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123 articles for “arabia”
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Research ArticleOpen accessIn the abstractToxicological Response of the Green Alga Chlorella vulgaris, to Some Heavy MetalsE. Afkar, H. Ababna, A. A. FathiProblems statement: The disturbance of aquatic ecosystems provoked by heavy metals pollution from industrial and domestic sources, has as consequence the loss of biological diversity, as well as increased bioaccumulation and magnification of toxicants in the food chain. The aim of this study was to evaluate the effect of some heavy metals on some physiological activities of Chlorella vulgaris beyerinck … …American Journal of Environmental Sciences, Vol. 6, Issue 3 · 30 Jun 2010 · 10,787 accessesView PDFCite
Research ArticleOpen accessIn the abstractFade Margin Analysis Due to Duststorm Based on Visibility Data Measured in a DesertMd. Rafiqul Islam, Zain Elabdin Elshaikh, Othman O. Khalifa et al.Problem statement: The fade margin analysis of microwave propagation in areas affected by duststorm had been presented in this study. Approach: Based on long term duststorm data recorded in Riyadh-Saudi Arabia, the fade margin due to duststorm effects estimated. Results: The fade margin due to duststorm then derived under various water contents during the storm. Conclusion/Recommendations: It was particularly shown … …American Journal of Applied Sciences, Vol. 7, Issue 4 · 30 Apr 2010 · 7,679 accessesView PDFCite
Research ArticleOpen accessIn the abstractSuitability of Using Phragmites australis and Tamarix aphylla as Vegetation Filters in Industrial AreasWafa’a A. Al-TaisanProblem Statement: Many soils of different areas of the world are subjected to heavy metal pollution due to human activities especially the industry. These metals are hazardous to human health and could affect ecosystems. Toxic metal pollution in water and soil is a major environmental problem and most conventional remediation approaches do not provide acceptable solution, hence the studies of … …American Journal of Environmental Sciences, Vol. 5, Issue 6 · 31 Dec 2009 · 8,450 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Multicultural Comparison of Engineering Students: Implications to Teaching and LearningZaki Shkair Seddigi, Luiz Fernando Capretz, David HouseProblem statement: Personality considerations have become increasingly important in recent years, but studies involving the personality characteristics of engineers have been scarcely reported. Engineers today are expected to have a broader range of skills than in the recent past because users are now equally concerned with the technical as well as the personal services provided by engineers. Approach: A multicultural … …Journal of Social Sciences, Vol. 5, Issue 2 · 30 Jun 2009 · 8,317 accessesView PDFCite
Research ArticleOpen accessIn the abstractUsing GIS for Retail Planning in Jeddah CityAbdulkader A MuradThe aim of this paper was to identify the possibilities of using Geographical Information Systems (GIS) in retail planning field. A spatial database was created for one major retail center called Cornaish center in Jeddah city, Saudi Arabia. The results of the GIS analysis covers three retail planning issues called Proximity to retail center, retail demand characteristics and spatial interaction … …American Journal of Applied Sciences, Vol. 4, Issue 10 · 31 Oct 2007 · 6,860 accessesView PDFCite
Research ArticleOpen accessIn the abstractPhotovoltaic Technology of Electricity Generation for Desert CampingShafiqur Rehman, Ali A. Shash, Omar S. Baghabra Al-AmoudiThis study presents a case study on the utilization of global solar radiation data on horizontal surface to perform economical feasibility of using Photovoltaic (PV) panels with battery backup to meet a small load for a camping site in Saudi Arabia. The analysis considers three scenarios with daily average energy demands of: (i) full load, (ii) 75% load and (iii) … …American Journal of Environmental Sciences, Vol. 1, Issue 1 · 31 Mar 2005 · 6,929 accessesView PDFCite
Research ArticleOpen accessIn the abstractWind Speed Simulation Using WaveletsA. H. Siddiqi, S. Khan, S. RehmanMost of the renewable energy sources have direct or indirect link with the sun. Wind is also a form of solar energy. It is initiated by uneven heating of the atmospheric air by the sun, affected from the topography and surface roughness of the earth's surface and rotation of the earth. The earth's terrain, water surfaces and vegetation cover modifies … …American Journal of Applied Sciences, Vol. 2, Issue 2 · 28 Feb 2005 · 7,553 accessesView PDFCite
Research ArticleOpen accessIn the abstractImproving the Traffic Flow in Hot Arid Climate Areas by Implementing a Monorail Light Rail Transit System: Case of KuwaitTaha Ahmed, Mohamed Salem, Ahmad Saad, Abdel Rahman AlaqqadThis study investigated the viability of establishing a monorail network system in Kuwait as an additional means of transportation to the current transportation systems. Two critical areas with high traffic demands were identified through the collected traffic data at the major intersections in these areas., These areas were Kuwait City (near the ministries area) and Al-Blajat street (known as the … …American Journal of Engineering and Applied Sciences, Vol. 14, Issue 1 · 24 Jan 2021 · 7,064 accessesView PDFCite
Research ArticleOpen accessIn the abstractCould Geometry Demystify Patterns of Earth Quakes and Aftershocks? An Answer is YesRamalingam ShanmugamIn this article, a pioneering (geometric) approach based on a new what is named here Glued Bivariate Poisson (GBP) distribution is constructed to demystify the 21st century incidences of earthquakes and their aftershocks. A warning risk index for an earthquake or an aftershock to occur is formulated and computed for each of the thirteen major tectonic plates. This article reports … …Current Research in Geoscience, Vol. 6, Issue 1 · 30 Apr 2016 · 7,658 accessesView PDFCite
Research ArticleOpen accessIn the abstractANTIFUNGAL EFFECT OF ETHANOL PLANT EXTRACT ON CANDIDA SPAwatif Al-Judaibi, Fozia Al-YousefIn this study, we investigated the in-vitro antimicrobial activity of some medicinal plants in the Arabian peninsula, including Rhamnus globosa, Ocimum basilicum, Tecoma stans and Coleus forskohlii. Our results showed high inhibitory growth in yeast after treatment with R. globosa and O. basilicum. C. tropicalis was shown to be a sensitive strain with an inhibition of 29, 28, 35, 25 … …American Journal of Agricultural and Biological Sciences, Vol. 9, Issue 3 · 11 Mar 2014 · 8,022 accessesView PDFCite