检索结果-南通市图书馆

Rare Metals 2024年第3期43卷 1017-1029页

作者： Xiang Han Min Xu Lan-Hui Gu Chao-Fei Lan Min-Feng Chen Jun-Jie Lu bi-fu sheng Peng Wang Song-Yan Chen Ji-Zhang Chen College of Materials Science and Engineering Co-Innovation Center of Efficient Processing and Utilization of Forestry ResourcesNanjing Forestry UniversityNanjing210037China Department of Physics Xiamen UniversityXiamen361005China Western Digital Corporation MilpitasCA95035USA

Silicon has ultrahigh capacity,dendrite-free alloy lithiation mechanism and low cost and has been regarded as a promising anode candidate for solid-state *** to the low infiltration of solid-state electrolyte(SSE),not the unstable solid-electrolyte interphase(SEI),but the huge stress during lithiation-and delithiation-induced particle fracture and conductivity lost tend to be the main *** this study,starting with micron-Si,a novel monothetic carbon conductive framework and a MgO coating layer are designed,which serve as electron pathway across the whole electrode and stress releasing layer,*** addition,the in situ reaction between Si and SSE helps to form a LiF-rich and mechanically stable SEI *** a result,the mechanical stability and charge transfer kinetics of the uniquely designed Si anode are significantly ***,high initial Coulombic efficiency,high capacity and durable cycling stability can be achieved by applying the Si@MgO@C anode in *** example,high specific capacity of 3224.6 mAh·g^(-1)and long cycling durability of 200 cycles are *** work provides a new concept for designing alloy-type anode that combines surface coating on particle and electrode structure design.

关键词： Lithium-ion battery(LIB) Solid-state electrolyte(SSE) Silicon anode Stress relief Coating

在线全文

学校读者我要写书评

暂无评论

亚里士多德符合论视野中的“真”

科学技术哲学研究 2012年第1期29卷 31-36页

作者：毕富生山西大学哲学社会学学院太原030006

亚里士多德坚持真理一元论,并贯彻符合论思想,既在认识论中提出了事实真理,又在逻辑学中阐述了逻辑真理。事实真理无疑得到了后人的高度重视,而逻辑真理却鲜有弘扬。重新重视逻辑真理对发展马克思主义真理观无疑具有重大的理论意义。

关键词：亚里士多德真理观事实真理逻辑真理

Tripartite motif-containing protein 11(TRIM11):a novel weapon against Alzheimer’s disease

在线全文

学校读者我要写书评

暂无评论

Signal Transduction and Targeted Therapy 2024年第2期9卷 339-340页

作者： Yichu fu bi Zhang Jianfeng Liu College of Life Science and Technology Key Laboratory of Molecular Biophysics of MOEHuazhong University of Science and TechnologyWuhanHubei 430074China

In a recent study published in Science,Zhang et *** that tripartite motif-containing(TRIM)protein 11(TRIM11)exhibited strong inhibition on tau aggregation,which is a pathological characteristic of tauopathies including Alzheimer’s disease(AD).1 This makes TRIM11 a promising novel target for the treatment of AD and other tauopathies.

关键词： Alzheimer tau TRIM

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

弗雷格真之思想及其意义

科学技术哲学研究 2010年第3期27卷 25-30页

作者：毕富生山西大学哲学社会学学院太原030006

在逻辑与哲学的研究中,弗雷格具有独特的求真方法,弗雷格认为,思想是某种对此能够产生真的问题的东西,逻辑研究的出发点是具有真值的思想。围绕这一宗旨,弗雷格构造了一种形式语言,即概念文字,以此来求真,他在建立了形式语言的基础上,... 详细信息

在逻辑与哲学的研究中,弗雷格具有独特的求真方法,弗雷格认为,思想是某种对此能够产生真的问题的东西,逻辑研究的出发点是具有真值的思想。围绕这一宗旨,弗雷格构造了一种形式语言,即概念文字,以此来求真,他在建立了形式语言的基础上,完成了演算系统的构成,以此来研究真。在此基础上,弗雷格通过研究句子来研究真。在求真中弗雷格坚持了客观性,语境论及概念和对象区分的三个原则。弗雷格真之思想对于后人逻辑研究方式的转变,当今哲学研究方式的转变以及今后中国传统思维的转变都具有一定的意义。

关键词：逻辑思想真形式语言逻辑演算

Recent Advances in Deciphering the Mechanisms and biological functions of DNA Demethylation

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Chemistry 2024年第6期42卷 645-651页

作者： Yang Feng sheng-Jun Chen bi-Feng Yuan Key Laboratory of Aquatic Product Processing Ministry of Agriculture and Rural AffairsNational R&D Center for Aquatic Product ProcessingSouth China Sea Fisheries Research InstituteChinese Academy of Fishery SciencesGuangzhouGuangdong510300 China School of Public Health Research Center of Public HealthRenmin Hospital of Wuhan UniversityWuhan UniversityWuhanHubei430071 China

5-Methylcytosine (5mC) is a dynamic and reversible epigenetic modification in genomic DNA of higher *** has been well-established that the demethylation of 5mC occurs through the ten-eleven translocation (TET)-mediated oxidation of 5mC followed by thymine DNA glycosylase (TDG)-initiated base excision repair (BER).Recent findings also have identified an alternative pathway of DNA *** this pathway,TET enzymes directly oxidize 5mC to form 5-formylcytosine (5fC) or 5-carboxylcytosine (5caC).These modified bases can undergo direct deformylation or decarboxylation,***,DNA demethylation can also occur through the deamination of 5mC and 5hmC,resulting in the production of thymine and 5-hydroxymethyluracil (5hmU),*** DNA demethylation pathways possess critical functional implications and roles in biological *** Recent Advances article will focus on the studies of mechanisms and biological functions of DNA demethylation,shedding light on the reversible nature of the epigenetic modification of 5mC.

关键词： Epigenetics DNA DNA methylation 5-Methylcytosine Demethylation Mechanisms biological functions C—C bond cleavage Mass spectrometry

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

真之视野中的亚里士多德逻辑

山西大学学报(哲学社会科学版) 2010年第1期33卷 9-12页

作者：毕富生山西大学哲学社会学学院

亚里士多德开创了逻辑,为人们提供了一种求真的工具。在哲学上,亚里士多德提出了真之符合论,在这一思想影响下,为达到求真,亚里士多德建立了他的逻辑学说。纵观其哲学与逻辑思想,可以看出,亚里士多德的逻辑学说是围绕"必然地得出"这一... 详细信息

亚里士多德开创了逻辑,为人们提供了一种求真的工具。在哲学上,亚里士多德提出了真之符合论,在这一思想影响下,为达到求真,亚里士多德建立了他的逻辑学说。纵观其哲学与逻辑思想,可以看出,亚里士多德的逻辑学说是围绕"必然地得出"这一观念形成的,而这一观念来源于其求真思想。求真是逻辑的本质,求真的外在形式表现为推理这一技术手段。亚里士多德创立的逻辑是通过推理达到求真的科学。

关键词：真之符合论必然得出是真

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

论逻辑真理和事实真理

山西大学学报(哲学社会科学版) 2008年第6期31卷 11-15页

作者：毕富生山西大学哲学社会学学院

在西方哲学史上,莱布尼茨对逻辑真理和事实真理作了明确的区分。他认为,有两种真理:一种是推理的真理,另一种是事实的真理。推理的真理是必然的,它的反面是不可能的;事实的真理是偶然的,它的反面是可能的。休谟、卡尔纳普、罗素、维特... 详细信息

在西方哲学史上,莱布尼茨对逻辑真理和事实真理作了明确的区分。他认为,有两种真理:一种是推理的真理,另一种是事实的真理。推理的真理是必然的,它的反面是不可能的;事实的真理是偶然的,它的反面是可能的。休谟、卡尔纳普、罗素、维特根斯坦都继承了莱布尼茨的思想路线,坚持在逻辑真理和事实真理之间作出严格的区分,并试图在两者的对比中说明逻辑真理的独特性质。文章通过对逻辑和西方哲学史上逻辑真理研究的回顾,指出逻辑真理和事实真理并非泾渭分明、不可逾越,二者都是对客观现实的反映,在这个意义上,二者是一致的。而且,逻辑真理和事实真理一样,都是相对的、有局限性的。

关键词：逻辑真理事实真理必然真理相对真理

Energy modeling and optimization of building condenser water systems with all-variable speed pumps and tower fans:A case study

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Building Simulation 2024年第7期17卷 1085-1111页

作者： Yong Cao Chuang Wang sheng Wang Xiao fu Xinguo Ming School of Mechanical Engineering Shanghai Jiao Tong UniversityShanghai 200240China State Key Laboratory of Air-Conditioning Equipment and System Energy Conservation Zhuhai 519070China GREE Electric Appliances Inc.of ZhuhaiZhuhai 519070China School of Environment and Energy Engineering Beijing University of Civil Engineering and ArchitectureBeijing 100044China Beijing Advanced Innovation Centerfor future Urban Design Beijing University of Civil Engineering and ArchitectureBeijing 100044China

The emergence of building condenser water systems with all-variable speed pumps and tower fans allows for increased efficiency and flexibility of chiller plants in partial load operation but also increases the control complexity of condenser water *** study aims to develop an integrated modeling technique for evaluating and optimizing the energy performance of such a condenser water *** proposed system model is based on the semi-physical semi-empirical chiller,pump,and cooling tower models,with capabilities of fully considering the hydraulic and thermal interactions in the condenser water loop,being solved analytically and much faster than iterative solvers and supporting the explicit optimization of the pump and tower fan frequency.A mathematical approach,based on the system model and constrained optimization technique,is subsequently established to evaluate the energy performance of a typical dual setpoint-based variable speed strategy and find its energy-saving potential and most efficient operation by jointly optimizing pumps and tower *** all-variable speed chiller plant from Wuhan,China,is used for a case study to validate the system model’s accuracy and explore its *** results showed that the system model can accurately simulate the condenser water system’s performance under various operating *** optimizing the frequencies of pumps and tower fans,the total system energy consumption can be reduced by 12%–13%compared to the fixed dual setpoint-based strategy with range and approach setpoints of 4℃and 2℃.In contrast,the energy-saving potential of optimizing the cooling tower sequencing is insignificant.A simple joint speed control method for optimizing the pumps and tower fans emerged,i.e.,the optimal pump and fan frequency are linearly correlated(if both are non-extremes)and depend on the chiller part load ratio only,irrespective of the ambient wet-bulb temperature and chilled water supply *** was also foun

关键词： all-variable speed chiller plant model-based optimization hydraulic and thermal coupling analytical solution dual setpoint-based variable speed control optimal joint speed control

CP violation of baryon decays with Nπrescatterings

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics C 2024年第10期48卷 1-10页

作者： Jian-Peng Wang fu-sheng Yu MOE Frontiers Science Center for Rare Isotopes and School of Nuclear Science and TechnologyLanzhou UniversityLanzhou 730000China

There is a long-standing puzzle that the CP violation(CPV)in the baryon systems has never been wellestablished in experiments,while the CPV of mesons have been observed by *** this paper,we propose thatthe CpV of baryon decays can be generated with the rescatterings of a nucleon and a pion into some final states,i.e Nπ→Nπor Nππ.Benelited by the fruitful data of Nπscatterings,we can model-independently analyse the strongphases of b-baryon decays using the partial wave amplitudes of Nπ*** the most difficult problemof non-perturbative dynamics,it makes a great advantage to predict the CpV of baryon decays with a relatively *** understanding of the decay *** study the processes of∧_(b)^(0)→(pπ^(+)π^(-))h^(-)and(pπ^(0))h^(-)with h=πor *** is found that the global CPV of the above processes in the invariant mass regions of Nπscatterings are at theorder of several *** importantly,the local CPV in some regions of the Dalitz plots can reach the order of 10%,or be even *** the predicted results and the experimental data samples,we strong suggest tomeasure the CPV of∧_(b)^(0)→(pπ^(+)π^(-))K^(-),which has a large possibility to achieve the first observation of CPV in thebaryon system.

关键词： CP violation baryon decays Nπscatterings

Distribution and geochemical significance of alkylbenzenes for crude oil with different depositional environments and thermal maturities

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Petroleum Science 2024年第2期21卷 777-790页

作者： bing-Kun Meng Dao-fu Song Yuan Chen sheng-Bao Shi School of Petroleum Engineering and Environmental Engineering Yan'an UniversityYan'an716000ShaanxiChina State Key Laboratory of Petroleum Resources and Prospecting College of GeosciencesChina University of PetroleumBeijing102249China

A total of 45 alkylbenzenes were detected and identified in crude oils with different depositional environments and thermal maturities from the Tarim Basin,Beibuwan Basin,and Songliao Basin using comprehensive two-dimensional gas chromatography time-of-flight mass spectrometry(GC×GCTOFMS).By analyzing the distribution characteristics of C0-C5alkylbenzenes,it is found that the content of some alkylbenzenes varies greatly in crude *** on the distribution characteristics of 1,2,4,5-tetramethylbenzene(Te MB)and 1,2,3,4-Te MB,the ratio of 1,2,4,5-Te MB to 1,2,3,4-Te MB is proposed to indicate the organic matter origin and depositional environment of ancient *** samples originated mainly from lower hydrobiont,algae,bacteria and source rocks deposited under reducing/anoxic conditions have low 1,2,4,5-/1,2,3,4-Te MB values(less than 0.6),while oil samples originated mainly from terrestrial higher plants and source rocks deposited under oxic/sub-oxic conditions have higher 1,2,4,5-/1,2,3,4-Te MB values(greater than 1.0).The significant difference of 1,2,4,5-/1,2,3,4-Te MB values is controlled by 1,2,4,5-Te MB content.1,2,4,5-Te MB content in oils derived from source rocks deposited in oxidized sedimentary environment(greater than 1.0 mg/g whole oil)is higher than that in oils from source rocks deposited in reduced sedimentary environment(less than 1.0 mg/g whole oil).1,2,4,5-/1,2,3,4-Te MB ratio might not or slightly be affected by evaporative fractionation,biodegradation and thermal maturity.1,2,4,5-/1,2,3,4-Te MB ratio and 1,2,4,5-Te MB content can be used as supplementary parameter for the identification of sedimentary environment and organic matter *** should be noted that compared to the identification of organic matter sources,the 1,2,4,5-/1,2,3,4-Te MB parameter is more effective in identifying sedimentary environments.

关键词： 1 2 4 5-Tetramethylbenzene GC×GC-TOFMS Organic matter origin Depositional environment