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AbstractAbstract
[en] This is the continuation of the series reporting MORD studies to typical problem in Chemistry and Polymer Science. In our earlier papers the MORDsup1.2 studied only in visible region. In this present investigation we extended the application of the New Dispersion Relation in IR region to determine the MORD and tested to some simple systems
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Journal Article
Journal
ASEAN Journal on Science and Technology for Development; ISSN 0217-5460;
; v. 11(2); p. 11-13

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Carlson, B.V.; Frederico, T.; Hussein, M.S.; Esbensen, H.; Landowne, S.
Sao Paulo Univ., SP (Brazil). Inst. de Fisica1989
Sao Paulo Univ., SP (Brazil). Inst. de Fisica1989
AbstractAbstract
[en] It is shown formally that the real and imaginary parts of the effective potential operator for scattering problems obey a dispersion relation even when the hamiltonian is not hermitian. Model calculations are used to demonstrate that the equivalent local potential also satisfies the dispersion relation when absorption is present. It is also shown that the equivalent local potential is insensitive to the bare potential used in the entrance channel. (author)
[pt]
E demonstrado formalmente que as partes real e imaginaria do operador potencial efetivo para problemas de espalhamento obedecem a relacao de dispersao mesmo quando a hamiltoniana nao e hermitiana. Sao usados calculos do modelo para demonstrar que o potencial local equivalente tambem satisfaz a relacao de dispersao quando a absorsao esta presente. Demonstra-se tambem que o potencial local equivalente e insensivel ao potencial nu usado no canal de entrada. (A.C.A.S.)Primary Subject
Source
Aug 1989; 14 p
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Report
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Khromova, I. A.; Melnikov, L. A., E-mail: KhromovaIA@yandex.ru, E-mail: lam@sgu.ru2007
AbstractAbstract
[en] This work is devoted to the study of hollow-core photonic crystal fibers (HCPCF) dispersion properties. An effective scheme of HCPCF eigenmodes analysis, lying in separate dispersion diagrams calculation for the cladding and for the HCPCF itself, was proposed. General recommendations concerning selection of proper fiber parameters were given.
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Available from http://link.springer.com/openurl/pdf?id=doi:10.1134/S1547477107020197; Copyright (c) 2007 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
Journal
Physics of Particles and Nuclei Letters (Print); ISSN 1547-4771;
; v. 4(2); p. 176-179

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Sharma, A.S.
3. International congress on waves and instabilities in plasmas. June 27 - July 1, 1977, Palaiseau, France
3. International congress on waves and instabilities in plasmas. June 27 - July 1, 1977, Palaiseau, France
AbstractAbstract
No abstract available
Primary Subject
Source
p. 99; nd; p. 99; Ecole Polytechnique; Palaiseau, France; 3. International congress on waves and instabilities in plasmas; Palaiseau, France; 27 Jun - 1 Jul 1977; Available from: Ecole Polytechnique, Lab. PMI, 91128 Palaiseau Cedex, France; Published in abstract form only.
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Book
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Conference
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Moreau, D.
Association Euratom-CEA sur la Fusion, Centre d'Etudes Nucleaires de Fontenay-aux-Roses, 92 (France). Dept. de Physique du Plasma et de la Fusion Controlee1979
Association Euratom-CEA sur la Fusion, Centre d'Etudes Nucleaires de Fontenay-aux-Roses, 92 (France). Dept. de Physique du Plasma et de la Fusion Controlee1979
AbstractAbstract
[en] Two different methods are commonly used in the literature to derive parametric dispersion relations, the 'oscillating reference frame' technique (Silin) and the perturbative method. It has been argued, paradoxally, that they lead to different dispersion relations. We show that they are indeed quite equivalent provided that the coupling equations be developped up to second order in the pump field. The perturbative method as used by many authors, i.e. truncated at first order in the pump, is shown to be valid for resonant decay only. For studying the excitation of 'quasimodes' one must write coupling equations containing the square of the pump amplitude
[fr]
Deux methodes differentes sont couramment utilisees dans la litterature pour obtenir les relations de dispersion parametriques, la methode du 'repere oscillant' et la methode perturbative. Paradoxalement, il a ete pretendu qu'elles conduisaient a des relations de dispersion differentes. On montre qu'elles sont en realite tout a fait equivalentes si l'on developpe les equations de couplage au deuxieme ordre dans l'amplitude de la 'pompe'. La methode perturbative telle qu'elle est utilisee par de nombreux auteurs, c'est-a-dire tronquee au premier ordre dans l'amplitude de la 'pompe', se trouve etre suffisante seulement pour la decomposition parametrique resonnante. Par contre pour l'etude des 'quasimodes' on doit ecrire les equations du couplage contenant les termes proportionnels au carre de l'amplitude de la 'pompe'Original Title
Remarques sur les differentes methodes de derivation des relations de dispersion parametriques
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Sep 1979; 30 p
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AbstractAbstract
[en] An FFAG synchrotron differs from a synchrocyclotron by having a large radial field gradient; this large gradient greatly reduces the magnet volume while maintaining stable orbits for all energies, but it does induce substantial nonlinearities. A decade ago, the author proposed a dispersion-free insertion for an FFAG that provides regions of small volume for rf cavities, strippers, and injection and extraction elements, similar to a normal synchrotron. Here the author exploits this insertion to provide compensation of the lower order nonlinear driving fields, thereby greatly increasing the dynamic aperture as compared to an FFAG without insertions. The correction fields may be programmed to track the momentum or may be static, providing full compensation at the injection energy
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Source
Institute of Electrical and Electronics Engineers, Inc., New York, NY (United States); American Physical Society, Washington, DC (United States); 829 p; 1993; p. 3825-3827; PAC '93: international particle accelerator conference; Washington, DC (United States); 17-20 May 1993; Available from IEEE Service Center, 445 Hoes Lane, Piscataway, NJ 08854-4150
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Report
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Vinh Mau, R.
Paris-11 Univ., 91 - Orsay (France). Inst. de Physique Nucleaire1978
Paris-11 Univ., 91 - Orsay (France). Inst. de Physique Nucleaire1978
AbstractAbstract
[en] The present status of the dispersion theoretical approach to nuclear forces is reviewed
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Sep 1978; 7 p; 8. International conference on few body systems and nuclear forces; Graz, Austria; 24 - 30 Aug 1978
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Report
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Tkachenko, V.I.; Shcherbinin, V.I.; Tkachenko, V.I.
Book of abstracts of the 9th Conference on High Energy Physics, Nuclear Physics and Accelerators2011
Book of abstracts of the 9th Conference on High Energy Physics, Nuclear Physics and Accelerators2011
AbstractAbstract
No abstract available
Original Title
Dispersionnoe uravnenie dlya periodicheskogo plazmennogo volnovoda s proizvol'noj formoj gofra
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Source
Natsional'naya Akademiya Nauk Ukrainy, Kyiv (Ukraine); Natsional'nyj Nauchnyj Tsentr Khar'kovskij Fiziko-Tekhnicheskij Institut , Khar'kov (Ukraine); Institut Fiziki Vysokikh Ehnergij i Yadernoj Fiziki, Khar'kov (Ukraine); 120 p; 2011; p. 89; 9. Conference on High Energy Physics, Nuclear Physics and Accelerators; Tezisy dokladov 9-j konferentsii po fizike vysokikh ehnergij, yadernoj fizike i uskoritelyam; Kharkov (Ukraine); 21-25 Feb 2011; Available from Ukrainian INIS Centre
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AbstractAbstract
No abstract available
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Journal Article
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Physical Review. D, Particles Fields; v. 6(11); p. 3333-3335
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Chairns, I.H.
Proceeding of an International school and workshop on Plasma astrophysics, 24 August-3 September 1988, Varenna, Italy1989
Proceeding of an International school and workshop on Plasma astrophysics, 24 August-3 September 1988, Varenna, Italy1989
AbstractAbstract
[en] Space and astrophysical Alfven waves usually excist in a plasma containing thermal and nonthermal particles, and generally the thermal electron and ions have unequal number densities. Nevertheless, the linear properties of the waves are invariably assumed to be determined by a chargeneutral thermal plasma in the absence of the nonthermal particles, while the nonthermal particles cause growth or additional damping superposed onto the background model. Here, both analytic plasma theory and numerical solutions of the dispersion equation, unequal thermal electron and ion number densities (due to the presence of the nonthermal particles) may cause fundamental low wavenumber modifications to the Alfven modes, including the creation of a new resonance and severely modified dispersion. Thes results are found for both cold and warm plasmas. Previous work on Alfven waves should be re-evaluated in view of these results. (author). 6 refs.; 2 figs
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Guyenne, T.D.; Hunt, J.J. (European Space Research and Technology Centre, Noordwijk (Netherlands)) (eds.); ESA-SP; no. 285 (v. 1); 414 p; 1989; p. 239-242; ESTEC; Noordwijk (Netherlands); Joint Varenna-Abastumani international school and workshop on plasma astrophysics; Varenna (Italy); 24 Aug - 3 Sep 1988; ISSN 0379-6566; 

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