the Middle Devonian.

关键词： Ostracods Givetian Jiwozhai patch reef Dushan Palaeoecology

Devonian integrative stratigraphy,biotas,and paleogeographical evolution of the Qinghai-Tibetan Plateau and its surrounding areas

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Science China Earth Sciences 2024年第4期67卷 1036-1070页

作者： Wenkun qie Kun LIANG Wen GUO Biao GAO Junjun SONG Bo CHEN Pu HUANG Li QIAO Honghe XU Jitao CHEN Yucong sun Yichun ZHANG State Key Laboratory of Palaeobiology and Stratigraphy Nanjing Institute of Geology and PalaeontologyChinese Academy of SciencesNanjing 210008China University of Chinese Academy of Sciences Nanjing 211135China

The Devonian System in the Qinghai-Tibetan Plateau and its surrounding areas is widely distributed,diverse in lithotypes and rich in *** records the crucial processes of continuous subduction and reduction of the Paleo-Asian Ocean in the northern hemisphere and the transformation of the Proto-Tethys Ocean into the Paleo-Tethys Ocean in the southern ***,it is of great significance for explaining the global paleogeographic evolution,tectonic activities and biodiversity changes during this critical *** blocks on both sides of the southern Tienshan suture zone and the Longmu Co-ShuanghuChangning-Menglian suture zone belong to different sedimentary systems and paleobiogeographic realms and regions,showing important tectonic paleogeographic partitioning *** two suture zones represent the main branches of the PaleoAsian Ocean and the Paleo-Tethys Ocean,respectively,and on this basis the Devonian System can be subdivided into three types:the Tienshan type,the Tethys type and the Gondwana *** on recent research progress on the Devonian stratigraphy and paleontology in combining provenance analysis and biotic characteristics in the Qinghai-Tibetan Plateau and surrounding areas,this paper aims to establish the latest integrative stratigraphic framework and conduct paleogeographic reconstruction,providing foundation for exploring the geological evolution and dynamic mechanisms of various terranes and blocks in the northern margin of *** results indicate that the North Qiangtang,South Qiangtang,Simao,Baoshan and Tengchong terranes,as well as the Himalaya Tethys Zone and the South China Block have affinities with the Indian Block,while the Lhasa Terrane has affinities with the Australian Block,and may be located between the South China and Australian *** the Emsian(Early Devonian),the South China Block separated from the northern margin of Gondwana,a process that was accompanied by the opening of the Jinshajiang-Ailaosh

关键词： Devonian Paleo-Tethys Ocean Integrative stratigraphy Biotas Provenance Analysis Paleogeography

基于SHAP-LightGBM的电动集装箱正面吊运起重机能耗分析和异常识别

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工程设计学报 2024年第1期31卷 81-90页

作者：郄永军任杰孙帅周东才张凡三一重工股份有限公司北京102206 三一海洋重工有限公司广东珠海519050

集装箱正面吊运起重机(以下简称正面吊)在港口的实际作业中发挥着重要作用。随着社会对能源和环境问题的日益关注,正面吊的电动化趋势愈加显著,市场上电动正面吊的数量逐年增加。电耗性能直接影响电动正面吊的续航能力、作业效率和作业... 详细信息

集装箱正面吊运起重机(以下简称正面吊)在港口的实际作业中发挥着重要作用。随着社会对能源和环境问题的日益关注,正面吊的电动化趋势愈加显著,市场上电动正面吊的数量逐年增加。电耗性能直接影响电动正面吊的续航能力、作业效率和作业成本,是电动正面吊的重要性能之一。驾驶行为、作业工况、设备故障等因素均会对电动正面吊的能耗产生影响。为此,通过收集电动正面吊客户侧的实际运行数据,基于LightGBM(light gradient boosting machine,轻量级梯度提升机)模型,在微观和宏观两个层面分别对电动正面吊的行驶和作业过程进行能耗建模,并运用SHAP(Shapley additive explanations,沙普利加和解释)理论量化分析不同作业工况、作业行为对电动正面吊能耗的影响,同时识别设备故障所引起的能耗异常。结果表明,基于SHAP-LightGBM的能耗模型能够准确预测和分析电动正面吊的行驶和作业能耗,可为电动正面吊的设计、能耗策略优化提供有效的信息输入,同时可建立电动正面吊实际运行过程的理论能耗基准,有效指导驾驶行为和识别故障造成的能耗异常等。

关键词：集装箱正面吊运起重机能耗模型异常识别 LightGBM模型能耗优化

高校间医工交叉跨学科组织的组建机制——以哈佛-MIT健康科学与技术计划为例

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高等工程教育研究 2024年第4期 172-177页

作者：孙晶宋亚峰郄海霞王世斌天津大学发展规划处天津大学教育学院

健康中国战略引领下,医工交叉已成为高校学科布局重要方向。除自建医学院外,高校间合作是更直接也更高效的途径。哈佛-MIT健康科学与技术计划(HST)组织视角剖析发现,富有成效的组建机制,形成了卓越导向且上下同心的组织目标;多方协同高... 详细信息

健康中国战略引领下,医工交叉已成为高校学科布局重要方向。除自建医学院外,高校间合作是更直接也更高效的途径。哈佛-MIT健康科学与技术计划(HST)组织视角剖析发现,富有成效的组建机制,形成了卓越导向且上下同心的组织目标;多方协同高效合理的决策机制,整合了多样化且结构合理的组织资源;育人机制、教师激励机制、跨学科研究机制和外部保障机制,发挥了各类资源效能;开放包容、平等民主文化将全体成员凝聚一起,推动了HST高质量发展。可借鉴HST经验,探索建立符合校情的高校间跨学科组织,培养能担重任的医工交叉复合型人才。

关键词：高校间医工交叉跨学科组织组建机制

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论跨国公司的转移价格

特区经济 2006年第3期 312-313页

作者：孙锲许博中国海洋大学管理学院山东青岛266071

跨国公司在我国使用转移价格主要基于非税务动因,其转移价格策略对我国企业、产业以及财政收入等方面都产生了不良影响。针对这些问题,我国需要在积极引进外资的同时,不断完善相关法律规定,加强国际税收合作,强化对引资活动的监管,提高... 详细信息

跨国公司在我国使用转移价格主要基于非税务动因,其转移价格策略对我国企业、产业以及财政收入等方面都产生了不良影响。针对这些问题,我国需要在积极引进外资的同时,不断完善相关法律规定,加强国际税收合作,强化对引资活动的监管,提高外资质量。

关键词：转移价格动因负面影响

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相变蓄冷材料的研究进展

工程热物理学报 2018年第3期39卷 567-573页

作者：杨天润孙锲 WENNERSTEN Ronald 程林山东大学热科学与工程研究中心济南250061

变蓄冷材料具有较高的储能密度,在能源高效利用和节能等方面有着广阔的应用前景。本文对固液相变点在20℃以下的相变蓄冷材料进行了分类,并详细地总结了目前研究较多的和已经商用的各类相变材料及其热物性参数,比较了不同种类相变材料... 详细信息

变蓄冷材料具有较高的储能密度,在能源高效利用和节能等方面有着广阔的应用前景。本文对固液相变点在20℃以下的相变蓄冷材料进行了分类,并详细地总结了目前研究较多的和已经商用的各类相变材料及其热物性参数,比较了不同种类相变材料的热物性和化学性质。最后,本文对相变蓄冷材料的研究和应用前景进行了展望。

关键词：蓄冷相变材料热物性潜热

计及故障信息和需求不确定的应急物资灾前预布局与灾后调度

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电力系统自动化 2024年第13期48卷 120-129页

作者：郄聃万海洋张桐菲孙晓光王志强刘文霞华北电力大学电气与电子工程学院北京市102206 国网吉林省电力有限公司长春供电公司吉林省长春市130021

为提高灾前、灾后电力抢修物资与抢修人员调度的协调性和鲁棒性,提出一种计及故障信息和物资需求双重不确定的灾前电力抢修物资预布局与灾后协同调度策略。首先,灾前针对灾情预测信息和电力抢修物资的双重不确定性,考虑决策者对风险的... 详细信息

为提高灾前、灾后电力抢修物资与抢修人员调度的协调性和鲁棒性,提出一种计及故障信息和物资需求双重不确定的灾前电力抢修物资预布局与灾后协同调度策略。首先,灾前针对灾情预测信息和电力抢修物资的双重不确定性,考虑决策者对风险的偏好程度,建立基于均值-条件风险价值(CVaR)的双层物资调配分布鲁棒优化(DRO)模型,上层以电力抢修物资配置成本最小为目标对物资中转点的选择及预置电力抢修物资的数量进行优化,下层基于均值-CVaR工具搜索最恶劣故障场景分布,并鲁棒优化(RO)故障场景下中转点到故障点的电力抢修物资分配策略,以求得故障损失成本;其次,灾后考虑物资和抢修人员调度的时序耦合约束,建立以停电损失最小为目标,中转点分配至各故障点物资的种类及数量和抢修人员的调度计划为决策变量的混合整数线性规划模型;最后,通过118节点实际配电网系统进行仿真分析,验证了所提方法的有效性。

关键词：配电网故障抢修电力抢修物资分布鲁棒优化(DRO) 均值-条件风险价值(CVaR)