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Chinese Chemical Letters 2023年第12期34卷 150-154页

作者： Minxing Du yuxia sun Jiaojiao Zhao Haiyan Hu Liwei sun Yuehui Li State Key Laboratory for Oxo Synthesis and Selective Oxidation Suzhou Research Institute of LICPCenter for Excellence in Molecular SynthesisLanzhou Institute of Chemical Physics(LICP)Chinese Academy of SciencesLanzhou 730000China University of Chinese Academy of Sciences Beijing 100049China

Epoxidation is an important chemical process for the production of epoxides,key building blocks in chemical *** great efforts being made to facilitate this process,it remains a significant challenge to develop cost-effective,environmental-friendly,and selective ***,we reported a highly dispersed Mn supported by g-C_(3)N_(4)(Mn/g-C_(3)N_(4))with Mn loading up to 2.56 wt%.The Mn/g-CN_(4)exhibited satisfied catalytic performance for olefin epoxidation with excellent conversion(91%),high selectivity(93%)as well as outstanding recycling *** analysis revealed the importance of Mn-N structure for the generation of active oxo-containing species and subsequent oxygen atom ***,an efficient synthesis of cyclic carbonates from styrene epoxide and CO_(2)has been achieved(88%conversion,89%selectivity)based on the polar Mn-N coordinated characteristics of Mn/g-C_(3)N_(4)catalyst.

关键词： Well-dispersed Mn catalyst Bifunctional catalyst Epoxidation CO_(2) Cycloaddition

A Dynamic Multi-Attribute Resource Bidding Mechanism with Privacy Protection in Edge Computing

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Computers, Materials & Continua 2023年第4期75卷 373-391页

作者： Shujuan Tian Wenjian Ding Gang Liu yuxia sun Saiqin Long Jiang Zhu Xiangtan University Xiangtan411105China Key Laboratory of Hunan Province for Internet of Things and Information Security Xiangtan411105China Hunan International Scientific and Technological Cooperation Base of Intelligent Network Xiangtan411105China Hunan University Changsha410082China Jinan University Guangzhou510632China

In edge computing,a reasonable edge resource bidding mechanism can enable edge providers and users to obtain benefits in a relatively fair *** maximize such benefits,this paper proposes a dynamic multiattribute resource bidding mechanism(DMRBM).Most of the previous work mainly relies on a third-party agent to exchange information to gain optimal *** isworth noting thatwhen edge providers and users trade with thirdparty agents which are not entirely reliable and trustworthy,their sensitive information is prone to be ***,the privacy protection of edge providers and users must be considered in the dynamic pricing/transaction process,which is also very ***,this paper first adopts a privacy protection algorithm to prevent sensitive information from *** the premise that the sensitive data of both edge providers and users are protected,the prices of providers fluctuate within a certain ***,users can choose appropriate edge providers by the price-performance ratio(PPR)standard and the reward of lower price(LPR)standard according to their *** two standards can be evolved by two evaluation ***,this paper employs an approximate computing method to get an approximate solution of DMRBM in polynomial ***,this paper models the bidding process as a non-cooperative game and obtains the approximate optimal solution based on two standards according to the game *** the extensive experiments,this paper demonstrates that the DMRBM satisfies the individual rationality,budget balance,and privacy protection and it can also increase the task offloading rate and the system benefits.

关键词： Edge computing approximate computing nash equilibrium privacy protection

Recent developments in electrosynthesis of nitriles and electrocatalytic cyanations

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Journal of Energy Chemistry 2022年第7期31卷 542-575,I0014页

作者： Haiyan Hu Shanxuan Wu Fachao Yan Mohamed Makha yuxia sun Chen-Xia Du Yuehui Li State Key Laboratory for Oxo Synthesis and Selective Oxidation Suzhou Research Institute of LICPCenter for Excellence in Molecular SynthesisLanzhou Institute of Chemical Physics(LICP)Chinese Academy of SciencesLanzhou 730000GansuChina University of Chinese Academy of Sciences Zhengzhou 450001HenanChina College of Chemistry Zhengzhou UniversityBeijing 100049China

Nitrile compounds are a class of high-value chemicals and versatile intermediates which can easily be transformed into a variety of useful products bearing functional groups such as carboxyl, carbamoyl, aminomethyl, ketyl and heterocyclic derivatives. Various thermal catalytic cyanation procedures have been devised and scaled up industrially while developing alternative methods are actively pursued. The access to these classes of molecules electrochemically offers greener alternatives to their preparation. The development of electrochemical synthesis of cyano-containing compounds under mild conditions with low energy consumption will imminently become indispensable approaches for industrial production of nitriles. The electrochemical cyanation presents many challenges from the toxicity of cyanide to the development of catalysts and the design of electrochemical cells. Electrochemical cyanation reaction offers promise to conveniently accessing nitriles but still requires efficient electro-catalysts, safe protocols and scale up considerations. This review discusses recent progress in the field of electrochemical synthesis of nitrile compounds placing emphasis on electro-synthetic and electro-catalytic mechanism aspects while making reference to original works to highlight the progress in this area.

关键词： Cyano compounds Nitriles Cyanation Electrosynthesis Electrocatalysis

A Method for Determination of Hexokinase Activity by RP-HPLC

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Wuhan University Journal of Natural Sciences 2011年第6期16卷 535-540页

作者： GUAN yuxia WANG Jing sun Jiaxian College of Biological Science and Technology FuzhouUniversity Fuzhou 350002 Fujian China

A method was established to determine the activity of hexokinase by reverse-phase high-performance liquid chromatography （RP-HPLC）. The activity of hexokinase was determined by detecting the amount of ADP in the reaction that converts glucose into glucose-6-phosphate. The separation degree of ATP and ADP was as good as 3.46 （separation degree^l.5）. In the range of 0.01-0.40 mmol/L, there was a good linear relationship between concentration of ADP and its peak areas （the correlation coefficient was 0.999）. The relative standard deviation（RSD） of intraday was 1.43%-1.46%, that of interday was 2.12%-2.15%. At 30℃ （optimal temperature） and pH7.0 （optimal pH）, the recovery rate of hexokinase was 95.3%-97.6%. The results showed that the method had good precision and high recovery rate, and the enzyme activity was determined through only one-step reaction. To some extent, this method can reduce the cost.

关键词： reverse-phase high-performance liquid chromatog-raphy(RP-HPLC) hexokinase enzyme activity assay

Energy inefficiency diagnosis for Android applications: a literature review

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Frontiers of Computer Science 2023年第1期17卷 35-50页

作者： yuxia sun Jiefeng FANG Yanjia CHEN Yepang LIU Zhao CHEN Song GUO Xinkai CHEN Ziyuan TAN Department of Computer Science Jinan UniversityGuangzhou 510632China Department of Computer Science and Engineering Southern University of Science and TechnologyShenzhen 518055China The Department of Computing Hong Kong Polytechnic UniversityHong Kong 999077China

Android applications are becoming increasingly powerful in recent years. While their functionality is still of paramount importance to users, the energy efficiency of these applications is also gaining more and more attention. Researchers have discovered various types of energy defects in Android applications, which could quickly drain the battery power of mobile devices. Such defects not only cause inconvenience to users, but also frustrate Android developers as diagnosing the energy inefficiency of a software product is a non-trivial task. In this work, we perform a literature review to understand the state of the art of energy inefficiency diagnosis for Android applications. We identified 55 research papers published in recent years and classified existing studies from four different perspectives, including power estimation method, hardware component, types of energy defects, and program analysis approach. We also did a cross-perspective analysis to summarize and compare our studied techniques. We hope that our review can help structure and unify the literature and shed light on future research, as well as drawing developers' attention to build energy-efficient Android applications.

关键词： Android applications energy defects energy inefficiency diagnosis

Implementation of Common Platform for Two-Person Game

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Implementation of Common Platform for Two-Person Game

Comparison of labeling methods and time course of traumatic brain injury-induced cell death in mice

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作者： Hongkun Qiu Fuxiang Gao Yajie Wang Xuxu Song Quan Qiu yuxia sun Engineering Training Center Shenyang Aerospace University Institute of Information Science and Engineering Northeastern University School of Information Science and Engineering Shenyang ligong University

ISBN: (纸本)9781467355339

Computer Games（CG） is considered to be one of the most challenging research directions in the field of artificial intelligence. Though it is one of the most active research areas in recent years, there are less researches about the platform for CG. So some technologies about common platform for two-person game are researched. According to the characteristics of computer game, such as Dots and Boxes, Surakarta, Connect-six and Amazons, an application example was designed by using C/C++ language. The main process were listed as follow: Firstly of all, specified concepts and routines for interface, then defined some important data, included data structures, object classes, variables and functions Secondly introduced the expression of chess board and pieces in the computer. And then created input and output channel for searching engine. So a common platform of two-person player game was implemented. Finally, a series of experimentation were done. And software testing are added in the software development process. The experimentation results proved that this platform is effective for computer game and contributed to reduce subsequent development cost.

关键词： Computer Game Common Platform Search Engine User Interface Input and Output Channel

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Neural Regeneration Research 2010年第9期5卷 706-709页

作者： Chengliang Luo Xiping Chen Hong Ni Qianqian Li Rui Yang yuxia sun Guangyou Zhu Luyang Tao Forensic Key Laboratory of Shanghai Shanghai 200063 China Department of Forensic Medicine Soochow University Suzhou 215123 Jiangsu Province China

BACKGROUND：Various molecular mechanisms of cell death following traumatic brain injury have been previously ***,the time course of cell death remains *** and Fluoro-Jade B labeling have been widely used to label apoptotic cells and neuronal *** iodide （PI） functions as a biomarker of cell death in ***：To explore the role of PI labeling compared to TUNEL and Fluoro-Jade B staining for detecting neural cell death,and to observe time course of traumatic brain injury-induced cell death in ***,TIME AND SETTING：A randomized,controlled,animal experiment was performed at the Laboratory of Aging and Nervous Diseases,Soochow University from September 2007 to December ***：PI （B1221） was purchased from Sigma,*** kit was purchased from Roche Molecular Biochemicals,***-Jade B was purchased from Chemicon,***：A total of 70 healthy,male,Kunming mice were randomly assigned to sham-surgery （n = 5） and model （n = 65） *** brain injury was established using the controlled cortical impact *** was intraperitoneally injected at 1 hour prior to animal *** OUTCOME MEASURES：TUNEL,Fluoro-Jade B,and Pl-positive cells were quantified using a double-labeling method to determine the time course of traumatic brain injury-induced cell ***：PI labeled cells in an earlier phase of cell death than TUNEL and Fluoro-Jade B ***-positive cells were observed immediately following injury,and the numbers rapidly increased in injured brain areas at 1 hour,peaked at 24-48 hours,and subsequently decreased at 3-21 days ***-labeled cells were significantly increased at 12 hours,while Fluoro-Jade B-labeled cells were increased at 6 hours after injury,with cells still visible at 6-48 hours ***,a greater number of Pl-positive cells were observed compared to TUNEL- and Fluoro-Jade B-labeled ***：PI labeling is more sensitive and reliable

关键词： propidium iodide cell death traumatic brain injury neural regeneration

Diagnostic Value of Tumor Markers CA153 and CA125 in Breast Cancer

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Advances in Modern Oncology Research 2020年第3期6卷 20-22页

作者： yuxia sun The First People's Hospital of Zhengzhou City ZhengzhouChina

Objective: To investigate the diagnostic value of CA153 and CA125 combined examination in breast cancer ***: selecting the first people's hospital of Zhengzhou city in April 2018 to April 2019 accepts 60 cases of breast cancerpatients as observation group, at the same time to choose healthy check-up women 60 cases as control group, two groups of all tocarry out the tumor markers CA153, CA125 joint inspection, summarizes the tumor markers CA153, CA125 joint inspection in thesensitivity of diagnosis of breast cancer. Results: There were statistically significant differences in the positive rates of tumor markerCA153 and CA125 combined detection between the two groups (P < 0.05), and the higher the stage of breast adenocarcinoma, thehigher the levels of tumor marker CA153 and CA125. Conclusion: Combined examination of tumor markers CA153 and CA125can reduce the incidence of clinical misdiagnosis of breast cancer.

关键词： Tumor markers CA153 CA125 Breast cancer

Kaisum Village IN THE NEW CENTURY

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China's Tibet 2001年第5期12卷 22-23页

作者： NAMGYI LIU WEI sun yuxia