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[null,"1.","Record Nr.",null,"UNINA9910495213403321"]
[null,null,"Autore",null,"Gan Woon Siong"]
[null,null,"Titolo",null,"Time reversal acoustics / / Woon Siong Gan"]
[null,null,"Pubbl/distr/stampa",null,"Gateway East, Singapore : , : Springer, , [2021]"]
[{"$nulls":4},"℗♭2021"]
[null,null,"ISBN",null,"981-16-3235-9"]
[null,null,"Edizione",null,"[1st ed. 2021.]"]
[null,null,"Descrizione fisica",null,"1 online resource (XIV, 107 p. 15 illus., 10 illus. in color.)"]
[null,null,"Disciplina",null,"534"]
[null,null,"Soggetti",null,"Sound-waves"]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,"Nota di contenuto",null,"Symmetry Properties of Acoustic Fields-Time Reversal Symmetry, Reciprocity Theorem -- Time Reversal Acoustics-Helmholtz Wave Equation has both Right Travelling and Left Travelling Wave Solutions -- Time Reversal gives rise to Superresolution -- Application to Nondestructive Evaluation – Experimental Setup and Case Studies -- Application to Medical Ultrasound Imaging -- Application to Underwater Acoustics -- Time Reversal Acoustics and Underwater Communication Technology -- Time Reversal Acoustics and Metamaterials -- Signal Processing -- Conclusions."]
[null,null,null,"Sommario/riassunto","This book highlights time reversal acoustics, techniques based on the symmetry properties of acoustic fields. It has the unique feature that the first eleven chapters of the book are on the indepth studies of the theories of time reversal acoustics. The remaining chapters are on the four major applications of time reversal acoustics, together with their experimental setups and case studies: underwater communication, seismic exploration,nondestructive evaluation, and medical ultrasound imaging.. The gauge invariance approach to acoustic fields, proposed by the author in 2007, is confirmed by the successful fabrication of acoustical metamaterials and the applications of time reversal acoustics to superresolution. The book also presents groundbreaking applications of time reversal acoustics to underwater communication technology and the application of metamaterials to time reversal acoustics."]
[null,"2.","Record Nr.",null,"UNISALENTO991003631189707536"]
[null,null,"Autore",null,"Drew, Allison"]
[null,null,"Titolo",null,"Between empire and revolution : a life of Sidney Bunting, 1873-1936 / by Allison Drew"]
[null,null,"Pubbl/distr/stampa",null,"London : Pickering & Chatto, 2007"]
[null,null,"ISBN",null,"1851968938"]
[null,null,"Descrizione fisica",null,"294 p. : ill. ; 24 cm"]
[null,null,"Collana",null,"Empires in perspective ; 1"]
[null,null,"Disciplina",null,"968.05092"]
[null,null,"Soggetti",null,"Comunisti - Africa del sud - Biografia"]
[{"$nulls":4},"Riforme sociali - Africa del sud - Biografia"]
[{"$nulls":4},"Avvocati - Africa del sud - Biografia"]
[{"$nulls":4},"Bunting, Sidney Percival, 1873-1936"]
[{"$nulls":4},"Bunting, Sidney Percival, 1873-1936"]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,null,"Nota di bibliografia","Include riferimenti bibliografici (p. 225-280) e indice"]
[null,"3.","Record Nr.",null,"UNINA9910144618603321"]
[null,null,"Autore",null,"Siburg Karl Friedrich"]
[null,null,"Titolo",null,"The Principle of Least Action in Geometry and Dynamics / / by Karl Friedrich Siburg"]
[null,null,"Pubbl/distr/stampa",null,"Berlin, Heidelberg : , : Springer Berlin Heidelberg : , : Imprint : Springer, , 2004"]
[null,null,"ISBN",null,"3-540-40985-8"]
[null,null,"Edizione",null,"[1st ed. 2004.]"]
[null,null,"Descrizione fisica",null,"1 online resource (XII, 132 p.)"]
[null,null,"Collana",null,"Lecture Notes in Mathematics, , 0075-8434 ; ; 1844"]
[null,null,"Classificazione",null,"37J05"]
[{"$nulls":4},"53D35"]
[{"$nulls":4},"58E30"]
[null,null,"Disciplina",null,"530"]
[null,null,"Soggetti",null,"Dynamics"]
[{"$nulls":4},"Ergodic theory"]
[{"$nulls":4},"Geometry, Differential"]
[{"$nulls":4},"Global analysis (Mathematics)"]
[{"$nulls":4},"Manifolds (Mathematics)"]
[{"$nulls":4},"Dynamical Systems and Ergodic Theory"]
[{"$nulls":4},"Differential Geometry"]
[{"$nulls":4},"Global Analysis and Analysis on Manifolds"]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,null,"Note generali","Bibliographic Level Mode of Issuance: Monograph"]
[null,null,null,"Nota di bibliografia","Includes bibliographical references and index."]
[null,null,"Nota di contenuto",null,"Aubry-Mather Theory -- Mather-Mané Theory -- The Minimal Action and Convex Billiards -- The Minimal Action Near Fixed Points and Invariant Tori -- The Minimal Action and Hofer's Geometry -- The Minimal Action and Symplectic Geometry -- References -- Index."]
[null,null,null,"Sommario/riassunto","New variational methods by Aubry, Mather, and Mane, discovered in the last twenty years, gave deep insight into the dynamics of convex Lagrangian systems. This book shows how this Principle of Least Action appears in a variety of settings (billiards, length spectrum, Hofer geometry, modern symplectic geometry). Thus, topics from modern dynamical systems and modern symplectic geometry are linked in a new and sometimes surprising way. The central object is Mather’s minimal action functional. The level is for graduate students onwards, but also for researchers in any of the subjects touched in the book."]