Results 81 to 90 of about 4,375,078 (278)

In Situ Formation of a Highly Selective Nickel Single Atom Catalyst for Electrochemical CO2 Reduction to CO

open access: yesAdvanced Materials, EarlyView.
Development of a novel method for synthesizing Ni single atom catalysts for highly selective electrochemical CO2 reduction in situ. This catalyst achieves 100% selectivity for CO and is formed in an industrially relevant cell architecture. Using post‐mortem XRD, STEM, and EDS and operando XAS, the identity of the active site and the mechanism behind ...
Ian Street   +5 more
wiley   +1 more source

An Underwater Target Recognition Method Based on Feature Fusion and Balanced Ensemble Transfer Learning

open access: yesJournal of Marine Science and Engineering
In underwater target recognition scenarios, challenges arise as a result of the limited representational capability of acoustic images with single time-frequency features and poor recognition performance due to class imbalances in sample numbers.
Haoqian Zhang   +3 more
doaj   +1 more source

A Survey of Underwater Acoustic Target Recognition Methods Based on Machine Learning

open access: yes, 2023
Underwater acoustic target recognition (UATR) technology has been implemented widely in the fields of marine biodiversity detection, marine search and rescue, and seabed mapping, providing an essential basis for human marine economic and military ...
Lu Chen   +3 more
core   +1 more source

A Critical Call for Mechanistic Investigations of Metal‐Bacteria Interactions

open access: yesAdvanced Materials, EarlyView.
It is well established that the antibacterial properties of metals have tremendous importance for bioengineering applications. What is not as appreciated, however, is the reproducibility crisis in this field's vast literature. In this perspective, we highlight this reproducibility problem, discuss its sources, and suggest solutions towards focused ...
J. Rackwitz   +9 more
wiley   +1 more source

Space-Time Frequency Feature Fusion Recognition Method for Underwater Targets Based on Meta-Learning

open access: yes水下无人系统学报
To improve poor relative bearing adaptability and weak resistance to new types of interference in active sonar target recognition, this paper elaborated on the physical mechanism of active sonar target information perception from wave equation theory ...
Xiaochun LIU   +4 more
doaj   +1 more source

Vitamin C‐Induced Photo‐Redox Threshold Enables High‐Fidelity Volumetric Printing of Collagen

open access: yesAdvanced Materials, EarlyView.
Tomographic volumetric printing (TVP) of native proteins is limited by uncontrolled background crosslinking. Here, vitamin C is introduced as a biocompatible redox regulator to establish a tunable nonlinear polymerization threshold response for TVP.
Bin Wang   +5 more
wiley   +1 more source

Research on Improved VGG-16 Model Based on Transfer Learning for Acoustic Image Recognition of Underwater Search and Rescue Targets

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The advancement of underwater search and rescue technology has made target image recognition crucial for improving efficiency and accuracy in side-scan sonar operations.
Xu Liu   +5 more
doaj   +1 more source

Programmable Microgel Degradation in Dynamic Granular Hydrogels Guides Extracellular Matrix Assembly During Tissue Repair

open access: yesAdvanced Materials, EarlyView.
This study reports on the chemical modification of hyaluronic acid to create hydrogels with hydrolytic degradability ranging from 2–28 days. Granular hydrogels that undergo timed degradation to increase porosity enhance cell invasion and provisional ECM remodeling in a muscle injury model, leading to reduced fibrosis and improved regeneration ...
Zhiyuan Chen   +7 more
wiley   +1 more source

QiandaoEar22: a high-quality noise dataset for identifying specific ship from multiple underwater acoustic targets using ship-radiated noise

open access: yesEURASIP Journal on Advances in Signal Processing
Target identification of ship-radiated noise is a crucial area in underwater target recognition. However, there is currently a lack of multi-target ship datasets that accurately represent real-world underwater acoustic conditions.
Xiaoyang Du, Feng Hong
doaj   +1 more source

Neural Edge Histogram Descriptors for Underwater Acoustic Target Recognition

open access: yesOCEANS 2025 Brest
6 pages, 5 figures.
Atharva Agashe   +3 more
openaire   +2 more sources

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