Kheng Horng Gan Edwin IS-240.009‚ Disc6 2/23/14 Questions 2 – Evaluate the advantages of the relational database model A relational database model has many advantages such as increase flexibility‚ increase information security‚ increase scalability and performance‚ increase information integrity (quality)‚ and reduce information redundancy. Firstly‚ most of the companies use database because it can handle changes easily and quickly. There are two views used to understand the flexible database
Premium Relational model Database SQL
POTABLE WATER SUPPLY FOR SUSTAINABLE DEVELOPMENT OF NIGERIAN CITIES‚ TOWNS AND URBAN CENTRES – A CASE STUDY OF AUCHI‚ EDO STATE. BY 1 2 3 4 FADELE .S .O.‚ USMAN .D. D.‚ ELAMAH .D.‚ EBUBE .O. C. (1‚2‚3‚ & 4) DEPARTMENT OF BUILDING TECHNOLOGY AUCHI POLYTECHNIC AUCHI EDO STATE ACCESS TO POTABLE WATER SUPPLY FOR
Premium Water Drinking water Hydrology
Title : Water Crisis Introduction : - water always been a natural resource - 80 countries now facing water shortage ‚ 2 billion people lack access to clean water. - global demand for fresh water will vastly outstrip reliable supply in many parts of world. - 97.5% of water is sea water ‚ left 2.5 % of “ fresh water “ but inside include glacier ‚ ice packs ‚ soil moisture ‚ atmosphere ‚ groundwater . Factors driving to this situations : 1. Demographic pressure population growth rate
Premium Water
WATER RESOURCES The sources of water that are useful to human life are called water resources. Uses of water include agricultural‚ industrial‚ household and recreational activities. The majority of human uses require fresh water. 97 percent of the water on the Earth is salt water and only 3 percent is fresh water; slightly over two thirds of this is frozen in glaciers and polar ice caps. The remaining unfrozen fresh water is found mainly as groundwater‚ with only a small fraction present above
Premium Water Hydroelectricity
Uses of water: 1. For drinking and for life processes. On an average‚ a man consumes about 60‚000 to 80‚000 litres of water in his lifetime. The body of an adult contains nearly 40 to 50 litres of water at any given time and water constitutes about 66% of the average body make up. Aqueous solutions fill the cells in the body. Nutrients‚ oxygen‚ and metabolic waste products are transported by blood‚ which is mostly water. Digested food is absorbed in the form of an aqueous solution. In plants too
Premium Water
WATER RESOURCES What are water resources? Water resources are sources of water that are useful or potentially useful to humans. It is important because it is needed for life to exist. Many uses of water include agricultural‚ industrial‚ household‚ recreational and environmental activities. Virtually all of these human uses require fresh water. Only 2.7% of water on the Earth is fresh water‚ and over two thirds of this is frozen in glaciers and polar ice caps‚ leaving only
Premium Water Narmada Bachao Andolan Flood
Date: February 16‚ 2011 To: Professor Koford From: Eric Walters Subject: Fiji Water Case Analysis As requested‚ I have looked at the case study. Below I have included the answers to the questions that you have posed to us. Ethical and Socially responsible Marketing and why marketers should be concerned about CSR and sustainability If a company markets ethically that means they are not just looking at what is legal‚ they are looking at what is morally right. To be socially
Premium Social responsibility Corporate social responsibility Business ethics
Global Fresh Water Shortage Fresh water shortage is a global issue. There are more than one hundred countries face different levels of fresh water shortage‚ and thirty years later there will be 28 to 33 hundred billion people have shortages of water. People lived in fresh water shortage countries cannot even have water to keep them alive. Because of the fresh water shortage‚ people lived near the southern Sahara desert abandoned farmland‚ and 200‚000 people died from that. Africa‚ Asia‚ North American
Premium Water crisis Water Drinking water
Water purification is the process of removing undesirable chemicals‚ biological contaminants‚ suspended solids and gases from contaminated water. The goal is to produce water fit for a specific purpose. Most water is purified for human consumption (drinking water)‚ but water purification may also be designed for a variety of other purposes‚ including meeting the requirements of medical‚ pharmacological‚ chemical and industrial applications. In general the methods used include physical processes such
Premium Water Water purification Drinking water
Research of domestic water consumption: a field study in Harbin‚ China by Tingyi Lu A research project report submitted in partial fulfilment of the requirements for the award of the degree of Master of Science of Loughborough University SEPTEMBER 2007 Supervisor: I.K. Smout BA‚ MSc‚ CEng FICE‚ MIAgrE‚ MCIWEM Water‚ Engineering and Development Centre Department of Civil and Building Engineering Research of domestic water consumption: a field study in Harbin，China 1 Acknowledgement
Premium Water Water resources Water supply