Results 121 to 130 of about 504,597 (395)
Performance Analysis of Hybrid Optical–Acoustic AUV Swarms for Marine Monitoring
Future Internet, 2018 Autonomous Underwater Vehicles (AUVs) are assuming an important role in the monitoring and mapping of marine ecosystems, especially for their ability to explore harsh environments.
Chiara Lodovisi +3 more
doaj +1 more source
Recent Advances in Highly Luminescent Carbon Dots
Advanced Functional Materials, EarlyView.Here, a comprehensive summary of the advancements is provided in highly luminescent carbon dots across various luminescence bands since their discovery in 2004. It systematically covers the synthesis, structural characteristics, preparation strategies, and essential purification of these carbon dots, along with their applications in efficient ...
Yupeng Liu +6 more
wiley +1 more source
WQT and DG-YOLO: towards domain generalization in underwater object detection [PDF]
arXiv, 2020 A General Underwater Object Detector (GUOD) should perform well on most of underwater circumstances. However, with limited underwater dataset, conventional object detection methods suffer from domain shift severely. This paper aims to build a GUOD with small underwater dataset with limited types of water quality.
arxiv
Advanced Functional Materials, EarlyView.Emulating nature's unparalleled engineering, this work introduces butterfly‐inspired hybrid composites for high‐performance transportation and defense sectors. Leveraging biomimicry, these lightweight composites feature butterfly leg‐inspired hierarchical fibrous assemblies and butterfly wing‐inspired sandwich‐structured architecture, to achieve ...
Nello D. Sansone +7 more
wiley +1 more source
IET Radar, Sonar & NavigationThe low frequency line spectrum noise radiated by ships has strong stability and is difficult to eliminate, which is the key information required for passive signal detection.
He Li +4 more
doaj +1 more source
Enhancement of Low Contrast Images Based on Effective Space Combined with Pixel Learning
Information, 2017 Images captured in bad conditions often suffer from low contrast. In this paper, we proposed a simple, but efficient linear restoration model to enhance the low contrast images.
Gengfei Li, Guiju Li, Guangliang Han
doaj +1 more source
Advanced Functional Materials, EarlyView.This paper introduces a flexible neural probe with integrated micro‐OLEDs on a flexible substrate for the first time, featuring 8 micro‐OLEDs and recording electrodes for optogenetics. It uses advanced encapsulation and an IAI anode for durability, emitting 470 nm light for ChR2 activation, enabling high‐resolution, minimally invasive stimulation ...
Somin Lee +8 more
wiley +1 more source
Shape‐Stabilization of Phase Change Materials with Carbon‐Conscious Poly(hydroxy)Urethane Foams
Advanced Functional Materials, EarlyView.Poly(hydroxy)urethane (PHU) foam, derivable from carbon dioxide (CO2) and bio‐based resources, is a promising material platform for shape‐stabilizing phase change materials (PCMs). We demonstrate the encapsulation of both paraffins and calcium chloride hexahydrate in PHU foam, achieving 48 stable thermal cycles by introducing 5 wt.% barium carbonate ...
Minjung Lee +5 more
wiley +1 more source
MIMO Underwater Acoustic Communications in Ports and Shallow Waters at Very High Frequency
Journal of Sensor and Actuator Networks, 2013 Hermes is a Single-Input Single-Output (SISO) underwater acoustic modem that achieves very high-bit rate digital communications in ports and shallow waters. Here, the authors study the capability of Hermes to support Multiple-Input-Multiple-Output (MIMO)
Gaultier Real +2 more
doaj +1 more source
3D Surface Reconstruction of Underwater Objects [PDF]
arXiv, 2012 In this paper, we propose a novel technique to reconstruct 3D surface of an underwater object using stereo images. Reconstructing the 3D surface of an underwater object is really a challenging task due to degraded quality of underwater images. There are various reason of quality degradation of underwater images i.e., non-uniform illumination of light ...
arxiv