The presence of internal debris in gas transmission pipelines reduces flow efficiency, threatens pipeline integrity and undermines the quality of the delivered product. Precise planning is crucial for effective pipeline cleaning. Our aim is to optimize the cleaning operations by assessing pipeline cleanliness and estimating the optimal time for initiating a cleaning operation. In the initial stages of our research, we have reviewed the origin and characteristics of debris and mapped the different approaches of facing the cleanliness problem currently in use. Potential routes for an optimized, holistic solution to the problem are here proposed. Our findings will be presented and discussed.
The camel is steeped the United Arab Emirates (UAE) history. As such, the camel holds both a social and an economic status in the culture of the UAE people. Recently, there has been increased interest in the camel as a source of biorenewable products to supplement the current petroleum based energy and chemical sources. Initial work in the lab supports the hypothesis that camel gut microbes decompose biomass into desired high value chemicals. To study this further, we have designed and built the first artificial camel gut system. This system will allow for us to study these microbes in a controlled environment, looking at which carbon sources work best for the production of valuable chemicals. Our goal is to provide a regular supply of renewable energy molecules and chemicals derived from a mix of organic household waste and agricultural waste to help the UAE become more sustainable.
The subject of energy conservation in buildings has become one of the most important threads at the present time. Using effective and cheap thermal insulators in domestic and industrial constructions can be categorized as a means of reducing energy losses. In this study, focus was made on the formulation and development of polymer-filler composite as an insulating material using local natural Emiratie shall as a filler. Unstaurated polyester resin was blended with the filler with a given polymer/filler ratio and then transformed into solid upon thermo-set process. The solid samples produced were then subjected to different physical, mechanical and chemical tests. The prepared samples showed superier mechanical properties and low values of thermal conductivity. Sandwiching of composite in wall structures by one-third of the total thickness will significantly reduce the overall heat transfer coefficient in building walls and many industrial applications by at least 57%.
INTRODUCTION This research aims to take stock of lessons that have emerged from Police, Civil Defense, Municipal agencies and National Crisis Emergency Management Agency (NCEMA) in the UAE to the Tropical Cyclone Gonu in order to ensure greater success of such disaster management in the future. This study seeks to answer what lessons were learned by Police, Civil Defense, Municipal agencies and NCEMA from the disaster management to the Tropical Cyclone Gonu which struck UAE in 2007?
The US-UAE security bilateral relations have mutually beneficial implications for both of the countries. The US is able to utilize the arrangements to enhance its influence in the Gulf region. Following the 9/11 terrorist attacks which occurred within the US, the country has been highly proactive in the global initiative to combat the terrorist organizations. The most significant advantage for the UAE from the security bilateral arrangements with the US, can be identified as the attainment of the latest military technology and the equipment. The country also attained the strategic support from the US intelligence services and the vast US military basis which have been developed in the region. This study has critically analysed the dynamics of the US-UAE security bilateral arrangements, and its impact on the current and the future national security objectives of UAE.
The Role of Hegemony in the 21st Century: Interacting Liberal Economy
The objective of this dissertation is to conduct a comparative study of two translations of Shakespeare's Macbeth into Arabic to determine the problematic aspects of translating dramatic texts from English into Arabic and attempt to provide solutions to prevailing translation problems. The dissertation will focus on two translations of Shakespeare's Macbeth, into Arabic conducted by Jabra Ibrahim Jabra in 1980, and Salah Niazi in 2007. The two translators have been selected because both of them are well established poets and literary translators. Also, Niazi's translation, comes as an attempt to remedy the errors in Jabra's translation. Al Qinai's (2000) eclectic approach of translation quality assessment will be used to assess the two translations and highlight areas of ambiguities.
The aim of this work is to develop ZnO nanowires and study its electrical and chemical properties for energy harvesting applications. Aqueous chemical growth method (ACG) was used to grow ZnO NWs on polished and non-polished silicon (100) and glass substrates. The X-ray diffractometery measurements shows strong peaks at 2? =34.2 ? of ZnO film of preferred c-axis wurtzite hexagonal (002) orientation. The rms of the films was determined using atomic force microscopy the roughness is estimated to be around 5 nm. The SEM images show a "forest" of ZnO nanowires grown vertically and have lengths up to 2 micrometers and diameters of 20 to 300 nm. The SEM images prove that the role of the seed layer is to enhance the vertical alignment of ZnO NWs. Electrical properties of the NWs will be carried out using Electric Force Microscopy (EFM). Optical properties using Photoluminescence are in progress.
A comparative study between conventionally used transparent conductive oxides and new metal based oxides is undertaken in this work. The optimization of the fabrication process for best electrical and optical properties for the said thin films for optoelectronic applications is the aim. Zinc, Tungsten and Tin metal based oxides are deposited on silicon wafer and glass substrates using RF Magnetron sputtering. The structural, electrical, and optical properties are determined using tools such as: Veeco Detak 150 Profileometer and SEM for thickness measurements and surface imaging. The electrical resistance is measured using a four point probe system, whereas the carrier concentration and Hall mobility are found using Hall Measurement system. The optical transmission measurements are done using "a Lambda 1050 UV-Visible spectrophotometer". The structure and the grain size of the TCO layer is found using XRD. Some depositions of the thin film layers are completed and characterization is in progress.
Recent developments and studies show that concrete has the potential to become a very attractive medium for thermal storage applications due to a relatively high specific heat capacity and thermal conductivity as well as good mechanical properties. The recently performed thermal characterization and testing results show very promising performance and are presented herein.
