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31 articles for “internal characteristics”
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Research ArticleOpen accessEvery word in the titleNumerical Study on the Performance Characteristics of Hydrogen Fueled Port Injection Internal Combustion EngineRosli A. Bakar, Mohammed K. Mohammed, M. M. RahmanThis study was focused on the engine performance of single cylinder hydrogen fueled port injection internal combustion engine. GT-Power was utilized to develop the model for port injection engine. One dimensional gas dynamics was represented the flow and heat transfer in the components of the engine model. The governing equations were introduced first, followed by the performance parameters and model … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 2 · 30 Jun 2009 · 8,140 accessesView PDFCite
Research ArticleOpen accessIn the keywordsFirm's Environmental Performance: A Review of Their DeterminantsAmir Hossein Montazer Hojat, Khalid Abdul Rahim, Lee ChinProblem statement: The role of environment in global economic development is vital since it is the life-support system providing sources of food and water, pleasant surroundings and sceneries and transportation lines. Firms’ environmental performances are of high interest in worldwide environmental protection. Approach: Many factors affect firms’ environmental performance. Some of these are of external origin while others are of … …American Journal of Economics and Business Administration, Vol. 2, Issue 3 · 30 Sep 2010 · 8,229 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Effects of Oil Film Shape on Piston Ring and Liner Tribology Under Mixed LubricationAbbas Razavykia, Cristiana Delprete, Eugenio Brusa, Yaser HosseiniMechanical power loss reduction at lubricated reciprocating and rotating components is recognized as an approach to improve the efficiency and to reduce the emissions of Internal Combustion Engines (ICEs). To achieve these goals, the instantaneous investigation of lubrication characteristics is required. Piston ring pack is of paramount importance as it is known as major contributor to frictional losses and energy … …American Journal of Engineering and Applied Sciences, Vol. 14, Issue 4 · 10 Nov 2021 · 6,523 accessesView PDFCite
Review ArticleOpen accessIn the abstractThe Impact of Di-2-Ethylhexyl Phthalate (DEHP) in Focus on the Reproductive System and Toxicity in Rat or Mammalian ModelVenkataramanaiah Poli, Srinivasulu Reddy MotireddyAbsalan, F., Saremy, S., Mansouri, E., Moghadam, M. T., Moghadam, A. R. E., & Razie, G. (2016). Effects of Mono-(2-Ethylhexyl) Phthalate and Di-(2-Ethylhexyl) Phthalate Administrations on Oocyte Meiotic Maturation, Apoptosis and Gene Quantification in Mouse Model. Cell Journal, 18(4), 503–513. https://doi.org/10.22074/cellj.2016.4717 Acevedo‐Rodriguez, A., Kauffman, A. S., Cherrington, B. D., Borges, C. S., Roepke, T. A., & Laconi, M. (2018). Emerging … …American Journal of Pharmacology and Toxicology, Vol. 19, Issue 1 · 6 Jun 2024 · 12,990 accessesView PDFCite
Research ArticleOpen accessIn the abstractPerformance, Carcass Traits and Quality of Longissimus lumborum muscle of Santa Inês lambsFabio Borba Ferrari, Juliana Lolli Malagoli de Mello, Rodrigo Fortunato de Oliveira et al.The aim of this research was to evaluate carcass traits and meat quality of finishing lambs in pastures with different leaf area index with or without high protein-mineral supplementation. In this study, forty-eight young Santa Inês rams were used, with an average initial body weight of 13.5 kg and an average age of 4 months. For approximately 10 h a … …American Journal of Animal and Veterinary Sciences, Vol. 15, Issue 1 · 11 Jan 2020 · 7,190 accessesView PDFCite
Research ArticleOpen accessIn the abstractOperational Fault Diagnosis in Industrial Hydraulic Systems Through Modeling The Internal Leakage of its ComponentsP. Athanasatos, D. Koulocheris, T. Costopoulos, K. RaptisIn this study, a model of a high pressure hydraulic system was developed using the bond graph method to investigate the effect of the internal leakage of its main components (pump, cylinder and 4/2 way valve) on the operational characteristics of the system under various loads. All the main aspects of the hydraulic circuit (like the internal leakages, the compressibility … …American Journal of Applied Sciences, Vol. 10, Issue 12 · 7 Nov 2013 · 7,247 accessesView PDFCite
Research ArticleOpen accessIn the abstractFlattening Effect on Heat Transfer Characteristics of a Sintered-Wick Heat PipeWeeranut Intagun, Pradit Terdtoon, Phurt SakulchangsatjataiThe effect of pipe flattening on heat transfer characteristics and the internal phenomena of a sintered-wick heat pipe has been investigated by using three-dimensional Finite Element Method. The calculation domains were focused at three important regions, i.e., vapor core, wick and wall. The Cartesian coordinates and the three-dimensional tetrahedral elements were applied in this model. The selected total elements were … …American Journal of Applied Sciences, Vol. 10, Issue 7 · 4 Jul 2013 · 7,342 accessesView PDFCite
Research ArticleOpen accessIn the abstractDemotivating Factors for English Language Learning Among University StudentsReyhaneh Ghadirzadeh, Fariba Pourabolfathe Hashtroudi, Omid ShokriProblem statement: Demotivation is a relatively new issue in the field of second/foreign Language (L2) learning motivation. Recognizing and removing barriers can have a marked effect on motivation and attention to learning in general and ESL/EFL learning in particular. Demotivating factors are essential factors which negatively influence the learner’s attitudes and behaviors and hence lead to undesired learning outcomes. The … …Journal of Social Sciences, Vol. 8, Issue 2 · 21 Feb 2012 · 11,929 accessesView PDFCite
Research ArticleOpen accessIn the abstractInfluence of Citric Acid and Microbial Phytase on Growth Performance and Carcass Characteristics of Broiler ChickensRouhollah Nourmohammadi, Seyed Mohammad Hosseini, Homayoun FarhangfarProblem statement: The aim of this study was to investigated the effects of adding citric acid and microbial phytase supplementation (Natuphos®) on growth performance and carcass characteristics of broiler chickens fed corn soybean meal base diets. Approach: The experiment included nine treatments with 10 birds in each replicate using a 3×3 factorial design for two main factors of citric acid … …American Journal of Animal and Veterinary Sciences, Vol. 5, Issue 4 · 31 Dec 2010 · 8,297 accessesView PDFCite
Research ArticleOpen accessIn the abstractTransient in-Cylinder Gas Flow Characteristics of Single Cylinder Port Injection Hydrogen Fueled EngineM. M. Rahman, Khalaf I. Hamada, M. M. Noor et al.Problem statement: The variation of the in-cylinder gas flow characteristics for single cylinder port injection hydrogen fueled internal combustion engine was investigated through transient state simulation. Approach: One dimensional gas dynamics was described the flow and heat transfer in the components of the engine model. Special attention is paid to selection and correction of heat transfer correlation which describe of … …American Journal of Applied Sciences, Vol. 7, Issue 10 · 31 Oct 2010 · 8,647 accessesView PDFCite