Results 101 to 110 of about 17,569 (305)
Effect of operating conditions on gearbox noise [PDF]
, 1992 Low contact ratio spur gears were tested in the NASA gear noise rig to study the noise radiated from the top of the gearbox. The measured sound power from the gearbox top was obtained from a near field acoustic intensity scan taken at 63 nodes just above
Atherton, William +4 more
core +2 more sources
Strategic Change, EarlyView.ABSTRACT Start‐up CEOs are usually more aligned with the interests of the venture board compared to CEOs in legacy firms, and therefore it is usual to conclude that the traditional agency problem is lower in ventures. In this article, it is argued that this is only half of the story, and that the agency problem is reversed in early ventures such that ...
Glenn Kristiansen
wiley +1 more source
Jixie chuandong, 2010 The geometrical parameters of the involute arc cylindrical gear are introduced.Starting from their tooth flank equations,the equations of the lines of contact and contact ratio are analyzed.On this basis,it proposes the method for calculating the contact
吴伟伟 +3 more
doaj
Kinematic precision of gear trains [PDF]
Kinematic precision is affected by errors which are the result of either intentional adjustments or accidental defects in manufacturing and assembly of gear trains. A method for the determination of kinematic precision of gear trains is described.
Coy, J. J. +3 more
core +1 more source
Baseline Experimental Results on the Effect of Oil Temperature on Shrouded Meshed Spur Gear Windage Power Loss [PDF]
Rotorcraft gearbox efficiencies are reduced at increased surface speeds due to viscous and impingement drag on the gear teeth. This windage power loss can affect overall mission range, payload, and frequency of transmission maintenance.
Delgado, Irebert R. +1 more
core +2 more sources
CSR disclosure and investment efficiency in MENA countries: The moderating role of CSR committee
Strategic Change, EarlyView.ABSTRACT Corporate social responsibility disclosure (CSRD) is often recognized as a transparency mechanism that allows companies to communicate their commitment to CSR. However, CSRD may also exacerbate agency conflicts. This study addresses these two contrasting perspectives by investigating the impact of CSRD on investment efficiency and exploring ...
Mohamed Malek Belhoula +3 more
wiley +1 more source
Jixie chuandong, 2013 Based on the analysis of the generating mechanism for cylindrical gears with curvilinear shape teeth,a new way of such gear modeling for manufacture is proposed.Adopting the secondary development of UG and the approach of gear blank rolling feed and gear
唐锐, 张敬东, 张祺
doaj
Effect of shot peening on surface fatigue life of carburized and hardened AISI 9310 spur gears [PDF]
Surface fatigue tests were conducted on two groups of AISI 9310 spur gears. Both groups were manufactured with standard ground tooth surfaces, with the second group subjected to an additional shot peening process on the gear tooth flanks.
Townsend, D. P., Zaretsky, E. V.
core +1 more source
RESEARCH OF DEFECTS IN SPUR GEAR
Mokslas - Lietuvos ateitis, 2010 This study presents a review of gear diagnostic methods. Also presented nonlinear dynamic model of spur gear. We modeled backlash, bearing flexibility and variable teeth stiffness.
openaire +3 more sources
JEADV Clinical Practice, EarlyView.ABSTRACT Background Porokeratoses represent a group of keratinization disorders characterized histopathologically by the presence of a cornoid lamella. The recognition of porokeratosis as a genodermatosis, along with its association with increased risk of skin cancer, underscores the importance of accurate and timely diagnosis.
Rahime Inci +5 more
wiley +1 more source