RSA密码算法的JAVA实现

RSA公钥密码算法是重要的加密算法之一,被广泛应用于数据加密和关键数据数字签名之中,该文介绍了通过RSA公钥密码算法对信息进行加密解密的过程,并给出了其通过JAVA的一种实现方法。     

基于分布式对象模型的数据库访问技术

通过分析不同的数据库访问接口(专用接口、ODBC、DAO／RDO、ADO、JAVA／JDBC),提出了基于CORBA的数据库访问对象模型,给出了一种新的数据库访问方法和结构.     

A Model for Slicing JAVA Programs Hierarchically

Program slicing can be effectively used to debug, test, analyze, understand and maintain objectoriented software. In this paper, a new slicing model is proposed to slice Java programs based on their inherent hierarchical feature. The main idea of hierarchical slicing is to slice programs in a stepwise way, from package level, to class level, method level, and finally up to statement level. The stepwise slicing algorithm and the related graph reachability algorithms are presented, the architecture of the Java program Analyzing TOol (JATO) based on hierarchical slicing model is provided, the applications and a small case study are also discussed.     

结合JACOB的JCA资源适配器设计与实现

为了有效利用基于COM组件的数据源,引入JACOB(Java-COM Bridge)技术,给出了基于COM组件的数据源的JCA资源适配器的设计与实现,并将其集成到应用服务器.JCA(J2EE Connector Architecture)用于解决集成过程中涉及的连接管理、分布式事务管理和安全管理问题;JACOB用于Java和基于COM组件的数据源之间的数据结构转换.     

构建校园教育网格体系的研究

本文介绍了网格的概念、发展动因、体系结构、相关技术及其应用，简要介绍了基于OGSA框架下的Globus Toolkit，对网格技术在校园教育网格中的应用开发做了整体上分析。     

Modeling cooling of ready-to-eat meats by 3D finite element analysis: Validation in meat processing facilities

A three-dimensional (3D) finite element model for simulating heat transfer during cooling of irregular-shaped ready-to-eat meat products was developed and validated. The heat transfer model considered conduction as the governing equation, subject to convection, radiation and moisture evaporation boundary conditions. A 3D finite element algorithm developed in Java™ was used to solve the model. The algorithm generated solutions for meshes containing 4-node tetrahedral volume elements and 3-node triangular boundary elements. Product geometries were generated from CT-scan images of the meat products. The model was adapted to receive input parameters that can be easily provided by a meat processors including air relative humidity, air temperature, air velocity, type of casing, duration of water shower, product weight, and estimated core temperature of product prior to entering the cooling chamber. Model validation was conducted in four commercial facilities, under normal processing conditions. Temperatures predicted by the model were in agreement with observed values. Average root-mean-square error (RMSE) was 1.19 ± 0.54 °C for core temperatures, 1.73 ± 0.48 °C for temperatures 0.05 m from core to surface, and 2.01 ± 1.01 °C for surface temperatures. The developed heat transfer model was integrated with predictive microbiology models through a food safety website: numodels4safety.unl.edu. The integration can be useful for estimating the severity of cooling deviations and resulting microbiological safety caused by unexpected cooling process disruptions.