Nanorobotics: An insight into the future
Abstract
Precise control of the structure of matter at the nanometer scale will have revolutionary implications for science and technology. Nanoelectromechanical systems (NEMS) will be extremely small and fast, and have applications that range from cell repair to ultra strong materials to human internal fluids. This paper describes the first steps towards the construction of NEMS by assembling nanometer-scale objects using a Scanning Probe Microscope as a robot. This paper also des ....etc

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transmitter circuit diagram, receiver circuit diagram. and documentation. ....etc

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Nanotechnology, development and production of artefacts in which a dimension of less than 100 nanometres (nm) is critical to functioning (1 nm = 10-9 m/40 billionths of an inch). Nanotechnology is a hybrid science combining engineering and chemistry. Atoms and molecules stick together because they have complementary shapes that lock tog- ether, or charges that attract. As millions of these atoms are pieced together by nanomachines, a specific product will begin to take shape. The goal of nanotechnology is to manipulate atoms individually and pl ....etc

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Public key cryptosystems were invented in the late 1970â„¢s, with some help from the development of complexity theory around that time. It was observed that based on a problem so difficult that it would need thousands of years to solve, and with some luck, a cryptosystem could be developed which would have two keys, a secret key and a public key. With the public key one could encrypt messages, and decrypt them with the private key. Thus the owner of the private key would be the only one who could decrypt the messages, but anyone knowing the ....etc

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http://freespaceopticsfreespaceoptics/images/flightstrata_photo.jpg
Free space optical communications is a line-of-sight (LOS) technology that transmits a modulated beam of visible or infrared light through the atmosphere for broadband communications. In a manner similar to fiber optical communications, free space optics uses a light emitting diode (LED) or laser (light amplification by stimulated emission of radiation) point source for data transmission. However, in free space optics, an energy beam is collimated and transmitted t ....etc

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The Robot control using the wireless communication and the serial communication



Executive Summary
The NASA Robotics Alliance Cadets Program is being designed to be implemented at a
very low start-up cost, and to make this goal obtainable, the program is being developed
using low to no cost components from already developed, well-tested and robust
engineering testbeds.
In this project we are trying to establish both wireless communication between the mob ....etc

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K.Abhigna
III/IV Btech, ECE.
JNTU,Anantapur.
P.Karuna Sree.
III/IVBtech,ECE.
JNTU,Anantapur


Abstract:

This paper gives a brief idea of how the mobile communication has evolved,its generations. Different generations have been developing since then each generation coming out overcoming previous generation drawbacks.One such technology in fourth generation is OFDM. OFDM based technique looks more promising as a 4G standard surpassing the 3G standards .So,a complet ....etc

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Public key cryptosystems were invented in the late 1970's, with some help from the development of complexity theory around that time. It was observed that based on a problem so difficult that it would need thousands of years to solve, and with some luck, a cryptosystem could be developed which would have two keys, a secret key and a public key. With the public key one could encrypt messages, and decrypt them with the private key. Thus the owner of the private key would be the only one who could decrypt the messages, but anyone knowing the publ ....etc

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Advantages of digital communication system over analog communication system
Communication systems
 The block diagram on the top shows the blocks common to all communication systems
Remember the components of a communications system:
 Input transducer: The device that converts a physical signal from source to an electrical, mechanical or electromagnetic signal more suitable for communicating
 Transmitter: The device that sends the transduced signal
 Transmission channel: The physical medium ....etc

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transmitter circuit and receiver circuit diagram for optical communication based counter. and documentation ....etc

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