c programming guide for beginners

Ngày tải lên: 13/12/2013, 00:14

... to CMS concepts. The second part is focused on starting an account, installing Drupal with a timesaving “one-click” installation tool, and covering important basics such as security and basic configuration. ... Google Account, go to Google.com, click the “Sign-in” link, and click the “Create an Account now” link.) Then, on the next page, click the Create site button (see Figure 2.6). The Site creation ... introduced to adding content to the site, which includes learning about various modules that can add additional features and functions. The third part introduces some techniques and concepts for...

Ngày tải lên: 29/05/2014, 15:45

... the University of Colorado Health Sciences Center in Denver, called me a while back for some advice. She was working on an online course to educate patients about pancreatic cancer and was frustrated ... one speci c time) Potential Cons: Online Learning Lack of visual cues Technological and access hurdles Favors those who communicate well in writing Immediate feedback Visual cues Ease of social ... exact script when they phone the call center to complain about defective merchandise, for example, why should we train call-center reps to memorize one rigid script? An analysis of how the content...

Ngày tải lên: 03/06/2014, 02:04

... statements: constructs used in Bash to test conditions.ã Chapter 8: Interactive scripts: making scripts user-friendly, catching user input.ã Chapter 9: Executing commands repetitively: constructs used ... its configuration files and decides which services to start or Bash Guide for Beginners Chapter 1. Bash and Bash scripts 18 Chapter 1. Bash and Bash scripts In this introduction module we Describe ... $- himBH In non-interactive shells, the prompt, PS1, is unset. Bash Guide for Beginners Chapter 1. Bash and Bash scripts 9 franky ~> printenv CC=gcc CDPATH=.:~:/usr/local:/usr:/ CFLAGS=-O2 -fomit-frame-pointer COLORTERM=gnome-terminal CXXFLAGS=-O2...

Ngày tải lên: 13/07/2014, 08:11

... electronic control- lers, and excludes mechanical and pneumatic control systems. The user, who is faced with choos- ing a controller for his particular application, will be shown initially which ... of ways to carry out this task: me- chanical, pneumatic, electrical, mathematical. The mechanical controller, for example, alters a sig- nal through a lever system, the electronic controller ... be comprehensive. Mechanical variations: - Compact controllers (process controllers) contain all the necessary components (e.g. display, keypad, input for setpoint etc.) and are mounted in a case...

Ngày tải lên: 07/08/2014, 15:20

... and non-linear characteristics Dynamic characteristic The dynamic response of the process is decisive for characterizing the control loop. The dynamic characteristic describes the variation in the ... process 2.1 Dynamic action of technical systems The process is the element of a system which has to be controlled in accordance with the applica- tion duty. In practice, the process represents ... be corrected by applying an opposing MV. An excessive change in MV could cause the process value to swing back below the desired setpoint, which is why control of such a process is more difficult. ...

Ngày tải lên: 07/08/2014, 15:20

... working point correction y / % Controller characteristic Permanent control deviation Setpoint w X = 100 C T / C T / C 100 50 40 100 150 200 300 400 Static process characteristic 400 200 25 ... addition, controllers with a rising characteristic (direct operating sense) are used for certain processes. For instance, the manipulating variable in a cooling process must decrease as the process ... the static characteristic of the process is known, the resulting control deviation can be found di- rectly. Fig. 33 shows the characteristic of a P controller with an X P band of 100 C. A setpoint...

Ngày tải lên: 07/08/2014, 15:20

... increased tendency to overshoot, because of this I component, and the control becomes a little more sluggish. Accurate stable control of processes affected by delays can be achieved by a P controller, ... accepted as given, good control quality can only be achieved by a suitable choice of controller type and an appropriate optimiza- tion. The disturbances can act at different points in the process. ... However, it could happen that the control loop becomes unstable, and that the manipulating variable and process variable perform periodic oscil- lations. Under certain circumstances, this could result...

Ngày tải lên: 07/08/2014, 15:20

... set con- tact spacing, because the final pulse runs the actuator into the contact spacing and thereby redu- ces the control deviation. As the actuator drive has the same characteristic for clockwise ... the contact spacing. If a process enters the contact spacing, the P component is not effective. In the contact spacing, only the I and D components are effective, and in principle the process ... resistance thermometer together with the necessary electronic circuitry takes the place of the bimetallic switch. Fig. 52: Characteristic of a discontinuous controller The discontinuous controller...

Ngày tải lên: 07/08/2014, 15:20

... Additive switched disturbance correction Controller Process Auxiliary controller y w x z Controller Process y w x z z y y z c) Multiplicative switched disturbance correction Controller Process w x z z 0—100% K P ... switched distur- bance correction takes into account any offset shifts in the process. Controllers that allow such a switched disturbance correction to be implemented (compact controllers), normally ... actuating controllers, with PI or PID action. With microprocessor controllers, func- tions such as ratio control can usually be configured directly. 6.8 Multi-component control In a multi-component control...

Ngày tải lên: 07/08/2014, 15:20

Ngày tải lên: 12/08/2014, 18:21

... Almeroth TCP/IP Sockets in Java: Practical Guide for Programmers Kenneth L. Calvert and Michael J. Donahoo TCP/IP Sockets in C: Practical Guide for Programmers Michael J. Donahoo and Kenneth L. Calvert JDBC: ... experience with C# and Microsoft Windows. You are expected to be conversant with C# concepts such as classes, methods, interfaces, and basic inheritance. We assume that you have access to a Microsoft ... Spielman Java: Practical Guide for Programmers Zbigniew M. Sikora The Struts Framework: Practical Guide for Java Programmers Sue Spielman Multicast Sockets: Practical Guide for Programmers David...

Ngày tải lên: 13/08/2014, 08:21

... instance of TcpListener listens for TCP connection requests and creates a new socket (in the form of a TcpClient or Socket instance) to handle each incoming connection. 2.3.1 TCP Client A TCP client ... incoming connections: lines 29–53 ■ Accept an incoming connection: line 35 The sole purpose of a TcpListener instance is to supply a new, connected TcpClient instance for each new TCP connection. ... the TCP echo client with a graphical interface. TcpClient Summary Description TcpClient provides simple methods for connecting to, sending, and receiving data over a TCP connection. The TcpClient...

Ngày tải lên: 13/08/2014, 08:21

Ngày tải lên: 13/08/2014, 08:21

Ngày tải lên: 13/08/2014, 08:21

Ngày tải lên: 13/08/2014, 08:21

Ngày tải lên: 13/08/2014, 08:21

Ngày tải lên: 13/08/2014, 08:21

Ngày tải lên: 13/08/2014, 08:21

Ngày tải lên: 13/08/2014, 08:21