Predicting Youth Access to Tobacco: The Role of Youth Versus Store-Clerk Behavior and Issues of Ecological Validity.

Twenty-one 15- to 17-year-olds attempted to purchase cigarettes in 232 stores in the manner that confederates typically do in access studies, as well as in the manipulative ways (e.g., lying about their ages) that youth smokers do, thereby modeling youth access to tobacco within versus outside of studies, respectively. Youth typical-research versus manipulative behavior was contrasted with clerk behavior (requests for youth ID cards) to examine the relative contributions of both to youth access to tobacco for the 1st time. Results revealed that clerk behavior was the strongest predictor of cigarette sales to youth and hence underscore the need for interventions with merchants. Sales nonetheless were higher under youth-manipulative conditions and thereby highlight the low ecological validity of access research. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

On a responsive replenishment system: a fuzzy logic approach

In today's competitive business environment, it is important that customers are able to obtain their preferred items in the shops they visit, particularly for convenience store chains such as 7–Eleven where popular items are expected to be readily available on the shelves of the stores for buyers. To minimize the cost of running such store chains, it is essential that stocks be kept to a minimum and at the same time large varieties of popular items are available for customers. In this respect, the replenishment system needs to be able to cope with the taxing demands of minimal inventory but at the same time keeping large varieties of needed items. This paper proposes a replenishment system which is able to respond to the fluctuating demands of customers and provide a timely supply of needed items in a cost–effective way. The proposed system embraces the principle of fuzzy logic which is able to deal with uncertainties by virtue of its fuzzy rules reasoning mechanism, thereby leveraging the responsiveness of the entire replenishment system for the chain stores. To validate the feasibility of the approach, a case study has been conducted in an emulated environment with promising results.     

一种新型数据仓库体系的实现

针对当前流行数据仓库体系DB-DW存在的不足，引入ODS，构建起DB-ODS-DW数据仓库三层体系结构；并在分析当前通用数据仓库逻辑建模方法不足的基础上，提出将第三范式(Third Normal Form，3NF)和星型模式(Star-Schema)两种建模方法相结合来设计和实现DB-ODS-DW体系。     

信息转接死锁避免的动态优化算法

对于动态传输路径，给出了每个结点至少两个缓冲的信息转接网死锁避免问题，所提出的死锁避免算法从缓冲利用的角度看是优化的。同时给出了死锁无关的证明及其条件，这对于并行计算处理问题是有益的。     

带电作业工具库房状态监测与智能控制系统研制

带电作业工具合适的存放环境是保证其技术性能稳定可靠的前提,因而对其存放库房的环境状态进行有效的监测与控制显得十分必要。阐述了系统的总体结构与基本工作原理,研制了相应的硬件装置并开发了相应的控制软件,经实际运行测试具有性能可靠、功能完善、界面友好等特点,具有较好的应用价值。     

支持PnPW集成的开放式SMS软件模型与结构设计

针对即插即用武器集成要求,开放式悬挂物管理系统需要在不修改系统软件的前提下完成新武器的集成,为此,提出一种全新的软件设计思想。设计了系统的软件模型,从而得到软件的体系结构,完成了从系统功能层到武器控制层,以及操作系统和模块支持层的设计,通过系统软件对硬件资源的调用来分析软件的使用过程,最终实现了软件的功能。     

基于移动互联网的营业厅体验营销系统

提出了一种基于体验营销、移动互联网构建的营业厅营销系统,是当前的市场竞争形势下的服务创新,可在有限的条件下实现更高的销售效率。介绍了系统方案,并通过实例分析了该营销系统对成本、效率、服务和品牌的影响。     

基于新扫描策略的快速立体匹配算法

为提高立体匹配的运算速度,提出一种新的图像匹配扫描策略改进传统算法。在匹配扫描过程中,将图像由左至右的三列作为一组,各组内除首行外扫描次序为中间列、左列、右列像素点,按照文中扫描策略及像素点,在图像中所处位置,分别给出了各种情况下,以较小的存储空间,利用水平和竖直方向相邻像素点的模板已计算值,减少算法执行时间的方法。通...     

利用Windows计划任务设计广播站自动化播出

研究利用Windows的计划任务来解决扩音机和电脑的自动开关及建立相关音乐曲库、自动播放任务，以此实现广播系统的自动化播出。     

实现连续高速数据采集与存储的新方法

该文介绍了一种实现连续高速数据采集与存储的新方法。该方法允许以微型计算机为核心构成的数据采集系统，在无大容量的高速外部存储设备的情况下实现对高频参数的连续检测。这在生产特别是在科研实践中有十分重要的意义。