Results 41 to 50 of about 292,829 (130)

The predictive functional control and the management of constraints in GUANAY II autonomous underwater vehicle actuators [PDF]

open access: yes, 2018
Autonomous underwater vehicle control has been a topic of research in the last decades. The challenges addressed vary depending on each research group's interests.
Gauthier Sellier, Alain   +2 more
core   +2 more sources

A low-cost hyperspectral scanner for natural imaging and the study of animal colour vision above and under water [PDF]

open access: yes, 2019
Hyperspectral imaging is a widely used technology for industrial and scientific purposes, but the high cost and large size of commercial setups have made them impractical for most basic research.
Baden, T, Nevala, N E
core   +1 more source

Effects of Palm Angles in Sculling on the Variation of Underwater Weighting

open access: yes, 2013
In this study, the researcher tried to analyse the effects of various palm angles in sculling on the variation of underwater weighting. An experiment was conducted on the study subjects of 14 males with life guard licences issued by the Korean Red Cross,
Hyo-Taek Lee, Yong-Jae Kim
semanticscholar   +1 more source

Performance of copper azole treated softwoods exposed to marine borers

open access: yesMaderas: Ciencia y Tecnología, 2016
Wooden material has been used for shipbuilding and structural purposes in the marine environment since ancient times. Wood being used in the sea water can be damaged by marine wood boring organisms, which can turn marine wooden structures unserviceable ...
Hüseyin Sivrikaya   +4 more
doaj  

Spectral signatures of photosynthesis II: coevolution with other stars and the atmosphere on extrasolar worlds

open access: yes, 2007
As photosynthesis on Earth produces the primary signatures of life that can be detected astronomically at the global scale, a strong focus of the search for extrasolar life will be photosynthesis, particularly photosynthesis that has evolved with a ...
Antígona Segura   +12 more
core   +2 more sources

The urban lives of green sea turtles: Insights into behavior in an industrialized habitat using an animal‐borne camera

open access: yesEcology and Evolution
The cryptic and aquatic life histories of sea turtles have made them a challenging group to directly observe, leaving significant knowledge gaps regarding social behavior and fine‐scale elements of habitat use. Using a custom‐designed animal‐borne camera,
Cameron M. Mullaney   +4 more
doaj   +1 more source

Scientific divers quantify first known outbreaks of cold-water coral disease [PDF]

open access: yes, 2009
Coral diseases are widely reported in the tropics but the first incidence of cold-water coral disease was not noted until 2002 when divers recorded an outbreak at 10-28 m depth off Lundy in a NE Atlantic marine protected area.
Hall-Spencer, J, Hiscock, K, Munn, C
core  

Marine Wireless Big Data: Efficient Transmission, Related Applications, and Challenges

open access: yes, 2017
The vast volume of marine wireless sampling data and its continuously explosive growth herald the coming of the era of marine wireless big data. Two challenges imposed by these data are how to fast, reliably, and sustainably deliver them in extremely ...
Jiang, Tao   +3 more
core   +1 more source

The threat to life from Eta Carinae and gamma ray bursts [PDF]

open access: yes, 2001
Eta Carinae, the most massive and luminous star known in our galaxy, is rapidly boiling matter off its surface. At any time its core could collapse into a black hole, which may result in a gamma-ray burst (GRB) that can devastate life on Earth ...
Dar, Arnon, De Rujula, A.
core   +1 more source

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