检索结果-南通市图书馆

碳中和与稳增长协同推进的机制设计与实现路径

在线全文

学校读者我要写书评

暂无评论

北京工商大学学报（社会科学版） 2023年第1期38卷 77-87页

作者：徐丹丹北京工商大学经济学院北京100048

党的二十大强调,中国式现代化是人与自然和谐共生的现代化,要坚定不移走生产发展、生活富裕、生态良好的文明发展道路,实现中华民族永续发展。协同推进碳中和与稳增长是实现中华民族永续发展的本质要求,是推动经济高质量发展的必由之路... 详细信息

党的二十大强调,中国式现代化是人与自然和谐共生的现代化,要坚定不移走生产发展、生活富裕、生态良好的文明发展道路,实现中华民族永续发展。协同推进碳中和与稳增长是实现中华民族永续发展的本质要求,是推动经济高质量发展的必由之路,是满足人民群众日益增长的优美生态环境需求的内在要求,是构建人类命运共同体的必然选择。然而,碳中和与稳增长面临能源结构调整和产业结构转型挑战的叠加,是多重目标、多重约束的经济社会系统性变革,即节能降碳减污与经济增长存在两难抉择。应当建立流动机制,推动减碳与发展平衡;建立供求机制,促进产业链协同减碳;建立长效机制,兼顾短期与长期目标;建立激励约束机制,实现政府与市场双轮驱动;建立开放机制,推动国际与国内低碳循环。就实现路径而言,应努力形成“供给侧—需求侧—市场—政府”四联并行的合力,协同推进国家政策体系、产业发展体系、企业生产体系和家庭消费体系的多层次系统变革。

关键词：碳中和稳增长高质量发展碳金融市场数字技术绿色消费

从无知之幕到分配正义——罗尔斯正义论的“哲学—历史”逻辑演进

在线全文

学校读者我要写书评

暂无评论

南京社会科学 2012年第8期 69-73,61页

作者：徐丹丹中国人民公安大学公安管理系

罗尔斯正义论体系分为理想理论和非理想理论。"次序"或"优先性"是衔接两部分的关键,它赋予正义论体系最鲜明的逻辑特征。原初状态的理性人,内蕴着一种历史的观念,是逻辑和历史的起点。制度正义连接正义原则和分配正义,是体现逻辑和历史... 详细信息

罗尔斯正义论体系分为理想理论和非理想理论。"次序"或"优先性"是衔接两部分的关键,它赋予正义论体系最鲜明的逻辑特征。原初状态的理性人,内蕴着一种历史的观念,是逻辑和历史的起点。制度正义连接正义原则和分配正义,是体现逻辑和历史交汇的核心地带。随着正义原则由社会基本结构进入现实分配领域,不完善的一般性继续进化为合理的一般性——一种历史的理性。至此,从原初状态开始的哲学和历史结合的逻辑基本实现了它本身的发展形式,即从逻辑一般到现实历史。

关键词：罗尔斯正义论哲学历史逻辑

采用流动注射分析仪总氮通道测定硝酸盐氮的探讨

在线全文

学校读者我要写书评

暂无评论

工业水处理 2023年第5期43卷 158-161页

作者：许丹丹广东省珠海生态环境监测站广东珠海519000

将流动注射分析仪总氮通道与消解相关的管路进行调整、简单改装并调整进样程序参数后用于测定硝酸盐氮项目。采用改装后的流动注射分析仪总氮通道绘制的硝酸盐氮标准曲线的斜率为0.0017,相关系数r值为0.9998,线性结果良好。根据《环境... 详细信息

将流动注射分析仪总氮通道与消解相关的管路进行调整、简单改装并调整进样程序参数后用于测定硝酸盐氮项目。采用改装后的流动注射分析仪总氮通道绘制的硝酸盐氮标准曲线的斜率为0.0017,相关系数r值为0.9998,线性结果良好。根据《环境监测分析方法标准制订技术导则》(HJ 168—2020)的相关规定分别验证该方法的检出限、测定下限。结果表明,检出限为0.002 mg/L,测定下限为0.008 mg/L。同时对标准样品进行检测,标准样品的检测结果合格,相对标准偏差为1.46%。对地表水、地下水和废水进行检测,其相对标准偏差分别为0.28%、0.40%和0.25%。为检验该方法与环境标准方法的测定结果是否具有显著性差异,采用配对样本t检验法将该方法与环境标准方法进行比对,结果表示2种方法无显著性差异。

关键词：流动注射分析仪总氮通道硝酸盐氮

维普期刊数据库博看期刊

Biological activity of pterostilbene against Peronophythora litchii,the litchi downy blight pathogen

在线全文

学校读者我要写书评

暂无评论

Biological activity of pterostilbene against Peronophythora ...

Short-circuit failure modes and mechanism investigation of 1200 V planar SiC MOSFETs

中国植物病理学会第十一届全国会员代表大会暨2018年学术年会

作者： xu dandan Deng Yizhen Xi Pinggen Gao Lingwang Jiang Zide Department of Plant Pathology Guangdong Province Key Laboratory of Microbial Signals and Disease ControlSouth China Agricultural University College of Plant Protection China Agricultural University

Peronophythora litchii,the oomycete pathogen of litchi downy blight,infects leaves,flowers and fruits of litchi,leading to great economic loss during fruit riping,storage and ***,the new effective,environment-friendly fungicide(s) is urgently *** this study,eight phenolic compounds which exhibited strong bioactivity on Botrytis cinerea were selected to test their effectiveness on the inhibition of ***,which conducted by treating sporangia suspension with different tested phenolic compounds at the concentration of 10 and 50 mg/*** results indicated that pterostilbene showed strongest antifungal activity on sporangia germination among all tested compounds,which substantially suppressed sporangia germination of ***,with inhibition rate of 100%in the treatment of pterostilbene at 32 mg/L,and its IC value on zoospore release was evaluated to be 6.8 mg/***,Sytox green uptake assay and ultrastructure observation were used to explore to the action mechanism of pterostilbene on the inhibition of ***,the results showed that pterostilbene significantly inhibit the mycelial growth and induced deleterious morphological modifications and ultrastructural alteration,including deformation and shrinking of mycelia and sporangia,the damage of cell wall,plasma membrane and *** fruit decay and peel browning caused by *** during postharvest storage or transportation are two major factors affecting the commercial value of litchi fruit,and the effectiveness of pterostilbene on litchi downy blight control was *** assay demonstrated pterostilbene application significantly reduced the decay of litchi fruit and leaf and peel browning caused by ***,with the decay index reduction up to 48.6%and peel browning of litchi reduced from 3.5 to 1.8 after treated with 1 600 mg/L *** research provides further proof that pterostilbene is a potential and better candidate agent for antifungal agrochem

关键词： Litchi postharvest rot pterostilbene antifungal activity peel browning

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Journal of Semiconductors 2024年第12期45卷 136-143页

作者： Yi Huang Qiurui Chen Rongyao Ma Kaifeng Tang Qi Wang Hongsheng Zhang Ji Ding dandan xu Sheng Gao Genquan Han School of Optoelectronic Engineering Chongqing University of Posts and TelecommunicationsChongqing 400065China China Resources Microelectronics(Chongqing)Limited Chongqing 400030China School of microelectronics Xidian UniversityXi'an 710126China

This paper presents a comprehensive analysis of the short-circuit failure mechanisms in commercial 1.2 kV planar sili-con carbide(SiC)metal–oxide–semiconductor field-effect transistors(MOSFETs)under 400 and 800 V bus voltage *** study compares two products with varying short-circuit tolerances,scrutinizing their external characteristics and intrinsic fac-tors that influence their short-circuit *** and numerical analyses reveal that at 400 V,the differential ther-mal expansion between the source metal and the dielectric leads to cracking,which in turn facilitates the infiltration of liquid metal and results in a gate–source short *** 800 V,the failure mechanism is markedly different,attributed to the ther-mal carrier effect leading to the degradation of the gate oxide,which impedes the device's capacity to switch off,thereby trig-gering thermal *** paper proposes strategies to augment the short-circuit robustness of SiC MOSFETs at both volt-age levels,with the objective of fortifying the device's resistance to such failures.

关键词： SiC MOSFETs short-circuit failure mode mechanical stresses cracks hot spot

Factors associated with red blood cell transfusion among hospitalized patients: a cross-sectional study

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

Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2021年第12期22卷 1060-1064页

作者： Peiwen ZHANG dandan xu Xinhan ZHANG Mengyin WU xuecheng YAO Dawei CUI Jue XIE Department of Blood Transfusion the First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China Department of Epidemiology and Biostatistics Zhejiang University School of Public HealthHangzhou 310058China

Red blood cell(RBC)transfusion is a clinically effective therapy in anemia,for example in patients with malignancies(Shander et al.,2020),bleeding(Odutayo et al.,2017),and preoperative anemia(Pad-manabhan et al.,2019).The past few decades have witnessed a shortage of blood for transfusion due to limited health insurance coverage for blood use and the rapid expansion of hospitals(Chen et al.,2011;Shi et al.,2014).Blood donation levels may easily be affected by general changes in the environment,policy,major events such as disasters,and public sentiment(Hu et al.,2019).

关键词： transfusion patients

基于多重反馈环路技术的0.8～5.2GHz CMOS宽带LNA设计

在线全文

学校读者我要写书评

暂无评论

湖南大学学报（自然科学版） 2017年第4期44卷 124-130页

作者：万求真吴潇婷徐蒙徐丹丹湖南师范大学物理与信息科学学院湖南长沙410081

在传统共栅放大器结构基础上,基于0.18μm CMOS工艺,提出一种带多重反馈环路技术的0.8~5.2GHz宽带低噪声放大器(LNA).该电路采用的负反馈结构在改善噪声系数和输入阻抗匹配的同时并不需要消耗额外的功耗;采用的双重正反馈结构增加了输入... 详细信息

在传统共栅放大器结构基础上,基于0.18μm CMOS工艺,提出一种带多重反馈环路技术的0.8~5.2GHz宽带低噪声放大器(LNA).该电路采用的负反馈结构在改善噪声系数和输入阻抗匹配的同时并不需要消耗额外的功耗;采用的双重正反馈结构增加了输入级MOS管跨导设计的灵活性,并可通过输出负载阻抗反过来控制输入阻抗匹配,使得提出的LNA在宽频率范围内实现功率增益、输入阻抗与噪声系数的同时优化.后版图仿真结果显示,在0.8~5.2GHz频段内,该宽带LNA的功率增益范围为12.0~14.5dB,输入反射系数S_(11)为-8.0^-17.6dB,输出反射系数S_(22)为-10.0^-32.4dB,反向传输系数S12小于-45.6dB,噪声系数NF为3.7~4.1dB.在3GHz时的输入三阶交调点IIP3为-4.0dBm.芯片在1.5V电源电压下,消耗的功率仅为9.0mW,芯片总面积为0.7mm×0.8mm.

关键词： CMOS 射频集成电路低噪声放大器宽带多重反馈环路技术

In vitro and in vivo effectiveness of phenolic compounds for the control of postharvest gray mold of table grapes

在线全文

学校读者我要写书评

暂无评论

In vitro and in vivo effectiveness of phenolic compounds for...

中国植物病理学会第十一届全国会员代表大会暨2018年学术年会

作者： xu dandan Deng Yizhen Xi Pinggen Wang Qi Jiang Zide Gao Lingwang College of Plant Protection China Agricultural University Department of Plant Pathology Guangdong Province Key Laboratory of Microbial Signals and Disease ControlSouth China Agricultural University

Botrytis cinerea is the pathogen of gray mold disease leads to huge postharvest losses and is considered as the main postharvest decay of table grapes(Vitis vinifera).In consideration of the hazardous effect of SO application on human health and environment,alternatives to SO are urgently *** the natural antimicrobial metabolites,phenolic compounds were reported to be effective in the inhibition of phytopathogenic fungi,including the postharvest decay ***,comprehensive study on the biological activity of phenolic compounds and their application on controlling postharvest gray mold of table grapes is *** this study,the antifungal effect of 18 natural or synthetic phenolic compounds purchased from commercial suppliers,including simple phenolic,phenolic acids,stilbenes and flavonoids,were determined on four gray mold strains by the agar dilution ***,seven phenolic compounds(naringenin,coumarin,resveratrol,ferulic acid,catechol,piceatannol and pterostilbene) were effective on inhibiting *** growth and were selected to test their activity on conidial germination as well as in vivo application on grape *** showed the highest antifungal activity and greatly reduced the growth of the mycelia,caused hyphae deformation,suppressed conidial germination of ***,and completely inhibited the germination of conidia at the concentration of 50 mg/***,treatment of grape berries with pterostilbene and piceatannol significantly reduced the disease incidence and *** results demonstrate the antifungal activity of phenolic compounds and highlight the great potential of natural compounds to be used as alternative strategy to traditional fungicides in the control of postharvest gray mold of table grapes.

关键词： Antifungal activity Piceatannol Postharvest decay Pterostilbene

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

老化焦虑评估工具的研究进展

中华护理杂志 2023年第19期58卷 2358-2363页

作者：徐丹丹李小寒中国医科大学护理学院沈阳市110122

老化指由于年龄增长带来的生理、心理以及社会功能方面的改变,包括机体功能下降、认知功能退化、社会关系丧失等,老化焦虑指个人对未来可能出现的、老化相关问题的担忧和恐惧。该文综述了国内外老化焦虑评估工具的研制、内容、信效度和... 详细信息

老化指由于年龄增长带来的生理、心理以及社会功能方面的改变,包括机体功能下降、认知功能退化、社会关系丧失等,老化焦虑指个人对未来可能出现的、老化相关问题的担忧和恐惧。该文综述了国内外老化焦虑评估工具的研制、内容、信效度和应用情况,比较分析各评估工具的特点和局限性,以期为本土化老化焦虑评估工具的开发和应用提供参考,为科学评估老化焦虑水平、构建有效的老化焦虑干预方案提供依据。

关键词：老化老化焦虑评估工具综述