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Basic Electrochemistry

Basic Electrochemistry

Basic Electrochemistry. What is electrochemistry?. • Electronics : the transport of electrons (or positive holes) Optoelectronics : light + electronics • Electrochemical systems ( electrodics + ionics ) • Electrochemistry :

By benjamin
(482 views)

Iontophoresis

Iontophoresis

Iontophoresis. Chapter 6. IONTOPHORESIS. Use of Direct Current to facilitate delivery of ions into the skin for therapeutic purposes. Mechanism of delivery: “LIKE CHARGES REPEL”. Positive Electrode (anode) delivers + ions. Negative Electrode (cathode) delivers - ions. Iontophoreis.

By Leo
(1819 views)

Last class - More corrosion - micro cells 	Welding HAZ 	Sensitization Ol' Harold's story

Last class - More corrosion - micro cells Welding HAZ Sensitization Ol' Harold's story

The purpose of scientific thought is to predict what will happen in given experimental circumstances. All the philosophical discussion is an evasion of the point. – Feynman. Last class - More corrosion - micro cells Welding HAZ Sensitization Ol' Harold's story. Today -

By Jims
(229 views)

Ampere’s Law

Ampere’s Law

Ampere’s Law. Alan Murray. dl. B. B. I. B. dl. dl. B. Try this …. Create a contour for integration (a circle seems to make sense here!). Take a closed contour. These currents are “enclosed”. And these currents are not!. ò H . dl = Current I enclosed.

By jaden
(406 views)

Simulation of bow tie(two pair)

Simulation of bow tie(two pair)

Simulation of bow tie(two pair). With Gaussian plane wave excitation. Far_zone data (1). Far_zone data (2). Far_zone data (3). Near_zone data (1) -- Scattered Field. 1. 2. 3. 1. Ex Scattered Field(V/m) vs. Time(ns) 2. Ey Scattered Field(V/m) vs. Time(ns)

By Sophia
(164 views)

Electrical Stimulating Currents

Electrical Stimulating Currents

Electrical Stimulating Currents. Physiologic Response To Electrical Current. Creating muscle contraction through nerve or muscle stimulation Stimulating sensory nerves to help in treating pain Creating an electrical field in biologic tissues to stimulate or alter the healing process.

By liam
(632 views)

Seoul National University, South Korea

Seoul National University, South Korea

5th International Seminar on ORC Power Systems, Athens Greece, 9-11 September 2019. Off-Design Analysis of Organic Rankine Cycle Integrated with Proton Exchange Membrane Fuel Cell (PEMFC). 9 September 2019. Hong Wone Choi, Jin Young Park, Dong Kyu Kim, Min Soo Kim.

By perdita
(1290 views)

SYNTHESIS OF COPPER NANOWIRES WITH NANO-TWIN SUBSTRUCTURES

SYNTHESIS OF COPPER NANOWIRES WITH NANO-TWIN SUBSTRUCTURES

SYNTHESIS OF COPPER NANOWIRES WITH NANO-TWIN SUBSTRUCTURES. 1 Joon-Bok Lee 2 Dr. Bongyoung I. Yoo 2 Dr. Nosang V. Myung 1 Department of Chemical Engineering, A-217 Engineering Quadrangle, Princeton University, Princeton, NJ 08544-5263, USA

By afya
(352 views)

M. Talha GONULLU , Ertan ARSLANKAYA, Fatih ILHAN, Ugur KURT, Omer APAYDIN Y i ld i z Tech . Univ . , Env . Eng .

M. Talha GONULLU , Ertan ARSLANKAYA, Fatih ILHAN, Ugur KURT, Omer APAYDIN Y i ld i z Tech . Univ . , Env . Eng .

M. Talha GONULLU , Ertan ARSLANKAYA, Fatih ILHAN, Ugur KURT, Omer APAYDIN Y i ld i z Tech . Univ . , Env . Eng . Dept . Istanbul, Turkiye. RecShow '08 Middle East Recycling, Waste & Environmental Management Congress Kempinski Hotel, Dead Sea - Jordan 17-19 February 2008.

By mikhail
(230 views)

Laser III Device Design & Materials Selection

Laser III Device Design & Materials Selection

Laser III Device Design & Materials Selection. EBB424E Dr Zainovia Lockman. By the end of the course you would be able to answer the following questions:. What is homojunction laser? What is heterojunction laser? Explain the principles of heterojunction laser.

By arich
(749 views)

Semiconductors

Semiconductors

Semiconductors. Crystalline solid materials whose resistivities are values between those of conductors and insulators. Good electrical characteristics and feasible fabrication technology are some reasons why silicon is by far the most important semiconductor material in use today.

By gigi
(604 views)

Tobin J. Marks Department of Chemistry and The Materials Research Center Northwestern University

Tobin J. Marks Department of Chemistry and The Materials Research Center Northwestern University

Tobin J. Marks Department of Chemistry and The Materials Research Center Northwestern University. Charles E. and Emma H. Morrison Professor of Chemistry Professor of Materials Science and Engineering Vladimir N. Ipatieff Professor of Catalyic Chemistry. Biographical sketch.

By haley
(333 views)

Current & Resistance

Current & Resistance

Current & Resistance. - Current and current density Ohm’s Law Resistivity Resistance. Electrical Current. CURRENT I is the amount of positive charge flowing past a fixed point in the wire per unit time : if charge dQ flows in time dt

By janna
(197 views)

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1. 2. 3. 4. 5. An electric device, which heats water by immersing a resistance wire in the water, generates 60 cal of heat per second when an electric potential difference of 11 V is placed across its leads. What is the resistance of the heater wire? (Note: 1 cal = 4.186 J). {image} {image}

By tam
(257 views)

Some technical characteristic of current-limiting reactors

Some technical characteristic of current-limiting reactors

Some technical characteristic of current-limiting reactors. Airtype - reactor linear magnetic behaviour (L - constant) spreading magnetic field around reactor (weak EMC behaviour) damping of reactor noise is difficult space consuming earth-quake withstand capability expensive

By rosina
(452 views)

Reliability Laboratory

Reliability Laboratory

Reliability Laboratory. Presentation on Setting up Reliability Laboratory Presented by Dr. G.H. Massiha Department of Industrial Technology University of Louisiana, Lafayette. Topics. Need for setting up Reliability Laboratory Reliability issues in Metal thin Films.

By moeshe
(281 views)

Ultra High Speed InP Heterojunction Bipolar Transistors

Ultra High Speed InP Heterojunction Bipolar Transistors

Ultra High Speed InP Heterojunction Bipolar Transistors. Mattias Dahlström. Trouble is my business, (Raymond Chandler) . Ultra High Speed InP Heterojunction Bipolar Transistors. Introduction to HBT’s How to make a fast HBT… Delay terms The graded base The base-collector grade

By donny
(256 views)

A 40-Gb/s Decision Circuit in 90-nm CMOS T. Chalvatzis 1 , K. H. K. Yau 1 , P. Schvan 2 , M.-T. Yang 3 and S.

A 40-Gb/s Decision Circuit in 90-nm CMOS T. Chalvatzis 1 , K. H. K. Yau 1 , P. Schvan 2 , M.-T. Yang 3 and S.

A 40-Gb/s Decision Circuit in 90-nm CMOS T. Chalvatzis 1 , K. H. K. Yau 1 , P. Schvan 2 , M.-T. Yang 3 and S. P. Voinigescu 1 1 Department of Electrical and Computer Engineering, University of Toronto, Toronto, Canada 2 Nortel Networks, Ottawa, Canada 3 TSMC, Hsin-Chu, Taiwan.

By dinah
(104 views)

The Band Theory of Solids

The Band Theory of Solids

. V. x. 0. L. Single electron theory: for any electron everything in the crystal represented by an effective periodic potential . The Band Theory of Solids. ?. What are the limitations of the model of the free electron gas.

By erica
(798 views)

Phonons

Phonons

Phonons. Packets of sound found present in the lattice as it vibrates … but the lattice vibration cannot be heard.

By dreama
(421 views)

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