...Date performed: December _, 2013 Date submitted: January 6, 2013 ABSTRACT Corrosion is a process through which metals in manufactured states return to their natural oxidation states, a reduction-oxidation reaction in which the metal is being oxidized by its surroundings, often the oxygen in air [1]. The first part of the experiment involved the products of rusting. Certain amounts of 3% NaCl, 10% K3Fe(CN)6 and phenolphthalein were combined. A piece of paper was soaked in this mixture. 2 nails (one straight, one bent) were wrapped in the damp paper allowing space in between, then left for 10mins. After which, colors formed in the paper napkins were observed. The second part was the bimetallic corrosion. 2 iron nails were cleaned using sand paper. In one nail, copper wire was coiled around its tip. On the other, a zinc granule was attached to its tip. Another paper was soaked in the same mixture in which the nails were wrapped separately and were left for 10mins. The papers were opened and sites where pink and blue colors formed were examined. The results didn’t absolutely correspond to the objectives of this experiment due to the errors on the materials used; however, it was inferred that during the process of corrosion, the metal ions dissolve and the electrons transfer to another location where they’re taken up by oxygen. A mixture of hydrous iron oxides is then produced from the resulting hydroxide ions which react with iron (II). This mixture is...
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...Troubleshooting Electrical Circuits EET-110 Research Paper Prof. Jeevan D’Souza I pledge to support the Honor System of ECPI. I will refrain from any form of academic dishonesty or deception, such as cheating or plagiarism. I am aware that as a member of an academic community it is my responsibility to turn in all suspected violators of the honor code. I understand that any failure on my part to support the Honor System will be turned over to a Judicial Review Board for determination. I will report to a Judicial Review Board hearing if summoned. Signature: Gary Martin- 1/17/2016 Narrative My Topic for this research paper is Troubleshooting Electrical Circuits. I have a little experience with troubleshooting and maintenance of electrical circuits. I used to work in maintenance for a gentleman that owned twelve Burger Kings in my area. It was a very busy job, especially with regards to electrical issues. These Burger Kings had a lot of equipment, signs and electronics that required electrical power. Most of the equipment required extreme heat and for extended periods of time. When I started the job, I would go into one of my BK’s and the first thing I would do with an electrical issue was to test the issue to see what results I might get, most of the time the equipment just didn’t work at all. I would then go turn off the power to the equipment but, first I would make sure the breaker wasn’t thrown and the equipment had been properly plugged in to the power outlet...
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...is good for technicians who fix or repair printers along with a good learning experience. With my limited knowledge of printers I used this process to at least help diagnose the problem. If you have no idea how a printer works, I would not try to fix it. People have become hurt with these machines leave it to the professionals. Step 1: Cleaning When an image has been deposited on the paper and the drum has separated from the paper, any remaining toner must be removed from the drum. A printer may have a blade that scrapes all excess toner from the drum. Some printers use an AC voltage on a wire that removes the charge from the drum surface and allows the excess toner to fall away from the drum. The excess toner is stored in a used toner container that may be emptied or discarded. Step 2: Conditioning This step involves removing the old latent image from the drum and conditioning the drum for a new latent image. Conditioning is done by placing a special wire, grid, or roller that receives a negative charge of about – 600 volts DC uniformly across the surface of the drum. The charged wire or grid is called the primary corona. The roller is called a conditioning roller. Step 3: Writing The writing process involves scanning the photosensitive drum with the laser beam. Every part of the drum that is exposed to the light has the surface charge reduced to about – 100 volts DC. This electrical charge has a lower negative charge than the remainder of the drum. As the drum turns...
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...Bluetooth technology takes the wires away so you're free to do more, from almost anywhere. It's wire-free connectivity that brings simplicity to your home, your office or even on the go. No time for tangles when it comes to your mobile devices? Discover the advantages of connecting your mobile phone, computer, car, stereo headset, MP3 player, iPod* and more with wireless Bluetooth technology. BLUETOOTH TECHNOLOGY Bluetooth technology is how mobile phones, computers, and personal digital assistants (PDAs), not to mention a broad selection of other devices such as printers and speakers, can be easily interconnected using a short-range wireless connection. Now you can coordinate any Bluetooth enabled device and leave wired clutter and confusion behind. Wonder how Bluetooth technology actually works? In the past, electronic devices would require a variety of wires, cables, radio signals, connectors and plugs in order to operate. Today, Bluetooth technology streamlines the process and enables you to enjoy your favorite electronic devices- wire-free.More. *iPOD only with the Bluetooth connector WHO CAN BENEFIT FROM BLUETOOTH TECHNOLOGY? Anyone who wants to connect to their world quickly and easily can benefit from Bluetooth technology. From busy moms to business professionals on the move, Bluetooth technology cuts the cords and frees your hands - bringing simplicity and efficiency to almost any situation. PEOPLE ON THE GO Wires weren't meant for people on the...
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...store. I emptied, cleaned, and tore off the paper from a brown bread can that would act as a cavity to contain the flame and heat. Using a can opener, I removed both ends of the can. To create a grease collection site I molded several layers of folded tin foil to the bottom of a baked beans can, so the tin foil had a circular shape. Using ¼ inch wire mesh, I cut roughly a 4x4 slab and formed it into a circular shape, this would act as the cheese puff stand. With wire cutters I cut additional pieces of the wire mesh so there were three “legs”, with one side open. I then placed the wire stand into the grease collector, making sure there...
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...Abstract This paper explores the origin of wire services, major new agencies providing those services, and the evolution of the service over its history. Wire services are necessary for the facilitation of news internationally. The methods of providing news from a wire service, or news agency, to other newspaper, periodical, radio, television, or other communication outlet has evolved throughout history. This paper explores the humble beginnings of wire services and highlights several of the major wire service providers, including Reuters, The Associated Press (AP), United Press International, Agence France Presse (AFP), and Bloomberg. The Evolution of Wire Services: Then and Now Wire services are integral components of international communication. Also referred to as a news agency, a wire service is an organization “that sends out syndicated news copy to subscribers by wire or by satellite transmission (Mish, 1997).” With origins dating back to the early 1850s (McPhail, 2010), wire services have not always conducted communication transfers with advanced technology like satellite transmissions. From telegraphy to teleprinters to radio, the process of getting news from a wire service to its dependent news and other providers has evolved substantially throughout the years. The conception and continued modernization of wire services can be attributed to various agency titans, including Reuters, The Associated Press (AP), United Press International, Agence France Presse (AFP)...
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...WIRE DRAWING Objective To know how copper and aluminum drawing is done, and also to understand the machine setting and how the machine operates. Introduction Wire drawing is the process by which a metal rod is forced through a series of varying cross section die(s) and hence the metal rod cross sectional area is varied so as to obtain the desired shape and size. In Kenwest cables company their are 3 wire drawing machines namely:- 1. M55 2. H20 3. M85 1.M55 This is the main copper drawing machine and the one which can handle the 1st drawing process which is hard drawing. The raw material used is usually copper rod of 7.9mm thickness as the hard drawing material. The M55 can also handle further copper drawing like the H20. Operation procedure The M55 has several units namely:- a) stand b) block c) drawing basin d) annealer e) spooler a) stand It is responsible in guiding the copper rod being fed to the block or drawing basin. If its hard drawing its fed to the block but when its further drawing its directly fed into the drawing basin. This is because at the block section the die obtained may have a larger diameter than the copper rod in the case of further drawing hence the block is not required. b) Block It is functional when hard drawing takes place. The 1st die is usually located in this section (the block section) hence drawing process begins at the block section. The copper rod being fed is usually about 7.9mm in diameter which is the diameter...
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...temperature to control the crackling noise. Make sure that there are no clumps, so use a stirring rod if necessary. After color change has taken place and the substance is done heating, then reweigh the substance, but be sure to zero out the balance before doing so. Then record weight. Add 20 ml of deionized water to change the substance to bluish green. Then place the aluminum coil wire in the solution fully submerged and occasionally knock off any copper particles on the wire with the glass stirring rod, this will allow the process to be completed quicker. A Buchner funnel was used to filter the water from the copper and then heated until dry. Data: Item | Mass (g) | Evaporating dish | 52.1795 | Evaporating dish + Salt | 53.1904 | Dish + Anhydrous Salt | 52.9639 | Watch glass + filter paper | 53.783 | Watch glass + filter paper +copper | 54.103 | Observations: When the substance is heated it changes from a light green to a brownish color. The green color fades and the wire will bubble and become coated with red copper particles. Then by knocking off the red copper particles off of the wire, it allows the...
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...the end result. Toyota implements a 200% quality check by the production and stores processes even before the vehicle is sent for quality inspection. This ensures that every vehicle is fitted with the correct part in the correct way. Toyota’s QA Network is very effective in achieving a very impressive SDR (straight delivery rate), vehicles with no defects that go straight to the customer and no delays. TSAM’s Quality assurance network Before condition 100% before QCI 100% 100% Figure 1 This is an example of the QA network for the wire frame wrong or missing part fitment. This part is an A rank defect if the wrong part or part not fitted. A rank means that this defect if not picked up and goes to the customer can lead to serious injury or death to the customer because wire harnesses fall under the fire hazard safety critical items. If the wrong harness is fitted it could foul with other parts because of different lengths of wires for specific units and...
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...Color Changing Mug RM18.00 "I'm not a paper cup" Ceramic Eco Cup RM25.00 "Paris je t'aime" DIY Photo Album RM16.50 6-in-1 Educational Solar Robot Kit Toy RM20.00 A6 Mini Paper Shredder RM35.00 Angry Birds Board Game RM69.90 Angry Birds Plush Toys (7cm) RM10.00 Ant City RM49.90 Avatar Mushroom Lamp RM39.00 BUGSLOCK Mosquito Repellent Band RM5.90 Baby Angel Cup Cover RM6.90 Beautiful Flowerpot Memo Clip (Set of 6pcs) RM16.00 Blender Alarm Clock RM59.00 Cable Turtle - Wire Organizer RM2.50 Canon EF 100mm Lens Mug RM55.90 Carousel Music Box RM180.00 Cat Paw USB Flash Drive RM55.00 Chi's Sweet Home - Cute Cat Mobile Phone Strap RM4.50 City Crash Bot RC Toy RM55.00 Clapping Controlled Projection Clock RM59.90 Creative Pouring Paint Lamp RM35.00 Creative TV Alarm Clock RM59.00 Cute Animal Cable Ties RM4.90 Cute LED Light Bulb Keychain RM9.90 Cute Mini Blackboard Clip RM2.50 Cute Owl Shape Calculator RM9.90 DIY European Miniature Shop RM38.00 DIY Gramophone Music Box RM150.00 DIY Mini Farm Keychain RM13.00 DIY Simple Planting RM5.90 DIY Straws RM15.90 DIY Wooden Puppy Desk Lamp RM95.00 DIY Wooden Robot Tissue Box RM85.00 Dachshund Dog Earphone Wire Winder RM3.90 Daren Waves - Ocean Wave...
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...metal, then we consider the chain jewelry. In preparing for this paper, I began my research with the understanding that finding information on chain making, especially historical information, would be a fairly simple task. However, after looking through old copies of jewelry history books, surfing the internet, and interviewing people with a long history in the industry, I arrived at the conclusion that the history of chain making is either a well kept secret or just not of much interest to anyone. Precious metal chain for jewelry has been around for a long time. Basically when man first began working extensively with gold back in Neolithic times he found that certain metals, most notably pure gold, were extremely ductile and could be hammered and stretched to a great degree. With the invention of wire, man could now take something rigid like metal and turn it into something flexible like chain. Chain making has always been, up until the middle of the 18th century, a labor-intensive time consuming hand operation. It was a well-versed art and most books on jewelry will demonstrate basic techniques on making chain by hand. Before automated wire drawing machines, the craftsman had to hammer down and pull metal through succeeding smaller dies to form thin wire. Once the wire was pulled down to the needed diameter, it was wound around a mandrel forming loops. Then, the craftsman would make a cut through the looped wire down the length of the mandrel forming individual offset loops...
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...ISP 209L Lab 5: Optical Interference Your Name ________I_______________________________ Section __003_ Objectives (A) To observe light transmitted through a very narrow slits and verify the relationship between the slit width and angles of the transmitted light. (B) To use the properties of light to measure the diameter of a small wire accurately by Babinet's Principle. (C) ) To observe light transmitted through two very narrow slits and to verify the relationship between the slit spacing and the angular separation of the transmitted light for the principle peaks. Part A: Single-Slit Diffraction Discussion This week’s and next week’s exercises show that light acts like a wave. Essentially a wave phenomenon known as interference will creating symmetric and rather beautiful patterns. All of matter has a dual nature, acting like both particles and waves. For example, a particle of light (known as a photon) acts like a particle when in collides with an electron. However, that same particle will act like a wave if it is allowed to interfere with other photons, or even with itself. This dual nature is described by Quantum Mechanics. However, the idea of combined particle and wave nature arose well before the development of Quantum Mechanics in the study of light. Newton argued that light must be particles because it did not appear to diffract and create interference patterns like other waves. Much later, Thomas Young demonstrated that light did diffract...
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...Centre Number Candidate Number Name CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education PHYSICS Paper 3 May/June 2003 1 hour 15 minutes Candidates answer on the Question Paper. No Additional Materials are required. 0625/03 READ THESE INSTRUCTIONS FIRST Write your Centre number, candidate number and name on all the work you hand in. Write in dark blue or black pen in the spaces provided on the Question Paper. You may use a soft pencil for any diagrams, graphs or rough working. Do not use staples, paper clips, highlighters, glue or correction fluid. Answer all questions. The number of marks is given in brackets [ ] at the end of each question or part question. For Examiner’s Use 1 2 3 4 5 6 7 If you have been given a label, look at the details. If any details are incorrect or missing, please fill in your correct details in the space given at the top of this page. Stick your personal label here, if provided. 8 9 10 11 Total This document consists of 12 printed pages. SP (AT/KN) S46413/2 © CIE 2003 [Turn over 2 1 Fig. 1.1 shows apparatus that may be used to compare the strengths of two springs of the same size, but made from different materials. For Examiner’s Use spring scale masses Fig. 1.1 (a) (i) Explain how the masses produce a force to stretch the spring. ................................................................................................................................... (ii) Explain...
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...from magnetic north when the electric current from the battery he was using switched on and off. This deflection convinced him that magnetic fields radiate from all sides of wire carrying an electric current, just as light and heat do, and that it confirmed a direct relationship between electricity and magnetism. He published his findings, proving that an electric current produces a magnetic field as it flows through a wire. The CGS unit of magnetic induction is named in honor of his contributions to the field of electromagnetism. The magnetic field encircles this straight piece of current- carrying wire, the magnetic flux lines having no definite “north” or “south” poles. While the magnetic field surrounding a current- carrying wire is indeed interesting, it is quiet weak for common amounts of current, able to deflect a compass needle and not much more. To create a stronger magnetic field force (and consequently, more field flux) with the same amount of electric current, we can wrap the wire into a coil shape, where the circling magnetic fields around the wire will join to create a larger field with a definitemagnetic (north and south) polarity; the amount of magnetic field force generated by a coiled wire is proportional to the current through the wire multiplied by the number of “turns” or “wraps” of wire in the coil. This field force is called magneto motive force (mmf), and is very much analogous to electromotive force (E) in an electric circuit. ...
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...EEL201 Term Paper: Serial Communication Over Parallel 1 Serial Communication Over Parallel Sachin Garg Indian Institute of Technology, Delhi-110016 E-mail: ee2110527@ee.iitd.ac.in Abstract—Communication is the essence of today’s technologically advanced world. The two most basic methods of digital communication are: Serial and Parallel. Parallel communication involves multiple wires running parallel to each other and can transmit data on all the wires simultaneously. However, Serial communication requires a single wire for transferring data bits one at a time. A natural question arises out of human curiosity: which one of the two methods is better. This term paper discusses these two methods, their various applications and the advantages of the Serial Communication method over the Parallel one. Index Terms—Parallel Communication, Serial Communication UART, RS-232 DTE, Synchronous, Asynchronous. Parallel counterpart have been resolved. Although the Parallel Transmission Method is still used within internal buses and for devices such as printers, but the latest devices, ports and technologies are mostly based on Serial Techniques. For example - Universal Serial Bus and WAN, both make use of the Serial Type Data Transmission. II. TERMS USED IN DATA COMMUNICATION A. Transmission Distance The transmission distance of a communication signal is the length of path the signal travels as it goes from transmitter to the receiver. B. Data Terminal Equipment (DTE) Data Terminal...
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