Results 21 to 30 of about 811,380 (302)

Investigation of passive flow control techniques to enhance the stall characteristics of a microlight aircraft [PDF]

, 2013
This report investigates the enhancement of aerodynamic stall characteristics of a Skyranger microlight aircraft by the use of passive flow control techniques, namely vortex generators and turbulators.
A. Pope, C. Velte, F. Lua, G. Tang, J. Lin, L. Shui, M. Hepperle, M. Koike, S. Selvam, T. Chong   +9 more
core   +1 more source

Functional correlates of optic flow motion processing in Parkinson’s disease [PDF]

, 2014
The visual input created by the relative motion between an individual and the environment, also called optic flow, influences the sense of self-motion, postural orientation, veering of gait, and visuospatial cognition.
Cronin-Golomb, Alice, Norton, Daniel J., Putcha, Deepti, Rosen, Maya L., Ross, Robert S., Somers, David C., Stern, Chantal E.   +6 more
core   +5 more sources

Comparative efficacy of passive and mechanical fan-pad cooling system for microclimate modification and welfare in broiler production

Indian Journal of Animal Sciences, 2016
Efficacy of passive cooling vis-à-vis mechanical fan-pad cooling system was assessed for microclimate modification to alleviate heat stress and improving growth performance and welfare of broilers. Cooling treatments comprised of Tc (control without any
S S CHIB, A SHARMA, Y SINGH, A P S SETHI, A L SAINI, C SINGH   +5 more
doaj   +1 more source

Experimental Aerodynamics of a Small Fixed-Wing Unmanned Aerial Vehicle Coated with Bio-Inspired Microfibers Under Static and Dynamic Stall

Aerospace
A passive flow control technique in the form of microfiber coatings with a diverging pillar cross-section area was applied to the wing suction surface of a small tailless unmanned aerial vehicle (UAV). The coatings are inspired from ‘gecko feet’ surfaces,
Dioser Santos, Guilherme D. Fernandes, Ali Doosttalab, Victor Maldonado   +3 more
doaj   +1 more source

Microfluidic Passive Flow Regulatory Device with an Integrated Check Valve for Enhanced Flow Control

Micromachines, 2019
A passive microvalve has appealing advantages in cost-effective and miniaturized microfluidic applications. In this work, we present a passive flow regulatory device for enhanced flow control in a microfluidic environment.
Xinjie Zhang, Zhenyu Zhang
doaj   +1 more source

Passive flow control study in a convoluted intake using Stereo Particle Image Velocimetry [PDF]

, 2016
The ability of vortex generators (VG) to reduce the unsteady distortion at the exit plane of an S-duct (AIP) is investigated. The 3 components of the velocity at the AIP were measured using a Stereo Particle Velocimetry system with high spatial ...
Garnier, Eric, Gil-Prieto, Daniel, MacManus, David G., Tanguy, Geoffrey, Zachos, Pavlos K.   +4 more
core   +1 more source

Advances in Flow Control Methods for Pump-Stall Suppression: Passive and Active Approaches

Energies
This article provides a comprehensive review of key approaches to suppressing stall flow in pumps, offering insights to enhance pump performance and reliability.
Hongbo Zhao, Xiangkai Zhou, Long Meng, Xuejin Zhu, Chengqi Mou, Peijian Zhou   +5 more
doaj   +1 more source

Carcinomas and Carcinoid Tumors of the Lungs and Bronchi in Children and Adolescents: The EXPeRT Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Primary lung carcinomas and bronchial carcinoid tumors (BC) are very rare malignancies in childhood. While typical BC and mucoepidermoid carcinomas are mostly low‐grade, localized tumors with a more favorable prognosis than in adults, necessitating avoidance of overtreatment, adenocarcinomas of the lung are often diagnosed at advanced disease ...
Michael Abele, Calogero Virgone, Michaela Kuhlen, Sabine Irtan, Yves Reguerre, Malgorzata Krawczyk, Ewa Bien, Tal Ben‐Ami, Maja Cesen, Ricardo Lopez‐Almaraz, Andrea Ferrari, Gianni Bisogno, Dominik T. Schneider, Abbas Agaimy, Constantin Lapa, Hubert Ducou le Pointe, Rainer Claus, Catherine Daniel, Ines B. Brecht, Daniel Orbach   +19 more
wiley   +1 more source

Enhancing Flow Separation Control Using Hybrid Passive and Active Actuators in a Matrix Configuration

Aerospace
Efficient control of flow separation holds significant economic promise. This study investigates flow separation mitigation using an experimental platform featuring a combination of passive and active actuators arranged in a matrix configuration.
Songqi Li, Ping Zhang
doaj   +1 more source

Effects of Active and Passive Control Techniques on Mach 1.5 Cavity Flow Dynamics

International Journal of Aerospace Engineering, 2017
Supersonic flow over cavities has been of interest since 1960s because cavities represent the bomb bays of aircraft. The flow is transient, turbulent, and complicated. Pressure fluctuations inside the cavity can impede successful weapon release.
Selin Aradag, Kubra Asena Gelisli, Elcin Ceren Yaldir   +2 more
doaj   +1 more source