00696nam0 2200241 450 00000698420060403102625.088-14-09917-020060403d2002----km-y0itay50------baitaITy-------001yyEsercizi di microeconomiaMarco Novarese, Salvatore RizzelloMilanoGiuffrè2002XI, 94 p.24 cm338.507620Novarese,Marco497484Rizzello,Salvatore121395ITUNIPARTHENOPE20060403RICAUNIMARC000006984Q-000635946NAVA3Esercizi di microeconomia1205484UNIPARTHENOPE04302nam 2200649 450 991046079410332120210512215540.03-11-031129-13-11-038301-210.1515/9783110311297(CKB)3710000000455773(EBL)2127876(SSID)ssj0001530021(PQKBManifestationID)12638477(PQKBTitleCode)TC0001530021(PQKBWorkID)11536304(PQKB)10877742(MiAaPQ)EBC2127876(DE-B1597)207774(OCoLC)918622862(OCoLC)953308037(DE-B1597)9783110311297(Au-PeEL)EBL2127876(CaPaEBR)ebr11084438(CaONFJC)MIL814765(EXLCZ)99371000000045577320150814h20152015 uy 0engurun#---|u||utxtccrThe method of the generalised eikonal new approaches in the diffraction theory /Michael V. VesnikBerlin, [Germany] ;Boston, [Massachusetts] :De Gruyter,2015.©20151 online resource (216 p.)De Gruyter Studies in Mathematical Physics,2194-3532 ;Volume 29Description based upon print version of record.3-11-031130-5 3-11-031112-7 Includes bibliographical references at the end of each chapters and index.Front matter --Preface --Contents --Introduction --1 Method of Generalized Eikonal --2 Solution of Two-dimensional Problems by the Method of Generalized Eikonal --3 Application of Two-dimensional Solutions to Three-dimensional Problems --4 Diffraction by a Plane Perfectly Conducting Angular Sector (Heuristic Approach) --5 Propagation of Radio Waves in Urban Environment (Deterministic Approach) --6 Analytical Heuristic Solution for Wave Diffraction by a Plane Polygonal Scatterer --7 Conclusion --A Application of Stokes Theorem to Diffraction Problems --B Rigorous Two-dimensional Solution for Diffraction by Half-plane --C Application of Imaginary Edge in Diffraction Problems --D Summary of Formulas for Diffraction by Plane Angular Sector --E Fresnel Integral and its Properties --F Generalized Fresnel Integral and Its Properties --G Electromagnetic Wave Diffraction by Semi-transparent Plate in the Physical Optics Approximation --H Generalized Diffraction Coefficient and its Application to Diffraction Problems --Bibliography --Index --BackmatterDiffraction theory describes scattering mechanisms for waves of various physical nature, scattered by objects of different shapes and materials. This book proposes new methods to account for the contour shape, edge profile and boundary conditions of three-dimensional scatterers (in particularly, flat polygons and polyhedrals). A standard method to refine the physical optics approximation (PO) is the heuristic method of edge waves (MEW). In comparison with MEW, the presented approaches simplify the solving and refining the PO approximation without solving a corresponding two-dimensional problem. Furthermore these methods allow to take into account the field perturbation in the vicinity of vertices. While the analytical formulas obtained by using these new approaches are as simple as in the PO case, the accuracy can be even higher than for MEW. On the basis of the developed methods construction of solutions for wave propagation in urban area and elastic wave diffraction (including seismic waves) are proposed. The book is useful for specialists who solve scientific and engineering problems in wave propagation and for students and postgraduate students.De Gruyter studies in mathematical physics ;Volume 29.DiffractionMathematicsElectronic books.DiffractionMathematics.535/.42Vesnik Michael V.1038681Yakush Sergey1038682MiAaPQMiAaPQMiAaPQBOOK9910460794103321The method of the generalised eikonal2460421UNINA01428nam 2200373Ia 450 99639740640331620200824132531.0(CKB)4940000000058575(EEBO)2240909655(OCoLC)ocm12987520e(OCoLC)12987520(EXLCZ)99494000000005857519860107d1642 uy |engurbn||||a|bb|Reformation and desolation, or, A sermon tending to the discovery of the symptomes of a people to whom God will by no meanes be reconciled[electronic resource] preached to the Honourable House of Commons at their late solemne fast, Decemb. 22, 1641 /by Stephen Marshall ..London Printed for Samuel Gellibrand ...1642[4], 52 p"Published by order of that House"Reproduction of original in Princeton University Library.eebo-0129Fast-day sermonsSermons, English17th centuryFast-day sermons.Sermons, EnglishMarshall Stephen1594?-1655.1001459EAAEAAm/cWaOLNBOOK996397406403316Reformation and desolation, or, A sermon tending to the discovery of the symptomes of a people to whom God will by no meanes be reconciled2336094UNISA