'Dc current' diaporamas de présentation

Microelectronics Processing Physical Vapor Deposition

Microelectronics Processing Physical Vapor Deposition. Issues. Vacuum basics Vacuum Technology basics Some vacuum systems Evaporation Sputter deposition Metallization. Vacuum basics. Kinetic theory of gases At relatively low pressures Not too low temperatures

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DC Generator

By Sudheer kethamreddy. DC Generator . Whenever a conductor is moved within a magnetic field in such a way that the conductor cuts across magnetic lines of flux, voltage is generated in the conductor. The AMOUNT of voltage generated depends on: the strength of the magnetic field,

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Signal vs. Noise

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INTRODUCTION

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Furnace Troubleshooting

Furnace Troubleshooting. Combustion Service. Objectives : Good furnace troubleshooting requires enhanced skills from the servicer. Service Tips Induced draft furnace combustion process Combustion system service checks System effects on draft Flame detection - principles and service checks

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Electronics Introduction

Electronics Introduction. For BHS Physical science 9 th grade. Electricity. It is the many physical quantities and properties associated with electrical charges. This area of science is responsible for all electronics devices and an integral part to all modern science. Types of Charges.

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Class B Amplifier

Class B Amplifier. In class B, the transistor is biased just off. The AC signal turns the transistor on. The transistor only conducts when it is turned on by one-half of the AC cycle. In order to get a full AC cycle out of a class B amplifier, you need two transistors:.

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CAPACITORS

CAPACITORS. OBJECTIVES. Proper understanding of the definition of capacitors . Identify the relationship between a resistor and a capacitor. Calculate capacitance in series and parallel circuit and in terms of same capacitance value .

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Toroids

Toroids. An Introduction By Nicolas - M1HOG. What is Toroid?. Doughnut shaped object whose surface is a torus. Its annular shape is generated by revolving a circle around an axis external to the circle. What is a Toroidal Inductor?.

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Josephson Junction based Quantum Control

Josephson Junction based Quantum Control . Erick Ulin-Avila Seth Saltiel. Control Systems. The dynamics of an energetic system can be modeled as a Mass-Spring-Damper system. Control Theory is very well understood in many regimes, i.e. Linear,

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Josephson Junction based Quantum Control

Josephson Junction based Quantum Control . Erick Ulin-Avila Seth Saltiel. Control Systems. The dynamics of an energetic system can be modeled as a Mass-Spring-Damper system. Control Theory is very well understood in many regimes, i.e. Linear,

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Quantum pumping and rectification effects in interacting quantum dots

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ENGR 111 Lecture 3

ENGR 111 Lecture 3. Reading: Chapters 19, Class notes. Lecture 3: DC Fundamentals . Electrical Charge (q): more or fewer electrons In an atom, # of electrons = # of protons When they differ, electrical charge is present Each electron/proton carries a unit charge

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INVASIVE METHODS 1. Mechanical and chemical

INVASIVE METHODS 1. Mechanical and chemical. 1. Rotary and elevator instruments. Are widely used in surgery and stomatology (scalpels, tweezers, peans). 2. Water scalpel. cut s tissues by narrow water torrent ( isotonic solution of NaCl) device consists of: pressure

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Introduction to DC Machines

Introduction to DC Machines. Advantages Adjustable speed Develop rated torque at all speeds Higher torque than an equivalent AC machine Uses Robots Automotive Railroads. Elementary 2-pole DC motor. Poles created by DC current in the field winding or by a permanent magnet.

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Electric Current and Resistance

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Class B Output

Class B Output. Biasing the Class B Output. * No DC current is used to bias this configuration. *Activated when the input voltage is greater than the Vbe for the transistors. * npn Transistor operates when positive, pnp when negative. * At a zero input voltage, we get no output voltage.

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blackout

blackout. By Adam boult and Cameron Ward. introduction. Imagine a blackout , when your in school , getting cold , only 2 days of food , and there is no way of contacting loved ones . Will you ever get out of this ? Will the power ever come back? And will you ever see your parents again ?.

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Metals

Metals. 20 th century building materials. Pre-20 th century metal use. The 20th century has seen the rapid expansion of the number of metal blends used in the building process, both in the structural components and as decorative elements.

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