A klystron is a specialized linear-beam vacuum tube, invented in 1937 by American electrical engineers Russell and Sigurd Varian, which is used as an amplifier for high radio frequencies, from UHF up into the microwave range. Low-power klystrons are used as oscillators in terrestrial microwave relay communications links, while high-power klystrons are used as output tubes in UHF television transmitters, satellite communication, and radar transmitters, and to generate the drive power for modern particle accelerators.

In a klystron, an electro ....etc

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Cranes are a family, Gruidae, of large, long-legged and long-necked birds in the group Gruiformes. There are fifteen species of crane in four genera. Unlike the similar-looking but unrelated herons, cranes fly with necks outstretched, not pulled back. Cranes live on all continents except Antarctica and South America.

They are opportunistic feeders that change their diet according to the season and their own nutrient requirements. They eat a range of items from suitably sized small rodents, fish, amphibians, and insects to grain, berries, and ....etc

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Respected Sir/Madam
I want to find some disadvantages of using LDR based automatic switch street light system.
But I am not able to find it. Please send me some disadvantages of using LDR based automatic switch street light system. I liked your site and even wanted to register on it. But due to this I will never register.
Thank You
[email protected] ....etc

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Abstract

Automatic Night Lamp with Morning Alarm System is a simple yet powerful concept, which uses transistor as a switch. By using this system manual works are 100% removed. It automatically switches ON lights when the sunlight goes below the visible region of our eyes. This is done by a sensor called Light Dependant Resistor (LDR) which senses the light actually like our eyes. It automatically switches OFF lights whenever the sunlight comes, visible to our eyes and activates the morning alarm.

By using this system energy consumption i ....etc

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http://seminarsprojects.n ....etc

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Introduction to westernization.
Westernization is a process in which societies adopt western cultures in areas such as industry, technology, law, politics, economies and lifestyles, clothing, language etc. Today, there are many people who are westernizing themselves among many cultures. Westernization has become common in the world especially in India. People normally get a plastic surgery to look western is because it gives the back a round and a perkier shape, it also straightens hair. People want to change themselves like this because they ....etc

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advantage and disadvantages of foundry sand

Let me briefly introduce the advantages and disadvantages of green sand casting process in China, and I hope it can be an interesting cast for buyers to learn more about the characters.

Advantages:

In China, a process of green sand molding is very common, and most iron foundries can produce iron castings for this process. Its mainly due to the benefits of this process.

1. Simple production process

The production process of green sand molding is a very simple comparison, so easy to manipulate. The ....etc

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advantage dis advantage of electronic eye

Today science and technology are making advances at an amazing rate. So vast is its impact that people now fear the unthinkable. Technology can more appropriately be termed as a friend of humanity. Inventions are the best ways to serve the mankind. Today we are submerged in the sea of discoveries and inventions. The advantages, the society has received from these science inventions and discoveries are immeasurable. From telephones to the internet, calculators to computers, cars to rockets, we are mere ....etc

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3 Point Starter Working Principle and Construction of Three Point Starter

A 3 point starter in simple words is a device that helps in the starting and running of a shunt wound DC motor or compound wound DC motor. Now the question is why these types of DC motors require the assistance of the starter in the first case. The only explanation to that is given by the presence of back emf Eb, which plays a critical role in governing the operation of the motor. The back emf, develops as the motor armature starts to rotate in presence of the magneti ....etc

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