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Статті в журналах з теми "Linear wave scattering"
Mi, Zhao, Long Pengzhen, Wang Piguang, Zhang Chao, and Du Xiuli. "An Analytical Solution for the Interaction of Waves with Arrays of Circular Cylinders." Mathematical Problems in Engineering 2021 (October 11, 2021): 1–12. http://dx.doi.org/10.1155/2021/5710894.
Повний текст джерелаSavotchenko, S. E. "THE LINEAR WAVE SCATTERING BY A NON-LINEAR DEFECT." Belgorod State University Scientific bulletin Mathematics Physics 50, no. 3 (September 30, 2018): 283–91. http://dx.doi.org/10.18413/2075-4639-2018-50-3-283-291.
Повний текст джерелаPorter, R. "An extended linear shallow-water equation." Journal of Fluid Mechanics 876 (August 1, 2019): 413–27. http://dx.doi.org/10.1017/jfm.2019.555.
Повний текст джерелаCHEN, YONGZE, and R. T. GUZA. "Resonant scattering of edge waves by longshore periodic topography." Journal of Fluid Mechanics 369 (August 25, 1998): 91–123. http://dx.doi.org/10.1017/s0022112098001700.
Повний текст джерелаLi, Hong Liang. "Far Field Solution of Circular Inclusion and Linear Crack by SH-Wave." Key Engineering Materials 462-463 (January 2011): 455–60. http://dx.doi.org/10.4028/www.scientific.net/kem.462-463.455.
Повний текст джерелаPETER, MALTE A., and MICHAEL H. MEYLAN. "Water-wave scattering by a semi-infinite periodic array of arbitrary bodies." Journal of Fluid Mechanics 575 (March 2007): 473–94. http://dx.doi.org/10.1017/s0022112006004319.
Повний текст джерелаVakakis, A. F. "Scattering of Structural Waves by Nonlinear Elastic Joints." Journal of Vibration and Acoustics 115, no. 4 (October 1, 1993): 403–10. http://dx.doi.org/10.1115/1.2930364.
Повний текст джерелаRazavy, M. "Scattering of acoustic waves by an oscillating soft sphere." Canadian Journal of Physics 68, no. 2 (February 1, 1990): 184–89. http://dx.doi.org/10.1139/p90-026.
Повний текст джерелаSugaya, R. "Momentum-space diffusion due to resonant wave–wave scattering of electromagnetic and electrostatic waves in a relativistic magnetized plasma." Journal of Plasma Physics 56, no. 2 (October 1996): 193–207. http://dx.doi.org/10.1017/s0022377800019206.
Повний текст джерелаChen, Cheng-Tsung, Jaw-Fang Lee, and Chun-Han Lo. "Mooring Drag Effects in Interaction Problems of Waves and Moored Underwater Floating Structures." Journal of Marine Science and Engineering 8, no. 3 (February 25, 2020): 146. http://dx.doi.org/10.3390/jmse8030146.
Повний текст джерелаДисертації з теми "Linear wave scattering"
Jeyakumaran, R. "Some scattering and sloshing problems in linear water wave theory." Thesis, Brunel University, 1993. http://bura.brunel.ac.uk/handle/2438/5390.
Повний текст джерелаKent, William J. "Plane wave scattering by thin linear dielectric-coated wires and dielectric strips : a moment method approach with physical basis functions /." The Ohio State University, 1985. http://rave.ohiolink.edu/etdc/view?acc_num=osu148726053195675.
Повний текст джерелаGaw, Stephen Michael. "Cooperative spin excitations in quantum materials studied by neutron spectroscopy." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:c20676e1-b927-4ee5-a3fe-97f0f80cb141.
Повний текст джерелаLehner, Thierry. "Interaction quadratique onde-onde en plasma : battement d'ondes, couplage onde-fluctuations." Paris 6, 1987. http://www.theses.fr/1987PA066482.
Повний текст джерелаPham, Truong Xuan. "Peeling et scattering conforme dans les espaces-temps de la relativité générale." Thesis, Brest, 2017. http://www.theses.fr/2017BRES0034/document.
Повний текст джерелаThis work explores two aspects of asymptotic analysis in general relativity: peeling and conformal scattering.On the one hand, the peeling is constructed for linear and nonlinear scalar fields as well as Dirac fields on Kerr spacetime, which is non-stationary and merely axially symmetric. This generalizes the work of L. Mason and J-P. Nicolas (2009, 2012). The vector field method (geometric energy estimates) and the conformal technique are developed. They allow us to formulate the definition of the peeling at all orders and to obtain the optimal space of initial data which guarantees these behaviours. On the other hand, a conformal scattering theory for the spin-n/2 zero rest-mass equations on Minkowski spacetime is constructed. Using the conformal compactifications (full and partial), the spacetime is completed with two null hypersurfaces representing respectively the past and future end points of null geodesics. The asymptotic behaviour of fields is then obtained by solving the Cauchy problem for the rescaled equation and considering the traces of the solutions on these hypersurfaces. The invertibility of the trace operators, that to the initial data associate the future or past asymptotic behaviours, is obtained by solving the Goursat problem on the conformal boundary. The conformal scattering operator is then obtained by composing the future trace operator with the inverse of the past trace operator
Watson, Francis Maurice. "Better imaging for landmine detection : an exploration of 3D full-wave inversion for ground-penetrating radar." Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/better-imaging-for-landmine-detection-an-exploration-of-3d-fullwave-inversion-for-groundpenetrating-radar(720bab5f-03a7-4531-9a56-7121609b3ef0).html.
Повний текст джерелаLafontaine, David. "Effets dispersifs et asymptotique en temps long d'équations d'ondes dans des domaines extérieurs." Thesis, Université Côte d'Azur (ComUE), 2018. http://www.theses.fr/2018AZUR4067/document.
Повний текст джерелаWe are concerned with Schrödinger and wave equations, both linear and non linear, in exterior domains. In particular, we are interested in the so-called Strichartz estimates, which are a family of dispersive estimates measuring decay for the linear flow. They turn out to be particularly useful in order to study the corresponding non linear equations. In non-captive geometries, where all the rays of geometrical optics go to infinity, many results show that Strichartz estimates hold with no loss with respect to the flat case. Moreover, the local smoothing estimates for the Schrödinger equation, respectively the local energy decay for the wave equation, which are another family of dispersive estimates, are known to fail in any captive geometry. In contrast, we show Strichartz estimates without loss in an unstable captive geometry: the exterior of many strictly convex obstacles verifying Ikawa's condition. The second part of this thesis is dedicated to the study of the long time asymptotics of the corresponding non linear equations. We expect that they behave linearly in large times, or scatter, when the domain they live in does not induce too much concentration effect. We show such a result for the non linear critical wave equation in the exterior of a class of obstacles generalizing star-shaped bodies. In the exterior of two strictly convex obstacles, we obtain a rigidity result concerning compact flow solutions, which is a first step toward a general result. Finally, we consider the non linear Schrödinger equation in the free space but with a potential. We prove that solutions scatter for a repulsive potential, and for a sum of two repulsive potentials with strictly convex level surfaces. This provides a scattering result in a framework similar to the exterior of two strictly convex obstacles
Boyle, Jonathan William. "Observation of linear and nonlinear magnetostatic waves by Brillouin light scattering." Thesis, University of Salford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.262623.
Повний текст джерелаMarconi, Jorge Diego. "Estudo de amplificadores paramétricos para sistemas de comunicações ópticas de altas taxas de transmissão." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/277933.
Повний текст джерелаTese (doutorado) - Universidade Estadual de Campinas, Instituto de Fisica Gleb Wataghin
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Resumo: Esta tese apresenta um estudo teórico e experimental sobre Amplificadores Paramétricos a Fibra Óptica. Mostramos primeiramente a potencialidade do amplificador em termos de largura de banda plana, necessária para aplicações em sistemas WDM. Foram desenvolvidas equações do ripple para os diferentes tipos de espectro de alto ganho possíveis. Usando fibras de dispersão deslocada e fibras altamente não-lineares curtas, construímos amplificadores de dois bombeios com uma banda plana de amplificação de 52 nm e 84 nm, respectivamente. Em ambos os casos, a banda obtida foi comparável à obtida com outras tecnologias como Érbio ou Raman. Pesquisamos também o crosstalk entre canais em amplificadores paramétricos. Mostramos como as variações de ë 0 ao longo da fibra aumentam o crosstalk, pois se incrementam os processos de mistura de quatro ondas espúrios. Em amplificadores de dois bombeios, obtivemos os melhores resultados para aplicações WDM com fibras curtas (L ~ 0.8 km). Finalmente, a partir da análise da penalidade do fator de mérito Q do sinal, estudamos como os efeitos da modulação de fase do/s laser/s de bombeio, necessária para suprimir o espalhamento Brillouin estimulado, são prejudiciais para a performance destes amplificadores. Com base nesse resultado, procuramos eliminar o espalhamento Brillouin com um método alternativo que consiste na aplicação de distribuições de deformação mecânica ao longo da fibra. Obtivemos um aumento de 10.7 dB em 285 m de fibra altamente não-linear, o que é da ordem dos valores obtidos modulando a fase do/s bombeio/s. Aplicamos a técnica em dispositivos paramétricos obtendo um conversor de comprimento de onda com um sinal convertido de largura de banda estreito, sintonizável ao longo de 70 nm de comprimento de onda do sinal de entrada
Abstract: This thesis presents a theoretical and experimental study on fiber optics parametric amplifiers. For the double-pumped case, we show the performance of the amplifier in terms of spectral bandwidth and gain uniformity, both fundamental properties for WDM applications. By using short dispersion shifted fibers and highly non-linear fibers, we made parametric amplifiers with 52 and 84 nm of flat bandwidth, respectively. In both cases, the bandwidth is similar to the one obtained with optical amplifiers based on other technologies such as doped fibers, Raman gain or semiconductors. We also deduced equations of the gain ripple for all the possible types of high gain spectra. We also investigated the inter-channel crosstalk in parametric amplifiers. We showed that the variations of the zero dispersion wavelength along the fiber increase the crosstalk because those variations enhances the spurious four wave mixing tones. Finally, the degradation of the signal quality factor (Q) was studied for both, single and double-pumped parametric amplifiers. We showed that the phase modulation applied to the pump lasers to suppress the stimulated Brillouin backscattering can strongly degrade the performance of the amplifier. One alternative technique that we developed was based on applying different mechanical stress distributions along the fiber length. We experimentally demonstrated, using 285 m of highly non-linear fibers, that the backscattering threshold can be increased by 10.7 dB. This value is similar to that obtained using the phase modulation schema. The method was successfully applied to parametric devices. In particular we made a narrow linewidth wavelength converter with 70 nm of signal tuning band
Doutorado
Física
Doutor em Ciências
Ferrier, Jean-Louis. "Contribution à l'étude de la conjugaison de phase, en régime d'excitation picoseconde, dans les milieux liquides et cristallins : faisabilité, caractérisation et applications." Angers, 1986. http://www.theses.fr/1986ANGE0003.
Повний текст джерелаКниги з теми "Linear wave scattering"
Jeyakumaran, R. Some scattering and sloshing problems in linear water wave theory. Uxbridge: Brunel University, 1993.
Знайти повний текст джерелаZingg, D. W. A review of high-order and optimized finite-difference methods for simulating linear wave phenomena. [Moffett Field, Calif.]: Research Institute for Advanced Computer Science, NASA Ames Research Center, 1996.
Знайти повний текст джерелаZingg, D. W. A review of high-order and optimized finite-difference methods for simulating linear wave phenomena. [Moffett Field, Calif.]: Research Institute for Advanced Computer Science, NASA Ames Research Center, 1996.
Знайти повний текст джерелаZingg, D. W. A review of high-order and optimized finite-difference methods for simulating linear wave phenomena. [Moffett Field, Calif.]: Research Institute for Advanced Computer Science, NASA Ames Research Center, 1996.
Знайти повний текст джерелаLectures on linear partial differential equations. Providence, R.I: American Mathematical Society, 2011.
Знайти повний текст джерелаBoyle, Jonathan William. Observation of linear and nonlinear magnetostatic waves by Brillouin light scattering. Salford: University of Salford, 1995.
Знайти повний текст джерела1943-, Colton David L., and Monk Peter 1956-, eds. The linear sampling method in inverse electromagnetic scattering. Philadelphia: Society for Industrial and Applied Mathematics, 2011.
Знайти повний текст джерелаDzhamay, Anton, Christopher W. Curtis, Willy A. Hereman, and B. Prinari. Nonlinear wave equations: Analytic and computational techniques : AMS Special Session, Nonlinear Waves and Integrable Systems : April 13-14, 2013, University of Colorado, Boulder, CO. Providence, Rhode Island: American Mathematical Society, 2015.
Знайти повний текст джерелаB, Weglein Arthur, ed. Seismic imaging and inversion: Application of linear inverse theory. Cambridge: Cambridge University Press, 2012.
Знайти повний текст джерелаReed, Michael. Abstract Non Linear Wave Equations. Springer London, Limited, 2006.
Знайти повний текст джерелаЧастини книг з теми "Linear wave scattering"
Wiskin, J., D. T. Borup, S. A. Johnson, M. Berggren, T. Abbott, and R. Hanover. "Full-Wave, Non-Linear, Inverse Scattering." In Acoustical Imaging, 183–93. Dordrecht: Springer Netherlands, 2007. http://dx.doi.org/10.1007/1-4020-5721-0_20.
Повний текст джерелаCollino, Francis, M’Barek Fares, and Houssem Haddar. "On the Validation of the Linear Sampling Method in Electromagnetic Inverse Scattering Problems." In Mathematical and Numerical Aspects of Wave Propagation WAVES 2003, 649–54. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-642-55856-6_105.
Повний текст джерелаDeutsch, W. A. K., A. Cheng, and J. D. Achenbach. "Wave Scattering from Surface-Breaking Cracks Sonified by a Linear Phased Array." In Review of Progress in Quantitative Nondestructive Evaluation, 71–78. Boston, MA: Springer US, 1999. http://dx.doi.org/10.1007/978-1-4615-4791-4_8.
Повний текст джерелаTsytovich, Vadim N. "Stimulated Scattering of Waves by Particles." In Lectures on Non-linear Plasma Kinetics, 137–72. Berlin, Heidelberg: Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-78902-1_6.
Повний текст джерелаAimi, Alessandra, Mauro Diligenti, and Chiara Guardasoni. "Energetic BEM for the Numerical Solution of 2D Hard Scattering Problems of Damped Waves by Open Arcs." In Structured Matrices in Numerical Linear Algebra, 267–83. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-04088-8_14.
Повний текст джерелаLogvin, Aleksander I., and Anatolij I. Kozlov. "Formulation of Scattering Matrix for Electromagnetic Waves under Non-Linear Transformation: Non-Linear Oxidized Metal Junction Higher Harmonics Reradiation Effects." In Direct and Inverse Methods in Radar Polarimetry, 1057–64. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-010-9243-2_46.
Повний текст джерелаKozlov A. I., Logvin A. I., Sarychev V. A., Shatrakov Y. G., and Zavalishin O. I. "Enhancing Radar Station Functionalities to Delineate Linear Dimensions of Extended Visual Targets for Incoherent Scattering of Electromagnetic Waves." In Springer Aerospace Technology, 333–40. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-8395-3_11.
Повний текст джерелаKozlov A. I., Logvin A. I., Sarychev V. A., Shatrakov Y. G., and Zavalishin O. I. "Enhancing Radar Station Functionalities to Delineate and Estimate Linear Dimensions of Extended Visual Targets for Coherent Scattering of Electromagnetic Waves." In Springer Aerospace Technology, 341–62. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-8395-3_12.
Повний текст джерелаAdam, John A. "Scattering of Surface Gravity Waves by Islands, Reefs, and Barriers." In Rays, Waves, and Scattering. Princeton University Press, 2017. http://dx.doi.org/10.23943/princeton/9780691148373.003.0017.
Повний текст джерелаRoach, G. F. "More about wave operators." In An introduction to linear and nonlinear scattering theory, 169–82. Routledge, 2017. http://dx.doi.org/10.1201/9781315137254-6.
Повний текст джерелаТези доповідей конференцій з теми "Linear wave scattering"
Kim, J. W., R. C. Ertekin, and K. J. Bai. "Linear and Non-Linear Wave Models Based on Hamilton’s Principle and Stream-Function Theory: CMSE and IGN." In ASME 2007 26th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2007. http://dx.doi.org/10.1115/omae2007-29747.
Повний текст джерелаZang, J., R. Gibson, P. H. Taylor, R. Eatock Taylor, and C. Swan. "Non-Linear Wave Diffraction Around a Moored Ship." In ASME 2004 23rd International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2004. http://dx.doi.org/10.1115/omae2004-51589.
Повний текст джерелаSwan, Chris, Stephen Masterton, Rizwan Sheikh, and Alessandra Cavalletti. "Wave Forcing and Wave Scattering From a Vertical Surface-Piercing Cylinder." In ASME 2005 24th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2005. http://dx.doi.org/10.1115/omae2005-67158.
Повний текст джерелаWang, Guoyu, and Yongxue Wang. "Wave Scattering From Multiple Horizontal Plates as a Breakwater." In ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/omae2009-79276.
Повний текст джерелаGolato, Andrew, Sridhar Santhanam, Fauzia Ahmad, and Moeness G. Amin. "Scattering of Lamb Waves by a Cylindrical Mass Attached to the Surface of a Plate." In ASME 2016 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/smasis2016-9008.
Повний текст джерелаQureshi, Pierce C., Vincent Ng, Farhan Azeem, Luke S. Trainor, Harald G. L. Schwefel, Stephane Coen, Miro Erkintalo, and Stuart G. Murdoch. "Nonlinear Scattering of Dissipative Solitons in a Kerr Microresonator." In CLEO: QELS_Fundamental Science. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/cleo_qels.2022.fw1b.3.
Повний текст джерелаChen, Tianrun, Michael Fehler, Xinding Fang, Xuefeng Shang, and Dan Burns. "SH wave scattering from fractures using boundary element method with linear slip boundary condition." In SEG Technical Program Expanded Abstracts 2011. Society of Exploration Geophysicists, 2011. http://dx.doi.org/10.1190/1.3627802.
Повний текст джерелаNakagawa, Seiji, and Larry R. Myer. "Fracture permeability and seismic wave scattering—Poroelastic linear‐slip interface model for heterogeneous fractures." In SEG Technical Program Expanded Abstracts 2009. Society of Exploration Geophysicists, 2009. http://dx.doi.org/10.1190/1.3255581.
Повний текст джерелаSheikh, Rizwan, and Chris Swan. "The Interaction Between Steep Waves and a Vertical, Surface-Piercing Column." In ASME 2003 22nd International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2003. http://dx.doi.org/10.1115/omae2003-37154.
Повний текст джерелаArzoumanian, Sevag, and Nigel Peake. "Fluid Structure Interaction With Mean Flow: Over-Scattering and Unstable Resonance Growth." In ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2010. http://dx.doi.org/10.1115/fedsm-icnmm2010-31170.
Повний текст джерелаЗвіти організацій з теми "Linear wave scattering"
Lavery, Andone C. Analysis of High-Frequency Broadband Acoustic Scattering from Non-Linear Internal Waves During SW06. Fort Belvoir, VA: Defense Technical Information Center, September 2009. http://dx.doi.org/10.21236/ada531378.
Повний текст джерелаLavery, Andone C. Continued Analysis of High-Frequency Broadband Acoustic Scattering from Non-Linear Internal Waves during SW06. Fort Belvoir, VA: Defense Technical Information Center, September 2010. http://dx.doi.org/10.21236/ada542102.
Повний текст джерелаLavery, Andone C. High-Frequency Broadband Acoustic Scattering from Temperature and Salinity Microstructure: From Non-Linear Internal Waves to Estuarine Plumes. Fort Belvoir, VA: Defense Technical Information Center, September 2007. http://dx.doi.org/10.21236/ada541144.
Повний текст джерелаLavery, Andone C. Laboratory Measurements of Multi-Frequency and Broadband Acoustic Scattering from Turbulent and Double-Diffusive Microstructure. High-Frequency Broadband Acoustic Scattering from Non-Linear Internal Waves during SW06. Fort Belvoir, VA: Defense Technical Information Center, May 2010. http://dx.doi.org/10.21236/ada521009.
Повний текст джерела