Resources‚ Conservation and Recycling 21 (1997) 145–173 Metals recycling: economic and environmental implications Robert U. Ayres * INSEAD‚ Boule6ard de Constance‚ F-77305‚ Fontainebleau‚ France Received 17 July 1997; accepted 27 July 1997 Abstract We are in a period of economic transition. The ‘cowboy economy’ of the past is obsolescent‚ if not obsolete. Environmental services are no longer free goods‚ and this fact is driving major changes. Recycling is the wave of the (immediate) future
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Alkali Metals Introduction Alkali metals refer to six elements belonging to the Group IA of the long form of the Modern Periodic Table‚ viz. Lithium (Li)‚ Sodium (Na)‚ Potassium (K)‚ Rubidium (Rb)‚ Cesium (Cs) and Francium (Fr). Fr is a radioactive element. These elements are called so because they form strongly alkaline oxides and hydroxides. Electronic Configuration of Alkali Metals Each of the alkali metals has one electron in their outermost (valence) shell‚ which is just outside an inert
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EXTRACTION OF METALS SUMMARY Most metals exist in compounds in rocks in the Earth’s crust. Many of these ores contain oxides or sulphides of the metals. The compounds need to be reduced to produce the metals as elements. Metals are very useful to us because of their special properties. Reduction means removal of oxygen or gain of electrons. Carbon is a good chemical reducing agent because it readily combines with oxygen‚ but it is only useful for the metals below it in the Reactivity
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ROOMS DIVISION INFORMATION SHEET 1: I. HOTEL ORGANIZATION The following organizational criteria determine the staffing composition of a hotel: * A hotel’s size classification * A hotel’s location type * A hotel’s product type (service level and target market) A. FUNCTIONAL DEPARTMENTS Most full-service hotels have six main functional departments. Each of these departments will exist‚ in the form or another‚ regardless of location type or product type‚ They include:
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study discusses in detail about the product growth of Attivio Inc. from a software service to a full-fledged product. The study describes the organizational thought process that drove Attivio into a different category of products. It goes into detail about the differences between a vertically aligned product and a horizontally aligned product while keeping in mind the competitive nature of the industry and the economics- pricing paradox that causes havoc for any product. With a brief understanding of
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department. Rooms Division Task A a) A discussion of the key aspects of legislation and regulatory requirements relevant to rooms division operations. Assessment Criteria 1.3 - Discuss legal and statutory requirements that apply to rooms division operations. Room division is an important element of the tourism management. Management of room division ensures good housekeeping and deals with the management of front office and other operational services. Management of room division requires managers
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Corrosion of Metals Introduction Have you ever had a bike that went rusty‚ figure 1? If the paint is scratched and the rust allowed to spread‚ it is very difficult to repair the frame so it looks as good as new again. Rusting costs us millions of pounds each year‚ either through replacing things or through trying to prevent it happening in the first place. Figure 1: Bike rusting. In this booklet you learn about rusting and ways of stopping it‚ followed by a look at another metal‚ aluminium that
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Scrap Metal To Inform To inform my audience that scrap is a commodity often confused with waste. Scrap has monetary value making up one of the largest exports of the United States. Introduction I. Scrap is a $65 billion dollar industry in the United States. The U.S exports $15.7 billion to other countries. II. While this is a global industry it all starts with local entrepreneurs like me. III. Scrap is everything that we throw away that can be recycled and used to make new products. IV
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26 2.3 Metal Forming Valery Marinov‚ Manufacturing Technology SHEET METALWORKING Classification of Sheet Metalworking Processes Basic sheet metalworking operations: (a) bending‚ (b) drawing‚ and (c) shearing; (1) as punch first contacts sheet and (2) after cutting. Force and relative motion are indicated by F and v Cutting Operations Shearing Shearing is a sheet metal cutting operation along a straight line between two cut-ting edges by means of a power shear. Shearing
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Andrea Jung’s Makeover of Avon Products‚ Inc. Problems Avon faces the strong competition within fields they are trying to expand into which is a nutritional product line called Wellness. Any effort to sell products via the Internet and through retail channels has been rejected by the representatives. How can Avon maintain its number one direct seller of beauty and beauty-related products in the future with current industry trends? How can Avon enter the teen line cosmetics and make
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