Name _______________________________________ MIE Introduction to Materials‚ Fall ‘08 Exam #2 Answer all 5 Questions (Please keep your writing neat‚ use full sentences‚ and make the writing large enough so that it can be read.) Problem #1 a) Describe the difference between the substitutional and the interstitial mechanism for mass transport - diffusion in metals. b) Do these two mechanisms control mass transport – diffusion in 1) ceramics and 2) polymers? Explain your answers.
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Engineering Materials Week 2 3.1 What is the difference between atomic structure and crystal structure? Atomic structure relates to the number of protons and neutrons in the nucleus of an atom. Crystal structure pertains to the arrangement of atoms in the crystalline solid material. 3.9 Calculate the radius of a tantalum atom‚ given that Ta has an BCC crystal structure‚ a density of 16.6 g/cm^3‚ and an atomic weight of 180.9 g/mol. For BCC n=2 atoms/unit cell 3.47 Below are shown three different
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The different genetic variation between plants and animals Aim: to see the similarities between the different breed in a species Genetic variation is what allows natural section and more importantly new alleles (a number of alternate forms of the genetic pool) to enter the population. By having different genetic combinations‚ those of a population reveal different traits which may or may not be to their benefit‚ in respects to their social and environmental interactions or surroundings. Because
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Cayla Grossman-Orr Forensics 2 Text Questions Unit 2 Review Questions 1. What is a questioned document? Describe at least one example of something that might be a questioned document. A questioned document is any written or typed document that’s authenticity has been brought into question. A question document could be a will‚ drivers license‚ check‚ or painting that is suspected of being forged. 2. What is an exemplar? What are the best types of exemplars? An exemplar is an sample
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and develop systems that promote communication The aim of this chapter is to assess the level of knowledge‚ understanding and skills required to develop communication systems for meeting individual outcomes and promoting partnership working. The chapter explores the challenges and barriers to communication and the importance of effective management of information. By the end of this chapter you will: 1 Be able to address the range of communication requirements in your own role 2 Be able to improve
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be installed on one computer and can be accessed by other users in a network. By this the need of installing printers on individual computers is avoided and it result in cost-effectiveness. Computer network also allows the user to communicate with each other using instant messaging tools to share ideas‚ files or solve queries. In Business‚ according to itworkers-alliance.com‚ the basic need of for most computers to interact in a business is to share files. It’s true this can be done with
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Supplemental Nutrition Assistance Program and Their Effects on American FamiliesLone Star College Systems Abstract The Supplemental Nutrition Assistance Program (SNAP) has help put food on the tables of American families. Food stamps are a Department of Agriculture (USDA) program for low income families covering most foods‚ although not hot prepared meals or alcohol. This paper is intended to show how and why this program works. Democrats (Liberals) and Republicans (Conservatives) have substantial
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What is a knowledge-based system? A system which is built around a knowledge base. i.e. a collection of knowledge‚ taken from a human‚ and stored in such a way that the system can reason with it. Example: System: What is the patient’s name? User: George Smith System: What is the patient’s age? User: 52 years System: Is the patient male or female? User: Male System: What are the symptoms? User: Headache dizziness upset stomach high fever System: When did these symptoms first appear? User:
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Chapter 2 Questions MBA: 1) Identify and discuss the major types of information systems that serve the main management groups within a business. What are the relationships among these systems? Main management groups within a business are operational management (employees‚ staff)‚ middle management and senior‚ top-management. Accordingly there are three major types of information systems – transaction processing system (TPS)‚ management information systems (MIS) and decision-support system (DSS)
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Research Assignment Objective: To develop biometric based attendance system for STM at different campuses based in Central London. Purpose: To provide accurate and efficient attendance recording system to keep track of students and provide attendance reports to home office. Scope: ▪ To conduct some research into different biometric devices. ▪ To acquire biometric finger print scanner devices ( terminals) ▪ To design and develop the network infrastructure to link the devices to the
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