检索结果-南通市图书馆

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

核电站人员闸门用O形密封圈研究

机械工程师 2016年第10期 132-133页

作者：徐道平上海核工程研究设计院上海200233

人员闸门是核电站安全壳的重要组成部分之一,能确保安全壳压力边界的密封性。闸门通过双道O形密封圈来实现其密封功能,密封圈的材料性能,尤其是老化性能对其密封性与可靠性起着决定性作用。文中结合试验论证,综合分析了密封圈材料的老... 详细信息

人员闸门是核电站安全壳的重要组成部分之一,能确保安全壳压力边界的密封性。闸门通过双道O形密封圈来实现其密封功能,密封圈的材料性能,尤其是老化性能对其密封性与可靠性起着决定性作用。文中结合试验论证,综合分析了密封圈材料的老化机理和密封性能的可靠性,对多种人员闸门用O形密封圈材料进行了热老化、辐照老化试验,并验证了在LOCA环境下的密封性能,得到了完整试验数据,为核电站密封材料的设计和应用提供了理论及实践依据。

关键词：人员闸门 O形密封圈老化

外周动脉采血在新生儿护理中的应用方法及效果观察

在线全文

学校读者我要写书评

暂无评论

中国继续医学教育 2018年第9期10卷 158-159页

作者：徐道平湖北省襄阳市襄州区人民医院儿科湖北襄阳441001

目的探讨外周动脉采血法在新生儿护理工作中的应用及效果。方法选取2016年4月-2017年4月期间我院收治的142例新生儿作为研究对象,将其按随机数字表法分为治疗组与对照组,每组各71例。其中治疗组新生儿采用外周动脉采血法,对照组新生儿... 详细信息

目的探讨外周动脉采血法在新生儿护理工作中的应用及效果。方法选取2016年4月-2017年4月期间我院收治的142例新生儿作为研究对象,将其按随机数字表法分为治疗组与对照组,每组各71例。其中治疗组新生儿采用外周动脉采血法,对照组新生儿采用传统股静脉采血法,对比两组新生儿临床效果。结果治疗组新生儿一次采血成功率显著高于对照组,P<0.05;且治疗组新生儿采血不良反应发生率显著低于对照组,P<0.05。结论在新生儿的采血中应用外周动脉采血法,一次采血成功率较高,对新生儿造成痛苦较轻,且安全性较高,具有应用价值。

关键词：外周动脉采血股静脉采血新生儿护理

A Study on the Application of the Chinese English Competence Scale in College English Teaching

在线全文

学校读者我要写书评

暂无评论

教育研究前沿（中英文版） 2019年第3期9卷 93-96页

作者： xu daoping Zhao Weihong Tang Dongdong Qingdao Huanghai University QingdaoShandong266427China

The results of the assessment of College Students'English Reading Comprehension Scale based on the Chinese EnglishCompetence Scale show that the assessment of language competence scale can diagnose English teaching and learning in HigherVocational colleges. In order to construct the scale of Chinese college students'ability to speak and act in English, we should ensurethe universality, representativeness and authority of the source of descriptive language and the accuracy, clarity, conciseness,independence and affirmation of descriptive language. Learners can also use the scale to self-evaluate and establish their ownlearning goals. At the same time, the learning time required for each stage is not the same. The learner should determine his ownlearning plan according to his own situation and the standard reference provided by the scale. Its ability grading reflects thecorrespondence between the English level of students in each scholastic school and the ability to describe the descriptors, and it istargeted and instructive for college English teaching. In order to continuously improve the learning effect of college Englishteaching.

关键词： Chinese English Competence Scale College English Teaching

A Study on the Integration of Chinese Excellent Traditional Culture and College English Teaching

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

教育研究前沿（中英文版） 2019年第3期9卷 142-146页

作者： Zhao Weihong xu daoping Wang Hongxia Qingdao Huanghai University QingdaoShandong266427China

At present, the education of English curriculum has become one of the main courses of higher education in China. The purpose ofEnglish teaching is to enable students to master the language and use it for intercultural communication. As the main body offoreign exchange in the new era, college students are facing the heavy responsibility of the development of the new era and theimportant carrier of foreign exchange. The infiltration of Chinese excellent traditional culture into college English teaching can notonly deepen students'understanding of Western culture, but also enable them to appreciate the vastness and depth of their ownnational culture, thus promoting cultural integration and improving students' English cognitive and application level. Infiltration inEnglish teaching is an innovation in the ways and methods of ideological and moral education. Strengthen the teaching of Chinesetraditional Chinese culture in college English, encourage English teachers to integrate into the teaching innovation of Chineseexcellent traditional culture, create a classroom teaching atmosphere of Chinese excellent traditional culture, and innovate teachingmethods to create an environment for the introduction of Chinese excellent traditional culture.

关键词： Chinese Excellent Traditional Culture College English Integration

盐水微滴/泡沫铜复合体系中甲烷水合物生成动力学研究

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

化工学报 2024年第9期75卷 3287-3296页

作者：徐宏标杨亮李子栋刘道平上海理工大学能源与动力工程学院上海200093 上海市动力工程多相流动与传热重点实验室上海200093

提高海水水合储气速率和储气密度对水合物技术规模化应用至关重要。将一定浓度的NaCl溶液与疏水性气相纳米二氧化硅高速搅拌分散成微米级盐水微滴。8.0 MPa、274.15 K条件下,利用不同硅含量的盐水微滴进行水合储甲烷实验,研究甲烷水合... 详细信息

提高海水水合储气速率和储气密度对水合物技术规模化应用至关重要。将一定浓度的NaCl溶液与疏水性气相纳米二氧化硅高速搅拌分散成微米级盐水微滴。8.0 MPa、274.15 K条件下,利用不同硅含量的盐水微滴进行水合储甲烷实验,研究甲烷水合物生成动力学特性。结果表明,硅含量2.5%(质量分数)的盐水微滴分散性和储气性能最佳,储气量达141.01 cm^(3)·cm^(-3),储气速率达7.37 cm^(3)·cm^(-3)·min^(-1)。进一步将该硅含量盐水微滴填充至开孔泡沫铜中,构建盐水微滴/泡沫铜复合水合储气体系。研究发现,泡沫铜三维巢状金属骨架能显著加速水合反应热的转移,提高微滴水合储气性能。5.0~8.0 MPa下,相较于盐水微滴单一体系,复合体系水合储气量提高4.72%~21.70%,最大储气速率提高38.25%~110.58%。

关键词：盐水微滴泡沫铜甲烷水合物生成动力学促进

维普期刊数据库博看期刊

同方期刊数据库

在线全文

学校读者我要写书评

暂无评论

核电厂高放射性大型部件的退役探讨

机械工程师 2016年第9期 192-195页

作者：徐道平黄祥明上海核工程研究设计院上海200233

以核电厂高放射性大型设备为研究对象,主要针对反应堆压力容器和堆内构件的退役方案与方法、切割与解体技术及设备进行了探讨与比较。阐述了压力容器和堆内构件退役中的关键技术。同时以水下高压射流切割和机械切割技术为研究重点,分析... 详细信息

以核电厂高放射性大型设备为研究对象,主要针对反应堆压力容器和堆内构件的退役方案与方法、切割与解体技术及设备进行了探讨与比较。阐述了压力容器和堆内构件退役中的关键技术。同时以水下高压射流切割和机械切割技术为研究重点,分析了两项技术在高放射性大型设备退役过程中的应用。

关键词：压力容器堆内构件切割解体退役大型部件

Water consumption and biodiversity:Responses to global emergency events

在线全文

学校读者我要写书评

暂无评论

Science Bulletin 2024年第16期69卷 2632-2646页

作者： Dandan Zhao Junguo Liu Laixiang Sun Klaus Hubacek Stephan Pfister Kuishuang Feng Heran Zheng xu Peng daoping Wang Hong Yang Lei Shen Fei Lun xu Zhao Bin Chen Marko Keskinen Shaohui Zhang Jialiang Cai Olli Varis Water&Development Research Group Department of Built EnvironmentAalto UniversityEspoo 15200Finland School of Water Conservancy North China University of Water Resources and Electric PowerZhengzhou 450046China School of Environmental Science and Engineering Southern University of Science and TechnologyShenzhen 518055China Department of Geographical Sciences University of MarylandCollege Park 20742USA School of Finance and Management SOASUniversity of LondonLondon WC1H0XGUK Integrated Research on Energy Environment and SocietyEnergy and Sustainability Research Institute GroningenUniversity of GroningenGroningen 9747AGthe Netherlands ETH Zurich Institute of Environmental EngineeringZurich 8093Switzerland The Bartlett School of Sustainable Construction University College LondonLondon WC1E6BTUK School of Business Jiangnan UniversityWuxi 214122China Department of Computer Science and Technology University of CambridgeCambridge CB21TNUK w2e Environmental Consulting GmbH Duebendorf 8600Switzerland Key Laboratory for Resource Use and Environmental Remediation Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China College of Land Science and Technology China Agricultural UniversityBeijing 100083China Institute of Blue and Green Development Shandong UniversityWeihai 264209China Fudan Tyndall Center Department of Environmental Science and EngineeringFudan UniversityShanghai 200438China School of Economics and Management Beihang UniversityBeijing 100191China International Institute for Applied Systems Analysis Laxenburg A-2361Austria

Given that it was a once-in-a-century emergency event,the confinement measures related to the coronavirus disease 2019(COVID-19)pandemic caused diverse disruptions and changes in life and work *** changes significantly affected water consumption both during and after the pandemic,with direct and indirect consequences on ***,there has been a lack of holistic evaluation of these ***,we propose a novel framework to study the impacts of this unique global emergency event by embedding an environmentally extended supply-constrained global multi-regional input-output model(MRIO)into the drivers-pressure-state-impact-response(DPSIR)*** framework allowed us to develop scenarios related to COVID-19 confinement measures to quantify country-sector-specific changes in freshwater consumption and the associated changes in biodiversity for the period of *** results suggest progressively diminishing impacts due to the implementation of COVID-19 vaccines and the socio-economic system’s self-adjustment to the new *** 2020,the confinement measures were estimated to decrease global water consumption by about 5.7% on average across all scenarios when compared with the baseline level with no confinement ***,such a decrease is estimated to lead to a reduction of around 5% in the related pressure on *** the interdependencies and interactions across global supply chains,even those countries and sectors that were not directly affected by the COVID-19 shocks experienced significant impacts:Our results indicate that the supply chain propagations contributed to 79% of the total estimated decrease in water consumption and 84%of the reduction in biodiversity loss on *** study demonstrates that the MRIO-enhanced DSPIR framework can help quantify resource pressures and the resultant environmental impacts across supply chains when facing a global emergency ***,we recommend the development o

关键词： Global emergency events Water-biodiversity causal effect COVID-19 Biodiversity MRIO-enhanced DPSIR framework Supply-chain network High-resolution water consumption dataset Supply-constrained multi-regional input-output(mixed MRIO)model

在线全文

学校读者我要写书评

暂无评论

茶叶酵素无机陶瓷膜过滤工艺优化

食品工业科技 2024年第4期45卷 180-186页

作者：李春燕魏福晓王瑜张朝举徐甜甜王道平贵州省天然产物研究中心贵州医科大学省部共建药用植物功效与利用国家重点实验室贵州贵阳550014

为了提高茶叶酵素的澄清度,同时保证茶叶酵素在澄清过程中功能成分得到最大的保留,本试验以夏秋茶发酵所得茶叶酵素为原料,采用单因素实验和响应面试验考察无机陶瓷膜孔径、过膜功率、过膜压力、过膜温度对过膜后酵素液功能成分含量、... 详细信息

为了提高茶叶酵素的澄清度,同时保证茶叶酵素在澄清过程中功能成分得到最大的保留,本试验以夏秋茶发酵所得茶叶酵素为原料,采用单因素实验和响应面试验考察无机陶瓷膜孔径、过膜功率、过膜压力、过膜温度对过膜后酵素液功能成分含量、膜通量、透光率、可溶性固形物含量的影响,旨在优选出最佳的茶叶酵素陶瓷膜过滤条件。结果表明,茶叶酵素陶瓷膜过滤的最佳条件为:膜孔径400 nm、过膜功率47 Hz、过膜压力0.28±0.02 MPa,过膜温度15±2℃,在此条件下,茶叶酵素中茶多酚含量保留率为95.28%,茶氨酸含量保留率为82.91%,锌含量保留率为90.48%,硒含量保留率为91.67%,可溶性固形物含量保留率为84.46%,透光率为85.10%±0.12%,透光率与过膜前相比提高了2.5倍,膜通量为123.25±2.68 m^(3)/(m^(2)·h),该条件既能最大程度的保留茶叶酵素中功能成分的含量,又能使茶叶酵素透亮、均一。因此,采用该条件对茶叶酵素进行过滤澄清方法可行。

关键词：茶叶酵素无机陶瓷膜过滤工艺优化茶多酚茶氨酸保留率

维普期刊数据库博看期刊

在线全文

学校读者我要写书评

暂无评论

贵州省竹类植物分布新资料(Ⅰ)

西北植物学报 2024年第6期44卷 1009-1016页

作者：徐雪代朝霞伍明理韦堂航杨道平苟光前贵州大学生命科学学院农业生物工程研究院山地植物资源保护与保护种质创新教育部重点实验室贵阳550025 贵州大学林学院贵阳550025 贵州省望谟县林业局贵州望谟552300 贵州省桐梓县林业局贵州桐梓563200

[目的]摸清贵州竹类资源本底,以补充和丰富贵州现有竹类资料,为后续竹产业的规划发展提供一定依据。[方法]以“面”“点”结合的方式进行野外调查、标本采集和鉴定,以及查阅相关资料,整理出新分布记录的属和种。[结果]发现贵州省竹类植... 详细信息

[目的]摸清贵州竹类资源本底,以补充和丰富贵州现有竹类资料,为后续竹产业的规划发展提供一定依据。[方法]以“面”“点”结合的方式进行野外调查、标本采集和鉴定,以及查阅相关资料,整理出新分布记录的属和种。[结果]发现贵州省竹类植物新记录的1个属和6个种,即簩竹属(Schizostachyum)、簩竹(*** McClure)、鸡窦簕竹(BambusafunghomiiMcClure)、龙山玉山竹(***&***)、滑竹(***)、少枝玉山竹(***)和抱鸡竹(***)。[结论]在贵州发现的这些新记录属和种扩展了其分布范围,也丰富了贵州竹类植物的多样性。

关键词：贵州竹类植物新记录