Description : Steganography is the art and science of writing hidden messages in such a way that no one apart from the sender and intended recipient even realizes there is a hidden message. By contrast, cryptography obscures the meaning of a message, but it does not conceal the fact that there is a message. Today, the term steganography includes the concealment of digital information within computer files. For example, the sender might start with an ordinary-looking image file, then adjust the color of every 100th pixel to correspond to a lette ....etc

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A. MOHAMED ZUHAIR M.E., LECTURER,
C. MOHAMED YOUSUF M.E., LECTURER,
DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING
C.ABDUL HAKEEM COLLEGE OF ENGINEERING AND TECHNOLOGY
HAKEEM NAGAR,MELVISHARAM-632509,
VELLORE,TAMILNADU,INDIA


Abstract
For effective digital rights management (DRM) of multimedia in the framework of embedded systems, both watermarking and cryptography are necessary. Here, we present a novel system in the form of a digital camera that embeds biometric d ....etc

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As a scientific pursuit, the search for a viable successor to silicon computer technology has garnered considerable curiosity in the last decade. The latest idea, and one of the most intriguing, is known as molecular computers, or moletronics, in which single molecules serve as switches, quantum wires a few atoms thick serve as wiring, and the hardware is synthesized chemically from the bottom up.

The central thesis of moletronics is that almost any chemically stable structure that is not specifically disallowed by the laws of physics can ....etc

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The latest idea for the search for a viable successor to silicon computer technology is known as molecular computers, or moletronics, in which single molecules serve as switches, 'quantum wires' a few atoms thick serve as wiring, and the hardware is synthesized chemically from the bottom up. An 'assembler', which is little more than a submicroscopic robotic arm can be built and be controlled. It Can be used to secure and position compounds in order to direct the precise location at which chemical reactions occur. This general approach allows th ....etc

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As a scientific pursuit, the search for a viable successor to silicon computer technology has garnered considerable curiosity in the last decade. The latest idea, and one of the most intriguing, is known as molecular computers, or moletronics, in which single molecules serve as switches, quantum wires a few atoms thick serve as wiring, and the hardware is synthesized chemically from the bottom up.

The central thesis of moletronics is that almost any chemically stable structure that is not specifically disallowed by the laws of physics can ....etc

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please send the details of above topic ....etc

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ABSTRACT

A novel data-hiding methodology, denoted as digital invisible ink (DII), is proposed to implement secure steganography systems. Like the real-world invisible ink, secret messages will be correctly revealed only after the marked works undergo certain prenegotiated manipulations, such as lossy compression and processing. Different from conventional data-hiding schemes where content processing or compression operations are undesirable, distortions caused by prenegotiated manipulations in DII-based schemes are indispensable steps for ....etc

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i am doing project on invisible watermarking using contourlet and wavelet transform using matlab.can any one help by providing the source code for the project.... ....etc

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Circuit Components

The circuit of invisible broken wire detector is a simple circuit which is built using a hex inverter CMOS IC CD4069. This IC has six inverters that is NOT gate. Out of these six inverters the gates N3 and N4 are used as a pulse generator that oscillates at around 1000Hz in the audio range. The frequency is determined by timing Components comprising resistors R3 and R4, and capacitor C1. Gates N1 and N2 are used to sense the presence of 230V AC field around the live wire and buffer weak AC voltag ....etc

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ABSTRACT
INVISIBLE BROKEN WIRE DETECTOR
In our day to day life we are dealing with electricity as well as so many electricalequipments. In this electrical equipment the household appliances play a major role.So the fault occurring with them is also a major problem. Generally the fault seen isthe breaking of wire inside the two layer or three layer cables or the short circuitbetween them. Portable loads such as video cameras, halogen flood lights, electricalirons, hand drill, ....etc

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