字体制作DIY

虽然Ｗｉｎｄｏｗｓ中已经附带了多种不同式样的字体，可其中许多是自己所不需要的，而且还缺少一些非常有特色的字体。要是你希望在制作主页或者给友人写信的时候能够通过特殊的字体来表达你的言外之音，就自己动手来制作一些有特色的字体吧。在此就向大家介绍一种字体制作的方法。 让我们先来了解一下有关字体的知识。在Ｗｉｎｄｏｗｓ９Ｘ中系统使用最多的是＊．ＴＴＦ（Ｔｒｕｅ Ｔｙｐｅ Ｆｉｌｅ）格式的轮廓字库文件，通常可以直接双击进行显示和打印。这种格式的文件可以放大和缩小但不会出现锯齿问题。在Ｗｉｎｄｏｗｓ系统中还有…     

FTT—1：一个基于硬件的故障注入器的设计与实现

故障注入是评价计算机系统可信性的一种重要的试验方法。构造故障注入器是故障注入研究中的一人重要组成部分。此文介绍了ＦＴＴ－１，一个基于硬件的故障注入器的设计与实现。文章讨论了设计与实现硬件故障注入器的关键技术，并介绍了在ＦＴＴ－１的实现中解决这些关键技术的方法。试验结果证明了ＦＴＴ－１用于评价容错计算机系统可信性的有效性。     

测试集自动生成工具TUGEN的设计与实现

测试集自动生成工具的研究是协议一致性测试领域中比较活跃的一个分支，本文在对目前已有的各种测试集生成方法进行分析的基础上，提出了一种新的测试集自动生成方法并对它的实现ＴＵＧＥＮ作了介绍．ＴＵＧＥＮ基于一种称为ＥＢＥ的形式模型，ＥＢＥ模型只对协议的外部行为进行描述，而且可以从协议的Ｅｓｔｅｌｌｅ或ＬＯＴＯＳ描述中转化得到．ＴＵＧＥＮ以协议的ＥＢＥ－ＮＦ描述作为输入，使用我们新提出的一套测试事例生成策略，最后产生出ＴＴＣＮ．ＭＰ格式的测试集．我们用Ｘ．２５ＬＡＰＢ协议的ＥＢＥ－ＮＦ描述作为例子，对ＴＵＧＥＮ     

Java技术在二维图象处理方面的应用（下）

３文字和字体您可以使用Ｊａｖａ２ＤＡＰＩ中的转换和绘制机制对文字和字符串进行处理。在Ｊａｖａ２ＤＡＰＩ中还增加了一些与文字相关的类，用以对文字的布局和字体提供更加完善的控制。３．１管理文字Ｊａｖａ２ＤＡＰＩ提供了一个强化的Ｆｏｎｔ类，它针对字体提供了...     

通过TCP／IP网络访问MS—DOS应用文件

基于ＭＳ－ＤＯＳ平台运行的特殊应用程序在网络环境里如果能够为网络所共享将是十分有用的。为了让ＵＮＩＸ操作系统的机器能够访问,需要有ＴＣＰ／ＩＰ网络协议和相应的支撑软件。本文即介绍了这样一个软件包,包括ＴｅＩｎｅｔｓｅｒｖｅｒ和ＦＴＴｓｅｒｖｅｒ。Ｔｅｌｎｅｔｓｅｒｖｅｒ用来连接ＭＳ－ＤＯＳ机器,运行上面的程序;ＦＴＰｓｅｒｖｅｒ用来在两机之间传输文件。很多其他功能,象身份识别和设置文件访问权限等,Ｔｅｌｎｅｔｓｅｒｖｅｒ和ＦＴＰｓｅｒｖｅｒ支持。     

Frontpage 2000主页制作速成(一)

Ｆｒｏｎｔｐａｇｅ ２０００保留和发展了Ｆｒｏｎｔ－ｐａｇｅ９８的优秀功能，并增加了许多新功能： １．无需编写程序，轻松建立具有专业水准的网站。Ｆｒｏｎｔｐａｇｅ２０００的网站创建和管理工具给用户从未有过的全面控制权。用户可以精确的将每一个元素放置在网页的任何位置，为网站设定专业的、谐调的外观，输入和编辑ｈｔｍｌ原代码，使用最新的网页技术，这一切不需要您编写任何程序。 ２．Ｆｒｏｎｔｐａｇｅ ２０００既可以用来制作网页，还可以用来建设和维护网站。工作组用户可以通过Ｆｒｏｎｔｐａｇｅ２０００使分布在世…     

形式化方法的回顾（续一）

形式化方法的回顾（续一）ＡＲｅｐｏｒｔｆｒｏｍｔｈｅＢＣＳＷｏｒｋｉｎｇＧｒｏｕｐ￥Ｃ．Ｌ．Ｎ．Ｒｕｇｇｉｅｓ（上接１９９３年第３期）２．２并发软件的ＦＤＩ和ＦＳＬ有限状态机（ＦＳＭ：）是用来描述形式系统的语言，曾应用来描述Ａｌｇ。１６０的语法，基于...     

字形技术及OpenType字体文件格式研究

随着Windows操作系统及TrueType字体(TTF)的流行,字形技术的重要性已越来越受到人们的关注。本文介绍了从TrueType、OpenType到Clear Type的最新发展,比较详细地分析了OpenType字体(OTF)文件的结构,解释了其中的重要描述表。用户若能正确掌握OTF字体文件格式,就可以建立自己的特殊字体,并可以在字体应用领域取得良好的应用效果。     

利用Netware网络实现FOXPRO的TTS功能

本文介绍了ＮＥＴＷＡＲＥ网络中事务跟踪处理系统ＴＴＳ的实现原理，并以ＦＯＸＰＲＯ数据库为例，阐述了如何利用ＮＥＴＷＡＲＥ网络的ＴＴＳ实现数据的一致性和完整性。     

TTCN动态行为树的一种编译方法

ＴＴＣＮ（ｔｈｅＴｒｅｅａｎｄＴａｂｕｌａｒＣｏｍｂｉｎｅｄＮｏｔａｔｉｏｎ）是一种用于精确描述抽象测试套的国际标准测试表示法。然而用ＴＴＣＮ描述的抽象测试套是不可直接执行的，必须把它转换为用某一适当可执行语言书写的可执行测试套。本文给出了ＴＴＣＮ核心部分──动态行为树的一种编译方法。     

基于拓扑特征的纳西东巴文象形文字输入方法研究

纳西东巴文字是一种比甲骨文还要原始的图画象形文字,该文针对大量纳西经典古籍资料需要录入、整理、分析的需要,设计一种普通用户即可使用的基于拓扑特征的输入方法。首先针对纳西东巴象形文字的1 561个基本字形的五个拓扑特征-块数、孔数、端点数、三叉点数和四叉点数进行了统计和分析,然后基于Java程序结合TTF字库文件进行了测试,证明了该方法可行。统计结果表明,50%以上的纳西东巴象形文字通过这五个特征可以唯一识别,80%以上的东巴文字通过该方法识别时重复数不高于4,人工输入、识别的效率较高,为纳西东巴象形文字的输入方法提供一种新的思路。     

航空显示信号自动测试技术研究

讨论了航空显示信号的自动测试技术,给出了在采用任意波形发生器、视频信号发生器等ATE通用仪器资源产生光栅笔划显示信号时,根据TTF字形轮廓数据产生字符笔划信号的方法.     

Tool support for the Test Template Framework

This paper describes tool support that has been implemented for the Test Template Framework (TTF). The TTF is a model‐based testing (MBT) method that is especially well suited for unit testing from Z specifications. Although the TTF is a sound MBT method and it has been widely referenced since its first publication, attention in recent years has decayed. In fact, some have argued that generating abstract test cases following the TTF is a manual task requiring its users to perform complex predicate manipulations. This paper shows that these observations are dubious by describing Fastest, a tool that implements solutions for all these issues and, according to many experiments, produces abstract test cases for more than 80% of the satisfiable test specifications. Furthermore, it is claimed that Fastest fulfils the needs of the Z user community regarding MBT tools, which is supported with a range of case studies. Copyright © 2012 John Wiley & Sons, Ltd.     

Refining and extending task–technology fit theory: Creation of two task–technology fit scales and empirical clarification of the construct

Research on task–technology fit (TTF) theory is in need of refinement that is centered around (1) conceptualizations of TTF, (2) operationalizations of TTF, (3) an oversight of “misfit,” and (4) an overemphasis on direct effects. We review TTF to place it in the broader nomological net of related constructs. We differentiate task–technology misfit (TTM) from TTF, and we distinguish two types of TTM, “Too Little” and “Too Much.” Then, we undergo a four-study process to create two satisfactory scales. Finally, we perform two empirical studies to confirm our three-dimensional conceptualization of TTF and TTM in the larger TTF theory framework.     

Knowledge portals in Chinese consulting firms: a task–technology fit perspective

Although knowledge management (KM) has been examined in previous research, the utilization of KM technologies is still not well understood. Hence, in this study, a model was developed to investigate the utilization of KM technologies, specifically, knowledge portals, from the task–technology fit (TTF) perspective. An empirical study was conducted in the Chinese consulting industry to test the validity of the model. The results show that knowledge tacitness, output quality, and compatibility are positively related to utilization. Utilization and compatibility are positively related to performance. TTF is more strongly related to performance than to utilization. Implications of the results are discussed.     

Does culture influence m-banking use and individual performance?

We show evidence on the influence of culture on m-banking use and individual performance, by using a combination of the task-technology fit (TTF) model and two of Hofstede’s cross-cultural dimension scales: uncertainty avoidance and individualism. On the basis of a sample of 204 m-banking users, we show that individualism moderates the relationship between TTF and use, and uncertainty avoidance moderates the relationship between TTF and individual performance. The remaining constructs, which represent the core of the TTF model, can still empirically explain TTF, use, and individual performance of m-banking. Strategies grounded in these factors are suggested for m-banking service providers to better attract and retain users.     

TTF-C60-P衍生物的分子结构和光谱性质的理论研究

用半经验AMI法研究TTF-C60-P衍生物的分子轨道，电荷分布，几何构型。计算结果显示，TTF-C60-P衍生物具有较低的跃迁能。HOMO轨道主要分布在杂环上，LUMO轨道则主要分布在C60上。电荷从富电子的TTF向缺电子体C60转移。理论预测TTF-C60-P衍生物在基态下产生长寿命的电荷分离态。     

An investigation of task-technology fit for managers in Greece and the US

Based on a task-technology fit (TTF) model, this study adds to our understanding of how computer-based information systems (CBIS) support managerial decision making. Based on four views of decision making and various classifications of CBIS, the findings indicate that both the Greek and US managers value CBIS most highly for resource allocation, evaluating alternatives, identifying problems, ranking alternatives, and short-term decision making. Few TTF differences were found between Greek and US managers. One difference, concerning the value of office information systems, may have arisen from technological differences; however, additional research is needed to understand if these TTF differences arise from technological or cultural differences. Two surprising hypotheses emerge from the findings to provide guidance for future research: (1) standard, fixed-schedule, fixed-format information reporting systems (IRS) provide greater value for managers than more flexible decision support systems (DSS), at least for some managerial decision-making activities, and (2) the amount of use of a CBIS is not directly related to its perceived value. Overall, the results indicate that the fit between managerial decision-making activities, and CBIS has considerable room for improvement.     

Extending the technology acceptance model with task–technology fit constructs

During the past decade, two significant models of information technology (IT) utilization behavior have emerged in the MIS literature. These two models, the technology acceptance model (TAM) and the task–technology fit model (TTF), provide a much needed theoretical basis for exploring the factors that explain software utilization and its link with user performance. These models offer different, though overlapping perspectives on utilization behavior. TAM focuses on attitudes toward using a particular IT which users develop based on perceived usefulness and ease of use of the IT. TTF focuses on the match between user task needs and the available functionality of the IT. While each of these models offers significant explanatory power, a model that integrates constructs from both may offer a significant improvement over either model alone. We discuss the theoretical foundation of both these models and present a theoretical rationale for an integrated model. The result is an extension of TAM to include TTF constructs. We test our integrated IT utilization model using path analysis. Our integrated model provides more explanatory power than either model alone. Research using the integrated model should lead to a better understanding of choices about using IT.     

Using a Fit-Viability Approach to Explore the Determinants of E-Government Maturity

E-Government diffusion is of interest to both researchers and practitioners. The purpose of this study is to investigate electronic government maturity and its determinants. We use the Fit-Viability Framework to assess e-Government Maturity in diverse countries. We empirically test the impact of task-technology fit (TTF) and viability on e-government maturity at the country level. The results of partial least squares (PLS) analysis indicate that TTF characteristics along with a country’s viable resources and level of e-government development have a significant impact on e-government maturity. Implications for research and practice are discussed.