Results 91 to 100 of about 5,789,252 (266)

Design and Implementation of a ZigBee-based Emulation Platform for Underwater Acoustic Sensor Networks

, 2016
Due to the hardware cost and site constraints, the underwater transmission cannot be easily achieved in the terrestrial environment. In addition, network simulators also cannot precisely evaluate the network performance.
Chen, Yen-Da;Chuang, Chia;Shih, Kuei-Ping
core   +1 more source

Piezoelectric Nanocomposite Hydrogel for Wireless Neural Stimulation and Tissue Augmentation

Advanced NanoBiomed Research, EarlyView.
A cell/tissue supporting piezoelectric hydrogel system (PZ‐gel) that incorporates ferroelectric, pyroelectric, and piezoelectric ceramic material barium titanate into an alginate/carboxymethyl chitosan hydrogel. The PZ‐gel can be sonoactivated for wireless neural cell and tissue stimulation, with the potential to be used as a stimulatory cell substrate
Mohammad Mohammadi, Eva Tomaskovic‐Crook, Peter C. Innis, Jeremy M. Crook   +3 more
wiley   +1 more source

Value of Information Based Data Retrieval in UWSNs

Sensors, 2018
Sensor nodes in underwater sensor networks may acquire data at a higher rate than their ability to communicate over underwater acoustic channels. Autonomous underwater vehicles may mitigate this mismatch by offloading high volumes of data from the sensor
Fahad Ahmad Khan, Sehar Butt, Saad Ahmad Khan, Ladislau Bölöni, Damla Turgut   +4 more
doaj   +1 more source

Scaffold‐Free Living Cellular Structure With Omnidirectional Architectures

Advanced NanoBiomed Research, EarlyView.
Hydrogel lumen confinement enables the direct formation of mechanically stable, scaffold‐free cellular filaments under entirely aqueous, phototoxicity‐free conditions. These processable living building blocks support omnidirectional assembly into complex three‐dimensional architectures, providing a simple and versatile platform for scaffold‐free ...
Jing Ma, Shanshan Zhang, Xiaokang Deng, Cheng Qi, Haifeng Dong, Zhou Liu, Si Meng, Tiantian Kong   +7 more
wiley   +1 more source

Energy Harvesting Hybrid Acoustic-Optical Underwater Wireless Sensor Networks Localization [PDF]

, 2017
Underwater wireless technologies demand to transmit at higher data rate for ocean exploration. Currently, large coverage is achieved by acoustic sensor networks with low data rate, high cost, high latency, high power consumption, and negative impact on ...
Al-Naffouri, Tareq Y., Alouini, Mohamed Slim, Nasir Saeed, Alouini, Mohamed-Slim, Abdulkadir Celik, Mohamed-Slim Alouini, Saeed, Nasir, Tareq Y. Al-Naffouri, Celik, Abdulkadir   +8 more
core   +1 more source

Optimizing Strategies for Non‐Invasive Prospection of Settlements in the Intertidal Zone: A Case Study From the Centre of the Drowned Medieval Village of Tolsende (Scheldt Estuary, the Netherlands)

Archaeological Prospection, EarlyView.
ABSTRACT Medieval and early modern drowned villages in the intertidal zone of the Scheldt estuary (the Netherlands) constitute intriguing yet largely understudied components of north‐western Europe's underwater cultural heritage. Despite their high archaeological potential as time capsules of past settlement landscapes, research has remained limited ...
Jan Trachet, Sarah Bäumler, Stefan Krojer, Jeroen Verhegge, Wim De Clercq, Philippe De Smedt, Wouter H. Maes, Bente S. Majchczack, Immo Trinks, Dennis Wilken   +9 more
wiley   +1 more source

Next-generation underwater localization: Artificial Intelligence-based and energy-aware approaches

Applied Ocean Research
Designing accurate, reliable, and energy-efficient localization techniques for underwater acoustic networks is highly challenging due to factors such as large propagation delays, the absence of Global Positioning System (GPS), node mobility, and limited ...
Mainul Islam Chowdhury, Quoc Viet Phung, Iftekhar Ahmed, Walid K. Hasan, Daryoush Habibi   +4 more
doaj   +1 more source

Review on Clustering, Coverage and Connectivity in Underwater Wireless Sensor Networks: A Communication Techniques Perspective

IEEE Access, 2017
With a wide scope to explore and harness the oceanic sources of interest, the field of underwater wireless sensor networks (UWSNs) is attracting a growing interest of researchers.
D. N. Sandeep, Vinay Kumar
doaj   +1 more source

Greedy Routing in Underwater Acoustic Sensor Networks: A Survey

International Journal of Distributed Sensor Networks, 2013
Due to the significant advances of wireless sensor networks (WSNs), researchers are eager to use this technology in the subsea applications. Because of rapid absorption of high radio frequency in the water, acoustic waves are used as communication medium, which pose new challenges, including high propagation delay, high path loss, low bandwidth, and ...
Mohammad Taghi Kheirabadi, Mohd Murtadha Mohamad   +1 more
openaire   +4 more sources

Advanced signal processing techniques for underwater acoustic transmission using steerable transducer arrays [PDF]

The main objective of this research is to design and implement an eight-hydrophone transmitter array for generating bipolar acoustic pulses mimicking those produced by cosmogenic neutrino interaction in sea water.
Ooppakaew, Wichian
core