Results 71 to 80 of about 64,260 (282)
A Straight-bladed Vertical Axis Wind Turbine with a Directed Guide Vane Row
Journal of Fluid Science and Technology, 2008 A straight-bladed vertical axis wind turbine with a directed guide vane row has been proposed in order to enhance its torque. The experimental study of the proposed wind turbine was carried out by a wind tunnel with an outlet diameter of 1.8m. The tested
Manabu TAKAO +4 more
doaj +1 more source
Acoustic test of a model rotor and tail rotor: Results for the isolated rotors and combined configuration [PDF]
Acoustic data from a model scale main rotor and tail rotor experiment in the NASA Langley 14 by 22 Foot Subsonic Tunnel are presented for the main rotor and trail rotor in isolation and for the two rotors operating together. Results for the isolated main
Burley, C. L. +2 more
core +1 more source
Cytoskeleton, EarlyView.ABSTRACT Microtubules are noncovalent polymers assembled from α/β tubulin dimers. Their structure, dynamics and interaction with effectors are regulated through the expression of diverse tubulin isotypes and chemically diverse posttranslational modifications, also known as the “tubulin code.” Understanding the biophysical correlates between tubulin ...
Jiayi Chen +2 more
wiley +1 more source
Aerodynamic characteristics of a 1/6-scale model of the rotor systems research aircraft with the rotors removed [PDF]
A wind-tunnel investigation was conducted to refine the aerodynamic characteristics of the rotor systems research aircraft. For the investigation, a 1/6-scale model without a main rotor or a tail rotor was used.
Freeman, C. R. +2 more
core +1 more source
Separation of Main and Tail Rotor Noise Sources from Ground-Based Acoustic Measurements Using Time-Domain De-Dopplerization [PDF]
, 2009 A new method of separating the contributions of helicopter main and tail rotor noise sources is presented, making use of ground-based acoustic measurements.
Greenwood, Eric II, Schmitz, Fredric H.
core +1 more source
Quantification of rheological parameters in deep‐sea mining plumes
Deep Underground Science and Engineering, EarlyView.This study explores the variations in rheological properties observed during the propagation of deep‐sea mining plumes, utilizing rheological test data obtained from kaolin clay plumes. Subsequently, taking into account the differences in sediment properties, the effects of clay content and clay mineral composition on the rheological parameters of ...
Xiaolei Liu +3 more
wiley +1 more source
Vision-Based Fuzzy 2D Motion Control of a Model Helicopter [PDF]
, 2006 ©2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or distribution to servers or lists, or to reuse any ...
Demirli, K. +2 more
core +1 more source
Developmental Dynamics, EarlyView.Abstract Background Mutations in cohesins cause cohesinopathies such as Cornelia de Lange Syndrome (CdLS) and Roberts Syndrome (RBS). Prior findings demonstrate that Esco2 (a cohesin activator) and Smc3 (a core cohesin subunit) regulate the CRL4 E3 ubiquitin ligase. SMC3 mutations, however, account for a small percentage of CdLS.
Annie C. Sanchez +4 more
wiley +1 more source
Green Maintenance Technology for Large Area Damage of Composite Tail Rotor Blade
Engineering ProceedingsBased on the analysis of the damage location, damage size, product layering structure, and internal filling structure of the composite tail rotor blade, the damage maintenance technical scheme was initially determined.
Miao Ren, Qidi Liu, Nan Lv, Lili Li
doaj +1 more source
The effectiveness of the EPNL procedure in quantifying helicopter blade slap and tail rotor noise heard on approach some distance from the flyover position is addressed.
Leverton, J. W. +2 more
core +1 more source