基于SolidWorks、ANSYS的管道清灰机器人操作臂有限元分析

通过SolidWorks软件建立了操作臂的三维实体模型,利用ANSYS软件完成了操作臂的有限元分析,从理论上得到了操作臂的最大受力点承受的应力小于材料的屈服应力,达到了设计要求,为进一步优化设计提供了技术支持。     

Overview of Human Factors and Ergonomics in the OR,with an Emphasis on Minimally Invasive Surgeries

Operating rooms (OR) are where medical teams work to improve the health of a patient. However, because of the complexity of the procedures, errors and unsafe situations are likely to occur. These complications can lead to harm to the patient or medical professionals. Human factors and ergonomic professionals have been working to improve these unsafe conditions in the OR for over a century. However, with advances in technology, increased surgical complexity, as well as an increase in medical team members in the OR, there are still numerous improvements yet to be accomplished. Minimally invasive surgeries require an even more advanced approach to prevent errors due to technology, fatigue, and miscommunication. Human factors and ergonomic techniques provide the ability to greatly improve conditions for patients and surgeons alike. It is imperative that human factors and ergonomics continue to grow and facilitate technological advancements in healthcare. © 2012 Wiley Periodicals, Inc.     

On the applicability of the laminar flow index when selecting surgical lighting

In modern operating rooms ultraclean air is supplied through the ceiling to prevent bacteria from entering an operating wound and cause infections. Operating lamps can disturb this flow of clean air. In this paper the accuracy of some aspects of the Laminar Flow Index of operating lamps was tested. The disturbance of the airflow was determined for different shapes and sizes of operating lamps in an isothermal situation. To accomplish this, an experimental study and a simulation study of a small room with an operating lamp were performed. The infection risk was found to be proportional to the projected surface area of the lamp. Although different lamp shapes resulted in a distinctly different flow pattern in the room, this did not affect the infection risk in a significant way. Operating lamps with a projected area smaller than 0.1 m² do not disturb the airflow at all in this particular setup.     

不同比转速(n_(s_1)、n_(s_2))泵叶轮的同轴串联试验研究

本文论述了不同比转速(n:1、n:2)泵叶轮进行同轴串联的有关问题。通过对性能参数的选择与匹配计算、水力设计问题的处理,样机试验及真机的运行考核,其问题得到了满意的解决。     

运行方式对三峡输电网络的影响

本文根据三峡电站可行性论证报告中三峡输电系统的电网结构，计算了丰水年的丰水期大，小运行方式和枯水年的枯水期大，小运行方式下的潮流分布，提出了几个影响三峡电站输电网络结构的问题和建议，供今后三峡电站电力系统研究和设计时参考和采用。     

多机操作系统研究

多机操作系统的研究与设计是计算机应用领域内的一个十分重要的课题.本文对多机操作系统的设计与执行程序进行了一些具体的研究,并着重介绍了作者自行设计的 ZMDOS.     

油田注水站机器振动状态监测系统的研究

本文介绍了一种最新研制的机器振动状态监测系统。该系统能对油男注水站机组的机械动特性进行的线实时监测分析，并能为机组的状态维护提供信息，该系统还具有故障预报，故障追记和故障分析功能，文中介绍了该系统的组成和功能，并提供了一种用于判断机器工作状态正常与否的方法。     

场效应型氢离子敏传感器测量方法的实验研究

基于场效应型氢离子敏传感器（Ｈ＾＋－ＩＳＦＥＴ）参数及电流－电压特性，归结出四种Ｈ＾＋－ＩＳＦＥＴ传感器的四种测量工作模式，从应用角度讨论了它们的适用条件以及实现差动输出测量的简单方法。实验结果表明，由Ｈ＾＋－ＩＳＦＥＴ／ＲＥＦＥＴ对管构成的差动输出电路具有较好的共模抑制能力和Ｈ＾＋离子敏感性能。     

用VB编程模拟内存固定分区分配

存储器是计算机系统的重要组成部分。近年来,随着计算机软件规模的不断扩大,系统对存储器尤其是内存的要求也越来越高,操作系统如何对它加以有效管理,最大限度地发挥内存这种宝贵而又紧俏的资源至关重要。事实上,操作系统对内存的分配方式有多种,不同的方式特点不一,但由于内存分配是看不见的,不易增加学生的感性认识。为此,采用VB编程,模拟内存的固定分区分配,可以使学生能通过图形化的分配界面,加深对内存分配原理的理解。