Results 41 to 50 of about 1,145,232 (323)

Preliminary tests of a damaged ship for CFD validation

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2012
One of the most critical issues in naval architecture these days is the operational safety. Among many factors to be considered for higher safety level requirements, the hull stability in intact and damaged conditions is the first to ensure for both ...
Sungkyun Lee   +5 more
doaj   +1 more source

Hydrodynamics Factors Correspond to the Weather Criterion Applied to an Indonesian Ro-Ro Ferry with Different Weight Distributions

open access: yesInternational Journal of Technology, 2021
The effect of weight distribution on hydrodynamics factors in the weather criterion was investigated. Two types of weight distribution were examined.
Daeng Paroka   +2 more
doaj   +1 more source

Research on Influence of Tank Sloshing on Ship Motion Response under Different Wavelengths

open access: yesApplied Sciences, 2022
The motion of the liquid-carrying ship under waves is simultaneously affected by the external wave moment and the sloshing moment of the internal tank, which makes the motion of the ship more complicated.
Xinsheng Fan, Zhenhong Hu, Xing Zheng
doaj   +1 more source

Local non-Gaussianity from inflation [PDF]

open access: yes, 2010
The non-Gaussian distribution of primordial perturbations has the potential to reveal the physical processes at work in the very early Universe. Local models provide a well-defined class of non-Gaussian distributions that arise naturally from the non ...
Alabidi L   +54 more
core   +3 more sources

Primordial fluctuations from inflation in dRGT bimetric theory of gravity [PDF]

open access: yes, 2016
We investigate primordial gravitational waves and curvature perturbations in de Rham-Gabadadze-Tolley (dRGT) bimetric gravity. We evaluate the power-spectra in the leading order in slow roll.
Sakakihara, Yuki, Tanaka, Takahiro
core   +2 more sources

On rolling, tunneling and decaying in some large N vector models [PDF]

open access: yesJournal of High Energy Physics, 2009
Various aspects of time-dependent processes are studied within the large N approximation of O(N) vector models in three dimensions. These include the rolling of fields, the tunneling and decay of vacua. We present an exact solution for the quantum conformal case and find a solution for more general potentials when the total change of the value of the ...
Asnin, Vadim   +2 more
openaire   +2 more sources

Heading Direction Is Significantly Biased by Preceding Whole-Body Roll-Orientation While Lying

open access: yesFrontiers in Neurology, 2022
BackgroundAfter a prolonged static whole-body roll-tilt, a significant bias of the internal estimates of the direction of gravity has been observed when assessing the subjective visual vertical.ObjectiveWe hypothesized that this post-tilt bias represents
Alexander Andrea Tarnutzer   +4 more
doaj   +1 more source

A Coupled SVM-NODE Model for Efficient Prediction of Ship Roll Motion

open access: yesJournal of Marine Science and Engineering
Traditional analyses of ship roll damping and added moment of inertia rely on free roll decay and forced roll tests, but acquiring linear (small angles) and nonlinear (large angles) relationships demands extensive computational cases and parameter ...
Yaxiong Zheng   +3 more
doaj   +1 more source

Numerical Study on the Effect of Weight Variables on the Roll Damping Coefficients for a Fishing Vessel

open access: yesPolish Maritime Research
The roll damping coefficient is essential when considering the viscous effect in the potential-based hydrodynamic analysis of fishing vessels; it is an important factor in the roll motion response.
Seo Janghoon, Park Dong-Woo
doaj   +1 more source

Pre-slow roll initial conditions: large scale power suppression and infrared aspects during inflation

open access: yes, 2014
If the large scale anomalies in the temperature power spectrum of the cosmic microwave background are of primordial origin, they may herald modifications to the slow roll inflationary paradigm on the largest scales.
Boyanovsky, Daniel   +2 more
core   +1 more source

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