31-05-2012, 04:38 PM
ECONOMIC SINGLE PHASE TO THREE PHASE CONVERTER TOPOLOGIES FOR FIXED FREQUENCY OUTPUT
ECONOMIC SINGLE PHASE TO THREE PHASE CONVERTER .ppt (Size: 880 KB / Downloads: 83)
INTRODUCTION
In rural electric systems the cost of bringing three phase power to a remote location is often high due to high cost for a three phase extension
Further, the rate structure of a three phase service is higher than the single phase service. Therefore single phase to three phase converters are excellent choice for situations where three phase power is not available such converters have a wide range of application in which a three phase motor is a main component and available supply is single phase.
Three phase motors are significantly more efficient and economical than their single phase counterparts.
Starting and in rush currents in a three phase motor are less severe than
in a single phase motor.
HOW VOICE SEARCH IS DONE?
Voice is converted to text.
The text will act as keyword in search engine.
In mobile also a small application need to be installed
Remaining similar to query processing
INFORMATION
Google filed a patent for technology which could lead to voice-assisted search.
Patent no 7027987, which was published on the US Patent and Trademark Office website is for a "voice interface for a search engine".
The patent was filed by Google co-founder Sergey Brin along with three associates. Two of the other named inventors in the patent are Alexander Franz and Brian Milch, who co-authored an academic paper, entitled "Searching the Web by Voice" back in 2002
ADVANTAGES
Using this service, you get fast access to the same local information you'd find on Google.
You don't need a computer
You don't need an Internet connection
You don't even need to use your cell phone
keypad.
This can implemented in web also.