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Hemorrhagic shock caused by rupture of cystic artery pseudoaneurysm secondary to calculous cholecystitis

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Chinese Medical Journal 2013年第23期126卷 4590-4591页

作者： liang xiao L(U) jie-min MENG Ning JIN Ren-an CAI Xiu-jun Department of General Surgery Sir Run Run Shaw Hospital School of Medicine Zhejiang University Institute of Micro-Invasive Surgery of Zhejiang University Hangzhou Zhejiang 310016 China

Cholecystitis is a common disease in East Asia. Some of the patients developed cystic artery pseudoaneurysm,a rare complication of cholecystitis. Over the past decades, there have been Tess than 20 reports of patients with cystic artery pseudoaneurysm in the literature. Among them, three of the patients had gallbladder perforation which led to hemorrhagic shock,la We report a case of an 88-year-old woman with a cystic artery pseudoaneurysm following an episode of acute cholecystitis.

关键词： cystic artery pesudoaneurysm hemorrhagic shock, cholecystolithiasis

Ethical Dilemma in China's Service-oriented Government Construction and Possible Solutions

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Ethical Dilemma in China's Service-oriented Government Const...

An improved installation of 2-hydroxy-4-methoxybenzyl(iHmb)method for chemical protein synthesis

2006 International Conference on Public Administration

作者： ZHANG Zai-sheng liang xiao-jie School of Public Administration Tianjin University

ISBN: (纸本)7811142686

Building service-oriented government has become a worldwide general course of administrative reforms. After joining the WTO, Chinese governments at all levels keep on exploring possible means and mechanisms to transform into service-oriented government. Construction of a service-oriented government can not only promote the transformation of government functions, improve the administrative efficiency, but also is of extreme importance for China’s merge into the international community as well as for China’s sustainable social and economic development. This paper first discussed the meanings and features of a service-oriented government;then based on these, further analyzed the concepts behind the service-oriented government and present ethical dilemma in practices. Finally, after comparing the international trends with the Chinese realities during nowadays social-economic transformation process, the author tried to put forward some suggestions and solutions to China’s service-oriented government constructions.

关键词： service-oriented government administrative ethics government functions administrative culture

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Chinese Chemical Letters 2024年第5期35卷 145-150页

作者： Ying Li Long-jie Wang Yong-Kang Zhou Jun liang Bin xiao Ji-Shen Zheng The First Affiliated Hospital of USTC MOE Key Laboratory for Membraneless Organelles and Cellular DynamicsDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefei 230001China Department of Chemistry University of Science and Technology of ChinaHefei 230027China

The 2-hydroxy-4-methoxybenzyl(Hmb)backbone modification can prevent amide bond-mediated sidereactions(e.g.,aspartimide formation,peptide aggregation)by installing the removable Hmb group into a peptide bond,thus improving the synthesis of long and challenging peptides and ***,its use is largely precluded by the limited Hmb’s installation *** this report,an improved installation of Hmb(iHmb)method was developed to achieve the flexible installation and the convenient removal of *** iHmb method involves two critical steps:(1)oxidative diazotization of the readily installed 2-hydroxy-4-methoxy-5-amino-benzyl(Hmab)to give 2-hydroxy-4-methoxy-5-diazonium-benzyl(Hmdab)by combining soamyl nitrite(IAN)/HBF_(4),and(2)reductive elimination of Hmdab to give the desired Hmb by 1,2-ethanedithiol(EDT).The iHmb method enables the installation of Hmb at any primary amino acid including the highly sterically hindered amino acids(e.g.,valine and isoleucine).The practicality and utility of the iHmb method was demonstrated by one-shot solid-phase synthesis of a challenging aspartimide-prone peptide,the mirror-image version of a hydrophobic peptide and a long-chain peptide up to ***,the iHmb method can be utilized to facilitate chemical protein ligation,as exemplified by the synthesis of the single-spanning membrane protein *** iHmb method expands the toolkit for peptide synthesis and ligation and facilitates the preparation of peptides/proteins.

关键词： Chemical protein synthesis Solid-phase peptide synthesis Removable backbone modification 2-Hydroxy-4-methoxybenzyl(Hmb)group Aspartimide-prone peptides Difficult peptides Membrane proteins

A visual modeling method for spatiotemporal and multidimensional features in epidemiological analysis:Applied COVID-19 aggregated datasets

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Computational Visual Media 2024年第1期10卷 161-186页

作者： Yu Dong Christy jie liang Yi Chen jie Hua School of Computer Science University of Technology SydneySydneyNSW2007Australia Beijing Key Laboratory of Big Data Technology for Food Safety Beijing Technology and Business UniversityBeijing100048China

The visual modeling method enables flexible interactions with rich graphical depictions of data and supports the exploration of the complexities of epidemiological ***,most epidemiology visualizations do not support the combined analysis of objective factors that might influence the transmission situation,resulting in a lack of quantitative and qualitative *** address this issue,we developed a portrait-based visual modeling method called+*** method considers the spatiotemporal features of virus transmission patterns and multidimensional features of objective risk factors in communities,enabling portrait-based exploration and comparison in epidemiological *** applied+msRNAer to aggregate COVID-19-related datasets in New South Wales,Australia,combining COVID-19 case number trends,geo-information,intervention events,and expert-supervised risk factors extracted from local government area-based *** perfected the+msRNAer workflow with collaborative views and evaluated its feasibility,effectiveness,and usefulness through one user study and three subject-driven case *** feedback from experts indicates that+msRNAer provides a general understanding for analyzing comprehension that not only compares relationships between cases in time-varying and risk factors through portraits but also supports navigation in fundamental geographical,timeline,and other factor *** adopting interactions,experts discovered functional and practical implications for potential patterns of long-standing community factors regarding the vulnerability faced by the *** confirmed that+msRNAer is expected to deliver visual modeling benefits with spatiotemporal and multidimensional features in other epidemiological analysis scenarios.

关键词： visual modeling epidemiological analysis spatiotemporal multidimensional COVID-19

Decentralized Optimal Control and Stabilization of Interconnected Systems With Asymmetric Information

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IEEE/CAA Journal of Automatica Sinica 2024年第3期11卷 698-707页

作者： Na Wang xiao liang Hongdan Li xiao Lu the College of Electrical Engineering and Automation Shandong University of Science and TechnologyQingdao 266000China the School of Automation and Electrical Engineering Linyi UniversityLinyi 276000China the College of Energy Storage Technology Shandong University of Science and TechnologyQingdao 266000China

The paper addresses the decentralized optimal control and stabilization problems for interconnected systems subject to asymmetric *** with previous work,a closed-loop optimal solution to the control problem and sufficient and necessary conditions for the stabilization problem of the interconnected systems are given for the first *** main challenge lies in three aspects:Firstly,the asymmetric information results in coupling between control and estimation and failure of the separation ***,two extra unknown variables are generated by asymmetric information(different information filtration)when solving forward-backward stochastic difference ***,the existence of additive noise makes the study of mean-square boundedness an *** adopted technique is proving and assuming the linear form of controllers and establishing the equivalence between the two systems with and without additive noise.A dual-motor parallel drive system is presented to demonstrate the validity of the proposed algorithm.

关键词： Asymmetric information decentralized control forwardbackward stochastic difference equations interconnected system stalibization

A compact route for efficient production of high-purity β-Ga2O3 powder

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Rare Metals 2024年第9期43卷 4573-4584页

作者： xiao-Wei Zhou Gao-jie Chen liang Xu Zhi-Jun Shao Cheng Yang Yong-Pan Tian Zhuo Zhao School of Metallurgical Engineering Anhui University of Technology Low-Carbon Research Institute Anhui University of Technology

The present study has proposed a compact process for the production of high-purity β-Ga2O3powder by simply using gallium metal and water as the raw materials. The process basically consists of two essential steps including hydrothermal synthesis of Ga OOH and calcination of Ga OOH for the production of the target product of β-Ga2O3. Thermodynamic evaluation and systematic experiments were conducted for process parameter optimization. X-ray diffractometer（XRD）, scanning electron microscopy（SEM）, thermogravimetryDdifferential scanning calorimetry（TG-DSC） and X-ray photoelectron spectroscopy（XPS） were utilized to clarify the reaction mechanisms of the hydrothermal synthesis and transformation of Ga OOH to β-Ga2O3by calcination. Chemical analysis of the final product of β-Ga2O3obtained under the optimal conditions was carried out with inductively coupled plasma mass spectrometry（ICP-MS）, and the results showed that the contents of the representative impurities such as Ni, Cu, In, Mn, Co, Zn and Cr are obviously lower than the requirement of 5N β-Ga2O3standard, exhibiting excellent application prospect of the proposed process to produce high-purity β-Ga2O3.

关键词： Calcination Hydrothermal synthesis Purity Reaction mechanism β-Ga2O3

Cross-linked Electrospun Gel Polymer Electrolytes for Lithium-Ion Batteries

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Chinese Journal of Polymer Science 2024年第8期42卷 1021-1028页

作者： Xue Gong Qin xiao Qing-Yin Li Wen-Cui liang Feng Chen Long-Yu Li Shi-jie Ren College of Polymer Science and Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065China

Lithium-ion batteries(LIBs)benefit from an effective electrolyte system design in both terms of their safety and energy storage ***,a series of precursor membranes with high porosity were produced using electrospinning technology by mixing PVDF and triblock copolymer(PS-PEO-PS),resulting in a porous structure with good interconnections,which facilitates the absorbency of a large amount of electrolyte and further increases the ionic conductivity of gel polymer electrolytes(GPEs).It has been demonstrated that post-cross-linking of the precursor membranes increa ses the rigidity of the nanofibers,which allows the polymer film to be dimensionally sta ble up to 260℃while maintaining superior electrochemical *** obtained cross-linked GPEs(CGPEs)showed high ionic conductivity up to 4.53×10^(-3)S·cm^(-1).With the CGPE-25,the assembled Li/LiFeP04 half cells exhibited good rate capability and maintained a capacity of 99.4%and a coulombic efficiency of99.3%at 0.1 *** results suggest that the combination of electrospinning technique and post-cross-linking is an effective method to construct polymer electrolytes with high thermal stability and steadily decent electrochemical performance,particularly useful for Lithium-ion battery applications that require high-temperature usage.

关键词： Electrospinning Cross-linked Gel polymer electrolytes Lithium-ion batteries

含氨基酸侧链的两性聚合物P(εACRLLY-co-AM)的合成和性能表征

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高校化学工程学报 2015年第2期29卷 328-334页

作者：陈鹏梁小杰梁兵高分子材料工程国家重点实验室四川大学四川成都610065

利用L-赖氨酸上的ε氨基与丙烯酰氯反应,合成了一种包含完整氨基酸单元的两性单体(εACRLLY),并用1H-NMR、FT-IR、元素分析对该单体进行了表征;将该单体与丙烯酰胺共聚制备了一种具有完整氨基酸侧链的p H敏感的两性聚合物P(εACRLLY-co-... 详细信息

利用L-赖氨酸上的ε氨基与丙烯酰氯反应,合成了一种包含完整氨基酸单元的两性单体(εACRLLY),并用1H-NMR、FT-IR、元素分析对该单体进行了表征;将该单体与丙烯酰胺共聚制备了一种具有完整氨基酸侧链的p H敏感的两性聚合物P(εACRLLY-co-AM)。通过研究聚合物溶液表观黏度与p H值、外加盐浓度间的关系,聚合物在溶液中的流体力学直径与溶液p H值间的关系,发现该聚合物表现出显著的p H敏感性,具有明显的两性特征和反聚电解质效应,聚合物的等电点为p H 6.2;聚合物中氨基和羧基在不同p H值下具有不同的电离状态是造成这一性能变化的主要原因。

关键词：丙烯酰胺 L-赖氨酸 p H敏感两性

Precisely modulating covalent and coordination bonds in the porous network for highly selective metal ion extraction

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Science China Chemistry 2024年第4期67卷 1039-1040页

作者： jie Li xiao Feng Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster ScienceMinistry of EducationAdvanced Technology Research Institute(Jinan)Frontiers Science Center for High Energy MaterialSchool of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing 100081China

Scandium(Sc)is recognized as a“strategic”and“critical”element by several countries,including the *** Russia,owing to its wide range of applications in high-tech fields such as superconductivity,alloys,lasers,nucle... 详细信息

关键词： alloys coordination network