the air flow detector using led indicates the presence of air in the space by the variation of resistance and corresponding changes in the voltage. the glowing of led is depends on the presence of air. the large amount of air flow will decrease the resistance. ....etc

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HI I AM SUMAN NATH.. I WANT THIS PRESENTATION..I AM AN INSTRUMENTATION STUDENT.. ....etc

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http://seminarsprojects.net/Thread-mass-airflow-sensor ....etc

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Abstract

The differential pressure method is widely used nowadays for air leak detection. In this method, a master tank, which is leak-tight, a tested tank are simultaneously charged to a certain pressure and then closed off each other. If there is air leak in the tested tank, the air leak can be detected from the different pressure occurs between the two tanks. Since both tanks temperature is inconsistent in detection process will lead to changes in pressure affect the detection precision. Although, if the tested tank is leak-tight. This ....etc

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Definition: A device that's used in many electronic fuel injection systems for measuring the volume of air entering the engine. Some use a spring-loaded vane while others use a hot wire or heated filament to sense air flow.
A mass air flow (MAF) sensor responds to the amount of a fluid (usually a gas) flowing through a chamber containing the sensor. It is intended to be insensitive to the density of the fluid.

References:
http://en.wikipediawiki/Mass_flow_sensor
http://autorepair.aboutlibrary/glossary/bldef-022.htm ....etc

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please give some dataflow diagrams for airport management system.
airport management system of all modules dataflow diagrams are give to us. ....etc

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Description.

This circuit can give a visual indication of the rate of air flow.It can be also used to check whether there is air flow in a given space.

The filament of a incandescent bulb is the sensing part of the circuit.When there is no air flow the resistance of the filament will be low.When there is air flow the resistance drops , because the moving air will remove some of the heat generated in the filament.This variations in the resistance will produce variation of voltage across the filament.These variations will be picked up by th ....etc

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Usefulness of DC Power Flow for Active Power Flow Analysis



I. INTRODUCTION
STATIC power system analysis has always been
performed using full power flow. It is one of the
fundamental tools for power system analysis and is used in
the operational as well as planning stages. Vertically
integrated companies have used it to control their systems, as
well as to plan the optimal economic operation of generation
resources, either by means of optimal power flow or unit
commitment. ....etc

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