Güncel Gönderiler: Scopus İndeksli Yayınlar Koleksiyonu
Toplam kayıt 8325, listelenen: 921-940
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Impact of aircraft performance characteristics on air traffic delays
(2004)Air transportation has been suffering for decades from delays caused by air traffic congestion. This paper presents the effect of aircraft performance differences on air traffic delays. Rate of climb and cruising speeds ... -
The use of information technologies and systems in airlines
(2009)All over the world, air passengers would like to determine their destination, prefer an airline company among the many in the world, buy their tickets without any difficulty and make any changes when necessary. Then they ... -
Voice of Turkish customer: Importance of expectations and level of satisfaction at airport facilities
(Canadian Center of Science and Education, 2009)Delivering high-quality service to passengers is essential for airports survival. Service quality conditions influences an airports competitive advantage by profitability. To deliver better service to passengers, airports ... -
Thermoeconomic analysis of farine mill in dry type cement production [Kuru ti·p çi·mento üreti·mi·nde fari·n degi·rmeni·ni·n termoekonomi·k anali·zi·]
(2010)Thermoeconomics is the cost analysis based on the cost and exergy calculations which are used to determine the potential of unproductiveness in all of the thermal systems. This approach is also defined as `exergy cost` and ... -
Nonlinear model predictive swing-up and stabilizing sliding mode controllers
(2009)In this paper, a nonlinear model predictive swing-up and stabilizing sliding controller is proposed for an inverted pendulum-cart system. In the swing up phase, the nonlinear model predictive control is formulated as a ... -
Performance figures of merit for turbojet/fan transport aircraft performance comparison and conceptual design
(2003)A set of aircraft performance figures of merit for different phases of flight mission is derived from aircraft performance equations. In addition, an overall performance figure of merit combining the derived performance ... -
Dwell time effect on fatigue crack growth of RR1000 superalloy
(Taylor & Francis LTD, 2007)The requirement for improved understanding of the behaviour of turbine disc alloys at elevated temperatures has led to an increased interest in the contribution of time dependant mechanisms to high temperature fatigue crack ... -
Multiaxial thermo-mechanical fatigue on material systems for gas turbines
(Wiley-V C H Verlag GMBH, 2007)Material systems made from nickel based superalloys with protective coatings have been tested in thermo-mechanical fatigue with superposed thermal gradients, which generated multiaxial stress states. The testing conditions ... -
Aero-propulsive modeling of transport aircraft for air traffic management applications
(2004)Aerodynamic and propulsive modeling of current aircraft fleet is vital for Air Traffic Management applications, especially for use in decision support tools to predict aircraft trajectories and simulation tools. There are ... -
Testing and characterization of ceramic thermal barrier coatings
(Trans Tech Publications LTD, 2005)This paper gives a short overview of tests applied for the investigation of long term behaviour of thermal barrier coating systems. A variety of tests has been conducted on an exemplary material system with the coatings ... -
Defect evolution in thermal barrier coating systems under multi-axial thermomechanical loading
(Elsevier Science Sa, 2005)In service, gas turbine components with thermal barrier coatings experience high cyclic mechanical and thermal loading. Important, but not yet considered sufficiently, are the multi-axial stresses arising from thermal ... -
The role of cyclic mechanical loading and thermal gradients in damage behavior of thermal barrier coating systems
(2005)Ceramic thermal barrier coatings (TBC) can exhibit premature in-service failure due to spallation as a consequence of exposure to elevated temperatures, aggressive environments, and cyclic thermal and mechanical loading. ... -
Parallel solution of low aspect ratio rectangular flat wings in compressible flow
(2005)Two block parallel Navier Stokes solutions of an aspect ratio 1.0 flat plate with sharp edges are obtained at different Mach numbers and angles of attack. Reynolds numbers are of the order of 200,000-300,000. The flow field ... -
Marching distance functions for smooth control of hyperbolic grids
(Amer Inst Aeronaut Astronaut, 2000)… -
High temperature bending creep behavior of a multi-cation doped alpha/beta-SiAlON composite
(Elsevier Sci LTD, 2011)SiAlON ceramics with high hardness and high toughness can be made through designing alpha/beta-SiAlON composites. An important advantage of alpha-SiAlON phase is that the amount of intergranular phase is reduced by the ... -
Training of the maintenance personnel to prevent failures in aircraft systems
(Pergamon-Elsevier Science LTD, 2011)The aircraft maintenance process plays a vital role in aviation safety. The quality of the maintenance process and the qualifications of the aircraft maintenance personnel are important factors in the safety of aircraft. ... -
Failure analysis of an aircraft piston engine components
(Pergamon-Elsevier Science LTD, 2009)In this study, failed parts from the piston engine of TB-20 Trinidad aircraft which declared an emergency landing to Anadolu University Airport, Eskisehir, Turkey due to the over-speed of propeller during a training flight ... -
Microstructural observation of overload effect on the fatigue crack growth of 2024-T3 Al-alloy
(IOP Publishing LTD, 2004)Microstructural investigation of fracture surfaces after fatigue crack growth experiments on 2024-T3 centrally cracked specimens was carried out. Variable amplitude loadings were used with periodic overload cycles added ...
