Results 51 to 60 of about 27,872 (309)

Lift Enhancement of Tiltrotor Wing Using a Gurney Flap

open access: yesInternational Journal of Aerospace Engineering, 2022
A numerical investigation was undertaken to explore the lift-enhancing characteristics of the Gurney flap on a tiltrotor wing. The heights of Gurney flaps range from 1 to 4% wing chord lengths.
Hao Chen, Bo Chen
doaj   +1 more source

Numerical Investigation of Performance Enhancement of the S809 Airfoil and Phase VI Wind Turbine Blade Using Co-Flow Jet Technology

open access: yesEnergies, 2021
Making full use of wind energy can effectively alleviate the global energy shortage and environment contamination problems. Nevertheless, how to significantly improve the performance of the wind turbine airfoil and blade is a crucial issue.
Shunlei Zhang, Xudong Yang, Bifeng Song
doaj   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

open access: yesFEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto   +3 more
wiley   +1 more source

Aerodynamics of Golf Balls in Still Air

open access: yesProceedings, 2018
The following considers lift and drag measurements of 13 production golf ball models propelled through still air in a laboratory setting. The balls travelled at speeds ranging from 18 m/s to 91 m/s and spin ranging from 1500 rpm to 4500 rpm.
Bin Lyu   +3 more
doaj   +1 more source

Modulation of Homer1 EVH1 domain internal dynamics by putative autism‐associated mutations

open access: yesFEBS Letters, EarlyView.
The putative autism‐associated M65I and S97L variants of the EVH1 domain of the postsynaptic scaffold protein Homer1 do not exhibit substantial changes in their overall structure or partner binding. Both of them, but especially the M65I variant, show altered internal dynamics relative to the wild‐type domain on the μs‐ms timescale, indicated by the ...
Fanni Farkas   +6 more
wiley   +1 more source

The dynamic lift coefficient curve of two flaps.

open access: yes, 2019
The dynamic lift coefficient curve of two flaps.
Hongyu Shi (3611147)   +5 more
core   +1 more source

Enhancing the Efficiency of Horizontal Axis Wind Turbines Through Optimization of Blade Parameters

open access: yesJournal of Engineering
In this research, we delve into the promising potential of horizontal axis wind turbines to effectively meet the electricity needs of developing countries.
Hossein Seifi Davari   +3 more
doaj   +1 more source

Lifting of Coefficients for Chow Motives of Quadrics

open access: yes, 2010
We prove that the natural functor from the category of Chow motives of smooth projective quadrics with integral coefficients to the category with coefficients modulo 2 induces a bijection on the isomorphism classes of objects.
openaire   +2 more sources

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

open access: yesFEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Lift Coefficient Curves for Predicting Response Using Shear7

open access: yes, 2010
Vortex-Induced Vibration (VIV) is a complex, non-linear fluid-structure interaction problem with important consequences for offshore risers, tendons and other tubulars.
Johnny Vogiatzis, Vikas Jhingran
core   +1 more source

Home - About - Disclaimer - Privacy