Готові списки джерел за темами / Radial problem

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Опубліковано: 14 березня 2023

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Статті в журналах з теми "Radial problem"

1

Herrero, M. A., and 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.

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SynopsisWe analyse the set of nonnegative, global, and radial solutions (radial solutions, for short) of the equationwhere 0 < p < 1, and is a radial and almost everywhere nonnegative function. We show that radial solutions of (E) exist if f(r) = o(r2p/1−1−p) or if f(r) ≈ cr2p/1−p as r → ∞, whereWhen f(r) = c*r2p/1−p + h(r) with h(r) = o(r2p/1−p) as r → ∞, radial solutions continue to exist if h(r) is sufficiently small at infinity. Existence, however, breaks down if h(r) > 0,Whenever they exist, radial solutions are characterised in terms of their asymptotic behaviour as r → ∞.
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2

BRIHAYE, Y., and PIOTR KOSINSKI. "QUASI-EXACTLY SOLVABLE RADIAL DIRAC EQUATIONS." Modern Physics Letters A 13, no. 18 (June 14, 1998): 1445–52. http://dx.doi.org/10.1142/s0217732398001522.

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In the background of a central Coulomb potential, the Schrödinger and Dirac equations lead to exactly solvable spectral problems. When the Schrödinger–Coulomb equation is supplemented by a Harmonic potential, the corresponding spectral problem still possesses a finite number of algebraic solutions: it is quasi-exactly solvable. In this letter we analyze the spectral problem corresponding to the Dirac–Coulomb problem supplemented by a linear radial potential and we show that it also leads to quasi-exactly solvable equations.
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3

Khamis, H. J. "Buffon's Needle Problem on Radial Lines." Mathematics Magazine 64, no. 1 (February 1, 1991): 56. http://dx.doi.org/10.2307/2690457.

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Khamis, H. J. "Buffon's Needle Problem on Radial Lines." Mathematics Magazine 64, no. 1 (February 1991): 56–58. http://dx.doi.org/10.1080/0025570x.1991.11977575.

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5

Pavlova, O. S., and A. R. Frenkin. "Radial Schrödinger equation: The spectral problem." Theoretical and Mathematical Physics 125, no. 2 (November 2000): 1506–15. http://dx.doi.org/10.1007/bf02551010.

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6

Giuffrè, Sofia, and Attilio Marcianò. "On the Existence of Radial Solutions to a Nonconstant Gradient-Constrained Problem." Symmetry 14, no. 7 (July 11, 2022): 1423. http://dx.doi.org/10.3390/sym14071423.

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In this paper, we study a variational problem with nonconstant gradient constraints. Several aspects related to problems with gradient constraints have been studied in the literature and have seen new developments in recent years. In the case of constant gradient constraint, the problem is the well-known elastic–plastic torsion problem. A relevant issue in this type of problem is the existence of Lagrange multipliers. Here, we consider the equivalent Lagrange multiplier formulation of a nonconstant gradient-constrained problem, and we investigate the class of solutions having a radial symmetry. We rewrite the problem in the radial symmetry case, and we analyse the different situations that may arise. In particular, in the planar case, we derive a condition characterizing the free boundary and obtain the explicit radial solution to the problem and the Lp Lagrange multiplier. Some examples support the results.
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7

Akella, Maruthi R., and Roger A. Broucke. "Anatomy of the Constant Radial Thrust Problem." Journal of Guidance, Control, and Dynamics 25, no. 3 (May 2002): 563–70. http://dx.doi.org/10.2514/2.4917.

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8

Kohonen, M., O. Teerenhovi, T. Terho, J. Laurikka, and M. Tarkka. "Non-harvestable radial artery. A bilateral problem?" Interactive CardioVascular and Thoracic Surgery 7, no. 5 (October 1, 2008): 797–800. http://dx.doi.org/10.1510/icvts.2007.172569.

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9

Nesterov, A. V., V. G. Niz’ev, and A. L. Sokolov. "Transformation problem for radiation with radial polarization." Optics and Spectroscopy 90, no. 6 (June 2001): 923–27. http://dx.doi.org/10.1134/1.1380793.

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10

Gerry, Christopher C., and J. Kiefer. "Radial coherent states for the Coulomb problem." Physical Review A 37, no. 3 (February 1, 1988): 665–71. http://dx.doi.org/10.1103/physreva.37.665.

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Дисертації з теми "Radial problem"

1

Ventura, Ivan. "Radial Solutions to an Elliptic Boundary Valued Problem." Scholarship @ Claremont, 2007. https://scholarship.claremont.edu/hmc_theses/203.

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In this paper we prove that div(|x|β∇u)+|x|αf(u)=0, inB u = 0 on ∂B has infinitely many solutions when f is superlinear and grows subcritically for u ≥ 0 and up to critically for u less than 0 with 10, 13 N+β−2 N+β−2 We make extensive use of Pohozaev identities and phase plane and energy arguments.
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2

Meng, Tan Chee. "Infinitely Many Radial Solutions to a Superlinear Dirichlet Problem." Scholarship @ Claremont, 2007. https://scholarship.claremont.edu/hmc_theses/202.

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My thesis work started in the summer of 2005 as a three way joint project by Professor Castro and Mr. John Kwon and myself. A paper from this joint project was written and the content now forms my thesis.
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3

Sahin, 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.

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In this thesis, we introduce a radial basis function network approach to solve a color image classification problem in a real time industrial application. Radial basis function networks are employed to classify the images of finished wooden parts in terms of their color and species. Other classification methods are also examined in this work. The minimum distance classifiers are presented since they have been employed by the previous research. We give brief definitions about color space, color texture, color quantization, color classification methods. We also give an intensive review of radial basis functions, regularization theory, regularized radial basis function networks, and generalized radial basis function networks. The centers of the radial basis functions are calculated by the k-means clustering algorithm. We examine the k-means algorithm in terms of starting criteria, the movement rule, and the updating rule. The dilations of the radial basis functions are calculated using a statistical method. Learning classifier systems are also employed to solve the same classification problem. Learning classifier systems learn the training samples completely whereas they are not successful to classify the test samples. Finally, we present some simulation results for both radial basis function network method and learning classifier systems method. A comparison is given between the results of each method. The results show that the best classification method examined in this work is the radial basis function network method.
Master of Science
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4

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/.

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5

Puerta, 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.

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Orientador: Rubén Augusto Romero Lázaro
Resumo: 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
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6

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.

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In this research project, the Boundary Element Method (BEM) is developed and formulated for the solution of two-dimensional convection-diffusion-reaction problems. A combined approach with the dual reciprocity boundary element method (DRBEM) has been applied to solve steady-state problems with variable velocity and transient problems with constant and variable velocity fields. Further, the radial integration boundary element method (RIBEM) is utilised to handle non-homogeneous problems with variable source term. For all cases, a boundary-only formulation is produced. Initially, the steady-state case with constant velocity is considered, by employing constant boundary elements and a fundamental solution of the adjoint equation. This fundamental solution leads to a singular integral equation. The conservation laws, usually applied to avoid this integration, do not hold when a chemical reaction is taking place. Then, the integrals are successfully computed using Telles' technique. The application of the BEM for this particular equation is discussed in detail in this work. Next, the steady-state problem for variable velocity fields is presented and investigated. The velocity field is divided into an average value plus a perturbation. The perturbation is taken to the right-hand-side of the equation generating a non-homogeneous term. This nonhomogeneous equation is treated by utilising the DRM approach resulting in a boundary-only equation. Then, an integral equation formulation for the transient problem with constant velocity is derived, based on the DRM approach utilising the fundamental solution of the steady-state case. Therefore, the convective terms will be encompassed by the fundamental solution and lie within the boundary integral after application of Greens's second identity, leaving on the right-hand-side of the equation a domain integral involving the time-derivative only. The proposed DRM method needs the time-derivative to be expanded as a series of functions that will allow the domain integral to be moved to the boundary. The expansion required by the DRM uses functions which take into account the geometry and physics of the problem, if velocity-dependent terms are used. After that, a novel DRBEM model for transient convection-diffusion-reaction problems with variable velocity field is investigated and validated. The fundamental solution for the corresponding steady-state problem is adopted in this formulation. The variable velocity is decomposed into an average which is included into the fundamental solution of the corresponding equation with constant coefficients, and a perturbation which is treated using the DRM approximation. The mathematical formulation permits the numerical solution to be represented in terms of boundary-only integrals. Finally, a new formulation for non-homogeneous convection-diffusion-reaction problems with variable source term is achieved using RIBEM. The RIM is adopted to convert the domain integrals into boundary-only integrals. The proposed technique shows very good solution behaviour and accuracy in all cases studied. The convergence of the methods has been examined by implementing different error norm indicators and increasing the number of boundary elements in all cases. Numerical test cases are presented throughout this research work. Their results are sufficiently encouraging to recommend the use of the techniques developed for solution of general convection-diffusion-reaction problems. All the simulated solutions for several examples showed very good agreement with available analytical solutions, with no numerical problems of oscillation and damping of sharp fronts.
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7

Cardona, 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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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.
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8

Cardona, Natalia Patiño. "Reconfiguração de sistemas de distribuição de energia elétrica utilizando uma metodologia multipartida /." Ilha Solteira, 2016. http://hdl.handle.net/11449/136281.

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Анотація:
Orientador: Rubén Augusto Romero Lázaro
Resumo: 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
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9

Sargent, Ethan. "Radial Solutions to Semipositone Dirichlet Problems." Scholarship @ Claremont, 2019. https://scholarship.claremont.edu/hmc_theses/229.

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We study a Dirichlet problem, investigating existence and uniqueness for semipositone and superlinear nonlinearities. We make use of Pohozaev identities, energy arguments, and bifurcation from a simple eigenvalue.
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10

Sfecci, Andrea. "Some existence results for boundary value problems : a promenade along resonance." Doctoral thesis, SISSA, 2012. http://hdl.handle.net/20.500.11767/4703.

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I present many existence result to many boundary value problems, in particular periodic problems and Neumann elliptic problems. The results use the method of the topological degree theory. In the thesis different problems are treated: planar systems, systems with a singularity, impact oscillators, coupled oscillators and radial elliptic problems.
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Книги з теми "Radial problem"

1

Bartol, C. A. Radical problems. Boston: Roberts, 1985.

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2

Radical Newcastle. Sydney, N.S.W: NewSouth Publishing, 2015.

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3

Radical politics in Meghalaya: Problems and prospects. Delhi: Kalpaz Publications, 2009.

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4

Gupta, Susmita Sen. Radical politics in Meghalaya: Problems and prospects. Delhi: Kalpaz Publications, 2009.

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5

Gupta, Susmita Sen. Radical politics in Meghalaya: Problems and prospects. Delhi: Kalpaz Publications, 2009.

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6

Pupils with problems: Rational fears-- radical solutions? Stoke-on-Trent, Staffordshire, England: Trentham, 1999.

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Preaching as weeping, confession, and resistance: Radical responses to radical evil. Louisville, Ky: Westminster/John Knox Press, 1992.

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8

Bressoud, David M. A radical approach to real analysis. 2nd ed. [Washington, D.C.]: Mathematical Association of America, 2007.

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9

Bressoud, David M. A radical approach to real analysis. Washington, D.C: Mathematical Association of America, 1994.

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A radical approach to real analysis. Washington, D.C: Mathematical Association of America, 1994.

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Частини книг з теми "Radial problem"

1

Wagner, Benjamin Richards, and C. Liam Dwyer. "Radial Head Fractures." In 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.

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2

Ortiz-Gómez, Mamen, Carlos Hernández-Espinosa, and Mercedes Fernández-Redondo. "An Empirical Comparison of Training Algorithms for Radial Basis Functions." In 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.

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Kindelan, Manuel, and Francisco Bernal. "Radial Basis Function (RBF) Solution of the Motz Problem." In 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.

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4

Costa, D. G., and D. G. De Figueiredo. "Radial Solutions for a Dirichlet Problem in a Ball." In 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.

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5

Berdysheva, Elena E., and Hubert Berens. "On a Discrete Turán Problem for ℓ-1 Radial Functions." In 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.

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6

Garcia-Huidobro, M., R. Manásevich, and J. Mawhin. "Radial solutions of a Neumann problem coming from a burglary model." In 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.

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Benguria, Rafael, and Soledad Benguria. "A non-existence result for a generalized radial Brezis–Nirenberg problem." In 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.

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Carse, Brian, and Terence C. Fogarty. "Tackling the “curse of dimensionality” of radial basis functional neural networks using a genetic algorithm." In 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.

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Polyakov, V., and R. Chatys. "Mixed Problem for Free Radial Vibrations of a Closed Spherical Sandwich Shell." In 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.

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Robinson, E. L. "Discrepant Measurements of the Radial Velocities of SS Cygni: Solution to the Problem." In 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.

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Тези доповідей конференцій з теми "Radial problem"

1

Xie, H., T. Nogami, and J. G. Wang. "RADIAL BOUNDARY NODE METHOD FOR ELASTIC PROBLEM." In Proceedings of the 1st Asian Workshop on Meshfree Methods. WORLD SCIENTIFIC, 2002. http://dx.doi.org/10.1142/9789812778611_0025.

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CHANG, DER-CHEN, and WAYNE EBY. "MOMENT CONDITIONS FOR POMPEIU PROBLEM EXTENDED TO GENERAL RADIAL SURFACES." In Proceedings of Modelling and Control of Mechanical Systems. WORLD SCIENTIFIC, 2002. http://dx.doi.org/10.1142/9789812776594_0004.

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3

Xiao Li, Guanjun Chen, Mingzhou Zhan, and Ruimin Xu. "A new planar compatible power combiner based on radial waveguide." In 2014 IEEE International Conference on Communication Problem-Solving (ICCP). IEEE, 2014. http://dx.doi.org/10.1109/iccps.2014.7062238.

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4

Mahavishnu, K. B. P., Prasanna Kumar, and Hari Kishan Surjith. "New approaches to solve radial distribution system problem with FACTS controller." In 2016 International Conference on Electrical, Electronics, and Optimization Techniques (ICEEOT). IEEE, 2016. http://dx.doi.org/10.1109/iceeot.2016.7755609.

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Peng, Lei, Li Liu, and Teng Long. "Study of Sequential Radial Basis Function for Computational Intensive Design Problem." In 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.

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Liu, Xin, G. R. Liu, Kang Tai, and K. Y. Lam. "RADIAL BASIS POINT INTERPOLATION COLLOCATION METHOD FOR 2-D SOLID PROBLEM." In Proceedings of the 1st Asian Workshop on Meshfree Methods. WORLD SCIENTIFIC, 2002. http://dx.doi.org/10.1142/9789812778611_0008.

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Martin, Busek. "The problem of measuring the radial cam grinder BRV 300 - CNC." In 2014 15th International Carpathian Control Conference (ICCC). IEEE, 2014. http://dx.doi.org/10.1109/carpathiancc.2014.6843571.

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Qin, Xinqiang, Xin Deng, Xiaohong Tong, and Yi Wang. "Application of Radial Basis Collocation Method for Infiltration and Drainage Problem." In 2013 International Conference on Software Engineering and Computer Science. Paris, France: Atlantis Press, 2013. http://dx.doi.org/10.2991/icsecs-13.2013.56.

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9

Yin, Zhenfeng, Zhenhai Shao, Lianfu Liu, and Xueyong Zhu. "Design of a novel broadband power divider based on oversized-coaxial and radial waveguide." In 2011 International Conference on Computational Problem-Solving (ICCP). IEEE, 2011. http://dx.doi.org/10.1109/iccps.2011.6092230.

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Xu, Zhen, Qianyun Pang, Kaixue Ma, Jun Xu, and Shouxian Mou. "A compact band-pass filter using transformed radial stubs with ultra-wide stopband." In 2014 IEEE International Conference on Communication Problem-Solving (ICCP). IEEE, 2014. http://dx.doi.org/10.1109/iccps.2014.7062320.

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Звіти організацій з теми "Radial problem"

1

Kim, S. H. A radial coil probe for quadrupole magnet measurements. Office of Scientific and Technical Information (OSTI), July 1995. http://dx.doi.org/10.2172/88521.

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Kim, S. H. Radial and tangential winding coil probes for sextupole magnet measurements. Office of Scientific and Technical Information (OSTI), August 1995. http://dx.doi.org/10.2172/89976.

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3

Lawton, John A., Robert J. Jesionowski, and Paul Zarchan. Comparison of Four Filtering Options for a Radar Tracking Problem,. Fort Belvoir, VA: Defense Technical Information Center, January 1997. http://dx.doi.org/10.21236/ada329021.

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4

Shen, Oscar, Wen-Chih Liu, and 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, February 2022. http://dx.doi.org/10.37766/inplasy2022.12.0009.

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Анотація:
Review question / Objective: Patient/Problem: The elder(age>60), with distal radius fracture; Intervention: conservative treatment; Comparison of intervention: volar locked plate, K-wire, external fixator; Clinical Outcome: Grip strength, Disabilities of the Arm, Shoulder, and Hand, Patient-rated wrist evaluation score, range of motion. Condition being studied: The elder(age>60) with distal radius fracture, received conservative treatment or surgical treatment.
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5

Andrawes, Bassem, Ernesto Perez Claros, and Zige Zhang. Bond Characteristics and Experimental Behavior of Textured Epoxy-coated Rebars Used in Concrete Bridge Decks. Illinois Center for Transportation, January 2022. http://dx.doi.org/10.36501/0197-9191/22-001.

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Анотація:
The deterioration of bridge decks is a problem typically associated with the corrosion of the reinforcing steel. This issue was partially controlled during the 1970s with the incorporation of the epoxy-coating protection system. However, research later demonstrated that the smooth surface resulting from the epoxy-coating application reduces most of the friction between the rebar and the surrounding concrete. Consequently, forces acting on the rib faces are reconfigured in such a way that the radial components increase, triggering the early development of cracks. To mitigate both the reduction of bonding and the formation of cracks, the Illinois Department of Transportation proposed a new type of coated bars: textured epoxy-coated (TEC) bars. Over the last few years, different projects have been executed to understand and improve the characteristics of TEC rebars. This report is a continuation of research performed at the University of Illinois Urbana-Champaign to evaluate the bond behavior of TEC bars. The experimental program starts by characterizing, qualitatively and quantitatively, the roughness of the TEC rebars. Next, their bond-slip interaction embedded in concrete is evaluated through pull-out tests. Finite element models of these tests are developed to validate the behavior observed as the textured reinforcement loses anchorage with concrete. Based on these results, the experimental program then aims to study the impact of the drying shrinkage, temperature change, and flexural demands on two large-scale bridge deck specimens reinforced, individually, with TEC and standard epoxy-coated bars. The results collected from both specimens using digital image correlation and strain gauges are compared to explore the differences exhibited by the traditional and the new type of reinforcement coatings in terms of stress distribution in bridge decks. Finally, given the specialized equipment and time-consuming procedure needed to calculate the roughness parameters of TEC bars, an empirical, weight-based approach is developed as a rapid method for assessing the rebars’ roughness on-site.
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Carrasco, Marine, and N'golo Koné. Test for Trading Costs Effect in a Portfolio Selection Problem with Recursive Utility. CIRANO, January 2023. http://dx.doi.org/10.54932/bjce8546.

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Анотація:
This paper addresses a portfolio selection problem with trading costs on stock market. More precisely, we develop a simple GMM-based test procedure to test the significance of rading costs effect in the economy with a áexible form of transaction costs. We also propose a two-step procedure to test overidentifying restrictions in our GMM estimation. In an empirical analysis, we apply our test procedures to the class of anomalies used in Novy-Marx and Velikov (2016). We show that transaction costs have a significant effect on investors behavior for many anomalies. In that case, investors significantly improve the out-of-sample performance of their portfolios by accounting for trading costs.
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Borden, Brett. What is the Radar Tracking 'Glint' Problem and Can It Be Solved. Fort Belvoir, VA: Defense Technical Information Center, May 1993. http://dx.doi.org/10.21236/ada266509.

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Kersten, P. R., and A. C. Kak. Tutorial on Using LISP Object-Oriented Programming for Blackboards: Solving the Radar Tracking Problem. Fort Belvoir, VA: Defense Technical Information Center, August 1989. http://dx.doi.org/10.21236/ada224272.

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Blair, W. D., and 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, September 1996. http://dx.doi.org/10.21236/ada286909.

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10

Girdap, Hafza. Liberal Roots of Far Right Activism – The Anti-Islamic Movement in the 21st Century. European Center for Populism Studies (ECPS), January 2022. http://dx.doi.org/10.55271/br0007.

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Анотація:
Lars Erik Berntzen aims to probe the growth of far-right and anti-Islamic twist in Western Europe and North America since 2001 through his book “Liberal roots of Far Right Activism – The Anti-Islamic Movement in the 21st Century” by focusing on a specific context in terms of spatial and temporal meanings. According to his book, through “framing Islam as a homogenous, totalitarian ideology which threatens Western civilization” far-right seems to abandon the old, traditional, radical, authoritarian attitude towards a more liberal, modern, rights-based strategy.
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