Donner Company. Yan Anantakusumo Yudistiawan Septima Nurlailia Rizki Setyo P Company History Donner Company‚ started in 1985‚ manufactures printed circuit boards‚ technically called as “soldermask overbare copper” boards It faces a competition from around 750 manufacturers in United States. The firm has developed new processes and application and holds patents for these. Process Order Whenever an order was received‚ price was quoted based on estimations of labor
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Alps it was suggested that he was a Shepard or a hunter as he carried weapons with him * In samples taken of Otzi ’s hair‚ high levels of copper particles and arsenic were found. Scientists thought that he may have been involved in copper smelting possibly as part of his living. The copper axe that Otzi was found with was composed of 99.7 % pure copper. HOW DID OTZI DIE? When scientists were analysing new X-rays‚ they noticed a foreign item lodged in Otzi ’s left shoulder. Detailed investigations
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Colegio De San Juan De Letran-Calamba Bucal‚ Calamba City Industrial Materials and Processes Laboratory IE081L “Electrical Joints and Splices” Department 4: Manalo‚ Maria Isabel E. Rivera‚ Rachel Ann G. Berbano‚ Roy Emilino M. Rodriguez‚ Paul Andrew Trinos‚ Searle Submitted to: Engr. Gilda A. Aquino 1. Objective: To have knowledge and experience on how to Jointing and Splicing a Electrical Wire Gauge. To know the importance
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MANUAL DESIGN OF MULTIPLE-PIPE SLUG CATCHERS DEP 31.40.10.12-Gen. July 1998 DESIGN AND ENGINEERING PRACTICE This document is confidential. Neither the whole nor any part of this document may be disclosed to any third party without the prior written consent of Shell International Oil Products B.V. and Shell International Exploration and Production B.V.‚ The Hague‚ The Netherlands. The copyright of this document is vested in these companies. All rights reserved. Neither the whole nor any part of
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Strength of an electromagnet AIM The aim of this experiment is to investigate how the strength of an electromagnet is affected by the size of the current flowing through its coils. YOU WILL NEED A large (15cm long) iron nail A metre of insulated copper wire 6 metal paper clips A power supply (0-6V dc) An ammeter (0-5A) Connecting leads with 4mm plugs WHAT TO DO Strip off about 5 cm of the insulation from each end of the wire. Set up the apparatus as shown in the diagram. Switch on the power
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a banana slug Banana slugs are often bright yellow (giving rise to the banana sobriquet) although they may also be greenish‚ brown‚ tan‚ or white. The species Ariolimax columbianus sometimes has black spots that are so extensive that the animal looks almost entirely black. Individual slugs will change colors with alterations in food consumption‚ light exposure‚ and moisture levels. Color may also indicate whether a slug is healthy or injured or what age it is.[4] The Pacific banana slug is the second-largest
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provided to you. Section A 1. 2. 3. 4. 5. 6. 7. 8. Write the chemical formula for the following: (a) Calcium Fluoride (b) Iron (II) Bromide Name to kinds of cells (elements) of xylem. Two wires‚ one of manganin and the other of copper have equal lengths and resistances. Which one of these wires will be thicker? What does ‘slaking of lime’ stand for? Why is there a hissing sound during this process? Write the chemical equation for the reaction involved. What is autonomic nervous
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a. 1000Hz b. 800Hz 2. Resistance design criteria – refer to current and resistance drops in the line. Also known as signaling limit. Basic Resistance Design Basic resistance of a single rounded wire express as: R= ρLA For rounded copper wire: A= π4d2 The dc resistance is equated as: Rdc=
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Data and Observations: Part I Table: Metal: | Aluminum | Zinc | Iron | Copper | Mass of metal: | 27.776 g | 41.664 g | 34.720 g | 41.664 g | Volume of water in the calorimeter: | 26.0 mL | 26.0 mL | 26.0 mL | 26.0 mL | Initial temperature of water in calorimeter: | 25.3 °C | 25.3 °C | 25.3 °C | 25.3 °C | Temperature of hot water and metal in hot water bath: | 100.5 °C | 100.5 °C | 100.5 °C | 100.5 °C | Final temperature reached in the calorimeter: | 38.9 °C | 34.8 °C | 34.2 °C | 34
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Sugar (Sucrose)- C12H22O11 Vitamin C (Ascorbic Acid)- C6H8O6 Aspirin (Acetylsalicylic Acid)- C9H8O4 Common Name | Chemical Name | acetone | dimethyl ketone; 2-propanone (usually known as acetone) | acid potassium sulfate | potassium bisulfate - used in the conversion of tartrates to bitartrates in wine. | acid of sugar | oxalic acid – used in cleaning or bleaching‚ especially for the removal of rust (iron complexing agent) | ackey | nitric acid | alcali volatil | ammonium
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