CTCS3无线闭塞中心工程化数据生成方法与实现

为保证在实际工程项目实施中,能够更精准、高效的完成无线闭塞中心(RBC, Radio Block Center)的工程化数据配置,通过分析列控地面工程数据和RBC数据结构,提出一种RBC工程化数据生成方法。基于RBC工程化数据配置规则,采用C#和NPOI,开发了由列控地面工程数据到RBC工程化数据的数据转换工具。经试验表明, RBC工程化数据生成方法是可行的。该数据转换工具显著节约人工成本、缩短项目周期,目前已成功应用于8套RBC的工程化数据配置。     

Preliminary characteristic of alginate,heparin-chitosan-alginate,heparin microencapsulated hepatocytes system

Alginate, low mole mass heparin-chitosan-alginate, low mole mass heparin microcapsules (ALCAL) with good mechanical stability were made from the high voltage pulsing microcapsule shaping device. ALCAL was made of low-mole-mass heparin (LMWH), alginate (ALG) and chitosan (CS) by supramolecular layer upon layer self-assembled technique. It was found from the microscopic observation that the microcapsules had smooth surface and a porous structure with interconnected pores. The results of the permeability experiment of microcapsules using fluorescein isothiocyanate-bovine serum albumin (FITC-BSA) and fluorescein isothiocyanate-immunoglobulin G (FITC-IgG) showed that the ALCAL membrane could provide cell immuno-isolation; meanwhile, the ALCAL membrane had good biocompatibility. The potential of ALCAL microcapsules for the encapsulation of liver cells had been investigated and showed that the ALCAL membrane supports the survival, proliferation and protein secretion on encapsulating hepatocytes. The ALCAL microcapsule had several advantages compared to more widely used alginate-chitosan-alginate (ACA) microcapsules for the application of cell therapy.     

微乳型切削液的研制

微乳型切削液是技术领先的切削液类型，集中了乳化型切削液和合成型切削液的优点。该切削液润滑效果好，有良好的极压性，能够满足苛刻加工；通过了铸铁屑法防锈试验和铸铁单片、叠片防锈试验；可用于黑色金属、有色金属等多种金属零件切削加工；有良好的乳化性、渗透性等，具有较强的清洗排屑作用；有良好的防霉性，不易腐败，使用寿命长；原液外观均匀透明、无沉淀、无分层；不含亚硝酸盐及重金属盐等，为无毒环保型产品。