Results 51 to 60 of about 151,224 (313)

Applying colour-coded particle image velocimetry to the wake of a delta wing across a wide range of angles of attack

open access: yesJournal of Fluid Science and Technology
The forces acting on a delta wing are predominantly influenced by local flow structures, specifically leading-edge vortices (LEVs). This study applies colour-coded particle image velocimetry (PIV) to quantify wake dynamics and lift generation for a delta
Shūji ŌTOMO   +4 more
doaj   +1 more source

Investigation of wing structure layout of aerospace plane based on the finite element method

open access: yesAdvances in Mechanical Engineering, 2017
The aerospace plane is an innovative kind of reusable aircraft, which is able to reach the low earth orbit flying like the conventional plane. Two kinds of aerospace plane wing structures are designed and parameterized for the delta wing with a strake ...
Yu Wang, Lei Liu, Yu Xing, Zhenbo Yang
doaj   +1 more source

Two distinct E3 ubiquitin ligases have complementary functions in the regulation of delta and serrate signaling in Drosophila. [PDF]

open access: yesPLoS Biology, 2005
Signaling by the Notch ligands Delta (Dl) and Serrate (Ser) regulates a wide variety of essential cell-fate decisions during animal development. Two distinct E3 ubiquitin ligases, Neuralized (Neur) and Mind bomb (Mib), have been shown to regulate Dl ...
Roland Le Borgne   +3 more
doaj   +1 more source

vEMRec: High‐Resolution Volume Electron Microscopy Reconstruction Based on Structure‐Preserving and High‐Fidelity 3D Alignment

open access: yesAdvanced Science, EarlyView.
vEMRec is a frequency‐adaptive computational framework for three‐dimensional alignment in volume electron microscopy. It integrates feature‐based rigid alignment with Gaussian filter‐guided elastic registration to correct rigid misalignments and nonlinear distortions while preserving structural fidelity.
Zhenbang Zhang   +7 more
wiley   +1 more source

Boosting Photo‐Pyroelectric Effect via Tunable Polarization and Interfacial Defect Engineering

open access: yesAdvanced Science, EarlyView.
This study reports Ba(Ti0.85Zr0.15)O3 nanocatalysts with enhanced polarization and oxygen‐vacancy‐rich interfaces for efficient NIR‐II photo‐pyroelectric therapy. Zr doping boosts the pyroelectric coefficient and accelerates polarization switching, while oxygen vacancies improve photothermal conversion and surface reactivity.
Yanli Huang   +13 more
wiley   +1 more source

Impact of and adaptation strategies for sea-level rise on Yangtze River Delta

open access: yesAdvances in Climate Change Research, 2018
The Yangtze River Delta characterized by a dense population and a rapidly developing economy is highly vulnerable to sea-level rise. The data from the China Oceanic Information Network and the Zhejiang Provincial Hydrology Bureau are used to analyze sea ...
Qiu-Shun Wang   +2 more
doaj   +1 more source

Experimental transonic flutter characteristics of two 72 deg-sweep delta-wing models [PDF]

open access: yes
Transonic flutter boundaries are presented for two simple, 72 deg. sweep, low-aspect-ratio wing models. One model was an aspect-ratio 0.65 delta wing; the other model was an aspect-ratio 0.54 clipped-delta wing.
Doggett, Robert V., Jr.   +4 more
core   +1 more source

Variable sweep wing aircraft Patent [PDF]

open access: yes, 1962
Variable aspect ratio and variable sweep delta wing planforms for supersonic ...
Toll, T. A.
core   +1 more source

Hierarchical Artificial Muscle with Nonlinear Elasticity for Antagonistic and Cyclic Robotics

open access: yesAdvanced Science, EarlyView.
We construct hierarchical muscles by plying nylon fibers around a heating wire. The hierarchical muscle shows a J‐shaped passive curve, which shows benefit in antagonistic muscle pair and work accumulation mechanism. We also develop a computational, first‐principle model to understand the physics of both active actuation stroke and passive J‐curve ...
Samuel Tsai   +15 more
wiley   +1 more source

Study of lee-side flows over conically cambered delta wings at supersonic speeds, part 1 [PDF]

open access: yes
An experimental investigation was performed in which surface pressure data, flow visualization data, and force and moment data were obtained on four conical delta wing models which differed in leading-edge camber only.
Watson, Carolyn B., Wood, Richard M.
core   +1 more source

Home - About - Disclaimer - Privacy