贞观年间突厥可汗阿史那氏助唐开疆拓土述论

较为系统地梳理了唐朝贞观年间突厥可汗阿史那氏助唐平定高昌和焉耆、进讨龟兹、慰抚西域、抗击和攻灭薛延陀、征伐高丽等一系列军事活动,阐明了居于突厥汗国核心种姓的阿史那氏为多民族国家的统一做出了重要贡献,为我们今天创造更加和谐的新型民族关系打下了坚实的基础。     

“雕戈蒙豹尾,红旆插狼头”——古代突厥语族民族狼头纛考述

本文主要论考汉籍所载古代突厥语族民族立狼头纛仪式及与之相关历史事迹,并文献所记狼头纛与相关文化史图鉴刊载的古代西城民族壁画作品中的狼头纛进行比较,进一步证实了上述民族历史上的立狼头纛仪式的史实。本文亦认为立狼头纛仪式实为氏族社会时期初民狼图腾崇拜文化的遗留。     

纸浆模塑制品热压整形设备的增力机构优化及模具设计

一般纸浆模塑制品热压整形设备采用气液增压系统,工作力小,成本高,维修复杂。为提高效率,减少能耗,选择力增益倍数大的五孔斜排式双曲肘三连杆合模机构,并使用MATLAB软件的多目标最优化函数fgoalattain优化结构尺寸,得到优化参数。为提高设备的适应性,采用PLC控制工艺流程,满足工艺试验要求;得到合理工艺参数,可调节快慢行程时间、保压时间、凸模抽吸时间等工艺参数;根据温度和压力反馈,控制模具温度和合模力。     

Mechanical analysis and reasonable design for Ti-Al alloy liner wound with carbon fiber resin composite high pressure vessel

To consider the internal pressure loaded by both the cylindrical Ti-Al alloy liner and the carbon fiber resin composite （CFRC） wound layers, two models are built. The first one is a cylinder loaded with the internal pressure in the hoop direction only. In this model, the total hoop direction load is distributed over all layers under the internal pressure. The second one is a cylinder loaded with the internal pressure in the axial direction only. In this model, the total axial load is distributed over all cylinders under the internal pressure. Taking the boundary conditions of the continuous displacement between layers into account, a group of equations are built. From these equations, we get the solutions of stresses in both hoop direction and axial direction loaded by every layer under internal pressures. After the stresses are obtained, a reasonable design can be done. An example is given in the final section of this study.     

机械零部件3D视图优化表达探究

根据表达零部件结构、形状、尺寸及加工、装配等技术的要求,分析了计算机三维实体造型生成3D视图、3D爆炸图等原理,探究了计算机三维模型生成3D视图的优化表达方案。     

机械故障监测与诊断技术的研究综述

概述了在机械设备的大型化、连续化、高速化和自动化的发展趋势中,机械故障监测与诊断技术在其设备的安全、可靠、高效运行方面中起到了重要的作用,并综述分析了振动分析方法这一关键技术,阐述了机械故障监测与诊断技术的发展趋势。     

力学教学内容和课程体系改革研究与实践

本文依据《面向21世纪普通物理学教学内容和课程体系改革研究与实践》课题研究方案要求，对力学课程的教学内容，课程体系和教学方法进行了改革研究与实践。     

无创正压通气治疗急性左心衰的临床研究

目的：观察机械通气治疗急性左心衰的疗效。方法：60例急性左心衰患者,随机分为常规治疗组和无创通气组,无创通气组在常规治疗基础上加用机械通气治疗,观察通气前后心率（HR）、呼吸频率（RR）,平均动脉压（MAP）及血气分析（pH、PaO2、SaO2、PaCO2）的变化及临床症状的改善情况。结果：机械通气治疗后,患者呼吸困难明显改善,生命体征很快稳定,血气分析指标明显好转。结论：对各种不同原因引起的急性左心衰,机械通气能及时有效的改善患者的临床症状及低氧血症,是抢救急性左心衰的有效措施。     

Vacuum interrupter, high reliability component of distribution switches, circuit breakers and contactors

The use of vacuum interrupters(VIs)as the current interruption component for switches,circuit breakers,reclosers and contactors operating at distribution voltages has escalated since their introduction in the mid-1950’s.This electrical product has developed a dominating position for switching and protecting distribution circuits.VIs are even being introduced into switching products operating at transmission voltages.Among the reasons for the VI’s popularity are its compactness,its range of application,its low cost,its superb electrical and mechanical life and its ease of application.Its major advantage is its well-established reliability.In this paper we show how this reliability has been achieved by design,by mechanical life testing and by electrical performance testing.We introduce the“sealed for life”concept for the VI’s integrity.We discuss this in terms of what is meant by a practical leak rate for VIs with a life of over 30 years.We show that a simple high voltage withstand test is an easy and effective method for monitoring the long-term vacuum integrity.Finally we evaluate the need for routine inspection of this electrical product when it is used in adverse ambient environments.