10分钟学会SQl第三版 Sams Teach Yourself SQL in 10 Minutes has established itself as the gold standard for introductory SQL books, offering a fast-paced accessible tutorial to the major themes and techniques involved in applying the SQL language. Forta s examples are clear and his writing style is crisp and concise. As with earlier editions, this revision includes coverage of current versions of all major commercial SQL platforms. New this time around is coverage of MySQL, and PostgreSQL. All examples have been tested against each SQL platform, with incompatibilities or platform distinctives called out and explained.
标签: established Yourself standard Minutes
上传时间: 2014-07-07
上传用户:Pzj
Sams Teach Yourself SQL in 10 Minutes has established itself as the gold standard for introductory SQL books, offering a fast-paced accessible tutorial to the major themes and techniques involved in applying the SQL language. Forta s examples are clear and his writing style is crisp and concise. 原版英文书!
标签: introductory established Yourself standard
上传时间: 2015-07-13
上传用户:miaochun888
ELinks is an advanced and well-established feature-rich text mode web (HTTP/FTP/..) browser. ELinks can render both frames and tables, is highly customizable and can be extended via Lua or Guile scripts. It is quite portable and runs on a variety of platforms. Check the about page for a more complete description. ELinks is an Open Source project covered by the GNU General Public License. It originates from the Links project written by Mikulas Patocka. If you want to see ELinks in action check out the screenshots.
标签: ELinks well-established feature-rich advanced
上传时间: 2014-01-22
上传用户:3到15
This is regarding the 4th Generation of the Communication, Where in its not yet established.
标签: Communication established Generation regarding
上传时间: 2017-04-07
上传用户:lmeeworm
This book presents an established methodology for transitioning the people, processes, and technologies in IT environments to the Solaris(TM) Operating System.
标签: transitioning established methodology processes
上传时间: 2017-06-07
上传用户:jeffery
Parallel robotic manipulators can be considered a well-established option for many different applications of manipulation, machining, guiding, testing, control, tracking, haptic force feed-back, etc. A typical parallel robotic manipulator (PM) consists of a mobile platform connected to the base (fixed platform) by at least two kinematic chains called limbs. The mobile platform can achieve between one and three independent translations (T) and one to three independent rotations (R).
标签: well-established manipulators considered different
上传时间: 2017-09-03
上传用户:moerwang
Abstract: This article explores criteria necessary for reliable communication between electric vehicles (EVs) and electric vehicleservice equipment (EVSE). Data will demonstrate that a G3-PLC system has already met the criteria established by the automotiveand utility industries. Multiple international tests prove that a G3-PLC implementation is the optimal low-frequency solution.
上传时间: 2014-12-24
上传用户:逗逗666
设计一种应用于某全地形ATV车载武器装置中的中控系统,该系统设计是以TMS320F2812型DSP为核心,采用模块化设计思想,对其硬件部分进行系统设计,能够完成对武器装置高低、回转方向的运动控制,实现静止或行进状态中对目标物的测距,自动瞄准以及按既定发射模式发射弹丸和各项安全性能检测等功能。通过编制相应的软件,对其进行系统调试,验证了该设计运行稳定。 Abstract: A central control system applied to an ATV vehicle weapons is designed. The system design is based on TMS320F2812 DSP as the core, uses modular design for its hardware parts. The central control system can complete the motion control of the level of weapons and equipment, rotation direction, to achieve a state of static or moving objects on the target ranging, auto-targeting and according to the established target and the projectile and the launch of the security performance testing and other functions. Through the development of appropriate software and to carry out system testing to verify the stability of this design and operation.
上传时间: 2013-11-02
上传用户:jshailingzzh
Some algorithms of variable step size LMS adaptive filtering are studied.The VS—LMS algorithm is improved. Another new non-linear function between肛and e(/ t)is established.The theoretic analysis and computer simulation results show that this algorithm converges more quickly than the origina1.Furthermore,better antinoise property is exhibited under Low—SNR environment than the original one.
标签: algorithms LMS algorithm filtering
上传时间: 2014-01-23
上传用户:yxgi5
This paper introduces an affine invariant of trapezia, and the explicit constraint equation between the intrinsic matrix of a camera and the similarity invariants of a trapezium are established using the affine invariant. By this constraint, the inner parameters, motion parameters of the cameras and the similarity invariants of trapezia can be linearly determined using some prior knowledge on the cameras or the trapezia. The proposed algorithms have wide applicability since parallel lines are not rare in many scenes. Experimental results validate the proposed approaches. This work presents a unifying framework based on the parallelism constraint, and the previous methods based on the parallelograms or the parallelepipeds can be integrated into this framework. Key words: invariant parallelism constraint camera calibration 3D reconstruction
标签: introduces constraint invariant explicit
上传时间: 2014-01-16
上传用户:6546544