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Design of new format for mass data compression

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The Journal of China Universities of Posts and Telecommunications 2011年第1期18卷 121-128页

作者： QIN Jian-cheng bai Zhong-ying School of Computer Science Beijing University of Posts and Telecommunications Beijing 100876 China

In the field of lossless compression, most kinds of traditional software have some shortages when they face the mass data. Their compressing abilities are limited by the data window size and the compressing format design. This paper presents a new design of compressing format named ＇CZ format＇ which supports the data window size up to 4 GB and has some advantages in the mass data compression. Using this format, a compressing shareware named ＇ComZip＇ is designed. The experiment results support that ComZip has better compression ratio than WinZip, Bzip2 and are compressed. And ComZip has the potential to beat 7-zip in WinRAR in most cases, especially when GBs or TBs of mass data future as the data window size exceeds 128 MB.

关键词： mass data coding tossless compression LZ77/LZSS algorithm arithmetic coding

基于遗产价值的潮汕地区三山国王庙建筑空间特征探析

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古建园林技术 2024年第2期 7-13页

作者：白颖唐孝祥冯楠华南理工大学建筑学院亚热带建筑与城市科学全国重点实验室

潮汕地区三山国王庙遗存众多,保存完整,极具地方特色,是潮汕地区建筑遗产保护的具体物质空间。潮汕三山国王庙在满足信仰祭祀功能需求的同时,深刻体现了地域环境、地方风俗及民众日常情感等地方特色。本文基于文献研究及实地调研考察,... 详细信息

潮汕地区三山国王庙遗存众多,保存完整,极具地方特色,是潮汕地区建筑遗产保护的具体物质空间。潮汕三山国王庙在满足信仰祭祀功能需求的同时,深刻体现了地域环境、地方风俗及民众日常情感等地方特色。本文基于文献研究及实地调研考察,从空间形态、空间构造、空间装饰等方面对三山国王庙空间特征展开研究,通过对其选址、布局、大木构架及装饰等特征及价值要素梳理归纳,进一步解读了潮汕三山国王庙空间中蕴含的的自然地理人文的融合适应、营建智慧的具体呈现,以及对中原传统文化的地方化延续等遗产价值,为三山国王庙建筑遗产的传承保护与开发利用提供了理论指导。

关键词：遗产价值价值要素空间特征潮汕三山国王庙

沿海中小河流域地表-地下水库联合调控洪水资源利用研究:Ⅰ.方法与模型

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水资源保护 2024年第1期40卷 79-85,126页

作者：王坤王宗志白莹刘群程亮杜慧华刘克琳丁启南京水利科学研究院水文水资源与水利工程科学国家重点实验室江苏南京210029 山东省水文中心山东济南250002

针对沿海中小河流域地表-地下水库复杂工程系统,因缺少联合调控方法而导致洪水资源利用难的问题,解析地表-地下水库系统结构与功能,定量模拟地表水库调度、闸坝调控下河流和地下水动力过程,并利用智能替代模型提升水动力过程计算速度;... 详细信息

针对沿海中小河流域地表-地下水库复杂工程系统,因缺少联合调控方法而导致洪水资源利用难的问题,解析地表-地下水库系统结构与功能,定量模拟地表水库调度、闸坝调控下河流和地下水动力过程,并利用智能替代模型提升水动力过程计算速度;在此基础上通过研发时/日/月多时间尺度模型耦合嵌套方法,构建了兼顾计算精度与效率的地表-地下水库联合调控模型。该模型实现了洪水、地表-地下水相互作用和供水等时间尺度差异明显的调节过程的统一调配,可为沿海中小河流域洪水资源利用提供新思路与技术支撑。

关键词：洪水资源利用地表-地下水库系统联合调控多时间尺度嵌套模型沿海中小河流域

Toward better electrode/electrolyte interfaces in the ionic-liquid-based rechargeable aluminum batteries

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Journal of Energy Chemistry 2020年第6期29卷 98-102,I0004页

作者： Haoyi Yang Feng Wu ying bai Chuan Wu Beijing Key Laboratory of Environmental Science and Engineering and School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing 100081China Collaborative Innovation Center of Electric Vehicles in Beijing Beijing 100081China

The past decade has witnessed the germination of rechargeable aluminum batteries(RABs)with the colossal potential to enact as a device for the large scale energy storage and *** Majority of investigations are dedicated to the exploration of suitable cathode materials,while less is known about the electrode/electrolyte interfaces that determine the electrochemistry of *** this perspective,we will highlight the significance of electrode/electrolyte interface for RABs,in overall kinetics and capacity *** will be laid on the complicated yet basic understandings of the phenomena at the interfaces,including the dendrite growth,surface Al2O3 and solid–electrolyte-interphase(SEI).And we will summarize the reported practice in effort to build better electrode/electrolyte interfaces in *** the end,outlook regarding to the challenges,opportunities and directions is presented.

关键词： Electrochemistry Interface Rechargeable aluminum battery

基于H_(2)O_(2)-丁基玫瑰红B-Fe^(2+)体系的荧光猝灭法测定血清过氧化氢酶的活性

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理化检验（化学分册） 2024年第1期60卷 97-100页

作者：蒲文静白莹董娜张爱菊张小林甘肃医学院平凉744000

利用H_(2)O_(2)-Fe^(2+)可以快速使丁基玫瑰红B(BRMB)发生荧光猝灭,而过氧化氢酶(CAT)对该猝灭有抑制效应,提出了基于H_(2)O_(2)-BRMB-Fe^(2+)体系的荧光猝灭法测定血清CAT活性的方法。取血清样品10μL,加入1 mmol·L^(-1)H_(2)O_(2)底... 详细信息

利用H_(2)O_(2)-Fe^(2+)可以快速使丁基玫瑰红B(BRMB)发生荧光猝灭,而过氧化氢酶(CAT)对该猝灭有抑制效应,提出了基于H_(2)O_(2)-BRMB-Fe^(2+)体系的荧光猝灭法测定血清CAT活性的方法。取血清样品10μL,加入1 mmol·L^(-1)H_(2)O_(2)底液0.50 mL,于30℃恒温反应15 min,再依次加入0.02 mmol·L^(-1)BRMB溶液0.70 mL、0.1 mol·L^(-1)冰乙酸-乙酸钠缓冲液(pH 4.2)1.00 mL和0.01 mol·L^(-1)Fe^(2+)溶液0.08 mL,于室温反应20 min后用水定容至10 mL,测定体系在590 nm发射波长处的荧光强度F;以煮死酶液为对照,按照同样的方法测定其在590 nm发射波长处的荧光强度F0。结果表明:CAT活性在0.005~0.05 U·mL^(-1)内与体系荧光强度差值F-F0呈线性关系,检出限(3s/k)为1.2×10^(-3)U·mL^(-1);方法用于6份不同年龄健康人群血清CAT活性分析,测定值为31.50~72.30 U·mL^(-1),与碘量法基本一致,CAT活性的加标回收率为95.2%~102%,测定值的相对标准偏差(n=6)为1.7%~3.3%。

关键词：过氧化氢酶活性 H_(2)O_(2) 丁基玫瑰红B 荧光

Sulfone-based high-voltage electrolytes for high energy density rechargeable lithium batteries:Progress and perspective

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Chinese Chemical Letters 2021年第4期32卷 1309-1315页

作者： Wenya Wu ying bai Xinran Wang Chuan Wu Beijing Key Laboratory of Environmental Science and Engineering School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing 100081China

Further enhancement in the energy density of rechargeable lithium batteries calls for high-voltage cathode materials and stable anodes,as well as matched high-voltage electrolytes without compromising the overall property of ***-based electrolytes have aroused great interest in recent years owing to their wide electrochemical window and high ***,significant challenges such as the complexity of synthesis,high melting point(typically above room temperature),high viscosity,and their poor compatibility with graphite-based anodes have drastically impeded their practical *** this review,recent progress of sulfone solvents in high energy density rechargeable lithium batteries is summarized theoretically and *** importantly,general improvement methods of sulfone-based electrolytes,such as adding additives and cosolvents,structural modifications of sulfo ne,superconcentrated salt strategy are briefly *** expect that this review provides inspiration for the future developments of sulfone-based high-voltage electrolytes(SHVEs)and their widespread applications in high specific energy lithium batteries.

关键词： Lithium batteries High voltage High energy density Sulfone-based electrolytes Optimizations

High-Voltage Layered Ternary Oxide Cathode Materials:Failure Mechanisms and Modification Methods

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Chinese Journal of Chemistry 2020年第12期38卷 1847-1869页

作者： Xiaodan Wang ying bai Xinran Wang Chuan Wu Beijing Key Laboratory of Environmental Science and Engineering School of Materials Science&EngineeringBeijing Institute of TechnologyNo.5 South Zhongguancun StreetBeijing 100081China Collaborative Innovation Center of Electric Vehicles in Beijing Beijing 100081China

Due to the large reversible capacity,high operating voltage and low cost,layered ternaryoxide cathode materials LiNixCoyAl-x-yO2(NCA)and LiNixCoyMn1-x-yO2(NCM)are considered asthe most potential candidate materials for lithium-ion batteries(LIBs)used in(hybrid)electricvehicles(EVs).However,next-generation long-range EVs require a high specific capacity(around 203 mAh·g^-1at 3.7V)at the cathode active material level,which is not provided withcurrent commercially layered ternary oxide *** the operating voltage is aneffective method to improve the specific capacity of the cathode and the energy density of the battery,but the high operating voltage also causes a lot of problems,such as cation mix-ing and phase transformation,electrolyte decomposition,transition metal dissolution *** far,researchers have carried out a lot of works to solve these ***,element doping and the design of electrolytes have been proved to be effective *** this review,the failure mechanisms and modification methods of high-voltage lay-ered ternary oxide cathode materials are summarized,which could provide valuable infor-mation to the research of high-voltage layered ternary oxide cathode materials in basic sci-ence and industrial production.

关键词： coating Ternary battery

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新时代高校劳动教育与思政教育融合发展探析

延安大学学报（社会科学版） 2024年第2期46卷 111-116页

作者：李军靠白秋颖延安大学教育科学学院陕西延安716000

劳动教育与思政教育是新时代高校落实立德树人根本任务的有力抓手。因二者在培养目标、内容、途径等方面存在着深层次的内在逻辑联系,所以越来越多的高校认识到劳动教育与思政教育融合发展的必要性,并逐步开展了双育融合育人工作。然而... 详细信息

劳动教育与思政教育是新时代高校落实立德树人根本任务的有力抓手。因二者在培养目标、内容、途径等方面存在着深层次的内在逻辑联系,所以越来越多的高校认识到劳动教育与思政教育融合发展的必要性,并逐步开展了双育融合育人工作。然而,不少高校因受双育融合发展理念偏颇、专业师资不足、机制构建虚化、平台建设滞后等因素制约,还存在着对双育融合发展重视不够、融合程度不深入、融合方式较简单等问题。对此,高校应通过加大宣传力度、优化师资队伍、构建多元机制、加快平台建设等对策来提升双育融合发展成效。

关键词：高校劳动教育思政教育双育融合融合发展

Insight to defects regulation on sugarcane waste-derived hard carbon anode for sodium-ion batteries

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Journal of Energy Chemistry 2021年第4期30卷 499-508页

作者： Kaihua Yu Xinran Wang Haoyi Yang ying bai Chuan Wu Beijing Key Laboratory of Environmental Science and Engineering School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing 100081China Collaborative Innovation Center of Electric Vehicles in Beijing Beijing 100081China

A great deal of attention has been paid on developing plant-derived hard carbon(HC)materials as anodes for sodium-ion batteries(SIBs).So far,the regulation of HC has been handicapped by the well-known ambiguity of Na^(+)storage mechanism,which fails to differentiate the Na^(+)adsorption and Na^(+)insertion,and their relationship with the size of d-interlayer spacing and structural ***,bagassederived HC materials have been synthesized through a combination of pyrolysis treatment and microwave *** combined protocol has enabled to synergistically control the d-interlayer spacing and ***,the microwave activation has created slit pores into HC and these pores allow for an enhanced Na^(+)adsorption with an increased sloping capacity,establishing a strong correlation between the porosity and sloping ***,the pyrolysis treatment promotes the graphitization and it contributes to an intensified Na^(+)insertion with an increased plateau capacity,proving that the plateau capacity is largely contributed by the Na^(+)insertion between ***,the structural regulation of bagasse-derived HC has provided a proof on positively explaining the Na^(+)storage with HC *** structural changes in the pore size distribution,specific surface area,d-interlayer spacing,and the electrochemical properties have been comprehensively characterized,all supporting our understanding of Na^(+)storage *** a result,the HC sample with an optimized d-interlayer spacing and porosity has delivered an improved reversible capacity of 323.6 m Ah g^(-1) at 50 m A g^(-1).This work provides an understanding of Na^(+)storage mechanism and insights on enhancing the sloping/plateau capacity by rationally regulating the graphitization and porosity of HC materials for advanced SIBs.

关键词： Hard carbon Sodium-ion batteries Microwave activation Sodium storage mechanism