Monday, January 10, 2011

CrazyEngineers Forum

CrazyEngineers Forum

bicycle lock system design

Posted: 10 Jan 2011 03:32 PM PST

Hi
My names jon and i am doing my final piece of my BSc product design course at the university of portsmouth.
My concept idea for my course is to have a new security system that is permeanantly attached to a part of the bike and this system will have an alarm and GPS for if the bike is stolen

what i really need is anyone to fill out my short survey so that i can change my designs accordingly.
here is a picture of concept ideas that i currently have been working on:



Thankyou for your time

Juvenile Crime

Posted: 10 Jan 2011 07:02 AM PST

Hai friends any one know full info about

Juvenile Crime.

Zener Diode VS voltage divider VS DCDC converter VS voltage regulater

Posted: 10 Jan 2011 06:33 AM PST

Hello

When a person wishes to convert from one voltage to another (say for example DC 12v to 9v) several things come to his\her mind , whether to use voltage divider circuit, zener diode circuit, IC voltage regulater circuit or DC\Dc converter ?

Dear crazyengineers what do you think each circuit advantage over the other ? most cases shows that people would go for IC voltage regulater

In my modest experience,

Voltage divider wont be sufficient because the voltage output fluctuate when Ps changes , plus Resistors will require high values and will dissipate alot of heat (loss of unwanted energy) and will draw alot of current from power source which will weaken the battery lifecycle

Zener diode, is temperature sensitive which will effect its voltage regulation, plus it draws 0.6v from the power supply to operate and that will cause some certain voltage drop

Voltage regulater IC are two types , one is linear another is switch regulater
i never used switch regulater and have no idea about it
considering linear regulater it contains the two previous circuits in the chip, plus it has a temperature switch in order to switch it off when it exceeds its temperature limit, while a heat-sink will be recommended to use to cool down the voltage regulater, in order it operates for longer period

DCDC converter can have the advantage that some has the option of having galvanic separation in it, it is able to connect two circuits together which functions in different polarities without one circuit affecting the other circuit in means of causing noize

Crazyengineers correct me if i had made a mistake up there and add what you know guys , and to make it clear, my question what makes each circuit applicable for certain applications , what advantages one on another

big ups

Magma Names Maggie Chen to Head Taiwan Operations

Posted: 10 Jan 2011 06:09 AM PST

HSINCHU, Taiwan, and SAN JOSE, Calif., Jan. 10, 2011 - Magma® Design Automation Inc. (Nasdaq: LAVA), a provider of chip design software, today announced the appointment of Maggie Chen as country manager for the company's Taiwan operations. Chen reports to Charlie Shin, Magma's vice president of Asia-Pacific Sales.

"Maggie brings a great combination of managerial and sales achievement and I expect her experience will help our Taiwan team achieve even greater success," Chin said. "Taiwan is a key market for Magma and I anticipate that Maggie will contribute to our efforts here right away."

Chen's experience includes 10 years with electronic design automation (EDA) companies, including a stint with Cadence Design Systems during which she exceeded quota for three consecutive years while managing a sales group. Before that she served as Taiwan country manager for Verplex Systems until its 2003 acquisition by Cadence. Most recently Chen served as Asia Pacific sales director and Taiwan country manager for EDA startupInPA Systems, where she established the company's Taiwan operation and led the company's expansion into mainland China.

Chen holds a degree from National Chung Hsing University in Taichung, Taiwan.

About Magma
Magma's electronic design automation (EDA) software provides the "Fastest Path to Silicon"™ and enables the world's top chip companies to create high-performance integrated circuits (ICs) for cellular telephones, electronic games, WiFi, MP3 players, digital video, networking and other electronic applications. Magma products are used in IC implementation, analog/mixed-signal design, analysis, physical verification, circuit simulation and characterization. The company maintains headquarters in San Jose, Calif., and offices throughout North America, Europe, Japan, Asia and India. Magma's stock trades on Nasdaq under the ticker symbol LAVA. Follow Magma on Twitter at www.Twitter.com/MagmaEDAand on Facebook at www.Facebook.com/Magma. Visit Magma Design Automation on the Web at www.magma-da.com.

###

Magma is a registered trademark and "Fastest Path to Silicon" is a trademark of Magma Design Automation. All other product and company names are trademarks and registered trademarks of their respective companies.

Forward-Looking Statements:
Except for the historical information contained herein, the matters set forth in this press release are forward-looking statements within the meaning of the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995. These forward-looking statements are subject to risks and uncertainties that could cause actual results to differ materially including, but not limited to Magma's ability to keep pace with rapidly changing technology and the company's products' abilities to produce desired results. Further discussion of these and other potential risk factors may be found in Magma's public filings with the Securities and Exchange Commission (U.S. Securities and Exchange Commission (Home Page)). Magma undertakes no additional obligation to update these forward-looking statements.

Contacts:
Magma Design Automation Inc.
Monica Marmie
Director, Corporate Marketing
(408) 565-7689
mmarmie[at]magma-da[dot]com

Europe PR Contact:
Lloyd Pople
lloyd[at]evokedset[dot]com
07714 765 607

Distributed on behalf of EvokedSet by NeonDrum news distribution service (http://www.neondrum.com)

What is DTMF? Where is it used?

Posted: 10 Jan 2011 05:44 AM PST

What is DTMF? Where is it used?? Its practical aaplication and its efficacies?
Please somebody help me out.

Final Year Project Idea

Posted: 10 Jan 2011 05:32 AM PST

Guys i am thinking of developing a java based android app as my final year project, but i don't have any idea about what to develop? .Please suggest me some ideas


Thanks in advance

m8 Capital Announces US$ 4.2 Million Investment In SCHAD

Posted: 10 Jan 2011 05:04 AM PST

London/Hamburg, January 10, 2011. m8 Capital, the venture capital fund investing exclusively in mobile technology, announced today a US$ 4.2 million investment in German mobile technology company SCHAD.
SCHAD's technology allows engineering staff of global enterprises to remotely access, monitor and manage their plants, systems and facilities from mobile phones (BlackBerry/iPhone/Android/Windows) and other mobile devices (iPads/tablets).
The technology frees maintenance engineers from centralised control centres, and allows them to monitor and manage their plants and facilities from anywhere. As a result, the system can significantly reduce unscheduled downtime, allows for shorter maintenance response times and reduces overall maintenance costs for the world's largest businesses.
SCHAD will use the investment to further develop its product line and to expand globally.
High-Tech Gründerfonds of Germany, who had provided seed and start-up funding to the Company, will also participate in this new funding round, which is being led by m8 Capital.
Within the past two years, SCHAD's technology has been implemented by leading global enterprises including Ford, BASF, Vanderlande Industries, FRoSTA, Deutsche Lufthansa, Volkswagen and the Airports of Cologne/Bonn, Munich and Berlin.
In recognition of its success, SCHAD was recently awarded the 2010 Innovation Award for "Transforming Enterprise Business Performance" by Blackberry. "With an impressive array of international clients like Volkswagen and BASF, SCHAD has proven that its technology enhances profitability of global enterprises. With this investment from m8 Capital, we are confident that SCHAD will emerge as the leading company mobilizing large industrial processes around the globe," said Joseph Kim, Partner at m8 Capital.
"We welcome onboard the m8 Capital team who bring a wealth of know-how and experience that can only aid the future growth of SCHAD GmbH," said Alexander von Frankenberg, Managing Director of the High-Tech Gründerfonds.
"The significant investment from m8 Capital enables us to grow even faster and fully develop our product line. We aim to establish Extend 7000 as the global standard for mobile access to Factory Automation and to Programmable Logic Controllers (PLCs). In m8 Capital, we have a strong and knowledgeable investor who believes in the high potential of our innovative mobile technology," said Christian Schad, the founder of the company.

How To Crash JVM?

Posted: 10 Jan 2011 04:25 AM PST

today i wrote some code and complied it, till it was good. when i executed the code, server got crashed.
error was illegeal bytecode.

i want to know ,by how many ways anyone can crash JVM.

AgOInc adds feasibility analysis to AnXploreranalog design optimization tool

Posted: 10 Jan 2011 04:21 AM PST

January 10th 2011 - AgOInc, atechnology leader in analog and RF circuit optimization software, announces the immediate availability of AnXplorer 2010.12. The new release brings enhanced productivity to analog IC design teams through its new feasibility analysis capability which can rapidly identify a feasible region for circuit design variables.

The new feasibility analysis mode identifies regions of the design space where all circuit sizing rules are met. This rapidly eliminates those parts of the design space which result in unstable circuits. Since only DC operating point simulations are required the mode is computationally efficient and fast. By identifying a 'feasible design space', the following global optimization can run much more rapidly

HillolSarkar, CEO of AgOInc says, "AnXplorer 2010.12 supports three optimization phases: feasibility analysis, global optimisation using a single process, voltage & temperature (PVT) corner and centering over all PVT corners". These modes can be either used in sequence or combined with manual tuning.

The feasibility analysis is enabled by enhanced sizing rule evaluation and reporting. A range of sub-circuits including: - transistors in saturation, transistors in triode region, current mirrors, differential pairs, level shifters, voltage references, current mirror loads and cascode current mirrors are automatically identified. This analysis ensures that all explicit and implicit device sizing rules are met.

The 2010.12 release also provides improved technology parameter support by enabling the definition of different devices corresponding to multiple voltage regimes.

AnXplorer can fit into commonly used design toolsets as it works with industry standard SPICE netlists and simulators. A designer can define an unsized circuit, with design variables, constraints and objectives. AnXplorer will then generate an optimized, centered circuit that meets or exceeds the design objectives across all corners specified by the user. It uses a new multi-algorithmic optimization strategy aided by an expert system.

About AnXplorer
AnXplorer is a new generation circuit optimization tool for analog and RF design. It uses a novel optimization approach based on either simulation or equations. The tool works with industry standard SPICE netlists and supports industry standard simulators including Synopsys HSPICE, Cadence Spectre, Mentor Eldo and Legend Design Technology MSIM. It runs on the Linux operating system.
For more information go to http://bit.ly/doc-ago

About AgOInc
AgOInc, headquartered in Santa Clara, California is an EDA company focused on analog and RF circuit optimization. Its new generation optimization technology enhances the productivity of analog and RF circuit designers and enables yield improvement. AgOInc is a privately held company.

For more information contact:
North America & Asia
HillolSarkar
CEO AgOInc
Tel: +1 408 543 9650
mail: hillol.sarkar[at]ago-inc[dot]com

Europe
Roddy Urquhart
Tel: +44 753 158 7023
e-mail: roddy[at]alpha-star[dot]eu

Distributed on behalf of Alpha Star Ltd by NeonDrum news distribution service (http://www.neondrum.com)

Practical applications of matlab?

Posted: 10 Jan 2011 02:36 AM PST

What are all the practical applications of MATLAB software, other than simulating electrical, electronic, and computer languages? any example practically? And why it is considered the most important tool for Scientists?
THANK YOU

QTP 11.0 New Version with New features

Posted: 09 Jan 2011 11:47 PM PST

Note: The below points about QTP 11.0 is copied from a presentation I have prepared gathering data from various sources.


New Features in QTP
  1. •XPath and CSS based object identification
  2. •Good Looking and Enhanced Results Viewer
  3. •Easy Regular Expressions
  4. •Object Identification
  5. •Dynamic Library Functions
  6. •Test Your GUI and UI-Less Application Functionality in One Test
  7. •Support for Mozilla
  8. •Embed/Run Javascript
  9. •Manage Test Data
  10. •Web 2.0 Toolkit Applications Support
  11. •Automatically Parameterize Steps
  12. •Silverlight Add-in
  13. •Extend WPF and Silverlight Support
  14. •Log Tracking

GSM Activated Car Security

Posted: 09 Jan 2011 11:34 PM PST

This should be my first thread in this forum(CE).:smile:
I'm trying to build a gsm activated car security. Will someone tell me where to tap the signal that will activate (trigger) the security on the gsm module when the number inserted on it is dialed? Or may be a better idea. Thank you.
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