Relevant bibliographies by topics / Bessel

Academic literature on the topic 'Bessel'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 June 2024

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Journal articles on the topic "Bessel"

1

Novelli, Jean-Christophe, and Jean-Yves Thibon. "Noncommutative Symmetric Bessel Functions." Canadian Mathematical Bulletin 51, no. 3 (September 1, 2008): 424–38. http://dx.doi.org/10.4153/cmb-2008-043-3.

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AbstractThe consideration of tensor products of 0-Hecke algebramodules leads to natural analogs of the BesselJ-functions in the algebra of noncommutative symmetric functions. This provides a simple explanation of various combinatorial properties of Bessel functions.
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Daher, Radouan, and Mohamed El Hamma. "Bessel Transform of -Bessel Lipschitz Functions." Journal of Mathematics 2013 (2013): 1–3. http://dx.doi.org/10.1155/2013/418546.

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Lenyuk, M. P. "Hybrid integral transformations (Bessel, Legendre, Bessel)." Ukrainian Mathematical Journal 43, no. 6 (June 1991): 719–28. http://dx.doi.org/10.1007/bf01058939.

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Joshi, C. M., and S. K. Bissu. "Some inequalities of Bessel and modified Bessel functions." Journal of the Australian Mathematical Society. Series A. Pure Mathematics and Statistics 50, no. 2 (April 1991): 333–42. http://dx.doi.org/10.1017/s1446788700032791.

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AbstractTwo-sided inequalties for the ratio of modified Bessel functions of first kind are given, which provide sharper upper and lower bounds than had been known earlier. Wronskian type inequalities for Bessel functions are proved, and in the sequel alternative proofs of Turan-type inequalities for Bessel and modified Bessel functions are also discussed. These then lead to a two-sided inequality for Bessel functions. Also incorporated in the discussion is an inequality for the ratio of two Bessel functions for 0 < x < 1. Verifications of these inequalities are pointed out numerically.
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Ifantis, E. K., and P. D. Siafarikas. "Inequalities involving Bessel and modified Bessel functions." Journal of Mathematical Analysis and Applications 147, no. 1 (March 1990): 214–27. http://dx.doi.org/10.1016/0022-247x(90)90394-u.

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Nahid, Tabinda, and Mahvish Ali. "Several characterizations of Bessel functions and their applications." Georgian Mathematical Journal 29, no. 1 (October 10, 2021): 83–93. http://dx.doi.org/10.1515/gmj-2021-2108.

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Abstract The present work deals with the mathematical investigation of some generalizations of Bessel functions. The main motive of this paper is to show that the generating function can be employed efficiently to obtain certain results for special functions. The complex form of Bessel functions is introduced by means of the generating function. Certain enthralling properties for complex Bessel functions are investigated using the generating function method. By considering separately the real and the imaginary part of complex Bessel functions, we get respectively cosine-Bessel functions and sine-Bessel functions for which several novel identities and Jacobi–Anger expansions are established. Also, the generating function of degenerate Bessel functions is investigated and certain novel identities are obtained for them. A hybrid form of degenerate Bessel functions, namely, of degenerate Fubini–Bessel functions, is constructed using the replacement technique. Finally, the explicit forms of the real and the imaginary part of complex Bessel functions are established by a hypergeometric approach.
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Satsanit. "On the Bessel Operator Related to Bessel Wave Equation and Laplace Bessel Equation." Journal of Advanced Research in Applied Mathematics 6, no. 2 (March 1, 2014): 82–98. http://dx.doi.org/10.5373/jaram.1730.041513.

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Dixit, M. M., C. P. Pandey, and Deepanjan Das. "The continuous generalized wavelet transform associated with q-Bessel operator." Boletim da Sociedade Paranaense de Matemática 41 (December 21, 2022): 1–10. http://dx.doi.org/10.5269/bspm.52810.

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The continuous generalized wavelet transform associated with -Bessel operator is defined, which will invariably be called continuous -Bessel wavelet transform . Certain and boundedness results and inversion formula for continuous -Bessel wavelet transform are obtained. Discrete -Bessel wavelet transform is defined and a reconstruction formula is derived for discrete- Bessel wavelet.
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Hu, X., H. Wang, and D. S. Guo. "Phased Bessel functions." Canadian Journal of Physics 86, no. 7 (July 1, 2008): 863–70. http://dx.doi.org/10.1139/p08-009.

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In the study of photon-state transitions, we found a natural extension of the first kind of Bessel functions that extends both the range and domain of the Bessel functions from the real number field to the complex number field. We term the extended Bessel functions as phased Bessel functions. This extension is completely different from the traditional “analytical extension”. The new complex Bessel functions satisfy addition, subtraction, and recurrence theorems in a complex range and a complex domain. These theorems provide short cuts in calculations. The single-phased Bessel functions are generalized to multiple-phased Bessel functions to describe various photon-state transitions.PACS Nos.: 02.30.Gp, 32.80.Rm, 42.50.Hz
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Upadhyay, S. K., Reshma Singh, and Alok Tripathi. "The relation between Bessel wavelet convolution product and Hankel convolution product involving Hankel transform." International Journal of Wavelets, Multiresolution and Information Processing 15, no. 04 (March 21, 2017): 1750030. http://dx.doi.org/10.1142/s0219691317500308.

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In this paper, the relation between Bessel wavelet convolution product and Hankel convolution product is obtained by using the Bessel wavelet transform and the Hankel transform. Approximation results of the Bessel wavelet convolution product are investigated by exploiting the Hankel transformation tool. Motivated from the results of Pinsky, heuristic treatment of the Bessel wavelet transform is introduced and other properties of the Bessel wavelet transform are studied.
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Dissertations / Theses on the topic "Bessel"

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Elad, Altman Henri. "Integration by parts formulae for the laws of Bessel bridges, and Bessel stochastic PDEs." Thesis, Sorbonne université, 2019. http://www.theses.fr/2019SORUS441.

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Dans cette thèse, nous obtenons des formules d’intégration par parties pour les lois de ponts de Bessel de dimension δ > 0, étendant ainsi les formules précédemment obtenues par Zambotti dans le cas δ ≥ 3. Ceci nous permet d’identifier la structure de certaines EDP stochastiques (EDPS) ayant la loi d’un pont de Bessel de dimension δ ∈ (0, 3) pour mesure invariante, et qui étendent de manière naturelle les EDPS considérées précédemment par Zambotti dans le cas δ ≥ 3. Nous nommons ces équations EDPS de Bessel, et les écrivons à l’aide de temps locaux renormalisés. Dans les cas particuliers δ = 1, 2, en utilisant la théorie des formes de Dirichlet, nous construisons une solution d’une version faible de ces EDPS. Nous prouvons également plusieurs résultats partiels qui suggèrent que les EDPS de Bessel de paramètre δ < 3 possèdent certaines propriétés importantes: propriété de Feller forte, existence de temps locaux. Enfin, nous considérons différents modèles de pinning critiques dynamiques, discret et continu, et prouvons un résultat de tension. Nous conjecturons que ces modèles ont une même limite en loi décrite par l’EDPS de Bessel associée à δ = 1
In this thesis, we derive integration by parts formulae (IbPF) for the laws of Bessel bridges of dimension δ > 0, thus extending previous formulae obtained by Zambotti in the case δ ≥ 3. This allows us to identify the structure of some stochastic PDEs (SPDEs) having the law of a Bessel bridge of dimension δ < 3 as invariant measure, and which extend in a natural way the family of SPDEs previously considered by Zambotti for δ ≥ 3. We call these equations Bessel SPDEs, and write them using renormalized local times. In the particular cases δ = 1, 2, using Dirichlet forms, we construct a solution to a weak version of these SPDEs. We also provide several partial results suggesting that the SPDEs associated with δ < 3 should have several important properties: strong Feller property, existence of local times. Finally, we consider dynamical critical wetting models, in the discrete and in the continuum, and prove a tightness result. We conjecture that these models have a common limit in law which should be described by the Bessel SPDE associated with δ = 1
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Maahs, Ilse [Verfasser], and Hans Rudolf [Akademischer Betreuer] Lerche. "Curved boundary crossing of bessel processes." Freiburg : Universität, 2016. http://d-nb.info/1119717701/34.

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Dallaire, Michael. "Faisceaux Bessel spatiotemporels : théorie et expérimentation." Thesis, Université Laval, 2013. http://www.theses.ulaval.ca/2013/29894/29894.pdf.

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Les travaux présentés dans cette thèse portent en premier lieu sur l’établissement d’un modèle théorique décrivant une nouvelle famille de faisceaux invariants reposant sur une distribution correspondant à la fonction de Bessel dans le plan spatiotemporel, d’où leur nom de faisceaux Bessel spatiotemporels (BST). Le modèle analytique décrivant ces faisceaux n’a pas de bornes physiques, ce qui se traduit par une impossibilité de les générer expérimentalement. Il est cependant possible dans les faits de limiter l’étendue spatiale et temporelle de ceux-ci en utilisant par exemple une enveloppe gaussienne, dont la taille est variable. La limitation physique par enveloppe gaussienne altère la nature invariante des faisceaux BST en introduisant une dépendance spatiale qui affecte de manière plus ou moins prononcée leur invariance, selon que la taille de l’enveloppe est petite ou large relativement à la structure interne du faisceau. Un modèle théorique présente par la suite les caractéristiques physiques des faisceaux BST limités par une enveloppe gaussienne, appelés faisceaux Bessel-Gauss spatiotemporels (BGST). Une méthode expérimentale de génération des faisceaux BGST centrés à 800 nm est également présentée. Les méthodes de caractérisation reposent quant à elles sur l’analyse du profil spatial, temporel et du spectre résolu spatialement (SRS). Le SRS permet d’obtenir la distribution des longueurs d’onde en fonction de la position transversale du faisceau, et permet une reconstruction partielle de la structure spatiotemporelle des faisceaux BGST via une transformée de Fourier. Les méthodes d’analyse développées ont permis de comparer les faisceaux générés expérimentalement avec les modèles théoriques pour en faire ressortir une très bonne correspondance.
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Noshirvani, Allahabadi Golchehr, and Allahabadi Golchehr Noshirvani. "Bessel Light Sheet Structured Illumination Microscopy." Diss., The University of Arizona, 2016. http://hdl.handle.net/10150/621810.

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Biomedical study researchers using animals to model disease and treatment need fast, deep, noninvasive, and inexpensive multi-channel imaging methods. Traditional fluorescence microscopy meets those criteria to an extent. Specifically, two-photon and confocal microscopy, the two most commonly used methods, are limited in penetration depth, cost, resolution, and field of view. In addition, two-photon microscopy has limited ability in multi-channel imaging. Light sheet microscopy, a fast developing 3D fluorescence imaging method, offers attractive advantages over traditional two-photon and confocal microscopy. Light sheet microscopy is much more applicable for in vivo 3D time-lapsed imaging, owing to its selective illumination of tissue layer, superior speed, low light exposure, high penetration depth, and low levels of photobleaching. However, standard light sheet microscopy using Gaussian beam excitation has two main disadvantages: 1) the field of view (FOV) of light sheet microscopy is limited by the depth of focus of the Gaussian beam. 2) Light-sheet images can be degraded by scattering, which limits the penetration of the excitation beam and blurs emission images in deep tissue layers. While two-sided sheet illumination, which doubles the field of view by illuminating the sample from opposite sides, offers a potential solution, the technique adds complexity and cost to the imaging system. We investigate a new technique to address these limitations: Bessel light sheet microscopy in combination with incoherent nonlinear Structured Illumination Microscopy (SIM). Results demonstrate that, at visible wavelengths, Bessel excitation penetrates up to 250 microns deep in the scattering media with single-side illumination. Bessel light sheet microscope achieves confocal level resolution at a lateral resolution of 0.3 micron and an axial resolution of 1 micron. Incoherent nonlinear SIM further reduces the diffused background in Bessel light sheet images, resulting in confocal quality images in thick tissue. The technique was applied to live transgenic zebra fish tg(kdrl:GFP), and the sub-cellular structure of fish vasculature genetically labeled with GFP was captured in 3D. The superior speed of the microscope enables us to acquire signal from 200 layers of a thick sample in 4 minutes. The compact microscope uses exclusively off-the-shelf components and offers a low-cost imaging solution for studying small animal models or tissue samples.
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Dallaire, Michaël. "Faisceaux Bessel spatiotemporels : théorie et expérimentation." Doctoral thesis, Université Laval, 2013. http://hdl.handle.net/20.500.11794/24630.

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Les travaux présentés dans cette thèse portent en premier lieu sur l’établissement d’un modèle théorique décrivant une nouvelle famille de faisceaux invariants reposant sur une distribution correspondant à la fonction de Bessel dans le plan spatiotemporel, d’où leur nom de faisceaux Bessel spatiotemporels (BST). Le modèle analytique décrivant ces faisceaux n’a pas de bornes physiques, ce qui se traduit par une impossibilité de les générer expérimentalement. Il est cependant possible dans les faits de limiter l’étendue spatiale et temporelle de ceux-ci en utilisant par exemple une enveloppe gaussienne, dont la taille est variable. La limitation physique par enveloppe gaussienne altère la nature invariante des faisceaux BST en introduisant une dépendance spatiale qui affecte de manière plus ou moins prononcée leur invariance, selon que la taille de l’enveloppe est petite ou large relativement à la structure interne du faisceau. Un modèle théorique présente par la suite les caractéristiques physiques des faisceaux BST limités par une enveloppe gaussienne, appelés faisceaux Bessel-Gauss spatiotemporels (BGST). Une méthode expérimentale de génération des faisceaux BGST centrés à 800 nm est également présentée. Les méthodes de caractérisation reposent quant à elles sur l’analyse du profil spatial, temporel et du spectre résolu spatialement (SRS). Le SRS permet d’obtenir la distribution des longueurs d’onde en fonction de la position transversale du faisceau, et permet une reconstruction partielle de la structure spatiotemporelle des faisceaux BGST via une transformée de Fourier. Les méthodes d’analyse développées ont permis de comparer les faisceaux générés expérimentalement avec les modèles théoriques pour en faire ressortir une très bonne correspondance.
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Fay, TH, and PH Kloppers. "The Gibbs’ phenomenon for Fourier–Bessel series." International Journal of Mathematical Education in Science and Technology, 2003. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1001984.

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Summary The paper investigates the Gibbs’ phenomenon at a jump discontinuity for Fourier–Bessel series expansions. The unexpected thing is that the Gibbs’ constant for Fourier–Bessel series appears to be the same as that for Fourier series expansions. In order to compute the coefficients for Fourier–Bessel functionsefficiently, several integral formulasare derived and the Struve functions and their asymptotic expansions discussed, all of which significantly ease the computations. Three numerical examples are investigated. Findings suggest further investigations suitable for undergraduate research projects or small student group investigations.
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Omoefe, Idisi David, and Andrew Forbes. "Creation and detection of Vector Bessel Beams." Thesis, University of Fort Hare, 2016. http://hdl.handle.net/10353/1785.

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Bessel beams are optical fields which falls into the category of non-diffracting beams. Vector Bessel beams are vector beams possessing cylindrical symmetry. Cylindrically symmetric beams tend to have a tight focal point during propagation. The tight focal beam nature of vector Bessel beams makes them a good potential in various facets of science such as biological optical trapping, wireless communications, remote sensing, microscopy etc. In this research work, vector Bessel beams were generated using the phase of an Axicon that was encoded into a spatial light modulator. Firstly, scalar Bessel beams which possess linear polarization were generated and converted to circularly polarized vector beams by the use of a q-plate. The orbital angular momentum (OAM) modes that are embedded in the vortex beams were detected using modal decomposition technique. This was implemented for both the scalar and vector case using a quarter wave plate. The measure of the degree of non-separability of the vector Bessel beams using tomographic quantum tools was also implemented where the density matrix was reconstructed. The concurrence and fidelity which explore the measure of vectorness of both scalar and vector Bessel beams were calculated from the density matrix. The obtained results show that the spatial modes and polarization are coupled in the vector case as expected.
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Qi, Zhi. "Theory of Bessel Functions of High Rank." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1428530485.

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Ouadghiri, Idrissi Ismail. "Nonlinear instabilities and filamentation of Bessel beams." Thesis, Bourgogne Franche-Comté, 2018. http://www.theses.fr/2018UBFCD071/document.

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Un faisceau de Bessel est un champ électromagnétique résistant à la diffraction. il peut se propager en préservant son profile transversal d'intensité même en régime de filamentation. Ceci est très avantageux pour les applications laser de haute puissance, en particulier parce qu’ils permettent de générer des canaux de plasma homogènes dans les diélectriques. Cependant, à haute intensité, les impulsions laser ultracourtes subissent, dans certaines conditions expérimentales (faible focalisation), des instabilités non linéaires entraînant la modulation d’intensité du lobe central au cours de la propagation, ce qui peut être néfaste pour ces applications comme l’usinage des matériaux transparents. L’objectif de cette thèse est de contrôler la génération de canaux de plasma par impulsions de Bessel via le contrôle du profil spatial de ces impulsions. Nous avons dans une première partie, développé une méthode expérimentale pour manipuler le profil d’intensité axiale en régime linéaire. La seconde partie concerne l’étude et le contrôle des instabilités non linéaires induites par l’effet Kerr. Nous avons développé un modèle théorique du mélange à quatre ondes dans les faisceaux de Bessel et avons démontré une nouvelle approche pour manipuler ces instabilités par une mise en forme appropriée de l’intensité axiale des faisceaux de Bessel. Nous avons ensuite étudié la validité des modèles de filamentation basés l’équation non linéaire de Schrödinger et le modèle de Drude. Les résultats expérimentaux de la filamentation des faisceaux de Bessel dans le verre ont montré un comportement invariant par propagation, contrairement aux modèles numériques. Nous avons testé et amendé les modèles de dynamiques de plasma et de propagation. Nos simulations sont comparées à des résultats expérimentaux. Nous montrons que les corrections que nous avons pu apporter par rapport à l’état de l’art sont insuffisantes et rendent nécessaire une autre forme de modèle
Bessel beams are solutions of Helmholtz equation. They can propagate while conserving their transverse intensity profile in space even in filamentation regime. This feature is very advantageous in high power laser applications such as plasma waveguide generation and laser ablation because they can generate homogeneous plasma channels in dielectrics. However, for moderate to low focusing conditions, Bessel pulses can sustain nonlinear instabilities, which consist in the modulation of the central core intensity along the propagation. Such a feature can prevent efficient energy deposition which hampers the applicability of Bessel pulses. The aim of this thesis is to investigate the possibility to control laser-generated plasma channels using spatially-reshaped Bessel pulses. In a first part, we have developed an experimental method based on a spatial light modulator to modify the evolution of the on-axis intensity of Bessel beams in the linear propagation regime. To study and control Kerr-induced instabilities, we developed, in a second part, a novel model based on four wave mixing interactions in Bessel beams. We have then demonstrated a novel approach to control these instabilities via on-axis intensity shaping. Bessel filamentation models in transparent media were then studied. Most models used in literature are based on nonlinear Schrödinger equation for light propagation and Drude model for laser-matter coupling. Experimental results on Bessel filamentation in glass showed propagation-invariant features in contrast with numerical simulations. Several corrections to this model were discussed. Our results show that such models are insufficient to explain our experimental results and thus the need to develop a more suitable one
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Fortin, Pierre-Yves. "Figure d'interférence par faisceaux Bessel, étude et applications." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq33637.pdf.

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Books on the topic "Bessel"

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Bessel functions and their applications. Boca Raton: Chapman & Hall/CRC, 2002.

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Watson, G. N. A treatise on the theory of Bessel functions. 2nd ed. Cambridge [England]: Cambridge University Press, 1995.

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Generalized Bessel functions of the first kind. Heidelberg: Springer, 2010.

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Lawrynowicz, Kasimir. Friedrich Wilhelm Bessel 1784–1846. Basel: Birkhäuser Basel, 1995. http://dx.doi.org/10.1007/978-3-0348-9069-4.

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Center, Lewis Research, ed. Review of nondiffracting Bessel beams. Brook Park, Ohio: Sverdrup Technology Lewis Research Center Group, 1991.

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Lavrinovich, K. K. Friedrich Wilhelm Bessel, 1784-1846. Basel: Boston, 1995.

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Cholewinski, Frank M. The finite calculus associated with Bessel functions. Providence, R.I: American Mathematical Society, 1988.

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Rappoport, I︠U︡ M. Metody vychislenii︠a︡ i tablit︠s︡y modifit︠s︡irovannykh funkt︠s︡iĭ Besseli︠a︡: Uchebnoe posobie. Moskva: MATI, 2008.

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Rappoport, I︠U︡ M. Metody vychislenii︠a︡ i tablit︠s︡y modifit︠s︡irovannykh funkt︠s︡iĭ Besseli︠a︡: Uchebnoe posobie. Moskva: MATI, 2008.

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Bessel, ou, Le rêve brisé: Nouvelle. Dakar, Senegal: abis éditions, 2013.

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Book chapters on the topic "Bessel"

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Mitschke, Fedor. "Bessel Functions." In Fiber Optics, 319–22. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-52764-1_15.

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Akhmedova, Valeriya, and Emil T. Akhmedov. "Bessel Functions." In SpringerBriefs in Physics, 41–64. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-35089-5_5.

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Katori, Makoto. "Bessel Processes." In Bessel Processes, Schramm–Loewner Evolution, and the Dyson Model, 1–39. Singapore: Springer Singapore, 2015. http://dx.doi.org/10.1007/978-981-10-0275-5_1.

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Zambotti, Lorenzo. "Bessel Processes." In Lecture Notes in Mathematics, 31–57. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-52096-4_3.

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Mitschke, Fedor. "Bessel Functions." In Fiber Optics, 265–67. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03703-0_15.

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Beebe, Nelson H. F. "Bessel functions." In The Mathematical-Function Computation Handbook, 693–762. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-64110-2_21.

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Koranga, Bipin Singh, Sanjay Kumar Padaliya, and Vivek Kumar Nautiyal. "Bessel Function." In Special Functions and their Application, 49–63. New York: River Publishers, 2022. http://dx.doi.org/10.1201/9781003339595-4.

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Zhu, Yichao. "Bessel Functions." In Equations and Analytical Tools in Mathematical Physics, 165–97. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-5441-1_5.

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Zhu, Yichao. "Bessel Functions." In Equations and Analytical Tools in Mathematical Physics, 165–97. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-5441-1_5.

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Nikiforov, Arnold F., and Vasilii B. Uvarov. "Bessel Functions." In Special Functions of Mathematical Physics, 201–51. Boston, MA: Birkhäuser Boston, 1988. http://dx.doi.org/10.1007/978-1-4757-1595-8_3.

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Conference papers on the topic "Bessel"

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Masirevic, Dragana Jankov, Tibor K. Pogany, Arpad Bariez, and Aurel Galantai. "Sampling bessel functions and bessel sampling." In 2013 IEEE 8th International Symposium on Applied Computational Intelligence and Informatics (SACI). IEEE, 2013. http://dx.doi.org/10.1109/saci.2013.6608942.

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Salamin, Yousef I. "Bessel-Bessel Laser Bullets: Fields and Propagation Characteristics." In Advanced Solid State Lasers. Washington, D.C.: OSA, 2019. http://dx.doi.org/10.1364/assl.2019.jw2a.46.

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Litvin, Igor A., Melanie G. McLaren, and Andrew Forbes. "Propagation of obstructed Bessel and Bessel-Gauss beams." In Optical Engineering + Applications, edited by Andrew Forbes and Todd E. Lizotte. SPIE, 2008. http://dx.doi.org/10.1117/12.793695.

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Sakah, Mahmud, and Brahim Chebbi. "Laser Bessel velocimtery." In 2015 Photonics North. IEEE, 2015. http://dx.doi.org/10.1109/pn.2015.7292500.

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Trichili, Abderrahmen, Thandeka Mhlanga, Yaseera Ismail, Filippus S. Roux, Melanie McLaren, Mourad Zghal, and Andrew Forbes. "Detecting Bessel beams." In SPIE Optical Engineering + Applications, edited by Andrew Forbes and Todd E. Lizotte. SPIE, 2014. http://dx.doi.org/10.1117/12.2061372.

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Khonina, Svetlana N., and Victor V. Kotlyar. "Bessel-mode formers." In Digital Image Processing and Computer Graphics: Fifth International Workshop, edited by Nikolai A. Kuznetsov and Victor A. Soifer. SPIE, 1995. http://dx.doi.org/10.1117/12.199633.

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McLaren, Melanie, Thandeka Mhlanga, Miles J. Padgett, Filippus S. Roux, and Andrew Forbes. "Entangled Bessel beams." In SPIE Optical Engineering + Applications, edited by Andrew Forbes and Todd E. Lizotte. SPIE, 2014. http://dx.doi.org/10.1117/12.2066369.

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Yu, Yanzhong, and Wenbin Dou. "Bessel-Gauss resonator." In 2010 International Conference on Microwave and Millimeter Wave Technology (ICMMT). IEEE, 2010. http://dx.doi.org/10.1109/icmmt.2010.5524925.

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Dallaire, Michael, Nathalie McCarthy, and Michel Piché. "Spatiotemporal Bessel beams." In Photonics North 2007, edited by John Armitage. SPIE, 2007. http://dx.doi.org/10.1117/12.779074.

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Prokudin, Alexei, Leonard Gamberg, Harut Avakian, and Patrizia Rossi. "Bessel Weighted Asymmetries." In QCD Evolution 2015. Trieste, Italy: Sissa Medialab, 2016. http://dx.doi.org/10.22323/1.249.0042.

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Reports on the topic "Bessel"

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Boisvert, Ronald F., and Bonita V. Saunders. Portable vectorized software for Bessel function evaluation. Gaithersburg, MD: National Institute of Standards and Technology, 1991. http://dx.doi.org/10.6028/nist.ir.4615.

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Major, J. R. Automated measurement of frequency response of frequency-modulated generators using the Bessel null method. Gaithersburg, MD: National Bureau of Standards, 1986. http://dx.doi.org/10.6028/nbs.tn.1093.

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Qin, Hong, Cynthia K. Phillips, and Ronald C. Davidson. Response to "Comment on ' A New Derivation of the Plasma Susceptibility Tensor for a Hot Magnetized Plasma Without Infinite Sums of Products of Bessel Functions'. Office of Scientific and Technical Information (OSTI), February 2008. http://dx.doi.org/10.2172/960232.

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Geyer, Anton, Simon Pohn-Weidinger, and Karin Grasenick. Evaluation der Forschungspreis-Programme der Alexander von Humboldt-Stiftung. Endbericht. Alexander von Humboldt-Stiftung, October 2019. http://dx.doi.org/10.22163/fteval.2019.585.

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Die Alexander von Humboldt-Stiftung (AvH) verleiht seit 1972 Humboldt-Forschungspreise. Mit dem Preis werden hochrenommierte Wissenschaftler/innen aus dem Ausland für ihr wissenschaftliches Gesamtschaffen ausgezeichnet. Zusätzlich vergibt die AvH seit 2001 Wilhelm Friedrich Bessel-Forschungspreise an jüngere Wissenschaftler/innen, die ihre Promotion vor nicht mehr als 18 Jahren abgeschlossen haben und die in ihren wissenschaftlichen Spezialgebieten bereits als „kommende Stars“ wahrgenommen werden. Die Nominierung der Kandidat/inn/en für die Forschungspreise erfolgt durch Wissenschaftler/innen in Deutschland. Mit der Preisverleihung werden die Preisträger/innen zusätzlich zu einem Aufenthalt nach Deutschland von bis zu einem Jahr einladen, um in Kooperation mit Fachkolleg/inn/en in Deutschland ein selbst gewähltes Forschungsvorhaben durchzuführen. Zweck der Evaluation war es zu überprüfen, inwieweit es der Humboldt-Stiftung gelungen ist, mit der Durchführung die angestrebten Ziele der Forschungspreis-Programme zu erreichen: • Erstens soll mit den Programmen die deutsche Forschungslandschaft gestärkt werden, indem Kooperationen zwischen exzellenten ausländischen und deutschen Wissenschaftler/innen gefördert werden. • Zweitens soll durch den Aufbau und die Vertiefung der persönlichen Netzwerke der Preisträger/innen mit Wissenschaftler/innen in Deutschland (und im Humboldt-Netzwerk) eine nachhaltige persönliche Bindung der wissenschaftlichen Eliten im Ausland an Deutschland erreicht werden. • Schließlich sollen drittens die Preisprogramme dazu beitragen, ein modernes und differenziertes Deutschlandbild zu vermitteln und zu verbreiten.
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Davis, C. Davis-Besse uncertainty study. Office of Scientific and Technical Information (OSTI), August 1987. http://dx.doi.org/10.2172/6243997.

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Leitner, Karl-Heinz, Georg Zahradnik, Bernhard Dachs, and Robert Hawlik. Ex-post-Evaluierung der Pilotförderungaktion für Inkubatoren JumpStart Phase 1 und Phase 2. AIT - Austrian Institute of Technology, October 2021. http://dx.doi.org/10.22163/fteval.2021.586.

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Start-up Inkubatoren bzw. Akzeleratoren nehmen am Innovationsstandort Österreich eine wachsende Rolle ein. Junge, dynamisch wachsende Unternehmen fragen zunehmend Arbeitsumgebungen nach, in denen sie Infrastruktur und Dienstleistungen aus einer Hand erhalten, um sich besser auf die Entwicklung des Unternehmens bzw. des Produkts fokussieren zu können. Obwohl es in Österreich bereits eine Reihe von Inkubatoren/Akzeleratoren gibt, so fehlen sehr oft die Mittel, um auch im internationalen Vergleich professionelle Dienstleistungen inkubierten Firmen anbieten zu können. Um diese Hindernisse zu überwinden, wurde im Jahr 2015 das Pilot-Programm "JumpStart" gestartet. Bisher wurden 2 Ausschreibungsrunden 2015/2016 für das Modul 1 erfolgreich abgeschlossen und die besten 10 Konzepte von Inkubatoren/Akzeleratoren ausgewählt und gefördert. Im Rahmen des Moduls 2 werden jeweils bis zu fünf Unternehmen, die in den unter Modul 1 geförderten Inkubatoren/Akzeleratoren betreut werden, für eine Förderung ausgewählt. Vor diesem Hintergrund untersucht diese Studie das Programmdesign, die Programmumsetzung sowie die Programmwirkung (Outputs, Outcomes und Impacts) des JumpStart-Programms. Darauf aufbauend werden Vorschläge für die Weiterentwicklung des Programms formuliert. Dazu wurden 25 Interviews mit den LeiterInnen der geförderten Inkubatoren, mit inkubierten Startups und weiteren Stakeholdern durchgeführt. Ferner wurde im Frühjahr 2021 eine Online-Befragung an Startups, die an JumpStart-Inkubatoren ansässig waren oder sind bzw. deren Dienstleistungen in Anspruch genommen haben, durchgeführt. Die Ergebnisse dieser Befragung werden mit Daten von Startups aus dem ASM (Kontrollgruppe) vergleichend analysiert.
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Author, Not Given. Report of the independent Ad Hoc Group for the Davis-Besse incident. Office of Scientific and Technical Information (OSTI), June 1986. http://dx.doi.org/10.2172/5607389.

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Bäumler, Maximilian, Susanne Arndt, Matthias Fuchs, Matthias Lehmann, Regine Gerike, Martin Bärwolff, and Günther Prokop. Videodaten in der Verkehrsforschung – besser auffind- und nachnutzbar dank der neuen Ontologie ListDB Onto. TU Dresden, Fakultät Verkehrswissenschaften 'Friedrich List', 2023. http://dx.doi.org/10.26128/2023.40.

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Wesley, D. A., D. K. Nakaki, H. Hadidi-Tamjed, and T. R. Kipp. Pressure-dependent fragilities for piping components: Pilot study on Davis-Besse Nuclear Power Station. Office of Scientific and Technical Information (OSTI), October 1990. http://dx.doi.org/10.2172/6387566.

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Auer, Daniel, Denise Efionayi-Mäder, Joëlle Fehlmann, Mirjam Suri, Dina Bader, Giuliano Bonoli, Michael Morlok, and Johanna Probst. Monitoring und Evaluation des Pilotprogramms «Frühzeitige Sprachförderung». Université de Neuchâtel – Swiss Forum for Migration and Population Studies (SFM), June 2023. http://dx.doi.org/10.35662/unine-sfmstudies-84d.

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Im Rahmen der Integrationsmassnahmen des Bundes für Personen aus dem Asylbereich hat das Staatssekretariat für Migration (SEM) im Jahr 2018 zusammen mit 17 Kantonen ein Pilotprogramm zur frühzeitigen Sprachförderung von Asylsuchenden lanciert. Dieses hat vielerorts einen wichtigen Impuls für eine rasch einsetzende Sprachförderung gegeben. Praktisch alle befragten Fachpersonen und Geflüchteten schätzen das Angebot und sind der Ansicht, dass Geflüchtete dadurch besser auf die kommenden Integrationsschritte vorbereitet sind. Ferner liefern die Resultate Hinweise auf Verbesserungsmöglichkeiten.
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