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Rare Metals 2022年第10期41卷 3301-3321页

作者： Fei Yuan Ya-Chuan Shao Bo Wang Yu-Sheng Wu Di Zhang zhao-jin li Yi-min A.Wu School of Materials Science and Engineering Shenyang University of TechnologyShenyang110870China Hebei Key Laboratory of Flexible Functional Materials School of Materials Science and EngineeringHebei University of Science and TechnologyShijiazhuang050000China Department of Mechanical and Mechatronics Engineering and Waterloo Institute of NanotechnologyUniversity of WaterlooWaterlooONN2L 3G1Canada

Potassium-ion batteries(KIBs)are regarded as one of the most promising replacements for lithium-ion batteries because of their low cost and high performance.Exploring suitable anode materials to stably and effectively store potassium is critical for the development of KIBs.Given their high theoretical specific capacity,cobalt-based compounds have been extensively investigated as an anode material in recent years;however,specific reviews summarizing the research progress in the application of cobaltbased compounds as anode materials for high-performance KIBs are lacking.Consequently,this review systematically summarizes the recent states of cobalt-based anode materials in KIBs starting at the potassium storage mechanism,followed by strategies and applications to improve the electrochemical performance.The current challenges are also discussed,and corresponding prospects are proposed.This work may facilitate the realization of various applications of cobalt-based compound anodes for highperformance rechargeable batteries and is expected to provide some guidance for developing other metal-based compounds for KIBs anodes.

关键词： Cobalt-based material Anode Potassium-ion battery(KIBs) Electrochemical performance

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太平天国侍王府壁画制作材料的光谱学分析

光谱学与光谱分析 2024年第2期44卷 452-459页

作者：水碧纹孙满利于宗仁王卓赵金丽崔强西北大学文化遗产学院文化遗产研究与保护技术教育部重点实验室陕西西安710069 中国-中亚人类与环境“一带一路”联合实验室陕西西安710069 敦煌研究院国家古代壁画与土遗址保护工程技术研究中心甘肃敦煌736200

金华侍王府壁画是我国南方殿堂壁画的典型代表,也是太平天国时期保存最完整、绘画最多的壁画遗存。由于地处南方潮湿地区,侍王府壁画在环境因素的影响下,出现了多种病害,保存状况不容乐观。为了保护好这一重要壁画遗存,需要对壁画的制... 详细信息

金华侍王府壁画是我国南方殿堂壁画的典型代表,也是太平天国时期保存最完整、绘画最多的壁画遗存。由于地处南方潮湿地区,侍王府壁画在环境因素的影响下,出现了多种病害,保存状况不容乐观。为了保护好这一重要壁画遗存,需要对壁画的制作材料进行科学研究。利用手持式X射线荧光光谱仪(pXRF)和便携式拉曼光谱仪(Raman)在现场开展原位无损分析,初步查明壁画红色颜料使用了朱砂(HgS)和铁红(Fe_(2)O_(3)),白色颜料主要为方解石(CaCO_(3)),其他颜料受分析条件的限制,未能检测出显色成分。通过微损取样获得颜料样品和地仗样品若干,在实验室利用显微红外光谱(μ-FTIR)、X射线衍射(XRD)、显微拉曼光谱(μ-Raman)、热裂解气相色谱质谱联用(Py-GC/MS)等光谱分析技术对蓝绿色颜料、地仗成分、胶结材料类型、纤维种类等开展分析研究,结果表明:蓝色颜料为乾隆中后期传入中国并大量使用的第一个现代合成颜料普鲁士蓝(Fe_(4)[Fe(CN)_(6)]_(3)),绿色颜料有三种,包括人造氯铜矿[Cu_(2)Cl(OH)_(3)],巴黎绿颜料的变色产物氯砷钠铜石[NaCaCu_(5)(AsO_(4))_(4)Cl·5H_(2)O],还有首次在我国发现的锥绿铅铜矿[Pb_(21)Cu_(2)0Cl_(42)(OH)_(40)·6H_(2)O],但目前的研究还未见锥绿铅铜矿作为颜料使用的案例,我国境内也未见此类矿物的报道,认为侍王府壁画中发现的锥绿铅铜矿是其他含铜颜料变色的产物。Py-GC/MS研究结果表明,侍王府壁画颜料层中存在脯氨酸和羟脯氨酸,这是动物胶的主要成分,故侍王府壁画胶结材料使用了动物胶。通过计算壁画泥质地仗和石灰地仗样品中纤维的红外光谱特征峰比值R1(I_(1595)/I_(1105))和R^(2)(I_(1595)/I_(2900)),得出壁画泥质地仗中的纤维为苎麻纤维,石灰地仗中的纤维为棉花纤维。该研究为太平天国侍王府壁画颜料鉴定、修复材料选择及保护提供了科学依据。

关键词：光谱分析壁画颜料纤维

教育数字化转型研究现状与发展趋势--基于CiteSpace的可视化分析

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江苏商论 2024年第5期 123-127页

作者：赵丽锦常州信息职业技术学院江苏常州213164

随着数字技术的蓬勃发展和社会经济发展模式的深刻变革,教育数字化转型已成为培养高质量技能型人才的重要手段。为全面了解教育数字化转型相关研究进展,我们进行了研究,发现:教育数字化转型研究经历了前沿探索期、快速发展期和成熟稳定... 详细信息

随着数字技术的蓬勃发展和社会经济发展模式的深刻变革,教育数字化转型已成为培养高质量技能型人才的重要手段。为全面了解教育数字化转型相关研究进展,我们进行了研究,发现:教育数字化转型研究经历了前沿探索期、快速发展期和成熟稳定期三个阶段,呈现出研究机构和作者小集中、大分散的趋势,研究主题由理论研究向理论与应用研究并重演化等特点。

关键词：教育数字化 CiteSpace 知识图谱可视化分析

职业教育数字化转型的目标牵引、逻辑解析与实现策略

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教育理论与实践 2024年第3期44卷 25-29页

作者：赵丽锦戴建平马娱常州信息职业技术学院数字经济学院江苏常州213164 浙江舟山群岛新区旅游与健康职业学院商务学院浙江舟山316111

职业教育数字化转型是在应对外部数字经济环境变迁和内部职业教育高质量发展要求的背景下,依托数字技术赋能,围绕“国家、社会、院校、教师、学生”等多元主体,“教学模式、教学方法、教学资源”等多维内容实施的系统性职业教育生态系... 详细信息

职业教育数字化转型是在应对外部数字经济环境变迁和内部职业教育高质量发展要求的背景下,依托数字技术赋能,围绕“国家、社会、院校、教师、学生”等多元主体,“教学模式、教学方法、教学资源”等多维内容实施的系统性职业教育生态系统变革与创新过程。职业教育数字化转型过程始终秉持着实现战略设计、满足现实诉求与构建未来场景的多重目标,而驱动目标实现的价值逻辑、技术逻辑和迭代逻辑贯穿于数字化转型全过程。推动职业教育数字化转型需以政策先行,指引转型方向标;资源匹配,提供转型动力源;多元协同,构建转型共同体;应用为王,落地转型新生态。

关键词：职业教育数字化转型驱动目标技能型人才政策先行资源匹配多元协同

Application for traditional Chinese medicine in treating functional dyspepsia

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Psychosomatic Medicine Research 2020年第4期2卷 129-135页

作者： zhao-jin li Tianjin fifth central hospital TianjinChina

Functional dyspepsia (FD) is a common disease in the department of gastroenterology, and its incidence tends toincrease year by year. It has become one of the important diseases plaguing modern people. Western medicine isnot ideal in clinical treatment, and this disease is easy to relapse. Traditional Chinese medicine (TCM) treatmentFD has a unique potential advantage, mainly for the wide range of application, long-term application of smalladverse reactions, and obtaining certain curative effect in clinical application. This paper summarizes the progressof TCM in the treatment of FD in clinical practice, so as to provide a reference for the clinical application of TCMin the treatment of FD.

关键词： Functional dyspepsia Gastroenterology Traditional Chinese medicine

稀土X(X=La、Ce、Pr、Nd)修饰单层h-MoS_(2)的NO气敏性

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原子与分子物理学报 2024年第3期41卷 17-25页

作者：薛丽丽高静赵丽瑾王芳王伟张一鸣山东省产品质量检验研究院济南250100 吉林大学微纳传感材料与器件实验室长春130012

为提高h-MoS_(2)对NO的气敏性,采用第一性原理研究了X(X=La、Ce、Pr和Nd)对h-MoS_(2)的稳定性、吸附特性、功函数和伏安特性的影响.研究结果表明:X(X=La、Ce、Pr和Nd)取代Mo原子后得到的形成能均为负,说明掺杂体系容易形成且稳定存在.同... 详细信息

为提高h-MoS_(2)对NO的气敏性,采用第一性原理研究了X(X=La、Ce、Pr和Nd)对h-MoS_(2)的稳定性、吸附特性、功函数和伏安特性的影响.研究结果表明:X(X=La、Ce、Pr和Nd)取代Mo原子后得到的形成能均为负,说明掺杂体系容易形成且稳定存在.同时X掺杂后的h-MoS_(2)布居数相比于未掺杂前的大,也说明掺杂有利于体系稳定.NO吸附在La、Ce原子顶部位置的吸附能为-1.215 eV、-1.225 eV,吸附距离分别为2.475?、2.854?,具有明显的化学吸附特征.同时Hirshfeld转移电荷分别为0.213e和0.325e,具有明显的受体特征,提高了气敏性.La和Ce掺杂后能明显改变功函数的大小,也说明La和Ce能提高h-MoS_(2)对NO的气敏性.施加电场后能有效提高Pr掺杂体系的吸附强度,增大Hirshfeld转移电荷,对功函数的改变最大,所以电场对Pr掺杂体系的影响非常明显.通过分析掺杂体系的伏安特性曲线,La、Ce两掺杂体系的电流分别由0增大到5.3μA和4.8μA,而Pr、Nd两掺杂体系的电流分别由0增大到2.2μA和1.2μA,所以La、Ce掺杂对于体系敏感性的影响比较明显.

关键词：单层h-MoS_(2) 第一性原理气敏性吸附能功函数

Paraffin–CaCl_(2)·6H_(2)O dosage effects on the strength and heat transfer characteristics of cemented tailings backfill

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International Journal of Minerals,Metallurgy and Materials 2024年第1期31卷 60-70页

作者： Hai li Aibing jin Shuaijun Chen Yiqing zhao You Ju Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mine University of Science and Technology BeijingBeijing 100083China School of Civil and Resources Engineering University of Science and Technology BeijingBeijing 100083China

The challenge of high temperatures in deep mining remains harmful to the health of workers and their production efficiency The addition of phase change materials (PCMs) to filling slurry and the use of the cold storage function of these materials to reduce downhole temperatures is an effective approach to alleviate the aforementioned problem.Paraffin–CaCl_(2)·6H_(2)O composite PCM was prepared in the laboratory.The composition,phase change latent heat,thermal conductivity,and cemented tailing backfill (CTB) compressive strength of the new material were studied.The heat transfer characteristics and endothermic effect of the PCM were simulated using Fluent software.The results showed the following:(1) The new paraffin–CaCl_(2)·6H_(2)O composite PCM improved the thermal conductivity of native paraffin while avoiding the water solubility of CaCl_(2)·6H_(2)O.(2) The calculation formula of the thermal conductivity of CaCl_(2)·6H_(2)O combined with paraffin was deduced,and the reasons were explained in principle.(3) The“enthalpy–mass scale model”was applied to calculate the phase change latent heat of nonreactive composite PCMs.(4)The addition of the paraffin–CaCl_(2)·6H_(2)O composite PCM reduced the CTB strength but increased its heat absorption capacity.This research can give a theoretical foundation for the use of heat storage backfill in green mines.

关键词： paraffin–CaCl_(2)·6H_(2)O heat transfer simulation heat calculation phase change material-based backfill latent heat of formula

Disease Burden and Costs Associated with Multiple Sclerosis in China:A Cross-sectional Analysis of Nationwide Survey Data

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Neuroscience Bulletin 2024年第4期40卷 533-538页

作者： Yusheng Jia Xuanqi Qiao jin zhao Hainan li Shanlian Hu Min Hu Department of Health Economics School of Public HealthFudan UniversityShanghai200032China National Health Commission Key Laboratory of Health Technology Assessment Fudan UniversityShanghai200032China

DearEditors,Multiple sclerosis(MS)is a chronic,autoimmune neurological disorder characterized by inflammatory demyelination of the central nervous system;it is associated with reduced mobility,cognitive impairment,and numerous comorbidities[1].Global MS incidence(2.1 per 100,000 person-years)and prevalence(30.1 per 100,000)have increased in recent years,and its prevalence is notably higher in Western countries,ranging from~30 to 200 cases per 100,000[2].In China,recent epidemiological research has shown that the crude prevalence was 2.44 per 100,000 in 2016[3],and the age-and sex-adjusted incidence was 0.235 per 100,000 person-years[4].Despite the relatively low prevalence compared with the global average,China has extensively addressed the well-being of over 30,000 MS patients,enrolling MS in China's First National list of Rare Diseases in 2018.

关键词： prevalence impairment autoimmune

Oscillation properties of eigenfunctions for Sturm-liouville problems with interface conditions via Prufer transformation

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Applied Mathematics(A Journal of Chinese Universities) 2024年第2期39卷 191-200页

作者： li Zhi-yu li Kun CAI jin-ming QIN Jian-fang ZHENG zhao-wen School of Mathematical Sciences Qufu Normal UniversityQufu 273165China College of Mathematics and Systems Science Guangdong Polytechnic Normal UniversityGuangzhou 510665China

A class of Sturm-liouville problems with discontinuity is studied in this paper.The oscillation properties of eigenfunctions for Sturm-liouville problems with interface conditions are obtained.The main method used in this paper is based on Prufer transformation,which is different from the classical ones.Moreover,we give two examples to verify our main results.

关键词： Sturm-liouville problem interface condition oscillatory solution

Design strategies of high-performance lead-free electroceramics for energy storage applications

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Rare Metals 2024年第3期43卷 853-878页

作者： Biao Guo Fei jin li li Zi-zhao Pan Xin-Wei Xu Hong Wang Department of Materials Science and Engineering College of EngineeringSouthern University of Science and TechnologyShenzhen518055China School of Microelectronics and State Key Laboratory for Mechanical Behavior of Materials Xi’an Jiaotong UniversityXi’an710049China

A greater number of compact and reliable electrostatic capacitors are in demand due to the Internet of Things boom and rapidly growing complex and integrated electronic systems,continuously promoting the development of high-energy-density ceramic-based capacitors.Although significant successes have been achieved in obtaining high energy densities in lead-based ferroelectric ceramics,the utilization of lead-containing ceramies has been restricted due to environmental and health hazards of lead.Lead-free ferroelectric ceramics have garnered tremendous attention and are expected to replace lead-based ceramics in the near future.However,the energy density of lead-free ceramics is still lagging behind that of lead-containing cou.nterparts,severely limiting their applications.Significant efforts have been made to enhance the energy storage performance of lead-free ceramics using multi-scale design strategies,and exciting progress has been achieved in the past decade.This review briefly discusses the energy storage mechanism and fundamental characteristics of a dielectric capacitor,summarizes and compares the state-of-the-art design strategies for high-energy-density lead-free ceramics,and highlights several critical issues and requirements for industrial production.The prospects and challenges of lead-free ceramics for energy storage applications are also discussed.

关键词： Dielectric materials Lead-free ceramic Environment friendly Energy storage Design strategy