Results 101 to 110 of about 5,789,252 (266)

Topology control in Heterogeneous Wireless Sensor Network [PDF]

, 2016
Topology of a Wireless Sensor Network determines the connectivity of the wireless network and topology Control is the important technique of extending network lifetime while preserving network connectivity.
Deshmukh, Prashant, Dandekar, Deepak R
core  

Technology Transfer to Underwater Archaeology: The LAHKE Project at the Submerged Neolithic Site of La Marmotta

Archaeological Prospection, EarlyView.
ABSTRACT This document is a report on the field application of non‐invasive geophysical and robotic prospecting methods at the submerged Neolithic site of La Marmotta (Lake Bracciano, Italy), within the LAHKE (LAke Heritage Knowledge and Exploration) project; the study focuses on the practical validation, adaptation and transfer of existing ...
dell' Erba Ramiro, Cupertino Giacomo, Cipollini Angelo, Luciano Blasi, Quattrucci Luca   +4 more
wiley   +1 more source

Underwater Wireless Sensor Networks: How Do Acoustic Propagation Models Impact the Performance of Higher-Level Protocols?

Sensors, 2012
Several Medium Access Control (MAC) and routing protocols have been developed in the last years for Underwater Wireless Sensor Networks (UWSNs). One of the main difficulties to compare and validate the performance of different proposals is the lack of a ...
Jesús Llor, Manuel P. Malumbres
doaj   +1 more source

Balance Transmission Mechanism in Underwater Acoustic Sensor Networks

International Journal of Distributed Sensor Networks, 2015
With the rapid development of underwater acoustic modem technology, underwater acoustic sensor networks (UWASNs) have more applications in long-term monitoring of the deployment area. In the underwater environment, the sensors are costly with limited energy.
Jiabao Cao, Jinfeng Dou, Shunle Dong
openaire   +3 more sources

Surface hydration‐induced damage in tight oil‐bearing sandy conglomerate reservoirs

Deep Underground Science and Engineering, EarlyView.
A series of techniques such as X‐ray diffraction, scanning electron microscopy, energy‐dispersive spectroscopy, conductivity tests, and infrared thermal imaging were used. The key findings are the identification of a two‐stage surface hydration process and the elucidation of the effects of various minerals and elements on the hydration process ...
Anbang Zhao, Shuheng Du, Yuan Zhang, Jinghong Hu, Bo Zhou, Yun Wei   +5 more
wiley   +1 more source

An Adaptive Routing Protocol for Large-Scale Underwater Acoustic Sensor Networks

, 2013
Unlike traditional terrestrial wireless sensor networks (WSNs), underwater acoustic sensor networks (UASNs) utilize acoustic waves to transmit data. However, acoustic waves in UASNs have features of high propagation delay, low bandwidth, and low data ...
Chen, Yen-Da; Lien, Chan-Ying; Wang, Ching-Hung; Shih, Kuei-Ping, Shih, Kuei-Ping   +1 more
core   +1 more source

Remote Sensing for Irrigation Water Management—The State of the Art and Prospects for Near‐Future Operations

Irrigation and Drainage, EarlyView.
ABSTRACT A recent UN report describes many regions as facing ‘water bankruptcy,’ a condition in which available water resources can no longer meet existing demands. In practice, this means irrigation will likely bear the greatest burden of future water‐use reductions, a complicated and fraught decision to make given its critical role in food security ...
Wim G. M. Bastiaanssen, Chris Perry, Royce Dalby, Yasir Mohamed, Xueliang Cai, Poolad Karimi, IJsbrand de Jong, Pasquale Steduto, Marat Beksultanov, Christopher C. M. Neale, David Molden, Waqas Awan, Laarousi Mohamed, Jippe Hoogeveen, Jeff Davids, Nutchanart Sriwongsitanon, P. S. Rao, Roula Bachour, Palitha Bandara, Sophea Chhim, Richard Evans, Tom Lahad, D. Nagesh Kumar, Zakaria Adawy, Devendra Singh Bundela, Kawa Hakzi, Isaya Kisekka, Nicolas Puelma, Alejandro A. Pannunzio, Benjamin Koetz, Mukhiddin Ibragimov   +30 more
wiley   +1 more source

Optimal Clustering in Underwater Wireless Sensor Networks: Acoustic, EM and FSO Communication Compliant Technique

IEEE Access, 2017
With a wide scope for exploration and research, underwater wireless sensor network (UWSN) is a fast growing research area in current scenario. UWSNs need energy efficient designing approach, because underwater sensor nodes are battery driven.
Sadanand Yadav, Vinay Kumar
doaj   +1 more source

Information-carrying based routing protocol for Underwater Acoustic Sensor Network

, 2007
In this paper, we tackle one fundamental problem in Underwater Sensor Networks (UASNs), routing. Aiming at many challenges to the Routing protocol design of UASNs, which are bought by the features of UASNs, such as low bandwidth, high latency, dynamics ...
Yu HB(于海斌), Liang W(梁炜), Liu L(刘琳), Li BX(李邦祥), Che, Chang   +4 more
core  

Impact of reverberation levels on short-range acoustic communication in an underwater swarm sensor network (USSN) and application to transmitter power control

, 2014
The progress of Underwater Swarm Sensor Networks (USSNs) has required the development of new approaches and understanding to short-range mobile acoustic underwater communication.
Gunilla E. Burrowes, Burrowes, Gunilla E., Khan, Jamil Y., Brown, Jason, Jamil Y. Khan, Jason Brown, https://orcid.org/   +6 more
core   +1 more source