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51 results for “diffuse”
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Research ArticleOpen accessIn the abstractInfiltration of Nanoparticles into Porous Binder Jet Printed PartsAmelia Elliott, Sarah AlSalihi, Abbey L. Merriman, Mufeed M. BastiThe densification of parts that are produced by binder jetting Additive Manufacturing (AM; a.k.a. “3D Printing”) is an essential step in making them mechanically useful. Increasing the packing factor of the powder bed by incorporating nanoparticles into the binder has potential to alleviate the amount of shrinkage needed for full densification of binder jet parts. In this study we present … …American Journal of Engineering and Applied Sciences, Vol. 9, Issue 1 · 11 Mar 2016 · 13,401 accessesView PDFCite
Research ArticleOpen accessIn the abstractImpact of the Edges of a Backside Diffusive Reflector on the External Quantum Efficiency of Luminescent Solar Concentrators: Experimental and Computational ApproachMauro Pravettoni, Cristina S. Polo Lòpez, Robert P. KennyLuminescent Solar Concentrators (LSCs) have been proposed in the 1970s as cheap planar concentrators for residential applications and nowadays represent a novel idea with excellent perspectives for building integration photovoltaics. The interest in LSCs has increased in the last years, due to improved stability of luminescent dyes, the introduction of quantum dots and nanorods and the overall reported increase in … …American Journal of Engineering and Applied Sciences, Vol. 9, Issue 1 · 18 Jan 2016 · 8,368 accessesView PDFCite
Research ArticleOpen accessIn the abstractTHE IMPROVEMENT OF THE COMPUTATIONAL PERFORMANCE OF THE ZONAL MODEL POMA USING PARALLEL TECHNIQUESYao Yu, Ahmed Cherif Megri, Kenneth M. Flurchick, Dukka Bahadur K.C.The zonal modeling approach is a new simplified computational method used to predict temperature distribution, energy in multi-zone building and indoor airflow thermal behaviors of building. Although this approach is known to use less computer resource than CFD models, the computational time is still an issue especially when buildings are characterized by complicated geometry and indoor layout of furnishings. Therefore, … …American Journal of Engineering and Applied Sciences, Vol. 7, Issue 1 · 12 Apr 2014 · 7,736 accessesView PDFCite
Research ArticleOpen accessIn the abstractUSE OF COMPUTATIONAL FLUID DYNAMIC TO PREDICT AIRFLOW AND TEMPERATURE DISTRIBUTION IN A RESIDENTIAL BUILDING WITH AN UNDER FLOOR AIR DISTRIBUTION SYSTEMAbd Alnasser Almate A. Ali, Ahmed Cherif Megri, Paul A. Dellenback, Yao YuOur objective is to demonstrate the use of Computational Fluid Dynamic (CFD) in building applications. In particular, CFD has been used for temperature and airflow predictions of building spaces conditioned using Under Floor Air Distribution (UFAD) System. The space used is an instrumented laboratory room (old daycare center) located at the University of Wyoming. The use of the CFD simulation … …American Journal of Engineering and Applied Sciences, Vol. 7, Issue 1 · 11 Apr 2014 · 8,256 accessesView PDFCite
Research ArticleOpen accessIn the abstractDYNAMIC ENERGY MODELING OF AN EXPERIMENTAL BUILDING EQUIPPED WITH AN UNDERFLOOR AIR DISTRIBUTION (UFAD) SYSTEMYao Yu, Ahmed Cherif MegriIn this study, experimental and simulation studies were performed in a building equipped with an UFAD system in order to investigate the applicability of a new approach designed for prediction of the energy consumption of a residential building with an UFAD system. In this approach, a zonal model, Pressurized zOnal Model with the Air diffuser (POMA), was coupled with a … …American Journal of Engineering and Applied Sciences, Vol. 7, Issue 1 · 14 Mar 2014 · 8,141 accessesView PDFCite
Research ArticleOpen accessIn the abstractAttaining the Room Comfort by Solar Reflective PaintM. Sakthivel, M. Sekar, C. Ramesh, S. Satheesh KumarThe objective of this research was to provide the Room comfort by means of Solar Reflective Paint (SRP) on the roof and thereby reducing the consumption of electrical energy. Solar heat diffuses through roof into the room resulting in human discomfort. Human discomfort leads to the usage of electrical energy. Valuable energy has to be conserved. Three different samples of … …American Journal of Environmental Sciences, Vol. 8, Issue 5 · 18 Sep 2012 · 7,194 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Pressure, Water Depth and Water Flow Rate on Oxygen Saturation Level in Activated Sludge ProcessNabil N. Atta, Amro A. Elbaz, Alhassan H. SakrProblem statement: The role of aeration in activated sludge process is to provide oxygen to microorganisms as they assimilate the organic carbon compounds and digest a portion of them to carbon dioxide and water, sulfate and nitrate compounds. The water aeration equipment used in this process consumes as much as 60-80% of total power requirements in modern wastewater treatment plants. … …American Journal of Engineering and Applied Sciences, Vol. 4, Issue 4 · 21 Dec 2011 · 8,747 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffects of L-Carnitine and Cinnamon Extract Treatment on Lens Crystallins of Rats Fed High Fructose DietMohamed H. Mahfouz, Amany Abd El-Ghaffar, Mona A. Mohamed, Hala M. GhanemProblem statement: Rats fed high dietary fructose are documented to form an acquired model of insulin resistance; the present study aims to investigate possible changes in lens crystallins of rats fed high fructose diet and the effects of administration of each exogenous L-Carnitine (CA) and Cinnamon Extract (CE) on protein glycation, oxidative stress and redox homeostasis in this rat model. … …American Journal of Biochemistry and Biotechnology, Vol. 7, Issue 2 · 3 Aug 2011 · 8,716 accessesView PDFCite
Research ArticleOpen accessIn the abstractWeed Detection over Between-Row of Sugarcane Fields Using Machine Vision with Shadow Robustness Technique for Variable Rate Herbicide ApplicatorA. Muangkasem, S. Thainimit, R. Keinprasit, T. IsshikiProblem statement: Uniformly herbicide rate is used as a conventional practice in Thailand for controlling weeds in sugarcane fields. Since weeds usually grow in certain areas with non-uniformly distribution, uniform herbicide rate approach is not suitable and non-sustainable agricultural technique both in terms of economic an environmental aspect. To address these issues, Variable Herbicide Rate (VHR) was introduced. The VHR … …Energy Research Journal, Vol. 1, Issue 2 · 31 Oct 2010 · 8,238 accessesView PDFCite
Research ArticleOpen accessIn the abstractP-Glycoprotein-Mediated Efflux and Drug Sequestration in Lysosomes Confer Advantages of K562 Multidrug Resistance Sublines to Survive Prolonged Exposure to Cytotoxic AgentsNathupakorn Dechsupa, Samlee MankhetkornProblem statement: Cellular drug resistance to anticancer agents is major obstacle in cancer chemotherapy and the mechanisms by which these MDR cells possess for protecting themselves to survive prolonged exposure to cytotoxic agents still debating. The study aimed to clarify the role of P-glycoprotein (Pgp) and enhanced drug sequestration in lysosomes to confer the multidrug resistance K562 cells with varied … …American Journal of Applied Sciences, Vol. 6, Issue 9 · 30 Sep 2009 · 7,508 accessesView PDFCite