Abstract: Achieving excellent network quality of service (QoS) is the fundamental aim of any internet service provider (ISP), in view of this, a model of a corporate network has been developed, simulated and implemented using optimized network engineering tool (OPNET) technology in the simulation area of 10,000m2 office topology, to monitor the effect of data delay in a network based on the input characteristics; 50, 100, 150 and 200 host users to predict the network performance. The result shows that the network with the less number of host users has the better network performance, which implies that; the more the number of the host users the higher the data delay. The data delay predicted in the network with 50, 100, 150 and 200 host users are 0.004801/s, 0.006826/s, 0.006969/s and 0.019697/s respectively. The modeling result predicts that the input characteristics have an influence over network performance as well as capacity utilization.

• Publication Date: 02-Jun-2014
• DOI: 10.15224/978-1-63248-010-1-111
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Abstract: For effective preservation of environment and required protection of groundwater, the Municipality of the Holy Capital (Makkah), Kingdom of Saudi Arabia plans to appropriately and properly close the old landfill at Muassim area in Makkah with a particular synthetic cover layer that prevents rainwater from reaching the very inside of the landfill and mixing up with its components. This affects subsequently the quality of the groundwater in the nearby valleys (Wadis). Furthermore, for safeguarding the air environment, the said Municipality intends to construct a network for the collection of gases and considering the possibility of making use of it in energy production. This paper comprises the results of the quality of both underground water and atmosphere near Muassim Landfill

• Publication Date: 02-Jun-2014
• DOI: 10.15224/978-1-63248-012-5-60
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