一种新型的共享存储网络构架

在传统的DAS构架之后，SAN和NAS的解决方案给存储领域带来了巨大的影响，分析和比较了目前存在的各种存储构架，在SAN和NAS构架的基础上，结合其各自的优点，提出了一种新型的共事存储网络构架。阐明了这种构架的特点；并进一步采用SNIA共享存储模型(SNIA Shared Storage Model)分析了该构架；最后就这几种构架的性能作了比较。     

循环加氢精制替代氧化精制己内酰胺的工业应用

采用非晶态合金催化剂，将循环加氢精制工艺取代SNIA氧化精制工艺，使产品优级品率由56％提高到100％；取缔了原氧化精制工艺，每年612t的废渣，产品收率提高1％，经济效益达1510万元/年。     

Modeling the transport of ions in unsaturated cement-based materials

This paper gives the details of the multiionic transport model STADIUM^® intended to describe the degradation of cement-based materials exposed to aggressive environments. The main algorithm is based on an operator splitting approach. The first part of the calculations is dedicated to solving the transport equations without considering the chemical reactions. The concentration profile of each ionic species is calculated by taking into account diffusion, electrical coupling between the ions, chemical activity effects and advection caused by a capillary suction flow. In the second part, a chemical module corrects the concentration profiles to enforce the equilibrium between the pore solution and the various solid phases of an hydrated cement paste. The model is compared to experimental results of hydrated cement pastes exposed to pure water and sodium sulfate solutions. Long term simulations were also performed to analyze the behavior of the algorithm.