Results 361 to 370 of about 504,597 (395)
Some of the next articles are maybe not open access.
British Journal of Orthodontics, 1990
A report is presented of a scuba diver who was unable to dive using a normal commercial mouthpiece due to wearing a fixed orthodontic appliance. The situation was resolved with the provision of a customized mouthpiece of simple design and manufacture.
C M, Jones, J, Graham
openaire +2 more sources
A report is presented of a scuba diver who was unable to dive using a normal commercial mouthpiece due to wearing a fixed orthodontic appliance. The situation was resolved with the provision of a customized mouthpiece of simple design and manufacture.
C M, Jones, J, Graham
openaire +2 more sources
GUDCP: Generalization of Underwater Dark Channel Prior for Underwater Image Restoration
IEEE transactions on circuits and systems for video technology (Print), 2022This letter introduces an underwater image enhancement method to handle low contrast and color cast of underwater images. Firstly, with the help of hierarchical searching technique, we propose a novel backscattered light estimation method.
Zheng Liang +4 more
semanticscholar +1 more source
Proceedings of the Royal Society of London. Series B. Biological Sciences, 1960
The following is an introduction to the differences between water and air as media for propagating sound. What follows and more information on underwater sound can be found in Horton (1957). The main difference between air and water as media for propagating sound lies in their characteristic impedance. This quantity Z
openaire +2 more sources
The following is an introduction to the differences between water and air as media for propagating sound. What follows and more information on underwater sound can be found in Horton (1957). The main difference between air and water as media for propagating sound lies in their characteristic impedance. This quantity Z
openaire +2 more sources
Journal of Obstetric, Gynecologic & Neonatal Nursing, 2013
To determine potential risks and/or benefits of underwater birth for mother and infant.The PubMed, Cochrane Library, EMBASE, and CINAHL online databases were searched for relevant English language articles related to research about underwater birth published from 1966 to April 2013.
openaire +2 more sources
To determine potential risks and/or benefits of underwater birth for mother and infant.The PubMed, Cochrane Library, EMBASE, and CINAHL online databases were searched for relevant English language articles related to research about underwater birth published from 1966 to April 2013.
openaire +2 more sources
Metastable Underwater Superhydrophobicity
Physical Review Letters, 2010Superhydrophobicity is generally considered to be a thermodynamically stable wetting state. The stability of the plastron (the thin air film separating the substrate from the water in the superhydrophobic state) was studied in underwater experiments. The plastron exhibited a rapid decay after a well defined onset time, which was found to be dependent ...
Poetes, Rosa +3 more
openaire +5 more sources
Arthropod Structure & Development, 2004
Lobsters are generalist decapods that evolved in a broad variety of niches in the Northwestern Atlantic. Due to their inherent buoyancy they have acquired adaptations to reduced traction and surge. We have developed a biomimetic robot based on the lobster that features artificial muscle actuators and sensors employing labeled-line codes.
openaire +2 more sources
Lobsters are generalist decapods that evolved in a broad variety of niches in the Northwestern Atlantic. Due to their inherent buoyancy they have acquired adaptations to reduced traction and surge. We have developed a biomimetic robot based on the lobster that features artificial muscle actuators and sensors employing labeled-line codes.
openaire +2 more sources
A Survey of Underwater Optical Wireless Communications
IEEE Communications Surveys and Tutorials, 2017Underwater wireless communications refer to data transmission in unguided water environment through wireless carriers, i.e., radio-frequency (RF) wave, acoustic wave, and optical wave.
Zhaoquan Zeng +4 more
semanticscholar +1 more source
An autonomous underwater vehicle for observation of underwater structure
International Congress Series, 2006Abstract Various kinds of robots have been developed actively with progress of computer, and the operations with robots in the extreme environment such as rescue, space and ocean are getting practical solutions. The underwater robots are expected as one of solutions for underwater activities, i.e., maintenance of underwater structures, observations ...
Hiroshi Sakai +4 more
openaire +2 more sources
The Internet of Underwater Things
Proceedings of the Twentieth ACM International Symposium on Mobile Ad Hoc Networking and Computing, 2019The Internet of Underwater Things (IoUT) is a novel paradigm for the Blue Economy sector bringing the ability to sense, actuate, exchange information, through low cost technologies, typical of the terrestrial IoT and personal devices, to marine and ocean environments.
CARDIA, CHRISTIAN +5 more
openaire +2 more sources
Research on biomimetic underwater vehicles for underwater ISR
SPIE Proceedings, 2016Autonomous Biomimetic Underwater Vehicles BUVs driven by an undulating propulsion are a new branch in an area of an underwater robotics. They imitate both the construction and kinematics of a motion of underwater living organisms, e.g. fishes. Such vehicles have several features crucial from the point of view of military applications, e.g.
Bogdan Szturomski +5 more
openaire +2 more sources