Temperature monitoring and heating optimization in cancer hyperthermia

A closed form analytical solution to the Pennes' equation with random heating was obtained using the Green s function method. To meet the requirements for the tumor killing temperature and the skin bum threshold, an approach to optimize the cancer hyperthermia parameters was proposed. For clinical practices, a solution to reveal the relationship between skin surface temperature and the transient temperature inside the tissue was obtained. Parametric study shows the feasibility of the heating optimization. The present approach can be incorporated in the apparatus to es¬tablish a noninvasive hyperthermia system.     

混合弯管湍流的数值模拟

正确计算出弯管内流体交汇处附近的流场和温度场的分布情况，对于设计合适的入口管道位置具有重要意义。以工程中常见的弯管为例，应用计算流体力学（CFD）技术，研究管中的流体状态参数。使用目前通用的专业CFD数值计算软件FLUENT对管道内流体进行二维数值模拟，分别对算例采用一阶离散化方法和二阶离散化方法进行模拟，并对二者的结果进行比较分析。结果表明，以κ-ε双方程模型解决这样的问题可获得满意的结果。     

面积计算发现式学习环境的构建策略

在现代学习理论背景与计算机辅助教学技术支持下，尝试构建面积计算发现式学习环境，阚述了该学习环境的构建思路，提出了3条基本构建策略．