Lazarus is a free and open source development tool for the FreePascal Compiler. The purpose of the project is to serve as a Code Repository, Wiki Knowledgebase and support site for converting existing components and libraries to work with Lazarus and FPC
标签： development FreePascal the Compiler
上传时间： 2013-12-20
上传用户：wang5829
国家SQL标准委员会ISO/IEC JTC1 SC32 WG3负责人Keith W.Hare作序推荐。 使用SQL进行数据操作的快速上手指南。 如果你使用如下的数据库系统：Access，MS SQL serve，Oracle，DB2，MySQL，Ingres。 或者任何其他基于SQL的程序，在你开始编写查询之前，本书都能够节省你的时间和精力。 本书针对编写SQL查询为初学者提供了一个按部就班、易于阅读的指导。它包含了上百个带有详细说明的例子。本书为我们提供了理解、修改和创建SQL查询所需的工具。 对于所有数据库设计者来说本书是一本重要的书。它吸取了复杂的数学集合论和一阶谓词逻辑，并且使得这些理论容易让每个人理解。如果你想要学习从初级到中级的SQL课程，本书是你所必需的。
上传时间： 2014-01-23
上传用户：gdgzhym
跨数据库平台: n 支持 oracle 的OCI n 支持DB2的CLI, n 支持ODBC(通过ODBC,可支持SQL serveR,MySQL等) Ø 跨OS平台: n 标准C++语言,支持 unix/linux/windows Ø 使用简单: n 只有一个头文件 n 接口简洁.otl_stream, otl_connect, otl_exception等就可以完成大部分工作 n 相对 ProC等嵌入式开发,代码能相应减少 Ø 性能: n 直接访问数据库API接口,具有API接口的高效率,可靠性 Ø 稳定性: n 开源代码,唯一的代码文件otlv4.h,可以了解所有基于数据库API的实现细节 n 从1996年开始,到今已10余年. Ø 可读性及可维护性: n 标准C++代码,不需要任何预处理 n 使用流的形式,输入输出异常简洁 n 减少大量代码, n 代码结构更加简洁 参考资料: http://otl.sourceforge.net/
上传时间： 2017-06-14
上传用户：cainaifa
SensorSimII is the framework of a simulator that I have been working on to study how future sensor networks should operate. the simulator is written in a modular fashion so that it can be adapted to serve a number of needs. However, please remember that it is still a work in progress. This web page is here just to give a glimpse of the approach we ve taken with this simulator. Likewise this web page is simply preliminary information to attempt to answer some of the questions that researchers might have about this project.
标签： SensorSimII framework simulator working
上传时间： 2013-12-26
上传用户：wsf950131
MySQL is the world’s most popular open source database, sporting a barrier of entry low enough to attract novice developers yet powerful enough to power some of the world’s most popular websites, among them Yahoo!, BBC News, the U.S. Census Bureau, and Craigslist. This reference card was created to help you quickly navigate some of MySQL’s most popular features. Covering topics such as confguration, administration software, backup procedures, SQL features, and user management, this card will serve as a handy desk reference for countless projects to come.
标签： database sporting barrier popular
上传时间： 2017-07-13
上传用户：weiwolkt
Abstract—We describe a technique for image encoding in which local operators of many scales but identical shape serve as the basis functions. The representation differs from established techniques in that the code elements are localized in spatial frequency as well as in space.
标签： technique operators Abstract describe
上传时间： 2014-01-23
上传用户：ruixue198909
Computational models are commonly used in engineering design and scientific discovery activities for simulating complex physical systems in disciplines such as fluid mechanics, structural dynamics, heat transfer, nonlinear structural mechanics, shock physics, and many others. These simulators can be an enormous aid to engineers who want to develop an understanding and/or predictive capability for complex behaviors typically observed in the corresponding physical systems. Simulators often serve as virtual prototypes, where a set of predefined system parameters, such as size or location dimensions and material properties, are adjusted to improve the performance of a system, as defined by one or more system performance objectives. Such optimization or tuning of the virtual prototype requires executing the simulator, evaluating performance objective(s), and adjusting the system parameters in an iterative, automated, and directed way. System performance objectives can be formulated, for example, to minimize weight, cost, or defects; to limit a critical temperature, stress, or vibration response; or to maximize performance, reliability, throughput, agility, or design robustness. In addition, one would often like to design computer experiments, run parameter studies, or perform uncertainty quantification (UQ). These approaches reveal how system performance changes as a design or uncertain input variable changes. Sampling methods are often used in uncertainty quantification to calculate a distribution on system performance measures, and to understand which uncertain inputs contribute most to the variance of the outputs. A primary goal for Dakota development is to provide engineers and other disciplinary scientists with a systematic and rapid means to obtain improved or optimal designs or understand sensitivity or uncertainty using simulationbased models. These capabilities generally lead to improved designs and system performance in earlier design stages, alleviating dependence on physical prototypes and testing, shortening design cycles, and reducing product development costs. In addition to providing this practical environment for answering system performance questions, the Dakota toolkit provides an extensible platform for the research and rapid prototyping of customized methods and meta-algorithms
标签： Optimization and Uncertainty Quantification
上传时间： 2016-04-08
上传用户：huhu123456
This is the second edition of a textbook that is intended for a senior or graduate-level course in an electrical engineering (EE) curriculum on the subject of the analysis of multiconductor transmission lines (MTLs). It will also serve as a useful reference for industry professionals.
标签： Multiconductor Transmission Analysis Lines of
上传时间： 2020-05-26
上传用户：shancjb
The very title of this book is borrowed from the information theory vocabulary, and, quite naturally, it is an outline of this theory that will serve as an introduction. The subject of information theory is the scientific study of communications. To this end it defines a quantitative measurement of the communicated content, i.e. informa- tion, and deals with two operations essential for communication techniques: source coding and channel encoding.
标签： Communication Networks Channel Coding in
上传时间： 2020-05-26
上传用户：shancjb
This work titled A Digital Phase Locked Loop based Signal and Symbol Recovery System for Wireless Channel is intended to serve as a document covering funda- mental concepts and application details related to the design of digital phase locked loop (DPLL) and its importance in wireless communication. It documents some of the work done during the last few years covering rudimentary design issues, complex implementations, and fixing configuration for a range of wireless propa- gation conditions.
上传时间： 2020-05-27
上传用户：shancjb
