Research ArticleOpen accessIn the abstractAn Applied Study on the Debris Recycling in TunnellingPierpaolo Oreste, Marta CastellanoProblem statement: A simple calculation has shown what the impact of muck created during the construction of a hypothetical 50 km long and 100 m2 cross section tunnel could be on the environment: around 8 million cubic meters would have to be discharged as waste material. One solution to such a problem could be to recycle (almost a part) the … …American Journal of Environmental Sciences, Vol. 8, Issue 2 · 27 Mar 2012 · 7,518 accessesView PDFCite
Research ArticleOpen accessIn the abstractGroundwater Dynamics and Quality Assessment in an Agricultural AreaStefano Lo Russo, Adriano Fiorucci, Bartolomeo VignaProblem statement: The analysis of the relationships among the different hydrogeological Units and the assessment of groundwater quality are fundamental to adopt suitable territorial planning measures aimed to reduce the potential groundwater pollution especially in agricultural regions. In this study, the characteristics of groundwater dynamics and the assessment of its quality in the Cuneo Plain (NW Italy) were examined. Approach: … …American Journal of Environmental Sciences, Vol. 7, Issue 4 · 29 Sep 2011 · 7,367 accessesView PDFCite
Research ArticleOpen accessIn the abstractNumerical Modeling of Flow in a Horizontal Sand FilterRuth Mossad, Hal AralProblem statement: Horizontal sand filters may offer some advantage over vertical sand filters as they could be used for in-line treatment of wastewaters. Horizontal pipelines of tens and if not hundreds of meters length, filled with ordinary sand or permeable reactive media such as activated carbon or natural zeolite or iron filings, may be used to remove impurities from mine … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 2 · 30 Jun 2010 · 7,502 accessesView PDFCite
Research ArticleOpen accessIn the abstractWireless Communication with a Microprocessor Based Ultrasonic Meter for Flow MeasurementsMahmoud Z. IskandaraniProblem statement: Although the traditional metering system and method for controlling flow is generally safe, reliable and robust, it does suffer certain drawbacks, such as limited accuracy and the ability to implement complex reactive rate designs. Hence, there is a need for a circuit and method of increasing metering accuracy, as well as the position control accuracy for variable flow … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 4 · 31 Dec 2009 · 7,584 accessesView PDFCite
Research ArticleOpen accessIn the abstractAdsorption of Methylene Blue from Aqueous Solution onto a Low-Cost Natural Jordanian TripoliAtef S. ALzaydienProblem statement: It is well documented that lead is one of contaminants of industrial wastewaters and its pollution exists in the wastewater of many industries. As a result, recent research has focused on the development of cost effective alternatives using various natural sources and industrial wastes. In this setting, the use of low-cost agricultural materials, waste and residues for recovering … …American Journal of Applied Sciences, Vol. 6, Issue 6 · 30 Jun 2009 · 7,945 accessesView PDFCite
Research ArticleOpen accessIn the abstractEstimating Snow Budget of Karaj Dam ReservoirManijeh Ghahroudi Tali, Bohloul Alijani, Reza SarvatiProblem statement: Most of the cold period precipitation of Karaj Basin falls in the form of snow. This snow and its run off are important to the dam and the local needs such as agriculture and the drinking water of Tehran. But due to the scarcity and in some elevations the lack of weather stations, measuring this snow cover and … …American Journal of Applied Sciences, Vol. 6, Issue 5 · 31 May 2009 · 7,515 accessesView PDFCite
Research ArticleOpen accessIn the abstractThermal Energy Storage in the Ground of a Greenhouse by the Polypropylene Capillary Heat ExchangerM. Lazâar, S. Koôli, M. Hazami et al.The problem of temperature inversion is one of solar origin principal problems about which the cultures under shelters complain. Indeed, for the winter period, the temperature under greenhouse is very low at night and it is rather high during the day in summer. Consequently, the heating of the greenhouses is essential. In this work, we studied the advisability of using … …American Journal of Applied Sciences, Vol. 5, Issue 12 · 31 Dec 2008 · 6,939 accessesView PDFCite
Research ArticleOpen accessIn the abstractA New Method for Optimal Harmonic Meter PlacementA. Ketabi, S.A. HosseiniIn this research, a new method based on Singular Value Decomposition (SVD) is proposed to solve the problem of optimal placement of meters for static estimation of harmonic sources in a power system. Also, the Binary Genetic Algorithm (BGA) is used to solve the problem of optimization. IEEE 14-bus test system is provided to validate the measurement placement algorithm. It … …American Journal of Applied Sciences, Vol. 5, Issue 11 · 30 Nov 2008 · 7,182 accessesView PDFCite
Research ArticleOpen accessIn the abstractComparison of Twelve Dielectric Moisture Probes for Soil Water Measurement under Saline ConditionsM. Inoue, B.A. Ould Ahmed, T. Saito, M. IrshadRecently the research on the determination of soil water content and electrical conductivity using automated technique has received tremendous attention. Selecting the type of system that should be used for soil water measurement under saline conditions depends on its precision. A laboratory study was carried out to measure the soil water content (θ) and soil solution electrical conductivity (ECw) using … …American Journal of Environmental Sciences, Vol. 4, Issue 4 · 31 Aug 2008 · 7,450 accessesView PDFCite
Research ArticleOpen accessIn the abstractAn Applied Research Program on Water Desalination with Renewable EnergiesSergio M. Alcocer, Gerardo HiriartThe use of renewable energy for desalination might be quite different in many places of the world. In Mexico, specifically in Baja California, there is an abundance of "traditional" renewable resources like sun and wind but also some others like hot springs at the coast, tidal currents and tidal amplitudes of over six meters in the upper part of the … …American Journal of Environmental Sciences, Vol. 4, Issue 3 · 30 Jun 2008 · 7,203 accessesView PDFCite