检索结果-南通市图书馆

力竭后补充富氢水和葡萄糖对疲劳恢复趋势的影响

在线全文

学校读者我要写书评

暂无评论

广东医学 2017年第18期38卷 2750-2754页

作者：邹仙李沁原左都霜易伦羽邹毅秦启忠重庆医科大学儿科学院重庆400016 重庆医科大学教学管理中心重庆401331

目的探讨力竭运动后即刻给予葡萄糖和(或)富氢水对大鼠丙二醛、肌糖原、运动耐力随时间的变化趋势。方法通过对力竭运动后SD大鼠即刻灌胃给予生理盐水(生理盐水组)、富氢水(富氢水组)、葡萄糖(葡萄糖组)、葡萄糖和富氢水联合(联合组)等... 详细信息

目的探讨力竭运动后即刻给予葡萄糖和(或)富氢水对大鼠丙二醛、肌糖原、运动耐力随时间的变化趋势。方法通过对力竭运动后SD大鼠即刻灌胃给予生理盐水(生理盐水组)、富氢水(富氢水组)、葡萄糖(葡萄糖组)、葡萄糖和富氢水联合(联合组)等处理,检测各恢复时间点(力竭运动后1、3、6、8 h)血清丙二醛、腓肠肌肌糖原浓度及运动耐力。结果 (1)组内比较,各组内各时间点丙二醛、运动耐力随时间的变化趋势差异无统计学意义,肌糖原含量有上升趋势。(2)组间比较,富氢水组、联合组丙二醛低于生理盐水组(P<0.05,P<0.01);葡萄糖组、联合组肌糖原显著高于生理盐水组(P<0.01),联合组运动耐力均显著高于生理盐水组(P<0.01)。结论力竭运动后葡萄糖联合富氢水能有效降低血清丙二醛,增加腓肠肌肌糖原,增加运动耐力;单独给予葡萄糖仅能增加肌糖原;单独给予富氢水仅能降低血清丙二醛;但在各实验处理下,除肌糖原有随时间上升趋势外,血清丙二醛、运动耐力均无明显变化趋势。

关键词：力竭运动疲劳恢复葡萄糖富氢水变化趋势

Energy-based Directional Pilot Protection for Distribution Networks with IBDGs Considering Unmeasured Load Switching

在线全文

学校读者我要写书评

暂无评论

CSEE Journal of Power and Energy Systems 2024年第1期10卷 139-150页

作者： Chenghan Zhou Guibin zou Shuo Zhang Xuhui Wen Key Laboratory of Power System Intelligent Dispatch and Control of Ministry of Education Shandong UniversityJinan 250061China

Inverter-based distributed generations(IBDGs)are the main approach to utilizing clean energy in distribution networks(DNs).Compared with synchronous source,fault response of IBDG is very *** a result,in DNs with high penetration of IBDGs,legacy protection schemes will no longer be *** this paper,an energy-based directional pilot protection scheme suitabie for DNs with IBDGs is *** scheme considers the large range of phase angle caused by IBDG integration and uses improved energy polarity criterion to determine fault *** addition,magnitude of energy is used to distinguish between faults and load switching to overcome maloperation of directional pilot protection caused by internal unmeasured load *** proposed scheme first uses local measured information to determine fault direction sign and then exchanges the direction sign with the remote *** scheme does not require high-bandwidth communication and strict data synchronization,so it can be implemented at a low ***,simulation studies verify effectiveness of the proposed scheme.

关键词： Distribution network energy polarity inverterbased distributed generation pilot protection unmeasured load

Methane activation by[LnO]^(+):the 4f orbital matters

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

Science China Chemistry 2024年第1期67卷 330-335页

作者： Bowei Yuan Jingxiang zou Mincheng Yu Shaodong Zhou College of Chemical and Biological Engineering Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture TechnologyZhejiang UniversityHangzhou 310027China Zhejiang Provincial Innovation Center of Advanced Chemicals Technology Institute of Zhejiang University–QuzhouQuzhou 324000China Laboratory for Sciences and Technologies of Energy Materials of Fujian Province(IKKEM) Xiamen 361005China

Gas-phase reactions of[LnO]^(+)with methane have been studied by using inductively coupled plasma-mass spectrometer(ICP-MS)combined with quantum chemical *** indicate that the[LnO]^(+)(Ln=Sm-Lu)ions are able to activate methane to generate methyl *** particular,[EuO]^(+)and[YbO]^(+)exhibit the highest ***,ab initio computations reveal a novel HAT process operating in the absence of a terminal oxygen radical,as mediated by[EuO]^(+)and[YbO]^(+).Such a process diverges from previous findings on the methane activation by metal oxide clusters,not only on the electronic pattern during the course of hydrogen transfer,but also on the important role that 4f electrons *** associated electronic origins have been discussed,and the well-designed 4f electron occupation may turn to be a promising approach in constructing lanthanide involved catalysts.

关键词： lanthanide oxides methane activation 4f orbitals quantum chemical calculation ion-molecule reaction

Real-time Energy Management Method for Electric-hydrogen Hybrid Energy Storage Microgrids Based on DP-MPC

在线全文

学校读者我要写书评

暂无评论

CSEE Journal of Power and Energy Systems 2024年第1期10卷 324-336页

作者： Qi Li Xueli zou Yuchen Pu Weirong Chen School of Electrical Engineering Southwest Jiaotong UniversityChengdu 611756China

With the increasing presence of intermittent energy resources in microgrids,it is difficult to precisely predict the output of renewable resources and their load *** order to realize the economical operations of the system,an energy management method based on a model predictive control(MPC)and dynamic programming(DP)algorithm is *** method can reasonably distribute the energy of the battery,fuel cell,electrolyzer and external grid,and maximize the output of the distributed power supply while ensuring the power balance and cost optimization of the *** on an ultra-shortterm forecast,the output power of the photovoltaic array and the demand power of the system load are *** offline global optimization of traditional dynamic programming is replaced by the repeated rolling optimization in a limited period of time to obtain power values of each unit in the energy storage *** with the traditional DP,MILP-MPC and the logic based real-time management method,the proposed energy management method is proved to be feasible and effective.

关键词： Electric-hydrogen hybrid energy economic energy management improved dynamic programming microgrid model predictive control

A visible-light-assisted Pd/TiO_(2)gas sensor with carbon nanotubes electrodes for trace formaldehyde detection

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

Rare Metals 2024年第1期43卷 257-266页

作者： Can Liu Qiao-Qiao zou Bin Liu Yong Zhang School of Physics and Optoelectronics Xiangtan UniversityXiangtan 411105China Hunan Institute of Advanced Sensing and Information Technology Xiangtan UniversityXiangtan 411105China School of Materials Science and Engineering Xiangtan UniversityXiangtan 411105China

Owing to the ppb-level detection standard toward the toxic and harmful gas,the detection of trace gases has become an important subject in the field of indoor environment ***,the traditional resistive gas sensors hardly meet the requirement due to the weak signal generated by trace gas molecules that are difficult to ***,a visible-light-assisted Pd/TiO_(2)gas sensor is proposed to endow the effective detection of trace formaldehyde(HCHO)gas without heating *** from the enhanced photocatalytic properties of TiO_(2)by Pd decoration,the visible-light-assisted Pd/TiO_(2)gas sensor can detect the HCHO gas as low as80×10^(–9)at room *** successful preparation of nanoscale TiO_(2)sensing layer is facilitated by the ultrathin carbon nanotube interdigital electrode in the gas sensor,which avoids the discontinuity of the sensing layer caused by the excessive thickness of the traditional metal *** addition,the whole preparation process of the Pd/TiO_(2)gas sensor with carbon nanotube electrodes is compatible with mainstream CMOS fabrication technology,which is expected to realize the batch fabrication and micro-integrated application of gas *** is expected that our work can provide a new strategy for the batch preparation of high-performance trace HCHO gas sensors and their future applications in portable electronic devices such as smartphones.

关键词： Visible-light-assisted gas sensor Pd/TiO_(2) Trace HCHO detection Carbon nanotubes electrodes

Narrowband blue emitter based on fused nitrogen/carbonyl combination with external quantum efficiency approaching 30%

在线全文

学校读者我要写书评

暂无评论

Science China Chemistry 2024年第1期67卷 351-359页

作者： Long Chen Jia-Heng Cai You-Jun Yu Yang-Kun Qu Sheng-yi Yang Sheng-Nan zou Rui-Hong Liu Dong-ying Zhou Liang-Sheng Liao Zuo-Quan Jiang Institute of Functional Nano&Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials&DevicesSoochow UniversitySuzhou 215123China Macao Institute of Materials Science and Engineering Macao University of Science and TechnologyMacao 999078China

Multi-resonance thermally activated delayed fluorescence(MR-TADF)emitters can enable narrowband emission with high color purity and electroluminescence ***/carbonyl(N/C=O)system is receiving increasing attention while the nitrogen/boron(N/B)system has been widely *** decoration is an effective approach for N/B type MR-TADF system but always leads to broadening and red-shifting of the emission band in N/C=O MR-TADF *** attribute these unfavorable phenomena to the formation of intramolecular charge transfer between the MR-core and peripheral *** address this issue,we have developed a new strategy by decorating DMQAO(a fused N/C=O MR-core)with a triazine acceptor and a neutral terphenyl group to construct MTDMQAO and MBDMQAO,*** introduction of the triazine acceptor not only realizes efficient narrowband emission in MTDMQAO,but also accelerates the reverse intersystem crossing process through enhanced spin-orbital *** a result,MTDMQAO exhibits a significantly higher external quantum efficiency of 29.4%compared to the referent emitters,validating the rationality of our derivation *** study highlights the potential of the N/C=O system for MR-TADF emitters and provides important insights for understanding the difference between N/B and N/C=O systems.

关键词： carbonyl group narrowband acceptor decoration thermally activated delayed fluorescence OLEDs

超越乡缘的民国徽商新式工业经营——以汪新斋出口蛋业为例

在线全文

学校读者我要写书评

暂无评论

安徽史学 2024年第5期 111-119页

作者：邹怡复旦大学中国历史地理研究所上海200433

苏州桃花坞木刻年画博物馆所在的朴园,为旅沪徽商汪新斋(1886-1946)于1932年建成的私家园林。汪新斋祖籍婺源,清末民初在上海从事出口业,积累了丰厚的资财。一战期间及战后,欧美市场亟需蛋品。汪新斋抓住机会,在1915年至1923年,通过收... 详细信息

苏州桃花坞木刻年画博物馆所在的朴园,为旅沪徽商汪新斋(1886-1946)于1932年建成的私家园林。汪新斋祖籍婺源,清末民初在上海从事出口业,积累了丰厚的资财。一战期间及战后,欧美市场亟需蛋品。汪新斋抓住机会,在1915年至1923年,通过收购、合伙、独资等方式,在津浦铁路和京杭大运河沿线创办了夏镇同兴祥、济宁同新祥、徐州宏裕昌、清江增新祥、宿州裕华新记5家蛋厂,并在上海设立了4家蛋品出口商行,产品主销欧美市场。汪新斋的出口蛋业在1920年代达致鼎盛,1930年代趋于衰落,最终在抗战时期遭到毁灭性打击。汪新斋虽为徽商,但其产业扩展并未显著利用地缘纽带,而是更多依靠商会的力量。

关键词：汪新斋蛋业徽商上海

在线全文

学校读者我要写书评

暂无评论

吴觉农任教芜湖师友交谊考述

复旦学报（社会科学版） 2024年第2期66卷 127-138页

作者：邹怡复旦大学历史地理研究中心上海200433

著名茶学家,复旦大学农学院茶叶系首任系主任吴觉农留日学茶归国后的第一份工作是在安徽芜湖的省立第二甲种农业学校担任教师,从1922年下半年至1923年末,为时一年有余。限于史料,吴觉农的这段经历,诸种传记资料皆语焉不详,多仅述及其因... 详细信息

著名茶学家,复旦大学农学院茶叶系首任系主任吴觉农留日学茶归国后的第一份工作是在安徽芜湖的省立第二甲种农业学校担任教师,从1922年下半年至1923年末,为时一年有余。限于史料,吴觉农的这段经历,诸种传记资料皆语焉不详,多仅述及其因校方拖欠工资,依靠投稿补贴家用。本文梳理了吴觉农任教芜湖期间的师友交谊,透过其与师长同事吴庶晨、卢仲农、佘小宋,与学生俞海清、戴啸洲的交往,考述了吴觉农任教芜湖的原委、开课教授的内容、在芜生活的点滴,以及芜湖一段经历与其茶业生涯之间的关系,充实了吴觉农生平的这一薄弱环节。吴觉农任教芜湖,正是五四余波犹在,国民革命初启之时,德先生、赛先生是为当时青年追寻强国之梦最重要的两条路径。吴觉农及其师友的活动,亦生动反映了传统士人向新式知识分子过渡过程中,因应时代潮流、社会责任与读书治学分合进退的多歧取向。

关键词：吴觉农芜湖佘小宋俞海清戴啸洲

在线全文

学校读者我要写书评

暂无评论

生成与更替:中国宪法原意的时间定位

法学家 2024年第1期 74-87,192,193页

作者：邹奕四川大学法学院

宪法原意即宪法规定被制定、修改时的含义。目前,中国宪法原意的生成和更替在理论上缺乏比较系统、相对清晰的时间定位,此种现状不利于宪法原意解释方法的自立和自足。宪法原意具有规范与历史的双重维度,它以宪法规定为基础,生成于制宪... 详细信息

宪法原意即宪法规定被制定、修改时的含义。目前,中国宪法原意的生成和更替在理论上缺乏比较系统、相对清晰的时间定位,此种现状不利于宪法原意解释方法的自立和自足。宪法原意具有规范与历史的双重维度,它以宪法规定为基础,生成于制宪、修宪之时并且更替于修宪之际。在中国语境下,它的生成时间与制宪、修宪的过程基本重合,始自执政党的特定中央组织公布最初的制宪、修宪决定,终于全国人大通过宪法(修正案)草案。宪法原意解释应当区分制宪史、修宪史与其前后的历史,后者对宪法原意有所牵涉但本身并不承载宪法原意。宪法原意的全面更替和局部更替分别由全面修宪和局部修宪予以实现。在宪法原意的全面更替之中,制宪时以及既往修宪时的宪法原意有可能在一定程度上得到回溯。就宪法原意的局部更替而言,宪法修正案是限定其范围的标准。

关键词：宪法原意原旨主义 1954年宪法 1982年宪法