Home | Amazing | Today | Tags | Publishers | Years | Account | Search 
Systems Engineering with SysML/UML: Modeling, Analysis, Design (The OMG Press)

Buy
According to the Boeing Commercial Aircraft Company, a Boeing 747-400 aircraft has a maximum gross take-off weight (including a typical 416 passengers, 171 cubic meters of freight in the cargo hold, and over 200,000 kg of fuel) of nearly 400,000 kg. Four behemoth engines push the bird at up to 88 percent of the speed of sound for unbelievable distances, up to 13,500 km, without refueling. The length of the aircraft alone (45 m) is longer than the Wright brothers ’ entire first flight.

But these amazing statistics, after 30 years finally to be eclipsed by even larger passenger aircraft, are nothing compared to the complexity of the system of systems which makes up the Boeing 747-400. The aircraft ’ s electrical systems comprise some 274 km of wiring alone; high-strength aluminum and titanium parts are designed to work both standing still and heated by rapidly passing air. Backup systems keep navigation and life-sustaining systems running if primary systems fail; and even the in-flight entertainment system is one of the more complex systems on earth. In fact, the Boeing 747-400 comprises some 6 million parts, about half of which are simply fasteners like screws and bolts. It ’ s no wonder that a Boeing spokesman once quipped, “ We view a 777 as a collection of parts flying in close proximity. ” As a frequent flyer, I constantly and fervently hope that that proximity goal is respected!

All of these facts reflect a fact that all engineers understand: complexity is difficult to manage, and most interesting systems are complex. Worse, the compounding of systems into systems of systems—e.g., back to our airplane, the electrical, hydraulic, propulsion, lift surface, life support, navigation, and other systems of aircrafts— tends to introduce new complexities in the form of unexpected
(HTML tags aren't allowed.)

Sports Nutrition: Energy Metabolism and Exercise (Nutrition in Exercise & Sport)
Sports Nutrition: Energy Metabolism and Exercise (Nutrition in Exercise & Sport)

Exercise by itself tears down the body. To rebuild that body so that it expresses greater strength, endurance, and speed, requires sound nutritional practices based on fact rather than fad. Those practices must also recognize that specific needs vary greatly according to age, gender, and intensity of exercise.

Sports
...

Sams Teach Yourself Adobe Photoshop CS2 in 24 Hours, First Edition
Sams Teach Yourself Adobe Photoshop CS2 in 24 Hours, First Edition
Create works of art using your computer, Adobe Photoshop CS 2 and Sams Teach Yourself Photoshop CS 2 in 24 Hours. Learn the basics of Photoshop with a minimum of jargon from market-leading author, Carla Rose. Her conversational, friendly approach will make Photoshop seem less intimidating and more manageable to learn. With Carla's help, you...
SharePoint 2010 Enterprise Architect's Guidebook
SharePoint 2010 Enterprise Architect's Guidebook
MICROSOFT COLLABORATION and companion development technologies have really come a long way over the past 20 years. Over this time, many different technologies have come and gone in the blink of an eye. Others have built up momentum, improving with each new version, providing valuable new features to meet the ever-increasing digital...

How to Do Everything Adobe Photoshop CS4
How to Do Everything Adobe Photoshop CS4
Welcome to this book! Before we jump right in and start learning, I want to give you a heads up as to what you can expect going forward. If you’re brand-new to Photoshop, or intimidated by Photoshop, have no fear. We’ll go from the ground up. Even if you aren’t quite sure what Photoshop does, or who uses it, or what jobs you can...
The Official Samba-3 HOWTO and Reference Guide (Bruce Perens Open Source)
The Official Samba-3 HOWTO and Reference Guide (Bruce Perens Open Source)

"The breadth of technical information provided in this book ensures that even the most demanding of administrators will find something they need." -Andrew Tridgell, President of the Samba Team and the original author of Samba

The practical, authoritative, step-by-step guide to cutting IT...

Mac OS X Help Line, Tiger Edition
Mac OS X Help Line, Tiger Edition
With every update, Mac OS X grows more powerful, more dependable, and easier to use--and Mac OS X Tiger is no exception. But along with the new features come fresh issues--new areas to troubleshoot, new functionality to unravel, and new glitches waiting to confound even the savviest Mac users. Not to worry. Best-selling author and Mac guru Ted...
©2021 LearnIT (support@pdfchm.net) - Privacy Policy