Results 131 to 140 of about 981 (181)

Evidence against surf‐riding as a general mechanism for surface motility

Cell Motility, 1984
AbstractThe mechanism responsible for the energy‐dependent movement of membrane components (ie, surface motility) is unknown. Recently a potentially unifying model, termed “surf‐riding” [Hewitt, 1979] or “surf‐boarding” [Berlin and Oliver, 1982], has been proposed to explain surface motility.
S S, Bowser, R A, Bloodgood
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Surf-Riding Operational Measures for Fast Semidisplacement Naval Hull Form

2020
Surf-riding/broaching failure mode is one of the Second Generation Intact Stability Criteria (SGISC) dealt by IMO. The SGISC are structured with a multi-tiered approach: Level 1, Level 2 and Direct Stability Assessment (DSA). When a ship does not verify one level, the next once must be applied, or the ship design must be modified.
Rinauro, B, Begovic, E, Gatin, I, Jasak, H   +3 more
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Surf-riding model for cell capping

Journal of Theoretical Biology, 1979
Abstract A model is proposed for cell capping which postulates that progressive waves on the surface of motile cells are the inducers of movement of membrane bound particles and macromolecules. First order calculations are performed which indicate that a large particle will be entrained by waves more readily than a small one; this corresponds with ...
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Detection of surf-riding behavior of ships in irregular seas

Nonlinear Dynamics, 2014
From investigations with ship models tested in steep periodic following waves, it has been conjectured in the past that, if the speed is observed reaching (in transient) the celerity value, attraction toward the condition commonly identified as “surf-riding” is already in progress.
K. J. Spyrou, V. Belenky, N. Themelis, K. Weems   +3 more
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Modeling of Surf-Riding in Irregular Waves

2019
Surf-riding is an important phenomenon for the evaluation of ship dynamic stability, as it is related to one of the principal mechanisms of broaching-to. The evaluation of the probability of surf-riding in irregular waves is a necessary step toward determining the probability of broaching-to following surf-riding.
Vadim L. Belenky, Kostas J. Spyrou, Kenneth M. Weems   +2 more
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Surf-Riding of Ships from the MARIN Series of Fast Displacement Ships

2023
The paper employs the Second Generation Intact Stability Criteria (SGISC) Vulnerability level 2 to investigate the vulnerability of the MARIN series of fast displacement ships to surf-riding. Additionally, the paper examines the influence of different options for ship resistance and wave surge force calculation on the outcome of the vulnerability ...
Ilić, Nemanja, Bačkalov, Igor
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Study on ship's stability loss in surf-riding based on CFD

2017 4th International Conference on Information, Cybernetics and Computational Social Systems (ICCSS), 2017
Based on Computational Fluid Dynamics, ship's righting arms of different heeling angles were calculated to study ship's stability loss in following sea. First, based on the wave-generation method of defining inlet boundary conditions, the numerical wave tank was constructed for ship's movement in surf-riding.
Bo Yang, Xiao Wang
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On the Surf-riding of a Ship

Journal of the Society of Naval Architects of Japan, 1982
When travelling in heavy following sea a ship is accelerated on the front slope of a wave and her velocity may become nearly the same as the wave celerity. This phenomenon is called surf-riding and may cause broaching-to, which is very dangerous situation for small craft.
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Experimental Research on the Surf-Riding Region for High Speed Vessels

SNAME 13th International Conference on Fast Sea Transportation, 2015
It is well known that surf-riding phenomenon is the prerequisite of the broaching-to in following and quartering conditions. For the safety assessment of the fast vessel such as surface combatant sand patrol crafts, the estimation of the surf-riding condition is important. Therefore, so far several experimental efforts have been made. However, in these
Atsuo Maki, Yoshiki Miyauchi
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Surf-riding and oscillations of a ship in quartering waves

Journal of Marine Science and Technology, 1995
The behavior of a ship encountering large regular waves from astern at low frequency is the object of investigation, with a parallel study of surf-riding and periodic motion paterns. First, the theoretical analysis of surf-riding is extended from purely following to quartering seas. Steady-state continuation is used to identify all possible surf-riding
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