Results 31 to 40 of about 29,639 (201)

An Intelligent Bio-Inspired Autonomous Surveillance System Using Underwater Sensor Networks

open access: yesSensors, 2023
Energy efficiency is important for underwater sensor networks. Designing such networks is challenging due to underwater environmental traits that hinder network lifespan extension. Unlike terrestrial protocols, underwater settings require novel protocols
Shadab Khan   +5 more
doaj   +1 more source

An efficient scalable scheduling mac protocol for underwater sensor networks [PDF]

open access: yes, 2018
Underwater Sensor Networks (UWSNs) utilise acoustic waves with comparatively lower loss and longer range than those of electromagnetic waves. However, energy remains a challenging issue in addition to long latency, high bit error rate, and limited ...
Alfouzan, Faisal   +3 more
core   +1 more source

Multi‐Material Additive Manufacturing of Soft Robotic Systems: A Comprehensive Review

open access: yesAdvanced Robotics Research, EarlyView.
This review explores the transformative role of multi‐material additive manufacturing (MMAM) in the development of soft robotic systems. It presents current techniques, materials, and design strategies that enable functionally graded and adaptive structures.
Ritik Raj   +2 more
wiley   +1 more source

Improving Underwater Image Quality Using WZDN Algorithm [PDF]

open access: yesمجلة جامعة النجاح للأبحاث العلوم الطبيعية
In underwater photography, images often suffer from color distortion, haziness, and low visibility due to the scattering of light by water and particles.
Blessa Binolin Pepsi M, Aswin S
doaj   +1 more source

iFO (infrared Fish Observation) – An open source low-cost infrared underwater video system

open access: yesHardwareX, 2020
Underwater video surveillance is an important data source in marine science, e.g. for behaviour studies. Scientists commonly use water resistant ruggedized monitoring equipment, which is cost-intensive and usually limited to visible light.
Andreas Hermann   +2 more
doaj   +1 more source

Energy-Efficient Mobility Prediction Routing Protocol for Freely Floating Underwater Acoustic Sensor Networks

open access: yesFrontiers in Communications and Networks, 2021
Recently, there has been an increasing interest in monitoring and exploring underwater environments for scientific applications such as oceanographic data collection, marine surveillance, and pollution detection.
Ghida Jubran Alqahtani   +1 more
doaj   +1 more source

A Survey of Routing Issues and Associated Protocols in Underwater Wireless Sensor Networks [PDF]

open access: yes, 2017
Underwater Wireless Sensor Network is newly emerging wireless technology in which small size sensors with limited energy, limited memory and bandwidth are deployed in deep sea water and various monitoring operation like tactical surveillance ...
Adnan, Awais   +6 more
core   +3 more sources

Underwater Communications for Video Surveillance Systems at 2.4 GHz

open access: yesSensors, 2016
Video surveillance is needed to control many activities performed in underwater environments. The use of wired media can be a problem since the material specially designed for underwater environments is very expensive. In order to transmit the images and videos wirelessly under water, three main technologies can be used: acoustic waves, which do not ...
Sandra Sendra   +3 more
openaire   +5 more sources

Single‐Cell Profiling Across Immune Tissues and Organs Reveals Immunosenescence Signatures in Male Rhesus Monkeys

open access: yesAdvanced Science, EarlyView.
Single‐cell profiling across bone marrow, spleen, mesenteric lymph, and blood in rhesus monkeys reveals organ Immunosenescence. GZMB rises with age, particularly in cytotoxic and terminally exhausted CD8+ T cells, and BHLHE40 emerges as a key transcription factor enriched across multiple CD8+ subsets, regulating pro‐inflammatory and exhaustion‐related ...
Shengnan Wang   +10 more
wiley   +1 more source

Development of universal software radio peripheral amplifier for underwater acoustic platform using software defined radio [PDF]

open access: yes, 2010
First and foremost, the development of a modem using the USRP has applications in oceanographic monitoring and communication. Improved acoustic connecting would allow more efficient transfer of information between Underwater Acoustic (UWA) equipment such
Kalash, Haydar Sabeeh
core  

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