See the latest development in the gadgets and devices from all over the world

Green Technology

Advancement in the field of scientific technology in the world.


Learn about the latest advancements in the technology in the biological world.


College Projects for college students of different categories.
Posted on Wednesday, 11 April 2012

The Routh-Hurwitz stability criterion is a necessary method to establish the stability of linear time invariant (LTI) control system.

More generally, given a polynomial, some calculations using only the coefficients of that polynomial can lead us to the conclusion that it is not stable.

In this program you give your system coefficents and the Routh-Hurwitz table would be shown

r=input('input vector of your system coefficents: ');
for p = 1:length(r) 
    if rem(p,2)==0


if m/2 ~= round(m/2)
if a(2,1)==0
for i=3:m
    for j=1:n-1
        if x==0


    if a(i,:)==0
        for j=1:n-1
    if a(i,1)==0
for i=1:m-1
    if sign(a(i,1))*sign(a(i+1,1))==-1
fprintf('\n Routh-Hurwitz Table:\n')
fprintf('\n Number Of Right Poles =%2.0f\n',Right_poles)

reply = input('Do You Need Roots of System? Y/N ', 's');
if reply=='y'||reply=='Y'
    fprintf('\n Given Polynomials Coefficents Roots :\n')

Read More
Posted on Saturday, 17 December 2011
Advancement in Computer Technologies:
Since the introduction of the first computers the Computer technology has advanced at a very fast pace. Every single day a new innovation, a new concept is being introduced in the computer technology. The pace in the computer technology is so fast that if a person says about a task that it is impossible, a person in another part of the world is already working on it. These advancements have encouraged different companies to come up with their ideas and compete with the pioneers of the computer market.

Tablet PC’s: The latest and the best:
Tablet PC’s are the latest and the best form of computers. Users have found them and liked them a lot. A tablet PC provides in the true sense the portability and ease that the miniaturised computers have promised. Tablet PC’s, since their origin, have been made better and faster. A few companies have come up with some lightening fast and attractive tablet PC’s. These include Apples, Samsung, Amazon, LG and many others. All of them have tried to make the tablet PC’s faster and better. But if you are talking about the best in this field then there is no doubt only one and that is Samsung.

Samsung and Tablet PC’s:
Samsung has been the pioneers in producing Tablet PC’s. Samsung has always tried to give its customers the best. That is why latest processors and sleek stylish designs have been seen in Samsung’s Products. The latest in this field is the Samsung Exynos 5250 Chip. This 2 GHz Cortex A15 Exynos 5250 Chip is the latest and the fastest processor chip that has been yet made for the tabs. This dual core processor provides better speed and enhanced performance in the tablet PC. This design is better adaptive to 3D technology and provides a new maximum resolution of 2506x1600. Samsung says that this processor will be available in the market by the end of 2012.

Read More
Posted on

For Sony it was almost two years hard work to enter in to the Tablet market.

To launch a new product of already growing tablet market, where it has so many competitors like the obvious iPad, the Samsung galaxy tablets, Motorola and Acer.

The Sony Tablet S has therefore a different design and look. It has a very different look like it has been folded back from a single textured plastic. It is thicker from one end and very thin sleek surface at the other end.
The Tablet also weighs just 600g so it is very easy to carry compared to the iPad 2. The back is also textured so that it is very easy to carry.

There's a dual-core Tegra 2 processor clocked at 1GHz, 1GB of memory, capacitive touchscreen, and an SD expansion slot.

The Company has strived hard to make it as much versatile as it can from its competitors.

There are front and rear cameras, 1080p video capture and playback, PlayStation certification, which enables users to access a range of exclusive titles, and a host of Sony created apps, including a universal remote for controlling other Sony products.

It has a Beautiful screen quality, Excellent software keyboard, Excellent music application.

With access to the Android Market, you can browse through thousands of useful, time-saving and entertaining apps. There's also instant access to Google™ mobile services and applications including 3D maps and easy web search with Google Voice Search. Download what you want and make your tablet truly yours.
Read More
Posted on Tuesday, 13 December 2011

Apple iCam is a concept that is given by the Italian designer Antonio DeRosa. And it is likely to be a part of new iPhone 5.

The camera will be having interchangeable lenses, as well as it is going to be operated via your iPhone. So that now we have a huge screen, high processing power, connectivity to various applications and the internet.

The camera also has a rear panel to which the iPhone can be easily connected. It features a 10.1-megapixel sensor and supports video recording with high resolution Full HD at 60 fps.

The iCams two front cameras bring 3D technology to palm of your hand. Which means you can share, edit, record, take pictures all in 3D
Read More
Posted on

Dell 7-inch Streak tablet has been taken out of market, according to their website the company has stopped the production of this android tablet and it is no more available for sale on their website.

As the company has informed that it didn’t meet their market expectations of the previous year and it also failed to generate any significant interest.

The company now will launch their windows 8 tablet when the operating system will be launched next year.

According to the CEO of Dell the product has been stopped because it did not meet their market demand; however the Dell 10-inch tablet is still in production.

It appears that Dell has to look into their tablet production and have to take better contracts to make their tablets the talk of 2012. 
Read More
Posted on Monday, 12 December 2011
Ever LISTENED to a text message ???
Well this project will make you do so.
Surprised ???
Don’t be because AUDIO STEGANOGRAPHY is the method in which we can encode our secret messages on an audio signal ensuring their safety. In this way we can decrypt a message on an audio signal without its detection.

Lsb coding:-
The type of coding used in this project is the LSB or the Least Significant Coding.
Least significant bit (LSB) coding is the simplest way to embed information in a digital audio file. By substituting the least significant bit of each sampling point with a binary message, LSB coding allows for a large amount of data to be encoded.

In this project we first read a wav file using the MATLAB wavread command. Then we input a message from the user. This message is then converted into its ASCII coded signal which then bit by bit replaces the LSB of the wav file. In this way we convert our message into audio form and transmit it.
At the receiver end when the signal is received or the audio file is received, we just take out the last bit of the audio signal. This now is our ASCII coded message we just convert it back into our message signal.

The program is also generating a graphical user interface, from which you can easily hide the message and can then extract it later. All the related codes as well as the audio files can be downloaded here.
Read More