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Resistive switching memory for high density storage and computing

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Chinese Physics B 2021年第5期30卷 26-51页

作者： xiao-xin xu Qing Luo Tian-Cheng Gong Hang-Bing Lv Qi Liu Ming Liu Key Laboratory of Microelectronics Devices and Integrated Technology Institute of Microelectronics of the Chinese Academy of SciencesBeijing 100029China

The resistive random access memory(RRAM)has stimulated a variety of promising applications including programmable analog circuit,massive data storage,neuromorphic computing,*** new emerging applications have huge demands on high integration density and low power *** cross-point configuration or passive array,which offers the smallest footprint of cell size and feasible capability of multi-layer stacking,has received broad attention from the research *** such array,correct operation of reading and writing on a cell relies on effective elimination of the sneaking current coming from the neighboring *** target requires nonlinear I-V characteristics of the memory cell,which can be realized by either adding separate selector or developing implicit build-in nonlinear *** performance of a passive array largely depends on the cell nonlinearity,reliability,on/off ratio,line resistance,thermal coupling,*** article provides a comprehensive review on the progress achieved concerning 3D RRAM ***,the authors start with a brief overview of the associative problems in passive array and the category of 3D ***,the state of the arts on the development of various selector devices and self-selective cells are *** parameters that influence the device nonlinearity and current density are outlined according to the corresponding working ***,the reliability issues in 3D array are summarized in terms of uniformity,endurance,retention,and ***,scaling issue and thermal crosstalk in 3D memory array are thoroughly discussed,and applications of 3D RRAM beyond storage,such as neuromorphic computing and CMOL circuit are discussed *** and outlooks are given in the final.

关键词： resistive switching memory(RRAM) three-dimensional(3D)integration reliability computing

Preparation and Evaluation of Novel Solid Chlorine Dioxide-based Disinfectant Powder in Single-pack

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Biomedical and Environmental Sciences 2008年第2期21卷 157-162页

作者： MIN ZHU LI-SHI ZHANG xiao-FANG PEI xin xu Huaxi School of Public Health Sichuan University Chengdu 610041 Sichuan China

Objective To prepare and evaluate novel chlorine dioxide-based disinfectant powder in single-pack that is more convenient for use and transportation. Methods Orthogonal experiment was performed to determine the recipe of the disinfectant powder. Stability test, suspension quantitative bactericidal test, simulation field triM, and animal toxicity test were carded out to observe its bactericidal and toxicological effects. Results The orthogonal experiment showed that the type of water solution had no effect on the disinfectant powder and the best ratio of sodium chlorite to solid acid was 1：3. Ten grams of the disinfectant powder was fully dissolved in 20 mL water for 2 min, and diluted to 500 mL in water. After 5-10 min, the concentration of chlorine dioxide （CIO2） solution was 266 mg/L to 276 mg/L. After stored at 54℃ for 14 d, the average concentration of CIO2 was decreased by 5.03%. Suspension quantitative bactericidal test showed that the average killing logarithm （KL） value for both Staphylococcus aureus and Escherichia coli in 100 mg/L CIO2 solution for 2 min was over 5.00. In simulation field triM, the average descending KL value for Escherichia coli in the solution containing 100 mg/L CIO2 for 5 min was over 3.00. The mouse acute LD50 in the solution 5 times exceeded 5000 mg/kg. The disinfectant powder was not toxic and irritative to rabbit skin and had no mutagenic effect on mouse marrow polychromatic erythrocytes （PCE）. Conclusion The stability and bactericidal efficacy of solid chlorine dioxide-based disinfectant powder in single-pack are good. The solution containing 100 mg/L CIO2 can kill vegetative forms of bacteria. The concentration of CIO2 on the disinfecting surface of objects is 100 mg/L. The disinfectant powder is not toxic and irritative.

关键词： Chlorine dioxide Disinfectant powder Single-pack

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关于非线性浅水波理论中的孤立波解

水动力学研究与进展（A辑） 1992年第1期7卷 13-19页

作者：忻孝康许澄复旦大学应用力学系上海200433

本文在[1]的基础上,详尽地得到了Boussinesq方程和KdV方程的孤立波解,并对波高和波形进行了细致的分析。为了更好地比较,本文还给出了高阶摄动的孤立波解。

关键词：浅水波孤立波 KdV方程非线性

Increased excitatory amino acid transporter 2 levels in basolateral amygdala astrocytes mediate chronic stress–induced anxiety-like behavior

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Neural Regeneration Research 2025年第6期20卷 1721-1734页

作者： Xirong xu Shoumin xuan Shuai Chen Dan Liu Qian xiao Jie Tu Shenzhen Key Laboratory of Neuroimmunomodulation for Neurological Diseases Shenzhen-Hong Kong Institute of Brain ScienceShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong ProvinceChina CAS Key Laboratory of Brain Connectome and Manipulation Brain Cognition and Brain Disease Institute(BCBDI)Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong ProvinceChina Guangdong Provincial Key Laboratory of Brain Connectome and Behavior the Brain Cognition and Brain Disease Institute(BCBDI)Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong ProvinceChina University of Chinese of Academy of Sciences BeijingChina Faculty of Life and Health Sciences Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong ProvinceChina

The conventional perception of astrocytes as mere supportive cells within the brain has recently been called into question by empirical evidence, which has revealed their active involvement in regulating brain function and encoding behaviors associated with ***, astrocytes in the basolateral amygdala have been found to play a role in the modulation of anxiety-like behaviors triggered by chronic stress. Nevertheless, the precise molecular mechanisms by which basolateral amygdala astrocytes regulate chronic stress–induced anxiety-like behaviors remain to be fully elucidated. In this study, we found that in a mouse model of anxiety triggered by unpredictable chronic mild stress, the expression of excitatory amino acid transporter 2 was upregulated in the basolateral amygdala. Interestingly, our findings indicate that the targeted knockdown of excitatory amino acid transporter 2 specifically within the basolateral amygdala astrocytes was able to rescue the anxiety-like behavior in mice subjected to stress. Furthermore, we found that the overexpression of excitatory amino acid transporter 2 in the basolateral amygdala, whether achieved through intracranial administration of excitatory amino acid transporter 2agonists or through injection of excitatory amino acid transporter 2-overexpressing viruses with GfaABC1D promoters, evoked anxiety-like behavior in mice. Our single-nucleus RNA sequencing analysis further confirmed that chronic stress induced an upregulation of excitatory amino acid transporter 2 specifically in astrocytes in the basolateral amygdala. Moreover, through in vivo calcium signal recordings, we found that the frequency of calcium activity in the basolateral amygdala of mice subjected to chronic stress was higher compared with normal *** knocking down the expression of excitatory amino acid transporter 2 in the basolateral amygdala, the frequency of calcium activity was not significantly increased, and anxiety-like behavior was ob

关键词： anxiety astrocytes basolateral amygdala behavior dihydrokainic acid excitatory amino acid transporter 2 fiber photometry glutamate LDN-212320 transporter

基于游客评价视角的浙中城市群旅游竞争力分析

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特区经济 2016年第3期 135-138页

作者：肖绪信义乌工商职业技术学院浙江义乌322000

随着工业化和城市化进程的加快,城市群已成为区域旅游业发展的重要载体。本文在构建城市群旅游竞争力评价体系的基础上,从游客评价视角对浙中城市群旅游竞争力影响因素进行分析,找出哪些是需"继续保持"的,哪些是需要"控制优化"的,哪些属... 详细信息

随着工业化和城市化进程的加快,城市群已成为区域旅游业发展的重要载体。本文在构建城市群旅游竞争力评价体系的基础上,从游客评价视角对浙中城市群旅游竞争力影响因素进行分析,找出哪些是需"继续保持"的,哪些是需要"控制优化"的,哪些属于"低优先级",哪些是需要"重点改进"的,为浙中城市群旅游业发展资源优化配置提供理论支持。

关键词：游客评价 IPA分析旅游竞争力浙中城市群

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乡村全域旅游发展策略

安徽农业科学 2021年第14期49卷 134-136,139页

作者：肖绪信义乌工商职业技术学院人文旅游学院浙江义乌322000

当前全域旅游备受学界和政府推崇,然而实际效果并不十分理想。从梳理全域旅游的核心要义入手,总结全域旅游在实践领域中遇到的困境,提出乡村是较之城市更适合全域旅游发展的背景空间,并从乡村发展全域旅游的优势和可采取的策略两方面进... 详细信息

当前全域旅游备受学界和政府推崇,然而实际效果并不十分理想。从梳理全域旅游的核心要义入手,总结全域旅游在实践领域中遇到的困境,提出乡村是较之城市更适合全域旅游发展的背景空间,并从乡村发展全域旅游的优势和可采取的策略两方面进行论证。

关键词：全域旅游乡村优势实践困境发展策略

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国内近十年非物质文化遗产旅游开发研究综述

特区经济 2017年第3期 110-113页

作者：肖绪信义乌工商职业技术学院浙江义乌322000

非物质文化遗产的旅游开发是近几年非遗研究和旅游研究的热点之一。通过对2006年以来有关文献的梳理,从要不要开发非遗、如何开发非遗、开发非遗有何影响及如何面对等三个方面进行梳理,并探讨现有研究的不足之处和今后应加强的方面。

关键词：非物质文化遗产旅游开发研究综述国内

高职“旅游资源评价与开发”课程项目化教学改革探究

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江苏商论 2017年第10期 63-67页

作者：肖绪信义乌工商学院人文旅游学院浙江义乌322000

旅游资源评价与开发是高职旅游类专业的基础技能课程,其复杂性、边缘性及综合性是该课程的特征。结合多年教学经验,在分析对该课程进行项目化教学改革必要性的基础上,阐明进行项目化教学改革的方向和内容,并总结课程项目化教学改革实践... 详细信息

旅游资源评价与开发是高职旅游类专业的基础技能课程,其复杂性、边缘性及综合性是该课程的特征。结合多年教学经验,在分析对该课程进行项目化教学改革必要性的基础上,阐明进行项目化教学改革的方向和内容,并总结课程项目化教学改革实践成果,以期为后续研究提供参考。

关键词：旅游资源评价与开发课程项目化教学改革

Photoinduced radical sulfur dioxide insertion with asymmetric cyclization of alkenes: accessing β-chiral sulfones bearing S-stereocentric cyclic sulfinamides

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Science China Chemistry 2025年第01期 257-263页

作者： Jiapian Huang Chenxin Wang xu Wang xiaoyu Zhou Wei xiao Jie Wu School of Pharmaceutical and Chemical Engineering & Institute for Advanced Studies Taizhou University State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences School of Chemistry and Chemical Engineering Henan Normal University

The generation of various β-chiral sulfones bearing chiral cyclic sulfinamides through photoredox-catalyzed sulfur dioxide insertion with asymmetric radical cyclization is described. This method features a broad substrate scope and excellent stereospecificity. Computational studies reveal that the dispersion interaction between sulfinyl group and CH2SO2Ph group plays a crucial role in the stereoselectivity control.

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