نتایج جستجو برای: peak wave period

تعداد نتایج: 819965  

2010
E. L. Shroyer J. N. Moum

The energetics of large amplitude, high-frequency nonlinear internal waves (NLIWs) observed over the New Jersey continental shelf are summarized from ship and mooring data acquired in August 2006. NLIW energy was typically on the order of 105 Jm−1, and the wave dissipative loss was near 50 W m−1. However, wave energies (dissipations) were ∼10 (∼2) times greater than these values during a partic...

2004
S. W. Bougher S. Engel D. P. Hinson J. R. Murphy

[1] Martian electron density profiles provided by the Mars Global Surveyor (MGS) Radio Science (RS) experiment over the 95–200 km altitude range indicate wthat the height of the electron peak and the longitudinal structure of the peak height are sensitive indicators of the physical state of the Mars lower and upper atmospheres. The present analysis is carried out on five sets of occultation pro...

2006
James C.Y. Guo

The Rational method was reviewed, and found to be a special case of the kinematic wave solution under a uniform rainfall excess. In this study, a moving average procedure is introduced to the kinematic wave model. The kinematic wave solution is modified from an instantaneous rainfall to an average rainfall over a period of time of concentration. The revised kinematic wave solution provides the ...

2009
P. Spottiswoode

We analyze a database of 3,325 free response anomalous cognition experiments, using procedures recently used in an analysis of a catalog of UFO events. A histogram analysis shows evidence of a significant annual modulation in the success rate, but no significant evidence for modulations associated with time of day or local sidereal time (LST). The salient feature of a power spectrum formed by t...

Journal: :EURASIP J. Adv. Sig. Proc. 2010
Wai Lok Lai Thomas Kind Herbert Wiggenhauser

Ground penetrating radar (GPR) was used to characterize the frequency-dependent dielectric relaxation phenomena in ordinary Portland cement (OPC) hydration in concrete changing from fresh to hardened state. The study was experimented by measuring the changes of GPR A-scan waveforms over a period of 90 days, and processed the waveforms with short-time Fourier transform (STFT) in joint time-frequ...

Journal: :Ocean Engineering 2023

Freak waves can cause serious damage to offshore structures because of their characteristics high peak energy, short duration, and great contingency. In this study, the slamming pressure a typical floating wind turbine under freak are studied by numerical simulation experiment. The computational fluid dynamics (CFD) method is used establish tank. experimental test float implemented at Jiangsu U...

Journal: :Journal of Signal and Information Processing 2013

ژورنال: علوم آب و خاک 2012
رسول قبادیان, , سید محمود کاشفی‌پور, , محمد زارع, ,

Development of precise and simple methods in flood simulation has greatly reduced financial damage and life loss. Various methods and procedures have been implemented based on Saint-Venant's one-dimensional equation governing unsteady flows. To simplify the solution for these flows, analytical and numerical methods have been used. In the present study, a new method that provides the optimal out...

2014
Brendan Cahill

An informed, and accurate, characterization of the wave energy resource is an essential aspect selection of suitable sites for the first commercial installations of wave energy converters. This paper describes a detailed study on the variability of wave climate and measured spectral shapes and how they differ from the standard formulations prescribed by theory. In particular dissonance between ...

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