Whenever we open the newspapers or switch on the television we can view the gory incidents of violence which has shaken up the world. Terrorism is the master word of today and we are threatened by bomb blasts, hijackings bloodshed and what not !
TEMPEST and ECHELON are the methods of spying in a sophisticated manner. Both were developed by the National Security Agency (NSA) for monitoring the people. These technologies were originally developed for pure espionage, but hackers use them now for spying into other people’s activities.
Tempest is the technology, which can reproduce what you are seeing in your monitor, what you are typing in your keyboard from a couple of kilometers away. It traces all electromagnetic radiation from the victim’s monitor, keyboard, even pc memory and hard disk, then it reproduces the signals.
Echelon is the spying on a large network by sniffing through the words. It can intercept as many as 2 million communications per hour through phone calls, faxes, e-mails, downloads, microwave, cellular, satellite communication etc.
This seminar describes about the various methods employed in spying with the help of Tempest and Echelon and that is why I decided to select this topic for my presentation.
Saturday, April 16, 2011
Bubble fusion
“Bubble fusion”, also known as “Sonofusion” provides us with a considerably simpler and cheaper means of thermonuclear fusion study. The application of deuterium ions in fusion helps to reduce the reaction cost as well as improve the reaction efficiency, since deuterium can withstand considerable stress and resultant stretching. The hazard factor also gets reduced compared to other nuclear fusion reactions.
Sonofusion phenomena occur when bubbles implode. This paper reviews the status of understanding the bubble dynamics involved in this phenomena. The experimental and analytical evidence supporting the observed production of neutrons and tritium due to thermonuclear fusion within imploding bubble clusters is reviewed. Also some potential methods to scale up the neutron yield as well as the applications of bubble fusion are discussed.
Sonofusion phenomena occur when bubbles implode. This paper reviews the status of understanding the bubble dynamics involved in this phenomena. The experimental and analytical evidence supporting the observed production of neutrons and tritium due to thermonuclear fusion within imploding bubble clusters is reviewed. Also some potential methods to scale up the neutron yield as well as the applications of bubble fusion are discussed.
Plasmonics
Plasmonics is a new branch of science which exploits the properties of plasmons which exist in a metal. Plasmons can be defined as the collective oscillations of the free electron gas density, often at optical frequencies. It is a quasi particle resulting from the quantization of Plasma oscillations. Most of the researches are based on a particular group of plasmons namely ‘SURFACE PLASMONS’ .They are electron waves that propagate along the surface of a conductor. By altering the structure of a metal surface, the interaction of plasmons with light can be modified, offering the potential for revolutionizing photonic systems. Surface plasmons can help to overcome the diffraction limits of size and performance in photonic components. Sub wavelength optics and structures may be possible using plasmonics by exploiting the existence of surface plasmons (SP) in metals. By appropriately designing nanostructures considering its environment, the SP properties can be tailored to making new sub wavelength devices for application ranging from plasmonics chips to bio-photonics. Thus the study of plasmonics has a wide range of applications in various fields such as nanotechnology, medical fields and even in space shuttles.
QUANTUM TELEPORTATION
Quantum teleportation, or entanglement-assisted teleportation, is a technique used to transfer information on a quantum level, usually from one particle (or series of particles) to another particle (or series of particles) in another location via quantum entanglement. It does not transport energy or matter, nor does it allow communication of information at superluminal (faster than light) speed, but is useful for quantum communication and computation.
More precisely, quantum teleportation is a quantum protocol by which a qubit a (the basic unit of quantum information) can be transmitted exactly (in principle) from one location to another. The prerequisites are a conventional communication channel capable of transmitting two classical bits (i.e. one of four states), and an entangled pair (b,c) of qubits, with b at the origin and c at the destination. (So whereas b and c are intimately related, a is entirely independent of them other than being initially colocated with b.) The protocol has three steps: measure a and b jointly to yield two classical bits; transmit the two bits to the other end of the channel (the only potentially time-consuming step, due to speed-of-light considerations); and use the two bits to select one of four ways of recovering c. The upshot of this protocol is to permute the original arrangement ((a,b),c) to ((b′,c′),a), that is, a moves to where c was and the previously separated qubits of the Bell pair turn into a new Bell pair (b′,c′) at the origin.
More precisely, quantum teleportation is a quantum protocol by which a qubit a (the basic unit of quantum information) can be transmitted exactly (in principle) from one location to another. The prerequisites are a conventional communication channel capable of transmitting two classical bits (i.e. one of four states), and an entangled pair (b,c) of qubits, with b at the origin and c at the destination. (So whereas b and c are intimately related, a is entirely independent of them other than being initially colocated with b.) The protocol has three steps: measure a and b jointly to yield two classical bits; transmit the two bits to the other end of the channel (the only potentially time-consuming step, due to speed-of-light considerations); and use the two bits to select one of four ways of recovering c. The upshot of this protocol is to permute the original arrangement ((a,b),c) to ((b′,c′),a), that is, a moves to where c was and the previously separated qubits of the Bell pair turn into a new Bell pair (b′,c′) at the origin.
Intelligent Flight Control System
The Intelligent Flight Control System (IFCS) is a next-generation flight control system designed to provide increased safety for the crew and passengers of aircraft as well as to optimize the aircraft performance under normal conditions. The main benefit of this system is that it will allow a pilot to control an aircraft even under failure conditions that would normally cause it to crash.
The main purpose of the IFCS project is to create a system for use in civilian and military aircraft that is both adaptive and fault tolerant. This is accomplished through the use of upgrades to the flight control software that incorporate self-learning neural network technology.
The main purpose of the IFCS project is to create a system for use in civilian and military aircraft that is both adaptive and fault tolerant. This is accomplished through the use of upgrades to the flight control software that incorporate self-learning neural network technology.
High-Definition Multimedia Interface
The High-Definition Multimedia Interface (HDMI) is a compact audio/video connector interface for transmitting uncompressed digital streams. It represents a digital alternative to consumer analog standards such as Radio Frequency (RF) coaxial cable, composite video, S-Video, SCART, component video, D-Terminal, and VGA. HDMI connects digital audio/video sources such as set-top boxes, Blu-ray Disc players, personal computers, video game consoles, and AV receivers to compatible digital audio devices, computer monitors, and digital televisions.
HDMI supports two-way communication between the video source (such as a DVD player) and the DTV, enabling new functionality such as automatic configuration and one-touch play. By using HDMI, devices automatically deliver the most effective format for the display that it is connected to - eliminating the need for the consumer to scroll through all the format options to guess what looks best
HDMI supports two-way communication between the video source (such as a DVD player) and the DTV, enabling new functionality such as automatic configuration and one-touch play. By using HDMI, devices automatically deliver the most effective format for the display that it is connected to - eliminating the need for the consumer to scroll through all the format options to guess what looks best
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