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Thermal and mechanical characterization of under-2-μm-thick AlCrNbSiTi high-entropy thin film

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Energy Storage and Saving 2024年第1期3卷 52-59页

作者： Yibo Wang Xiaona Huang Yan Liu xiangyu Zhang Bing Yang Yanan Yue School of Power and Mechanical Engineering Wuhan UniversityWuhan430072China

High-entropy alloys(HEAs)exhibit extraordinary physical properties such as superior strength-to-weight ratios and enhanced corrosion and oxidation resistance,making them potentially useful in energy storage and gener-ation ***,thermal and mechanical properties of HEAs with various compositions vary ***,these properties have rarely been investigated simultaneously owing to material or instru-mentation ***,we synthesize an HEA(AlCrNbSiTi)coating with a thickness of less than 2μ*** customize a frequency-domain photothermal testing system to characterize the thermal and mechanical proper-ties of the proposed coating with high *** to the large mixing enthalpy of the Al-Ti,Nb-Si,and Ti-Si pairs in the coating,its hardness and elastic modulus are 15.2 and 254.7 GPa,respectively,which are higher than those of previously reported *** thermal conductivity of the AlCrNbSiTi coating is characterized to be 2.90 W·m^(−1)·K^(−1),within the expected range and well explained by the free-electron consistency diversity and phonon scattering from the amorphous ***,the coating exhibits adequate wear performance,with a wear rate of 5.4×10^(−8) mm^(3)·N^(−1)·m^(−1).This relatively low thermal conductivity,combined with extraordi-nary mechanical properties,makes the proposed material an excellent candidate as a protective coating material for nuclear reactor components which require high strength,irradiation resistance,and thermal protection.

关键词： High-entropy alloys Thin coating Thermal conductivity Mechanical properties Noncontact photothermal technique

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明代周藩宗正朱睦㮮《春秋》学略论

河南工业大学学报（社会科学版） 2020年第6期36卷 100-105页

作者：周翔宇成都大学文学与新闻传播学院四川成都610106

朱睦㮮是明代开封著名的宗室学者,其学术以《春秋》学为重点,在明代中后期的学术环境中显现出鲜明个性。在其宗室身份的影响下,朱睦㮮的治学路径也具有取向丰富、多路并进的特点,而数量众多的学术著作更反映出其《春秋》学以事解经、严明... 详细信息

朱睦㮮是明代开封著名的宗室学者,其学术以《春秋》学为重点,在明代中后期的学术环境中显现出鲜明个性。在其宗室身份的影响下,朱睦㮮的治学路径也具有取向丰富、多路并进的特点,而数量众多的学术著作更反映出其《春秋》学以事解经、严明尊卑、汉宋兼采的特色,其治学成果对《春秋》学史的研究也产生了一定影响。

关键词：朱睦㮮《春秋》学以事解经汉宋兼采

Gene Cloning and Bioinformatics Analysis of phoR Gene from Vibrio alginolyticus HY9901

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Asian Agricultural Research 2024年第6期16卷 36-40页

作者： xiangyu LIU Peng zhou Haiyun FENG Weijie ZHANG Huanying PANG Na WANG Xiaonan LU Fisheries College Guangdong Ocean UniversityZhanjiang 524025China Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture&Key Laboratory of Control for Diseases of Aquatic Economic Animals of Guangdong Higher Education Institutes Zhanjiang 524025China Chinese Academy of Inspection and Quarantine Beijing100176China Department of Food Science and Agricultural Chemistry Faculty of Agricultural and Environmental SciencesMcGill UniversitySainte-Anne-de-Bellevue H9X 3V9Canada

PhoR is a histidine kinase in a two-component regulatory system that regulates phosphorus metabolic pathways and undertakes the key mission of information transmission in pathogenic *** full-length phoR gene was successfully cloned from the Vibrio alginolyticus HY9901 strain.A comprehensive analysis of the cloned gene was conducted using *** analysis revealed that the total length of the phoR gene(GenBank accession No.:KJ958404.1)is 1299 bp,with the coding region containing a total of 432 amino acid *** phylogenetic tree of PhoR revealed that it belongs to the same subclade as *** SMART program was employed for the purpose of functional domain prediction,which revealed that PhoR possesses three major functional domains:PAS(amino acids 98-166),HisKA(amino acids 205-272),and HATPase_c(amino acids 317-429).

关键词： Vibrio alginolyticus phoR gene Gene cloning Bioinformatics analysis

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高g值可见光导引头缓冲系统仿真设计及验证

兵器装备工程学报 2023年第10期44卷 25-30页

作者：胡志栋张新驰周祥宇东北林业大学机电工程学院哈尔滨150040

以可见光导引头橡胶垫缓冲减振结构为研究对象,确定橡胶材料的模型公式,建立橡胶垫缓冲减振的理论模型,验证使用ANSYS Workbench稳态和瞬态分析模块仿真分析的可行性;对橡胶垫材料属性进行线性化处理,通过设置不同的减振型式,在18000 g... 详细信息

以可见光导引头橡胶垫缓冲减振结构为研究对象,确定橡胶材料的模型公式,建立橡胶垫缓冲减振的理论模型,验证使用ANSYS Workbench稳态和瞬态分析模块仿真分析的可行性;对橡胶垫材料属性进行线性化处理,通过设置不同的减振型式,在18000 g工况下对镜片进行了强度校核,对比分析了减振效果,确定2片减振垫缓冲为最佳方案;用摆锤锤击等效冲击的方法验证了可见光导引头缓冲系统在高g值工况下能够正常工作。根据材料实验得到合适的橡胶参数,弹性模量取6 MPa,泊松比取0.47时,2片减振垫缓冲时镜片的安全系数能够达到4左右,验证了高g值条件下减振垫对光学镜片可靠性的影响,为后续研究奠定基础。

关键词：可见光导引头高g值橡胶垫缓冲减振 ANSYS Workbench

Online identification and extraction method of regional large-scale adjustable load-aggregation characteristics

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Global Energy Interconnection 2024年第3期7卷 313-323页

作者： Siwei Li Liang Yue xiangyu Kong Chengshan Wang Key Laboratory of Smart Grid of Ministry of Education Tianjin UniversityTianjin 300072P.R.China Beijing Fibrlink Communications Co. Ltd.Beijing 100071P.R.China

This article introduces the concept of load aggregation,which involves a comprehensive analysis of loads to acquire their external characteristics for the purpose of modeling and analyzing power *** online identification method is a computer-involved approach for data collection,processing,and system identification,commonly used for adaptive control and *** paper proposes a method for dynamically aggregating large-scale adjustable loads to support high proportions of new energy integration,aiming to study the aggregation characteristics of regional large-scale adjustable loads using online identification techniques and feature extraction *** experiment selected 300 central air conditioners as the research subject and analyzed their regulation characteristics,economic efficiency,and *** experimental results show that as the adjustment time of the air conditioner increases from 5 minutes to 35 minutes,the stable adjustment quantity during the adjustment period decreases from 28.46 to 3.57,indicating that air conditioning loads can be controlled over a long period and have better adjustment effects in the short ***,the experimental results of this paper demonstrate that analyzing the aggregation characteristics of regional large-scale adjustable loads using online identification techniques and feature extraction algorithms is effective.

关键词： Load aggregation Regional large-scale Online recognition Feature extraction method

原花青素干预缺血缺氧状态下骨骼肌卫星细胞的增殖和分化

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中国组织工程研究 2021年第26期25卷 4130-4136页

作者：陈诗杜超何雪梅周翔宇西南医科大学附属医院甲状腺外科四川省泸州市646000 西南医科大学附属医院医学实验中心四川省泸州市646000

背景:肢体缺血性损伤主要是由外周动脉疾病引起的,外科治疗可以恢复肢体的血液供应,但缺血再灌注仍然会加重组织损伤,减少氧化应激和促进受损骨骼肌再生可能有利于缺血肢体的治疗。目的:探讨原花青素对缺血缺氧状态下骨骼肌卫星细胞增... 详细信息

背景:肢体缺血性损伤主要是由外周动脉疾病引起的,外科治疗可以恢复肢体的血液供应,但缺血再灌注仍然会加重组织损伤,减少氧化应激和促进受损骨骼肌再生可能有利于缺血肢体的治疗。目的:探讨原花青素对缺血缺氧状态下骨骼肌卫星细胞增殖和分化能力的影响。方法:购买原代培养骨骼肌卫星细胞,取第2代细胞进行实验。以生理盐水组为对照组、2.5 mg/L或5 mg/L的原花青素作为实验组,将各组细胞置于低氧(体积分数1%的O2)、低血清(体积分数1%的胎牛血清)环境中培养,于不同时间点观察细胞。在第1,2,3,4天应用CCK8法检测细胞增殖情况;于第1天收集细胞,应用流式细胞仪检测细胞周期;提取细胞总蛋白,应用免疫印迹法检测增殖相关蛋白、细胞肌原性标志基因及通路相关蛋白的表达,并用共聚焦显微镜观察肌管形态。为进一步明确P38-MAPK信号通路在其间的作用,分别设置4组,分别为生理盐水组(对照组)、原花青素组、生理盐水+P38-MAPK通路抑制剂组、原花青素+P38-MAPK通路抑制剂组,观察各组细胞肌原性标志基因及相关通路蛋白表达情况。动物实验方案经西南医科大学动物实验伦理委员会批准,对小鼠行后肢缺血造模后,随机分为对照组和实验组(n=12),分别腹腔注射无菌注射用水及20 mg/kg原花青素,取干预7 d后小鼠的腓肠肌,苏木精-伊红染色法观察小鼠肌肉再生情况。结果与结论:(1)细胞实验结果:①缺血缺氧第1,2,3,4天,不同质量浓度原花青素组增殖能力均明显高于对照组,差异有显著性意义(P0.05);⑤缺血缺氧第3天,原花青素组p-P38-MAPK信号通路蛋白的表达明显高于对照组,差异有显著性意义(P0.05);(2)动物实验结果:小鼠下肢缺血第7天,原花青素组缺血腓肠肌每横断面积内中央核纤维/总肌纤维明显高于对照组,差异有显著性意义(P<0.05);(3)提示原花青素可促进缺血缺氧状态骨骼肌卫星细胞增殖,同时通过激活P38-MAPK信号通路诱导骨骼肌卫星细胞分化、肌原性标志基因表达和肌管形成,从而促进缺血损伤骨骼肌再生,修复受损肌纤维,发挥重要的保护作用。

关键词：原花青素骨骼肌卫星细胞缺血缺氧增殖分化

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探讨都灵国家电影博物馆的设计与应用

艺术与设计（理论版） 2020年第10期 69-72页

作者：周翔宇博洛尼亚美院意大利博洛尼亚40126

博物馆——人类文明进程的传播载体,一个让展品与渴望倾听者相互交流的空间,而电影是近现代文化艺术输出的重要媒介,两者因设计而互融更容易实现某种直击心灵的美好感观。意大利国家电影博物馆是二者融合最具代表性和影响力的作品之一,... 详细信息

博物馆——人类文明进程的传播载体,一个让展品与渴望倾听者相互交流的空间,而电影是近现代文化艺术输出的重要媒介,两者因设计而互融更容易实现某种直击心灵的美好感观。意大利国家电影博物馆是二者融合最具代表性和影响力的作品之一,它的合理设计将外部空间、展示空间和观光娱乐功能完美地诠释其中。文章以意大利国家电影博物馆的博物馆设计为分析案例,从建筑方式、展览空间、布展方式和设计亮点等方面做简要的分析与探讨。

关键词：电影博物馆展示空间设计交互系统

Utilization of 3D printing technology in hepatopancreatobiliary surgery

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2024年第2期25卷 123-134页

作者： Wujiang SHI Jiangang WANG Jianjun GAO Xinlei ZOU Qingfu DONG Ziyue HUANG Jialin SHENG Canghai GUAN Yi XU Yunfu CUI xiangyu ZHONG Department of Hepatopancreatobiliary Surgery the Second Affiliated Hospital of Harbin Medical UniversityHarbin150086China Department of General Surgery Tangdu HospitalAir Force Medical UniversityXi’an710032China Key Laboratory of Basic Pharmacology of Ministry of Education Zunyi Medical UniversityZunyi563006China Key Laboratory of Functional and Clinical Translational Medicine Fujian Province UniversityXiamen Medical CollegeXiamen361000China Department of Pathology Li Ka Shing Faculty of MedicineThe University of Hong KongHong KongChina Jiangsu Province Engineering Research Center of Tumor Targeted Nano Diagnostic and Therapeutic Materials Yancheng Teachers UniversityYancheng224007China Key Laboratory of Biomarkers and In Vitro Diagnosis Translation of Zhejiang Province Hangzhou310053China Key Laboratory of Gastrointestinal Cancer(Fujian Medical University) Ministry of EducationSchool of Basic Medical SciencesFujian Medical UniversityFuzhou350122China Key Laboratory of Myocardial Ischemia Harbin Medical UniversityMinistry of EducationHarbin150086China

The technology of three-dimensional(3D)printing emerged in the late 1970s and has since undergone considerable development to find numerous applications in mechanical engineering,industrial design,and *** biomedical science,several studies have initially found that 3D printing technology can play an important role in the treatment of diseases in hepatopancreatobiliary *** example,3D printing technology has been applied to create detailed anatomical models of disease organs for preoperative personalized surgical strategies,surgical simulation,intraoperative navigation,medical training,and patient ***,cancer models have been created using 3D printing technology for the research and selection of chemotherapy *** the aim to clarify the development and application of 3D printing technology in hepatopancreatobiliary surgery,we introduce seven common types of 3D printing technology and review the status of research and application of 3D printing technology in the field of hepatopancreatobiliary surgery.

关键词： 3D printing Hepatopancreatobiliary surgery Organ model Cancer model

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基于振荡波的变压器绕组故障诊断方法研究

中国电机工程学报 2020年第1期40卷 348-357页

作者：吴振宇周利军周祥宇林桐郭蕾刘红文江俊飞西南交通大学电气工程学院四川省成都市610031 云南电网有限责任公司电力科学研究院云南省昆明市650217

不同的变压器绕组诊断方法对故障的灵敏度存在差异性,为进一步提高变压器绕组状态诊断的可靠性,提出一种基于振荡波的变压器绕组故障诊断检测方法。该方法在绕组一端施加直流激励,通过电子开关实现高压直流信号的暂态变化,并在绕组末端... 详细信息

不同的变压器绕组诊断方法对故障的灵敏度存在差异性,为进一步提高变压器绕组状态诊断的可靠性,提出一种基于振荡波的变压器绕组故障诊断检测方法。该方法在绕组一端施加直流激励,通过电子开关实现高压直流信号的暂态变化,并在绕组末端测量振荡信号用于绕组状态的分析。同时,通过现场220 kV变压器测试和实验室变压器绕组故障模拟平台研究了系统参数和典型绕组故障对振荡波信号的影响规律。研究结果表明:振荡波法抗干扰能力较强,测试重复性较好,相比于频率响应法,振荡波法针对变压器绕组特定故障的灵敏度相对较高,能够较为准确辨识变压器绕组的状态,进一步为现场变压器绕组状态检测提供参考。

关键词：振荡波变压器绕组变形故障诊断