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全天候高均匀性光环境照明系统设计

计量学报 2024年第6期45卷 777-785页

作者：郑国庆钟虎根汪雨晴占春连中国计量大学光学与电子科技学院浙江杭州310018 航空工业昌河飞机工业有限公司江西景德镇333001

为解决飞机座舱人机工效实验所需的座舱外全天候高均匀性光环境模拟问题,对光源模组发光机理与照度叠加原理进行了研究。建立了大面积LED环境光照系统光照数学模型,通过测试计算和仿真设计分析设计了大面积、高均匀性、快速可调的全天... 详细信息

为解决飞机座舱人机工效实验所需的座舱外全天候高均匀性光环境模拟问题,对光源模组发光机理与照度叠加原理进行了研究。建立了大面积LED环境光照系统光照数学模型,通过测试计算和仿真设计分析设计了大面积、高均匀性、快速可调的全天候光环境照明系统,并对供电电流、光源发光角、光源排布等因素进行了分析。当光源分布确定后,光环境照明系统的均匀性主要取决于供电稳定性和一致性,系统的供电稳定性与一致性越高则照度的均匀性也越高,系统的光照度取决于系统电功率的大小,系统电功率越大,则光照度越强;当光源的供电功率确定后,照度的均匀性和动态范围取决光源的数量和分布,光源发光角以及光源排布间距越小则照度的动态范围越小,照度的均匀性越高。搭建一套10 m×10 m的大面积光环境模拟系统,该系统照度从正午1.5×10^(5) lx到夜晚星光0.01 lx的8个数量级大范围可调,3 000~6 500 K全天候色温范围可调,照度均匀性超过95%。实验结果表明该系统满足飞机座舱外所需的大面积高强度、高均匀性的光环境模拟系统的设计要求。

关键词：光学计量照明光环境照度均匀性照度叠加模拟退火算法

The Origin of The Soft X-Ray Excess in the Seyfert 1.5 Galaxy ESO 362-G18

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Research in Astronomy and Astrophysics 2022年第3期22卷 10-32页

作者： Xiao-Gu zhong Jian-Cheng Wang Yunnan Observatories Chinese Academy of SciencesKunming 650216China Key Laboratory for the Structure and Evolution of Celestial Objects Chinese Academy of SciencesKunming 650216China University of Chinese Academy of Sciences Beijing 100049China

We review the Seyfert 1.5 Galaxy ESO 362-G18 for exploring the origin of the soft X-ray *** Warm Corona and Relativistic Reflection models are two main scenarios to interpret the soft X-ray excess in active galactic nuclei at *** use the simultaneous X-ray observation data of XMM-Newton and Nu STAR on2016 September 24 to perform spectral analysis in two ***,we analyze the time-average spectra by using Warm Corona and Relativistic Reflection ***,we also explore the Hybrid model,Double Reflection model and Double Warm Corona *** find that both the Warm Corona and Relativistic Reflection models can interpret the time-average spectra well but cannot be distinguished easily based on the time-averaged spectra fit ***,we add the rms and covariance spectra to perform the spectral analysis with time-average *** result shows that the warm corona could reproduce all of these spectra *** hot,optical thin corona and neutral distant reflection will increase their contribution with the temporal frequency,meaning that the corona responsible for X-ray continuum comes from the inner compact X-ray region and the neutral distant reflection is made of some moderate scale neutral clumps.

关键词： galaxies:active galaxies:individual(ESO 362-G18) galaxies:Seyfert

肺动脉高压患者307例中医证型分布规律及与临床指标相关性

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中华中医药杂志 2024年第7期39卷 3843-3847页

作者：钟秀君方漫兮姜蓉臧娜王岚汤杰上海中医药大学附属岳阳中西医结合医院呼吸科上海200437 上海中医药大学岳阳临床医学院上海200437 上海市肺科医院肺循环科上海200433

目的:探讨307例肺动脉高压(PH)患者的中医证型分布及与临床指标的相关性,初步推测各证型的预后。方法:选取2021年1月至2022年2月于上海市肺科医院肺循环科住院的PH患者307例,总结中医证型分布特点,分析证型与临床指标的相关性,推测预后... 详细信息

目的:探讨307例肺动脉高压(PH)患者的中医证型分布及与临床指标的相关性,初步推测各证型的预后。方法:选取2021年1月至2022年2月于上海市肺科医院肺循环科住院的PH患者307例,总结中医证型分布特点,分析证型与临床指标的相关性,推测预后。结果:307例PH患者中医证型频次从高到低依次为气虚血瘀证[28.99%(89/307)]、气阴两虚证[19.54%(60/307)]、痰瘀阻肺证[14.01%(43/307)]、阳虚水泛证[9.77%(30/307)]和肺肾气虚证[9.77%(30/307)]、心肾阳虚证[7.17%(22/307)]、气滞心胸证[4.23%(13/307)]、肺脾两虚证[3.26%(10/307)]、痰热郁肺证[2.28%(7/307)]、脾肾阳虚证[0.98%(3/307)]。痰热郁肺证mPAP、PVR、TNT低而TAPSE高提示预后较好;痰瘀阻肺证mPAP、PVR高;阳虚水泛证RATD、TNT高而TAPSE、6MWD低,提示这两证型预后不佳。结论:PH患者中医证型与临床相关指标存在相关性,痰热郁肺证预后可能较好,痰瘀阻肺证、阳虚水泛证预后可能较差。

关键词：肺动脉高压中医证型临床指标预后相关性

Switchable vortex beam polarization state terahertz multi-layer metasurface

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Chinese Physics B 2022年第11期31卷 309-315页

作者：仲敏李九生 Center for THz Research China Jiliang UniversityHangzhou 310018China

We propose a switchable vortex beam polarization state terahertz multi-layer metasurface,which consists of threelayer elliptical metal crosses,four-layer dielectrics,and two-layer hollow metal circles,which are alternately *** the normal incidence of left-handed circularly polarized(LCP)wave and the right-handed circularly polarized(RCP)waves,the proposed structure realizes three independent control functions,i.e.,focused and vortex beam,vortex beam with different topological charges,and polarization states switching,and azimuth switching of two vortex beams with different polarization *** results show that the proposed metasurface provides a new idea for investigating the multifunctional terahertz wave modulation devices.

关键词： terahertz wave switchable vortex beam polarization states flexible manipulation

Speckle-tracking echocardiography for detecting myocardial dysfunction in sepsis and septic shock patients:A single emergency department study

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World Journal of Emergency Medicine 2022年第3期13卷 175-181页

作者： Xuan Fu Xue Lin Samuel Seery Li-na Zhao Hua-dong Zhu Jun Xu Xue-zhong Yu Emergency Department State Key Laboratory of Complex Severe and Rare DiseasesPeking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijing 100730China Department of Cardiology Peking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100730China Faculty of Health and Medicine Division of Health ResearchLancaster UniversityLancaster LAI 4YWUnited Kingdom

BACKGROUND:Septic cardiomyopathy(SCM)occurs in the early stage of sepsis and septic shock,which has implications for treatment strategies and ***,myocardial involvement in the early stages of sepsis is difficult to ***,we assess subclinical myocardial function using laboratory tests and speckle-tracking echocardiography(STE).METHODS:Emergency department patients diagnosed with sepsis or septic shock were included for *** with other causes of acute or pre-existing cardiac dysfunction were *** echocardiography(TTE),including conventional echocardiography and STE,were performed for all patients three hours after initial *** for laboratory tests were taken around the time of ***:Left ventricular functions of 60 patients were analyzed,including 21 septic shock patients and 39 sepsis *** was no significant difference in global longitudinal strain(GLS),global circumferential strain(GCS),or global radical strain(GRS)between patients with sepsis and septic shock(all with P>0.05).However,GLS and GCS were significantly less negative in patients with abnormal troponin levels or in patients with abnormal left ventricular ejection fraction(LVEF)values(all with P<0.05).There were also moderate correlations between GLS and levels of cTnI(r=0.40,P=0.002)or N-terminal pro-B-type natriuretic peptide(NT-proBNP)(r=0.44,P=0.001)in sepsis and septic shock ***:Myocardial dysfunction,e.g.,lower LVEF or less negative GLS in patients with sepsis or septic shock,is more affected by myocardial *** could be incorporated into mainstream clinical practice as a supplementary LVEF parameter,especially for those with elevated troponin levels.

关键词： Sepsis Septic shock Speckle-tracking echocardiography Global longitudinal strain Global circumferential strain

腹针配合左升右降微针调气法治疗抑郁症的临床观察

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广州中医药大学学报 2024年第1期41卷 135-140页

作者：叶清华徐林新种茵张晓阳广州中医药大学广东广州510006

【目的】观察腹针配合左升右降微针调气法治疗抑郁症的临床疗效。【方法】将60例抑郁症患者随机分为观察组和对照组,每组各30例。观察组给予腹针联合左升右降微针调气法治疗,对照组给予盐酸舍曲林片治疗。共治疗6周。治疗6周后,评价2组... 详细信息

【目的】观察腹针配合左升右降微针调气法治疗抑郁症的临床疗效。【方法】将60例抑郁症患者随机分为观察组和对照组,每组各30例。观察组给予腹针联合左升右降微针调气法治疗,对照组给予盐酸舍曲林片治疗。共治疗6周。治疗6周后,评价2组临床疗效,观察2组患者治疗前后汉密尔顿抑郁量表(HAMD)评分的变化情况,以及抑郁自评量表(SAS)评分的情况。并评价2组的安全性及不良反应的发生情况。【结果】(1)治疗后,2组患者的HAMD评分明显改善(P0.05)。【结论】腹针配合左升右降微针调气法治疗抑郁症,可以明显改善患者的临床症状,疗效显著。

关键词：腹针左升右降微针调气法抑郁症汉密尔顿抑郁量表抑郁自评量表临床观察

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彭培初分期辨治前列腺癌经验

中医杂志 2024年第7期65卷 678-683页

作者：徐新宇彭煜朱文静翟靖盛东亚王名杨邵轶群李博洋钟琪彭培初(指导) 上海中医药大学附属岳阳中西医结合医院上海市200437

总结彭培初教授分三期四阶段辨治前列腺癌的临证经验。认为前列腺癌属本虚标实证,以正气亏虚为本、癌毒蕴积为标。临证根据前列腺癌发生发展过程中的邪正盛衰状态及阴阳虚实变化分三期四阶段进行辨治。癌毒初结期(阳实阶段)以湿热瘀血... 详细信息

总结彭培初教授分三期四阶段辨治前列腺癌的临证经验。认为前列腺癌属本虚标实证,以正气亏虚为本、癌毒蕴积为标。临证根据前列腺癌发生发展过程中的邪正盛衰状态及阴阳虚实变化分三期四阶段进行辨治。癌毒初结期(阳实阶段)以湿热瘀血蕴积、癌毒内生为关键病机,治宜解毒抗癌祛阳实;正虚毒蕴期(阴虚阶段)以肺肾阴虚、湿热瘀毒蕴积为关键病机,治宜金水相生滋肾阴为主,兼用清热利湿、活血解毒,常用自拟南北方;阳虚寒滞期(阳虚、阴实阶段)以脾肾阳虚、寒湿凝滞、瘀热毒蕴为关键病机,治宜温补脾肾散寒结,阴阳两虚、实邪阻滞者用阳和汤加减,阳虚、寒凝血瘀者用自拟温肾散结方,寒湿胶结癌毒、寒热错杂者用自拟泉安方。

关键词：前列腺癌分期辨治名医经验彭培初

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山地灾害大尺度动力学模拟实验平台

中国科学院院刊 2024年第8期39卷 1458-1467,F0004页

作者：周公旦崔鹏吴宏伟游勇钟卫宋东日周垂一沈宏伟尚明生张学睿中国科学院、水利部成都山地灾害与环境研究所成都610029 香港科技大学中国香港999077 中国电建集团华东勘测设计研究院有限公司杭州310014 中国科学院重庆绿色智能技术研究院重庆400714

山地灾害体是复杂颗粒物质和流体所组成的多相介质。山地灾害物理模拟的尺度效应和相似性问题是关系颗粒物质动力学和防灾减灾研究的核心难题。在中国科学院野外站网络重点科技基础设施建设项目的支持下,中国科学院东川泥石流观测研究... 详细信息

山地灾害体是复杂颗粒物质和流体所组成的多相介质。山地灾害物理模拟的尺度效应和相似性问题是关系颗粒物质动力学和防灾减灾研究的核心难题。在中国科学院野外站网络重点科技基础设施建设项目的支持下,中国科学院东川泥石流观测研究站、云南东川泥石流国家野外科学观测研究站于2024年在昆明市东川区蒋家沟建成了山地灾害大尺度动力学模拟实验平台(LEADS平台),这是全世界山地灾害物理模拟规模最大、自动化监测程度最高、系统数据采集同步性最佳的实验平台。LEADS平台充分满足山地灾害多相介质模拟的相似性准则、准确反映复杂介质的动力演化机制和防治工程体的调控机理、可以有效地指导工程设计,是我国减灾领域的国之重器,将成为山地灾害动力学研究和新型防治工程结构研发、测试、推广的实验示范基地。

关键词：山地灾害实验平台物理模拟大尺度动力过程

MECHANICAL PERFORMANCE OF NANO-CaCO_3 FILLED POLYSTYRENE COMPOSITES

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Acta Mechanica Solida Sinica 2009年第6期22卷 555-562页

作者： Yun Gao Luqi Liu zhong Zhang National Center for Nanoscience and Technology Beijing 100190 China

Nano-CaCO3 incorporated polystyrene composites are compounded by twin-screw extrusion. Tensile and compact tensile tests show that the strength and toughness of polystyrene are decreased after the addition of nano-CaCO3 particles. Fracture surface analysis suggests that the defects induced by interfacial debonding and nano-filler agglomerations would be the key factors responsible for the declined strength and toughness. Nevertheless, it has to be stated, if the applied stress is lower than the ultimate strength, the rigid nanoparticles would still stiffen the polymer molecules, and resist polymer chain mobility. Hence, the improved tensile modulus and creep resistance can be obtained with the increasing contents of nanoparticles.

关键词： nanocomposites nanoparticles polymers mechanical properties debonding