Sunday, May 29, 2011

Samsung Galaxy S2

Approximate Price: 25,000 to 30,000 Rs.
Samsung GALAXY S II is a beautifully thin and lightweight, dual-core Smartphone. It uses Android 2.3 Gingerbread. The next generation Smartphone includes access to Samsung’s four new content and entertainment hubs, seamlessly integrated to provide instant access to music, games, e-reading and social networking services.
Latest version of Galaxy incorporates a dual-core application processor and advanced wireless network (HSPA+ 21) connectivity. Dual-core application processor delivers compelling features such as fast web browsing, multi-tasking comparable to a PC-like environment, supreme graphics quality and instantly responsive 3D user interface on the large screen. The GALAXY S II also delivers seamless multitasking, switching between applications instantly. Superior 3D hardware performance makes games and video incredibly fast and smooth. With super-fast HSPA+ connectivity, the GALAXY S II offers rapid mobile download speeds while BlueTooth® 3.0+HS considerably reduces data transfer times. The Samsung GALAXY S II has been equipped with an 8MP, high-profile camera and camcorder with 1080p full HD recording and playback. With Samsung’s patented AllShare technology, customers can capture, create and then share their experiences hassle-free.

It has been equipped with Samsung’s new crystal-clear Super AMOLED Plus screen. Using RealStripe screen technology and a greatly increased sub-pixel count, Super AMOLED Plus complements the mechanics of the human eye to recognize images look clearer and more detailed than ever before. With a wider viewing angle and increased visibility in outdoor, the Samsung GALAXY S II provides a more vibrant viewing experience than any other mobile devices.
Special Features:
• Social Hub Premium: The future of communication – talk to whoever you want, however you want, all from one place – your contact’s list. Communication history, IM status, and updates from social networking sites are all readily available. From here, users can access all types of messages (push e-mail, text, VM and SNS) and respond directly without resorting to individual applications. It truly acts as a hub for entire social life.
• Readers Hub: Carry an enormous library of books, magazines and newspapers on-the-go. Through strategic partnerships, Samsung Readers Hub provides over 2.2 million books and novels, 2,000 global and local newspapers in 49 languages and 2,300 popular magazines in 22 languages.
• Game Hub: The easiest way to download and play best-in-class mobile games. Featuring a 3-axis gyroscopic sensor, the Samsung GALAXY S II unleashes a world of gaming possibilities. Try for free and download premium titles from partners like Gameloft, or ‘enjoy Social Network Games (SNG) powered by mobage including ngmoco’s We Rule and We City’.
• Music Hub: Make Samsung GALAXY S II a personal music manager and access over 12 million tracks from 7digital. Discover what’s hot from top charts, search for favorite music, get recommendations on albums, enjoy previews and download them directly to Samsung GALAXY S II.

Sunday, May 22, 2011

NTSC Video

NTSC is short for National Television System Committee. The NTSC is responsible for setting television and video standards in the United States. The NTSC standard for television defines a composite video signal with a refresh rate of 60 half-frames i.e. interlaced per second. Each frame contains 525 lines and can contain 16 million different colors. The NTSC standard is incompatible with most computer video standards, which generally use RGB video signals. However, you can insert special video adapters into your computer that convert NTSC signals into computer video signals and vice versa.
NTSC color encoding is used with the system M television signal, which consists of 29.97 interlaced frames of video per second, or the nearly identical system J in Japan. Each frame consists of a total of 525 scan lines, of which 486 make up the visible raster. The remainder are used for synchronization and vertical retrace. This blanking interval was originally designed to simply blank the receiver's CRT to allow for the simple analog circuits and slow vertical retrace of early TV receivers. However, some of these lines now can contain other data such as closed captioning and vertical interval time code (VITC). In the complete raster, the even-numbered or 'lower" scan lines (Every other line that would be even if counted in the video signal, e.g. {2,4,6,...,524}) are drawn in the first field, and the odd-numbered or "upper" (Every other line that would be odd if counted in the video signal, e.g. {1,3,5,...,525}) are drawn in the second field, to yield a flicker-free image at the field refresh frequency of approximately 59.94 Hertz (actually 60 Hz/1.001). For comparison, 576i systems such as PAL-B/G and SECAM uses 625 lines (576 visible), and so have a higher vertical resolution, but a lower temporal resolution of 25 frames or 50 fields per second.
The actual figure of 525 lines was chosen as a consequence of the limitations of the vacuum-tube-based technologies of the day. In early TV systems, a master voltage-controlled oscillator was run at twice the horizontal line frequency, and this frequency was divided down by the number of lines used (in this case 525) to give the field frequency (60 Hz in this case). This frequency was then compared with the 60 Hz power-line frequency and any discrepancy corrected by adjusting the frequency of the master oscillator. For interlaced scanning, an odd number of lines per frame were required in order to make the vertical retrace distance identical for the odd and even fields, which meant the master oscillator frequency had to be divided down by an odd number. At the time, the only practical method of frequency division was the use of a chain of vacuum tube multi-vibrators, the overall division ratio being the mathematical product of the division ratios of the chain. Since all the factors of an odd number also have to be odd numbers, it follows that all the dividers in the chain also had to divide by odd numbers, and these had to be relatively small due the problems of thermal drift with vacuum tube devices. The closest practical sequence to 500 that meets these criteria was 3 × 5 × 5 × 7 = 525.

Thursday, May 5, 2011

Recycle Plastic 1

Type 1 Plastic – Polyethylene Terephthalate (PET, PETE)
Type 1 is PET and PETE or polyethylene. Such types of plastics are commonly used in water bottles. The acronym PETE (polyethylene terephthlate) or PET (poly ethylene terephthalate) are often used interchangeably, to refer to type 1 plastic. PET or PETE plastics are often used in soft drink bottles, as well as food and non-food containers, because of their good gas and moisture barrier properties. PET and PETE plastic can be recycled into carpet yarns, fiberfill, tote bags, food and drink containers, luggage and clothing.