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Study of Steering Mobility of Multi-axle Vehicles with Steer-by-brake System

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Study of Steering Mobility of Multi-axle Vehicles with Steer...

Severe human infection with a novel avian-origin influenza A(H7N4) virus

2020中国汽车工程学会年会暨展览会

作者： Li Zechao Sun Yishan Wu Zhicheng Ren Hongbin Zhao Yuzhuang gao Zepeng Chen Yong Zhang ruiqi Automotive Research Institute Beijing Institute of Technology

Steering radius of multi-axle vehicle is larger,speed is lower and steering mobility is worse than normal *** multi-axle vehicles with steer-by-brake system,when inner wheels of rear two axles are braked and driving torque of other wheels increases,steering radius decreases and mobility is *** analysis of established vehicle model,effects of different initial speeds,front-wheel steering angles and driving modes on steady speed,yaw angular velocity and steering radius is obtained *** results show that vehicle speed,yaw angular velocity and steering radius may be impacted by slip phenomenon with increase of driving torque when initial speed is *** change stages of wheels slip ratio during simulation process and their reason are *** steering angle increases,stable speed decreases,yaw velocity increases,steering radius decreases,and time required to reach the stable state *** driving mode is the same driving torque for six wheels or different driving torque for inner and outer wheels,steering radius is obviously smaller than driving mode with different driving torque for front and rear axles.

关键词： steering mobility steering radius vehicles with wheel motor driving mode

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Science Bulletin 2018年第16期63卷 1043-1050页

作者： Xiang Huo Lun-biao Cui Cong Chen Dayan Wang Xian Qi Ming-hao Zhou Xiling Guo Fengming Wang William J. Liu Weirong Kong Daxin Ni Ying Chi Yiyue Ge Haodi Huang Feifei Hu Chao Li Xiang Zhao ruiqi Ren Chang-jun Bao George F. gao Feng-Cai Zhu Key Laboratories of Enteric Pathogenic Microbiology (Ministry of Health) Jiangsu Provincial Center for Disease Control and Prevention. Nanjing 210009 China Chinese Center for Disease Control and Prevention (China CDC) Beijing 102206 China National Institute for Viral Disease Control and Prevention China CDC Beijing 102206 China Changzhou Center for Disease Control and Prevention Changzhou 213022 China Liyang Center for Disease Control and Prevention Liyang 213300 China CAS Key Laboratory of Pathogenic Microbiology and Immunology Institute of Microbiology Chinese Academy of Sciences (CA5) Beijing 100101 China Center for Influenza Research and Early-Warning (CASCIRE) Chinese Academy of Sciences Beijing 100101 China Key Laboratory of Infectious Diseases School of Public Health Nanjing Medical University Nanjing 211166 China

Human infections with influenza H7 subtypes, such as H7Ng, have raised concerns worldwide. Here, we report a human infection with a novel influenza A（HTN4） virus. A 68 years-old woman with cardiovascular and cholecystic comorbidities developed rapidly progressed pneumonia with influenza-like-illness as initial symptom, recovered after 23 days-hospitalization including 8 days in ICLI. Laboratory indicators for liver and blood coagulation dysfunction were observed. Oseltamivir phosphate, glucocorticoids and antibiotics were jointly implemented, with nasal catheterization of oxygen inhalation for this patient. We obtained the medical records and collected serial respiratory and blood specimens from her. We col- lected throat, cloacal and/or feces samples of poultry and wild birds from the patient＇s backyard, neigh- borhood, local live poultry markets （LPMs） and the nearest lake. All close contacts of the patient were followed up and sampled with throat swabs and sera. Influenza viruses and other respiratory pathogens were tested by real-time RT-PCR, viral culturing and/or sequencing for human respiratory and bird sam- ples. Micro-neutralizing assay was performed for sera. A novel reassortant wild bird-origin H7N4 virus is identified from the patient and her backyard poultry （chickens and ducks） by sequencing, which is dis- tinct from previously-reported avian H7N4 and H7N9 viruses. At least four folds increase of neutralizing antibodies to H7N4 was detected in her convalescent sera. No samples from close contacts, wild birds or other poultry were tested positive for H7N4 by real-time RT-PCR.

关键词： Avian influenza virus (AIV) Human infection HTN4 Epidemiology Pneumonia

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武术及其相关概念梳理

体育文化导刊 2007年第2期 48-50页

作者：高亮朱瑞琪北京体育大学

运用文献资料法、专家访谈法对武术及其相关概念——功夫、国术进行梳理与分析,结果认为当前对武术的概念认识基本达成共识;对功夫的概念理解仁者见仁,智者见智,莫衷一是;对国术的概念是特定历史时期的产物,弊端诸多。在武术走向世界的... 详细信息

运用文献资料法、专家访谈法对武术及其相关概念——功夫、国术进行梳理与分析,结果认为当前对武术的概念认识基本达成共识;对功夫的概念理解仁者见仁,智者见智,莫衷一是;对国术的概念是特定历史时期的产物,弊端诸多。在武术走向世界的今天,武术应该成为国际统一的术语,结束与功夫、国术概念的混用现象。

关键词：武术功夫国术文献资料法

Pm21 from Haynaldia villosa Encodes a CC-NBS- LRR Protein Conferring Powdery Mildew Resistance in Wheat

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Molecular Plant 2018年第6期11卷 874-878页

作者： Liping Xing Ping Hu Jiaqian Liu Kamil Witek Shuang Zhou Jiefei Xu Weihao Zhou Li gao Zhenpu Huang ruiqi Zhang Xiue Wang Peidu Chen Haiyan Wang Jonathan D.G. Jones Miroslava Karafiatova Jan Vrana Jan Baros Jaroslav Dolezel Yuanchun Tian Yufeng Wu Aizhong Cao National Key Laboratory of Crop Genetics and Germplasm Enhancement Cytogenetics Institute Nanjing Agricultural University/JGIC-MCP Nanjing 210095 China The Sainsbury Laboratory Norwich Research Park Norwich NR4 7UH UK Institute of Experimental Botany Centre of the Region Hana for Biotechnological and Agricultural Research Slechtitelu 31 78371 OlomoucCzech Republic

Dear Editor Wheat powdery mildew, caused by Blumeria graminis f. sp. tritici （Bgt）, is a destructive disease of wheat throughout the world. One of the most important environmental-friendly and economical methods to reduce wheat loss caused by Bgt is to develop highly resistant varieties （Kuraparthy et al., 2007）. Pm21 from the wild species Haynaldia villosa （also known as Dasypyrum villosum） confers high resistance to Bgt in wheat throughout all growth stages. It has now become one of the most highly effective genetic loci introgressed into wheat from wild species, and the commercial varieties harboring Pm21 have been widely used in wheat production with more than 4 million hectares in China.

关键词： Pm21 小麦粉蛋白质编码环境友好生长阶段小麦生产还原剂

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抗MDA5抗体阳性临床无肌病性皮肌炎1例

中国皮肤性病学杂志 2024年第6期38卷 685-687页

作者：曹瑞琪高凯乐段妍内蒙古医科大学研究生学院内蒙古呼和浩特010110 内蒙古自治区人民医院内蒙古呼和浩特010017

患者女,56岁,左上睑红肿3个月,胸闷、气短3 d。特发性炎性肌炎谱示:抗MDA5抗体IgG(3+),抗Ro-52抗体IgG(+);胸部CT提示两肺间质性改变及感染。诊断:临床无肌病性皮肌炎,间质性肺炎,骨质疏松,胃多发溃疡,慢性萎缩性胃炎。患者口服甲泼尼... 详细信息

患者女,56岁,左上睑红肿3个月,胸闷、气短3 d。特发性炎性肌炎谱示:抗MDA5抗体IgG(3+),抗Ro-52抗体IgG(+);胸部CT提示两肺间质性改变及感染。诊断:临床无肌病性皮肌炎,间质性肺炎,骨质疏松,胃多发溃疡,慢性萎缩性胃炎。患者口服甲泼尼龙联合巴瑞替尼1个月后改为醋酸泼尼松龙联合环孢素A,治疗8个月后抗MDA5抗体IgG转阴。

关键词：皮疹抗MDA5抗体临床无肌病性皮肌炎

基于金纳米颗粒修饰二氧化硅纳米花的生物传感器构建及应用

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化工学报 2023年第3期74卷 1247-1259页

作者：刘瑞琪周栖桐张悦贺莹高静马丽河北工业大学化工学院天津300401

利用褶皱状二氧化硅纳米花(SiO_(2)NFs),通过原位还原法制备分散的金纳米颗粒修饰的氨基二氧化硅复合材料(Au@NH_(2)-SiO_(2)NFs)。利用扫描电镜(SEM)、透射电镜(TEM)、X射线光电子能谱(XPS)、X射线衍射(XRD)、傅里叶红外光谱仪(FT-IR)... 详细信息

利用褶皱状二氧化硅纳米花(SiO_(2)NFs),通过原位还原法制备分散的金纳米颗粒修饰的氨基二氧化硅复合材料(Au@NH_(2)-SiO_(2)NFs)。利用扫描电镜(SEM)、透射电镜(TEM)、X射线光电子能谱(XPS)、X射线衍射(XRD)、傅里叶红外光谱仪(FT-IR)和元素分析(elemental mapping)对Au@NH_(2)-SiO_(2)NFs纳米材料进行表征。基于Au@NH_(2)-SiO_(2)NFs构建AChE/Au@NH_(2)-SiO_(2)NFs/GCE生物传感器。选择马拉硫磷和毒死蜱两种有机磷农药为代表,考察生物传感器的检测性能,其中马拉硫磷的检测范围是(1.00×10^(-11))~(1.00×10^(-5))mol/L,检测限为2.92×10^(-12)mol/L;毒死蜱的检测范围是(1.00×10^(-13))~(1.00×10^(-7))mol/L,检测限为5.60×10^(-14)mol/L。AChE/Au@NH_(2)-SiO_(2)NFs/GCE电极在实际样品检测中的回收率在90.7%~107.0%之间,并展现出良好的抗干扰性、储藏稳定性和重现性。

关键词：乙酰胆碱酯酶复合材料生物传感器电化学有机磷农药

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亚谵妄综合征的概念内涵及研究进展

中华护理杂志 2021年第12期56卷 1883-1888页

作者：高燕甘秀妮杨睿琦张传来重庆医科大学附属第二医院护理部重庆市400010

目的运用Rodgers演化概念分析法诠释亚谵妄综合征的概念及内涵。方法系统检索中国知网、万方、维普、中国生物医学文献服务系统、PubMed、Web of Science、CINAHL、Embase和PsycINFO数据库,检索时限从建库至2021年5月,最终纳入文献32篇... 详细信息

目的运用Rodgers演化概念分析法诠释亚谵妄综合征的概念及内涵。方法系统检索中国知网、万方、维普、中国生物医学文献服务系统、PubMed、Web of Science、CINAHL、Embase和PsycINFO数据库,检索时限从建库至2021年5月,最终纳入文献32篇。应用Rodgers概念分析框架,从亚谵妄综合征概念的起源、概念属性、先决条件、影响因素、结局等方面对亚谵妄综合征的相关内容进行分析、整合。结果亚谵妄综合征包括一种精神认知疾病、谵妄的不完全状态、动态波动过程、易被临床忽视和漏诊4个概念属性,其先决条件可从内因(个人机体因素、心理因素)和外因(环境因素、药物因素)进行讨论。亚谵妄综合征发生后会影响患者认知水平及远期生活质量,增加患者病死率。结论目前,对于亚谵妄综合征的研究还不够深入,其概念及诊断标准仍未形成定论,未来应进一步对亚谵妄综合征进行深层次、多方位的探索。

关键词：亚谵妄综合征概念分析谵妄护理

金刚石工具加工SiO_(2)f/SiO_(2)复合材料的可行性研究

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金刚石与磨料磨具工程 2023年第1期43卷 75-81页

作者：高航李睿祺许启灏兰宝华大连理工大学机械工程学院辽宁大连116000

针对石英纤维增强陶瓷基复合材料(SiO_(2)f/SiO_(2))制造的薄壁壳体零件加工过程中存在加工效率低、切削力较大易导致零件破裂和加工表面粗糙度不易达到要求等问题,为寻求零件可行的加工刀具和工艺参数,在阐述微刃切削原理基础上,用其... 详细信息

针对石英纤维增强陶瓷基复合材料(SiO_(2)f/SiO_(2))制造的薄壁壳体零件加工过程中存在加工效率低、切削力较大易导致零件破裂和加工表面粗糙度不易达到要求等问题,为寻求零件可行的加工刀具和工艺参数,在阐述微刃切削原理基础上,用其研制的整体多刃PCD刀具和电镀金刚石磨头,开展金刚石工具加工SiO_(2)f/SiO_(2)复合材料的可行性研究。结果表明:采用基于微刃切削原理设计的整体多刃PCD刀具加工SiO_(2)f/SiO_(2),因刀具锋利和多刃特点可以实现较大的切深并获得较大的切削效率,但是切削力相对较大;相比于整体多刃PCD刀具,电镀金刚石磨头加工SiO_(2)f/SiO_(2)时切削力较小,加工后工件表面质量较好,且其表面粗糙度较低.

关键词： SiO_(2)f/SiO_(2) 切削力表面粗糙度表面质量

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机载冷源参数对蒸发循环系统性能的影响

化工学报 2020年第S01期71卷 212-219页

作者：王瑞琪高赞军杨华胡文超詹宏波中国航空工业金城南京机电液压工程研究中心江苏南京211106 航空机电系统综合航空科技重点实验室江苏南京211106

为了深入研究机载蒸发循环系统的工作特性及为搭建仿真计算模型做准备,基于试验室已有设备和条件,以一台新型微通道换热器作为研究对象,以R134a为工质,通过控制压缩机转速和电子膨胀阀开度一定,分别调节冷源温度和流量,考察冷源温度和... 详细信息

为了深入研究机载蒸发循环系统的工作特性及为搭建仿真计算模型做准备,基于试验室已有设备和条件,以一台新型微通道换热器作为研究对象,以R134a为工质,通过控制压缩机转速和电子膨胀阀开度一定,分别调节冷源温度和流量,考察冷源温度和流量对压缩机入口过热度、热源出口温度和制冷量的影响,并基于试验数据搭建了针对该蒸发器的仿真计算模型。试验结果表明在试验工况下,冷源防冻液入口温度对系统性能的影响明显,随冷源入口温度升高,压缩机入口过热度逐渐降低、热源出口温度明显升高,但冷源流量对系统性能的影响不显著。基于试验数据,建立了蒸发器仿真计算模型,将该模型应用于蒸发循环系统模型中,对比试验数据和仿真计算数据,可知,该蒸发器仿真计算模型准确可靠,可用于针对该蒸发器的性能仿真计算。

关键词：机载系统蒸发循环制冷蒸发传热微通道冷源参数仿真