Results 91 to 100 of about 386,741 (313)

Structural Analysis of a Dragonfly Wing

open access: yes, 2010
Dragonfly wings are highly corrugated, which increases the stiffness and strength of the wing significantly, and results in a lightweight structure with good aerodynamic performance.
Jongerius, S.R.   +3 more
core   +1 more source

Ultrasmall High‐Entropy Materials: Nanoscale Effects, Synthesis, and Mechanistic Insights

open access: yesAdvanced Functional Materials, EarlyView.
This review article focuses on sub‐10 nm high‐entropy materials that combine nanoscale design with complex compositions for next‐generation applications. ABSTRACT Ultrasmall high‐entropy nanomaterials (USHENMs, <10 nm) merge multicomponent chemistry with size‐dependent effects, forming a distinct class of materials with unprecedented properties.
Yueyue He   +5 more
wiley   +1 more source

Optimal design of a composite wing structure for a flying-wing aircraft subject to multi-constraint [PDF]

open access: yes, 2012
This thesis presents a research project and results of design and optimization of a composite wing structure for a large aircraft in flying wing configuration.
Xu, Rongxin.
core  

Avian Wing Proportions and Flight Styles: First Step towards Predicting the Flight Modes of Mesozoic Birds [PDF]

open access: yes, 2011
We investigated the relationship between wing element proportions and flight mode in a dataset of living avian species to provide a framework for making basic estimates of the range of flight styles evolved by Mesozoic birds.
Wang Xia   +13 more
core   +1 more source

Prediction of Wing Aerodynamic Performance in Rain Using Neural Net

open access: yesJournal of Measurement Science and Instrumentation, 2011
A new method for prediction of wing aerodynamic performance in rain condition was presented.Three-and four-layer artificial neural networks based on improved algorithm for error Back Propagation(BP)network were respectively built.Detailed approaches to ...
Rui-min ZHANG, Yi-hua CAO
doaj  

Geometric Morphometric Characterization of Isolated Colonies of Honeybees (Apis mellifera intermissa) in Northern Algeria

open access: yesBiology and Life Sciences Forum
This study investigates morpho-geometric variations in wing conformations among honeybee (Apis mellifera L.) populations in Algeria, focusing on Apis mellifera intermissa in the northern zone.
Radjaa Khedim   +2 more
doaj   +1 more source

Reduced Graphene Oxide Transparent Electrodes Enabling Compact Soft Tunable Lenses

open access: yesAdvanced Functional Materials, EarlyView.
By spray‐coating an elastomeric membrane with reduced graphene oxide (rGO) at various surface densities, elastomeric actuators are manufactured. Electro‐mechano‐optical characterizations show the suitability of rGO as an effective material for compliant, semi‐transparent electrodes, enabling soft electrically tunable lenses with a compact form factor ...
Giacomo Sasso   +4 more
wiley   +1 more source

Aqueous Two‐Phase Bioinks for Discrete Packing and Compartmentalization of 3D Bioprinted Cells

open access: yesAdvanced Healthcare Materials, EarlyView.
Aqueous two‐phase systems (ATPS) enable the formation of biomimetic interfaces crucial for tissue engineering. However, clinical translation remains limited by the challenge of precisely controlling cellular compartmentalization. Here, we developed ATPS biomaterial inks for 3D bioprinting allowing tuneable droplet formation via NaCl modulation.
Martina Marcotulli   +17 more
wiley   +1 more source

Experimental study of the vortex system generated by a Formula 1 front wing [PDF]

open access: yes, 2007
This thesis describes the research undertaken on the behaviour of the vortex system generated by a Formula 1 front wing, as it travels about a rotating wheel.
Pegrum, Jonathan Mark
core   +1 more source

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