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Programming Lego Robots using NQCThe Lego MindStorms, CyberMaster, and Spybotics robots are wonderful new toys from which a wide variety of robots can be constructed, that can be programmed to do all sorts of complicated tasks. Unfortunately, the software that comes with the robots is, although visually attractive, rather limited in functionality. Hence, it can only be used for simple tasks. To unleash the full power of the robots, you need a different programming environment. NQC is a programming language, written by Dave Baum, which was especially designed for the Lego robots. If you have never written a program before, don't worry. NQC is really easy to use and this tutorial will tell you all about it. Actually, programming the robots in NQC is a lot easier than programming a normal computer, so this is a chance to become a programmer in an easy way.
Writing your first program
In this chapter I will show you how to write an extremely simple program. We are going to program a robot to move forwards for 4 seconds, then backwards for another 4 seconds, and then stop. Not very spectacular but it will introduce you to the basic idea of programming. And it will show you how easy this is. But before we can write a program, we first need a robot.
Building a robot
The robot we will use throughout this tutorial is a simple version of the top-secret robot that is described on page 39-46 of your constructopedia. We will only use the basis chassis. Remove the wholeMicrosoft .NET Mobile WebThere’s a new trend in wireless telecommunications, Internet: Internet connectivity via handheld devices. More people are buying wireless handheld devices such as cellular phones, pagers, personal digital assistants (PDAs), and they demand access to onlineresources at any timefromany location. Over thepast few years a tremendous number of wireless devices different in their characteristics appeared on market. Developments of web application for these devices become challenging experience due to the following reasons [1]:
- ?Different markup languages arenecessary, including HTMLfor PDAs, wireless markup language (WML) for wireless application protocol (WAP) cell phones, and compact HTML (cHTML) for Japanese i-mode phones.
- ?Different display capabilities ? screen size (rows and columns) and color capability.
For example, a device with higher resolution can show more information and have better viewing quality. Some devices can display images and multiple colors, some can make phone calls, and others can receive notification messages.
- ?Devices have different network connectivity, ranging from 9.6-KB cellular connections to 11 MB Wireless LANs. The Mobile Internet Toolkit is thesolution that Microsoft has brought forward to help in mobile web development and overcome the difficulties with it
The mobile internet toolkit overview
The Mobile Internet Toolkit makes fast and easy to build and maintain sophisticated mobile Web applications. It prevents developers from writing lots of custom code to support manydevices intheir mobileWeb applications.Thetoolkit extends theMicrosoft Visual Studio.NET and the ASP.NET so that you can build a single mobile Web application that automatically adapts the display and interaction for a wide variety of mobile devices, including Web-enabled cellIntroduction to C#See what you can find in this pdf
C# – The Big Ideas
A component oriented language
Everything really is an object
Robust and durable software
Preservation of Investment
Hello World
C# Program Structure
Type System
Predefined Types
Classes
Structs
Classes And Structs
Interfaces
Enums
Delegates
Unified Type System
Component Development
Properties
Indexers
Events
Sourcing
Attributes
XML Comments
Statements And Expressions
foreach Statement
Parameter Arrays
Operator Overloading
Versioning
Conditional Compilation
Unsafe Code
Download pdf Introduction to C#Microsoft Uses LiteSpeed™ for SQL Server from Quest Software to Eliminate the Need for Additional StorageMicrosoft uses SAP as its primary Enterprise Resource Planning software. The Microsoft Enterprise Application Services Group depends on a variety of SAP systems for online transaction processing, batch processing and analytical reporting.
The Challenge
Two of these mission-critical systems include SAP Advanced Planning and Optimization (APO) and SAP Business Warehouse (BW). Both systems have four separate environments: technical sandbox, development, test and production. They require a total of eight separate databases and these databases were frequently running out of backup space due to extensive growth.
Steve Bury, Senior Technologist in the Enterprise Application Services (EAS) Group, explained, “Without a compression solution we were on the verge of having to acquire additional database backup storage to accommodate database growth. Just adding a few drives was not an option. Most systems’drivebays were full so we would have been required to add both new drivebays as well as additional controllers. A far more expensive alternative would have been to replace all existing drives with larger ones.”
The Quest Solution
Today the Microsoft EAS Group is using LiteSpeed™ for SQL Server to help compress and speed up the back- up process on all SAP systems: R/3, GTS, APO and BW. All R/3 environments are running on SQL Server 2005 and the other systems will be upgraded soon. As a result, Microsoft estimates it will save up to $186,000 per year for costs associated to resources, storage and hardware. “With LiteSpeed for SQL Server, we recognized a 4-to-1 compression ratio on our SAP database backups which solved our disk spaceSemantic Web meets Web 2.0: The Value of the Mundane for the Semantic WebWeb 2.0, not the Semantic Web, has become the face of “the next generation Web” among the tech-literate set, and even among many in the various research communities involved in the Web. Perceptions in these communities of what the Semantic Web is (and who is involved in it) are often misinformed if not misguided. In this paper we identify opportunities for Semantic Web activities to connect with the Web 2.0 community; we explore why this connection is of significant benefit to both groups, and identify how these connections open valuable research opportunities “in the real” for the Semantic Web effort.
In a recent blog entry on the tech-savvy O’Reilly site, the author queries “Is Web 2.0 killing the Semantic Web?” By way of background, Web 2.0 is elsewhere on O’Reilly described as a service delivered through the Web in a Web way, delivering a “rich user experience” [ref]. Exemplars offered are BitTorrent, Google and Blogs.
The blog writer who asks about Web 2.0 killing the Semantic Web sets his argument as Web 2.0’s instant superficial gratification of people vs the Semantic Web’s deep, meaningful and lasting relationship with data. Web 2.0, he says, is indifferent to technology and just wants to “’give power to the people’, quickly and efficiently” for superficial things like sharing files, opinions and photos. The author then goes on to state that the Semantic Web “is the polar opposite” being all about data and machine readability of that data and “sav[ing] lives.” It is because of Web 2.0’sImporting Microsoft Access tables to SAS DatasetsThere are several ways to import Microsoft Access tables into SAS. They are as follows:
1) Using SAS/ACCESS to ODBC:
1) SAS/CORE, SAS/BASE and SAS/ACCESS interface to ODBC licensed and installed at your site.
2) The Microsoft Access ODBC driver must be installed and configured on your PC.
3) Use the following code to read the Microsoft Access file into a SAS dataset. Libname sasuser ‘c:foo’;
Proc SQL;
Connect to ODBC (prompt);
Create table sasuser.TEST
As select * from connection to ODBC
(select * from tablename);
disconnect from odbc;
quit;
- ‘Prompt’will activate a pop-up window where you can choose your data source name. Alternatively, you can use ‘DSN=’in the parenthesis and specify your data source name.
- ‘sasuser.TEST’ is the name of the SAS dataset you will create from this query.
- ‘tablename’must be the specific unit of data that we are reading.
For Microsoft Access the DSN references the database(.MDB file), and the ‘tablename’refers to the table in the database.
Download pdf Importing Microsoft Access tables to SAS DatasetsHow to Import Data into Microsoft AccessThis tutorial demonstrates how to import an Excel file into an Access database. You can also follow these same steps to import other data tables into Access, such as dbf files or txt files, with some minor variation. This document uses some standard database terminology, referring to columns as fields and rows as records.
Working with data in Microsoft Access databases can be preferable to working with spreadsheets for a number of reasons. One database file can hold several tables, which makes consolidating and organizing data easier. Databases are also great for calculating summaries and aggregating data more efficiently than a spreadsheet. Access is a relational database, which means that you can bring related data stored in different tables together to summarize and calculate data; a feat that a spreadsheet like Excel cannot perform. Databases are a necessity when working with large datasets, as spreadsheets have a limit of 65,000 records. Finally, Microsoft Access databases are compatible with ArcGIS, as tables within Access databases can be directly accessed by ArcGIS and added to ArcMap. Tables can then be joined to boundary files based on a common field, and the data within the tables can be mapped. This is highly preferable to working with table in the dbf file format, which has very particular syntax rules that makes them difficult to work with. Access databases can also serve as geodatabases for holding boundary files and data tables (for instructions on importing shapefiles into Access, see the Import Shapefiles to Access tutorial).
NOTE –AutoCAD® LT 2006 TutorialIn order to become effective in using a CAD system, we must learn to create geometric entities quickly and accurately. In learning to use a CAD system, lines and circles are the first two, and perhaps the most important two, geometric entities that we need to master Copyrighted the skills in creating and modifying. Straight lines and circles are used in almost all technical designs. In examining the different types of planar geometric entities, we can see that triangles and polygons are planar figures bounded by straight lines. Ellipses and splines can be constructed by connecting arcs with different radii.
As we gain some Material experience in creating lines and circles, similar procedures can be applied to create other geometric entities. In this lesson, we will examine the different ways of creating lines and circles in AutoCAD® LT 2006.
Download PDF for AutoCAD® LT 2006 TutorialA MySQL TutorialThis part will help you familiarize yourself with MySQL by providing a tutorial for you to try. As you work through it, you will create a sample database and some tables, and then interact with the database by adding, retrieving, deleting, and modifying information in the tables. During the process of working with the sample database, you will learn the following things:
• The basics of the SQL language that MySQL understands. (If you already know SQL from having used some other RDBMS, it would be a good idea to skim through this tutorial to see whether MySQL's version of SQL differs from the version with which you are familiar.)
• How to communicate with a MySQL server using a few of the standard MySQL client programs. As noted in the previous section, MySQL operates using a client/server architecture in which the server runs on the machine containing the databases and clients connect to the server over a network. This tutorial is based largely on the mysql client program, which reads SQL queries from you, sends them to the server to be executed, and displays the results so that you can see what happened. mysql runs on all platforms supported by MySQL and provides the most direct means of interacting with the server, so it's the logical client to begin with.
• This tutorial uses my_super_db as the sample database name, but you might need to use a different name as you work through the material. For example, someone else on your systemNT1 Enhance Users Manual pdfThe NT1 ENHANCE Network Solution (combined ISDN Network Terminal + Terminal Adapter) is an ideal communication product for the Internet and digital communication era. It provides high speed and high quality transmission. The NT1 ENHANCE supports : 1. Two analog ports (TEL-1 and TEL-2) 2. One digital port (RS232 Port) 3. One USB port 4. Two S/T ports. The two analog ports act like two regular telephone lines, which can be connected to regular telephone, answering machine, fax and modem products. Also, the NT1 ENHANCE can provide flexible functions like: supplementary service, call screening, speed dial and global call function to meet user’s requirements.
The digital port with the RS232 link can be connected to PC to support data communication with remote site. Otherwise you may choose USB port to connect with your PC. Both of them support most popular protocols such as V.110, V.120, X.75, X.25 on D channel, PPP (Point-to-Point Protocol), ML-PPP (Multi-Link PPP), BACP (Bandwidth Allocation Control Protocol) / BOD (Bandwidth On Demand) function. With the ML-PPP, the entire 128k ISDN bandwidth can be used to access the Internet. The BOD function can utilize dynamic bandwidth demand under MLPPP connection. Under ML-PPP data connection, the NT1 ENHANCE will automatically release one B channel for voice communication when the user picks up the phone to make a call and returns to two B channels for ML-PPP when the phone hangs up. With the BACP function, the 128k capacity of ISDN can be utilized fully. The NT1 ENHANCE is equipped
