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Journal of Rare Earths 2021年第9期39卷 1024-1030页

作者： Chao Gu Yanyun Ding xinghua quan Mengyao Gong Jiulong Yu Dian Zhao Chunxia Li Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Department of ChemistryZhejiang Normal UniversityJinhua 321004China

Self-calibrating luminescent thermometry employing luminescence within the optical transparency windows provides a promising prospect for temperature measurement in the biological *** this work,a new Nd^(3+)/Yb^(3+)-codoped metal-organic framework Nd_(0.95)Yb_(0.05)BPTC showing threedimensional anionic network,obtained by reacting ligand[1,1’-biphenyl]-3,3’,5,5’-tetracarboxylic acid(H4BPTC)with Nd^(3+)and Yb^(3+)ions under solvothermal conditions,is *** 808 nm photoexcitation,Nd_(0.95)Yb_(0.05)BPTC simultaneously emits the characteristic near-infrared luminescence of Nd^(3+)and Yb^(3+)ions based on the efficient energy transfer from Nd^(3+)to Yb^(3+)*** addition,the emission intensity ratio of Yb^(3+)and Nd^(3+)shows good exponential-like response to temperature in the physiological range of 293-323 *** feature properties of Nd_(0.95)Yb_(0.05)BPTC include near-infrared absorption and emission,favorable temperature sensitivity and accurate temperature uncertainty,as well as good chemical stability,making such system useful in biomedical applications.

关键词： Lanthanide metal-organic frameworks Near-infrared luminescence Temperature sensing Energy transfer Rare earths

STATE PRICE BINOMIAL MODEL AND APPLICATION IN VALUE ANALYSIS OF STAGED FINANCING

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STATE PRICE BINOMIAL MODEL AND APPLICATION IN VALUE ANALYSIS...

Effect of Icariin on apoptosis and expression of Fas,Fas ligand,B cell lymphoma,and Bcl-2-associated X protein in CD4＋ T lymphocytes from patients with ankylosing spondylitis

2005年中国机械工程学会年会

作者： DANG xinghua, quan Xiaofeng (School of Business Administration, Xi''an University of Technology, Xi''an, 710048, China)

＜正＞Staged financing is a basic operational form of venture capital. It is of an important means for the venture capitalist and even the development of venture capital industry in China to make scientific decisions. First of all, value structure of staged financing is researched by analyzing option characteristic of staged financing;Next, state price binomial model in project value evaluation is introduced;At last, the application explanation is introduced by analyzing an investment project of venture capital firm.

关键词： venture capital state price investment decision option value

来源： cnki会议评论

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Journal of Traditional Chinese Medicine 2017年第2期37卷 207-213页

作者： Wang Hailong Jiang quan Feng xinghua Division of Rheumatology Guang'anmenHospital China Academy of Chinese Medical Science Beijing 100053 China Basic Medical School Guiyang University of Chinese Medicine Guiyang 550025 China The SecondAffiliated Hospital Guiyang University of Chinese MedicineGuiyang 550003 China Division of Rheurnatology Guang'anrnen Hospital China Academy of Chinese MedicalScience Beijing 100053 China

OBJECTIVE:To investigate the effects of icariin on apoptosis and the expression of Fas, Fas ligand(Fas L), B cell lymphoma(Bcl-2), and Bcl-2-associated X protein(Bax) in CD4+ T lymphocytes from patients with ankylosing ***:Primary cultures of peripheral blood CD4+ T lymphocytes were established and treated with icariin at high, medium, and low doses(0.5,0.25, and 0.125 mg/mL).Sulfasalazine treated and helthy cells were used as *** of treated cells was determined by flow *** transcription polymerase chain reaction and enzyme-linked immunosorbent assays were used to determine the effects of icariin on the expression of Fas, Fas L, Bcl-2, and *** activity of caspase 8 and caspase 3 was determined by a colorimetric ***:The m RNA and protein expression of Fas,and activity of caspase 8 and caspase 3 in CD4+ T lymphocytes were increased by icariin(P < 0.05).Conversely, the m RNA and protein expression of Bcl-2 was decreased(P < 0.05).The expression of Fas L and Bax were not significantly different between *** proapoptotic effects of icariin were ***:Icariin induces the apoptosis of CD4 + T cells from patients with AS comparing to normal ***, the induction of apoptosis may be the likely mechanism of action of icariin's antirheumatics activities.

关键词： Spondylitis ankylosing Fas Fas Ligand protein Lymphoma B-Cell Bcl-2-associated X protein CD4-positive T-lymphocytes Apoptosis Icariin

Key points of investigation and analysis on traffic accidents involving intelligent vehicles

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Transportation Safety and Environment 2021年第4期3卷 46-56页

作者： quan Yuan Yong Peng Xiaodong Xu xinghua Wang State Key Laboratory of Automotive Safety and Energy School of Vehicle and MobilityTsinghua UniversityBeijing 100084China Key Laboratory of Traffic Safety on Track of Ministry of Education School of Traffic and Transportation EngineeringCentral South UniversityChangsha 410075China Fada Institute of Forensic Medicine and Science Beijing 100085China

Intellectualization is regarded as the future mainstream development trend of the automobile *** automation level of intelligent vehicles is relatively low so far,and the road traffic system will be in a mixed state of non-autonomous vehicles and vehicles with different levels of automation for a long ***,the road traffic system will be more complex with more diverse *** paper analysed the characteristics and causal factors of intelligent vehicle *** on the problems existing in investigation,analysis and liability identification of intelligent vehicle accident,the study proposed a preliminary accident investigation framework and method,summarized the key points of accident analysis from the perspectives of technical defects,information security and passive safety,and specified the liability subjects for intelligent vehicle accidents and their corresponding legal *** results from this study contributed to the development of intelligent vehicle accident investigation and disposal,and provided the reference for the improvement of vehicle safety and accident prevention.

关键词： intelligent vehicle accident investigation automated driving liability identification

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离轴三反系统中视轴的偏转误差研究

红外与激光工程 2018年第9期47卷 320-325页

作者：李杏华张冬高凌妤郭倩蕊景泉胡震岳天津大学精密测试技术及仪器国家重点实验室天津300072 北京空间飞行器总体设计部北京100086

考虑到离轴三反系统内部结构和光路的复杂性,直接分析离轴三反系统内部各反射镜的偏转误差对视轴的影响难度较大。因此,提出一种将离轴三反系统模型简化为单反射系统模型来进行分析的方法,并在该模型的基础上建立离轴三反系统视轴偏转... 详细信息

考虑到离轴三反系统内部结构和光路的复杂性,直接分析离轴三反系统内部各反射镜的偏转误差对视轴的影响难度较大。因此,提出一种将离轴三反系统模型简化为单反射系统模型来进行分析的方法,并在该模型的基础上建立离轴三反系统视轴偏转误差的计算公式。最后,利用Zemax软件创建离轴三反系统模型,通过变动反射镜位置来模拟系统视轴的变化,并得到成像点的坐标,再将得到的像点坐标代入计算公式求解出系统视轴的转动量。通过结果对比,求解出视轴的转动量相对于仿真的最大误差不超过4%,验证了基于单反射模型建立的理论分析方法的正确性。

关键词：离轴三反系统视轴误差偏转

双节流阀组合调速回路负载特性分析及实验研究

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机床与液压 2016年第22期44卷 62-66,75页

作者：裴杰高兴华全继花北华大学机械工程学院吉林132021 中国石油吉林石化公司电石厂吉林132021

为解决传统的节流阀式节流调速回路的负载特性不足的问题,探索双节流阀组合调速模式,设计了双节流阀组合调速模块,对不同的双节流阀组合负载特性进行了理论计算,优化了调速回路的负载特性;同时,搭建了双节流阀组合实验平台,测试基于不... 详细信息

为解决传统的节流阀式节流调速回路的负载特性不足的问题,探索双节流阀组合调速模式,设计了双节流阀组合调速模块,对不同的双节流阀组合负载特性进行了理论计算,优化了调速回路的负载特性;同时,搭建了双节流阀组合实验平台,测试基于不同负载的两个节流阀节流面积任意组合时的油缸速度,利用MATLAB对实验数据进行分析,得到双节流阀组合的负载特性曲线,验证了双节流阀组合实验负载特性与理论分析相符。

关键词：双节流阀组合调速负载特性

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人工结构体控制堰塞湖溃决洪峰的试验与设计

西南交通大学学报 2011年第2期46卷 228-234页

作者：陈晓清赵万玉高全贾世涛朱兴华中国科学院山地灾害与地表过程重点实验室四川成都610041 中国科学院水利部成都山地灾害与环境研究所四川成都610041 西南交通大学土木工程学院四川成都610031

为检验人工结构体对堰塞湖溃决洪峰流量的调控作用,进行了室内水槽模型试验.试验主要针对四面体实体结构、四面体实体结构串、四面体实心框架结构和四面体实心框架结构串.试验结果表明：抛投人工结构体对堰塞湖溃决后期洪峰流量的控制... 详细信息

为检验人工结构体对堰塞湖溃决洪峰流量的调控作用,进行了室内水槽模型试验.试验主要针对四面体实体结构、四面体实体结构串、四面体实心框架结构和四面体实心框架结构串.试验结果表明：抛投人工结构体对堰塞湖溃决后期洪峰流量的控制作用非常显著,与未抛投人工结构体相比,4组抛投人工结构体的洪峰流量减小26.6%~61.7%;人工结构体的优选型式依次为四面体实心框架结构串、四面体实体结构串、四面体实心框架结构和四面体实体结构;增大人工结构体的容重能改善堰塞湖溃决洪峰流量的调控效果.

关键词：堰塞湖溃决人工结构体流量调控

丝束同轴束源模式对电子束熔丝增材制造TC11钛合金组织及力学性能的影响

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稀有金属材料与工程 2024年第10期53卷 2941-2951页

作者：王壮权银洙石毅磊桑兴华许海鹰杨光杨波齐铂金中国航空制造技术研究院北京100024 北京航空航天大学机械工程及自动化学院北京100191 中国人民解放军93160部队北京100076 南京理工大学材料科学与工程学院江苏南京210094

粗柱状β晶粒中存在的针状α'马氏体是电子束熔丝增材制造(EBAM)TC11钛合金较差延展性的主要原因。为实现高强韧TC11钛合金的工程制造,采用丝束同轴电子束熔丝增材制造(C-EBAM),通过提升EBAM过程中电子束、丝材以及基材相互作用状态,改... 详细信息

粗柱状β晶粒中存在的针状α'马氏体是电子束熔丝增材制造(EBAM)TC11钛合金较差延展性的主要原因。为实现高强韧TC11钛合金的工程制造,采用丝束同轴电子束熔丝增材制造(C-EBAM),通过提升EBAM过程中电子束、丝材以及基材相互作用状态,改善了熔池热分布。进一步从组织结构、晶粒形貌以及力学性能等方面对EBAM与C-EBAM试样进行了详细比较。讨论了两者丝材过渡状态对工艺稳定性的影响、马氏体相变过程以及拉伸性能差异性与各向异性的原因。结果表明:C-EBAM试样在较低的冷却速率下,从β相场缓慢冷却的途径和原位马氏体分解获得了强韧层状α+β微观结构,Al元素几乎无蒸发。与EBAM试样相比,C-EBAM试样中沉积方向塑性的提高可归因于双层微观结构、不连续α相晶界。这为进一步优化束源特性指明了方向。

关键词：电子束熔丝增材制造丝束同轴 TC11钛合金显微组织力学性能

基于PT4115驱动的高精度数字LED星等模拟器

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应用光学 2016年第2期37卷 276-280页

作者：高兴华李建永全继花赵昆明覃正梅北华大学吉林吉林132013 吉林石化公司吉林吉林1320213 上海新宇箴诚电控科技有限公司上海201802

依据地面设备标定的需要,介绍了一种高精度、有限空间、全光谱的星等模拟器实现方法。该星等模拟器的光学系统结构采用紧凑结构空间设计,其控制采用脉宽调制(PWM)技术,应用白光XLamp LED作为光源,并以PT4115作驱动,实现了对LED光照强度... 详细信息

依据地面设备标定的需要,介绍了一种高精度、有限空间、全光谱的星等模拟器实现方法。该星等模拟器的光学系统结构采用紧凑结构空间设计,其控制采用脉宽调制(PWM)技术,应用白光XLamp LED作为光源,并以PT4115作驱动,实现了对LED光照强度在640lx^1.0lx范围内数字化任意调整。所设计的星等模拟器与传统模拟调节的星等模拟器相比,该星等模拟器具有体积小、热量低、稳定性高等特点。通过在暗室环境中进行应用验证,分析和测试结果表明:该星等模拟器可实现0m^7m等星控制,光谱范围覆盖整个可见光,星等的控制精度高达±0.1m。

关键词：星等模拟器星敏感器 PT4115驱动 LED光源

Versatile quantum microwave photonic signal processing platform based on coincidence window selection technique

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Advanced Photonics Nexus 2024年第5期3卷 130-139页

作者： xinghua Li Yifan Guo Xiao Xiang Runai quan Mingtao Cao Ruifang Dong Tao Liu Ming Li Shougang Zhang Chinese Academy of Sciences National Time Service CenterKey Laboratory of Time Reference and ApplicationsXi’anChina University of Chinese Academy of Sciences School of Astronomy and Space ScienceBeijingChina Hefei National Laboratory HefeiChina Chinese Academy of Sciences Institute of SemiconductorsState Key Laboratory on Integrated OptoelectronicsBeijingChina University of Chinese Academy of Sciences School of ElectronicElectrical and Communication EngineeringBeijingChina University of Chinese Academy of Sciences Center of Materials Science and Optoelectronics EngineeringBeijingChina

quantum microwave photonics(QMWP)is an innovative approach that combines energy-time entangled biphoton sources as the optical carrier with time-correlated single-photon detection for highspeed radio frequency(RF)signal *** groundbreaking method offers unique advantages,such as nonlocal RF signal encoding and robust resistance to dispersion-induced frequency *** explore the versatility of processing the quantum microwave photonic signal by utilizing coincidence window selection on the biphoton coincidence *** demonstration includes finely tunable RF phase shifting,flexible multitap transversal filtering(with up to 14 taps),and photonically implemented RF mixing,leveraging the nonlocal RF mapping characteristic of *** accomplishments significantly enhance the capability of microwave photonic systems in processing ultraweak signals,opening up new possibilities for various applications.

关键词： microwave photonics quantum entanglement source window postselection