Innovative Printed Circuit Board Technology for Heat Removal with
Application to Power LED based Operating Room Lamps
Abstract:
Using a simple analytical model we investigate the effect of thermal vias on the heat
transfer through a printed circuit board (PCB) . We show that thermal vias can increase the heat
transfer coefficient by orders ofmagnitude. The model considers the arrangement and the geometry of
the vias, the metallization thickness and the solder fillets. The application part ofthe paper addresses
three protot ....etc

[:=Read Full Message Here=:]

In telecommunication, there are several types of microstrip antennas (also known as printed antennas) the most common of which is the microstrip patch antenna or patch antenna.

Microstrip Patch Antenna
Microstrip patch antennas are among the most popular antennas, used in various application areas. Model building for this type of antennas can be done in two ways: in WIPL-D general-purpose 3D modeler and in the tool specialized for printed structures, AW Modeler. A simple microstrip patch antenna is simulated here. The simulated results are ....etc

[:=Read Full Message Here=:]

PRODUCTS
Vasantha-Electronic Manufacturing Services
For the emerging potentials in Electronic manufacturing service vasantha is equipped with latest equipments and competent people who can make things happen. They are sourcing electronic components both from India and abroad. Solder the components using wave soldering/SMD soldering with high reliability. The PCBs are tested using various test jigs.
Vasantha advanced systems provides PCB Assembly to a wide range of customers within a variety of industries, whet ....etc

[:=Read Full Message Here=:]

All-inkjet-printed flexible electronics
fabrication on a polymer substrate



Abstract

All-printed electronics is the key technology to ultra-low-cost, large-area
electronics. As a critical step in this direction, we demonstrate that laser
sintering of inkjet-printed metal nanoparticles enables low-temperature metal
deposition as well as high-resolution patterning to overcome the resolution
limitation of the current inkjet direct writing processes. To demonstrate this
process combined with the implement ....etc

[:=Read Full Message Here=:]

ABSTRACT

This article describes a novel visual information concealment technique, referred to as optical watermarking, for the authentication of original printed documents. An optical watermark is a two-dimensional binary image. It can be of any shape and can be printed on any part of a document. The optical watermark is constructed by the superposition of multiple two-dimensional binary images (referred to as layers), each with different carrier structural patterns embedding various hidden information. The hidden information ....etc

[:=Read Full Message Here=:]

Most electronic hobbyist did not know how to make printed circuit board for their small circuits. In this article I will tell you how to make a printed circuit board easily. For making printed circuit board (PCB) for small circuits you need clad board, ferric chloride (FeCl2), OHP marker pen, ect.
First of all prepare the layout of the circuit using any PCB schematic drawing software (e.g. - Dip Trace, Express PCB, Eagle, PSpice, ect). Print the layout on an ordinary paper.
After preparing the layout, cut the clad board ....etc

[:=Read Full Message Here=:]

The inkjet printing has grown into a mature noncontact patterning method in the recent times. With this method, large-area patterns can be easily created with high speeds while using only small amounts of functional materials and also high resolution can be achieved. RFID tags, organic thin-film transistors OTFTs and electrochromic devices ECDs are the major areas employing the method of inkjet printing. The future of plastic electronics is focussed on this technology.
solution processable materials are used to print conductive features onto ....etc

[:=Read Full Message Here=:]

Low-resistance printed conductors crucial for the development of ultra-low cost electronic systems such as radio frequency identification tags. Low resistance conductors are required to enable the fabrication of high-Q inductors, capacitors, tuned circuits, and interconnect. Furthermore, conductors of appropriate work function are also required to enable fabrication of printed Schottky diodes, necessary for rectification in RFID circuits. Last year, we demonstrated the formation of low-resistance conductive printed structures using gold nano pa ....etc

[:=Read Full Message Here=:]

to get information about the topic printed character recognition soft computing related topic refer the page link bellow

http://seminarsprojects.net/Thread-segmentation-of-optical-character-recognition?pid=45842#pid45842 ....etc

[:=Read Full Message Here=:]

DIPOLE ANTENNAS

radiation is independent of (rotationally symmetric about
the z axis). Dipole antennas and arrays of dipoles are commonly
used for high-frequency (HF) and ultrahigh-frequency
(UHF) communications, TV, and FM broadcasting, and as
electric field probes. This article will describe the basic nature
and applications of dipole antennas and some of their variations
such as biconical and bowtie antennas, slot dipoles,
folded dipoles, sleeve dipoles, and shunt-fed dipoles. The commonly
used broadband lo ....etc

[:=Read Full Message Here=:]