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141.
计算机多媒体课件作为新兴的现代教学手段,在教学过程中发挥着日益重要的作用,但在体育教学中的应用还处于起步阶段.制作篮球训练CAI课件,应设计好选题,收集好素材,设计CAI课件标本,处理好素材,进行课件的整合与完善,在素材的收集和整理中做一个"有心人",在课件的编辑和整合中做一个"用心人".  相似文献   
142.
Abstract:  This paper studies actual (real) house prices relative to fundamental (real) house values. Such a focus is warranted since housing constitutes a large fraction of most household portfolios, and its characteristics are such that, in contrast to what prevails in financial markets, arbitrage will be limited and hence correction toward 'true' value is likely to be a prolonged process. Using UK data and a time-varying present value approach, our results preclude the existence of an explosive rational bubble due to non-fundamental factors. We further find that intrinsic bubbles have an important role to play in determining actual house prices although price dynamics appear to impact, particularly in periods of strong deviation from fundamental value. Price dynamics are found to be driven by momentum behaviour.  相似文献   
143.
电算化的普及给会计工作带来许多变化。适应电算化要求,必须组建合理的会计组织机构,重视安全防 范,提高财会人员素质。  相似文献   
144.
与发达国家相比,我国计算机审计准则缺乏操作层次规范,弱化实际应用性,内容时效滞后,内控制度过 于笼统,审计风险评价乏力。重构我国计算机审计准则系统,应本着系统性、完整性、实用性原则,科学规划一般准则 和具体审计指南。在借鉴国外先进经验,制定计算机审计准则时,应保持中国特色,适应中国国情。  相似文献   
145.
Several theoretical approaches have been put forth to predict and explain the effects of teleconferencing technologies. One approach is to examine the functions of nonverbal signals and to make predictions based on the fact that different teleconferencing technologies allow nonverbal communication to different extents. One of the functions of nonverbal signals is to allow the listener to provide feedback to the speaker in a communication. Prior research has shown that such feedback enhances listener comprehension. In this study, it was hypothesized that different teleconferencing technologies would allow different levels of feedback based on their ability to accommodate nonverbal signals, and this in turn would affect comprehension. An experimental study was conducted to compare comprehension, feedback, and satisfaction in telephone and computer conferencing. The study confirmed that comprehension and speaker satisfaction are related to feedback, but failed to show a relationship between listener satisfaction and feedback. No difference in comprehension, listener, or speaker satisfaction was observed across teleconferencing technologies. Role-related differences were observed between the speaker and the listener. It is suggested that the effects of teleconferencing technologies can be mapped systematically by examining each of the functions of nonverbal signals, one at a time.  相似文献   
146.
释光仪作为考古和矿物研究仪器,以前激发光源和光子计数均为单色光。笔者研制了1种由计算机控制、激发光源可以选择、被测样品发射光是分频计数的选频光释光断代仪。该仪器通过计算机控制可以成功获得结晶固体的光释光谱图。利用选频光释光进行矿物分析,由于得到了光谱图,所以提高了矿物分析和鉴定的准确度,用该仪器测定年代,结果可以互比。本文介绍了该仪器的特点以及软、硬件的研制。  相似文献   
147.
While hackers and viruses fuel the IS security concerns for organisations, the problems posed by employee computer crime should not be underestimated. Indeed, a number of IS security researchers have turned their attention to the ‘insider’ threat. Of this group, several focus on the offender, either in terms of a series of attributes required for perpetration, or with reference to forms of safeguards aimed at negating such behaviour. These studies are complemented by those texts which examine the organisational context in which rogue employees commit computer crime. Currently, however, there has been a lack of insight into the relationship between the offender and the context, during the commission process. To address this deficiency, two criminological theories are advanced. This paper illustrates how the theories, entitled the Rational Choice Perspective and Situational Crime Prevention, can be applied to the IS domain, thereby offering a theoretical basis by which to analyse the offender/context relationship during perpetration. By so doing, practitioners may use these insights to inform and enhance the selection of safeguards in a bid to improve prevention programmes. Furthermore, the importation of the Rational Choice Perspective and Situational Crime Prevention into the IS field opens up potentially new areas for future research.  相似文献   
148.
The policy of overbooking is a rational strategy for minimizing costs in a situation where reserved service is not always honored. Finding the proper level of overbooking is simplified through the use of computer spreadsheet software. Data requirements include the specification of short costs, long costs, and no-show probabilities. Construction of the spreadsheet involves a straightforward entering of expected cost relationships for each overbooking alternative. Once established, the spreadsheet can rapidly calculate and find the optimal overbooking strategy. The spreadsheet is also useful for making rapid recalculations under changing conditions.  相似文献   
149.
With the advent of the microcomputer revolution in the United States, the lodging industry is taking advantage of the new technology. Computerized property management systems for small properties are available at reasonable cost using microcomputers. Both large hotel corporation applications of microcomputers and individual property uses are given. Models for management use of electronic spreadsheet programs for budgeting as well as financial and operational control are shown. The examples use VisiCalc and Lotus 1–2–3. Management training for microcomputer use by the large hotel corporations is also examined. The new technology will hasten the computerization of the lodging industry.  相似文献   
150.
介绍了CALS在物流领域的应用前景,论述了物流技术发展及其智能化方向的理想,概念等有关问题,最后介绍了假想物流系统技术的概念和发展及其应用的意义。  相似文献   
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