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双语推荐：CRH3

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本文在CRH3型车的基础上开发了一款应用于普通计算机上的演示界面,通过这个Demo可以让大家利用普通计算机了解CRH3型车人机界面的各种功能。除了界面上本身应有的信息之外,还模拟了司机控制台的部分功能,以便使人们更清晰的了解CRH3型车的控车原理。
Based on CRH3 , a demonstration interface was designed . From this Demo everybody could understand the function of the man-machine interface of CRH3 through ordinary computers . It also has simulated partial functions of the driver control bench besides due information on the interface , so that people can understand the principle more clearly .

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在对目前牵引控制诊断技术调研的基础上,对CRH3型动车组牵引诊断技术进行了阐述,并重点分析了动车组从传感设备数据采集到诊断显示的拓扑结构和牵引控制单元的诊断策略,对CRH3型动车组的故障诊断、故障处理、运营维护具有重要指导意义.
@@@@Based on the reaearch of present traction control and diagnosis technology, the traction control and diagnosis technology of CRH3 EMUs was elaborated detailely,and the diagnosis strategy of traction control unit and the configuration from date collection to the display of diagnosis was analyzed,and this has important guiding significance to fault diagnosis,fault disposal,operation and maintenance of CRH3 EMUs.

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目的探讨抑郁症患者褪黑素(MT)水平对下丘脑-垂体-肾上腺轴(HPA)功能的影响。方法对86例抑郁症患者,检测血清MT、促肾上腺皮质激素释放激素(CRH)、促肾上腺皮质激素(ACTH)、皮质醇(COR),并分析其相互关系。结果1以MT中位数(51.3ng/L)为切点,将所有抑郁症患者分为MT高值组(51.3ng/L,n=43)与MT低值组(51.3ng/L,n=43),前者血清CRH、ACTH、COR均显著低于后者(t=3.330,3.315,2.314;P0.01,0.01,0.05);2血清MT水平与CRH、ACTH水平负相关(r=-0.414,-0.329;P0.01,0.05)。结论褪黑素对抑郁症患者的HPA轴功能可能有一定的抑制作用。
Objective To study the effects of melatonin(MT) on activity of hypothalamic -pituitary-adrenal(HPA) axis in depres-sion.Methods Major depression patients(n=86) were rolled for the study and assigned to be tested by MT ,corticotrophin releasing hormone(CRH),adrenocorticotrophin hormone (ACTH),cortisol(COR) and 17-items hamilton depression scale for analysis .Results Divided by the median of serum MT level (51.3ng/L),the patients who had higher MT level (>51.3ng/L) had significantly decreased level of CRH,ACTH,COR (t=3.330,3.315,2.314;P<0.01,0.01,0.05) than those who had lower MT level(<51.3ng/L,n=43). The serum level of MT was markedly related with CRH (r=-0.414,P<0.01) or ACTH(r=-0.329,P<0.05).Conclusion Melatonin may inhibit the activity of hypothalamic -pituitary-adrenal axis in patients with depression .

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介绍了CRH3型动车组火灾报警系统。详细分析了火灾报警系统的组成、功能及控制逻辑。针对火灾报警系统几种常见的故障案例,给出了行之有效的解决方案。
The fire alarm system of CRH3 EMU is introduced in this paper . The composition , function and control logic of the fire alarm system is expounded . And aiming at the usual faults of the fire alarm system , the effective solutions are presented .

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辅助供电系统主要为车载设备提供交流或直流电源,核心电源设备为辅助变流器,辅助变流器分单辅助变流器(ACU)和双辅助变流器(D-ACU)。文章分析了CRH3型动车组辅助供电系统的组成结构、工作原理。
Auxiliary power supply system mainly provides AC or DC power supply for on-board equipment, and the core power equipment is auxiliary converter. The auxiliary inverter includes single auxiliary converter (ACU) and double auxiliary converter (D - ACU). This paper analyzes the composition structure and working principle of type CRH3 EMU.

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对京津城际铁路CRH3C型动车组车轮磨耗、车辆振动性能进行长期跟踪试验研究。研究发现部分动车组车轮镟修后车体横向失稳,而镟修后车轮外形等效锥度过小是车体失稳的主要原因。通过理论分析与试验研究,确定新的系列薄轮缘车轮形面设计原则为:提高轮轨等效锥度;统一轮缘高度;高次曲线连接轮缘根部与踏面外形。通过仿真计算、试镟修与线路运用考核薄轮缘车轮外形。仿真计算和线路测试结果表明:京津城际铁路CRH3C型动车组车轮采用该系列薄轮缘外形镟修后,轮轨等效锥度为0.17,动车组车体失稳现象消失,构架稳定性和运行平稳性均满足标准要求,直径镟修量控制在2mm以内。
Long-term follow-up measurements were made to study the wheel tread wear and its influence to the running behavior of CRH3C EMUs operated on the Beijing-Tianjin Inter-city High-speed Railway Line .The re-sults showed that lateral car-body hunting unstability appeared after some wheels were profiled ,and the main reason was that the wheel tread profile conicity was too low . To solve such problems , the new series of thin flange wheel profiles were designed for CRH3C EMUs running on the Beijing-Tianjin Inter-city Railway Line . Three design principles were determined ,i.e. , to raise the equivalent wheel-rail profile conicity , to apply uni-form flange heights and to connect the flange root and tread contour by the high-order curve . T he new w heel profiles were tested and verified by dynamic simulation , trial profile and line operation . Simulation calculations and line measurements show that when the new series of thin flange wheel profiles are adopted with CRH 3C E-MUs running on t

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[目的]观察手术创伤应激反应对术后认知功能的影响,探讨电针对术后认知功能障碍(postoperation cognitive dysfunction,POCD)干预效应的下丘脑-垂体-肾上腺轴(Hypothalamic-pituitary-adrenocortical Axis,HPA轴)调节机制。[方法]将100只雌性中老龄SD大鼠随机分为正常组、模型组、电针组和药物组,后三组又分为1d、3d、7d三个亚组,每组10只。采用酶联免疫吸附法测定大鼠血清肾上腺皮质激素释放激素(CRH)、促肾上腺皮质激素(ACTH)和皮质酮(CORT)水平,利用morris水迷宫检测电针对大鼠认知功能的改善作用。[结果]POCD模型组动物血清中ACTH、CORT和CRH水平较正常组有显著升高(P0.05或P0.01);与模型组相比电针组和药物组血清中ACTH、CORT和CRH水平显著下降(P0.05或P0.01),电针组和药物组大鼠在原平台象限停留时间较之模型组均有显著升高(P0.05或P0.01)。[结论]手术引起的创伤性应激反应可能是POCD诱发机制之一,电针可通过调节HPA轴对POCD产生治疗作用。
Objective The purpose of this study is to investigate the effect of electroacupuncture of Baihui and Dazhui points on POCD rats ’HPA axis and cognitive function. Furthermore, we want to explore the mechanism of electroacupuncture therapy with hypothalamic-pituitary-adrenal axis in POCD. [Methods]100 famale SD rats were randomly divided into control group, model group, electroacupuncture group and drug group. The model, electroacupuncture and drug groups were furtherly divided into 1 day group, 3 days group and 7 days group. The level of ACTH, CORT and CRH in blood serum was measured by enzyme linked immunoadsorbent assay. The improvement of cognitive function in rats was detected by morris water maze. [Results]Compared with control group, the level of ACTH, CORT and CRH in blood serum of POCD model group, P<0.05 or P<0.01; Compared with model group, the level of ACTH, CORT and CRH of electroacupuncture and drug group decreased( P<0.05 or P<0.01). Electroacupuncture and drug

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CRH3型动车组是中国动车组的鼻祖，其原型车是VelaroE动车组。它是以德国铁路股份公司（DBAG）的ICE3为原型车开发研制的，最高运行速度达到350km／h，用于西班牙新建的马德里——巴塞罗那高速铁路，将2007年投入运用。由于ICE系列动车组是德国国铁的注册商标，所以西门子公司为西班牙提供的动车组定名为VelaroE，这个是西门子公司拥有自主知识产权的品牌。
CRH3 trainset is the ancestor of Chinese multiple trainset,its prototype is Velaro E,which was developed from the prototype ICE3 from DG AG,with max.operation speed up to 350km/h and operated on Spain newly built high speed line from Madrid to Barcelona,which was put into operation in 2007.due to ICE series is registered trade mark of German National Railway,so Siemens named the trainset supplied for Spain as Velaro E,it is a brand with independent intel ectual property.

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针对现阶段高速动车组制造技术国产化的趋势,在消化吸收CRH3型动车组关键技术的前提下,研究了CRH3型高速动车组车门控制系统的网络拓扑结构,并在此基础上设计了车门控制系统通过多功能车辆总线(MVB)与列车控制单元、诊断单元及制动单元间的通信接口,优化车门控制程序,保证车门系统在高速动态运行环境中实时可靠地工作。结合实际运行过程中出现的故障,分析产生的原因,优化了列车控制网络与车门通信控制逻辑,消除运行中的安全隐患,保证了列车高速运行时的安全与稳定性。
At present,according to the localization trend of high-speed EMU''s manufacturing technology,and under the premise of key technology digestion and absorption of CRH3,the door communication system network topology structure was studied,and then communication interfaces among the door control system,train control unit,diagnostic unit and brake control unit were designed through multifunction vehicle bus (MVB). The door control procedures were optimized,to ensure real time and reliable work of the door system in high speed dynamic operation environment. Though analyzing operation fault,the control logic between the train com-munication network and the door control system was optimized. Then the hidden trouble of safety was eliminated,and the safety and stability of train running at a high-speed dynamic operating environment were ensured.

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CRH3型动车组是我国完全国产化的高速列车，也是作为当前高速铁路运营的主要车型，对其牵引性能进行模拟研究有着巨大的意义。目前高速列车牵引模拟系统主要有硬件为主的半实物仿真系统以及软件仿真系统，但都有着各自的弊端。介绍了一种在传统半实物系统的基础上，引入了LabVIEW模块以及路况投影，采用电机加载模拟负载，具有极高的可视化并能够有较高的自动化的系统，能够高效而低成本地进行高速列车的牵引模拟。
CRH3 EMU is the high-speed trains of compIete IocaIization,as the mainvehicIe operations of high-speed raiIway,its traction performance simuIation study has great significance.CurrentIy high-speed train traction simuIation system mainIy has hardware-based semi-physicaI simuIation system and software simuIation system,but aI have their own drawbacks.This pa-per introduces a system based on the traditionaI semi-physicaI systems.

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