一种超市OLAP系统的设计与实现

在简要分析OLAP和数据仓库的关系的基础上,介绍了某超市OLAP系统的一种体系结构、数据组织模式及其有关实现的关键技术,提出了一种建立在MSAnalysisServices上的OLAP系统的设计与实现方法。它采用MicrosoftSQLServer2000作为后台数据库服务器,使用MicrosoftSQLServer2000的AnalysisServices作为OLAP服务器,使用决策支持对象来管理OLAPServer中的各种对象,使用ADO/MD及MDX等技术实现多维分析。     

FANUC 0MD数控系统的应用——以XK714数控铣床为例

本文以XK714数控铣床为例,介绍了FANUC 0MD数控系统的构成、各模块功能以及接口信号的含义。     

一种信号个数估计方法及其在测频中的应用

本文介绍一种高精度的数字测频算法———根MUSIC算法。通过分析发现,该算法在低信噪比(0 dB)的情况下,仍能得到高精度的频率估计值,其频率分辨率也比DFT高。然而,在电子侦察中要应用该方法进行测频,关键是首先要确定接收信号的个数。根据协方差矩阵特征值的大小分布特点,本文提出了差分中值法来确定信号个数,该方法的性能优于MDL准则。计算机仿真验证了该方法的可行性和稳健性。     

基于点阵液晶的波形显示

文章提出了一种基于ST7920控制器系列的MD12864C-1液晶的波形显示算法。根据波形的特点,由于液晶的行数有限,利用单片机对波形幅度值按比例的换算,再对相应点赋值,最后通过串行数据传输到液晶的数据RAM,最后实现了正弦波形的显示。     

An experimental approach to segmenting buyers of marketing research

Successful industrial market segmentation may often depend on the marketer's ability to identify key characteristics influencing purchase preferences. Environmental, organizational, and personal factors are all potential determinants of buyer response patterns. Recent attention to microsegmentation processes has focused interest on personal level factors and how these are modified by organizational and situational variables. Utilizing a simulated buying experiment, this study explores a simplified approach to microsegmentation that emphasizes information readily available to industrial vendor representatives.     

Segmenting buyers in different types of organizations

Organizational type is presented as a potentially important company specific characteristic that affects the organizational buying process. Factor analysis and multiple discriminant analysis are utilized to demonstrate that differences in the importance associated with purchasing related factors exist among purchasing managers from commercial, non-for-profit, and government organizations. Finally, the managerial usefulness of organizational type as a macrosegmentation variable is discussed.     

Accounting and budgeting systems: The issue of congruency

The importance of designing an accounting system that is congruent with an organization's budgeting system has been noted in the literature. Unfortunately, in many government organization it is common to find incompatible budgeting and accounting systems. The purpose of this study is to investigate whether gearing the accounting information system to a zero-base budgeting system increases the perceived usefulness of the budgeting process. This issue is examined under conditions of both scare and abundant resources. Based on an empirical study, it is shown that the usefulness of a budgeting system to budget recipients may indeed be dependent on the accounting information system, conditioned on the availability of resources. Given the relationship between budgeting and public policy, implications of the study for the public policy making process are discussed.     

上市公司年度报告“MD＆A”披露质量研究——来自甘肃省上市公司2008-2012年的数据

“MD＆A”信息既是对公司历史经营业绩的回顾与评价,同时也包含了管理层对于公司未来发展情况的前瞻性信息.“MD＆A”信息披露制度的建立和不断完善在一定程度上消除了投资者和管理层信息不对称的问题.本文通过构建MD＆A信息披露质量指数,区分定量和定型数据,采用0～2评分法对110个样本,从按披露的方式、信息类型、信息导向、以及信息使用者较为关注的前瞻性信息的可信度分析等方面对甘肃省上市公司2008年至2012年MD＆A信息披露的基本情况与动态趋势进行统计分析,进而实证检验MD＆A信息披露与下一年度EPS显著正相关,并就如何提高MD＆A的可理解性等问题提出建议.     

Hash杂凑函数在电子商务中的安全应用

回顾了电子商务的安全目标及其相应的安全控制要求，重点分析了Hash杂凑函数在电子商务安全方面的应用。首先描述了MD5报文摘要算法，然后在分析电子商务中的安全问题基础上，深入探讨了采用MD5算法保证电子商务安全性的理论可行性和实现机制。     

基于安全设计的电话网管理系统协议适配器

交换机多厂商环境一直是困扰我国电话网管理系统建设的难题.文中对现有的的几种解决方案进行了分析,指出了其中的不足,阐述了电话网管理系统中的关键技术--协议适配器的实现思想,重点研究了协议适配器的接口设计和安全性设计.