Results 101 to 110 of about 26,083 (287)
An overview of advancements in helicopter transmission design [PDF]
, 1983 Development of a high temperature operating helicopter gearbox is ...
Mancini, J. H.
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Strategic Management Journal, EarlyView.Abstract Research Summary Despite the importance of resource reallocation in shaping a variety of strategic outcomes, strategy scholars have paid only limited attention to the processes by which firms reallocate their resources across successive systemic innovations.
Gino Cattani +2 more
wiley +1 more source
Design Method with High Comprehensive Performance for External Gear-pumps and Gear-motors
Jixie chuandongUnder the premise of ensuring constant output capacity and equal displacement, in order to improve the comprehensive performance of the external gear-pumps and gear-motors, the relation between the constructed equal displacement and gear profile ...
Li Yulong, Liu Ping, Shi Yunyang
doaj
ActuatorsThis study presents a computational fluid dynamics (CFDs) investigation of the hydrodynamic behavior of surface-textured lateral bushings in external gear pumps (EGPs), emphasizing the effects of combined sliding and squeezing motions within the ...
Paolo Casoli +3 more
doaj +1 more source
Automatic controls and regulators: A compilation [PDF]
Devices, methods, and techniques for control and regulation of the mechanical/physical functions involved in implementing the space program are discussed.
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Small, EarlyView.ABSTRACT The rapid expansion of the Internet of Things (IoT) and wearable electronics necessitates sustainable power sources to replace the limited electrochemical battery. While mechanical energy harvesting offers a promising solution, traditional harvesters face challenges of irregular and low−frequency environmental sources. This review presents the
Yongbin Han +2 more
wiley +1 more source
Centrifugal pumps for rocket engines [PDF]
The use of centrifugal pumps for rocket engines is described in terms of general requirements of operational and planned systems. Hydrodynamic and mechanical design considerations and techniques and test procedures are summarized.
Campbell, W. E., Farquhar, J.
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steel research international, EarlyView.This study uses in situ synchrotron X‐ray diffraction at the German Electron Synchrotron to analyze low‐pressure carburizing (LPC) in steels. The findings reveal surface carbon saturation and carbide formation kinetics, and phase‐specific stress development during quenching. The results show carbide kinetics depend on steel grade and size, while stress
Ogün Baris Tapar +6 more
wiley +1 more source
Influence of the Inter Teeth Volumes on the Noise Generation in External Gear Pumps
Archives of Acoustics, 2015 The paper shows the new method for noise reduction in external gear pumps based on the analysis of the pressure in inter teeth volumes. The simulation model and measurement results of pressure changes in the inter teeth volume has been presented.
Wiesław FIEBIG
doaj
Study of the application of advanced technologies to laminar-flow control systems for subsonic transports. Volume 2: Analyses [PDF]
For abstract, see N76 ...
Bennett, J. A. +4 more
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