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Toplam kayıt 144, listelenen: 94-113
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Labyrinth Seal Leakage Degradation Due to Various Types of Wear
(Asme, 2017)This paper systematically presents a complete leakage comparison for various types of wear experienced by labyrinth seals. Labyrinth seals used in turbine engines are designed to work at a clearance during steady-state ... -
Long-Term Stability of Ferroelectret Energy Harvesters
(MDPI, 2020)Cellular polypropylene (PP) has been recently used in energy harvesting applications. In this work, we investigate its viability and long-term stability under various operating conditions. Specifically, the effect of ... -
Mechanical and microstructural features of autoclaved aerated concrete reinforced with autoclaved polypropylene, carbon, basalt and glass fiber
(Elsevier Sci Ltd, 2015)Autoclaved aerated concrete (MC) is a construction material obtained by being pore-forming of the mixture prepared with finely crushed siliceous aggregate lime, water and limestone with the addition of aluminum powder and ... -
Microstructural, mechanical and dry sliding wear properties of the MgO reinforced aluminium matrix composites produced by vacuum infiltration
(Redakcia Kovove Materialy, 2014)Dry sliding wear properties of MgO (10-40 vol.%) reinforced aluminium matrix composites produced by vacuum infiltration method were investigated using a pin-on-disc test machine after examining their microstructural and ... -
The minimization of absolute deviation from common due date in two machine flowshop scheduling with learning effect
(Gazi Univ, Fac Engineering Architecture, 2009)The phenomenon of the learning effect has been extensively studied in many different areas of operational research. However, there have been a few studies in the general context of production scheduling; also there have ... -
Modeling of the vibrations caused by ball bearing defects
(2003)In this study a shaft-ball bearing system is modeled in order to investigate the vibrations of ball bearings with running surfaces defects. Shaft and bearing was modeled as mass-spring system and balls were assumed have ... -
Modelling of yield length in the mould of commercial plastics using artificial neural networks
(Elsevier Sci Ltd, 2007)According to the yield length of a plastic, whether a mould is filled fully or not can be estimated. In this study, a new formula based on various injection parameters was developed to determine the yield length in plastic ... -
Multivariate statistical methods for detection of spur gear faults
(Sage Publications Ltd, 2015)In this study, multivariate statistical techniques are experimented for a spur gear system and a methodology is proposed. The approach is based on the analysis of multidimensional gear vibration data without any feature ... -
Natural frequencies of cross-ply laminated singly curved panels
(Pergamon-Elsevier Science Ltd, 1996)… -
A new approach for postprocessor design
(2005)Nowadays, it can be possible that the parts which have complex shapes can be manufactured easily with the improvements on the Computer Integrated Manufacturing (CIM). Cutter Location Data (CLDATA) can be created with a ... -
A new approach to thermodynamic analysis of ejector-absorption cycle: artificial neural networks
(Pergamon-Elsevier Science Ltd, 2003)Thermodynamic analysis of absorption thermal systems is too complex because of analytic functions calculating the thermodynamic properties of fluid couples involving the solution of complex differential equations. To ... -
A new method for extracting 3D solid models of objects using 2D technical drawings
(2007)In this study, a new method called "3D-Space" have been developed to obtain 3D models of prismatic machine parts using 2D technical drawings. The algorithm basicaly works in the following manner: 3 basic views (i.e. top, ... -
Numerical Analysis Of Cooling An Electronic Circuit Component With Cross Flow And Jet Combination
(Cambridge Univ Press, 2019)In this study, cooling of a constant temperature cube that represents electronic components inserted inside a channel are investigated. For this purpose, primary air with constant velocity is transferred from channel input, ... -
Numerical Analysis of Cooling Down a Micro ATX Computer Chassis
(Kaunas Univ Technol, 2018)The technological development in the current environment is in line with the development of computer technologies. Therefore, operation loads of computer processors and capacities and processors and other electronic circuit ... -
The Numerical and Experimental Investigation of the Change of the Thermal Conductivity of Expanded Polystyrene at Different Temperatures and Densities
(Hindawi Ltd, 2019)The determination of the thermal conductivity of insulation materials depending on which parameters in the application as well as the production is very important. In this direction, the parameters affecting thermal ... -
Numerical and experimental stress analysis of a polymeric composite hip joint prosthesis
(John Wiley & Sons Inc, 1996)A comparative stress analysis of a polymeric composite hip joint replacement was performed. A prototype short carbon-fiber reinforced PEEK (CF/PEEK) prosthesis was manufactured by injection molding. Finite element (FE) ... -
A numerical study of laminar heat convection in ducts of irregular cross-sections
(Pergamon-Elsevier Science Ltd, 1997)Forced convective heat transfer during hydrodynamically fully developed laminar fluid flow inside ducts of irregular cross section is analyzed utilizing numerical methods. The elliptic grid generation technique is used to ... -
Optimization of mechanical (Swage) autofrettage process
(Gazi Univ, Fac Engineering Architecture, 2019)Autofrettage is the process of residual stress formation on the walls of the thick walled cylinders before their usage. These residual stresses help to increase the pressure bearing capacity of the thick walled cylinders ... -
Optimization of Screw Elements by Genetic Algorithm
(Carl Hanser Verlag, 2014)In the present study, dimensional optimization of screw system elements, like shaft diameter, arm length and nut height, has been performed by tensile, torsional, and shear strength calculations via genetic algorithm. ... -
Öğrenme Etkili Erken/Geç Tamamlanma Çizelgeleme Problemleri İçin bir Literatür Araştırması
(2009)Bir görev veya iş sürekli yapıldığı takdirde belirli bir alışkanlık ve öğrenme olur ve ilerleyen zamanlarda bu işi tamamlamak için gerekli kaynaklara olan (işgücü, malzeme, vb.) ihtiyaç azalır. Bu "Öğrenme Eğrisi" ile ilk ...