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光伏组件雷电冲击损伤特性实验研究

安全、健康和环境 2024年第5期24卷 18-22页

作者：刘璇黄彬臧秋莉李祥德许万红毕晓蕾张英杰化学品安全全国重点实验室山东青岛266104 中石化安全工程研究院有限公司山东青岛266104 中国石化销售股份有限公司广东石油分公司广东广州510000

采用高电压及大电流冲击模拟实验,对光伏组件雷击损伤特性进行了分析,获取了雷击对光伏组件的损伤形貌、雷电路径、损伤阈值、电学特性变化等关键损伤特征。研究结果表明:在自然界雷电情况下,多数为光伏边框或支架接闪,20 kA的雷电流即... 详细信息

采用高电压及大电流冲击模拟实验,对光伏组件雷击损伤特性进行了分析,获取了雷击对光伏组件的损伤形貌、雷电路径、损伤阈值、电学特性变化等关键损伤特征。研究结果表明:在自然界雷电情况下,多数为光伏边框或支架接闪,20 kA的雷电流即可引起边框烧蚀;雷击会影响组件的功能和寿命,随着雷电冲击电压的增大,最大输出功率逐渐减小,冲击电压为300 kV时,最大输出功率变化率达到10.02%。基于雷击损伤实验模拟结果,可以为光伏系统的雷击防护提供数据支撑和参考依据。

关键词：光伏发电系统雷击损伤光伏组件雷电流分量烧蚀损伤雷击防护

TP-PROFILE: Monitoring the Thermodynamic Structure of the Troposphere over the Third Pole

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Advances in Atmospheric Sciences 2024年第6期41卷 1264-1277页

作者： Xuelong CHEN Yajing liU Yaoming MA Weiqiang MA xiangde XU Xinghong CHENG Luhan li Xin XU Binbin WANG Land-Atmosphere Interaction and its Climatic Effects Group State Key Laboratory of Tibetan Plateau Earth SystemEnvironment and Resources(TPESER)Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijing 100049China National Observation and Research Station for Qomolongma Special Atmospheric Processes and Environmental Changes Dingri 858200China China-Pakistan Joint Research Center on Earth Sciences Chinese Academy of SciencesIslamabad 45320Pakistan College of Atmospheric Science Lanzhou UniversityLanzhou 730000China Kathmandu Center of Research and Education Chinese Academy of SciencesBeijing 100101China State Key Laboratory of Disastrous Weather China Academy of Meteorological SciencesBeijing 100081China

Ground-based microwave radiometers(MWRs)operating in the K-and V-bands(20–60 GHz)can help us obtain temperature and humidity profiles in the *** from some soundings from local meteorological observatories,the tropospheric atmosphere over the Tibetan Plateau(TP)has never been continuously *** part of the Chinese Second Tibetan Plateau Scientific Expedition and Research Program(STEP),the Tibetan Plateau Atmospheric Profile(TPPROFILE)project aims to construct a comprehensive MWR troposphere observation network to study the synoptic processes and environmental changes on the *** initiative has collected three years of data from the MWR *** paper introduces the data information,the data quality,and data *** applications of the data obtained from these MWRs were also *** comparisons of MWR against the nearest radiosonde observation demonstrate that the TP-PROFILE MWR system is adequate for monitoring the thermal and moisture variability of the troposphere over the *** continuous temperature and moisture profiles derived from the MWR data provide a unique perspective on the evolution of the thermodynamic structure associated with the heating of the *** TP-PROFILE project reveals that the low-temporal resolution instruments are prone to large uncertainties in their vapor estimation in the mountain valleys on the TP.

关键词： microwave radiometer thermodynamic structure vertical profile Tibetan Plateau

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长江经济带生态效率测度及分析

生态经济 2018年第8期34卷 174-179页

作者：曹俊文李湘德江西财经大学统计学院

基于PCA-DEA组合模型,对长江经济带11省市2005—2015年的生态效率进行评价,并测算生态效率收敛性以及对其影响因素进行分析。实证结果显示：长江经济带平均生态效率处于中等水平,下游水平高于整体平均水平;各省市之间追赶效应较弱,生态... 详细信息

基于PCA-DEA组合模型,对长江经济带11省市2005—2015年的生态效率进行评价,并测算生态效率收敛性以及对其影响因素进行分析。实证结果显示：长江经济带平均生态效率处于中等水平,下游水平高于整体平均水平;各省市之间追赶效应较弱,生态效率水平没有趋同,差距可能扩大;经济发展水平、外商投资、环境污染治理投资、技术进步与生态效率是正相关关系,而产业结构、地区就业人口总数与生态效率是负相关关系;促进产业结构的转型有利于生态效率的提升。

关键词： PCA-DEA组合模型长江经济带生态效率收敛性 Tobit模型

感染性休克液体复苏完成时限对病情转归的影响

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临床误诊误治 2024年第3期37卷 83-88页

作者：张丽郑祥德田琳达州市中心医院重症医学科四川达州635000

目的探究感染性休克液体复苏完成时限对患者病情转归的影响。方法选取2020年7月—2023年7月收治的感染性休克156例,根据液体复苏完成时限分为0.05);0.05)。0.05);3组复苏后血pH值、PaO_(2)、PaCO_(2)比较无明显差异(P>0.05)。0.05),<... 详细信息

目的探究感染性休克液体复苏完成时限对患者病情转归的影响。方法选取2020年7月—2023年7月收治的感染性休克156例,根据液体复苏完成时限分为0.05);0.05)。0.05);3组复苏后血pH值、PaO_(2)、PaCO_(2)比较无明显差异(P>0.05)。0.05),<1 h组、1~2 h组、≥2 h组3 h液体复苏量呈依次降低趋势(P<0.05)。≥2 h组去甲肾上腺素剂量高于<1 h组、1~2 h组(P<0.05);<1 h组ICU住院时间、机械通气时间长于1~2 h组、≥2 h组(P<0.05)。1~2 h组、≥2 h组28 d生存率高于<1 h组(P<0.05,P<0.01)。结论感染性休克患者初始液体复苏应在1~2 h内完成,能有效改善器官功能障碍和病情,维持血流动力学水平,加快恢复进程,促进病情良好转归。

关键词：休克,脓毒性液体复苏完成时限中心静脉压血乳酸动脉血氧分压去甲肾上腺素生存率

lncRNA介导ceRNA调控网络作用于缺血性脑卒中的研究进展

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中华神经医学杂志 2021年第11期20卷 1160-1166页

作者：郑继青刘云龙耀斌廖世杰李波香李相德广西医科大学第二附属医院康复医学科南宁530007 广西医科大学第一附属医院骨科南宁530021 广西医科大学第二附属医院放疗科南宁530007

缺血性脑卒中(IS)是由短暂或永久性的局部脑血流减少引起的脑血管病,从细胞和分子层面揭示其的病理生理过程以及探寻新的治疗靶点一直是该病研究的热点。近年来,长链非编码RNA(lncRNA)介导竞争性内源RNA(ceRNA)调控网络已经被证实在IS... 详细信息

缺血性脑卒中(IS)是由短暂或永久性的局部脑血流减少引起的脑血管病,从细胞和分子层面揭示其的病理生理过程以及探寻新的治疗靶点一直是该病研究的热点。近年来,长链非编码RNA(lncRNA)介导竞争性内源RNA(ceRNA)调控网络已经被证实在IS后的病理生理过程中发挥关键作用,能够有效改善IS的诊断、治疗和预后。本文旨在阐述微小RNA(miRNA)、lncRNA在IS中的作用机制及lncRNA作为miRNA的ceRNA对IS的细胞凋亡、细胞活性、血管生成、炎症反应、氧化应激及神经保护等生物学过程的作用,以期拓宽对IS发生发展机制的认知视野,为其诊断和治疗提供新思路。

关键词：缺血性脑卒中长链非编码RNA 竞争性内源RNA 微小RNA

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电解制钠及影响电流效率的因素

宁夏石油化工 2003年第4期22卷 49-50页

作者：李相德李树衡银川市精鹰精细化工有限公司银川750021

本文通过电解金属钠的电流效率,对提高金属钠的产量进行了论述。

关键词：钠制备电解电流效率氯化钠电解质隔膜结构氮气保护

Dynamical Predictability of Leading Interannual Variability Modes of the Asian-Australian Monsoon in Climate Models

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Advances in Atmospheric Sciences 2023年第11期40卷 1998-2012,I0002,I0003页

作者： lin WANG Hong-li REN Fang ZHOU Nick DUNSTONE xiangde XU State Key Laboratory of Severe Weather and Institute of Tibetan Plateau MeteorologyChinese Academy of Meteorological SciencesBeijing 100081China Department of Atmospheric Science School of Environmental StudiesChina University of GeosciencesWuhan 430074China Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters/Key Laboratory of Meteorological Disaster Ministry of Education/Joint International Research Laboratory of Climate and Environment ChangeNanjing University of Information Science and TechnologyNanjing 210044China Met Office Hadley Centre FitzRoy RoadExeterDevonEX13PBUnited Kingdom

The dynamical prediction of the Asian-Australian monsoon(AAM)has been an important and long-standing issue in climate *** this study,the predictability of the first two leading modes of the AAM is studied using retrospective prediction datasets from the seasonal forecasting models in four operational centers *** show that the model predictability of the leading AAM modes is sensitive to how they are defined in different seasonal sequences,especially for the second *** first AAM mode,from various seasonal sequences,coincides with the El Niño phase transition in the eastern-central *** second mode,initialized from boreal summer and autumn,leads El Niño by about one year but can exist during the decay phase of El Niño when initialized from boreal winter and *** findings hint that ENSO,as an early signal,is conducive to better performance of model predictions in capturing the spatiotemporal variations of the leading AAM ***,the persistence barrier of ENSO in spring leads to poor forecasting skills of spatial *** multimodel ensemble(MME)mean shows some advantage in capturing the spatiotemporal variations of the AAM modes but does not provide a significant improvement in predicting its temporal features compared to the best individual models in predicting its temporal *** BCC_CSM1.1M shows promising skill in predicting the two AAM indices associated with two leading AAM *** predictability demonstrated in this study is potentially useful for AAM prediction in operational and climate services.

关键词： Asian-Australian monsoon(AAM) leading interannual variability modes El Niño seasonal forecasting models multimodel ensemble(MME)

Importance of orographic gravity waves over the Tibetan Plateau on the spring rainfall in East Asia

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Science China Earth Sciences 2023年第11期66卷 2594-2602页

作者： Runqiu li Xin XU xiangde XU Theodore G.SHEPHERD Yuan WANG Key Laboratory of Mesoscale Severe Weather/Ministry of Education and School of Atmospheric Sciences Nanjing UniversityNanjing 210023China State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesBeijing 100081China Department of Meteorology University of ReadingEarley GatePO Box 243Reading RG66BBUK

The springtime persistent rainfall(SPR)is the major rainy period before the onset of summer monsoon in East Asia,which profoundly affects the regional and even global hydrological *** the great importance of the mechanical and thermal effects of the Tibetan Plateau(TP)large-scale orography on the formation of SPR,the impact of small-scale orography over the TP remains poorly *** we show that upward-propagating orographic gravity waves(OGWs),which occur as the subtropical westerlies interact with the TP's small-scale orography,contribute importantly to the *** breaking of OGWs induces a large zonal wave drag in the middle troposphere,which drives a meridional circulation across the *** rising branch of the meridional circulation acts to lower the pressure and increase the meridional pressure gradient to the south of the TP by dynamically pumping the lower-tropospheric air *** southwesterly monsoonal flow on the southeastern flank of the TP thus intensifies and transports more water vapor to East Asia,resulting in an enhancement of the *** finding helps more completely understand the impacts of TP's multiscale orography on the SPR and provides a new perspective on the westerly-monsoon synergy in East Asia.

关键词： Tibetan Plateau Orographic gravity waves Monsoon Spring persistent rainfall

包膜氯化胆碱对反刍动物的营养作用及其应用研究进展

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中国畜牧杂志 2024年第1期60卷 87-93页

作者：朱相德侯嘉柘丽吴鹏戚营营李浙烽张倩云王效赵威康德权包膜饲料添加剂省级重点农业企业研究院杭州康德权饲料有限公司浙江杭州311112

胆碱是动物生长发育必不可少的营养素,具有维持细胞膜完整性、参与脂肪代谢、参与乙酰胆碱合成等多种生理功能。饲料中通常是以氯化胆碱的形式添加,但是普通的氯化胆碱具有吸湿性强、易被瘤胃微生物降解、破坏其他营养物质活性等缺陷。... 详细信息

胆碱是动物生长发育必不可少的营养素,具有维持细胞膜完整性、参与脂肪代谢、参与乙酰胆碱合成等多种生理功能。饲料中通常是以氯化胆碱的形式添加,但是普通的氯化胆碱具有吸湿性强、易被瘤胃微生物降解、破坏其他营养物质活性等缺陷。通过包膜处理的氯化胆碱克服了普通氯化胆碱的缺陷,广泛应用于反刍动物生产中。本文就氯化胆碱保护的必要性、氯化胆碱保护方法及包膜氯化胆碱对反刍动物的营养作用进行综述,以期为包膜氯化胆碱在反刍动物生产中的应用提供参考。

关键词：包膜氯化胆碱包膜方法微胶囊反刍动物