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Journal articles on the topic 'Stiff problémy'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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1

Butcher, John C., and Nicolette Rattenbury. "ARK methods for stiff problems." Applied Numerical Mathematics 53, no. 2-4 (2005): 165–81. http://dx.doi.org/10.1016/j.apnum.2004.09.033.

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2

CÜREBAL, Ahmet, Serkan KOÇTEPE, and Tamer EREN. "Tanıtım Festivalinde Personel Çizelgeleme Problemi: Bir Uygulama." Gazi Journal of Engineering Sciences 6, no. 3 (2020): 217–29. http://dx.doi.org/10.30855/gmbd.2020.03.05.

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3

Rico, A., M. A. Garrido, and J. Rodríguez. "Problemática en la determinación de módulo elástico y dureza de materiales cerámicos de alta rigidez mediante indentación." Boletín de la Sociedad Española de Cerámica y Vidrio 47, no. 2 (2008): 110–16. http://dx.doi.org/10.3989/cyv.2008.v47.i2.203.

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4

Bahodir, Mardonov. "The Problems Of Raising The Staff Efficiency In Military Education Institutions." American Journal of Political Science Law and Criminology 03, no. 08 (2021): 22–27. http://dx.doi.org/10.37547/tajpslc/volume03issue08-05.

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The article is devoted to the issues of training military personnel in the context of independence of our country. Based on the analysis of the research done in this area, the author puts forward the directions of further strengthening and development of our national army on the basis of spiritual values. The article also shows the prospects of educating the younger military generation in the spirit of patriotism, based on the national historical experience.

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5

Li, Liping, and Wenjie Sun. "On stiff problems via Dirichlet forms." Annales de l'Institut Henri Poincaré, Probabilités et Statistiques 56, no. 3 (2020): 2051–80. http://dx.doi.org/10.1214/19-aihp1028.

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6

Michels, Dominik L., Gerrit A. Sobottka, and Andreas G. Weber. "Exponential integrators for stiff elastodynamic problems." ACM Transactions on Graphics 33, no. 1 (2014): 1–20. http://dx.doi.org/10.1145/2508462.

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7

Della Torre, E. "Stiff nodes in numerical micromagnetic problems." IEEE Transactions on Magnetics 29, no. 6 (1993): 2371–73. http://dx.doi.org/10.1109/20.281013.

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8

Urbani, A. M. "Metodi row modificati per problemi stiff." Calcolo 27, no. 1-2 (1990): 89–102. http://dx.doi.org/10.1007/bf02576150.

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9

Belov, A. A., N. N. Kalitkin, P. E. Bulatov, and E. K. Zholkovskii. "Explicit methods for integrating stiff Cauchy problems." Доклады Академии наук 485, no. 5 (2019): 553–57. http://dx.doi.org/10.31857/s0869-56524855553-557.

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An explicit method for solving stiff Cauchy problems is proposed. The method relies on explicit schemes and a step size selection algorithm based on the curvature of an integral curve. Closed-form formulas are derived for finding the curvature. For Runge-Kutta schemes with up to four stages, the corresponding sets of coefficients are given. The method is validated on a test problem with a given exact solution. It is shown that the method is as accurate and robust as implicit methods, but is substantially superior to them in efficiency. A numerical example involving chemical kinetics computatio

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10

Novikov, E. A. "(2,1)-Method for solving stiff nonautonomous problems." Automation and Remote Control 73, no. 1 (2012): 191–97. http://dx.doi.org/10.1134/s0005117912010183.

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11

Belov, A. A., N. N. Kalitkin, and I. P. Poshivaylo. "Geometrically adaptive grids for stiff Cauchy problems." Doklady Mathematics 93, no. 1 (2016): 112–16. http://dx.doi.org/10.1134/s1064562416010129.

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12

Belov, A. A., N. N. Kalitkin, P. E. Bulatov, and E. K. Zholkovskii. "Explicit Methods for Integrating Stiff Cauchy Problems." Doklady Mathematics 99, no. 2 (2019): 230–34. http://dx.doi.org/10.1134/s1064562419020273.

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13

Lewis, D., and E. Della Torre. "Identification of stiff modes in micromagnetic problems." IEEE Transactions on Magnetics 33, no. 2 (1997): 1596–99. http://dx.doi.org/10.1109/20.582572.

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14

Butcher, J. C., J. R. Cash, and M. T. Diamantakis. "DESI methods for stiff initial-value problems." ACM Transactions on Mathematical Software 22, no. 4 (1996): 401–22. http://dx.doi.org/10.1145/235815.235818.

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15

Мейтарчан, Світлана. "Проблеми діагностики психологічної готовності майбутніх керівників до мотивування персоналу". Теоретичні і прикладні проблеми психології, № 2(52) (2020): 300–309. http://dx.doi.org/10.33216/2219-2654-2020-52-2-300-309.

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Статтю присвячено проблемі розробки опитувальника для діагностики уподобань типу і стратегії мотивуючого впливу керівника на персонал. Проаналізовані різні підходи до діагностики здатності керівника здійснювати мотивування персоналу організації, якості і способів мотивування персоналу керівником. Представлені результати дослідження уявлень майбутніх керівників про ефективне і дієве мотивування персоналу організації. На основі факторного аналізу виділені типи мотивування, до яких виявляють схильність майбутні керівники. У результаті проведеного дослідження був розроблений опитувальник для діагн

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16

Vinjam, Maruthi Ravi, Priya Shanmugarajan, and Helen Ford. "STIFF PERSON SYNDROME PRESENTING AS ‘STIFF EYES’." Journal of Neurology, Neurosurgery & Psychiatry 86, no. 11 (2015): e4.125-e4. http://dx.doi.org/10.1136/jnnp-2015-312379.36.

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A 47-year previously fit and well lady presented with 6 weeks history of generalised lethargy, weight loss and neck pain. Her examination revealed left supra-clavicular lymph nodes. Subsequent investigations revealed left grade 2 invasive ductal carcinoma of her left breast. This was treated with local excision.She presented to hospital four weeks following her surgery with progressive double vision and unsteadiness. Her cranial nerve examination showed severly restricted pursuit and saccadic horizontal eye movements with intact vertical eye movements. She had normal strength with intact deep

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17

Wieczorek, Mariusz. "Selected Problems of Regulations Concerning the Scientific and Teaching Staff Time of Work." Annales Universitatis Mariae Curie-Skłodowska, sectio G (IUS) 61, no. 1 (2014): 177. http://dx.doi.org/10.17951/g.2014.61.1.177.

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18

Hori, Rie S. "Progress and problems of gender equality in Japanese academics and geosciences." Advances in Geosciences 53 (September 4, 2020): 195–203. http://dx.doi.org/10.5194/adgeo-53-195-2020.

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Abstract. In its gender equality status, Japan lags behind the European Union (EU) and other Organisation for Economic Co-operation and Development (OECD) countries. Only 16.7 % of academic staff in national universities are women. Although there has been a slow improvement during the last 45 years, the percentage of female staff remains particularly low in the STEM (science, technology, engineering, and mathematics) fields. In 2018, female stuff accounted for only 12.3 % in agriculture, 8.7 % in science, and 6.2 % in engineering. The number of female graduate students and the number of female

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19

Cash, J. R., and S. Considine. "An MEBDF code for stiff initial value problems." ACM Transactions on Mathematical Software 18, no. 2 (1992): 142–55. http://dx.doi.org/10.1145/146847.146922.

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20

Skvortsov, L. M. "Diagonally implicit Runge-Kutta methods for stiff problems." Computational Mathematics and Mathematical Physics 46, no. 12 (2006): 2110–23. http://dx.doi.org/10.1134/s0965542506120098.

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21

van der Veen, W. A. "Step-parallel algorithms for stiff initial value problems." Computers & Mathematics with Applications 30, no. 11 (1995): 9–23. http://dx.doi.org/10.1016/0898-1221(95)00160-z.

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22

Jung, Chang-Yeol, and Thien Binh Nguyen. "Semi-analytical Time Differencing Methods for Stiff Problems." Journal of Scientific Computing 63, no. 2 (2014): 355–73. http://dx.doi.org/10.1007/s10915-014-9897-y.

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23

González-Pinto, S., and R. Rojas-Bello. "Speeding up Newton-type iterations for stiff problems." Journal of Computational and Applied Mathematics 181, no. 2 (2005): 266–79. http://dx.doi.org/10.1016/j.cam.2004.12.002.

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24

Auzinger, W., R. Frank, and G. Kirlinger. "A note on convergence concepts for stiff problems." Computing 44, no. 3 (1990): 197–208. http://dx.doi.org/10.1007/bf02262216.

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25

Auzinger, W., R. Frank, and G. Kirlinger. "Modern convergence theory for stiff initial-value problems." Journal of Computational and Applied Mathematics 45, no. 1-2 (1993): 5–16. http://dx.doi.org/10.1016/0377-0427(93)90260-i.

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26

Novati, P. "An Explicit One-Step Method for Stiff Problems." Computing 71, no. 2 (2003): 133–51. http://dx.doi.org/10.1007/s00607-003-0021-7.

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27

Almuslimani, Ibrahim, and Gilles Vilmart. "Explicit Stabilized Integrators for Stiff Optimal Control Problems." SIAM Journal on Scientific Computing 43, no. 2 (2021): A721—A743. http://dx.doi.org/10.1137/19m1294216.

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28

Puzynya, T. A. "MANAGEMENT PROBLEMS OF STAFF MOTIVATION." Russian Journal of Agricultural and Socio-Economic Sciences 45, no. 9 (2015): 6–9. http://dx.doi.org/10.18551/rjoas.2015-09.02.

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29

Rubington, Earl. "Staff Problems in Halfway Houses." Alcoholism Treatment Quarterly 2, no. 2 (1985): 29–47. http://dx.doi.org/10.1300/j020v02n02_03.

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30

Lorin, E., and V. Seignole. "Convection Systems with Stiff Source Terms." Mathematical Models and Methods in Applied Sciences 13, no. 07 (2003): 971–1018. http://dx.doi.org/10.1142/s0218202503002799.

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The aim of this paper is the numerical treatment of some convection systems with stiff relaxation source-terms. We will first define the notion of stiffness for such systems and will select some prototypical and physical problems. We will introduce a new numerical method in order to solve accurately this type of systems. Numerical comparisons will be performed on the evoked problems.

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31

Gómez, Delfina, Sergey A. Nazarov, and Eugenia Pérez. "Spectral stiff problems in domains surrounded by thin stiff and heavy bands: Local effects for eigenfunctions." Networks & Heterogeneous Media 6, no. 1 (2011): 1–35. http://dx.doi.org/10.3934/nhm.2011.6.1.

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32

FALEICHIK, B. V. "ANALYTIC ITERATIVE PROCESSES AND NUMERICAL ALGORITHMS FOR STIFF PROBLEMS." Computational Methods in Applied Mathematics 8, no. 2 (2008): 116–29. http://dx.doi.org/10.2478/cmam-2008-0008.

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AbstractThe goal of the research is to construct practicable numerical algorithms for stiff systems of ordinary differential equations which let you increase the accuracy of the approximate solution without decreasing the length of the time interval. To achieve this goal, we have constructed a family of new iterative analytic processes generalising the Picard process. For a basic representative of this family, we demon-strate its better convergence properties on a scalar linear problem in comparison with the classical Picard process. For the general form of such iterative processes, we discuss

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33

Adesanya, A. O., R. O. Onsachi, and M. R. Odekunle. "New Algorithm for First order Stiff Initial Value Problems." Fasciculi Mathematici 58, no. 1 (2017): 19–28. http://dx.doi.org/10.1515/fascmath-2017-0002.

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AbstractIn this paper, we consider the development and implementation of algorithms for the solution of stiff first order initial value problems. Method of interpolation and collocation of basis function to give system of nonlinear equations which is solved for the unknown parameters to give a continuous scheme that is evaluated at selected grid points to give discrete methods. The stability properties of the method is verified and numerical experiments show that the new method is efficient in handling stiff problems.

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34

Farrell, P. A. "Uniform and optimal schemes for stiff initial-value problems." Computers & Mathematics with Applications 13, no. 12 (1987): 925–36. http://dx.doi.org/10.1016/0898-1221(87)90065-4.

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35

Belov, A. A., and N. N. Kalitkin. "Curvature-based grid step selection for stiff Cauchy problems." Mathematical Models and Computer Simulations 9, no. 3 (2017): 305–17. http://dx.doi.org/10.1134/s207004821703005x.

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36

Huang, Chengming, Qianshun Chang, and Aiguo Xiao. "B-convergence of general linear methods for stiff problems." Applied Numerical Mathematics 47, no. 1 (2003): 31–44. http://dx.doi.org/10.1016/s0168-9274(03)00051-5.

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37

Kreiss, Heinz-Otto, N. K. Nichols, and David L. Brown. "Numerical Methods for Stiff Two-Point Boundary Value Problems." SIAM Journal on Numerical Analysis 23, no. 2 (1986): 325–68. http://dx.doi.org/10.1137/0723023.

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38

Griepentrog, E., and A. Möbius. "Effective Realization of Numerical Integration Method for Stiff Problems." ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik 65, no. 11 (1985): 561–67. http://dx.doi.org/10.1002/zamm.19850651112.

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39

Boscarino, Sebastiano, Jing-Mei Qiu, and Giovanni Russo. "Implicit-Explicit Integral Deferred Correction Methods for Stiff Problems." SIAM Journal on Scientific Computing 40, no. 2 (2018): A787—A816. http://dx.doi.org/10.1137/16m1105232.

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40

Ahmad, R. R., and N. Yaacob. "Third-order composite Runge–Kutta method for stiff problems." International Journal of Computer Mathematics 82, no. 10 (2005): 1221–26. http://dx.doi.org/10.1080/00207160512331331039.

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41

Musa, H., M. B. Suleiman, F. Ismail, N. Senu, and Z. B. Ibrahim. "An Accurate Block Solver for Stiff Initial Value Problems." ISRN Applied Mathematics 2013 (August 28, 2013): 1–10. http://dx.doi.org/10.1155/2013/567451.

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New implicit block formulae that compute solution of stiff initial value problems at two points simultaneously are derived and implemented in a variable step size mode. The strategy for changing the step size for optimum performance involves halving, increasing by a multiple of 1.7, or maintaining the current step size. The stability analysis of the methods indicates their suitability for solving stiff problems. Numerical results are given and compared with some existing backward differentiation formula algorithms. The results indicate an improvement in terms of accuracy.

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42

Wright, R., J. Cash, and G. Moore. "Mesh selection for stiff two-point boundary value problems." Numerical Algorithms 7, no. 2 (1994): 205–24. http://dx.doi.org/10.1007/bf02140684.

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43

Butcher, J. C. "High order A-stable numerical methods for stiff problems." Journal of Scientific Computing 25, no. 1-2 (2005): 51–66. http://dx.doi.org/10.1007/bf02728982.

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44

Alonso-Mallo, I., B. Cano, and M. J. Moreta. "Stable Runge–Kutta–Nyström methods for dissipative stiff problems." Numerical Algorithms 42, no. 2 (2006): 193–203. http://dx.doi.org/10.1007/s11075-006-9038-2.

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45

Butcher, J. C. "High Order A-stable Numerical Methods for Stiff Problems." Journal of Scientific Computing 25, no. 1 (2005): 51–66. http://dx.doi.org/10.1007/s10915-004-4632-8.

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46

Schmitt, B. A., R. Weiner, and K. Erdmann. "Implicit parallel peer methods for stiff initial value problems." Applied Numerical Mathematics 53, no. 2-4 (2005): 457–70. http://dx.doi.org/10.1016/j.apnum.2004.08.019.

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47

Vandekerckhove, Christophe, and Dirk Roose. "Accuracy analysis of acceleration schemes for stiff multiscale problems." Journal of Computational and Applied Mathematics 211, no. 2 (2008): 181–200. http://dx.doi.org/10.1016/j.cam.2006.11.010.

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48

Auzinger, W., R. Frank, and G. Kirlinger. "Extending convergence theory for nonlinear stiff problems part I." BIT Numerical Mathematics 36, no. 4 (1996): 635–52. http://dx.doi.org/10.1007/bf01733784.

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49

Cong, Nguyen huu. "A parallel DIRK method for stiff initial-value problems." Journal of Computational and Applied Mathematics 54, no. 1 (1994): 121–27. http://dx.doi.org/10.1016/0377-0427(94)90399-9.

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50

Kmieciak, Błażej. "Problem tajemnicy psychiatrycznej w kontekście dostępu pracowników niemedycznych do informacji o pacjencie." Psychiatria i Psychologia Kliniczna 14, no. 1 (2014): 50–54. http://dx.doi.org/10.15557/pipk.2014.0006.

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