本文通过经济基础和上层建筑的关系说明进行环境文化建设的重要性，辨析了不同的环境 价值观念和伦理道德。提出人与环境相融和谐的意识是可持续发展观的灵魂

本文界定环境哲学的基本范畴框架，以“天人合一”和“主客恶性二分”分别概括中国和西方的传统环境形上学特征，分析环境哲学的源流及其在当代可持续发展要求下的学科建构。

The time evolution of a line puff, a turbulent non-buoyant element with significant momentum, is studied using the renormalization group (RNG) K-∈ model. The numerical results show that the puff motion is characterized by a vortex pair flow; the computed flow details and scalar mixing characteristies can be described by self-similar relations beyond a dimensionless time of around 30. The added mass coefficient of the puff motion is found to be approximately unity, The predicted puff flow and mixing rate are substantially similar to those obtained from the standard K-∈ model and are well supported by experimental data. The computed scalar field reveals significant significant secondary concentration peaks trailing behind in the wake fo the puff. The present results suggestthat the overall mixing rate of a puff is primarily detenmined by the large-scale motion and that stremline curvature probably plays a minor role.

Thepresent work discusses coupled heat and mass transfer during freeze-drying of a rigid product, as well as accelerated freeze-drying where sublimation and desorption occur concurrently. A desorption mushy zone model was developed to describe the desorption drying. An exaxt solution was obtained for coupled heat and mass transfer with one discrete sublimation moving interface and one desorption mushy zone where mass transfer is controlled by both Fick and Darcy laws. The effects of several parameters on the sublimation and desorption are analyzed and discussed.