Essays on Electronics Page 5

MP3Two years ago, MP3 was just another audio compression format. Today, it’s a Net phenomenon that’s at the center of an enormous controversy. That’s because MP3 makes it possible for people with an Internet connection to bypass record stores (and cashiers) and download CD-quality music by their favorite artists–for free. MP3 is great formusic lovers…

Abstract: The proposed frequency band for a 4G mobile system is 2 to 8 GHz, while the proposed access for the system is MC-CDMA / OFDM. In this paper, a new access technique has been proposed, with the bandwidth of the system divided into ten sub-bands. Each sub-band has40 channels and the access is a…

Introduction Robotics is a fascinating subject – more so, if you have to fabricate a robot yourself. The field of robotics encompasses a number of engineering disciplines such as electronics, structural, mechanical and pneumatics. The structural part involves use of frames, beams, linkages, axles, etc. The mechanical parts/accessories comprise various types of gears (spurs, crowns,…

USB Flash Drive             With the advent of the new age come new technologies that man found very indispensable whether in work or play. This is true with computers, which man relies with to make work easier. For students, having a computer makes researches and writing papers easier. And now that there are so many…

Electromagnetism exists everywhere. When people drive, walk, or even go to the beach. However, due to the extreme complexity of the topic, electromagnetism has proven to be a subject studied by those who are crafty and willing enough to explore the domain. The ideas of electricity start from simple objects such as springs, coils and…

A wire-map tester consists of a remote unit that you attach to the far end of a connection and the battery-operated, handheld main unit that displays the results. Typically, the tester displays various codes o describe the type of faults it finds, so you know which part of the cable you messed up on or…

It may have been thought that the feature would be filled with antennas and emitters because of the rapid expansion of wireless communications. However, it appears that the human body is now emerging as a significant contender in data transfer. NTT labs from Japan is currently testing an innovative technology called “red tacton,” which utilizes…

The overall process by which a series of tells devices called circuit switches connect a circuit from one customer device to the other, with the device’s logic taking incoming bits on one segment in the link and forwarding those bits out the matching outgoing segment, without storing the bits. Packet switching- The process of forwarding…

Initially, the backhaul of telecom equipment depended on microwave and satellite communication. However, as different telecom technologies rapidly expanded and the need to reach larger market segments increased, there was a significant growth in national and international traffic. Due to the expensive space segments for satellite communications and the limited capacity of microwave links, Nepal…

How does the Heliodisplay work? The Heliodisplay transforms water into a unique screen of fine vapour, suspended in mid-air to create a nearly invisible screen into which any image can be projected. The display can create a true 3D hologram effect when the right content is used. Heliodisplay images are not holographic although they are…