Results 71 to 80 of about 210,996 (288)

Fluorine‐Free Soft Nanocomposites for High‐Speed Liquid Impact Repellence

open access: yesAdvanced Functional Materials, EarlyView.
Fluorine‐free soft nanocomposite coatings are developed using silicone oil‐mediated mechanical‐stiffness control, enabling ‘dry’ liquid‐repellent surfaces that resist high‐speed water jet impacts up to ∼60 m/s. By tuning nanoparticle loading and oil content, the coatings also achieve >90% optical transparency, amphiphobicity with impact resistance to ...
Priya Mandal   +4 more
wiley   +1 more source

An Efficient Pyramid Transformer Network for Cross-View Geo-Localization in Complex Terrains

open access: yesDrones
Unmanned aerial vehicle (UAV) self-localization in complex environments is critical when global navigation satellite systems (GNSSs) are unreliable. Existing datasets, often limited to low-altitude urban scenes, hinder generalization.
Chengjie Ju   +3 more
doaj   +1 more source

Facial nerve injury in children with head trauma and modern rehabilitation therapy

open access: yesUkrainian Neurosurgical Journal, 2006
104 cases of facial nerve injury in children with head trauma were studied. The clinical signs difference in children of different age and the pyramid of tempore bone fractures peculiarities are represented.
G. A. Kevorkov, V. N. Zhdanova
doaj   +1 more source

Research on Chinese traditional opera costume recognition based on improved YOLOv5

open access: yesHeritage Science, 2023
In order to protect the cultural heritage of opera costumes, establish visual labels for opera costumes, accelerate the establishment of a database for opera costumes, and increase the dissemination of opera culture, we propose an improved You Only Look ...
Kaixuan Liu, Kai Lin, Chun Zhu
doaj   +1 more source

3D Well-composed Polyhedral Complexes [PDF]

open access: yes, 2014
A binary three-dimensional (3D) image $I$ is well-composed if the boundary surface of its continuous analog is a 2D manifold. Since 3D images are not often well-composed, there are several voxel-based methods ("repairing" algorithms) for turning them ...
Gonzalez-Diaz, Rocio   +2 more
core  

A Holographic Diffuser Generalised Optical Differentiation Wavefront Sensor

open access: yes, 2017
The wavefront sensors used today at the biggest World's telescopes have either a high dynamic range or a high sensitivity, and they are subject to a linear trade off between these two parameters.
Bergomi, Maria   +14 more
core   +1 more source

Gourd‐Inspired Design of Unit Cell with Multiple Gradients for Physiological‐Range Pressure Sensing

open access: yesAdvanced Functional Materials, EarlyView.
Gourd‐shaped micro‐dome arrays with coordinated modulus, conductivity, and geometric gradients co‐optimize sensitivity and linearity in piezoresistive tactile sensors. Under pressure, a solid upper dome embeds into a porous lower dome, triggering rapid contact‐area growth and series‐to‐parallel conduction, enabling unsaturated, intensity‐resolved ...
Jiayi Xu   +6 more
wiley   +1 more source

A Target Tracking Method Based on a Pyramid Channel Attention Mechanism

open access: yesSensors
To enhance the tracking performance of transformer-based trackers in complex scenes, we propose a novel visual object tracking method that incorporates three key components: a pyramid channel attention mechanism, a hierarchical cross-attention structure,
Dongxuan Zhao   +5 more
doaj   +1 more source

Self‐Powered Permeable Electronic Dressing for Exudate Management, Electrostimulation and Drug Delivery in Chronic Wound Healing

open access: yesAdvanced Functional Materials, EarlyView.
This study develops a self‐powered permeable electronic dressing (SPED) that synergistically integrates exudate management, electrical stimulation, and on‐demand drug delivery. The dressing effectively absorbs exudate while demonstrating potent antibacterial activity and accelerated tissue regeneration in diabetic mouse models, thereby promoting ...
Jiaheng Liang   +12 more
wiley   +1 more source

Design principles for rapid folding of knotted DNA nanostructures

open access: yesNature Communications, 2016
Driven by complementary base pairing, artificial single-chain DNA is capable of forming complex 3D architectures if an appropriate folding pathway can be realised.
Vid Kočar   +7 more
doaj   +1 more source

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