Environmental and economic life cycle assessment of aluminum-silicon alloys production: a case study in China. Authors: Hong‚ Jingmin1‚2 Zhou‚ Jing2 Hong‚ Jinglan3 hongjing@sdu.edu.cn Xu‚ Xu3 Source: Journal of Cleaner Production; Mar2012‚ Vol. 24‚ p11-19‚ 9p Document Type: Article Subject Terms: *ALUMINUM-silver alloys *PRODUCTION (Economic theory) *ECONOMIC impact *CASE study (Research) *DEMAND (Economic theory) *RAW materials *CONSUMPTION (Economics) Geographic Terms: CHINA
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AT&T and Verizon are two very big growth industries in the telecommunications field. They have been around for a very long time providing the best equipment along with accessories and cellphone data and services. Also these two industries provide the best cellular tower coverages across the USA. They do compete against each other in a sense with thoughts in the past that have been the talk in the media about these two industries emerging‚ but instill by themselves they both have adopted some very
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Institute of Physics‚ November 14‚ 2006 In the past decade there have been many innovations and product introductions in the mobile electronic gadgets. These mobile products are popular since many types of wireless services such as cellular and internets are available which gives the consumer the flexibility of working while they are away from the physical resources. World is going wireless but you need a physical power source as after some time as no in-built battery can keep the electronic
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Anthony E. Joven Address: Brgy.Washington Roxas Ext. S.C. Mobile Number: 09203053769 PERSONAL DATA Birthday: Nov. 20‚ 1991 Age: 21 Address: Brgy.Washington Roxas Ext. S.C. Civil Status: Single Sex: Male EDUCATIONAL BACKGROUND Course: Bachelor of Science in Industrial Technology College: Surigao State College of Technology Date Graduate: March 23‚ 2013 Secondary:Alegria Nationa High School Date
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Chapter 3 Mobile Radio Propagation: Large-Scale Path Loss 1. (a) Explain the advantages and disadvantages of the 2-ray ground reflection model in the analysis of path loss. (b) What insight does the 2-ray model provide about large-scale path loss that was disregarded when cellular systems used very large cells? 2 .In a 2-ray ground reflected model‚ assume that must be kept below 6.261 radians for phase cancellation reasons. Assuming a receiver height of 2 m‚ and given a requirement that be less
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We have chosen minicase Hertz goes Wireless from chapter seven which describes how information systems provided to employees facilities by wireless technology Which improves their performance and productivity. INTRODUCTION In a competitive world‚ Hertz is a company that rents cars. It is the world´s largest enterprise and competes against thousands of companies in hundreds of countries. Hertz is operating approximately in 8‚100 in 145 countries worldwide. Its goal is to pay attention on customer
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1. Introduction Recent technological improvements have made the deployment of small‚ inexpensive‚ low-power‚ distributed devices‚ which are capable of local processing and wireless communication‚ a reality. Such nodes are called as sensor nodes. Each sensor node is capable of only a limited amount of processing. But when coordinated with the information from a large number of other nodes‚ they have the ability to measure a given physical environment in great detail. Thus‚ a sensor network can
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Wireless network refers to any type of computer network that uses wireless (usually‚ but not always radio waves) for network connections. It is a method by which homes‚ telecommunications networks and enterprise (business) installations avoid the costly process of introducing cables into a building‚ or as a connection between various equipment locations.[1] Wireless telecommunications networks are generally implemented and administered using radio communication. This implementation takes place
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Wireless Network Security Partha Dasgupta and Tom Boyd Dept. of Computer Science and Engineering Fulton School of Engineering Arizona State University partha@asu.edu‚ tboyd@asu.edu Abstract Wireless networking is inherently insecure. From jamming to eavesdropping‚ from man-inthe middle to spoofing‚ there are a variety of attack methods that can be used against the users of wireless networks. Modern wireless data networks use a variety of cryptographic techniques such as encryption and authentication
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survival in the tough and competitive market make it possible for many businesses and companies to reach their employees‚ other partner markets or businesses and even their customers while on the move. This is the gift of wireless devices and applications technology. Wireless devices and applications (WDA) are used by many organizations in their various operations because it has many benefits. First‚ it is cost effective- the amount that a company would spend in order to disseminate information
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