Wednesday, February 23, 2011

CrazyEngineers Forum

CrazyEngineers Forum

Brayton Cycle modelling - optimum system design

Posted: 23 Feb 2011 11:53 AM PST

Hi
I am looking to model a gas turbine (using the Brayton cycle) that will be able to power an x amount of daily electricity load using Matlab.

Using the basic Brayton cycle how can I work backwards i.e to input the daily load and thus be able to identify what specifications the most ideal gas turbine should have?

Thanks

JK Lasers Set To Participate In Medtec UK 2011

Posted: 23 Feb 2011 07:50 AM PST

Laser Manufacturer to Promote Benefits of Lasers for Medical Device Processing

Industrial laser manufacturer, JK Lasers (part of the GSI Group), will be participating in this year's Medtec UK exhibition, part of a series of events designed specifically for the medical device manufacturing industry.

The NEC, Birmingham, will play host to a wide range of companies between 6-7 April 2011, allowing them to showcase the very latest technologies to manufacturers in the medical field.

Lasers have become a particularly popular tool in this industry, due to their ability to cleanly process a range of materials to a high standard, at rapid speeds.

JK Lasers will be on hand to speak to visitors about the benefits of using industrial lasers to weld, cut and drill precise medical devices, surgical instruments and implants.

The company's portfolio of products includes both Fiber and Nd:YAG lasers, ensuring that there is a suitable laser available for almost any manufacturing process.

For further information about laser processing in the medical device sector and JK L

Vilant Systems Oy and Swisscom Auto-ID Services AG merge their RFID activities

Posted: 23 Feb 2011 06:24 AM PST

Helsinki, Finland and Berne, Switzerland – 23 February 2011 – Two strong market players in RFID services, Vilant Systems Oy, one of the leading RFID suppliers in Europe with 150 installations in 20 countries, and Swisscom Auto-ID Services AG, the leading RFID provider in Switzerland, have agreed to merge their RFID activities. The companies have worked as partners in the past. Since the growth in the RFID market is enormous, this merger will help to further synchronise the activities and strengthen the market presence of both companies.
As part of the deal, Swisscom will sell its stake in Swisscom Auto-ID Services AG to Vilant Systems Oy, following which Swisscom will own a minority stake in Vilant Systems Oy. The Swiss company will operate under Vilant's brand and therefore the name Swisscom Auto-ID Services AG will change to Vilant Systems AG. All seven employees of Swisscom Auto-ID Services AG will continue to work for the renamed company and will keep on providing high-quality RFID services to existing and new customers in Switzerland as Vilant expands its central European footprint.
From 1 May 2011, Vilant Systems AG will be led by Vilant's co-founder and Chairman, Antti Virkkunen. While Antti will assume this new role, Vilant's other co-founder Ville Kauppinen will take the role of Chief Executive Officer of Vilant. Current Swisscom Auto-ID Services CEO Werner Friedli will lead the business until his retirement at the end of April 2011.
"We have extensive experience and a long track record in the successful deployment of RFID solutions for large international companies including Nokia, ABB, Volvo and STX Europe," says Ville Kauppinen, CEO and co-founder of Vilant. "Swisscom Auto-ID Services brings additional expertise and a solid customer base to Vilant. Together, we will have a stronger presence in Central Europe and will be able to serve our customers with local resources."
RFID technology brings visible improvements in the efficiency of material flow in the supply chain and asset management. These have been two areas of concentration for Vilant since its founding in 2002. Today Vilant is one of the fastest growing technology companies in Europe, with a five-year growth rate of 980%.
A subsidiary of Swisscom AG, Swisscom Auto-ID Services was founded as a start-up company in October 2005. Today Swisscom Auto-ID Services is the leading Swiss provider in the area of Auto-ID solutions, with a focus on RFID. The services it offers include consulting, implementation and operation. Among its customers are Swiss Post, Migros, Swisscom and DHL.

Maglev trains

Posted: 23 Feb 2011 06:17 AM PST

Hi guys!
I'm really confused with the maglev trains, i've understood how they got lifted up but i couldn't get how they move forward. will they follow motor principe?

which microcontroller

Posted: 23 Feb 2011 05:26 AM PST

i am planning to learn microcontroller in my summer internship program. currently we have 8085 microprocessor in our course. So which microcontroller i should learn AVR , PIC OR 8051 ? EASINESS is not my priority, but it should be beneficial.

Samsung May Release Galaxy Tab With 8.9? Screen

Posted: 23 Feb 2011 05:00 AM PST

Samsung’s first tablet, the mighty Samsung Galaxy Tab had good 7″ screen. Then there were talks of standardizing the tablet screen and Samsung Galaxy Tab 10.1 had a good 10.1″ screen. However, the engineers at Samsung must have realized that 10.1″ may not suit everyone – considering the mobility aspect of the tablet. There are [...]

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6mm Thick Pico Projector: World’s Smallest Projectors

Posted: 23 Feb 2011 05:00 AM PST

Imagine that you want to give a power point presentation at a business conference and the office projector doesn't start at the eleventh hour. What will you do? You can either postpone the meeting or call someone to repair the printer or bring another printer and set it up. But if you are aware of [...]

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Topics You'd Like Us To Write About Via 'VoiCE'

Posted: 23 Feb 2011 04:30 AM PST

CEans,

I'm sure you must be regularly checking out VoiCE - our official blog. It's full of awesome articles written by our talented authors to keep you updated about the latest in engineering, technology, jobs and many other topics. If you aren't - you are missing out something very exciting!

Make sure that you're a regular reader of VoiCE.

With that, we'd like to know what topics would you like us to write about?

Graphene As An Application of Nanotechnology

Posted: 23 Feb 2011 04:10 AM PST

Carbon, once again has surprised the world as it had been doing since years. This time it is its aberrant electronic spectrum that has made it so special. Graphene, a form of carbon is a basic element of some of carbon allotrope.* This material is believed to have substantial potential to open new ways in [...]

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Openings At Sunguard Pune Windows (VMWare) Admins

Posted: 23 Feb 2011 04:08 AM PST

Sunguard is hiring VMWare professionals. The desired experience is between 1-4 years and the selected candidates will have following responsibilities -

  • Install and configure ESX servers and Virtual Center.
  • Troubleshooting ESX server and Virtual Center using VIC and command line (SSH or console)
  • Work with engineers located locally and overseas
  • Perform change tasks (ITIL process) on Virtual Center and ESX servers.
  • Upgrading/Patching Virtual infrastructure
Desired skills -

  1. Knowledge of SQL( for VC installation and upgrade).
  2. Knowledge of Linux is added advantage
  3. Certification on VMware & SAN is added advantage.
  4. Certification on Windows
  5. Comfortable working with short deadlines
  6. Excellent communication skills
  7. Comfortable taking direction and adhering to policy
  8. English written and spoken language skills
  9. Basic Concepts of Networking & TCP/IP, DNS, DHCP etc

Send your updated resumes to - shobhit.bhatia {AT} sungard.com

PS: Mention "via: CrazyEngineers.com" in the title of your email!

Want To Be A Genius? Try Thinking Cap!

Posted: 23 Feb 2011 03:10 AM PST

When I was a kid, I always used to imagine (or say daydream!) that I should have some superpower that will somehow fill my brain with the knowledge from the whole book without actually reading it. Anyway, that is not something really happening in the world today. Yet, imagine a cap that increases your brain [...]

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Thinking of getting myself a tablet pc. Any ideas about the Olive pad?

Posted: 23 Feb 2011 02:43 AM PST

With the slew of tablet pcs coming out, i felt that i needed to have one ( all geeks justify gadgets this way :))..liked the dell streak and the olive pad tablet pc. trouble is i am in a tizzy on which one to buy. I like the dell since it is a wee bit more portable compared to the olivepad tablet. However the olive gives me a lager screen (which makes angry birds easy to play lol) and a few freebies like maps subscription, leather care, free coffee( kidding) ...but no flash ..so which is better..??

Why is glass transparent? - Professor Phil Moriarty, Sixty Symbols

Posted: 23 Feb 2011 02:07 AM PST

Sixty Symbols regular Professor Phil Moriarty discusses transparent glass and the so-called energy gap.

Diaspora: The Open Source Social Network

Posted: 23 Feb 2011 02:00 AM PST

Ever feared if the photos you upload on social networking sites can be accessed by unknown hacker or your latest status update may cost you your job? Yes… we all have. With the advent of innumerable social networking sites (and our loyal following of them!), this kind of cyber crime will become worse in coming [...]

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Joule-Thomson Coefficient pT

Posted: 23 Feb 2011 02:00 AM PST

Hey guys,

I have question to Joule-Thomson Coefficient!
J-T Coefficient tells us the Temperature change of the gas by expansion prom pressure1 to pressure2.
As you can see at this table the J-T Coefficient depends on initial pressure and temperature.



When I have a closed tank, filled with Argon at 200 atm at 200 degC and I open the valve and let the gas expand, the pressure in the tank will drop with the time right.
Does it means that my J-T Coefficient will change (get better) by the time???!!!

Thanks for help!
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