Introduction and application areas for MEMS Introduction: The micro mechanical device embedded with electronics/electrical system fabricated through a mix of integrated circuit manufacturing and micro-machining process where material is shaped by etching away micro layers is called Micro Electro Mechanical System (MEMS). The intelligent electronic system part is integrated in the same way of IC device fabrication. The most popular material used for MEMS is Silicon for it’s semiconductor ‚ physical
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compounds do not conduct electricity in solid form but their aqueous solution conduct electricity. Why? Or Common salt does not conduct electricity but its aqueous solution conduct electricity. Why? Ans. Ionic compounds (e.g.- Common salt) have strong electrostatic forces of attraction between their constituent ions. Thus ions are strongly held and cannot move. Therefore‚ cannot conduct electricity. Aqueous solution means solution prepared by dissolving in water. Water has a high dielectric constant(ability
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Electrolysis design internal assessment Introduction to experiment Electrolysis is a method using a direct electric current to drive a non-spontaneous chemical reaction. It involves the stage in the separation of elements from naturally occurring sources such as ores. In this experiment‚ methods to alter rate of electrolysis will be attempted to be discovered. Although many contributing factors could affect the rate of electrolysis which could include internal energy within the electrolyte or
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B1.1 Licence Exclusions Removal E1/E4/E5 – Flexible Delivery Solution This training provides a pathway for holders of CASA B1.1 licences endorsed with electrical systems E1/E4/E5 exclusions who wish to have the exclusions removed from their licence. This Skill Set covers the MEA11 Aeroskills Training Package units of competency that must be attained before undergoing specific type training in electrical and instrument-related avionic systems. Who should enrol? Licensed Aircraft Maintenance Engineers
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Teenager invents revolutionary device; A device which can charge a cell phone in just 20 seconds A California teen has attracted the attention of tech giants Google for her potentially revolutionary invention which charges a phone in 20 seconds flat. The super-fast charging device has been dubbed a super capacitor by 18-year-old Esha Khare‚ of Saratoga - as she took home $50‚000 from the Intel International Science and Engineering Fair‚ which took place in Phoenix this week. The device will
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1. Describe the controversy over whether carbon dioxide should be classified as an air pollutant. * 93% of CO2 emissions are natural due to the Carbon Cycle. The rest is from human activities‚ such as burning fossil fuels and clearing out forests. The EPA does not regulate CO2 emissions under the Clean Air Act‚ and many environmentalists disagree with this. However‚ the coal and electric businesses oppose the regulation of CO2 emissions because such a regulation would cost them money to cap
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HOW DOES THE SOLUBILITY OF POTASSIUM CHLORIDE (KCL) AND POTASSIUM IODIDE (KI) IN WATER VARY WITH TEMPERATURE? AIM To observe solubilities of KCl and KI with water at different temperatures To compare the two solubility curves and discuss what might vary the solubility of different ionic compounds. THE VARIABLES DEPENDENT VARIABLE Temperature INDEPENDENT VARIABLE Amount of solute (KCl‚ KI) CONSTANTS Amount of the solvent (water)‚ pressure APPARATUS 100G OF POTASSIUM CHLORIDE 100G
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better than 50 pm resolution and magnifications of up to about 10‚000‚000x whereas ordinary‚ non-confocal light microscopes are limited by diffraction to about 200 nm resolution and useful magnifications below 2000x. The electron microscope uses electrostatic and electromagnetic lenses to control the electron beam and focus it to form an image. These electron optical lenses are analogous to the glass lenses of a light optical microscope. Electron microscopes are used to investigate the ultrastructure
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The X-Ray imaging system has one function‚ and that is to provide a constant flow of electrons that are strong enough to produce and x-ray beam to create an image. There are many different sizes and types of imaging systems but no matter what system you use‚ every type will have three main sections. Those sections are the control console‚ the high voltage generator and the x-ray tube. The x-ray tube is located in the exam room‚ the control console is located in an adjoining room that is separated
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Firstly is hidden sources of decontamination. Desktop PCs and different items with inward fans that draw air into the case may have channels or electrostatic gadgets to control dust admission. These channels or the hardware case may be a store of pollution. In the event that chose advancements may harm the thing or may not infiltrate to concealed areas‚ then these things may be managed in an option
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