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Science Bulletin 2024年第2期69卷 209-217页

作者： Chuyang Jing Kuan Dai Dong Liu Wenran Wang Libao Chen chunxiao zhang Weifeng Wei State Key Laboratory of Powder Metallurgy Central South UniversityChangsha 410083China College of Materials and Chemical Engineering Hunan Institute of EngineeringXiangtan 411104China

High-voltage lithium metal batteries(LMBs)have been considered promising next-generation highenergy-density batteries.However,commercial carbonate electrolytes can scarcely be employed in LMBs owing to their poor compatibility with metallic lithium.N,N-dimethylacrylamide(DMAA)-a crosslinkable solubilizer with a high Gutmann donor number-is employed to facilitate the dissolution of insoluble lithium nitrate(LiNO3)in carbonate-based electrolytes and to form gel polymer electrolytes(GPEs)through in situ polymerization.The Lit solvation structure of the GPEs is regulated using LiNO3 and DMAA,which suppresses the decomposition of LiPFe and facilitates the formation of an inorganic-rich solid electrolyte interface.Consequently,the Coulombic efficiency(CE)of the LillCu cell assembled with a GPE increases to 98.5%at room temperature,and the high-voltage LillNCM622 cell achieves a capacity retention of 80.1%with a high CE of 99.5%after 400 cycles.The bifunctional polymer electrolytes are anticipated to pave the way for next-generation high-voltage LMBs.

关键词： Crosslinked solubilizer Lithium nitrate Carbonate electrolytes Gel polymer electrolytes Lithium metal batteries

Exothermic Performance of the Calcined Limestone Determined by Exothermic Temperature under Fluidization during CaCO_(3)/CaO Energy Storage Cycles

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Journal of Thermal Science 2023年第5期32卷 1784-1796页

作者： FANG Yi ZHAO Jianli zhang chunxiao LI Yingjie Shandong Engineering Laboratory for High-Efficiency Energy Conservation and Energy Storage Technology&Equipment School of Energy and Power EngineeringShandong UniversityJi'nan 250061China

Thermochemical energy storage based on CaO/CaCO_(3)cycles has obtained significant attention as an alternative energy storage solution for concentrated solar power plants.In view of the applicability of fluidized bed reactors for CaO/CaCO_(3)heat storage,it is imperative to study the factors related to the heat release performance of CaO.This work presents an exothermic experiment on calcined limestone under fluidization,exploring the impact of initial temperature,CO_(2)concentration,particle size,superficial gas velocity,and number of cycles on the exothermic performance of CaO.The result indicates that CaO with high initial temperature leads to higher exothermic temperature,with better exothermic stability under cycles.An optimal initial temperature range of 600℃-650℃exists with an actual CaO conversion rate deviating merely 2%from theoretical conversion.Higher CO_(2)concentration augments the exothermic temperature and rate of CaO,while also improves the effective conversion of CaO.Nevertheless,high CO_(2)concentrations exacerbate the sintering and deactivation of CaO.High superficial gas velocity and small particle size shorten the exothermic time by increasing heat dissipation,but has minimal effect on the exothermic properties.Finally,the exothermic properties of CaO under fluidized and static conditions are studied.The result shows that exothermic temperature and exothermic rate of CaO under fluidization are enhanced,displaying higher heat storage performance than that under static state.This study provides valuable insights for optimizing the exothermic performance of CaO in fluidized bed reactors,contributing to advanced thermochemical energy storage for concentrated solar power plants.

关键词： CaO/CaCO_(3)heat storage cycles exothermic temperature fluidization exothermic performance

Antioxidant effects of the aqueous extract of turmeric against hydrogen peroxide-induced oxidative stress in spotted seabass(Lateolabrax maculatus)

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Aquaculture and Fisheries 2024年第1期9卷 71-77页

作者： Zhe Wang Xiuqin Wang Xueshan Li Kangle Lu Ling Wang Xuekun Ma Kai Song chunxiao zhang Xiamen Key Laboratory for Feed Quality Testing and Safety Evaluation Fisheries College of Jimei UniversityXiamen361021China Guangdong Yuehai Feed Group Co. Ltd.GuangdongZhanjiang524000China

Intensive aquaculture-induced oxidative stress is detrimental to fish health and yield.Medicinal plants show promise as natural health boosters and antioxidants in the aquaculture industry.Therefore,this work investigated the effects of turmeric aqueous extract(TAE)on the growth performance,antioxidant status,and hydrogen peroxide(H2O2)-induced oxidative stress in spotted seabass(Lateolabrax maculatus).Fish were fed diets supplemented with 0(Con),2(TAE2),or 4(TAE4)g/kg TAE for eight weeks,then were injected with H2O2.The results showed that dietary supplementation of TAE did not affect fish growth,feed utilization,or body composition.TAE treatment increased liver antioxidant enzyme activities and decreased liver malondialdehyde content and serum levels of glutamate oxalate transaminase,glutamate pyruvate transaminase,and lactate dehydrogenase.Furthermore,the increases in mortality,liver malondialdehyde content,and serum biomarkers of liver injury in the H2O2-treated fish were inhibited as a consequence of the TAE treatment.In addition,TAE treatment activated the Nrf2/Keap1 pathway in the liver,supported by the up-regulated expression of nrf2,ho-1,and gclc,and down-regulated keap1 expression.Overall,dietary incorporation of TAE protected against H2O2-induced oxidative stress in spotted seabass probably by enhancing antioxidant capacity through the Nrf2/Keap1 pathway.

关键词： Turmeric Medicinal plant Hydrogen peroxide Oxidative stress Lateolabrax maculatus

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“看不见的人声”:分裂主体与声音情动

北京电影学院学报 2024年第4期 68-76页

作者：张春晓苏州大学文学院

自有声片诞生以来,电影人声的存在不只是为画面里的人物配上对白,更是通过声音与影像的差异化关系实现各种表意效果,以不同于日常的视听体验激发关于声音的理论反思。电影技术令声音和银幕上的可见形象以各种形式分离和重组,充分暴露出... 详细信息

自有声片诞生以来,电影人声的存在不只是为画面里的人物配上对白,更是通过声音与影像的差异化关系实现各种表意效果,以不同于日常的视听体验激发关于声音的理论反思。电影技术令声音和银幕上的可见形象以各种形式分离和重组,充分暴露出声音与身体的不稳定结合。“看不见的人声”的叙事功能和艺术感染力,可以追溯至精神分析有关主体性建构的真理,即主体总是异化和分裂的,包含着他所不是的、陌生外来的东西。这种声音代表父性或母性的超我,另一方面声音的物质性又联系着逃逸象征秩序的剩余快感,能够唤起我们肉身性和整体性的知觉,构成一种前主体和非主题的情动。

关键词：电影人声无声源无形音角色分裂主体情动

Impact of inhaled corticosteroid use on elderly chronic pulmonary disease patients with community acquired pneumonia

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Chinese Medical Journal 2024年第2期137卷 241-243页

作者： Xiudi Han Hong Wang Liang Chen Yimin Wang Hui Li Fei Zhou Xiqian Xing chunxiao zhang Lijun Suo Jinxiang Wang Guohua Yu Guangqiang Wang Xuexin Yao Hongxia Yu Lei Wang Meng Liu Chunxue Xue Bo Liu Xiaoli Zhu Yanli Li Ying Xiao Xiaojing Cui Lijuan Li Xuedong Liu Bin Cao Department of Pulmonary and Critical Care Medicine Qingdao Municipal HospitalQingdaoShandong 266011China Department of Nosocomial Infection Qingdao Municipal HospitalQingdaoShandong 266011China Department of Infectious Diseases Nanjing Lishui People’s HospitalNanjingJiangsu 211213China Department of Pulmonary and Critical Care Medicine National Clinical Research Center of Respiratory DiseasesCenter for Respiratory DiseasesChina-Japan Friendship HospitalBeijing 100020China Department of Respiratory Medicine Yan’an Hospital Affiliated to Kunming Medical UniversityKunmingYunnan 652199China Department of Respiratory Medicine Beijing Huimin HospitalBeijing 100054China Department of Pulmonary and Critical Care Medicine Zibo Municipal HospitalZiboShandong 255000China Department of Respiratory Medicine Beijing Luhe HospitalCapital Medical UniversityBeijing 101149China Department of Pulmonary and Critical Care Medicine Weifang No.2 People’s HospitalWeifangShandong 261599China Department of Respiratory Medicine Shandong University Affiliated Qilu Hospital(Qingdao)QingdaoShandong 266035China Department of Respiratory Medicine the 2nd Hospital of Beijing CorpsChinese Armed Police ForcesBeijing 100044China Department of Infectious Disease Qingdao University Medical College Affiliated Yantai Yuhuangding HospitalYantaiShandong 100191China Department of Respiratory Medicine Rizhao Chinese Medical Hospital Affiliated to Shandong Chinese Medical UniversityRizhaoShandong 276800China Department of Respiratory Medicine Beijing Hospital of Traditional Chinese Medicine Affiliated to Capital Medical UniversityBeijing 100010China Department of Occupational Medicine and Toxicology Beijing Chao-Yang HospitalCapital Medical UniversityBeijing 100020China

To the Editor:With an aging global population,the incidences of community-acquired pneumonia(CAP)and chronic obstructive pulmonary disease(COPD)have signicantly increased.[1]Previous studies have conrmed that COPD and asthma are independently associated with the prevalence of CAP.The use of inhaled corticosteroid(ICS),the cornerstone of treatment for asthma,COPD with frequent acute exacerbations,and asthma-COPD overlap(ACO)may induce changes in the local lung microbiome and abnormal lung immunity,ultimately,causing a signicantly increased risk of pneumonia.However,in cases of pneumonia,the effect of the use of ICS on CAP mortality remains controversial.While data from one study favored the prior use of ICS,which was associated with a signicantly lower short-term mortality rate,[2]other studies have identied no impact on mortality.To date,data on the impact of the use of ICS on mortality,prehospitalization or during hospitalization,are scarce,particularly in the older population.Therefore,this multicenter,retrospective study explored the association between the use of ICS during hospitalization and short-term mortality in older patients with CAP and those with chronic pulmonary disease(CPD).

关键词： pneumonia patients immunity

悬疑与怀旧:2020—2023年中国犯罪电影的现实变奏

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电影艺术 2024年第1期 75-81页

作者：张春晓高文丽苏州大学文学院英国布里斯托大学

2020—2023年的中国犯罪电影在数量、质量和影响力上表现突出,整体上显现出与以往犯罪片不同的新变。影片广泛关注反腐扫黑、反赌反诈、性别暴力等现实问题,在人物塑造和表现尺度上有所突破。而在叙事上显著的变化是与悬疑类型结合,呈... 详细信息

2020—2023年的中国犯罪电影在数量、质量和影响力上表现突出,整体上显现出与以往犯罪片不同的新变。影片广泛关注反腐扫黑、反赌反诈、性别暴力等现实问题,在人物塑造和表现尺度上有所突破。而在叙事上显著的变化是与悬疑类型结合,呈现出封闭的剧场效果和不断反转,这种讲述现实的方式既隔绝了现实,又与现实曲折相关,受到更大范围的媒介环境变化的影响。还有一类怀旧的艺术电影和动作片,20世纪90年代可作为其症结根源、另类想象或现实同构之物。

关键词：犯罪片悬疑片反转怀旧

Research on various factors influencing the moisture absorption property of sodium polyacrylate

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Science China Chemistry 2009年第7期52卷 1000-1008页

作者： zhang chunxiao zhang WanXi PAN ZhenYuan zhang XiYao LIU Jian YUE ChongWang School of Material Science and Engineering Jilin UniversityChangchun 130025China Dalian University of Technology School of Automotive EngineeringDalian 116000China Changchun Institute of Applied Chemistry Chinese Academy of SciencesChangchun 130022China School of Geoexploration Science and Technology Jilin UniversityChangchun 130025China

Sodium polyacrylate was synthesized with acrylic acid as the monomer, and sodium bisulfate and ammonium persulfate as the initiator, by means of aqueous solution polymerization. The factors influencing the properties of moisture absorption, such as monomer concentration, dosage of initiator, and reaction temperature were systematically investigated. The experimental results indicate that the moisture-absorbing property of this polymer was better than other traditional material, such as silica gel, and molecular sieve. The best reaction condition and formula are based on the orthogonal experiment design. The optimum moisture absorbency of sodium polyacrylate reaches 1.01 g/g. The mathematical correlation of this polymer with various factors and moisture absorbency is obtained based on the multiple regression analysis. The moisture content intuitive analysis table shows that neutralization degree has the most significant influence on moisture absorbency, followed by monomer concentration and reaction temperature, while other factors have less influence.

关键词： moisture absorption sodium polyacrylate aqueous solution polymerization orthogonal experiment

A Review on Recent Development of Cooling Technologies for Photovoltaic Modules

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Journal of Thermal Science 2020年第6期29卷 1410-1430页

作者： zhang chunxiao SHEN Chao WEI Shen WANG Yuan LV Guoquan SUN Cheng Key Laboratory of Cold Region Urban and Rural Human Settlement Environment Science and Technology Ministry of Industry and Information TechnologySchool of ArchitectureHarbin Institute of TechnologyHarbin 150090China The Bartlett School of Construction and Project Management University College London(UCL)London WC1E 7HBUK

When converting solar energy to electricity,a big proportion of energy is not converted for electricity but for heating PV cells,resulting in increased cell temperature and reduced electrical efficiency.Many cooling technologies have been developed and used for PV modules to lower cell temperature and boost electric energy yield.However,little crucial review work was proposed to comment cooling technologies for PV modules.Therefore,this paper has provided a thorough review of the up-to-date development of existing cooling technologies for PV modules,and given appropriate comments,comparisons and discussions.According to the ways or principles of cooling,existing cooling technologies have been classified as fluid medium cooling(air cooling,water cooling and nanofluids cooling),optimizing structural configuration cooling and phase change materials cooling.Potential influential factors and sub-methods were collected from the review work,and their contributions and impact have been discussed to guide future studies.Although most cooling technologies reviewed in this paper are matured,there are still problems need to be solved,such as the choice of cooling fluid and its usability for specific regions,the fouling accumulation and cleaning of enhanced heat exchangers with complex structures,the balance between cooling cost and net efficiency of PV modules,the cooling of circulating water in tropical areas and the freezing of circulating water in cold areas.To be advocated,due to efficient heat transfer and spectral filter characters,nanofluids can promote the effective matching of solar energy at both spectral and spatial scales to achieve orderly energy utilization.

关键词： solar energy PV modules cooling technologies nanoparticles phase change materials

含R1234yf混合工质汽液相平衡的混合规则评估与预测研究

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化工学报 2024年第2期75卷 475-483页

作者：王林江荣鼎张春晓李修真谈莹莹河南科技大学建筑能源与热科学技术研究所河南洛阳471023

含R1234yf混合工质具有系统性能优良且对环境友好的特点,在当前制冷剂迭代中受到了广泛关注。汽液相平衡性质是混合工质的基础热物理性质,其理论计算至关重要。为提高含R1234yf混合工质汽液相平衡数据的计算精度,选取PR状态方程结合vdW... 详细信息

含R1234yf混合工质具有系统性能优良且对环境友好的特点,在当前制冷剂迭代中受到了广泛关注。汽液相平衡性质是混合工质的基础热物理性质,其理论计算至关重要。为提高含R1234yf混合工质汽液相平衡数据的计算精度,选取PR状态方程结合vdW、WS、MHV1三种混合规则和NRTL活度系数模型评估了16种含R1234yf二元混合工质的汽液相平衡性质。结果表明,WS混合规则和MHV1混合规则计算性能优于vdW混合规则;vdW混合规则对大多数混合工质计算性能较好。最后提出一种预测模型预测含R1234yf混合工质汽液相平衡性质,预测的相对压力偏差值为0.49%,气相摩尔分数绝对偏差值为0.0031,预测偏差满足工程应用。

关键词： R1234yf 混合物汽液相平衡混合规则模型预测

基于案例推理和知识图谱的WRF气象模拟知识推荐研究

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地球信息科学学报 2024年第5期26卷 1257-1269页

作者：张春晓马同彬祁亚州王爱佳郝晓阳中国地质大学(北京)信息工程学院北京100083

地理模拟作为地理环境模拟与认知的重要方法,是挖掘地理知识、揭示地理规律的重要手段。气象模拟,作为重要组成部分参与到地理环境模拟的诸多方面,影响到地理环境的系统模拟和复杂问题求解。而气象模型专业性强、模拟知识复杂,涉及到输... 详细信息

地理模拟作为地理环境模拟与认知的重要方法,是挖掘地理知识、揭示地理规律的重要手段。气象模拟,作为重要组成部分参与到地理环境模拟的诸多方面,影响到地理环境的系统模拟和复杂问题求解。而气象模型专业性强、模拟知识复杂,涉及到输入数据、模拟方案设置等诸多方面,所以如何高效管理及共享气象模拟知识成为亟需解决的问题。本文应用案例推理和知识图谱,统一异构的气象模拟知识,研究顾及语义和图结构相似度的气象模拟知识推荐方法,以提高气象模拟知识的共享能力。①本文基于中文气象模拟文献资料抽取了气象模拟知识,以模拟案例为载体,在知识图谱中构建气象模拟知识库;②构建气象模拟案例相似度评估模型,实现顾及语义和图结构相似度的气象模拟知识推荐,该模型一方面利用经过气象模拟语料库训练的Bert(Bidirectional Encoder Representations from Transformers)语义模型挖掘气象模拟知识案例的语义特征,另一方面提取存储在图谱中模拟案例的结构特征,并通过AHP(Analytic Hierarchy Process)层次分析法进行权重设置,从而准确的衡量气象模拟案例的相似度。③研发了可视化的气象模拟知识共享原型系统,可以根据用户需求推荐气象模拟知识的参数方案,为涉及气象过程的地理系统模拟人员提供知识参考。基于所构建的气象模拟知识库,经推荐准确性和稳定性评估,系统的推荐准确率达到91.3%,研究成果提高了气象模拟知识共享和重用能力。

关键词：知识图谱语义模型知识推荐知识共享案例推理气象模拟图相似度 Bert模型