Results 71 to 80 of about 48,157 (176)
CF6 jet engine diagnostics program. High pressure turbine roundness/clearance investigation [PDF]
The effects of high pressure turbine clearance changes on engine and module performance was evaluated in addition to the measurement of CF6-50C high pressure turbine Stage 1 tip clearance and stator out-of-roundness during steady-state and transient ...
Fasching, W. A., Howard, W. D.
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Acta CarsologicaThis study investigates the clastic fluvial sediments of the Jedovnický submerging stream in the section between the Jedovnice village and Křtinský stream (Moravian Karst, Czechia).
Jan Lenart, Filip Chalupka
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Textural and Lithologic Differences of Cretaceous, Tertiary, and Quaternary Gravels of South Arkansas [PDF]
, 1987 Stream gravels have been derived from the Ouachita Mountains since at least Cretaceous times. Past studies have assigned ages to gravel deposits in the basins of the Saline and Little Missouri Rivers on the basis of altitude above local floodplains. This
Wood, Lesli
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On some low distortion metric Ramsey problems
, 2004 In this note, we consider the metric Ramsey problem for the normed spaces l_p. Namely, given some 1=1, and an integer n, we ask for the largest m such that every n-point metric space contains an m-point subspace which embeds into l_p with distortion at ...
Assaf Naor +3 more
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CF6 jet engine performance improvement: High pressure turbine roundness [PDF]
An improved high pressure turbine stator reducing fuel consumption in current CF6-50 turbofan engines was developed. The feasibility of the roundness and clearance response improvements was demonstrated. Application of these improvements will result in a
Fasching, W. A., Howard, W. D.
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Journal of Experimental and Theoretical AnalysesTangential turning produces an asymmetric cutting-force system that may cause tool and workpiece deflection, leading to cylindricity, coaxiality, and roundness deviations in practice.
István Sztankovics
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Evaluation of Wear between Pin and Bush in Roller Chain
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2009 A roller chain is a typical machine element used in bicycles, motorcycles and many other devices for power transmission. The life of a roller chain is determined by elongation.
Shoji NOGUCHI +3 more
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The bimodal initial mass function in the Orion Nebula Cloud
, 2016 Due to its youth, proximity and richness the Orion Nebula Cloud (ONC) is an ideal testbed to obtain a comprehensive view on the Initial Mass Function (IMF) down to the planetary mass regime.
Bayo, A. +7 more
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MachinesThe turning of small-diameter deep holes is usually critical when the process of machining is unstable and the use of a special boring bar is often necessary.
Tomáš Vopát +8 more
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Improvement of surface roughness in simultaneous two turrets turning with low-frequency vibration
Journal of Advanced Mechanical Design, Systems, and ManufacturingLow-frequency vibration cutting (VC) is a machining technology wherein a tool periodically vibrates to break cutting chips. However, VC produces tool paths that include air cuts to break up chips, which deteriorates surface roughness and roundness.
Shogo NAKAMURA +8 more
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