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Recent Progress in Fabrication and Structural Design of Thermal Conductive Polymer Composites

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Chinese Journal of Polymer Science 2024年第3期42卷 277-291,I0004页

作者： yuan-Kai Du Zheng-Xue Shi Shan Dong Hui jin Xue Ke Pei Zhao Bing-Bing Jiang Feng you Hubei Key Laboratory of Plasma Chemistry and Advanced Materials School of Material Science and EngineeringWuhan Institute of TechnologyWuhan 430205China Key Laboratory of Green Preparation and Application of Functional Materials Ministry of EducationHubei UniversityWuhan 430062China Institute of Molecular Aggregation Science Tianjin UniversityTianjin 300072China

In recent years, the demand direction for electronic equipment has expanded into embedded and miniaturized devices. The heat radiation problem has become one of the most significant factors for hindering the development of electronic devices. Since heat radiation material is one of the important components in electronic devices, the demand for enhancing thermal conductivity is also increasingly urgent. Research on thermal conductive polymer composites has become a major direction for developing functional composites. This work reviewed the recent progress in the fabrication of thermal conductive polymer composites. Five different structures are presented, including the using of single fillers,hybrid fillers, double threshold percolation structure, segregated structure and other complex multiphase structures. Specifically, the preparation of high-performance thermal conductive polymer composites was introduced through the combination of various thermal conductive ***, the development direction of high thermal conductive polymer composites was briefly explored.

关键词： Thermal conductive polymer Hybrid fillers Polymer composite Thermal resistance

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类型化移动资源(英文)

软件学报 2005年第5期16卷 979-990页

作者：傅城尤晋元上海交通大学计算机科学与工程系上海200030

在移动资源演算(MR)中发现了一种干扰现象,称为直接访问干扰,该现象比移动灰箱演算(MA)中的墙干扰现象更具破坏力,因为在MR中恶意的环境或上下文可以不受限制地访问进程内部的敏感资源.因而该干扰问题当被视为一种程序运行错误.为了控... 详细信息

在移动资源演算(MR)中发现了一种干扰现象,称为直接访问干扰,该现象比移动灰箱演算(MA)中的墙干扰现象更具破坏力,因为在MR中恶意的环境或上下文可以不受限制地访问进程内部的敏感资源.因而该干扰问题当被视为一种程序运行错误.为了控制直接干扰现象,提出了一种MR的变体:安全移动资源演算(SR).它使用了一种类型系统来避免所有的直接访问干扰的发生.基于该研究,MA中的强干扰现象实际上是直接访问干扰的一种特殊形式,自然地,在SR中也得到了相应的控制.最后给出一些用例,说明如何使用新设计的演算系统,以及它的健壮性.

关键词：并发移动计算进程演算类型系统移动计算

Answering reachability queries with ordered label constraints over labeled graphs

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Frontiers of Computer Science 2024年第1期18卷 105-117页

作者： Daoliang HE Pingpeng yuan Hai jin National Engineering Research Center for Big Data Technology and System Services Computing Technology and System LabCluster and Grid Computing LabSchool of Computer Science&TechnologyHuazhong University of Science and TechnologyWuhan 430074China

Reachability query plays a vital role in many graph analysis *** researches proposed many methods to efficiently answer reachability queries between vertex *** many real graphs are labeled graph,it highly demands Label-Constrained Reachability(LCR)query inwhich constraint includes a set of labels besides vertex *** researches proposed several methods for answering some LCR queries which require appearance of some labels specified in constraints in the *** that constraint may be a label set,query constraint may be ordered labels,namely OLCR(Ordered-Label-Constrained Reachability)queries which retrieve paths matching a sequence of ***,no solutions are available for ***,we propose DHL,a novel bloom filter based indexing technique for answering OLCR *** can be used to check reachability between vertex *** the answers are not no,then constrained DFS is ***,we employ DHL followed by performing constrained DFS to answer OLCR *** show that DHL has a bounded false positive rate,and it's powerful in saving indexing time and *** experiments on 10 real-life graphs and 12 synthetic graphs demonstrate that DHL achieves about 4.8-22.5 times smaller index space and 4.6-114 times less index construction time than two state-of-art techniques for LCR queries,while achieving comparable query response *** results also show that our algorithm can answer OLCR queries effectively.

关键词： graph ordered-label-constrained reachability partial index bloom filter query processing

Recent Progress and Regulation Strategies of Layered Materials as Cathode of Aqueous Zinc-Ion Batteries

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Energy & Environmental Materials 2024年第3期7卷 14-31页

作者： yuan yuan Si Wu Xiaoxue Song jin Yong Lee Baotao Kang School of Chemistry and Chemical Engineering University of JinanJinan 250022China Department of Chemistry Sungkyunkwan UniversitySuwon 16419Korea Shandong Hi-Speed Engineering Test Co. Ltd.Jinan 250022China

Aqueous zinc-ion batteries(ZIBs)have shown great potential in the fields of wearable devices,consumer electronics,and electric vehicles due to their high level of safety,low cost,and multiple electron *** layered cathode materials of ZIBs hold a stable structure during charge and discharge reactions owing to the ultrafast and straightforward(de)intercalation-type storage mechanism of Zn^(2+)ions in their tunable interlayer spacing and their abilities to accommodate other guest ions or ***,the challenges of inadequate energy density,dissolution of active materials,uncontrollable byproducts,increased internal pressure,and a large de-solvation penalty have been deemed an obstacle to the development of *** this review,recent strategies on the structure regulation of layered materials for aqueous zinc-ion energy storage devices are systematically ***,critical science challenges and future outlooks are proposed to guide and promote the development of advanced cathode materials for ZIBs.

关键词： layered cathode materials modifying strategies structure regulation zinc-ion batteries

Fast-bunching design of compact heavy ion RFQ linac

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Nuclear Science and Techniques 2018年第12期29卷 81-88页

作者： Ke-Dong Wang you-jin yuan Xue-Jun Yin Jian-Cheng Yang Heng Du Zhong-Shan Li Xiao-Ni Li He Zhao Zi-Qiang Dong Jie Liu Jia-Wen Xia Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000 China University of Chinese Academy of Sciences Beijing 100049China Huizhou Research Center of Ion Science Huizhou 516003China

We propose the construction of a compact linac as the injector of a cancer therapy facility at the Institute of Modern Physics(IMP) of the Chinese Academy of Sciences(CAS). Based on a traditional setup, a new compact fast-bunching design is first introduced to optimize the 600 keV/u RFQ with a 0.05 pm A ^(12)C^(4+) beam. This shortens the RFQ structure length from the standard design value of272–230 cm while effectively regulating the particle loss and emittance growth. In addition, a detailed error analysis was performed after the optimization process. The error sources cover input beam parameters errors, machining errors and alignment errors. The simulation results show that the beam loss and emittance growth of the RFQ are acceptable and within typical ranges of error.

关键词：线性加速器设计价值 RFQ 重离子单位面积优化过程中国科学院现代物理

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一种提高微内核效率的有效方法

上海交通大学学报 2000年第7期34卷 952-955,959页

作者：刘福岩尤晋元上海交通大学计算机科学及工程系上海200030

提出了一种提高微内核操作系统效率的方法 ,该方法通过在操作系统中实现单地址空间、操作系统内核程序和用户程序在一个处理机状态下运行以及利用 capability实施对资源和特权指令的保护 ,使得当客户进程通过进程通信访问服务器提供的... 详细信息

提出了一种提高微内核操作系统效率的方法 ,该方法通过在操作系统中实现单地址空间、操作系统内核程序和用户程序在一个处理机状态下运行以及利用 capability实施对资源和特权指令的保护 ,使得当客户进程通过进程通信访问服务器提供的服务时 ,不需要执行进程空间的切换和CPU状态的切换。

关键词：操作系统微内核单地址空间进程空间 CPU 切换

Formalization of P Systems by Maude

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Journal of Shanghai Jiaotong university(Science) 2005年第3期10卷 260-264页

作者：戚正伟尤晋元 Dept. of Computer Science and Eng. Shanghai Jiaotong Univ. Shanghai 20 0030 China

Rewriting logic is a unified model of concurrency, which provides a formal commo n framework of well-known models of concurrent systems. A new formal method of t he specification and execution of P systems using rewriting logic was proposed. The powerful tool Ma ude 2.0 is used to implement this specification. In order to present the general ideas in a concr ete case study, a simple and classical example from the literature is adopted to present how to formally spe cify and execute a P system.

关键词： rewriting logic P systems Maude

Effects of vitamin family members on insulin resistance and diabetes complications

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World Journal of Diabetes 2024年第3期15卷 568-571页

作者： Hong-jin Chen Min Wang Ding-Min Zou Gui-you Liang Si-yuan Yang Division of Cardiac Surgery Guizhou Institute of Precision MedicineThe Affiliated Hospital of Guizhou Medical UniversityGuiyang 550009Guizhou ProvinceChina Translational Medicine Research Center Guizhou Medical UniversityGuiyang 550025Guizhou ProvinceChina School of Basic Medical Sciences/School of Biology and Engineering Guizhou Medical UniversityGuiyang 550025Guizhou ProvinceChina

The following letter to the editor highlights the article“Effects of vitamin D supplementation on glucose and lipid metabolism in patients with type 2 diabetes mellitus and risk factors for insulin resistance”in World J Diabetes 2023 Oct 15;14(10):*** is necessary to explore the role of vitamin family members in insulin resistance and diabetes complications.

关键词： Vitamin Insulin resistance Diabetes complications Letter

Single-atom Ag-loaded carbon nitride photocatalysts for efficient degradation of acetaminophen:The role of Ag-atom and O_(2)

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Journal of Environmental Sciences 2024年第5期139卷 12-22页

作者： Yi yuan Wen-Long Wang Zhi-Wei Wang jin Wang Qian-yuan Wu Key Laboratory of Microorganism Application and Risk Control of Shenzhen Guangdong Provincial Engineering Research Center for Urban Water Recycling and Environmental SafetyInstitute of Environment and EcologyShenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055China Shenzhen Environmental Science and New Energy Technology Engineering Laboratory Tsinghua-Berkeley Shenzhen InstituteShenzhen 518055China College of Materials Science and Engineering Shenzhen UniversityShenzhen 518071China

Carbon nitride has been extensively used as a visible-light photocatalyst,but it has the disadvantages of a low specific surface area,rapid electron-hole recombination,and relatively low light *** this study,single-atom Ag was successfully anchored on ultrathin carbon nitride(UTCN)via thermal polymerization,the catalyst obtained is called *** Ag hardly changed the carbon nitride's layered and porous physical *** exhibited efficient visible-light photocatalytic performances in the degradation of various recalcitrant pollutants,eliminations of 85% were achieved by visible-light irradiation for *** with Ag improved the photocatalytic performance of UTCN by narrowing the forbidden band gap from 2.49 to 2.36 e V and suppressing electron-hole pair *** addition,Ag doping facilitated O_(2) adsorption on UTCN by decreasing the adsorption energy from -0.2 to -2.22 e V and favored the formation of O_(2)^(·-).Electron spin resonance and radical-quenching experiments showed that O_(2)^(·-)was the major reactive species in the degradation of Acetaminophen(paracetamol,APAP).

关键词： Ag single atom Carbon nitride Photocatalysis Visible light Adsorption energy Reactive species