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230 articles for “ROC”
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Research ArticleOpen accessIn the abstractRemoving Boron from an Aqueous Solution Using Turmeric Extract-Aided Coagulation-FlocculationAzhar Abdul Halim, Nur Hanani Thaldiri, Normah Awang, Mohd Talib LatifProblem statement: Boron exists in an environment naturally either through weathering of rocks or volcanic activity but due to anthropogenic activity, boron had been distributed widely into our surroundings. Boron was a problematic pollutant due to the difficulty to remove it from the water. Turmeric which had been widely used as a spice and traditional medicine, were investigated to determine … …American Journal of Environmental Sciences, Vol. 8, Issue 3 · 15 Jun 2012 · 8,329 accessesView PDFCite
Research ArticleOpen accessIn the abstractTunnel Static Behavior Assessed by a Probabilistic Approach to the Back-AnalysisClaudio Oggeri, Pierpaolo OresteProblem statement: The steps of the validation procedure of the project of a tunnel are briefly illustrated in this study, starting from the geological and structural surveys on the excavation walls and the measurement of the physical and mechanical parameters during the excavation works. Unfortunately, however, the knowledge of the rock mass, which is fundamental to the project, is usually … …American Journal of Applied Sciences, Vol. 9, Issue 7 · 4 Jun 2012 · 7,030 accessesView PDFCite
Research ArticleOpen accessIn the abstractGroundwater Flow Systems and Their Response to Climate Change: A Need for a Water-System View ApproachJoel J. Carrillo-Rivera, Antonio CardonaProblem statement: The interest in early hydrogeological studies was the aquifer unit, as it is the physical media that stores and permits groundwater transfers from the recharge zone to the discharge zone, making groundwater available to boreholes for water extraction. Approach: Recently, the aquifer concept has been complemented by the groundwater flow system theory, where groundwater may be defined by … …American Journal of Environmental Sciences, Vol. 8, Issue 3 · 7 Apr 2012 · 8,077 accessesView PDFCite
Research ArticleOpen accessIn the abstractMetals in Sediment Cores from Nine Coastal Lagoons in Central VietnamStefania Romano, Cristian Mugnai, Silvia Giuliani et al.Problem statement: After being dramatically hit by war events, Vietnam is presently experiencing a huge economical and social development. However, very few data, relative to pollution levels and trends, are available for the correct management of critical areas such as coastal lagoons, where many economical activities are linked to high value environmental features. Approach: A set of sediment cores from … …American Journal of Environmental Sciences, Vol. 8, Issue 2 · 9 Mar 2012 · 8,587 accessesView PDFCite
Research ArticleOpen accessIn the abstractBacteria on Human SkinRichard W. Hyman, Farbod Babrzadeh, Curtis Palm et al.Problem statement: Human skin is a large (~ 1.75 m2) organ containing a large number of ecologically distinct sites. These sites harbor a variety of distinct microbiomes. One challenge is to define the microbiome at every site. We chose two interesting sites: the base of the Front of the neck and the base of the Back of the neck (the … …Current Research in Microbiology, Vol. 2, Issue 2 · 23 Feb 2012 · 8,204 accessesView PDFCite
Research ArticleOpen accessIn the abstractX-Ray Diffraction and X-Ray Fluorescent Analyses of Prehistoric Pottery Shards from Ulu KelantanZuliskandar Ramli, Nik Hassan Shuhaimi Nik Abdul Rahman, Adnan Jusoh, Yunus SaumanProblem statement: X-Ray Diffraction (XRD) and X-Ray Fluorescent (XRF) were used in order to obtain mineralogical and elemental composition of seven pottery shards that have been unearthed during the excavation at Peraling Cave and Cha Cave in Ulu Kelantan, Malaysia. Approach: Peraling Cave and Cha Cave were prehistoric sites dating from 10, 000 BC which were inhabited by Hoabinhian people … …American Journal of Applied Sciences, Vol. 8, Issue 12 · 20 Oct 2011 · 7,751 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Review of Static Tests and Recent StudiesSrilert ChotpantaratProblem statement: Acid mine drainage from waste rocks, tailings and other mine components, is one of the most important environmental concerns at mining sites. To attempt to determine the balance between the acid and neutralization potentials of the material and evaluate the possible acid-forming potential of mine waste, many static prediction tests have been developed to evaluate the acid-forming potentials … …American Journal of Applied Sciences, Vol. 8, Issue 4 · 19 Apr 2011 · 7,658 accessesView PDFCite
Research ArticleOpen accessIn the abstractHydrogeological Prognosis with Regard to Realisation of the New Colle Di Tenda Road TunnelCinzia Banzato, Massimo Vincenzo Civita, Adriano Fiorucci et al.Problem statement: The doubling of Tenda pass road tunnel jointing SW France to Piedmont (Italy) was planned to penetrate a complicate rock structure in which several complex play an hydrogeologic role including carbonate-Karst aquifer between flysch impervious complexes. The main problem of the project is the presence of an hydraulic circulation feeding a spring of social and economic great importance … …American Journal of Environmental Sciences, Vol. 7, Issue 1 · 28 Feb 2011 · 7,363 accessesView PDFCite
Research ArticleOpen accessIn the abstractComposition-Explicit Distillation Curves of Waste Lubricant Oils and Resourced Crude Oil: A Diagnostic for Re-Refining and EvaluationLisa Starkey Ott, Beverly L. Smith, Thomas J. BrunoProblem statement: We have recently introduced several important improvements in the measurement of distillation curves for complex fluids. The modifications include a composition-explicit data channel for each distillate fraction and temperature measurements that are true thermodynamic state points that can be modeled with an equation of state. The composition-explicit information is achieved with a sampling approach that allows precise qualitative … …American Journal of Environmental Sciences, Vol. 6, Issue 6 · 31 Dec 2010 · 8,101 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Monitoring System for Mitigation Planning: The Case of "Bagnaschino" Landslide in Northern ItalyGiuliani Andrea, Bonetto Sabrina, Castagna Sara et al.Problem statement: The Bagnaschino landslide occurred in November 1994 that caused extensive floods and many landslides all over northern Italy. In southern Piedmont, the Casotto River (Cuneo Province) damaged many kilometers of provincial road and the river was dammed by this landslide. The landslide involves an area of about 100 thousands m3, but a good knowledge of the landslide is … …American Journal of Environmental Sciences, Vol. 6, Issue 6 · 31 Dec 2010 · 7,191 accessesView PDFCite