CrazyEngineers Forum

Happy Birthday Frooty
Confusion with calculating average lift for duty cycle of a crane
Atm machine mechanism
making an electromagnet
e-CRM and perspectives in a eye view of bird
How LG has overcome with 3D TV flicker?
In which language Microsoft windows is made????
Galaxy Pro B 7510 Features & Price
Early Adopters Are Quitting Facebook - Why?
Micro Controller Contest - Last Date 3rd July 2011
Memory Card Issue
Parrot AR Drone Coming Soon On Bada, Nokia, Android & iOS
Identify the person to the extreme left...
X-Men: Science Can Build Them, But Is It Ethical?
GRE Math Concepts Required For GRE General Test

Posted: 13 Jun 2011 02:24 PM PDT

Many more happy returns of the day :happy::happy:

May all your wishes come true :birthday::birthday:

where is the treat for CEans?

Confusion with calculating average lift for duty cycle of a crane

Posted: 13 Jun 2011 09:58 AM PDT

Well, it's been some time i couldn't turn here but it's always better to late then never. Well i am back with a technical question that i was having a discussion with my team today. This is related with duty cycle of a crane and the formula is (2*HW*ASP*AZ)/(60*V) where HW stands for Avg height or lift, ASP is motion of hook and in cycle per hour while AZ is working hour per day And V is hoist speed. Now Generally we calculate This for constant weight and weight doesn't affect this formula, but if weight varies for instance crane lifts 10Tone having avg lift 3 mtr, Then 7 tone with 5 mtr and 5 tone with 7 mtr at different moment of working hours. then how we are going to calculate avg eight or lift. i was told that we do not need to consider weight but i am still in doubt. so would the avg lift would be just (3+5+7)/3=5mtr as in general we would calculate simply or it would be (as i was doing):-(10*3+7*5+5*7)/(10+5+7)=4.5 approx. please explain your answer.:confused:

Atm machine mechanism

Posted: 13 Jun 2011 07:02 AM PDT

Need help in knowing how does atm machine works. Explain only the sensing element, signal converter and output of atm machine.

making an electromagnet

Posted: 13 Jun 2011 06:21 AM PDT

I am planning to make an electromagnet which can lift atleast 200gm mass.
Normally electromagnets are made up by coiling an iron rod and passing a considerable
amount of dc voltage through it. Based on this I have few questions.
1 is there any device which convert 220vac to 12vdc & is it possible to increase it upto 220 vdc
or should i use separate device for the above purposes and what would be the cost of the device
2.how much dc volts and amps are required to magnetise an iron rod so that it may lift 200gm mass & how much number of coil turns are required.
3 how can I increase the magnetic power of the electromagnet
4 how can I reverse the poles of the electromagnet

e-CRM and perspectives in a eye view of bird

Posted: 13 Jun 2011 06:12 AM PDT

Dear CE members,
As we know about CRM (customer relationship management). Its another casual electronic phase means, we can use the CRM through internet so that it becomes e-CRM(electronic CRM). It can used to increase the customer loyalty and satisfaction. So in all the internet level can be used to increase the e-CRM as a good management software for any organization. Latest innovative improvement is VoIP used for customer interaction.
So, i hope that you will discussed about the more innovative idea related to e-CRM.

thanks

How LG has overcome with 3D TV flicker?

Posted: 13 Jun 2011 05:14 AM PDT

After going certain articles and related threads on forums,
I found that LG has successfully overcome with the problem of 3d tv flicker in its FPR 3d tv.

But I didn't found the basic phenomenon behind this success of LG.
Could anyone help me that how actually it comes possible.

I'll be very thanks full.

In which language Microsoft windows is made????

Posted: 13 Jun 2011 04:35 AM PDT

I think that the Linux OS was made of C language ...
But what about WINDOWS???

Galaxy Pro B 7510 Features & Price

Posted: 13 Jun 2011 03:50 AM PDT

Samsung Galaxy Pro B7510 seems to be a complete business phone for those who love Android and also want the 'Blackberry' style. Samsung calls this phone a complete business phone that has everything from Wi-Fi to GPS for your communication and all the business apps from Android market store to keep you productive on the go. Samsung has built in some advance messaging capabilities in this device. The phone integrates social messaging hub so that you get all the SN updates right on your screen without you having to visit the sites manually one by one.

GALAXY Pro comes equipped with ThinkFree Office, so you can Create, open and edit work documents from your mobile - no PC required! You also have access a varied portfolio of business applications from Android Market™ or APIs for business applications, giving you seamless access to the programs you need for work. GALAXY Pro has a QWERTY keyboard for professionals who want the tangible feedback of pushing buttons while typing but it also embraces the navigational and intuitive ease provided by a capacitive touch screen.

GALAXY Pro comes with a secure Wi-Fi connection provided by CCX (Cisco Compatible Extension), secure access to intranet through Virtual Private Network and device management and security solutions from Sybase Afaria to ensure high protection for business data.

Samsung Galaxy Pro B7510 is priced at Rs. 9.8k in India which makes it an affordable phone for business use. What's your opinion about the phone?

Early Adopters Are Quitting Facebook - Why?

Posted: 13 Jun 2011 03:42 AM PDT

I've been checking out statistics on various portals that as Facebook is approaching 700 million worldwide users, the traffic in US is dropping - thanks to the new era of Twitter & Yelp. It seems that the early adopters of Facebook are now switching over to the newer forms of social networking.

I see it as a perfect example of history repeating itself. First it was My Space that took the world by storm. Then came Orkut which completely invaded few parts of the world and even snatched tons of users from MySpace. Then came the Facebook which literally robbed all social networks in the world and became the #1 social network. However, early adopters of Facebook seem to be quitting.

One reason I see is that any time-killing activity, after some time gets boring. People want to enjoy new stuff and this could be a major reason that people don't want to keep their facebook profiles updated.

Are you an early adopter of Facebook? How's your experience so far?

Micro Controller Contest - Last Date 3rd July 2011

Posted: 13 Jun 2011 02:08 AM PDT

Quote:
Submit a new Step By Step, Photo, or Video Instructable that involves a microcontroller. Instructables must be published during the contest period to be eligible.
unquote
Microcontroller Contest INFO

Memory Card Issue

Posted: 13 Jun 2011 01:58 AM PDT

Need Help regarding memory card.
i have 2 gb sd micro memory card ..Also brought a suitable adapter for it(as i didnt get one while purchase) to connect to my Dell laptop mmc slot.

Even after installing the drivers for mmc card reader..the specific memory card flash drive is not shown in My computer.

Please guide me regarding this.

Parrot AR Drone Coming Soon On Bada, Nokia, Android & iOS

Posted: 12 Jun 2011 11:54 PM PDT

Parront AR Drone is a nice toy that can be controlled with the help of iPad or iPhone. At the launch company said that they will roll out support for other platforms as well which includes Samsung Bada operating system, Nokia Symbian as well as Android. The RC Quadrocopter can be controlled remotely with the phone or tablet.

In addition to the announcement of more playable platforms, Parrot has also announced new games and the establishment of an international competition giving pilots the chance to face off in a series of challenges. However, the games are currently only available for iOS devices.

Pilots will also get the opportunity to test their skills on the global stage with three "video" challenges to be revealed on June 24, July 8 and July 22. Entrants will be required to film their challenge attempts and post the videos online before August 14, 2011. The 14 best pilots will then be chosen to compete in a grand final to be held in Paris on October 1, 2011. Entrants must be over 18 and register at www.ardone.com.

Identify the person to the extreme left...

Posted: 12 Jun 2011 11:47 PM PDT