Littérature scientifique sur le sujet « Radial problem »
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Articles de revues sur le sujet "Radial problem"
Herrero, M. A., et J. J. L. Velázquez. « Radial solutions of a semilinear elliptic problem ». Proceedings of the Royal Society of Edinburgh : Section A Mathematics 118, no 3-4 (1991) : 305–26. http://dx.doi.org/10.1017/s0308210500029115.
Texte intégralBRIHAYE, Y., et PIOTR KOSINSKI. « QUASI-EXACTLY SOLVABLE RADIAL DIRAC EQUATIONS ». Modern Physics Letters A 13, no 18 (14 juin 1998) : 1445–52. http://dx.doi.org/10.1142/s0217732398001522.
Texte intégralKhamis, H. J. « Buffon's Needle Problem on Radial Lines ». Mathematics Magazine 64, no 1 (1 février 1991) : 56. http://dx.doi.org/10.2307/2690457.
Texte intégralKhamis, H. J. « Buffon's Needle Problem on Radial Lines ». Mathematics Magazine 64, no 1 (février 1991) : 56–58. http://dx.doi.org/10.1080/0025570x.1991.11977575.
Texte intégralPavlova, O. S., et A. R. Frenkin. « Radial Schrödinger equation : The spectral problem ». Theoretical and Mathematical Physics 125, no 2 (novembre 2000) : 1506–15. http://dx.doi.org/10.1007/bf02551010.
Texte intégralGiuffrè, Sofia, et Attilio Marcianò. « On the Existence of Radial Solutions to a Nonconstant Gradient-Constrained Problem ». Symmetry 14, no 7 (11 juillet 2022) : 1423. http://dx.doi.org/10.3390/sym14071423.
Texte intégralAkella, Maruthi R., et Roger A. Broucke. « Anatomy of the Constant Radial Thrust Problem ». Journal of Guidance, Control, and Dynamics 25, no 3 (mai 2002) : 563–70. http://dx.doi.org/10.2514/2.4917.
Texte intégralKohonen, M., O. Teerenhovi, T. Terho, J. Laurikka et M. Tarkka. « Non-harvestable radial artery. A bilateral problem ? » Interactive CardioVascular and Thoracic Surgery 7, no 5 (1 octobre 2008) : 797–800. http://dx.doi.org/10.1510/icvts.2007.172569.
Texte intégralNesterov, A. V., V. G. Niz’ev et A. L. Sokolov. « Transformation problem for radiation with radial polarization ». Optics and Spectroscopy 90, no 6 (juin 2001) : 923–27. http://dx.doi.org/10.1134/1.1380793.
Texte intégralGerry, Christopher C., et J. Kiefer. « Radial coherent states for the Coulomb problem ». Physical Review A 37, no 3 (1 février 1988) : 665–71. http://dx.doi.org/10.1103/physreva.37.665.
Texte intégralThèses sur le sujet "Radial problem"
Ventura, Ivan. « Radial Solutions to an Elliptic Boundary Valued Problem ». Scholarship @ Claremont, 2007. https://scholarship.claremont.edu/hmc_theses/203.
Texte intégralMeng, Tan Chee. « Infinitely Many Radial Solutions to a Superlinear Dirichlet Problem ». Scholarship @ Claremont, 2007. https://scholarship.claremont.edu/hmc_theses/202.
Texte intégralSahin, Ferat. « A Radial Basis Function Approach to a Color Image Classification Problem in a Real Time Industrial Application ». Thesis, Virginia Tech, 1997. http://hdl.handle.net/10919/36847.
Texte intégralMaster of Science
Kurepa, Alexandra. « Radially Symmetric Solutions to a Superlinear Dirichlet Problem in a Ball ». Thesis, North Texas State University, 1987. https://digital.library.unt.edu/ark:/67531/metadc330725/.
Texte intégralPuerta, Gabriel Figueiredo. « Restauração de sistemas de distribuição radiais quando existe um número reduzido de chaves de manobra ». Ilha Solteira, 2018. http://hdl.handle.net/11449/158269.
Texte intégralResumo: Neste trabalho, apresenta-se um modelo matemático especializado para a otimização do problema da restauração de redes de distribuição de energia elétrica radiais quando existem poucas chaves manobráveis. A existência de um número reduzido de chaves seccionadoras na rede de distribuição é uma característica típica de sistemas reais. O problema da restauração de redes de distribuição consiste em obter um plano de restauração que restabeleça o máximo possível de cargas presentes na parcela do sistema que foi desenergizada após a ocorrência de uma falta permanente. O plano de restauração deve ser obtido o mais rápido possível. O modelo matemático proposto possui como objetivo maximizar o restabelecimento de energia àqueles setores de carga que estão desenergizados e minimizar o número total de chaveamentos necessários para que a restauração aconteça. O modelo matemático resultante é de programação cônica de segunda ordem inteira mista e é resolvido através de solucionadores comerciais que se baseiam em técnicas de otimização clássicas. Os testes considerando faltas permanentes foram simulados em sistemas de distribuição testes de 53 e 84 barras. Os sistemas foram adaptados e transportados para a problemática do trabalho e os resultados adquiridos qualificam a robustez e a eficácia do modelo matemático especializado proposto para a resolução do problema.
Abstract: This work proposes an specialized mathematical model for the optimization of the restoration problem in radial electric power distribution systems with few manageable switches. The existence of a reduced number of switches in the distribution systems it’s a typical characteristic of real systems. The restoration problem in radial electric power distribution systems is to obtain a restoration plan that reestablishes the maximum amount of present loads in the system portion that has been de-energized after the occurrence of a permanent fault. The elaboration of the restoration plan must be as soon as possible. The proposed mathematical model aims at maximizing the power re-establishment to the de-energized load sectors and at minimizing the total amount of operated switches that are required for the restoration happen. The resulting mathematical model is a mixed-integer second-order conic programming problem and it’s solved through commercial solves that use classical optimization techniques as base. The tests considering permanents faults were simulated in 84 and 53-bus distribution systems. The systems were adapted and transported to the work’s problematic and the acquired results show the robustness and the effectiveness of the proposed specialized mathematical model for the problem resolution.
Mestre
Al-Bayati, Salam Adel. « Boundary element analysis for convection-diffusion-reaction problems combining dual reciprocity and radial integration methods ». Thesis, Brunel University, 2018. http://bura.brunel.ac.uk/handle/2438/17071.
Texte intégralCardona, Natalia Patiño [UNESP]. « Reconfiguração de sistemas de distribuição de energia elétrica utilizando uma metodologia multipartida ». Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/136281.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Este trabalho apresenta uma proposta baseada na metodologia multipartida para a resolução do Problema de Reconfiguração de Sistemas de Distribuição de Energia Elétrica, de natureza combinatória e modelado como um problema de Programação Não Linear Inteiro Misto. O objetivo principal deste trabalho é encontrar a topologia radial ótima para minimizar as perdas ativas dos sistemas de distribuição, e para isso é preciso, primeiramente, a resolução de um problema de fluxo de potência para sistemas fracamente malhados onde é calculada a potência aparente do sistema, a qual vai ser utilizada pelo algoritmo de Prim como o peso para a geração das soluções iniciais radiais de boa qualidade. Para implementar a metodologia proposta deve-se desenvolver também um algoritmo de fluxo de potência radial, utilizado para calcular tanto as perdas ativas do sistema (função objetivo do problema), como para verificar a factibilidade das propostas de solução. Nesta primeira etapa é feita uma variação aleatória dos pesos dos ramos, e são resolvidos tantos problemas de fluxo de potência radial quanto soluções aleatórias obtidas, para encontrar soluções de boa qualidade próximas ao ótimo. Finalmente, é feita uma busca local através da troca de ramos como tentativa para encontrar a solução ótima. As soluções obtidas pela metodologia proposta são obtidas através da programação de algoritmos implementados em linguagem C++. Os resultados obtidos mostram a eficiência da aplicação da metodologia, estes resultados foram comparados com os existentes na literatura e os obtidos pela resolução de um modelo de otimização resolvido com o solver comercial CPLEX.
This work presents a proposal based on multi-start methodology for the solution of the distribution network reconfiguration problem, of combinatorial nature and modeled as a mixed-integer nonlinear programming problem. The main objective of this work is to find the optimal radial topology to minimize active power losses in distribution systems. This requires, at first, the resolution of a power flow problem for weakly meshed systems where the apparent power of the system is calculated, which will be used by the Prim algorithm as the weight for generating the radial initial good quality solution. To implement the proposed methodology is also developed a radial power flow algorithm, used to calculate both the active system losses (objective function of the problem) and to verify the feasibility of the proposed solutions. In this first stage is made a random variation of the weights of branches, and there are solved as many radial power flows as random solutions obtained, to find good quality solutions close to optimal. Finally, a local search is made by doing an exchange of branches as an attempt to find the optimal solution. The solutions obtained by the proposed method are acquired by programming algorithms implemented in C ++ language. The results show the effectiveness of the application of the methodology. These results were compared with those in the literature and those obtained by solving an optimization model solved by the commercial solver CPLEX.
Cardona, Natalia Patiño. « Reconfiguração de sistemas de distribuição de energia elétrica utilizando uma metodologia multipartida / ». Ilha Solteira, 2016. http://hdl.handle.net/11449/136281.
Texte intégralResumo: Este trabalho apresenta uma proposta baseada na metodologia multipartida para a resolução do Problema de Reconfiguração de Sistemas de Distribuição de Energia Elétrica, de natureza combinatória e modelado como um problema de Programação Não Linear Inteiro Misto. O objetivo principal deste trabalho é encontrar a topologia radial ótima para minimizar as perdas ativas dos sistemas de distribuição, e para isso é preciso, primeiramente, a resolução de um problema de fluxo de potência para sistemas fracamente malhados onde é calculada a potência aparente do sistema, a qual vai ser utilizada pelo algoritmo de Prim como o peso para a geração das soluções iniciais radiais de boa qualidade. Para implementar a metodologia proposta deve-se desenvolver também um algoritmo de fluxo de potência radial, utilizado para calcular tanto as perdas ativas do sistema (função objetivo do problema), como para verificar a factibilidade das propostas de solução. Nesta primeira etapa é feita uma variação aleatória dos pesos dos ramos, e são resolvidos tantos problemas de fluxo de potência radial quanto soluções aleatórias obtidas, para encontrar soluções de boa qualidade próximas ao ótimo. Finalmente, é feita uma busca local através da troca de ramos como tentativa para encontrar a solução ótima. As soluções obtidas pela metodologia proposta são obtidas através da programação de algoritmos implementados em linguagem C++. Os resultados obtidos mostram a eficiência da aplicação da metodologia, estes resul... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: This work presents a proposal based on multi-start methodology for the solution of the distribution network reconfiguration problem, of combinatorial nature and modeled as a mixed-integer nonlinear programming problem. The main objective of this work is to find the optimal radial topology to minimize active power losses in distribution systems. This requires, at first, the resolution of a power flow problem for weakly meshed systems where the apparent power of the system is calculated, which will be used by the Prim algorithm as the weight for generating the radial initial good quality solution. To implement the proposed methodology is also developed a radial power flow algorithm, used to calculate both the active system losses (objective function of the problem) and to verify the feasibility of the proposed solutions. In this first stage is made a random variation of the weights of branches, and there are solved as many radial power flows as random solutions obtained, to find good quality solutions close to optimal. Finally, a local search is made by doing an exchange of branches as an attempt to find the optimal solution. The solutions obtained by the proposed method are acquired by programming algorithms implemented in C ++ language. The results show the effectiveness of the application of the methodology. These results were compared with those in the literature and those obtained by solving an optimization model solved by the commercial solver CPLEX.
Mestre
Sargent, Ethan. « Radial Solutions to Semipositone Dirichlet Problems ». Scholarship @ Claremont, 2019. https://scholarship.claremont.edu/hmc_theses/229.
Texte intégralSfecci, Andrea. « Some existence results for boundary value problems : a promenade along resonance ». Doctoral thesis, SISSA, 2012. http://hdl.handle.net/20.500.11767/4703.
Texte intégralLivres sur le sujet "Radial problem"
Bartol, C. A. Radical problems. Boston : Roberts, 1985.
Trouver le texte intégralRadical Newcastle. Sydney, N.S.W : NewSouth Publishing, 2015.
Trouver le texte intégralRadical politics in Meghalaya : Problems and prospects. Delhi : Kalpaz Publications, 2009.
Trouver le texte intégralGupta, Susmita Sen. Radical politics in Meghalaya : Problems and prospects. Delhi : Kalpaz Publications, 2009.
Trouver le texte intégralGupta, Susmita Sen. Radical politics in Meghalaya : Problems and prospects. Delhi : Kalpaz Publications, 2009.
Trouver le texte intégralPupils with problems : Rational fears-- radical solutions ? Stoke-on-Trent, Staffordshire, England : Trentham, 1999.
Trouver le texte intégralPreaching as weeping, confession, and resistance : Radical responses to radical evil. Louisville, Ky : Westminster/John Knox Press, 1992.
Trouver le texte intégralBressoud, David M. A radical approach to real analysis. 2e éd. [Washington, D.C.] : Mathematical Association of America, 2007.
Trouver le texte intégralBressoud, David M. A radical approach to real analysis. Washington, D.C : Mathematical Association of America, 1994.
Trouver le texte intégralA radical approach to real analysis. Washington, D.C : Mathematical Association of America, 1994.
Trouver le texte intégralChapitres de livres sur le sujet "Radial problem"
Wagner, Benjamin Richards, et C. Liam Dwyer. « Radial Head Fractures ». Dans Tips and Tricks for Problem Fractures, Volume I, 103–15. Cham : Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-38274-2_7.
Texte intégralOrtiz-Gómez, Mamen, Carlos Hernández-Espinosa et Mercedes Fernández-Redondo. « An Empirical Comparison of Training Algorithms for Radial Basis Functions ». Dans Artificial Neural Nets Problem Solving Methods, 129–36. Berlin, Heidelberg : Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/3-540-44869-1_17.
Texte intégralKindelan, Manuel, et Francisco Bernal. « Radial Basis Function (RBF) Solution of the Motz Problem ». Dans Progress in Industrial Mathematics at ECMI 2008, 907–12. Berlin, Heidelberg : Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-12110-4_145.
Texte intégralCosta, D. G., et D. G. De Figueiredo. « Radial Solutions for a Dirichlet Problem in a Ball ». Dans Djairo G. de Figueiredo - Selected Papers, 189–98. Cham : Springer International Publishing, 1985. http://dx.doi.org/10.1007/978-3-319-02856-9_14.
Texte intégralBerdysheva, Elena E., et Hubert Berens. « On a Discrete Turán Problem for ℓ-1 Radial Functions ». Dans New Perspectives on Approximation and Sampling Theory, 447–68. Cham : Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-08801-3_19.
Texte intégralGarcia-Huidobro, M., R. Manásevich et J. Mawhin. « Radial solutions of a Neumann problem coming from a burglary model ». Dans Contributions to Nonlinear Elliptic Equations and Systems, 257–68. Cham : Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-19902-3_17.
Texte intégralBenguria, Rafael, et Soledad Benguria. « A non-existence result for a generalized radial Brezis–Nirenberg problem ». Dans Partial Differential Equations, Spectral Theory, and Mathematical Physics, 1–15. Zuerich, Switzerland : European Mathematical Society Publishing House, 2021. http://dx.doi.org/10.4171/ecr/18-1/1.
Texte intégralCarse, Brian, et Terence C. Fogarty. « Tackling the “curse of dimensionality” of radial basis functional neural networks using a genetic algorithm ». Dans Parallel Problem Solving from Nature — PPSN IV, 707–19. Berlin, Heidelberg : Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/3-540-61723-x_1034.
Texte intégralPolyakov, V., et R. Chatys. « Mixed Problem for Free Radial Vibrations of a Closed Spherical Sandwich Shell ». Dans Experimental Analysis of Nano and Engineering Materials and Structures, 767–68. Dordrecht : Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-6239-1_381.
Texte intégralRobinson, E. L. « Discrepant Measurements of the Radial Velocities of SS Cygni : Solution to the Problem ». Dans Cataclysmic Variables. Recent Multi-Frequency Observations and Theoretical Developments, 113–18. Dordrecht : Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3801-4_15.
Texte intégralActes de conférences sur le sujet "Radial problem"
Xie, H., T. Nogami et J. G. Wang. « RADIAL BOUNDARY NODE METHOD FOR ELASTIC PROBLEM ». Dans Proceedings of the 1st Asian Workshop on Meshfree Methods. WORLD SCIENTIFIC, 2002. http://dx.doi.org/10.1142/9789812778611_0025.
Texte intégralCHANG, DER-CHEN, et WAYNE EBY. « MOMENT CONDITIONS FOR POMPEIU PROBLEM EXTENDED TO GENERAL RADIAL SURFACES ». Dans Proceedings of Modelling and Control of Mechanical Systems. WORLD SCIENTIFIC, 2002. http://dx.doi.org/10.1142/9789812776594_0004.
Texte intégralXiao Li, Guanjun Chen, Mingzhou Zhan et Ruimin Xu. « A new planar compatible power combiner based on radial waveguide ». Dans 2014 IEEE International Conference on Communication Problem-Solving (ICCP). IEEE, 2014. http://dx.doi.org/10.1109/iccps.2014.7062238.
Texte intégralMahavishnu, K. B. P., Prasanna Kumar et Hari Kishan Surjith. « New approaches to solve radial distribution system problem with FACTS controller ». Dans 2016 International Conference on Electrical, Electronics, and Optimization Techniques (ICEEOT). IEEE, 2016. http://dx.doi.org/10.1109/iceeot.2016.7755609.
Texte intégralPeng, Lei, Li Liu et Teng Long. « Study of Sequential Radial Basis Function for Computational Intensive Design Problem ». Dans 12th AIAA Aviation Technology, Integration, and Operations (ATIO) Conference and 14th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference. Reston, Virigina : American Institute of Aeronautics and Astronautics, 2012. http://dx.doi.org/10.2514/6.2012-5689.
Texte intégralLiu, Xin, G. R. Liu, Kang Tai et K. Y. Lam. « RADIAL BASIS POINT INTERPOLATION COLLOCATION METHOD FOR 2-D SOLID PROBLEM ». Dans Proceedings of the 1st Asian Workshop on Meshfree Methods. WORLD SCIENTIFIC, 2002. http://dx.doi.org/10.1142/9789812778611_0008.
Texte intégralMartin, Busek. « The problem of measuring the radial cam grinder BRV 300 - CNC ». Dans 2014 15th International Carpathian Control Conference (ICCC). IEEE, 2014. http://dx.doi.org/10.1109/carpathiancc.2014.6843571.
Texte intégralQin, Xinqiang, Xin Deng, Xiaohong Tong et Yi Wang. « Application of Radial Basis Collocation Method for Infiltration and Drainage Problem ». Dans 2013 International Conference on Software Engineering and Computer Science. Paris, France : Atlantis Press, 2013. http://dx.doi.org/10.2991/icsecs-13.2013.56.
Texte intégralYin, Zhenfeng, Zhenhai Shao, Lianfu Liu et Xueyong Zhu. « Design of a novel broadband power divider based on oversized-coaxial and radial waveguide ». Dans 2011 International Conference on Computational Problem-Solving (ICCP). IEEE, 2011. http://dx.doi.org/10.1109/iccps.2011.6092230.
Texte intégralXu, Zhen, Qianyun Pang, Kaixue Ma, Jun Xu et Shouxian Mou. « A compact band-pass filter using transformed radial stubs with ultra-wide stopband ». Dans 2014 IEEE International Conference on Communication Problem-Solving (ICCP). IEEE, 2014. http://dx.doi.org/10.1109/iccps.2014.7062320.
Texte intégralRapports d'organisations sur le sujet "Radial problem"
Kim, S. H. A radial coil probe for quadrupole magnet measurements. Office of Scientific and Technical Information (OSTI), juillet 1995. http://dx.doi.org/10.2172/88521.
Texte intégralKim, S. H. Radial and tangential winding coil probes for sextupole magnet measurements. Office of Scientific and Technical Information (OSTI), août 1995. http://dx.doi.org/10.2172/89976.
Texte intégralLawton, John A., Robert J. Jesionowski et Paul Zarchan. Comparison of Four Filtering Options for a Radar Tracking Problem,. Fort Belvoir, VA : Defense Technical Information Center, janvier 1997. http://dx.doi.org/10.21236/ada329021.
Texte intégralShen, Oscar, Wen-Chih Liu et Chih-Ting Chen. Effectiveness and safety of volar locked plate, K-wiring and external fixator, and the conservative treatment for distal radius fracture in the elderly : Systematic review and Network meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, février 2022. http://dx.doi.org/10.37766/inplasy2022.12.0009.
Texte intégralAndrawes, Bassem, Ernesto Perez Claros et Zige Zhang. Bond Characteristics and Experimental Behavior of Textured Epoxy-coated Rebars Used in Concrete Bridge Decks. Illinois Center for Transportation, janvier 2022. http://dx.doi.org/10.36501/0197-9191/22-001.
Texte intégralCarrasco, Marine, et N'golo Koné. Test for Trading Costs Effect in a Portfolio Selection Problem with Recursive Utility. CIRANO, janvier 2023. http://dx.doi.org/10.54932/bjce8546.
Texte intégralBorden, Brett. What is the Radar Tracking 'Glint' Problem and Can It Be Solved. Fort Belvoir, VA : Defense Technical Information Center, mai 1993. http://dx.doi.org/10.21236/ada266509.
Texte intégralKersten, P. R., et A. C. Kak. Tutorial on Using LISP Object-Oriented Programming for Blackboards : Solving the Radar Tracking Problem. Fort Belvoir, VA : Defense Technical Information Center, août 1989. http://dx.doi.org/10.21236/ada224272.
Texte intégralBlair, W. D., et G. A. Watson. Benchmark Problem for Radar Resource Allocation and Tracking Maneuvering Targets in the Presence of ECM. Fort Belvoir, VA : Defense Technical Information Center, septembre 1996. http://dx.doi.org/10.21236/ada286909.
Texte intégralGirdap, Hafza. Liberal Roots of Far Right Activism – The Anti-Islamic Movement in the 21st Century. European Center for Populism Studies (ECPS), janvier 2022. http://dx.doi.org/10.55271/br0007.
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