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462 results for “BEA”

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Research ArticleOpen accessEvery word in the titleModification of Carbon Steel by Laser Surface Melting: Part II: Effect of Laser Beam Power on Microstructural Features and Surface HardnessHashem F. El-Labban, M. Abdelaziz, Essam R.I. MahmoudThe surface hardness has an important effect on the wear resistance of different materials. The present study aims to improve the surface hardness of carbon steel through the application of laser surface melting with suitable conditions. The laser beam power and travelling speed are the main factors that affect the properties of the treated zone. In this study, three different … …American Journal of Engineering and Applied Sciences, Vol. 6, Issue 4 · 30 Jan 2014 · 7,211 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleModification of Carbon Steel by Laser Surface Melting: Part I: Effect of Laser Beam Travelling Speed on Microstructural Features and Surface HardnessHashem F. El-Labban, M. Abdelaziz, Essam R.I. MahmoudThe present study aims to improve the surface hardness of carbon steel by application of laser surface melting of effective conditions. The travelling speed of laser beam during this treatment is one of the important treatment conditions. This study aims to investigate the effect of laser surface melting with different beam speeds on macro and microstructure as well as the … …American Journal of Engineering and Applied Sciences, Vol. 6, Issue 4 · 2 Jan 2014 · 7,407 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleDuctility Behavior Fiber Reinforced Concrete Beams Strengthened With Externally Bonded Glass Fiber Reinforced Polymer LaminatesMariappan Mahalingam, Ragunath Pulipakka Narashima Rao, Suguna KannanThe study presents the results of an experimental investigation conducted on Steel Fiber Reinforced Concrete (SFRC) beams with externally bonded Glass Fiber Reinforced Polymer (GFRP) laminates with a view to study their strength and ductility. A total of ten beams, 150×250 mm in cross-section were tested in the laboratory over an effective span of 2800 mm. Three fiber reinforced concrete … …American Journal of Applied Sciences, Vol. 10, Issue 1 · 24 Feb 2013 · 6,931 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleBiological Control of Spodoptera frugiperda Eggs Using Telenomus remus Nixon in Maize-Bean-Squash PolycultureAntonio GutiA©rrez-MartAnez, Alfredo Tolon-Becerra, Xavier B. Lastra-BravoThe maize earworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae), is an important pest in maize. Telenomus remus Nixon (Hymenoptera: Scelionidae) is an important control agent of this pest due to its capacity to invade the whole egg mass. The percentage of parasitism by Telenomus remus Nixon (Hymenoptera: Scelionidae) on Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) eggs was evaluated in maize-bean, … …American Journal of Agricultural and Biological Sciences, Vol. 7, Issue 3 · 17 Jul 2012 · 10,890 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThe Comparison of Experimental and Analytical Study of the Gaussian IntensityDistribution for Light Emitting Diodes BeamMohammad Syuhaimi Ab-Rahman, Luqman Al-Hakim Azizan, Harry Ramza, Zulkifli MusaProblem statement: Wireless communication using white Light Emitting Diodes (LEDs) is the latest research field for next-generation communication. This study studies the comparison of Gaussian intensity distribution of the white LED using experimental and analytical method. The white LEDs are conducted to transmit an audio signal to the receiver. The receiver circuit consist of solar cell connected to the speaker … …Journal of Computer Science, Vol. 8, Issue 6 · 17 Mar 2012 · 7,271 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAn Adaptive Neuro-Fuzzy Inference System Based Modeling for Corrosion-Damaged Reinforced HSC Beams Strengthened with External Glass Fibre Reinforced Polymer LaminatesV. Balasubramaniam, P. N. Raghunath, K. SugunaProblem statement: This study presents the results of ANFIS based model proposed for predicting the performance characteristics of reinforced HSC beams subjected to different levels of corrosion damage and strengthened with externally bonded glass fibre reinforced polymer laminates. Approach: A total of 21 beams specimens of size 150, 250×3000 mm were cast and tested. Results: Out of the 21 specimens, … …Journal of Computer Science, Vol. 8, Issue 6 · 17 Mar 2012 · 7,088 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAntagonistic Effects of Fertilizer on Photochemical Efficiency of Hibiscus cannabinus L. (Kenaf) Planted on Beach Ridges Interspersed with Swales SoilMohd-Hazimy Yusoff, Hazandy Abdul-Hamid, Arifin Abdu et al.Problem statement: Hibiscus cannabinus L. or Kenaf is a highly productive, warmseasonal C3 annual crop and is one of the potential candidates to substitute kenaf fiber as raw product for pulp and paper production. It survives well on less fertile soils including those of Beach Ridges Interspersed with Swales (BRIS) soil. Approach: The objective of this study was to determine … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 3 · 19 Sep 2011 · 8,512 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleShear Strength of Reinforced Concrete Beam Strengthened by Transverse External Post-tensionSayan Sirimontree, Boonsap Witchayangkoon, Nathavudh Khaosri, Jaruek TeerawongProblem statement: Shear failure of concrete beam is brittle manner without warning so inadequate design for shear of beam and/or material deterioration lead to the possibility of sudden failure of beam. The change of functional use and future increased load of structure lead to the need for strengthening of concrete structure. Approach: This research focuses on behaviors under static loading … …American Journal of Engineering and Applied Sciences, Vol. 4, Issue 1 · 31 Jan 2011 · 8,869 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleShould Individual Investors Use Technical Trading Rules to Attempt to Beat the Market?Thomas S. Coe, Kittipong LaosethakulProblem statement: Despite widespread academic acceptance of the Efficient Markets Hypothesis, some stock traders still use technical trading rules in an attempt to beat the market. Approach: This study looked at four trading rules, namely, the arithmetic moving average, the relative strength index, a stochastic oscillator and its moving average. These trading rules compare the relationship of current prices to … …American Journal of Economics and Business Administration, Vol. 2, Issue 3 · 30 Sep 2010 · 9,442 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSurface Modification of Polystyrene Beads by Ultraviolet/Ozone Treatment and its Effect on Gelatin CoatingA. N. Yusilawati, M. Maizirwan, M. S. Hamzah et al.Problem statement: Polystyrene failed to provide any reactive functionality of surface hydrophilicity that is capable of binding proteins. It is known that polystyrene must be chemically modified to make its surface amenable to covalent crosslinking with protein. Approach: The aim of this study was to investigate the effects of UV/ozone treatment on gelatin coating. The surfaces of microsize polystyrene beads … …American Journal of Applied Sciences, Vol. 7, Issue 6 · 30 Jun 2010 · 8,852 accessesView PDFCite