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
跨數據庫平臺:
n 支持 oracle 的OCI
n 支持DB2的CLI,
n 支持ODBC(通過ODBC,可支持SQL ServeR,MySQL等)
Ø 跨OS平臺:
n 標準C++語言,支持 unix/linux/windows
Ø 使用簡單:
n 只有一個頭文件
n 接口簡潔.otl_stream, otl_connect, otl_exception等就可以完成大部分工作
n 相對 ProC等嵌入式開發(fā),代碼能相應減少
Ø 性能:
n 直接訪問數據庫API接口,具有API接口的高效率,可靠性
Ø 穩(wěn)定性:
n 開源代碼,唯一的代碼文件otlv4.h,可以了解所有基于數據庫API的實現細節(jié)
n 從1996年開始,到今已10余年.
Ø 可讀性及可維護性:
n 標準C++代碼,不需要任何預處理
n 使用流的形式,輸入輸出異常簡潔
n 減少大量代碼,
n 代碼結構更加簡潔
參考資料:
http://otl.sourceforge.net/
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.
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.
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.
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
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.
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.
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.
