基于CDT的几乎同态问题探讨

范畴数据类型是基于范畴理论基础建立的，用于并行计算或框架结构设计中的并行操作。在链表上并行操作存在非同态问题。但有些功能可以转变为几乎同态来解决。文章对链表的几乎同态问题进行了深入的探讨，并得到了几乎同态定理，并通过事例在应用上加以论述。     

广州亚运会电视转播技术系统概述

本文详细介绍了广州2010亚运会电视转播的运行机构、组织形式、系统架构和运行模式.通过对场馆转播系统和IBC信号采集、分配、传输、监控、收录等系统的描述,使大家对广州亚运会的电视转播技术有一定的认识,同时对此次亚运转播中的3D直播技术进行了简单介绍.     

Eclipse的CDT插件分析

CDT是Eclipse开发C/C++的工具,并为专业领域(如嵌入式软件)提供二次开发支持。文章在分析Eclipse和CDT的本身特征的基础上,介绍CDT的功能结构,以C/C++程序开发者的角度,以工程管理、构建管理、运行调试的分类,研究扩展CDT的方法。     

COMPUTE A CELIS-DENNIS-TAPIA STEP

In this paper,we present an algorithm for the CDT subproblem.This problem stemsfrom computing a trust region step of an algorithm,which was first proposed by Celis,Dennis and Tapia for equality constrained optimization.Our algorithm considers generalcase of the CDT subproblem,convergence of the algorithm is proved.Numerical examplesare also provided.     

基于优网平台CDT模块网络分析功能的应用

优网平台CDT功能将大部分数据采集,分析和解决工作转移到后台完成,具有快速、准确,节约的特点.提供了在CDMA2000系统基于优网平CDT功能对EVDO网络进行话务模型分析的方法.在话务模型分析案例的基础上,进一步提出了CDT中与网络分析相关的条目,并结合平台现有的CDT字段和特色功能,尝试性探讨了CDT辅助网络分析的...     

存储器类型的CDT构造Ⅱ

目的 CDT(范畴数据类型)是以范畴理论为基础的并行计算模型，本文对存储器类型的CDT构造进行深入的探讨。方法 采用构造方法Ⅱ实现了存储器类型CDT。结果 通过例子比较了与构造方法Ⅰ的区别．同时进一步详细论述了两种构造方法的优劣性，而它们之间的关系可以采用类似文[8]的方式得到。     

Generation of carbohydrate-deficient transferrin by enzymatic deglycosylation of human transferrin

Carbohydrate-deficient transferrin (CDT) molecules are transferrin isoforms that lack one or both of the carbohydrate groups attached to a normal human transferrin molecule. CDT has been reported to be a sensitive and specific marker for diagnosing alcoholism. This report demonstrates the in vitro generation of CDT molecules that can potentially be used as the standard in measuring CDT concentrations. This was achieved by deglycosylation of human transferrin with the enzyme Endo-β-N-acetylglucosaminidase F₂ (Endo-F₂). The enzyme was immobilized on sepharose beads, which were packed into a column. The immobilization of the enzyme not only eliminated the Endo-F₂ contamination of CDT, but also rendered the enzyme suitable for repetitive use. In this manner, it was possible to obtain at least 200 mg of CDT over a period of more than 3 mo, without any noticeable decrease of enzyme activity, using only 3.0 μg of enzyme. This proved to be an efficient method for generating CDT.     

Computing a Celis-Dennis-Tapia trust-region step for equality constrained optimization

We study an approach for minimizing a convex quadratic function subject to two quadratic constraints. This problem stems from computing a trust-region step for an SQP algorithm proposed by Celis, Dennis and Tapia (1985) for equality constrained optimization. Our approach is to reformulate the problem into a univariate nonlinear equation()=0 where the function() is continuous, at least piecewise differentiable and monotone. Well-established methods then can be readily applied. We also consider an extension of our approach to a class of non-convex quadratic functions and show that our approach is applicable to reduced Hessian SQP algorithms. Numerical results are presented indicating that our algorithm is reliable, robust and has the potential to be used as a building block to construct trust-region algorithms for small-sized problems in constrained optimization.This research was performed while the author was on a postdoctoral appointment in the Department of Mathematical Sciences, Rice University, Houston, TX, USA and was supported in part by AFOSR 85-0243 and DOE DEFG05-86ER 25017.     

基于Eclipse平台的嵌入式交叉调试环境MRTOS

交叉调试是嵌入式系统开发的基本方式。基于采用PowerPC755处理器的调试目标机,设计并实现了基于Eclipse平台的集成开发环境MRTOS。该开发环境以Eclipse为调试前端,实现了与通用交叉调试器GDB的无缝集成,可实现对PowerPC755上目标程序的源代码级调试。