97 articles for “physical parameters”

Research ArticleOpen accessAll words, across the recordPhysical and Geometrical Effects on the Vibratory Pattern of a Pipe Carrying Fluid FlowDahmane Mouloud, Samir Zahaf, Mawhoub Soubih et al.In this research, the first natural frequencies and critical velocities of a fluid flow-conveying pipe are obtained with finite element method. By discretizing the structure wall and fluid flow, starting from beam type with two degrees of freedom per node. We determine the equation of motion from the fluid-structure coupling using Lagrange energy principle. Parameters frequencies and critical velocity of … …Current Research in Bioinformatics, Vol. 9, Issue 1 · 22 Oct 2020 · 11,396 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordPhysical Characterizations of Sands and Their Influence in Fall VelocityRuiz-Martinez Gabriel, Mendoza-Baldwin Edgar, Silva-Casarín RodolfoCancun beach is one of the most important tourist resorts on the Mexican coast, and is of prime importance to the local and national economies. As a result of the intense use of the beach and the unavailability of sand reserves, the extreme weather events that occur in the region (hurricanes) have permanently damaged the beach. Over the last two … …American Journal of Environmental Sciences, Vol. 4, Issue 3 · 30 Jun 2008 · 6,460 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordInvestigation of the Fatty Acid Profile in Some Macroalgae in Relation to the Environmental Conditions for Biodiesel ProductionNayrah Abdel Naby Shaltout, Nihal Galal Shams El-DinIn this study, fatty acids profile was determined in four algal species; namely Ulva fasciata (Chlorophyta), Corallina mediterranea, Corallina officinalis and Pterocladiella capillacea (Rhodophyta) which were collected from two sites (Abu-Qir Bay and Eastern Harbor) located on the Egyptian Mediterranean Sea during the four seasons in the period (2011-2012). In addition, nutrient content in the algal species (total nitrogen and … …American Journal of Environmental Sciences, Vol. 11, Issue 6 · 14 Dec 2015 · 7,334 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordEffect of Maturity Stage of Papaya Maradol on Physiological and Biochemical ParametersLaura E. Gayosso-García Sancho, Elhadi M. Yahia, Miguel Angel Martínez-Téllez, Gustavo Adolfo González-AguilarProblem statement: Nowadays, the worldwide increase in diseases has motivated consumers to increase the intake of fruits and vegetables, in response to various research reports indicating that fruits and vegetables can help prevent certain types of illnesses, due to their potentially high antioxidant properties. We evaluated the effect of the stage of ripeness of papaya fruit (Carica papaya L.) on … …American Journal of Agricultural and Biological Sciences, Vol. 5, Issue 2 · 30 Jun 2010 · 11,266 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordEffect of Stages of Maturity and Ripening Conditions on the Biochemical Characteristics of TomatoK.M. Moneruzzaman, A.B.M.S. Hossain, W. Sani, M. SaifuddinAn experiment was carried out to evaluate the biochemical characteristics of tomato in different maturity stages and ripening conditions. Tomato (Lycopersicon esculentum Mill) fruits (cv. Ruma VF) were harvested at the three maturity stages viz., mature green, half ripen and full ripen and stored at three condition control (without covering), straw covering and CaC2 + straw covering. At that time … …American Journal of Biochemistry and Biotechnology, Vol. 4, Issue 4 · 31 Dec 2008 · 8,046 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordAssessment of Canadian Regulations and Remediation Methods for Diesel Oil Contaminated SoilsD. G. Rushton, A E. Ghaly, K. MartinellDiesel fuel released into the environment can contaminate ground water, degrade potable water supplies and cause the collapse of fisheries. They are toxic to both animals and humans and can affect the liver, lungs, kidneys, and nervous system leading to cancer as well as immunological and reproductive effects. The objectives of this study were to review current Canadian regulations pertaining … …American Journal of Applied Sciences, Vol. 4, Issue 7 · 31 Jul 2007 · 8,758 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordUltrasonic Study and Physical Properties of Borotellurite GlassesW.M. Daud, H. Zainul, Z.A. Talib et al.A series of glasses (TeO2)x (B2O3)1-x with x = 0.6, 0.63, 0.65, 0.70, 0.73, 0.75, 0.78 and 0.80 were synthesized by rapid quenching. Longitudinal and shear ultrasonic velocity were measured at room temperature and at 5 MHz frequency. Elastic properties, Poisson’s ratio and micro hardness have been calculated from the measured density and ultrasonic velocity at room temperature. Estimated parameters … …American Journal of Applied Sciences, Vol. 2, Issue 11 · 30 Nov 2005 · 7,910 accessesView PDF Cite