Bibliografías temáticas / Waves/low frequency currents interractions

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Literatura académica sobre el tema "Waves/low frequency currents interractions"

Autor: Grafiati

Publicado: 11 de enero de 2025

Última modificación: 31 de julio de 2025

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Artículos de revistas sobre el tema "Waves/low frequency currents interractions"

Elgar, Steve, and Britt Raubenheimer. "Field Evidence of Inverse Energy Cascades in the Surfzone." Journal of Physical Oceanography 50, no. 8 (2020): 2315–21. http://dx.doi.org/10.1175/jpo-d-19-0327.1.

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AbstractLow-frequency currents and eddies transport sediment, pathogens, larvae, and heat along the coast and between the shoreline and deeper water. Here, low-frequency currents (between 0.1 and 4.0 mHz) observed in shallow surfzone waters for 120 days during a wide range of wave conditions are compared with theories for generation by instabilities of alongshore currents, by ocean-wave-induced sea surface modulations, and by a nonlinear transfer of energy from breaking waves to low-frequency motions via a two-dimensional inverse energy cascade. For these data, the low-frequency currents are n

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Fioranelli, Massimo, Maria Grazia Roccia, Aroonkumar Beesham, Dana Flavin, M. Ghaeni, and Faissal AZIZ. "A model for considering effects of extremely low frequency electromagnetic fields on quail embryonic cells." AIMS Biophysics 9, no. 3 (2022): 198–207. http://dx.doi.org/10.3934/biophy.2022017.

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<abstract> <p>Previous experiments have shown that extremely low frequency electromagnetic fields could cause serious effects on the evolution of cells. We propose a mathematical model which confirms those results. In our model, electromagnetic waves could cause the motions of ions and charges and the emergence of some currents around and in the interior of cells. These currents produce some waves which interact with the DNAs and remove or attach some repressors. Consequently, some genes could be turned on or off, and cells could obtain some properties or lose them. The frequency o

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Johnson, E. R. "Boundary Currents, Free Currents and Dissipation in the Low-Frequency Scattering of Shelf Waves." Journal of Physical Oceanography 19, no. 9 (1989): 1291–300. http://dx.doi.org/10.1175/1520-0485(1989)019<1291:bcfcad>2.0.co;2.

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Torres, Hector S., Patrice Klein, Jinbo Wang, et al. "Wind work at the air-sea interface: a modeling study in anticipation of future space missions." Geoscientific Model Development 15, no. 21 (2022): 8041–58. http://dx.doi.org/10.5194/gmd-15-8041-2022.

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Abstract. Wind work at the air-sea interface is the transfer of kinetic energy between the ocean and the atmosphere and, as such, is an important part of the ocean-atmosphere coupled system. Wind work is defined as the scalar product of ocean wind stress and surface current, with each of these two variables spanning, in this study, a broad range of spatial and temporal scales, from 10 km to more than 3000 km and hours to months. These characteristics emphasize wind work's multiscale nature. In the absence of appropriate global observations, our study makes use of a new global, coupled ocean-at

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Berthelier, A., J. C. Cerisier, J. J. Berthelikr, and L. Rnzeau. "Low-frequency magnetic turbulence in the high-latitude topside ionosphere: low-frequency waves or field-aligned currents." Journal of Atmospheric and Terrestrial Physics 53, no. 3-4 (1991): 333–41. http://dx.doi.org/10.1016/0021-9169(91)90117-p.

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Matsumoto, Michio, Kazuo Sakai, and Satoshi Takeuchi. "Low Frequency Waves with Azimuthal Currents in a Weakly Magnetized Positive Column." Journal of the Physical Society of Japan 61, no. 3 (1992): 844–48. http://dx.doi.org/10.1143/jpsj.61.844.

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Yao, S. T., Q. Q. Shi, Q. G. Zong, et al. "Low-frequency Whistler Waves Modulate Electrons and Generate Higher-frequency Whistler Waves in the Solar Wind." Astrophysical Journal 923, no. 2 (2021): 216. http://dx.doi.org/10.3847/1538-4357/ac2e97.

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Abstract The role of whistler-mode waves in the solar wind and the relationship between their electromagnetic fields and charged particles is a fundamental question in space physics. Using high-temporal-resolution electromagnetic field and plasma data from the Magnetospheric MultiScale spacecraft, we report observations of low-frequency whistler waves and associated electromagnetic fields and particle behavior in the Earth’s foreshock. The frequency of these whistler waves is close to half the lower-hybrid frequency (∼2 Hz), with their wavelength close to the ion gyroradius. The electron bulk

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Deguchi, Ichiro, Mamoru Arita, and Takumi Yoshii. "FLUCTUATION OF RIP CURRENT MEASURED IN SHALLOW WATER REGION WITH SMALL TIDAL RANGE." Coastal Engineering Proceedings 1, no. 32 (2011): 44. http://dx.doi.org/10.9753/icce.v32.currents.44.

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Disappearance and formation processes of rip channel are discussed based on the field measurements of wave height, current velocity, bottom topography and flow pattern of near-shore current. Sudden increase in wave height together with the change in the wave direction took place during a half day caused these phenomena and rip current rose and fell according to the transition of the bottom topography. Furthermore, flow pattern of rip current was not steady but transformed itself with low frequency fluctuations of the period of few minutes. It is found that such low frequency fluctuations are c

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Stepanov, D. V., and V. V. Novotryasov. "Sub-inertial modulation of nonlinear Kelvin waves in the coastal zone." Nonlinear Processes in Geophysics 20, no. 3 (2013): 357–64. http://dx.doi.org/10.5194/npg-20-357-2013.

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Abstract. Observational evidence is presented for interaction between nonlinear internal Kelvin waves at the ωt,i (where the ωt is the semidiurnal frequency and the ωi is the inertial frequency) and random oscillations of the background coastal current at the sub-inertial Ω frequency in the Japan/East Sea. Enhanced coastal currents at the sum ω+ and difference ω-frequencies ω±=ωt,i ± Ω have properties of propagating Kelvin waves, which suggests permanent energy exchange from the sub-inertial band to the mesoscale ω± band. This interaction may be responsible for a greater-than-predicted intensi

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Van Dongeren, Ap, Ryan Lowe, Andrew Pomeroy, et al. "MODELLING INFRAGRAVITY WAVES AND CURRENTS ACROSS A FRINGING CORAL REEF." Coastal Engineering Proceedings 1, no. 33 (2012): 29. http://dx.doi.org/10.9753/icce.v33.currents.29.

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Low-frequency (infragravity) wave dynamics on a fringing coral reef were investigated using the numerical model XBeach (Roelvink et al, 2009). First, the skill of the one-dimensional model was evaluated based on its predictions of short waves (0.04-0.2 Hz), infragravity waves (0.004-0.04 Hz) and water level measurements (tidal and wave setup) obtained during a 2009 field study at Ningaloo Reef in Western Australia. The model calibration was sensitive to friction coefficients for short waves and current / infragravity bed friction, which were assumed independent in this model study. The infragr

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Tesis sobre el tema "Waves/low frequency currents interractions"

Bella, Adrien. "Étude de l’impact des interactions entre ondes de marée interne et circulation basse fréquence sur le budget énergétique de la marée interne à l’aide d’une simulation numérique à haute résolution sur l’Atlantique Nord." Electronic Thesis or Diss., Université de Rennes (2023-....), 2024. http://www.theses.fr/2024URENS046.

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Dans cette thèse, le cycle de vie de la marée interne et sa perte de cohérence par ses interactions avec les courants sont étudiés dans l’Atlantique Nord à l’aide d’une simulation d’un océan réaliste à haute résolution. Une décomposition en mode verticaux est utilisée pour obtenir le budget d’énergie des différentes échelles de la marée interne. La dispersion topographique est dominante à l’échelle du bassin et aux niveaux des reliefs, tandis que les interactions entre la marée interne et la circulation basse fréquence signent au niveau du Gulf Stream, de son prolongement Nord Atlantique et da

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Capítulos de libros sobre el tema "Waves/low frequency currents interractions"

Lin, Y., and L. C. Lee. "Generation of Region 1 and Mantle Field-Aligned Currents by the Secondary Rotational Discontinuity." In Solar Wind Sources of Magnetospheric Ultra-Low-Frequency Waves. American Geophysical Union, 2013. http://dx.doi.org/10.1029/gm081p0213.

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Song, Yan, Robert L. Lysak, and Naiguo Lin. "Control of the Generation of Field-Aligned Currents and Transverse ULF Waves by the Magnetic Helicity Input." In Solar Wind Sources of Magnetospheric Ultra-Low-Frequency Waves. American Geophysical Union, 2013. http://dx.doi.org/10.1029/gm081p0223.

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Garrett, Steven L. "One-Dimensional Propagation." In Understanding Acoustics. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44787-8_10.

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Abstract Having already invested in understanding both the equation of state and the hydrodynamic equations, only straightforward algebraic manipulations will be required to derive the wave equation, justify its solutions, calculate the speed of sound in fluids, and derive the expressions for acoustic intensity and the acoustic kinetic and potential energy densities of sound waves. The “machinery” developed to describe waves on strings will be sufficient to describe one-dimensional sound propagation in fluids, even though the waves on the string were transverse and the one-dimensional waves in

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Hayden, Bruce P., and Nils R. Hayden. "Decadal and Century-Long Changes in Storminess at Long-Term Ecological Research Sites." In Climate Variability and Ecosystem Response in Long-Term Ecological Research Sites. Oxford University Press, 2003. http://dx.doi.org/10.1093/oso/9780195150599.003.0026.

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Ecological disturbances at Long-Term Ecological Research (LTER) sites are often the result of extreme meteorological events. Among the events of significance are tropical storms, including hurricanes, and extratropical cyclones. Extratropical storms are low-pressure systems of the middle and high latitudes with their attendant cold and warm fronts. These fronts are associated with strong, horizontal thermal gradients in surface temperatures, strong winds, and a vigorous jet stream aloft. These storms and their attendant fronts generate most of the annual precipitation in the continental United

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Actas de conferencias sobre el tema "Waves/low frequency currents interractions"

Jena, Parthasarathi, Lin Li, Sverre Haver, and Xu Xiang. "Low Frequency Energy in Measured Waves in a Narrow Norwegian Fjord." In ASME 2024 43rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/omae2024-126795.

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Abstract The E39 Coastal Highway Route project undertaken by Norwegian Public Roads Administration aims at replacing existing ferry crossings by constructing permanent road connections using bridges along the western coast of Norway. One of the bridge designs being developed is a beam bridge resting on floating pontoons. In contrast to conventional bridges, a floating bridge rests on pontoons floating on the water surface and are affected to a much greater extent by waves and currents in the waters it spans. In order to have a solid basis for taking the environmental loads into account in the

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Абрамян, Владимир Казаросович, Валентин Эдуардович Гель, Александр Сергеевич Дворников, and Андрей Игоревич Жирохов. "EMISSION OF ELECTROMAGNETIC WAVES (EMW) OF THE RADIO-FREQUENCY RANGE IN LOW-VOLTAGE ELECTRIC CIRCUITS WITH QUASISTATIONARY CURRENTS." In Высокие технологии и инновации в науке: сборник избранных статей Международной научной конференции (Санкт-Петербург, Май 2022). Crossref, 2022. http://dx.doi.org/10.37539/vt197.2022.95.51.006.

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Представлена методика оценки параметров электромагнитных волн (ЭМВ), источниками которых являются элементы цепи низкочастотного переменного тока. Она позволяет оценить их роль в создании помех для нормального функционирования средств связи в радиочастотном диапазоне. An engineering technique has been developed for estimating the parameters of electromagnetic waves (EMW), the sources of which are elements of a low-frequency alternating current circuit. It allows you to evaluate their role in creating interference for the normal functioning of communications in the radio frequency range.

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Dev, Arun Kr. "Viscous Drift Forces on a Semisubmersible in Waves and Currents." In SNAME Maritime Convention. SNAME, 2022. http://dx.doi.org/10.5957/smc-2022-069.

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Starting from the early sixties and then in the early eighties, it was well established that second-order wave excitation forces exist for floating bodies in regular waves. This force is not only steady (mean) in nature; it also has a low-frequency (difference frequency) and a high-frequency (sum frequency) component force in irregular waves, e.g., in a wave envelope of irregular waves. While potential drift force calculations were entirely accurate for large body structures like tankers, FPSOs, and other bluff bodies, the potential theory-based drift force calculations fell far short (serious

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Papadopoulos, K., Bengt Eliasson, X. Shao, and A. S. Sharma. "Modeling pitch angle scattering of radiation belt particles by the injection of low frequency waves with F-region HF-driven ionospheric currents." In 2011 XXXth URSI General Assembly and Scientific Symposium. IEEE, 2011. http://dx.doi.org/10.1109/ursigass.2011.6051068.

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Sagrilo, Lui´s Volnei Sudati, Marcos Queija de Siqueira, Thiago Aˆngelo Gonc¸alves de Lacerda, Gilberto Bruno Ellwanger, Edison Castro Prates de Lima, and Elizabeth Frauches Netto Siqueira. "VIM and Wave-Frequency Fatigue Damage Analysis for SCRs Connected to Monocolumn Platforms." In ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/omae2009-79807.

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The large Vortex Induced Motion (VIM) due to current acting on a circular-shaped monocolumn platform induces low-frequency stress variations on the SCRs (Steel Catenary Risers) connected to it. These stresses together with stress variations associated to wave effects must be accounted for in the fatigue analysis of these risers. Normally, the joint statistics of waves and currents show that these environmental variables may be considered as statistically independent. Therefore, the number of global riser analyses necessary for the SCRs fatigue analysis becomes extremely high in order to consid

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Tang, Hung-Jie, Ray-Yeng Yang, and Chai-Cheng Huang. "Numerical Modelling of the Mooring Line Failure Induced Performance Changes of a Marine Fish Cage in Irregular Waves and Currents." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-95730.

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Abstract This study aims to investigate the performance changes resulted from a mooring line failure of a marine fish cage exposed to irregular waves and current. A numerical model based on the lumped mass method and Morison equation was extended to simulate the mooring line failure scenario. In this study, the failed resulting changes were compared with its normal counterpart in both the time domain and the frequency domain. After one upstream anchor loss, the maximum tension on the remaining anchor has increased significantly, as well as the drift distance of the rearing part (net chamber, f

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Ivanov, Leonid, Rafael Ramos, and Drew Gustafson. "Energetics and Kinematics of Inertial Oscillations in the Central Northern GOM." In Offshore Technology Conference. OTC, 2021. http://dx.doi.org/10.4043/31020-ms.

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Abstract Understanding the physics of generation, propagation, and dissipation of inertial currents is important from a variety of aspects. For the Gulf of Mexico, one such aspect is that these oscillations represent an uncertainty in the measurements and forecasting of the longer-period currents, such as those due to the Loop Current (LC) and meso-scale eddies. The Industry has a practice of applying an ‘uplift’ to estimates of current velocity to account for the effect of tidal and inertial currents in cases when observations or model estimates do not resolve the high-frequency current varia

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Barzegar Valikchali, Saeed, Mitchell Anderson, David Molyneux, and Dean Steinke. "Estimating Second Order Wave Drift Forces and Moments for Calculating DP Capability Plots." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-96307.

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Abstract The DP capability plot is a useful tool to show the limitations of a dynamic positioning system for ships or offshore structures under loading from wind, waves and ocean currents. At the preliminary design stage, it is desirable to use fast methods for calculating the forces and moments caused by the environment, preferably without the need for CFD simulations or model experiments. Empirical methods are available for predicting aerodynamic forces and moments, and hydrodynamic forces and moments from currents, but little is published for second order wave drift forces. Wave drift force

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Karatvuo, Helena, Michael Linde, Azam Dolatshah, and Simon Mortensen. "Improved Climate Change Adaptation in Port of Brisbane Using a Digital Twin Cloud-Based Modelling Approach." In ASME 2022 41st International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/omae2022-79613.

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Abstract Due to their low-lying coastal location, ports are vulnerable to climate change induced increases to flooding, waves, extreme winds, and the associated costly damages to port infrastructure and operational disruptions. For these reasons, there is an increasing need for ports to undertake regular risk assessments of the vulnerability of their infrastructure and operations due to the impacts of climate change. A digital twin, cloud-based climate change modelling solution has been developed to enable in-house risk assessments of climate change vulnerability to be undertaken for any port.

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Informes sobre el tema "Waves/low frequency currents interractions"

Unknown, Author. L51630 In-Line Detection and Sizing of Stress Corrosion Cracks Using EMAT Ultrasonics. Pipeline Research Council International, Inc. (PRCI), 1990. http://dx.doi.org/10.55274/r0010616.

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The development of stress corrosion cracks (SCC) in buried gas pipelineshas posed a serious threat to pipeline integrity for many years. It can be reliably detected by magnetic particle techniques in the field or by laboratory studies using low frequency eddy currents. It is also possible to find and measure the depths of the cracks from the ID by careful scanning with an ultra-sonic angle beam probe but the transducer must be manipulated by a skilled operator. All of these approaches are not very satisfactory for in-line inspections because they are not suitable for covering the total area of

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