Results 61 to 70 of about 18,218 (250)

Cteno‐Bot: An Untethered Metachronally Swimming Robot With Magnetoactive Propulsors

Advanced Intelligent Systems, EarlyView.
We present Cteno‐bot, an untethered ctenophore‐inspired robot which swims using metachronally coordinated appendages. A single mechanism controls up to 216 magnetoactive propulsors via a dynamically varying magnetic field. We show that the swimming speed of the robot can be increased without a corresponding increase in power requirement, simply by ...
David J. Peterman, Margaret L. Byron
wiley   +1 more source

A comparative baseline of coral disease in three regions along the Saudi Arabian coast of the central Red Sea.

PLoS ONE, 2021
Coral disease is a growing problem for coral reefs globally and diseases have been linked to thermal stress, excess nutrients, overfishing and other human impacts.
Greta Smith Aeby, Amanda Shore, Thor Jensen, Maren Ziegler, Thierry Work, Christian R Voolstra   +5 more
doaj   +1 more source

Toward personalized healthcare: Advances in two‐dimensional nanomaterial‐based flexible electrochemical sensors for physiological monitoring

BMEMat, EarlyView.
This review provides an overview of the properties, composites and application of two‐dimensional (2D) nanomaterials for wearable electrochemical biosensors. Also, the challenges and future prospects of utilizing 2D nanomaterials in wearable electrochemical biosensor applications are discussed.
Kou Zhang, Lu Han, He‐Qing Cai, Xin‐Yu Xue, Yi‐Fei Song, Wu‐Lin Xin, Ying‐Ze Wang, Peng Liu, Juan Liu   +8 more
wiley   +1 more source

Forecasting Airport Passenger Flows Using Mobile Network Data: Insights for Sustainable Mobility and Strategic Infrastructure Planning

Business Strategy and the Environment, EarlyView.
ABSTRACT Airports are strategic and environmental nodes in global transport systems where rapid passenger growth challenges capacity, sustainability, and resilience. This study uses anonymized mobile network data to analyze and forecast passenger dynamics at Lisbon Airport, Portugal, linking data‐driven insights to sustainable mobility and ...
João Carlos Ferreira, Carlos M. P. Sousa, Marco Esperança, Babak Taheri   +3 more
wiley   +1 more source

Mesophotic animal forests of the Aegean Sea support fish diversity hotspots under high fishing pressure

Ecosphere
Marine animal forests (MAFs) are dense aggregations of habitat‐forming species that constitute essential habitats for diverse taxa including fish. However, the study of MAFs and their associated fauna remains largely skewed to their shallowest occurrence,
J. Jacquemont, M. Kovačić, J. Claudet, E. Périé‐Bardout, G. Bardout, G. Ochoa, L. Bramanti   +6 more
doaj   +1 more source

Growth and longevity of New Zealand black corals

Deep Sea Research Part I: Oceanographic Research Papers, 2020
Abstract Deep-sea corals are an important component of benthic ecosystems, but are potentially very vulnerable to ecological disturbance due to their extreme longevity and slow growth rates. Among the slowest growing genera are the ‘Black Corals’ (Family Antipatharia), which can have lifespans of millennia.
Nicholas T. Hitt, Daniel J. Sinclair, Stewart J. Fallon, Helen L. Neil, Dianne M. Tracey, Aimée Komugabe-Dixson, Peter Marriott   +6 more
openaire   +2 more sources

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Satellite-Observed Black Water Events off Southwest Florida: Implications for Coral Reef Health in the Florida Keys National Marine Sanctuary

Remote Sensing, 2013
A “black water” event, as observed from satellites, occurred off southwest Florida in 2012. Satellite observations suggested that the event started in early January and ended in mid-April 2012.
Brian Lapointe, Ryan H. Smith, Elizabeth M. Johns, Nelson Melo, Chuanmin Hu, Jun Zhao   +5 more
doaj   +1 more source

Upper bound limit analysis of coral reef limestone cavern roof stability incorporating a tension‐shear failure mechanism with tensile‐strength cut‐off

Deep Underground Science and Engineering, EarlyView.
For the roof of coral reef limestone caverns, a novel tension‐shear composite failure mechanism was developed. The most critical tensile crack model was identified using a hybrid optimization algorithm, and the stability of the cavern roof was analyzed accordingly.
Dongsheng Xu, Chenxu Li, Chuantan Hou
wiley   +1 more source

The Structure of Sweeper Tentacles in the Black Coral Antipathes fiordensis

The Biological Bulletin, 1990
Normal tentacles on polyps of the black coral Antipathes fiordensis are less than 2 mm long and display well-defined, wart-like structures, the centers of which are marked by both flagella and microvilli. Both of these microappendages are characteristic of spirocytes, the dominant type of cnidocyte in normal tentacles.
Goldberg, Walter M., Grange, Kenneth R., Taylor, George T., Zuniga, Alicia L.   +3 more
openaire   +4 more sources