设计模式在新生报到系统中的应用与实现

研究了在Microsoft.NET平台下新生报到系统的设计与实现;介绍了系统的功能结构及多层体系结构。对于新生报到系统开发过程中出现的数据不够准确导致管理复杂化这一问题,采用了Observer模式和Mediator模式相结合的解决方法,同时引入Change Manager实现目标和观察者的解耦。接着针对系统用户角色级别太多、权限控制复杂的问题,提出应用Proxy模式的授权机制的解决方法。实践证明,在新生报到系统中运用这两种设计模式有效地提高了系统的数据准确性、安全性及可扩展性。     

基于B/S结构的高职院校新生报到系统的设计与实现

高职院校的招生规模不断扩大,给高职院校的新生报到工作带来了新的挑战。基于B/S构架的高职院校新生报到系统有效解决了传统报到模式效率低下、数据统计不及时的问题。该系统运用ASP技术,采取B/S三层结构,以数据录入、新生报到、数据生成三个模块组成,并利用数据校验的方法保证了数据的准确性,在实际运用中取得良好效果。     

浅谈高校新生报到中的条形码技术应用

条形码技术是一种自动识别技术,应用广泛.将条形码技术运用到新生报到系统中可以大大提高工作效率和准确性.新生报到系统用PowerBuilder语言编写,采用C/S模式.客户端用条形码阅读器读入录取通知书上的条形码信息,通过局域网与服务器中的数据进行比对,程序自动更新新生报到状态等相关信息,打印报到流程单.     

基于PHP的新生报到系统的设计与实现

本文基于PHP语言分析web系统架构下新生报到系统适用的网络架构,根据系统需求设计系统数据库。本文重点阐述了新生报到系统各功能模块设计,相应的管理分配权限等问题。该系统将给新生报到工作带来极大的便利,提高工作效率,减少人为错误的出现,新生的整个报到流程清晰可见,完善的数据汇总统计功能,可以实时掌握数据的变化,及时查看了解全部新生入学的具体情况。     

新生报到系统数据安全分析及对策

网络信息安全是必须重视并加以有效防范的问题。针对近年来高校新生网上报到系统频发的学生信息泄露问题,文章分析了新生报到系统数据安全隐患来源,主要包括网络漏洞、数据丢失及加密情况、网络病毒威胁等;探讨了保障数据安全的对策,主要包括加强系统框架设计、加强数据存储安全、加强数据的保密性以及数据备份等内容。     

基于C#的高职新生报到信息管理系统设计与实现

为了实现高职院校新生报到数据的信息化管理,为辅导员方便、准确、快捷的掌握新生报到数据提供服务,特别是高职院校各个职能部门及时、方便地了解学校新生报到情况,提出构建基于C#的高职新生报到信息管理系统。基于Web Service技术,采用C#.NET 2008+SQL Server 2000等网站开发技术,设计系统总体架构、功能模块和后台数据库,给出了数据库连接、安全访问控制、典型问题解决方案;实现各部门对录取新生信息、新生报到流程、报到新生信息等为一体的有效管理网络应用平台。     

基于大数据的智慧迎新系统应用研究

迎新工作是一个学校管理能力和服务水平的体现。随着高等教育规模的扩大,各大高校招生人数不断增加,新生报到压力剧增。为解决传统迎新过程中存在的流程繁琐、资源浪费等问题,提出了基于大数据的智慧迎新系统,将信息技术与迎新管理工作深度融合,无缝连接财务、教务、后勤等系统,实现各系统间数据互通共享。基于历年迎新数据进行大数据分析和预测,为管理层提供决策支持;系统提供线上线下两种报到方式,实现“一站式”办理,优化新生入学报到手续;一键报到功能自动进行宿舍、班级、学习导师和辅导员分配,自动生成学号、课表、教材清单、交费凭证等报到信息;迎新数据多维度实时展示,让师生和家长直观了解报到情况。智慧迎新系统可以有效提升迎新效率,打造科学规范的迎新服务,实现迎新管理工作的系统化、规范化和自动化。     

高职新生报到管理系统的分析和设计

针对历年学院新生报到人数不确定、现场秩序混乱、手工办公速度慢、各部门之间数据不一致等若干问题,在全面调研同类院校类似问题处理方法的基础上,综合分析出现的原因和发展趋势,提出“一站式”报到流程及八大系统模块：招就处模块、教务处模块、总务处模块、财务处模块、保卫处模块、系部注册模块、公共模块和系统维护管理模块,并对新生报到功能模块进行分析和设计。     

基于UML和.NET的高职院校新生报到系统的设计与实现

基于UML和.NET的高职院校新生报到系统,运用先进的OOD和OOA软件编程思想和方法,使用先进的UML和.NET开发工具,解决了高职院校存在的新生报到中的问题,简化了工作程序,提高了工作效率。     

基于信息化技术促进学校新生报到流程的优化

随着湖南铁道职业技术学院招生规模的不断扩大,传统的纸质的新生报到模式已不适应发展的需要。针对湖南铁道职业技术学院新生报到过程的特点,梳理出了新生报到的主业务流程,提出了新生入学报到系统的体系架构,建立了适于学院的新生入学报到系统。     

European Community policy and the market

Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.     

一种自适应子融合集成多分类器方法

融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。     

Explanation and prediction: an architecture for default and abductive reasoning

Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.     

Three Process Perspectives: Organizations, Teams, and People

This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)^SM and Team Software Process (TSP){^SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.     

基于复小波噪声方差显著修正的SAR图像去噪

提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。     

How do children do mathematics with LOGO?

Abstract  This paper considers some results of a study designed to investigate the kinds of mathematical activity undertaken by children (aged between 8 and 11) as they learned to program in LOGO. A model of learning modes is proposed, which attempts to describe the ways in which children used and acquired understanding of the programming/mathematical concepts involved. The remainder of the paper is concerned with discussing the validity and limitations of the model, and its implications for further research and curriculum development.     

Editorial: Special issue on recent advances in hybrid control theory and applications

正The demands of a rapidly advancing technology for faster and more accurate controllers have always had a strong influence on the progress of automatic control theory.In recent years control problems have been arising with increasing frequency in widely different areas,which cannot be addressed using conventional control techniques.The principal reason for this is the fact that a highly competitive economy is forcing systems to operate in regimes where     

Information for Authors

正Aim The Journals of Zhejiang University-SCIENCE(A/B/C)areedited by the international board of distinguished Chinese andforeign scientists,and are aimed to present the latest devel-opments and achievements in scientific research in China andoverseas to the world’s scientific circles,especially to stimulateand promote academic exchange between Chinese and for-eign scientists everywhere.     

Enhancing a leaf radiative transfer model to estimate concentrations and in vivo specific absorption coefficients of total carotenoids and chlorophylls a and b from single-needle reflectance and transmittance

The relative concentrations of different pigments within a leaf have significant physiological and spectral consequences. Photosynthesis, light use efficiency, mass and energy exchange, and stress response are dependent on relationships among an ensemble of pigments. This ensemble also determines the visible characteristics of a leaf, which can be measured remotely and used to quantify leaf biochemistry and structure. But current remote sensing approaches are limited in their ability to resolve individual pigments. This paper focuses on the incorporation of three pigments—chlorophyll a, chlorophyll b, and total carotenoids—into the LIBERTY leaf radiative transfer model to better understand relationships between leaf biochemical, biophysical, and spectral properties.Pinus ponderosa and Pinus jeffreyi needles were collected from three sites in the California Sierra Nevada. Hemispheric single-leaf visible reflectance and transmittance and concentrations of chlorophylls a and b and total carotenoids of fresh needles were measured. These data were input to the enhanced LIBERTY model to estimate optical and biochemical properties of pine needles. The enhanced model successfully estimated reflectance (RMSE = 0.0255, BIAS = 0.00477, RMS%E = 16.7%), had variable success estimating transmittance (RMSE = 0.0442, BIAS = 0.0294, RMS%E = 181%), and generated very good estimates of carotenoid concentrations (RMSE = 2.48 µg/cm², BIAS = 0.143 µg/cm², RMS%E = 20.4%), good estimates of chlorophyll a concentrations (RMSE = 10.7 µg/cm², BIAS = − 0.992 µg/cm², RMS%E = 21.1%), and fair estimates of chlorophyll b concentrations (RMSE = 7.49 µg/cm², BIAS = − 2.12 µg/cm², RMS%E = 43.7%). Overall root mean squared errors of reflectance, transmittance, and pigment concentration estimates were lower for the three-pigment model than for the single-pigment model. The algorithm to estimate three in vivo specific absorption coefficients is robust, although estimated values are distorted by inconsistencies in model biophysics. The capacity to invert the model from single-leaf reflectance and transmittance was added to the model so it could be coupled with vegetation canopy models to estimate canopy biochemistry from remotely sensed data.     

Mr. Twinn’s bombes

This article discusses the history and design of the special versions of the bombe key-finding machines used by Britain’s Government Code & Cypher School (GC&CS) during World War II to attack the Enigma traffic of the Abwehr (the German military intelligence service). These special bombes were based on the design of their more numerous counterparts used against the traffic of the German armed services, but differed from them in important ways that highlight the adaptability of the British bombe design, and the power and flexibility of the diagonal board. Also discussed are the changes in the Abwehr indicating system that drove the development of these machines, the ingenious ways in which they were used, and some related developments involving the bombes used by the U.S. Navy’s cryptanalytic unit (OP-20-G).