second disadvantage, many synthetic polymers' most desirable feature is their chemical inertness -- their resistance to various kinds of chemical degradation. This same property, however, also means they last a long time once they are thrown away. According to a 2007 article in Slate, scientists estimate that a single plastic bag could take as much as 500 years to break down. This is heavily related to the factor of environmental, as it is very crude and can break down and destroy earth’s natural environment
important part of energy consumption chart. In developing country, cooking consumes 90% of the domestic energy consumption [3]. In the UAE, the dominant energy sources for cooking are natural gas and electricity. In fact, about 60% of the country’s total natural gas is consumed by generating electricity. The local price of natural
deck. 4. The counterweights in a vertical lift are only required to be equal to the weight of the deck, whereas bascule bridge counterweights must weigh several times as much as the span being lifted. (1.6) ADVANTAGES & LIMITATION OF VERTICAL LIFT MECHANISM ADVANTAGES: 1. An advantage of making bridges moveable is the lower cost, due to the absence of high piers and long approaches. 2. For seldom-used railroad bridges over busy channels, the bridge may be left open and then closed for train
their structural integrity in case of a failure. For example, the cracks in buildings can close on their own or the scratches on car bodies can recover their original shiny appearance by itself. Indeed, this is what everyone can see in case of the natural healing of wounds and cuts in living species. In the case of structural materials the long-time degradation process leads to microcracks that causes a failure. Thus, repairing is indispensable to enhance reliability and lifetime of materials. Definition
GAIL(INDIA) LIMITED GAIL (INDIA) Limited is one of the largest state government owned natural Producing and pipeline distribution company which has its headquarter in New Delhi ,India. It has following business functionalities: Gas Production(Natural),liquid carbon and hydrogen products, liquefied petroleum gas transport ,petrochemicals production city gas distribution, exploring and making gas ,GAIL TELECOM and electricity generation. GAIL has been conferred with Maharatna status on 1st feb 2013
migratory birds should be protected by bilateral and multilateral agreement. (13) The over exploitation of useful products of wild life should be prevented. (14) The useful animals, plants and their wild relatives should be protected both in their natural habitat (in-situ) and in zoological botanical gardens (ex-situ) (15) Efforts should be made for setting up of National parks and wild life sanctuaries to safeguard the genetic diversity and their continuing evolution. (16) Environmental laws should
epidermis, the dermis (corneum) and the hypodermis. The hypodermis is a subcutaneous tissue consisting of fat and muscle and acts as a heat isolator, a shock absorber, and an energy storage region. The dermis is 2 mm thick and contains collagen, elastic fibers, blood vessels, nerves as well as hair follicles and sebaceous and sweat glands (figure 1.1). The main cells in the dermis are fibroblasts, which are involved in the immune and inflammatory response and upon which glucocorticoid receptors are found