WiFi, ZigBee battle on Smart Grid

The proliferation of electronic devices and appliances in homes and their impact on the efficiency and cost of smart-grid electrical power has given rise to a public debate over whether Wi-Fi or ZigBee represents the most energy-efficient way to deal with the situation.

On one side is General Electric, which argues that ZigBee is more energy efficient than Wi-Fi. On the other side, the Wi-Fi Alliance maintains that "Wi-Fi offers unsurpassed capabilities for the smart grid" and that GE's recent study hailing ZigBee "is flawed, resulting in inaccurate findings." The Wi-Fi Alliance on Monday released its rejoinder to GE's early December white paper.

In its report, a team of GE engineers and technicians from the appliances and lighting units studied Wi-Fi, Bluetooth, and ZigBee solutions to determine which of the existing technologies would best minimize the energy impact of homae energy networks. The GE team dismissed Bluetooth quickly, arguing that its limited range made it unsuitable for home networking of appliances and other products.

In comparing Wi-Fi with ZigBee, GE said it found that components for ZigBee-based devices were less expensive than Wi-Fi components. In addition, the GE investigators said ZigBee's mesh networking capability resulted in energy savings as did other features of the ZigBee standard.

The GE team argued that overall home network energy cost savings for ZigBee over Wi-Fi would result in theoretical annual savings of USD 315 million based on an assumed population of 750 million devices.

In its release rebutting the GE findings, the Wi-Fi Alliance said the GE investigators based their findings in part on older, less efficient Wi-Fi technology that has been upgraded since the GE report was issued.

New information

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Creative Debuts Wireless Speaker Systems Range All the speaker systems work with any compatible stereo Bluetooth A2DP enabled, be it mobile phones, portable media players, iPhone, iPod, iPad, netbooks or notebooks

Simmtronics Ventures Into Nepal Explore Asia Pacific has been appointed as the exclusive distributor for Simmtronics products in Nepal

HP To Leverage On HCL’s Distribution For DreamScreen With the new agreement, HCL Infosystems will take HP DreamScreen to various parts of the country including tier-1, tier-2 cities and all townships

Microsoft: 1.5 Million Windows Phone 7 Smartphones Sold In First Six Weeks Sales of Microsoft Windows Phone 7 have met expectations, according to a posted interview with Microsoft executive Achim Berg

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Epson Announces Max Economy Office Printers Commits to growing business printing market with the launch of high performance inkjet printers with low running costs

Report: Intel And AMD Stagnate In Microprocessor Market
Intel and AMD seem to have reached a stalemate in their perpetual rivalry to gain market share in the microprocessor industry, according to analyst firm iSuppli

HP To Leverage On HCL’s Distribution

HP India and HCL Infosystems have entered into a strategic tie-up for the distribution of DreamScreen—HP’s touch-screen enabled digital appliance for India market. Through this partnership

With the new agreement, HCL Infosystems will take HP DreamScreen to various parts of the country including tier-1, tier-2 cities and all townships.
Speaking on the partnership, Sunil Dutt. PSG, HP India, said, "We are glad to partner with HCL Infosystems as distribution partner for our innovative interactive digital device DreamScreen. HCL Infosystems has a widespread reach across channels and organized retail across India and is an ideal partner to take our unique offering to the length and breadth of the country. This is a part of HP's ongoing endeavor to provide the technologically best and most cost-efficient solutions to Indian families through easy access and strong distribution network."
George Paul, Executive Vice President, HCL Infosystems, said, “Today HCL Infosystems has a leading distribution network.

Data GPRS Yes
EDGE Yes
3G HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps
WLAN Wi-Fi 802.11 b/g/n; DLNA
Bluetooth Yes, v2.1 with A2DP
Infrared port No
USB Yes, v2.0 microUSB
Camera Primary 5 MP, 2560 x 1920 pixels, autofocus, LED flash
Features Geo-tagging, touch focus
Video Yes, WVGA@30fps
Secondary Yes, VGA
Features OS Android OS, v2.3 Gingerbread
CPU ARM Cortex A8 1GHz processor
Messaging SMS(threaded view), MMS, Email, Push Mail, IM, RSS
Browser HTML
Radio No
Games Yes
Colors Black
GPS Yes, with A-GPS support
Java Via third party application
- Social networking integration
- Digital compass
- MP4/DivX/WMV/H.264/H.263 player
- MP3/WAV/eAAC+/AC3/FLAC player
- Organizer
- Image/video editor
- Document editor (Word, Excel, PowerPoint, PDF)
- Google Search, Maps, Gmail,
YouTube, Calendar, Google Talk, Picasa integration
- Flash Player v10.1
- Voice memo/dial/commands
- Predictive text input
- Near Field Communications
Battery Standard battery, Li-Ion 1500 mAh
Stand-by Up to 713 h (2G) / Up to 428 h (3G)
Talk time Up to 14 h (2G) / Up to 6 h 40 min (3G)
General 2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 900 / 1700 / 2100
Announced 2010, December
Status Available. Released 2010, December
Size Dimensions 123.9 x 63 x 10.9 mm
Weight 129 g
Display Type Super AMOLED capacitive touchscreen, 16M colors
Size 480 x 800 pixels, 4.0 inches
- Oleophobic surface
- Contour Display with curved glass screen
- Multi-touch input method
- Accelerometer sensor for UI auto-rotate
- Touch-sensitive controls
- Proximity sensor for auto turn-off
- Three-axis gyro sensor
Sound Alert types Vibration; MP3, WAV ringtones
Speakerphone Yes
- 3.5 mm audio jack
Memory Phonebook Practically unlimited entries and fields, Photocall
Call records Practically unlimited
Internal 16GB storage, 512 MB RAM
Card slot No

intel processor

 

Suunniteltu maasta ylös äärimmäistä kilpailua pelaamiseen ja HD-multimedian lennossa, Intel ® Extreme-prosessorit ovat maailman tehokkaimpia quad-core ¹ ja dual-prosessorit. Kun kaikki suorituskyvyn työpöydän käytössä vallankumouksellinen, tyylikäs, ja Killer muistikirja.
Sillä teidän perimmäinen moottorin hi-def digitaalisen sisällön luomiseen, HD-multimedia-ja Rockin ‘hardcore pelikokemuksen, nämä kannettavat tarjoavat raa’an voiman, reagointikykyä ja realismi tarvitset eniten laskentatehoa intensiivistä ja monisäikeinen apps-minne haluaa olla.

pytha technology

 

1. 2D REVOLVE
2D revolve is a function that successively develops all faces of a part into XZ view. Their relative position remains unchanged which means that in 2D each face lies adjacent to its original neighbors in 3D. 2D revolve is an interactive function. The user may specify the order of development if he wants to take influence
A shell can be developed with only a few mouse clicks, as e.g. the conical front of this counter. The result may be used as a template or may be passed on to a CNC machine.
2. NESTING
The parts you have laid flat can be arranged for cutting optimization. PYTHA‘s cutting optimization calculates the best possible arrangement of rectangular or arbitrarily shaped parts on pre-defined boards. The cutting optimization can be controlled to suit various needs: minimum use of material, grain direction, saw cut optimization or free form optimization.
3. ASSOCIATIVE SECTIONS
Thanks to the associative sectioning 2D drawings will be automatically derived from any 3D models. The 2D section remains associated with the 3D model, which means that each change of your 3D objects automatically becomes visible in the appropriate sections. In addition: you may generate any number of sections and views. Simply define the sectioning plane and the viewing direction, the rest is automatically done by PYTHA. Yet the best is still to come: PYTHA automatically adds text, dimensioning and hatching according to your settings. All sectioning attributes may be edited any time.
4.FREE FORM SURFACE
Modulated Profile
Revolve
Coons and Bezier
Loft
Subdivision Surfaces
Sweep
and others…
5. LINES AND ARCS
The PYTHA modeller allows an automatic arc analysis, which converts arbitrarily shaped free outlines (like Ellipse, Splines, or even vectorized objects) into straight lines and real circular arcs. Each outline or face which goes to the CNC machine will come out precise and flawless and can be milled, sawed or cut out with lasers. Therefore you don‘t have to do any more postprocessing of curves and ellipses on your own!

pc maintanence

 

Once you bring your personal computer home from the store or receive it in the mail there is no one around to offer basic personal computer maintenance tips for cleaning up and improving performance of your computer. Maintenance and cleaning up of your PC should be part of a regular routine to ensure that you don’t have any long-term problems with the computer. Unfortunately most basic computer users may not understand the mechanics of a computer or may feel intimidated with the maintenance. There are really simple steps anyone can take to ensure that your computer will continue working at the level it did when you first pulled it out of the box.
One of the first files to become acquainted with on your computer is the System Tools, located under the Start Menu, then Programs, and Accessories. The System Tools houses basic maintenance tools like Disk Defragmenter, Disk Cleanup, Backup, Scheduled Tasks, and System Information and ScanDisk on some Microsoft Windows computers. Strange that these files are located in Accessories because they really are the key to keeping your system running correctly and helping to improve performance as the computer ages.
On a regular basis you want to go to My Computer and then right click on the Local Disk (C Drive) and open up the Properties. This allows you to see how much space you are using and how much you have left to use on your computer. Under Tools in this area you can usually perform a scan of the disk. If you cannot run a disk scan from here, your Microsoft should have a disk scan available under the System Tools. It is important to run this disk scan to determine if there are any errors or problems running on your computer and the disk scan will repair those potential problems. Some experts recommend doing a thorough disk scans the first time and then a basic disk scan up to once a week to keep your computer performing at top conditions.
After this it is important to regularly perform a disk cleanup, which is located either under Properties under the C Drive, or under System Tools. Be aware that both the disk scan and the disk cleanup can take quite a bit of time and it is best to before these maintenance tools when you will not be using the computer. Set a routine with yourself like performing the disk clean up and disk scan on Saturday night while you are watching movies with your family. After a disk cleanup, it also helps to regularly perform a disk defragmentation. A computer hard drive will begin to fragment over time, which means that programs that once worked in conjunction have become separated over time and may not be in the proper place to work well on your computer. This can slow down processes or make using certain programs difficult. Using the disk defragmenter can pull together those pieces again and return things to working order.

pc tips and tricks

 

Protect Your Computer
Spyware is a broad term used for certain types of software that are downloaded onto your computer without your knowledge. Malware has become a phrase that is used when describing spyware and adware.
Spyware is placed on your computer in order to track your internet surfing habits. It knows every site you visit and every page on that site. Spyware also collects your personal information through software that tracks your actual keystrokes. If you fill in a form to make a purchase all your personal information, including name, address and credit card information can be tracked. The potential abuse of spyware tracking is also being discussed in some businesses that store secure information, such as credit card numbers or even medical records

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intel processor

Suunniteltu maasta ylös äärimmäistä kilpailua pelaamiseen ja HD-multimedian lennossa, Intel ® Extreme-prosessorit ovat maailman tehokkaimpia quad-core ¹ ja dual-prosessorit. Kun kaikki suorituskyvyn työpöydän käytössä vallankumouksellinen, tyylikäs, ja Killer muistikirja.
Sillä teidän perimmäinen moottorin hi-def digitaalisen sisällön luomiseen, HD-multimedia-ja Rockin ‘hardcore pelikokemuksen, nämä kannettavat tarjoavat raa’an voiman, reagointikykyä ja realismi tarvitset eniten laskentatehoa intensiivistä ja monisäikeinen apps-minne haluaa olla

computer details

Get Your Computer Details
Want to figure out all your computer specifications? Stuff like CPU speed, RAM, Hard Drive space, screen resolution, etc? It’s actually not as easy as it should be. Maybe I’m missing something, but as far as I can tell, you have to go to separate areas in Windows to figure this it out.
RAM & Windows Version -
Right-click My Computer and select Properties or manage. In the manage button view details about the devices connect to the system. click the computer The screen that pops up will give you info on what version of Windows you’re running and how much RAM is currently installed in the machine.
Hard Drive Space -
Open My Computer , right-click the C: drive, and select Properties from the resulting menu. You’ll get a handy little Pie chart that gives you used and available HD space.
Screen Resolution -
Right-click the Windows Desktop and select Properties . Hit the Settings tab on the resulting screen. You’ll see your resolution and color depth listed there.
CPU Speed -
Windows XP will actually give you this if you right-click My Computer, Properties . However, older versions of Windows won’t give you the slightest hint as to the CPU speed. then we call a systems engineer. No need to call system engineer.just open enclosure and then removing the RAM and then type of RAM to use the system to begin to work on your system.

After trying this method, the system does not just start and then call the system engineer.

computer problems

 

 In computer there are many problems arising every day. These problems are very simple and easy one to resolve.
some of the problems are listed below
1. cd rom present inside the cd drive when power is off
2. some time the system should not start
the solution for the 1 st problem is use one single needle to get cd outside.
By using this needle inject into the small whole present in the cd drive. the whole present below the cd led
press the cd drive button and the inject the needle into the whole the cd come out. use this step i use this method when power cut occurs
2 nd problem sometime the system should not log on or start. at that time we calling one system engineer. No need for calling system engineer.just open cabinet and then remove the RAM  and then insert the RAM use this method then start working with your system.
After trying this method the system should not start then only call the system engineer.