Results 81 to 90 of about 64,260 (282)
Interactional aerodynamics and acoustics of a propeller-augmented compound coaxial helicopter [PDF]
, 2008 The aerodynamic and acoustic characteristics of a generic hingeless coaxial helicopter with a tail-mounted propulsor and stabiliser have been simulated using Brown's Vorticity Transport Model.
Brown, Richard +3 more
core
Pss knockdown in the midgut causes growth retardation in Drosophila similar to that in human LMHD
Developmental Dynamics, EarlyView.Abstract Background Phosphatidylserine synthase (PSS), localized in the mitochondrial membrane, synthesizes phosphatidylserine. In humans, mutations in Pss lead to Lenz–Majewski hyperostotic dwarfism, a disorder affecting growth and development. The effects of Pss mutations on the growth of Drosophila melanogaster are not fully known. Hence, this study
Kwan‐Young Kim +4 more
wiley +1 more source
Rotor-vortex interaction noise [PDF]
A theoretical and experimental study was conducted to develop a validated first principles analysis for predicting noise generated by helicopter main-rotor shed vortices interacting with the tail rotor.
Amiet, R. K., Schlinker, R. H.
core +1 more source
Simulation of wind turbine wake interaction using the vorticity transport model [PDF]
, 2010 The aerodynamic interactions that can occur within a wind farm can result in the constituent turbines generating a lower power output than would be possible if each of the turbines were operated in isolation.
Ahlin +15 more
core +1 more source
Energy Science &Engineering, EarlyView.This paper aims to provide a robust design approach for HAWTs operating in shear flow. This study fills a critical research gap by integrating BEM and vortex theories for blade design in non‐homogeneous inflow conditions. The authors of the paper made an effort to develop and test an experimentally unsophisticated model of a turbine working in shear ...
Agnieszka Dorota Woźniak +2 more
wiley +1 more source
An unsteady helicopter rotor: Fuselage interaction analysis [PDF]
A computational method was developed to treat unsteady aerodynamic interactions between a helicopter rotor, wake, and fuselage and between the main and tail rotors.
Egolf, T. Alan, Lorber, Peter F.
core +1 more source
Proteins: Structure, Function, and Bioinformatics, EarlyView.ABSTRACT Anaerobic ammonium‐oxidizing (anammox) bacteria employ a unique, hydrazine‐based pathway to obtain energy from nitrite and ammonium. These organisms possess distinct Rieske/cytochrome b complexes whose precise role in anammox metabolism remains unclear, but which have been proposed to include the generation of NAD(P)H.
David Hauser +4 more
wiley +1 more source
Nihon Kikai Gakkai ronbunshu, 2015 This paper describes considerations of the effectiveness about the recovery control of the yaw rate motion of single-rotor helicopters by using both motors (engines) and main-rotor brakes in autorotation flight under tail-rotor damage conditions.
Daigo FUJIWARA
doaj +1 more source
SmartBot, EarlyView.Ionogels dynamically and functionally couple ionic liquids with polymer networks, enabling multiscale programmable deformation and motion under electrical, magnetic, optical, thermal, humidity, and chemical stimuli. This article systematically elucidates the constituent components, structural design, and multiscale actuation mechanisms of ionogel ...
Dezhou Cao +5 more
wiley +1 more source
ASPECTS REGARDING INTERLAMINAR STRESS DISTRIBUTION ON THE COMPOSITE LAMINATED SKIN OF A TAIL ROTOR BLADE EXPOSED TO AERODYNAMIC FORCES [PDF]
Annals: Series on engineering sciences (Academy of Romanian Scientists), 2020 In realizing a high-performance composite material, it is important to take into consideration all the factors that influence the structural response of the component when exposed to service conditions.
Andrei - Daniel VOICU +2 more
doaj