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Computerized Control and Operation of Rutherford Backscattering/Channeling for an in situ Ion Beam System and Its Application for Measurement of Si（001） and ZnO（001）

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Chinese Physics Letters 2011年第1期28卷 66-69页

作者： HE jun J. C. LEE LI ming WANG Ze-song LIU Chuan-Sheng FU De-jun Accelerator Laboratory Wuhan University Wuhan 430072 Quantum-Functional Semiconductor Research Center Dongguk University 3-26 Pildong Seoul 100-715 Korea

A computer-automated Rutherford backscattering/channeling （RBS/C） system is developed to provide in situ ion beam analysis of the accelerator-TEM system in Wuhan University. The basic system components are a PC equipped with a multichannel analyzer data acquisition board, motion control hardware including the Panmure stepping motor controller and integrated circuit modules, and a Labview programmed operating system with associated electronics. Single crystalline Si（001） and ZnO（001） implanted with Mn ions were characterized with this computerized setup. The crystalline quality Xmin and channeling half angle of Si（O01） were measured to be 4.65% and 0.52%, respectively, which are comparable to theoretical values 4.2% and 0.32%. The ion implantation induced damage depth profile derived from channeling and random spectrum is in reasonable agreement with the result calculated by the SRIM Monte-Carlo simulation code.

关键词： Surfaces interfaces and thin films Condensed matter: structural mechanical & thermal

Oxide Nanofibers as Catalysts Toward Energy Conversion and Environmental Protection

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Chemical Research in Chinese Universities 2021年第3期37卷 366-378页

作者： WANG jun FU Wanlin XU Wanlin WU min SUN Yueming DAI Yunqian School of Chemistry and Chemical Engineering Southeast UniversityNanjing211189China

Ultrathin oxide nanofibers are widely used in an array of catalytic applications toward energy conversion and environmental *** progress has been made with regard to the development of engineering oxide nanofibers into unique structures to suit or enable various *** aim to provide a comprehensive overview of oxide nanofibers,including the structure engineering,derivates,assemblies and their *** begin with a brief introduction to the production of nanofibers with diversified compositions,structures and properties,followed by discussions of the wet-chemistry ***,we discuss the applications of catalytic oxide nanofibers,including electrocatalysis,photocatalysis and *** we highlight the most significant role of oxide nanofibers as catalyst support for the immobilization of metal ***,we showcase the advanced assemblies based on oxide nanofibers,including their use as multi-functional membranes and *** the end,we offer perspectives on the challenges,opportunities and new directions for future development.

关键词： Electrospinning Oxide nanofiber Catalyst Support

Study of contact resistance in the design of a pyro-breaker applied in superconducting fusion facility

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Plasma Science and Technology 2019年第6期21卷 153-159页

作者： jun HE Zhiquan song Cunwen TANG Peng FU Jie ZHANG Institute of Plasma Physics Chinese Academy of Sciences Hefei 230031 People's Republic of China University of Science and Technology of China Hefei 230031 People's Republic of China

Pyro-breaker is a fast-responding and high-reliable explosive-driven circuit breaker,which has been applied in several quench protection systems,such as International Thermonuclear Experimental Reactor and Experimental Advanced Superconducting *** an indispensable back-up switch,Pyro-breaker guarantees the reliability and safety of the system and avoids tremendous loss when quench *** contact,a crucial part of an electrical device greatly determines the steady current capacity of a ***,due to the complexity of the model and the deficiency knowledge of the microstate of contact areas,an accurate calculation for contact resistance is difficult to acquire.A study of electrical contact in the design of a Pyro-breaker has been presented in this *** engineering calculation method is verified with *** are fitted for the presented model,which will be a significant theoretical basis for the future designing.

关键词： quench protection system pyro-breaker contact resistance four-point-method

Anemia in patients with Takayasu arteritis: prevalence, clinical features, and treatment

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Journal of Geriatric Cardiology 2019年第9期16卷 689-694页

作者： Ying ZHANG Di ZHANG Yi QU Peng FAN Ya-Xin LIU Hui-min ZHANG Lei song Wen-jun MA Hai-Ying WU jun CAI Fang LUO Xian-Liang ZHOU De-Yu ZHENG Li-Sheng LIU Department of Cardiology Fuwai Hospital National Center for Cardiovascular Diseases Chinese Academy of Medical Sciences and Peking Union Medical College

Background Anemia is a common comorbidity of patients with Takayasu arteritis(TA). This study evaluated the prevalence, clinical characteristics, and treatment in Chinese TA patients with anemia. Methods This retrospective study included 533 consecutive patients hospitalized for TA from January 2009 to April 2018. Anemia was diagnosed on the basis of hemoglobin level, according to World Health Organization criteria. Results A total of 194 patients(36.4%) were diagnosed with anemia. Most had mild anemia(177, 91.2%). Female patients were predominant(92.8% of anemic patients). Normocytic anemia(62.9%) was the most common pattern. Anemic patients were more likely than non-anemic patients to have dizziness(29.4% vs. 21.2%), low body mass index(22.0 ± 3.6 vs. 22.9 ± 3.4 kg/m2), and active disease stage(64.9% vs. 50.1%);pulmonary involvement(12.4% vs. 26.8%), pulmonary hypertension(12.9% vs. 20.1%) and pulmonary hypertensive-target drugs(2.8% vs. 11.6%) were less common among anemic than non-anemic patients(all P < 0.05). Larger left ventricular end-diastolic diameter and lower left ventricular ejection fraction were observed in anemic patients. Over a median follow-up of four months, the increase of hemoglobin in anemic patients was associated with the use of iron supplementation. Conclusions Anemia is a very common concurrent condition in TA, especially in young, female patients. Patients with anemia are more likely to be in the active disease stage. Iron supplementation helps increase hemoglobin.

关键词： Anemia Disease activity Oral iron supplementation Takayasu arteritis

Vestigial suppresses apoptosis and cell migration in a manner dependent on the level of JNK-Caspase signaling in the Drosophila wing disc

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Insect Science 2021年第1期28卷 63-76页

作者： Wen-min Fan Dan Luo jun-Zheng Zhang Dan Wang Jie Shen Department of Entomology and MOA Lab for Pest Monitoring and Green Control China Agricultural UniversityBeijingChina

The Decapentaplegic(Dpp)and Wingless(Wg)signal pathways play important roles in numerous biological processes in *** Drosophila vestigial(vg)gene is selectively required for wing imaginal disc cell proliferation,which is essential for the formation of the adult wing and halter structures,and is regulated by Dpp and Wg *** a Drosophila invasion model of wing epithelium,we showed herein that inhibition of Dpp or Wg signaling promoted cells to migrate across the cell lineage restrictive anterior/posterior(A/P)compartment *** downstream of both Dpp and Wg signaling,vg can block cell migration induced by loss of either *** addition,suppression of vg is sufficient to induce cell migration across the A/P *** analysis revealed potential downstream genes involved in the cell migration after suppressing vg in the wing *** further demonstrated that the c-jun N-terminal kinase(JNK)signaling promoted cell migration induced by vg suppression by upregulating Caspase *** together,our results revealed the requirement ofVg for suppressing cell migration and clarified how developmental signals collaborate to stabilize cells along the compartment boundary.

关键词： Caspase cell migration Dpp Drosophila wing disc JNK vestigial Wg

数媒时代大学生红色文化沉浸式教育的检视与策略

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白城师范学院学报 2024年第1期38卷 19-28页

作者：张宝君骆文迪吉林师范大学马克思主义学院吉林四平136000

数媒时代,科学技术的颠覆性发展给大学生红色文化沉浸式教育提供了新的场域和技术支撑。按照“互联网+”思维,推进数字技术与红色文化的优势聚合,已成为红色文化承传的时代之需。受观念、技术和能力制约,大学生红色文化教育,还存在资源... 详细信息

数媒时代,科学技术的颠覆性发展给大学生红色文化沉浸式教育提供了新的场域和技术支撑。按照“互联网+”思维,推进数字技术与红色文化的优势聚合,已成为红色文化承传的时代之需。受观念、技术和能力制约,大学生红色文化教育,还存在资源发掘不够、内容创新滞后、协同供给不精等现实困境。强化技术赋能作用,促进红色文化数字化转型,推动红色文化教育创新发展,需要在强化资源挖掘、优化内容供给、构建传播矩阵等层面统筹谋划。

关键词：大学生红色文化沉浸式教育策略

Spatiotemporal Mapping of Salt Marshes in the Intertidal Zone of China during 1985-2019

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Journal of Remote Sensing 2022年第1期2022卷 284-298页

作者： Guangwei Chen Runjie Jin Zhanjiang Ye Qi Li Jiali Gu min Luo Yongming Luo George Christakos James Morris junyu He Dan Li Hengwei Wang Li song Qiuxuan Wang Jiaping Wu Ocean College Zhejiang UniversityZhoushan 316021China Ocean Academy Zhejiang UniversityZhoushan 316021China Institute of Soil Science Chinese Academy of SciencesNanjing 210008China Baruch Institute for Marine&Coastal Sciences University of South CarolinaSC 29208USA

This study mapped the areal extent,identified the species composition,and analyzed the changes of salt marshes in the intertidal zone of China during the period 1985–*** the aid of the cloud platform of the Google Earth Engine,we selected Landsat 5/8 and Sentinel-2 images and used the support vector machine classification method to extract salt marsh information for the years of 1985,1990,1995,2000,2005,2010,2015,and *** major species of salt marshes:Phragmites australis,Suaeda spp.,Spartina alterniflora,Scirpus mariqueter,Tamarix chinensis,Cyperus malaccensis,and Sesuvium portulacastrum were *** results showed that salt marshes are mainly distributed in Liaoning,Shandong,Jiangsu,Shanghai,and Zhejiang,with varying patterns of shrinking,expansion,or wavering in different *** distribution of salt marshes has declined considerably from 151,324 ha in 1985 to 115,397 ha in 2019,a drop of 23.7%.During the same period,the area of native species has dropped 95.4%from 77,741 ha to 3,563 ha for Suaeda *** 45.1%from 60,511 ha to 33,193 ha for ***;on the contrary,the area of exotic species,***,has exhibited a sharp rise from just 99 ha to 67,527 *** the past 35 years,the driving factors causing salt marsh changes are mainly land reclamation,variations in water and sand fluxes,and interspecific competition and succession of salt marsh *** results provide fundamental reference information and could form the scientific basis for formulating policies for the conservation and utilization of salt marsh resources in China.

关键词： driving Zone Mapping

Progress in ceramic materials and structure design toward advanced thermal barrier coatings

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Journal of Advanced Ceramics 2022年第7期11卷 985-1068页

作者： Zhi-Yuan WEI Guo-Hui MENG Lin CHEN Guang-Rong LI Mei-jun LIU Wei-Xu ZHANG Li-Na ZHAO Qiang ZHANG Xiao-Dong ZHANG Chun-Lei WAN Zhi-Xue QU Lin CHEN Jing FENG Ling LIU Hui DONG Ze-Bin BAO Xiao-Feng ZHAO Xiao-Feng ZHANG Lei GUO Liang WANG Bo CHENG Wei-Wei ZHANG Peng-Yun XU Guan-jun YANG Hong-Neng CAI Hong CUI You WANG Fu-Xing YE Zhuang MA Wei PAN min LIU Ke-song ZHOU Chang-Jiu LI State Key Laboratory for Mechanical Behavior of Materials School of Materials Science and EngineeringXi’an Jiaotong UniversityXi’an 710049China State Key Laboratory for Strength and Vibration of Mechanical Structures Department of Engineering MechanicsSchool of Aerospace EngineeringXi’an Jiaotong UniversityXi’an 710049China Xi’an Aerospace Composite Research Institute Xi’an 710025China AECC Beijing Institute of Aeronautical Materials Beijing 100095China School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001China State Key Laboratory of New Ceramics&Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China Faculty of Materials and Manufacturing Key Laboratory of Advanced Functional MaterialsEducation Ministry of ChinaFaculty of Materials and ManufacturingBeijing University of TechnologyBeijing 100124China Faculty of Materials Science and Engineering Kunming University of Science and TechnologyKunming 650093China School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China Xi’an Key Laboratory of High Performance Oil and Gas Field Materials School of Materials Science and EngineeringXi’an Shiyou UniversityXi’an 710065China Shi-Changxu Innovation Center for Advanced Materials Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Shanghai Key Laboratory of Advanced High-temperature Materials and Precision Forming Shanghai Jiao Tong UniversityShanghai 200240China National Engineering Laboratory for Modern Materials Surface Engineering Technology the Key Lab of Guangdong for Modern Surface Engineering TechnologyInstitute of New MaterialsGuangdong Academy of SciencesGuangzhou 510650China School of Materials Science and Engineering Tianjin UniversityTianjin 300072China Integrated Computational Materials Research Centre Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 201899China State Key Laboratory of Advanced Processing and Recycling of

Thermal barrier coatings(TBCs)can effectively protect the alloy substrate of hot components in aeroengines or land-based gas turbines by the thermal insulation and corrosion/erosion resistance of the ceramic top ***,the continuous pursuit of a higher operating temperature leads to degradation,delamination,and premature failure of the top *** new ceramic materials and new coating structures must be developed to meet the demand for future advanced TBC *** this paper,the latest progress of some new ceramic materials is first ***,a comprehensive spalling mechanism of the ceramic top coat is summarized to understand the dependence of lifetime on various factors such as oxidation scale growth,ceramic sintering,erosion,and calcium–magnesium–aluminium–silicate(CMAS)molten salt ***,new structural design methods for high-performance TBCs are discussed from the perspectives of lamellar,columnar,and nanostructure *** latest developments of ceramic top coat will be presented in terms of material selection,structural design,and failure mechanism,and the comprehensive guidance will be provided for the development of next-generation advanced TBCs with higher temperature resistance,better thermal insulation,and longer lifetime.

关键词： thermal barrier coatings(TBCs) ceramic material degradation and failure structure design long lifetime

UPLC-Triple-TOF-MS/MS快速鉴定豨桐制剂的化学成分

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中国现代应用药学 2024年第6期41卷 777-786页

作者：杨宗翰陶冠琪宋文颖张其新徐世芳黄文康叶益萍杭州医学院药学院杭州310013

目的建立超高压液相色谱串联四极杆飞行时间质谱法快速分析抗类风湿性关节炎中药复方豨桐制剂中的化学成分。方法采用ACQUITY UPLC HSS T3(2.1 mm×150 mm,1.8μm)色谱柱,以0.1%甲酸水溶液(A)-0.1%甲酸乙腈(B)作为流动相梯度洗脱,流速为... 详细信息

目的建立超高压液相色谱串联四极杆飞行时间质谱法快速分析抗类风湿性关节炎中药复方豨桐制剂中的化学成分。方法采用ACQUITY UPLC HSS T3(2.1 mm×150 mm,1.8μm)色谱柱,以0.1%甲酸水溶液(A)-0.1%甲酸乙腈(B)作为流动相梯度洗脱,流速为0.3 mL·min^(−1),分别在正离子、负离子模式下进行检测,采用Peakview软件结合药材化合物数据库进行分析;根据获得的精确相对分子量,结合与对照品比对、二级质谱特征碎片以及文献报道确定化学成分。结果推测鉴定了78个化学成分,包括苯丙素类20个,萜类33个,黄酮类19个,脂氧化物6个,其中2个可能为新化合物。结论该方法可以全面快速地鉴定豨桐制剂中的化学成分,为豨桐丸、豨桐胶囊的质量控制和药效物质基础研究提供参考。

关键词：豨桐制剂超高压液相色谱串联四极杆飞行时间质谱法苯丙素萜类黄酮类脂氧化物