Results 121 to 130 of about 189,925 (269)
Analysis of the influence of transition state control strategy on structural load of quad-tiltrotor
Hangkong gongcheng jinzhanThere are complex structural load changes in the rotor during the tilt-transition of quad-tiltrotor aircraft,which can directly affect the life of the rotor.
HE Yongtao +3 more
doaj +1 more source
A Lagrange-D'Alembert formulation of the equations of motion of a helicopter carrying an externally suspended load [PDF]
The exact nonlinear equations of motion are derived for a helicopter with an extenal load suspended by fore and aft, rigid-link cables. Lagrange's form of D'Alembert's principle is used.
Greif, R. K., Weber, J. M.
core +1 more source
The British Journal of Sociology, EarlyView.ABSTRACT This piece examines the systematic erosion of academic freedom and the institutionalized censorship and repression of academics in Iran following the Woman, Life, Freedom movement, where universities have been reshaped into extensions of the security state through ideological vetting, pervasive surveillance, and the purging of dissenting ...
Arash Beidollahkhani
wiley +1 more source
Advanced ScienceIn this work, the regulation of liquid self‐transport is achieved through architectural and thermal coupling, transitioning from free surfaces to open channels.
Qingwen Dai +3 more
doaj +1 more source
Design study of Self-Alining Bearingless Planetary (SABP) gear [PDF]
The feasibility of using the self alining, bearingless planetary (SABP) transmission in an uprated version of the OH-58 helicopter was evaluated, specific performance comparisons of this new transmission with contemporary helicopter transmission systems ...
Folenta, D. J.
core +1 more source
A novel generalized spatial mark‐resight model that accounts for group associations
Methods in Ecology and Evolution, EarlyView.Abstract The number and distribution of animals in space form the basis of many wildlife studies. Yet, reliable estimation of population abundance remains challenging. Generalized spatial mark‐resight (gSMR) models are widely applicable abundance estimators that do not require all individuals be uniquely identifiable.
Connor J. Meyer +3 more
wiley +1 more source
The role of the helicopter in transportation [PDF]
A general overview is presented of the role that the helicopter plays in the current aviation scene with special emphasis on its use in the airport access function.
Dajani, J. S. +3 more
core +1 more source
Food Subsidies Reduce Livestock Depredations by a Recovering Carnivore
Animal Conservation, EarlyView.Diversionary feeding—providing food caches to divert predators away from preying on livestock—is a strategy to reduce depredations by Mexican gray wolves but has not been evaluated for its effectiveness. We used data from the Mexican wolf recovery program from 2014‐2021 to evaluate whether diversionary feeding reduced livestock depredations by wolf ...
Matthew Hyde +8 more
wiley +1 more source
CHANCE: A FRENCH-GERMAN HELICOPTER CFD-PROJECT [PDF]
, 2006 The paper gives an overview of the CHANCE research project (partly supported by the French DPAC and DGA and the German BMWA) which was started in 1998 between the German and French Aerospace Research Centres DLR and ONERA, the University of Stuttgart and
Altmikus, Andree +4 more
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