SEM
Introduction
The optical microscope was invented in the early 17th century. Although this discovery that revolutionized science, these were the first microscopes little more than one type magnifying glasses. The centuries many scientists then looked for new versions of the microscope with an improved resolution. In the year 1900, the maximum resolution achievable with a light microscope reached: 2 micrometers.
This maximum resolution we can do as follows:
The wavelength is important for the resolution on ee optical system, es ....etc

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COOLING TECHNIQUES IN TRANSMITTER
Introduction
In modern A.M. transmitters power valves are used in the PA and modulator stages, which are condensed vapour cooled ceramic tetrodes. In the old generation transmittes, triodes are used in the PA, modulator and exciter stages. Both the tetrodes and triodes tubes are capable of being operated at high voltages (11 kV DC) and large anode current of the order of 50 Amps. They also draw large filament current of about 620 Anps at 24 volt CQK-350. Hence the tubes di ....etc

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Light weight material-Carbon Fibre

Abstract
Steel and other hard construction materials have revolutionized the field of industry. Now, a stage has come that there is a need of a better material to catch up with the growing needs and demands of the modern society. This need has bought up a newer material to the field which is now known as Carbon Fibres.
Carbon fibre is one of the latest reinforcement materials used in composites. It's a real hi-tech material, which provides very good structural proper ....etc

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The safety of future manned missions to the moon and Mars hinges upon a proper understanding of how fires behave in outer space zero gravity/ micro gravity environments. Past studies have been limited to low oxygen concentrations and configurations in which the high velocity fuel enters an oxidizing atmosphere. However, one important fire scenario in outer space is a high velocity high oxygen oxidizer jet encountering fuel (an inverse flame configuration). This study focuses on flame shapes of oxygen- enhanced flames in inverse and normal diffu ....etc

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ABSTRACT
The subject gives a brief look on the suitability of composite leaf spring on vehicles and their advantages. Efforts have been made to reduce the cost of composite leaf spring to that of steel leaf spring. The achievement of weight reduction with adequate improvement of mechanical properties has made composite a very replacement material for convectional steel. Material and manufacturing process are selected upon on the cost and strength factor. The design method is selected on the basis of mass production.
From t ....etc

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The Technique of measuring high temperature is known as pyrometry and the instrument employed is called pyrometer. Pyrometer is specialized type of thermometer used to measure high temperatures in the production and heat treatment of metal and alloys. Ordinary temperatures can be measured by ordinary thermometer, instead pyrometer is employed for measuring higher temperature.
Any metallic surface when heated emits radiation of different wavelengths which are not visible at low temperatures but at about 5400C radiations are in shorter wavelengt ....etc

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Introduction
Preface To SWARAJ
Punjab, the bread basket of India, the land with 50376 sq. Km is situated in Northern part of India. It is agriculturally Indiaâ„¢s most advanced and most prosperous state. Punjab Tractors limited was promoted by PSIDC as one of its projects in 1970 for the manufacturing of agricultural tractors. Since, this gave independence to country from import of tractors, so brand name SWARAJ, total independence was given.

SWARAJ tractors conceived in 1965 by a team of dedicated engineers a ....etc

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I want to do this implementation in my college lab ....etc

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1.Regarding Barium Enema examination, which of the following is not true ?
(A)instant enema is used in ulcerative colitis
(B)soap and water enema is better than complete bowel wash in the preparation of double contrast barium enema
(C )pnematosis intestinalis is a rare complication of barium enema study
(D)24 hour post evacuation film is a must to rule out Hirshsprung's disease

2.Regarding IVP examination, which of the following is not true ?
(A)delayed nephrogram is a sign of decreased renal function
(B)ball pyelo ....etc

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Diamond is the hardest material known to man kind. When used on tools, diamond grinds away material on micro (Nano) level. Diamond is the hardest substance known and is given a value of 10 in the Mohs hardness scale, devised by the German mineralogist Friedrich Mohs to indicate relative hardness of substances on a rating scale from 1 to 10. Its hardness varies in every diamond with the crystallographic direction. Moreover, hardness on the same face or surface varies with the direction of the cut.

Diamond crystallizes in different forms. E ....etc

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ABSTRACT
The number of vehicles on our roads is burgeoning day by day. This is turn forced almost all this vehicle manufactures to think about the extra safety instruments and electronic controls to attach with these products for giving the users a safety derived in all road conditions through a mass flow traffic. If asked, one should always mention that the right driving is very cumbersome due to the dazzling light problems and the frequent dipping of headlights by manual means that often causes fatigue ....etc

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This topic is devoted to the analysis of the mechanical behavior of filament-wound pipes. The process of filament winding makes it possible to produce rotating parts made of composite material containing polymers reinforced with long fibers. Most of the time, this process consists in winding a fiber tow coated with a thermosetting polymeric matrix around a mandrel, and thus covering the entire mandrel after successive passages. Following a polymerization phase, the mandrel can be removed in order to get only the composite structure. In certain ....etc

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