基于多级并行蚁群算法的智能医疗建筑综合布线系统设计

最小生成树算法(Minimum Spanning Tree,MST)是一种用于在加权连通图中找到最小生成树的算法。其目标是选择连接所有顶点并且边权重之和最小的边的子集。改进的A算法通过动态评估优先级来进行搜索。这种评估方式能够通过启发信息的引导。由于智能医疗建筑综合布线系统架构复杂,导致最小树算法、改进A*算法在安全方面较差,因此,提出基于多级并行蚁群算法的智能医疗建筑综合布线系统设计。在系统的硬件设计上,设计配线架,之后进入嵌入式处理器,最后到达随机存取存储器。在系统的软件设计上,构建医疗建筑综合布线路径的目标函数,根据目标函数,建立布线规划约束条件,完成基于多级并行蚁群算法的最优建筑预埋布线方案求解。对该系统进行性能测试,结果表明,该系统在耗时方面表现较为稳定,满足实际应用需求。

并线生产曲轴柔性热处理装置的设计研究

曲轴热处理变形的主要影响因素是自重和热传递。文中以有限元法为基础,分析曲轴不同放置方式时的热处理变形,通过研究可知:曲轴热处理时,与水平放置相比,竖直放置时因自重而产生的变形大大减小,变形量降低了78.2%。依据以上研究结果,基于仿形机构原理,设计了一种并线生产柔性曲轴热处理装置,该装置主要包括定位机构、自动上下料机构、同步运动机构、热处理机构等,热处理时曲轴竖直放置,可以同时对多个轴颈并行热处理;同时,针对自动上下料机构,设计了专门的采用PLC控制的液压与气动系统。该装置曲轴热处理节拍快、轴颈加热均匀、变形量小、热处理柔性好,能适应四缸、六缸等多种曲轴的在线生产热处理。

Parallel Subgroup Design of a Randomized Controlled Clinical Trial——Comparing the Approaches of Chinese Medicine and Western Medicine

A new method for the comparison of the treatment efficacy for specific diseases or conditions between Chinese medicine and Western medicine, which serve the same medical aim but are based on substantially different theoretical systems, was identified. Abiding by the principle of parallel subgroup design of a randomized controlled trial （PSD-RCT）, participants were recruited following identical inclusion and exclusion criteria and were randomly allocated into two groups to receive treatment using the respective approaches of Chinese medicine and Western medicine. The Chinese medicine group was divided into subgroups according to the theory of Chinese medicine and the Western medicine group was also divided into subgroups according to the theory of Western medicine. The treatment for each subgroup was well defined in the protocol, including major formulae and principles for individualized modifications. The primary outcome measure was ascertained to be directly related to the patients＇ status but independent from both theories of Chinese medicine and Western medicine, while the secondary outcomes were represented by the patient-reported outcomes and some laboratory tests commonly accepted by Chinese medicine and Western medicine. Then, taking functional dyspepsia as an example, the authors explain the framework of the PSD-RCT for efficacy comparisons between Chinese medicine and Western medicine, and recommend that the PSD-RCT can be used to compare treatment efficacy for a specific disease or condition between Chinese medicine and Western medicine, and the comparison among subgroups can provide valuable clues for further studies.

教师导向教学法与同侪协助学习法之比较：并行处理设计之应用

本研究旨在探讨并比较教师导向教学模式和同侪协助学习策略，应用在智能障碍学童学习单字成效之差异。采用单一受试研究法中的并行处理架构，结合跨受试多探试和交替处理设计。研究样本共三名，分别为轻度、中度及重度智能障碍学童。资料蒐集後透过视觉分析与C统计处理，所获结果陈述如下：第一，教师导向教学模式强调教学情境的控制及教学方法的应用，其适用范围较广。若应用於轻度智能障碍学生的语文课程，单字学习效果颇佳，且能在短时间之内教会学生记得所有单字，然而其保留效果不理想。对重度学生而言，教师导向教学策略的效果略差，且保留效果也不如预期。第二，同侪导向学习策略强调教学者和学习者之间关系的建立及学习内容和日常生活的连结。研究发现当应用在轻度智能障碍语文课程时，其学习单字的成效不如教师导向教学模式。然而，若实施於重度智能障碍课程，则其单字学习效果优於教师导向教学，同时保留效果也略胜一筹。