Acceder

Bibliografías temáticas / Theory of distributions (Functional analysis) / Artículos de revistas

Siga este enlace para ver otros tipos de publicaciones sobre el tema: Theory of distributions (Functional analysis).

Artículos de revistas sobre el tema "Theory of distributions (Functional analysis)"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 30 de julio de 2024

Crea una cita precisa en los estilos APA, MLA, Chicago, Harvard y otros

Elija tipo de fuente:

Consulte los 50 mejores artículos de revistas para su investigación sobre el tema "Theory of distributions (Functional analysis)".

Junto a cada fuente en la lista de referencias hay un botón "Agregar a la bibliografía". Pulsa este botón, y generaremos automáticamente la referencia bibliográfica para la obra elegida en el estilo de cita que necesites: APA, MLA, Harvard, Vancouver, Chicago, etc.

También puede descargar el texto completo de la publicación académica en formato pdf y leer en línea su resumen siempre que esté disponible en los metadatos.

Explore artículos de revistas sobre una amplia variedad de disciplinas y organice su bibliografía correctamente.

1

Jakubowski, Jacek, and Maciej Wiśniewolski. "Another Look at the Hartman-Watson Distributions." Potential Analysis 53, no. 4 (November 5, 2019): 1269–97. http://dx.doi.org/10.1007/s11118-019-09806-7.

Texto completo

Resumen

Abstract The article deals with the Hartman-Watson distributions and presents a new approach to them by investigating a special function u. The function u is strictly related to the distribution of the exponential functional of Brownian motion appearing in the mathematical finance framework. The study of the latter leads to new explicit representations for the function u. One of them is through a new parabolic PDE. Integral relations of convolution type between Hartman-Watson distributions and modified Bessel functions are presented. It turns out that u can be represented as an integral convol

Los estilos APA, Harvard, Vancouver, ISO, etc.

2

Bao, Nguyen Dien Quoc, Le Hoang Chien, Chau Van Tao, and Trinh Hoa Lang. "Analysis of 12C+12C scattering using different nuclear density distributions." Science and Technology Development Journal 21, no. 3 (October 16, 2018): 78–83. http://dx.doi.org/10.32508/stdj.v21i3.431.

Texto completo

Resumen

Elastic 12C+12C angular distributions at three bombarding energies of 102.1, 112.0 and 126.1 MeV were analyzed in the framework of optical model (OM) and compared to the experimental data. The reality of the OM analysis using the double folding potential depends on the chosen nuclear density distributions. In this work, we use two available models of nuclear density distributions obtained from the electron scattering experiments and the density functional theory (DFT). The OM results show that the former gives better description of the 12C nuclear density distribution than the latter. Therefor

Los estilos APA, Harvard, Vancouver, ISO, etc.

3

Dehay, Dominique, and Jacek Leśkow. "Functional limit theory for the spectral covariance estimator." Journal of Applied Probability 33, no. 4 (December 1996): 1077–92. http://dx.doi.org/10.2307/3214987.

Texto completo

Resumen

Processes that exhibit repeatability in their kth-order moments are frequently studied in signal analysis. Such repeatability can be conveniently expressed with the help of almost periodicity. In particular, almost periodically correlated (APC) processes play an important role in the analysis of repeatable signals. This paper presents a study of asymptotic distributions of the estimator of the spectral covariance function for APC processes. It is demonstrated that, for a large class of APC processes, the functional central limit theorem holds.

Los estilos APA, Harvard, Vancouver, ISO, etc.

4

Dehay, Dominique, and Jacek Leśkow. "Functional limit theory for the spectral covariance estimator." Journal of Applied Probability 33, no. 04 (December 1996): 1077–92. http://dx.doi.org/10.1017/s002190020010049x.

Texto completo

Resumen

Processes that exhibit repeatability in their kth-order moments are frequently studied in signal analysis. Such repeatability can be conveniently expressed with the help of almost periodicity. In particular, almost periodically correlated (APC) processes play an important role in the analysis of repeatable signals. This paper presents a study of asymptotic distributions of the estimator of the spectral covariance function for APC processes. It is demonstrated that, for a large class of APC processes, the functional central limit theorem holds.

Los estilos APA, Harvard, Vancouver, ISO, etc.

5

Zeng, Ming, Yiping Tang, Jianguo Mi, and Chongli Zhong. "Improved Direct Correlation Function for Density Functional Theory Analysis of Pore Size Distributions." Journal of Physical Chemistry C 113, no. 40 (September 11, 2009): 17428–36. http://dx.doi.org/10.1021/jp902803t.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

6

Fux, Samuel, Karin Kiewisch, Christoph R. Jacob, Johannes Neugebauer, and Markus Reiher. "Analysis of electron density distributions from subsystem density functional theory applied to coordination bonds." Chemical Physics Letters 461, no. 4-6 (August 2008): 353–59. http://dx.doi.org/10.1016/j.cplett.2008.07.038.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

7

Chesneau, Christophe. "On a Logarithmic Weighted Power Distribution: Theory, Modelling and Applications." Journal of Mathematical Sciences: Advances and Applications 67, no. 1 (October 10, 2021): 1–59. http://dx.doi.org/10.18642/jmsaa_7100122214.

Texto completo

Resumen

Engineers, economists, hydrologists, social scientists, and behavioural scientists often deal with data belonging to the unit interval. One of the most common approaches for modeling purposes is the use of unit distributions, beginning with the classical power distribution. A simple way to improve its applicability is proposed by the transmuted scheme. We propose an alternative in this article by slightly modifying this scheme with a logarithmic weighted function, thus creating the log-weighted power distribution. It can also be thought of as a variant of the log-Lindley distribution, and some

Los estilos APA, Harvard, Vancouver, ISO, etc.

8

Koshmanenko, Volodymyr. "The theory of dynamical systems of conflict in the framework of functional analysis." Збірник Праць Інституту математики НАН України 20, no. 1 (August 17, 2023): 843–72. http://dx.doi.org/10.3842/trim.v20n1.530.

Texto completo

Resumen

In this article, we give an introduction to the mathematical setting of problems related to the phenomenon of conflict in terms of constructions in Hilbert spaces. The struggle (conflict, game) between opponents (adversaries, players) will be represented by operator transformations of vectors in Hilbert spaces and probabilistic distributions on the territory of life resources. The phenomenon of conflict as a contradiction between opponents appears in mathematical terms as an intersection the domains of definition for operators and overlapping of corresponding measures. Conflict interaction bet

Los estilos APA, Harvard, Vancouver, ISO, etc.

9

Blackmore, Denis, and Jack G. Zhou. "Fractal Analysis of Height Distributions of Anisotropic Rough Surfaces." Fractals 06, no. 01 (March 1998): 43–58. http://dx.doi.org/10.1142/s0218348x98000067.

Texto completo

Resumen

A general distribution function for the heights of anisotropic engineering surfaces is obtained by extending earlier work on surface profiles. The derivation starts from a functional description of surface heights that involves fractal quantities and is comprehensive enough to include almost all of the mathematical models for surface topography that have appeared in the literature. It is found that the distribution is in the form of a Gaussian function multiplied by a convergent power series, and the terms in the series depend in a fundamental way on the fractal parameters of the surface. This

Los estilos APA, Harvard, Vancouver, ISO, etc.

10

Thangarasu, S., V. Siva, A. Shameem, A. Murugan, S. Athimoolam, and S. Asath Bahadur. "Structural, Electronic, Molecular Orbital Analysis and Charge Distributions on Nitrate Salt of Guanidine through DFT and TD-DFT Methods." Asian Journal of Chemistry 33, no. 8 (2021): 1905–10. http://dx.doi.org/10.14233/ajchem.2021.23201.

Texto completo

Resumen

Guanidinium nitrate, a non-linear optical material has been systematically studied through quantum chemical (density functional theory and Hartree Fock) methods. Studies on Mulliken charge, Frontier molecular orbitals (FMOs) and hyperpolarizability analyses have been performed. The Mulliken population analyses were carried out for the optimized molecular geometry by HF and B3LYP methods with 6-311++G(d,p) levels. The molecular orbital parameters of guanidinium nitrate have been calculated by FMO analysis. Frontier molecular orbital (FMO) analysis indicates the electron delocalization on the gu

Los estilos APA, Harvard, Vancouver, ISO, etc.

11

Abe, Kazunori, Nouman Zobby, and Hikari Fujii. "Petrophysical Characterizations of Shale Gas Reservoirs of the Ranikot Formation in the Lower Indus Basin, Pakistan." EPI International Journal of Engineering 3, no. 2 (January 22, 2021): 103–7. http://dx.doi.org/10.25042/epi-ije.082020.02.

Texto completo

Resumen

The complex pore structure with nano-pores of shale gas reservoirs has an impact on the hydrocarbon storage and transport systems. We examined the pore structure of the shales of the Ranikot Formation in the Lower Indus Basin, Pakistan to investigate the full scaled pore size distributions by using a combination of techniques, mercury injection capillary pressure analysis and low pressure gas adsorption methods using N2 and CO2. Isotherm curves obtained N2 and CO2 adsorptions were interpreted using density functional theory analysis for describing the nano-scaled pore size distributions. The p

Los estilos APA, Harvard, Vancouver, ISO, etc.

12

Ayanbayev, Birzhan, Ilja Klebanov, Han Cheng Lie та T. J. Sullivan. "Γ -convergence of Onsager–Machlup functionals: I. With applications to maximum a posteriori estimation in Bayesian inverse problems". Inverse Problems 38, № 2 (28 грудня 2021): 025005. http://dx.doi.org/10.1088/1361-6420/ac3f81.

Texto completo

Resumen

Abstract The Bayesian solution to a statistical inverse problem can be summarised by a mode of the posterior distribution, i.e. a maximum a posteriori (MAP) estimator. The MAP estimator essentially coincides with the (regularised) variational solution to the inverse problem, seen as minimisation of the Onsager–Machlup (OM) functional of the posterior measure. An open problem in the stability analysis of inverse problems is to establish a relationship between the convergence properties of solutions obtained by the variational approach and by the Bayesian approach. To address this problem, we pr

Los estilos APA, Harvard, Vancouver, ISO, etc.

13

Astaiza-Gómez, José Gabriel. "Hypothesis testing with explosive time series. An approach to the theory of the functional central limit theorem." Journal de Ciencia e Ingeniería 16, no. 1 (June 1, 2024): 13–25. http://dx.doi.org/10.46571/jci.2024.1.3.

Texto completo

Resumen

Dealing with uncertainty about the true data generating process requires a differentiated perspective of the distributions in hypothesis testing. In particular, the realizations, or the observed data, generated by interactions that are naturally ordered in time, posits a need for a differentiated analysis with respect to the standard statistics available for hypothesis testing. The Functional Central Limit Theorem provides a framework that enables the researcher to build a statistic that fits his data and hypothesis at hand. In this paper I show some of the necessary conditions under which the

Los estilos APA, Harvard, Vancouver, ISO, etc.

14

Zhang, Yichao. "Transitivity Analysis of Hillary Clinton’s and Donald Trump’s First Television Debate." International Journal of Applied Linguistics and English Literature 6, no. 7 (October 10, 2017): 65. http://dx.doi.org/10.7575/aiac.ijalel.v.6n.7p.65.

Texto completo

Resumen

Halliday holds that all cultures reflect some universal meta-functions in the languages and proposes three such meta-functions: ideational, interpersonal, and textual. This paper employs the transitivity theory in Halliday’s Systemic Functional Linguistics to analyze the first television debate between Hillary Clinton and Donald Trump. Specifically, through a quantitative analysis, this paper tries to find the answers for the next two questions: First, what are the distributions of six processes used by the two candidates; are there any similarities and differences or some rules in the distrib

Los estilos APA, Harvard, Vancouver, ISO, etc.

15

Shama, Mustafa S., Farid El Ktaibi, Jamal N. Al Abbasi, Christophe Chesneau, and Ahmed Z. Afify. "Complete Study of an Original Power-Exponential Transformation Approach for Generalizing Probability Distributions." Axioms 12, no. 1 (January 7, 2023): 67. http://dx.doi.org/10.3390/axioms12010067.

Texto completo

Resumen

In this paper, we propose a flexible and general family of distributions based on an original power-exponential transformation approach. We call it the modified generalized-G (MGG) family. The elegance and significance of this family lie in the ability to modify the standard distributions by changing their functional forms without adding new parameters, by compounding two distributions, or by adding one or two shape parameters. The aim of this modification is to provide flexible shapes for the corresponding probability functions. In particular, the distributions of the MGG family can possess i

Los estilos APA, Harvard, Vancouver, ISO, etc.

16

Regazzini, Eugenio, Alessandra Guglielmi, and Giulia Di Nunno. "Theory and numerical analysis for exact distributions of functionals of a Dirichlet process." Annals of Statistics 30, no. 5 (October 2002): 1376–411. http://dx.doi.org/10.1214/aos/1035844980.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

17

Feichtinger, Hans G. "A Sequential Approach to Mild Distributions." Axioms 9, no. 1 (February 24, 2020): 25. http://dx.doi.org/10.3390/axioms9010025.

Texto completo

Resumen

The Banach Gelfand Triple ( S 0 , L 2 , S 0 ′ ) ( R d ) consists of S 0 ( R d ) , ∥ · ∥ S 0 , a very specific Segal algebra as algebra of test functions, the Hilbert space L 2 ( R d ) , ∥ · ∥ 2 and the dual space S 0 ′ ( R d ) , whose elements are also called “mild distributions”. Together they provide a universal tool for Fourier Analysis in its many manifestations. It is indispensable for a proper formulation of Gabor Analysis, but also useful for a distributional description of the classical (generalized) Fourier transform (with Plancherel’s Theorem and the Fourier Inversion Theorem as core

Los estilos APA, Harvard, Vancouver, ISO, etc.

18

Chang, Joel Q. L., and Vincent Y. F. Tan. "A Unifying Theory of Thompson Sampling for Continuous Risk-Averse Bandits." Proceedings of the AAAI Conference on Artificial Intelligence 36, no. 6 (June 28, 2022): 6159–66. http://dx.doi.org/10.1609/aaai.v36i6.20564.

Texto completo

Resumen

This paper unifies the design and the analysis of risk-averse Thompson sampling algorithms for the multi-armed bandit problem for a class of risk functionals ρ that are continuous and dominant. We prove generalised concentration bounds for these continuous and dominant risk functionals and show that a wide class of popular risk functionals belong to this class. Using our newly developed analytical toolkits, we analyse the algorithm ρ-MTS (for multinomial distributions) and prove that they admit asymptotically optimal regret bounds of risk-averse algorithms under the CVaR, proportional hazard,

Los estilos APA, Harvard, Vancouver, ISO, etc.

19

Lastoskie, Christian, Keith E. Gubbins, and Nicholas Quirke. "Pore size distribution analysis of microporous carbons: a density functional theory approach." Journal of Physical Chemistry 97, no. 18 (May 1993): 4786–96. http://dx.doi.org/10.1021/j100120a035.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

20

Dubey, Paromita, and Hans-Georg Müller. "Fréchet analysis of variance for random objects." Biometrika 106, no. 4 (October 29, 2019): 803–21. http://dx.doi.org/10.1093/biomet/asz052.

Texto completo

Resumen

Summary Fréchet mean and variance provide a way of obtaining a mean and variance for metric space-valued random variables, and can be used for statistical analysis of data objects that lie in abstract spaces devoid of algebraic structure and operations. Examples of such data objects include covariance matrices, graph Laplacians of networks and univariate probability distribution functions. We derive a central limit theorem for the Fréchet variance under mild regularity conditions, using empirical process theory, and also provide a consistent estimator of the asymptotic variance. These results

Los estilos APA, Harvard, Vancouver, ISO, etc.

21

Ozturk, Mustafa C., Dongming Xu, and José C. Príncipe. "Analysis and Design of Echo State Networks." Neural Computation 19, no. 1 (January 2007): 111–38. http://dx.doi.org/10.1162/neco.2007.19.1.111.

Texto completo

Resumen

The design of echo state network (ESN) parameters relies on the selection of the maximum eigenvalue of the linearized system around zero (spectral radius). However, this procedure does not quantify in a systematic manner the performance of the ESN in terms of approximation error. This article presents a functional space approximation framework to better understand the operation of ESNs and proposes an information-theoretic metric, the average entropy of echo states, to assess the richness of the ESN dynamics. Furthermore, it provides an interpretation of the ESN dynamics rooted in system theor

Los estilos APA, Harvard, Vancouver, ISO, etc.

22

Arenas-Gullo, A., F. Martínez-Manzano, and A. Fernández-Nieves. "Vortex flow, a couple important theorems, and an introduction to distributions." European Journal of Physics 43, no. 6 (September 15, 2022): 065802. http://dx.doi.org/10.1088/1361-6404/ac8706.

Texto completo

Resumen

Abstract We study vortex flow and perform a number of textbook calculations to highlight inconsistencies between results when using familiar, and widely important, mathematical theorems; these include Stokes’ theorem and a theorem that often enables interchanging field notions like irrotational and conservative, and their connection to scalar potentials and their associated exact differentials. The purpose is to use the familiar setting of a fluid vortex to go beyond conventional functional analysis and introduce students to the theory of distributions. After briefly doing this, we revisit vor

Los estilos APA, Harvard, Vancouver, ISO, etc.

23

Ning, Si-Yuan, Jing-Wen Cao, Xiao-Yan Liu, Hao-Jian Wu, Xiao-Qing Yuan, Xiao-Tong Dong, Yi-Ning Li, Yan Jiang, and Peng Zhang. "Computational Analysis of Hydrogen Bond Vibrations of Ice III in the Far-Infrared Band." Crystals 12, no. 7 (June 26, 2022): 910. http://dx.doi.org/10.3390/cryst12070910.

Texto completo

Resumen

The hydrogen-disordered structure of ice III makes it difficult to analyze its vibrational spectrum theoretically. To clarify the contribution of hydrogen bonds (HBs), we constructed a 24-molecule supercell to mimic the real structure and performed first-principles density functional theory calculations. The calculated curve of phonon density of states showed good correspondence with the experimental data. Based on the theory of two kinds of HB vibrational modes, we analyzed the distributions of two-bond modes and four-bond modes. The energy splitting of these modes results in a flat vibration

Los estilos APA, Harvard, Vancouver, ISO, etc.

24

Silva, Luís M., J. Marques de Sá, and Luís A. Alexandre. "The MEE Principle in Data Classification: A Perceptron-Based Analysis." Neural Computation 22, no. 10 (October 2010): 2698–728. http://dx.doi.org/10.1162/neco_a_00013.

Texto completo

Resumen

This letter focuses on the issue of whether risk functionals derived from information-theoretic principles, such as Shannon or Rényi's entropies, are able to cope with the data classification problem in both the sense of attaining the risk functional minimum and implying the minimum probability of error allowed by the family of functions implemented by the classifier, here denoted by min Pe. The analysis of this so-called minimization of error entropy (MEE) principle is carried out in a single perceptron with continuous activation functions, yielding continuous error distributions. In spite of

Los estilos APA, Harvard, Vancouver, ISO, etc.

25

Jia, Haikun, Shi Bin Wang, Nobumichi Tamura, and Philippe Goudeau. "Stress Relaxation Related to Spontaneous Thin Film Buckling: Correlation between Finite Element Calculations and Micro Diffraction Analysis." Quantum Beam Science 3, no. 1 (December 20, 2018): 1. http://dx.doi.org/10.3390/qubs3010001.

Texto completo

Resumen

Compressive residual stresses generated during thin film deposition may lead to undesirable film damage, such as delamination, buckling, and flaking, ultimately leading to the failure of the device employing the film. Understanding the residual stress generation and role in these damage mechanisms is necessary to preserve thin film integrity and optimize its functional properties. Thin shell theory has been used for decades to predict buckling but the results have not yet been correlated with experimental data since the techniques used to measure stress in metallic films were not able to do so

Los estilos APA, Harvard, Vancouver, ISO, etc.

26

Ningyi, Lan. "Analysis of the Thematic Structure and Thematic Progression Patterns of the Queen’s 2020 National Speech." English Literature and Language Review, no. 68 (October 17, 2020): 147–52. http://dx.doi.org/10.32861/ellr.68.147.152.

Texto completo

Resumen

Under the guidance of the theory of theme and rheme as well as thematic progression patterns, two significant components in Systemic Functional Linguistics, this paper discusses the thematic structure and thematic progression patterns of the Queen’s national speech “We will meet again!” which was delivered on April 5, 2020, when both England and the rest of the world were in the throes of the growing pandemic. With the use of quantitative and qualitative research methods, their distributions and the reasons are explored to figure out the thematic features, the effects, or the functions that ha

Los estilos APA, Harvard, Vancouver, ISO, etc.

27

Vologzhanina, Anna V., Svitlana V. Kats, Larisa V. Penkova, Vadim A. Pavlenko, Nikolay N. Efimov, Vadim V. Minin, and Igor L. Eremenko. "Combined analysis of chemical bonding in a CuIIdimer using QTAIM, Voronoi tessellation and Hirshfeld surface approaches." Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials 71, no. 5 (September 30, 2015): 543–54. http://dx.doi.org/10.1107/s2052520615015279.

Texto completo

Resumen

Interaction of 1-(1H-pyrazol-5-yl)ethanone oxime (H2PzOx) with copper(II) chloride in the presence of pyridine afforded a binuclear discrete [Cu2(HPzOx)2Cl2py2] complex, which was characterized by Fourier transform–IR and electron paramagnetic resonance (EPR) spectra, magnetochemistry and high-resolution X-ray diffraction experiments. Multipole refinement of X-ray diffraction data and density-functional theory (DFT) calculations of an isolated molecule allowed charge and spin distributions to be obtained for this compound. Magnetochemistry data, EPR spectra and DFT calculations of an isolated

Los estilos APA, Harvard, Vancouver, ISO, etc.

28

Morachkovska, Iryna, Lidiya Kurpa, Anna Linnik, Galina Timchenko, and Tetyana Shmatko. "Dynamic analysis of functional gradient porous sigmoidal sandwich plates." Bulletin of the National Technical University «KhPI» Series: Dynamics and Strength of Machines, no. 1 (December 21, 2023): 39–44. http://dx.doi.org/10.20998/2078-9130.2023.1.281191.

Texto completo

Resumen

Analysis of free vibrations of functionally graded (FG) porous sigmoid sandwich plates, is considered in this paper. The plate can have a complex geometric shape and various types of fastening. To solve the problem, we used the variational-structural method (RFM), which combines the theory of R-functions and variational method of Rayleigh-Ritz. The mathematical statement of the problem is carried out within the framework of the deformation theory of plates of the first order (FSDT). Plates are considered, the outer layers of which are made of functionally graded materials (FGM), and the core i

Los estilos APA, Harvard, Vancouver, ISO, etc.

29

Bock, Hans, Sven Holl, and Volker Krenzel. "Wechselwirkungen in Molekülkristallen, 166 [1, 2]. Polyiod-Moleküle I2C=CI2, (IC)4S, (IC)4NH, (IC)4N-CH3 und HCI3: Strukturbestimmung nach Kristallzüchtung oder durch Dichtefunktionaltheorie-Berechnung / Interaction in Molecular Crystals, 166 [1, 2], Polyiodo Molecules I2C=CI2, (IC)4S, (IC)4 NH, (IC)4N-CH and HCI3: Structure Determination Following Crystallization or by Density Functional Theory Calculation." Zeitschrift für Naturforschung B 56, no. 1 (January 1, 2001): 13–24. http://dx.doi.org/10.1515/znb-2001-0104.

Texto completo

Resumen

Abstract The structures of tri-and tetraiodo-substituted carbon compounds are determined either experimentally by X-Ray Structure Analysis or, because crystallization of tetraiodothiophene could not be achieved, approximated by Density Functional Theory optimization of structural data from a donor/acceptor complex. The structures show noteworthy details such as a second polymorph of tetraiodoethene crystallized by sublimation or herringbone crystal packing patterns of tetraiodopyrrole derivatives. All molecular geometries are discussed and compared based on relativistic density functional th

Los estilos APA, Harvard, Vancouver, ISO, etc.

30

Galvani, Marta, Chiara Bardelli, Silvia Figini, and Pietro Muliere. "A Bayesian Nonparametric Learning Approach to Ensemble Models Using the Proper Bayesian Bootstrap." Algorithms 14, no. 1 (January 3, 2021): 11. http://dx.doi.org/10.3390/a14010011.

Texto completo

Resumen

Bootstrap resampling techniques, introduced by Efron and Rubin, can be presented in a general Bayesian framework, approximating the statistical distribution of a statistical functional ϕ(F), where F is a random distribution function. Efron’s and Rubin’s bootstrap procedures can be extended, introducing an informative prior through the Proper Bayesian bootstrap. In this paper different bootstrap techniques are used and compared in predictive classification and regression models based on ensemble approaches, i.e., bagging models involving decision trees. Proper Bayesian bootstrap, proposed by Mu

Los estilos APA, Harvard, Vancouver, ISO, etc.

31

Ayad, Somia, Ali Laksaci, Saâdia Rahmani, and Rachida Rouane. "LOCAL LINEAR MODELLING OF THE CONDITIONAL DISTRIBUTION FUNCTION FOR FUNCTIONAL ERGODIC DATA." Mathematical Modelling and Analysis 27, no. 3 (August 12, 2022): 360–82. http://dx.doi.org/10.3846/mma.2022.14909.

Texto completo

Resumen

The focus of functional data analysis has been mostly on independent functional observations. It is therefore hoped that the present contribution will provide an informative account of a useful approach that merges the ideas of the ergodic theory and the functional data analysis by using the local linear approach. More precisely, we aim, in this paper, to estimate the conditional distribution function (CDF) of a scalar response variable given a random variable taking values in a semimetric space. Under the ergodicity assumption, we study the uniform almost complete convergence (with a rate), a

Los estilos APA, Harvard, Vancouver, ISO, etc.

32

Kocot, Antoni, Barbara Loska, Yuki Arakawa, Georg H. Mehl, and Katarzyna Merkel. "Study of the Experimental and Simulated Vibrational Spectra Together with Conformational Analysis of Thioether Cyanobiphenyl-Based Liquid Crystal Dimers." International Journal of Molecular Sciences 23, no. 14 (July 20, 2022): 8005. http://dx.doi.org/10.3390/ijms23148005.

Texto completo

Resumen

Infrared spectroscopy (IR) and quantum chemistry calculations that are based on the density functional theory (DFT) have been used to study the structure and molecular interactions of the nematic and twist-bend phases of thioether-linked dimers. Infrared absorbance measurements were conducted in a polarized beam for a homogeneously aligned sample in order to obtain more details about the orientation of the vibrational transition dipole moments. The distributions to investigate the structure and conformation of the molecule dihedral angle were calculated. The calculated spectrum was compared wi

Los estilos APA, Harvard, Vancouver, ISO, etc.

33

Sato, Jun. "Modern Analysis for Characterization of Pore Size Distribution by Non–Local Density Functional Theory." membrane 41, no. 1 (2016): 16–21. http://dx.doi.org/10.5360/membrane.41.16.

Texto completo

Los estilos APA, Harvard, Vancouver, ISO, etc.

34

Nitanda, Atsushi, Denny Wu, and Taiji Suzuki. "Particle dual averaging: optimization of mean field neural network with global convergence rate analysis*." Journal of Statistical Mechanics: Theory and Experiment 2022, no. 11 (November 1, 2022): 114010. http://dx.doi.org/10.1088/1742-5468/ac98a8.

Texto completo

Resumen

Abstract We propose the particle dual averaging (PDA) method, which generalizes the dual averaging method in convex optimization to the optimization over probability distributions with quantitative runtime guarantee. The algorithm consists of an inner loop and outer loop: the inner loop utilizes the Langevin algorithm to approximately solve for a stationary distribution, which is then optimized in the outer loop. The method can thus be interpreted as an extension of the Langevin algorithm to naturally handle nonlinear functional on the probability space. An important application of the propose

Los estilos APA, Harvard, Vancouver, ISO, etc.

35

Kumawat, Nitesh, Andrejs Tucs, Soumen Bera, Gennady N. Chuev, Marat Valiev, Marina V. Fedotova, Sergey E. Kruchinin, Koji Tsuda, Adnan Sljoka, and Amit Chakraborty. "Site Density Functional Theory and Structural Bioinformatics Analysis of the SARS-CoV Spike Protein and hACE2 Complex." Molecules 27, no. 3 (January 26, 2022): 799. http://dx.doi.org/10.3390/molecules27030799.

Texto completo

Resumen

The entry of the SARS-CoV-2, a causative agent of COVID-19, into human host cells is mediated by the SARS-CoV-2 spike (S) glycoprotein, which critically depends on the formation of complexes involving the spike protein receptor-binding domain (RBD) and the human cellular membrane receptor angiotensin-converting enzyme 2 (hACE2). Using classical site density functional theory (SDFT) and structural bioinformatics methods, we investigate binding and conformational properties of these complexes and study the overlooked role of water-mediated interactions. Analysis of the three-dimensional referenc

Los estilos APA, Harvard, Vancouver, ISO, etc.

36

Dadda, Noureddine, Amani Direm, Benoit Guillot, Christian Jelsch, and Nourredine Bnelai-cherif. "Charge-density analysis and electrostatic properties of a new hybrid compound." Acta Crystallographica Section A Foundations and Advances 70, a1 (August 5, 2014): C285. http://dx.doi.org/10.1107/s2053273314097149.

Texto completo

Resumen

2-carboxy-4-methylaniline is a biologically active molecule serving as a pharmaceutical intermediate [1]. We've synthesized, studied and refined the crystal structure of its derivative 2-carboxy-4-methylanilinium chloride monohydrate using three different electron-density models. In the first model, the ELMAM2 multipolar electron-density database [2] was transferred to the molecule. Theoretical structure factors were also computed from periodic density functional theory calculations [3] and yielded, after multipolar-atoms refinement, the second charge-density model. An alternative electron-den

Los estilos APA, Harvard, Vancouver, ISO, etc.

37

Joshi, Bhawani Datt, Ghanshyam Thakur, and Manoj Kumar Chaudhary. "Molecular Structure, Homo-Lumo and Vibrational Analysis Of Ergoline By Density Functional Theory." Scientific World 14, no. 14 (February 15, 2021): 21–30. http://dx.doi.org/10.3126/sw.v14i14.34978.

Texto completo

Resumen

In this work, quantum chemical study on a natural product ergoline has been presented using density functional theory (DFT) employing 6-311++G(d,p) basis set. A complete vibrational assignment has been performed for the theoretical FT-IR and Raman wavenumbers along with the potential energy distribution (PED) with the result of quantum chemical calculations. The structure–activity relationship has been interpreted by mapping electrostatic potential surface (MEP). Graphical representation of frontier molecular orbitals with their energy gap have been analyzed theoretically for both the gaseous

Los estilos APA, Harvard, Vancouver, ISO, etc.

38

Rafik, Abdellatif, Hafid Zouihri, and Taoufiq Guedira. "Investigation of Hybrid Organic-Inorganic Dihydrogen Phosphate by Hirshfeld Surface Analysis and Quantum Chemical Analysis." Chemistry & Chemical Technology 17, no. 2 (June 1, 2023): 244–52. http://dx.doi.org/10.23939/chcht17.02.244.

Texto completo

Resumen

This present work undertakes the study of organic-inorganic hybrid material, which has been obtained successfully by an acid-base reaction at room tem-perature and structurally studied by the single crystal X-ray diffraction method. N-(Dicyclopropylmethylamino)-4,5-dihydro-1,3-oxazolium dihydrogenphosphate [10-CN@DP] crystallizes in the triclinic system with the space group P-1. The X-ray structural analysis supported by a Hirshfeld surface analysis of the crystal structure indicates that the most significant contributions to the crystal packing are from H…H (63.3%), H…O/O…H (32.2%) and H…C/C…

Los estilos APA, Harvard, Vancouver, ISO, etc.

39

Mardiono, Mardiono. "TRANSITIVITY ANALYSIS OF KEYNOTE SPEECH OF JOKO WIDODO AT WEF EA 2015." Jurnal Pendidikan Bahasa Inggris Proficiency 3, no. 2 (July 31, 2021): 31. http://dx.doi.org/10.32503/proficiency.v3i2.1918.

Texto completo

Resumen

International political speeches have played an extremely important role in political environment and take broader public attention due to their political, economy, and cultural values manifested through the language used. Systemic–Functional Grammar introduced and developed by Halliday (1967) sets out that with languages there are ideational meta-function, interpersonal meta-function, and textual meta-function. Hiring the theory of transitivity from Halliday’s Systemic Functional Linguistics, this study focuses on analysing Joko Widodo’s keynote speech. The aim is to figure out the deeper mea

Los estilos APA, Harvard, Vancouver, ISO, etc.

40

Zou, Jingjing, Richard A. Davis, and Gennady Samorodnitsky. "EXTREME VALUE ANALYSIS WITHOUT THE LARGEST VALUES: WHAT CAN BE DONE?" Probability in the Engineering and Informational Sciences 34, no. 2 (January 30, 2019): 200–220. http://dx.doi.org/10.1017/s0269964818000542.

Texto completo

Resumen

AbstractIn this paper, we are concerned with the analysis of heavy-tailed data when a portion of the extreme values is unavailable. This research was motivated by an analysis of the degree distributions in a large social network. The degree distributions of such networks tend to have power law behavior in the tails. We focus on the Hill estimator, which plays a starring role in heavy-tailed modeling. The Hill estimator for these data exhibited a smooth and increasing “sample path” as a function of the number of upper order statistics used in constructing the estimator. This behavior became mor

Los estilos APA, Harvard, Vancouver, ISO, etc.

41

Mughal, Ehsan Ullah, Masoud Mirzaei, Amina Sadiq, Sana Fatima, Ayesha Naseem, Nafeesa Naeem, Nighat Fatima, et al. "Terpyridine-metal complexes: effects of different substituents on their physico-chemical properties and density functional theory studies." Royal Society Open Science 7, no. 11 (November 2020): 201208. http://dx.doi.org/10.1098/rsos.201208.

Texto completo

Resumen

A series of different substituted terpyridine (tpy)-based ligands have been synthesized by Kröhnke method. Their binding behaviour was evaluated by complexing them with Co(II), Fe(II) and Zn(II) ions, which resulted in interesting coordination compounds with formulae, [Zn(tpy) 2 ]PF 6 , [Co(tpy) 2 ](PF 6 ) 2 , [Fe(tpy) 2 ](PF 6 ) 2 and interesting spectroscopic properties. Their absorption and emission behaviours in dilute solutions were investigated in order to explain structure–property associations and demonstrate the impact of different aryl substituents on the terpyridine scaffold as well

Los estilos APA, Harvard, Vancouver, ISO, etc.

42

Chernozhukov, Victor, Iván Fernández-Val, Whitney Newey, Sami Stouli, and Francis Vella. "Semiparametric estimation of structural functions in nonseparable triangular models." Quantitative Economics 11, no. 2 (2020): 503–33. http://dx.doi.org/10.3982/qe1239.

Texto completo

Resumen

Triangular systems with nonadditively separable unobserved heterogeneity provide a theoretically appealing framework for the modeling of complex structural relationships. However, they are not commonly used in practice due to the need for exogenous variables with large support for identification, the curse of dimensionality in estimation, and the lack of inferential tools. This paper introduces two classes of semiparametric nonseparable triangular models that address these limitations. They are based on distribution and quantile regression modeling of the reduced form conditional distributions

Los estilos APA, Harvard, Vancouver, ISO, etc.

43

Pei, Zhenxing. "Free vibration Analysis of Beams with Functional Gradient Materials with Cracks." Academic Journal of Science and Technology 11, no. 1 (May 21, 2024): 265–69. http://dx.doi.org/10.54097/eawe6q56.

Texto completo

Resumen

The article presents the development of a dynamic model for a functionally graded material (FGM) beam incorporating cracks. Initially, it assumes an exponential distribution of material properties along the thickness direction of the beam and simulates the opening crack using a zero-mass rotational spring model. This approach enables the calculation of bending stiffness and local flexibility at the cracked section. Subsequently, drawing upon Timoshenko beam theory and von Kármán geometric nonlinear theory, the study formulates the energy equation of the beam and establishes the partial differe

Los estilos APA, Harvard, Vancouver, ISO, etc.

44

Aydogdu, Immihan Sezen, Ilkay Gumus, and Hakan Arslan. "Hirshfeld surface and theoretical studies of 2,2,2-trichloro-N,N-bis(2-(2,2,2-trichloroacetamido)phenyl)acetamide compound." European Journal of Chemistry 10, no. 4 (December 31, 2019): 323–35. http://dx.doi.org/10.5155/eurjchem.10.4.323-335.1920.

Texto completo

Resumen

The vibrational frequencies, atomic charges and the related properties of the 2,2,2-trichloro-N,N-bis(2-(2,2,2-trichloroacetamido)phenyl)acetamide (H2LNNN) were investi-gated by Ab-initio Hartree-Fock (HF) and Density Functional Theory (DFT) methods such as BLYP, B3LYP, B3PW91 and mPW1PW91 functionals with 6-31G(d,p) and 6-311G(d,p) basis sets. The experimentally determined parameters were compared with those calculated theoretically and they were found to complement each other with a very good correlation. The theoretical vibrational spectrum of H2LNNN molecule was interpreted by means of pot

Los estilos APA, Harvard, Vancouver, ISO, etc.

45

Papanyan, Zakar Kh, and Liana S. Gabrielyan. "PREDICTION OF DIPROPYL SULFONE PROPERTIES BY DENSITY FUNCTIONAL THEORY METHODS: CONFORMATIONAL ANALYSIS AND SIMULATED IR SPECTRUM." Proceedings of the YSU B: Chemical and Biological Sciences 56, no. 3 (259) (December 1, 2022): 185–202. http://dx.doi.org/10.46991/pysu:b/2022.56.3.185.

Texto completo

Resumen

In this work, the conformational and vibrational analysis of dipropyl sulfone in its isolated gaseous state with identification of all stable conformers, their energy and degeneracy, relative population determined by Boltzmann distribution, as well as IR spectra have been performed by density functional theory (DFT) methods. Several DFT methods and basis sets were tested. It was demonstrated that the various local and hybrid DFT functionals such as well-known B3LYP, regardless of the size of basis sets, completely fail in the prediction of correct molecular structures, let alone the IR spectra

Los estilos APA, Harvard, Vancouver, ISO, etc.

46

Huang, Chao, Jianquan Liu, Lihan Hai, Zenghao Dong, and Xinyi Niu. "Symmetric Heat Transfer Pattern of Fuel Assembly Subchannels in a Sodium-Cooled Fast Reactor." Symmetry 14, no. 11 (November 16, 2022): 2423. http://dx.doi.org/10.3390/sym14112423.

Texto completo

Resumen

The method outlined in this paper is convenient and effective for studying the thermal performance of fuel assemblies cooled with sodium fast reactors using the subchannel procedure. To initially study an optimization model for a symmetric single fuel assembly heat transfer pattern analysis in a fast sodium-cooled reactor based on subchannel calculations, this paper innovatively proposes a subchannel heat transfer analysis method with the entransy dissipation theory, which can solve the limitations and inaccuracies of the traditional entropy method such as poor applicability for heat transfer

Los estilos APA, Harvard, Vancouver, ISO, etc.

47

Kolokoltsov, Vassili N. "The Rates of Convergence for Functional Limit Theorems with Stable Subordinators and for CTRW Approximations to Fractional Evolutions." Fractal and Fractional 7, no. 4 (April 17, 2023): 335. http://dx.doi.org/10.3390/fractalfract7040335.

Texto completo

Resumen

From the initial development of probability theory to the present days, the convergence of various discrete processes to simpler continuous distributions remains at the heart of stochastic analysis. Many efforts have been devoted to functional central limit theorems (also referred to as the invariance principle), dealing with the convergence of random walks to Brownian motion. Though quite a lot of work has been conducted on the rates of convergence of the weighted sums of independent and identically distributed random variables to stable laws, the present paper is the first to supply the rate

Los estilos APA, Harvard, Vancouver, ISO, etc.

48

Ahmed, N. U. "Generalized functionals of Brownian motion." Journal of Applied Mathematics and Stochastic Analysis 7, no. 3 (January 1, 1994): 247–67. http://dx.doi.org/10.1155/s1048953394000250.

Texto completo

Resumen

In this paper we discuss some recent developments in the theory of generalized functionals of Brownian motion. First we give a brief summary of the Wiener-Ito multiple Integrals. We discuss some of their basic properties, and related functional analysis on Wiener measure space. then we discuss the generalized functionals constructed by Hida. The generalized functionals of Hida are based on L2-Sobolev spaces, thereby, admitting only Hs, s∈R valued kernels in the multiple stochastic integrals. These functionals are much more general than the classical Wiener-Ito class. The more recent developmen

Los estilos APA, Harvard, Vancouver, ISO, etc.

49

TAFERGUENNIT, Manel, Noura KICHOU, and Zakia HANK. "Comparative Experimental and Theoretical Study on the Structure of Potassium 2,4-Hexadienoate: Structure-Activity Relationship." Eurasia Proceedings of Science Technology Engineering and Mathematics 23 (October 16, 2023): 69–84. http://dx.doi.org/10.55549/epstem.1361714.

Texto completo

Resumen

For the first time, a density functional theory (DFT) study was conducted on the structure of a well-known antibacterial agent namely potassium 2,4-Hexadienoate, in order to elucidate its vibrational, electronic and reactivity proprieties. Structure optimization was performed using three common hybrid functionals (DFT/ B3LYP-D3; DFT/ M05-2X and DFT/M06-2X) to identify the suitable functional. Geometric parameters, IR and UV-vis spectra were well reproduced when using DFT/M06-2X with 6-311(d)G+ basis set (R2 = 0.99913). The assimilation of IR frequencies has been achieved using potential energy

Los estilos APA, Harvard, Vancouver, ISO, etc.

50

Zhabanov, Yuriy A., Igor V. Ryzhov, Ilya A. Kuzmin, Alexey V. Eroshin, and Pavel A. Stuzhin. "DFT Study of Molecular and Electronic Structure of Y, La and Lu Complexes with Porphyrazine and Tetrakis(1,2,5-thiadiazole)porphyrazine." Molecules 26, no. 1 (December 29, 2020): 113. http://dx.doi.org/10.3390/molecules26010113.

Texto completo

Resumen

Electronic and geometric structures of Y, La and Lu complexes with porphyrazine (Pz) and tetrakis(1,2,5-thiadiazole)porphyrazine (TTDPz) were investigated by density functional theory (DFT) calculations and compared. The nature of the bonds between metal atoms and nitrogen atoms has been described using the analysis of the electron density distribution in the frame of Bader’s quantum theory of atoms in molecule (QTAIM). Simulation and interpretation of electronic spectra were performed with use of time-dependent density functional theory (TDDFT) calculations. Description of calculated IR spect

Los estilos APA, Harvard, Vancouver, ISO, etc.

Ofrecemos descuentos en todos los planes premium para autores cuyas obras están incluidas en selecciones literarias temáticas. ¡Contáctenos para obtener un código promocional único!