Results 61 to 70 of about 73,280 (245)
Advanced Robotics Research, EarlyView.This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska +2 more
wiley +1 more source
Transitional separation bubbles and unsteady aspects of aerofoil stall [PDF]
, 2008 A time-accurate solution method for the coupled potential flow and integral boundary-layer equations is used to study aerofoils near stall, where laboratory experiments have shown high-amplitude low-frequency oscillations.
Sandham, N.D.
core +1 more source
Accurate RANS Simulation of Wind Turbine Stall by Turbulence Coefficient Calibration
Applied Sciences, 2018 Stall, a complex phenomenon related to flow separation, is difficult to be predicted accurately. The motivation of the present study is to propose an approach to improve the simulation accuracy of Reynolds Averaged Navier–Stokes equations (RANS ...
Wei Zhong +3 more
doaj +1 more source
Advanced Robotics Research, EarlyView.Automated poultry processing lines still rely on humans to lift slippery, easily bruised carcasses onto a shackle conveyor. Deformability, anatomical variance, and hygiene rules make conventional suction and scripted motions unreliable. We present ChicGrasp, an end‐to‐end hardware‐software co‐designed imitation learning framework, to offer a ...
Amirreza Davar +8 more
wiley +1 more source
A study of rotating stall in a vaneless diffuser of radial flow pump [PDF]
, 2018 Rotating stall in a vaneless diffuser of radial flow pump is studied. The measurements consist of: (i) unsteady pressure measurements delivered by two microphones; and (ii) nine steady pressure taps mounted in one radial line to measure the pressure ...
DAZIN, Antoine +7 more
core +1 more source
Advanced Science, EarlyView.The pre‐regenerative vascular niche (PVN) is essential for nerve repair, yet its endothelial blueprint remains unclear. We identified angiogenic ECs (AECs) as the dominant pre‐regenerative subset and found that antler blood–derived exosomes (AB‐EXO) promote repair via IMP3.
Jinsheng Huang +11 more
wiley +1 more source
Thickness effect of Naca foils on hydrodynamic global parameters, boundary layer states and stall establishment [PDF]
, 2010 The present study investigates experimentally the hydrodynamic behavior of 2D NACA (15, 25, 35%) symmetric hydrofoils at Reynolds number 0.5 106 . A particular attention is paid on the hysteretic behavior at static stall angle and a detailed cartography
Billard, Jean-Yves +3 more
core +1 more source
Structural Colors from Modulated Topological Defects in Molecular Smectic Liquid Crystals
Advanced Science, EarlyView.Rather than using dyes and pigments, nature produces the colors of some butterflies and beetles through optical interference phenomena. This study describes an original biomimetic strategy exploiting the spontaneous formation of modulated linear defects in thin films of 8CB, a common molecular liquid crystal.
Camille N. Mahyaoui +7 more
wiley +1 more source
Leading-Edge Roughness Affecting Diamond-Wing Aerodynamic Characteristics
Aerospace, 2018 Diamond wing configurations for low signature vehicles have been studied in recent years. Yet, despite numerous research on highly swept, sharp edged wings, little research on aerodynamics of semi-slender wings with blunt leading-edges exists. This paper
Andrei Buzica +3 more
doaj +1 more source
Rotating Stall in Vaneless Diffusers of Centrifugal Turbomachines [PDF]
, 1992 P(論文)The operating ranges of turbomachines are limited by their unstable characteristics at low flow rate. Surge and rotating stall/stall are main causes of the unsteadiness and many studies on those were carried out.
42256, [ツル]崎, 展
core