Results 21 to 30 of about 599,520 (341)

Regular cannon wave

open access: yesIndian Heart Journal, 2016
A 52-year-old male with history of dilated cardiomyopathy was admitted with progressive dizziness and worsening dyspnea. His blood pressure was 100/60 with a regular pulse of 70 per minute. Jugular vein wave showed a prominent pulse like regular cannon waves.
Ranjith, Mangalachulli Pottammal   +2 more
openaire   +3 more sources

Gravitational Waves from The Newtonian plus H\'enon-Heiles System [PDF]

open access: yes, 1998
In this work we analyze the emission of gravitational waves from a gravitational system described by a Newtonian term plus a H\'enon-Heiles term. The main concern is to analyze how the inclusion of the Newtonian term changes the emission of gravitational
Fernando Kokubun   +4 more
core   +3 more sources

Pure loss of stability calculation of naval ship in regular waves

open access: yesZhongguo Jianchuan Yanjiu, 2017
The pure loss of stability of a ship is one of the failure modes of the second-generation intact stability criteria. Based on the static surface coordinate system, the generalized pitch angle and draught variable are defined, and a wave equation with ...
ZHU Jun   +4 more
doaj   +1 more source

Cylindrical gravitational waves in expanding universes: Models for waves from compact sources [PDF]

open access: yes, 2007
New boundary conditions are imposed on the familiar cylindrical gravitational wave vacuum spacetimes. The new spacetime family represents cylindrical waves in a flat expanding (Kasner) universe. Space sections are flat and nonconical where the waves have
B. Douglas Edmonds   +5 more
core   +2 more sources

Numerical simulation of planing motion and hydrodynamic performance of a seaplane in calm water and waves

open access: yesEngineering Applications of Computational Fluid Mechanics, 2023
The high-speed motion of a seaplane involves the coupled hydrodynamic and aerodynamic effects. The suction force, pressure, free surface and motion of the seaplane model were numerically investigated to understand the characteristics of the seaplane's ...
Zhijie Song   +4 more
doaj   +1 more source

Strip calculations for ship oscillation coupled response in regular waves

open access: yesZhongguo Jianchuan Yanjiu, 2018
[Objectives] The strip method is widely used in the sea-keeping design of ships, but the hydrodynamics are only evaluated for the mean-hull position,so heaving,pitching and rolling motions are not essentially coupled. [Methods] For the effective coupling
ZHU Jun   +5 more
doaj   +1 more source

Numerical Investigation on the Hydrodynamic Response of Pentamaran—Resistance Analysis of Different Outrigger Inclination Angles

open access: yesJournal of Marine Science and Engineering, 2023
Due to the interference between the main hull and the outrigger of the pentamaran, resistance is greatly affected. Therefore, research on the pentamaran front outrigger inclination angle has further practical significance for reducing resistance. In this
Pengwei Hu   +4 more
doaj   +1 more source

Lattice symmetry breaking perturbations for spiral waves [PDF]

open access: yes, 2014
Spiral waves in two-dimensional excitable media have been observed experimentally and studied extensively. It is now well-known that the symmetry properties of the medium of propagation drives many of the dynamics and bifurcations which are ...
Charette, Laurent, LeBlanc, Victor G.
core   +1 more source

Regular Wave Seakeeping Analysis of a Planing Hull by Smoothed Particle Hydrodynamics: A Comprehensive Validation

open access: yesJournal of Marine Science and Engineering, 2023
In this work, the dynamics of a planing hull in regular head waves was investigated using the Smoothed Particle Hydrodynamics (SPH) meshfree method.
Salvatore Capasso   +6 more
doaj   +1 more source

Regularity of Wave-Maps in Dimension 2 + 1 [PDF]

open access: yesCommunications in Mathematical Physics, 2010
31 ...
Sterbenz, Jacob, Tataru, Daniel
openaire   +5 more sources

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