大学生综合测评系统的设计与实现

本文是基于WEB的一个典型应用,主要运用了ASP.NET技术,SQLSEVER2005数据库,采用B/S模式。基本功能有:系统维护,学生信息数据输入,反馈信息输入,学生成绩数据计算,数据备份与事件记录,数据查询和打印输出等,其中学生成绩数据计算模块、反馈信息输入模块与数据查询和打印输出模块是系统的重点模块。该系统利用计算机进行学生综合测评管理代替了原有的人工管理方式,节省大量的人力、物力,并且易于操作,可以更加方便地对学生成绩数据进行管理和计算,极大地提高了管理的效率。     

水利水电工程地质建模与关键技术分析

三维地质建模软件是计算机技术在地质勘测工作中应用的重点和发展的方向。它将大量地质资料和地质人员分析判断结果抽象为可视化的地质模型,使复杂的空间关系可视化。通过对模型的旋转,从不同的角度观看模型,形象直观。它充分利用计算机管理和分析的手段,将数据的数输入、规模指数的计算、模型测算、成果输出综合为一个数据流,实现了全数字化信息处理,为快速,有效、准确地进行水利水电工程提供良好的现代化工具。     

Productivity and computers in Canadian banking

Canadian banks have invested millions in computer systems in the last two decades. Yet the banks and outside observers have been uncertain that these investments have had net benefits. In this paper, unique data collected directly from a bank is used to investigate the impact of these investments on bank output, input and productivity. Using data from 1974–1987, a translog cost model is estimated. Both capital and labor are divided into information and noninformation inputs. The results are generally consistent with economic theory. The attempt to separate technical change from possible scale effects is very sensitive to alternative specification. Overall there has been some productivity growth associated with the changing computer technology. However, many of the benefits seem to have accrued to the customer and have not directly lead to gains for the bank.     

利用组织机构代码数据库自动分析企业经济行业的实践方法

组织机构代码信息是我国重要的基础信息数据资源。文章以实际组织机构代码数据库中相关信息字段为基础,依据现行国民经济行业分类标准,分析设计并提出了一种计算机辅助的组织机构经济行业自动分析方法。该方法能有效提高组织机构所属经济行业信息客观判别的可靠性和录入的自动化程度,减少录入过程中主观因素导致的错误,从而提升组织机构代码库的整体质量。     

基于云计算的虚拟桌面的架构方案探析

虚拟桌面是典型的云计算应用,它能够在云中为用户提供远程的计算机桌面服务。服务提供者在数据中心服务器上运行用户所需的操作系统和应用软件,然后采用桌面显示协议将操作系统桌面视图以图像的方式传送到用户端设备上。同时,服务器将对用户端的输入进行处理,并随时更新桌面视图的内容。通过分析某企业虚拟桌面的需求,探讨基于云计算概念设计虚拟桌面的架构方案。     

基于符号学的笔记本电脑翻转方式的研究

现有笔记本电脑市场的发展极为迅速,为了适应市场的要求各大公司企业对笔记本的创新投入了更大的人力,物力,财力。笔记本的创新除了在于内部的硬件、软件的更新外,其外观和内部的结构也是十分主要的组成部分,而其翻转的方式就是外观和结构创新的主要的组成因素,其发转方式的改进成了笔记本电脑创新的重要的一部分,也是带动其销售其重要的增长点之一。本文基于符号学的研究方法对其翻转方式进行初步研究。     

AGGREGATION VERSUS DISAGGREGATION IN INPUT–OUTPUT ANALYSIS OF THE ENVIRONMENT

Analysts carrying out input–output analyses of environmental issues are often plagued by environmental and input–output data existing in different classifications, with environmentally sensitive sectors sometimes being aggregated in the economic input–output database. In principle there are two alternatives for dealing with such misalignment: either environmental data have to be aggregated into the input–output classification, which entails an undesirable loss of information, or input–output data have to be disaggregated based on fragmentary information. In this article, I show that disaggregation of input–output data, even if based on few real data points, is superior to aggregating environmental data in determining input–output multipliers. This is especially true if the disaggregated sectors are heterogeneous with respect to their economic and environmental characteristics. The results of this work may help analysts in understanding that disaggregation based on even a small amount of proxy information can improve the accuracy of input–output multipliers significantly. Perhaps, these results will also provide encouragement for preferring model disaggregation to aggregation in future work.     

液晶汉显模块HZ132-64B30在单片机开发系统中的应用

文章针对单片机开发系统中需要汉字输入和显示的问题,提出利用自带汉字库、内嵌先进的智能拼音输入法、串行接口控制、132×64点液晶汉显模块HZ132-64B30来实现单片机开发系统中的汉字输入与显示,给出了硬件电路和软件流程图,设计方案简单成本低,具有广泛的应用价值。     

计算机代替纸带阅读机在数控机床上的应用

采用计算机代替发那科11系统纸带阅读机输入输出程序,实践证明,系统具有高效性、精确性和适应性。     

WHICH INDUSTRIES TO BAIL OUT FIRST IN ECONOMIC RECESSION? RANKING US INDUSTRIAL SECTORS BY THE POWER-OF-PULL

There have been intense debates regarding which industrial sectors should be prioritized for receiving bailout in economic recessions. This paper takes a network perspective to rank sectors according to the Power-of-Pull (PoP), i.e. a sector's power to pull the overall economy. An eigenvector method is employed to assess the PoP of sectors in the USA, using input–output data from 1998 to 2010. The results support bailout to the motor vehicle sector, but argue against bailout to public infrastructure, health care and information technologies design and service sectors, and also reveal the continual decline of PoP ranking of computer and electronics manufacturing sector over time. These results confirm some but also show little support to some other economic revival policies of the Obama Administration in the USA.     

Some Applications of Input–Output Analysis in a Gold Mine

In this paper, some applications of a mixed physical-financial input–output model for a large gold mine in China are described. This mixed input–output model is a basic part of the mine's decision-making system, called an interactive and hierarchical multi-objective feedback decision-making system of the gold mine's production and management. The model is used for the following: (1) to analyze quantitatively how the changes in the economic, technical and geological factors affect the mine's production and management; (2) to search for a series of bottleneck components in the mine when the capacities of some components of the mine change; (3) to optimize mine planning with the help of mathematical programming (linear programming, 0–1 programming) and computer simulation.     

Identification of simultaneous equation models with measurement error: a computerized evaluation

Rank conditions for identification in structural models are often difficult evaluate. Here we consider simultaneous equation models with measurement error and we show that previously published rank conditions for identification are not well-suited for evaluation. An alternative rank condition is derived and a computer algebra program is presented that takes care of both the construction and the computation of the rank of the relevant Jacobian matrix. It uses the parameter restrictions as input in order to characterize the identification situation of the individual parameters in the output.     

Does It Make Sense to Apply the Static Open Input–Output Model for Imputation and Structural Decomposition?

This paper aims to stimulate discussion on the question concerning whether input–output (10) analysts should go on applying the static open 10 model in times when data supply and computer capacity allow us to switch to semi-closed 10 models, which are rated as comparative improvements. It is argued that the most frequent of the open 10 model's applications, i.e. imputations and structural decompositions, with a switch to a semi-closed model, lose the properties which make them so attractive: imputations no longer are straightforward assignments of production and primary inputs to the components of total final demand; structural decomposition no longer is an additive assignment of changes of production and primary inputs to sources of structural change. In the author's opinion, imputations and structural decompositions on the basis of the open 10 model should be abandoned.     

探讨大数据下网络安全的隐患与防范

在大数据时代下,计算机网络得到空前发展,资源获取方式更加快速与高效,不断改变着人类的生产生活。但随着计算机的进步,更加考验计算机网络的安全性,以保障个人网络信息不被泄漏。论文探讨大数据时代下计算机网络安全问题,针对计算机网络安全的隐患提出对应的防范措施,以期为用户提供安全的网络平台。     

PLC中输出滞后输入的浅析

可编程控制器(PLC)是一种新型的通用自动控制装置,具有功能强、使用灵活、可靠性高、环境适应性好、编程简单等优点,但其缺点是:工作速度较计算机慢,输出对输入的响应有滞后现象;因此,在设计PLC控制系统时,分析和研究PLC输入/输出响应的滞后原因非常重要。     

A stochastic model for predicting discharges: applications for achieving occupancy goals in hospitals.

In this paper a model based upon probability theory has been developed for predicting patient discharges from hospital units. Also, a study performed to obtain patients' length-of-stay distributions has been described. The paper includes a discussion on occupancy goals for hospital units and an application of the model in attaining those goals. Due to the availability of large computer facilities in many hospitals it is feasible to incorporate the model into a hospital's management information system to provide valuable input for various management functions such as decision making, planning and formulation of policy.     

计算机数据处理中云计算技术的应用分析

随着科学技术的飞速发展,计算机技术的应用范围越来越广,生产和生活中的数据量日益增多。传统的计算机数据处理方法很难满足大数据应用的需求,需要应用基于云计算的数据处理技术来有效地处理数据。因此,论文对计算机数据处理中云计算技术的应用进行分析。     

计算机硬盘常见故障及处理方法探讨

随着社会经济的高速发展,计算机技术逐渐普及到社会各个领域当中,计算机逐渐成为人们生活、办公、娱乐等不能离开的工具。但是在不断的发展与使用过程中,计算机硬盘经常会出现一些故障,影响计算机的正常使用。特别是计算机大多都是针对私人使用,必然会存在很多的重要数据,一旦硬盘出现了故障,所造成的后果不堪设想。为了更好的保障计算机能正常使用,本文基于计算机硬盘一些常见故障进行分析,并尝试性提出一些处理方法,以作参考。