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Research ArticleOpen accessIn the abstractCombined Thermal Radiation and Mixed Convection in an Inclined Circular DuctW. Lakhal, S. Trabelsi, E. Sediki, M. MoussaProblem statement: Modeling thermal radiation with simultaneous buoyancy and forced convection for real gases flowing inside system with complex geometry is a difficult task encountered in engineering applications. Purpose of this study was to research numerically the interaction of mixed convection and thermal radiation in laminar air flow inside an inclined cylindrical duct with Uniform Wall Heat Flux (UWHF). This … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 4 · 31 Dec 2009 · 7,297 accessesView PDFCite
Research ArticleOpen accessIn the abstractTime Series Analysis Model for Rainfall Data in Jordan: Case Study for Using Time Series AnalysisP.E. Naill M. MomaniProblem statement: Time series analysis and forecasting has become a major tool in different applications in hydrology and environmental management fields. Among the most effective approaches for analyzing time series data is the model introduced by Box and Jenkins, ARIMA (Autoregressive Integrated Moving Average). Approach: In this study we used Box-Jenkins methodology to build ARIMA model for monthly rainfall data … …American Journal of Environmental Sciences, Vol. 5, Issue 5 · 31 Oct 2009 · 8,817 accessesView PDFCite
Research ArticleOpen accessIn the abstractAppropriate Technological Development Guidelines for Rubber Plantation for Community Economic Development Using Local Wisdom in Northeastern ThailandPrathip Channuan, Subunn Ieamvijarn, Budsakorn Saenyabud, Prasopsuk RittidetProblem statement: The agriculturists in northeastern Thailand had more rubber plantations. They faced the problem for high investments from using the new technologies. The purposes of the study was to examine appropriate technological development guide lines for rubber plantation for community economic development using local wisdom. Approach: As a qualitative research, documentary and fieldwork were carried out using a survey, … …Journal of Social Sciences, Vol. 5, Issue 3 · 30 Sep 2009 · 7,667 accessesView PDFCite
Research ArticleOpen accessIn the abstractAssessment of Marketing Orientation Concept in Jordanian Service IndustryShaker Ismail, Mustafa Al Shaiekh, Mamdouh Al ZiadatProblem statement: The objective of this study was to explore the extent to which the concept of marketing orientation was clear and adopted by Jordanian service firms, focusing on the financial sector. Approach: Based on an empirical fieldwork. Results: The study concluded that the majority of Jordanian financial service firms had a misconception of marketing orientation concept. They believed that … …Journal of Social Sciences, Vol. 5, Issue 3 · 30 Sep 2009 · 7,937 accessesView PDFCite
Research ArticleOpen accessIn the abstractDigital Recognition using Neural NetworkSaleh Ali K. Al-Omari, Putra Sumari, Sadik A. Al-Taweel, Anas J.A. HusainProblem statement: Handwriting number recognition is a challenging problem researchers had been research into this area for so long especially in the recent years. In our study there are many fields concern with numbers, for example, checks in banks or recognizing numbers in car plates, the subject of digit recognition appears. A system for recognizing isolated digits may be as … …Journal of Computer Science, Vol. 5, Issue 6 · 30 Jun 2009 · 7,665 accessesView PDFCite
Research ArticleOpen accessIn the abstractBasic Theoretical Backgrounds of the Engineering Design Procedure of a Drying PlantJamil Sami HaddadProblem statement: This study was made to reduce energy consumption and increase productivity of drying process in many industries, to achieve the required aim, design arithmetic methods and choose the parameters of the drying machine and computing additional factors including characteristics of materials and air flow effect. Approach: The design of these types of dryers did not include the addressed … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 2 · 30 Jun 2009 · 7,494 accessesView PDFCite
Research ArticleOpen accessIn the abstractPetrography and Sulphur Isotope Studies of Pyrites in the Muteh Gold DepositM. J. Abdollahi, M. H. Karimpour, A. KheradmandProblem statement: The Muteh mining district is located in 70 km northeast of Golpaygan city within the Sanandaj-Sirjan metamorphic belt. There are 2 gold mines, 7 gold occurrences and numerous mineral indices in the Muteh gold district. There are few researches on Muteh gold district, but a detailed model is not clear yet. The aim of this study is to … …American Journal of Applied Sciences, Vol. 6, Issue 6 · 30 Jun 2009 · 7,133 accessesView PDFCite
Research ArticleOpen accessIn the abstractFraming Contests in Environmental Decision-making: A Case Study of the Tar Creek (Oklahoma) Superfund SiteShirley G. Vincent, Thomas E. ShriverProblem statement: Stakeholder involvement processes have become an important component of environmental decision-making. This study investigated the role that stakeholders operating outside of official stakeholder processes may play in influencing the policy environment. An improved understanding of the public and political influences on environmental policy decisions contributes to the development of more effective and legitimate policies. Approach: We utilized frame … …American Journal of Environmental Sciences, Vol. 5, Issue 2 · 30 Apr 2009 · 7,251 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Convergence-Confinement Method: Roles and Limits in Modern Geomechanical Tunnel DesignPierpaolo OresteThe convergence-confinement method, based on the analysis of the stress and strain state that develops in the rock around a circular tunnel, has been presented in this study with the two analytical solutions that have been most frequently used in recent years. Problem statement: Thanks to the increased power of electronic processors and the spread of numerical methods, the role … …American Journal of Applied Sciences, Vol. 6, Issue 4 · 30 Apr 2009 · 10,160 accessesView PDFCite
Research ArticleOpen accessIn the abstractSynthesis and Characterization of Gold Nanoparticles by TryptophaneAzim Akbarzadeh, Davood Zare, Ali Farhangi et al.Problem statement: Preparation and synthesis of gold nanoparticles with small size and suitable stability is very important and applicable particularly in medicine. In this study, we have prepared gold nanoparticles by chemical reduction method employing L-Tryptophane as a reducing agent for ionic gold. Approach: The gold nanoparticles are the most employed amongst the different metallic nanoparticles in the fields of … …American Journal of Applied Sciences, Vol. 6, Issue 4 · 30 Apr 2009 · 10,050 accessesView PDFCite