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Academic literature on the topic 'And N S W ) Mathematical models'

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Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "And N S W ) Mathematical models"

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Carqueville, Nils, and Flavio Montiel Montoya. "Extending Landau-Ginzburg Models to the Point." Communications in Mathematical Physics 379, no. 3 (October 7, 2020): 955–77. http://dx.doi.org/10.1007/s00220-020-03871-5.

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Abstract We classify framed and oriented 2-1-0-extended TQFTs with values in the bicategories of Landau-Ginzburg models, whose objects and 1-morphisms are isolated singularities and (either $$\mathbb {Z}_2$$ Z 2 - or $$(\mathbb {Z}_2 \times \mathbb {Q})$$ ( Z 2 × Q ) -graded) matrix factorisations, respectively. For this we present the relevant symmetric monoidal structures and find that every object $$W\in \mathbb {k}[x_1,\dots ,x_n]$$ W ∈ k [ x 1 , ⋯ , x n ] determines a framed extended TQFT. We then compute the Serre automorphisms $$S_W$$ S W to show that W determines an oriented extended TQFT if the associated category of matrix factorisations is $$(n-2)$$ ( n - 2 ) -Calabi-Yau. The extended TQFTs we construct from W assign the non-separable Jacobi algebra of W to a circle. This illustrates how non-separable algebras can appear in 2-1-0-extended TQFTs, and more generally that the question of extendability depends on the choice of target category. As another application, we show how the construction of the extended TQFT based on $$W=x^{N+1}$$ W = x N + 1 given by Khovanov and Rozansky can be derived directly from the cobordism hypothesis.
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Zolotnitsky, Aleksandr, Nataliy Sytnik, Sergei Chernyi, and Natalya Logunova. "Analysis of the Dynamics of Marine Structures and Species with Criterial Mathematical Models." Journal of Marine Science and Engineering 9, no. 12 (December 14, 2021): 1431. http://dx.doi.org/10.3390/jmse9121431.

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The influence of the area of artificial substrates (collectors) on the biological parameters of populations of mussels (Mytilus galloprovincialis Lamarck) during their cultivation in the Black Sea has been investigated. For growing mollusks, four types of collectors were used, with different relative areas (ω), i.e., with different ratios of the substrate area (S) per unit length of the collector (L), which were 0.09, 0.21, 0.34, and 0.55. It was found that, during a 1.5-year cultivation, the density (N, ind./m) and biomass (B, kg/m) change and reach a certain stationary state, determined by the relative area of the substrate. It was shown that, on collectors with a higher value of ω, there was a decrease in the average length (L, mm) and weight (W, g) of the mollusk yield. The Boysen–Jensen method was used to calculate the total production of mollusks (P), elimination (E), and specific production (P/B coefficient) for each type of reservoir, and it was shown that P increased with an increase in the substrate area, while E and P/B coefficients decreased. Based on the analysis of the obtained results, it was concluded that during the cultivation of mussels these parameters are regulated by density-dependent population factors (intraspecific competition) for space (substrate) and food.
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Mendes, Thiago Fernando, and Lourdes Maria Werle de Almeida. "Signos interpretantes em atividades de Modelagem Matemática (The interpretant signs produced in mathematical modelling activities)." Revista Eletrônica de Educação 14 (March 3, 2020): 3504064. http://dx.doi.org/10.14244/198271993504.

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In this paper we investigate the interpretant signs production during mathematical modelling activities development. The theoretical framework is based on the relationship between mathematical modelling and some elements of the semiotics structured by Charles Sanders Peirce, more specifically in his interpretant theory. This theoretical framework is associated with an empirical research in which modelling activities are developed by students of a Degree in Mathematics in a differential and integral calculus subject. The analysis of the activities follows qualitative research directions and leads us to infer that the students produced different interpretant signs when they developed mathematical modelling activities. In the warm up activity development it was possible to identify immediate interpretant signs, while during the follow up activities the students produced dynamic interpretants and some final interpretants for the extreme function values. In general, the interpretant signs give evidence of how the derivative was being used by the students to decide on the existence of maximum or minimum values of a function obtained when they developed mathematical modeling activities.ResumoNeste artigo investigamos a produção de signos interpretantes no desenvolvimento de atividades de modelagem matemática. O quadro teórico em que se fundamenta nossa pesquisa articula a modelagem matemática na Educação Matemática e elementos da semiótica estruturada por Charles Sanders Peirce e reconhecida na literatura como semiótica peirceana, com foco na denominada teoria dos signos interpretantes. As argumentações teóricas são associadas a uma pesquisa empírica em que uma sequência de atividades de modelagem matemática foi desenvolvida com alunos de um curso de licenciatura em matemática na disciplina de cálculo diferencial e integral I. A análise das atividades segue encaminhamentos da pesquisa qualitativa e nos leva a inferir que, na sequência de atividades de modelagem matemática, signos interpretantes imediatos são mais evidentes na atividade de aquecimento, enquanto interpretantes dinâmicos e interpretantes finais podem ser identificados com mais frequência nas atividades de acompanhamento. De modo geral, os interpretantes dão indícios de como a derivada foi sendo usada pelos alunos para deliberar sobre a existência de valor máximo ou valor mínimo nos problemas investigados nas atividades de modelagem matemática.Palavras-chave: Educação matemática, Modelagem matemática, Semiótica peirceana.Keywords: Mathematics education, Mathematical modeling, Peircean semiotics.ReferencesALMEIDA, L. M. W. Um olhar semiótico sobre modelos e modelagem: metáforas como foco de análise. Zetetiké. FE-Unicamp, v. 18, número temático, p. 387-414, 2010.ALMEIDA, L. M. W. Considerations on the use of mathematics in modeling activities. ZDM, v. 50, p. 19-30, 2018.ALMEIDA, L. M. W.; BRITO, D. S. Atividades de Modelagem Matemática: que sentido os alunos podem lhe atribuir?. Ciência e Educação (UNESP), 11, 1-16, 2005.ALMEIDA, L. M. W.; SILVA, K. A. P. A Ação dos Signos e o Conhecimento dos Alunos em Atividades de Modelagem Matemática. Boletim de Educação Matemática, v. 31, n. 57, p. 202-219, abr., 2017.ALMEIDA, L. M. W.; SILVA, K. A. P.; VERONEZ, M. R. D. Sobre a geração e interpretação de signos em atividades de modelagem matemática. In: VI SEMINÁRIO INTERNACIONAL DE PESQUISA EM EDUCAÇÃO MATEMÁTICA - VI SIPEM, 2015, Pirenópolis. Anais do VI SIPEM. Rio de Janeiro: SBEM, 2015. v. 1. p. 1-12.ÄRLEBÄCK, J.; DOERR, H. Moving beyond a single modelling activity. In: Mathematical Modelling in Education Research and Practice. Springer International Publishing, p. 293-303, 2015.ÄRLEBÄCK, J.; DOERR, H. Students’ interpretations and reasoning about phenomena with negative rates of change throughout a model development sequence. ZDM, v. 50, n. 1-2, p. 187-200, 2018.BOGDAN, R. C.; BIKLEN, S. K. Qualitative research for education: An introduction to theories and methods. New York: Pearson Education, 2003.CARREIRA, S.; BAIOA, A. M. Mathematical modelling with hands-on experimental tasks: On the student’s sense of credibility. ZDM, v. 50, n. 1-2, p. 201-215, 2018.DRIGO, M. O. Comunicação e cognição: semiose na mente humana. In: Comunicação e cognição: semiose na mente humana. Sulinas, 2007.LESH, R.; CRAMER, K.; DOERR, H.; POST, T.; ZAWOJEWSKI, J. Model Development Sequences. In: Richard Lesh & Helen Doerr, (Eds.), Beyond constructivism: Models and modeling perspectives on mathematics problem solving, learning, and teaching. Mahwah: Erlbaum, 2003.NÖTH, W. Panorama da Semiótica: de Platão a Peirce. São Paulo: Annablume, 2008.PEIRCE, C. S. Semiótica e filosofia. Editora Cultrix, 1972.PEIRCE, C. S. Semiótica. 3. ed. São Paulo: Perspectiva, 2015.SANTAELLA, L. Semiótica aplicada. São Paulo: Thomson Learning, 2012.e3504064
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TAO, XUE-QIN, GUI-NING LU, HONG-LIN FEI, and KANG-QUN ZHOU. "ESTIMATION OF DISSOLVABILITY OF CHLORIC AND ALKYL BENZENE DERIVATIVES USING QUANTUM CHEMICAL DESCRIPTORS AND PARTIAL LEAST SQUARES." Journal of Theoretical and Computational Chemistry 07, no. 05 (October 2008): 989–99. http://dx.doi.org/10.1142/s0219633608004350.

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Quantitative structure–property relationship (QSPR) modeling is a powerful approach for predicting environmental behavior of organic pollutants with their structure descriptors. This study reports two optimal QSPR models for estimating water solubility ( log S W ) and n-octanol/water partition coefficient ( log K OW ) of chloric and alkyl benzene derivatives. Quantum chemical descriptors computed with density functional theory at B3LYP/6-31G(d) level and partial least squares (PLS) analysis with optimizing procedure were used for generating QSPR models for log S W and log K OW of chloric and alkyl benzene derivatives. The correlation coefficients of the optimal models for log S W and log K OW were 0.973 and 0.990, respectively. The results of internal cross-validation test and external validation test showed that both of the optimal models had high fitting precision and good predicting ability. The log S W and log K OW values predicted by the optimal models are very close to those observed. The PLS analysis indicated that chloric and alkyl benzene derivatives with larger electronic spatial extent and lower molecular total energy tend to be more hydrophobic and lipophilic, and smaller energy gap between the lowest unoccupied and the highest occupied molecular orbitals leads to larger dissolvability.
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LU, GUI-NING, XUE-QIN TAO, ZHI DANG, WEILIN HUANG, and ZHONG LI. "QUANTITATIVE STRUCTURE–PROPERTY RELATIONSHIPS ON DISSOLVABILITY OF PCDD/Fs USING QUANTUM CHEMICAL DESCRIPTORS AND PARTIAL LEAST SQUARES." Journal of Theoretical and Computational Chemistry 09, supp01 (January 2010): 9–22. http://dx.doi.org/10.1142/s0219633610005608.

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The environmental fate of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) has become a major issue in recent decades. Quantitative structure–property relationship (QSPR) modeling is a powerful approach for predicting the properties of environmental organic pollutants from their structure descriptors. In this study, QSPR models were established for estimating water solubility (- log S W ) and n-octanol/water partition coefficient ( log KOW) of PCDD/Fs. Quantum chemical descriptors computed with density functional theory at the B3LYP/6-31G(d) level and partial least squares (PLS) analysis with an optimizing procedure were used to generate QSPR models for - log S W and log K OW of PCDD/Fs. Optimized models with high correlation coefficients (R2 > 0.983) were obtained for estimating - log S W and log K OW of PCDD/Fs. Both the internal cross validation test [Formula: see text] and external validation test (R2 > 0.965) results showed that the obtained models had high-precision and good prediction capability. The - log S W } and log K OW values predicted by the obtained models are very close to those observed. The PLS analysis indicated that PCDD/Fs with larger electronic spatial extent (R e ), lower molecular total energy (E T ), and smaller energy gap between the lowest unoccupied and the highest occupied molecular orbitals (E LUMO -E HOMO ) tend to be less soluble in water but more lipophilic.
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Kaveh, M., and R. Amiri Chayjan. "Modeling Drying Characteristics of Terebinth Fruit Under Infrared Fluidized Bed Condition." Cercetari Agronomice in Moldova 47, no. 4 (January 31, 2015): 5–21. http://dx.doi.org/10.1515/cerce-2015-0001.

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Abstract Advantages of infrared fluid bed drying include high heat and mass transfer coefficients, short process time, high quality and low energy consumption. Since heat and mass transfer and quality changes during drying of terebinth fruit with infrared fluid bed method is not described in the literature. Goals of this research were study the effects of different infrared drying conditions on the drying kinetic and physical parameters of terebinth fruit. To predict moisture during drying process, five mathematical models were used. Experiments were conducted at different levels of hot air velocity (0.93, 1.76 and 2.6 m/s), temperature (40, 55, and 70°C) and infrared radiation power (500, 1000 and 1500 W). Results showed that Demir et al. model had the best performance for predicting of moisture ratio. Effective moisture diffusivity for terebinth samples (6.2×10-11 to 7.3×10-10 m2/s) was achieved. Activation energy of the samples (44.4 to 59.13 kJ/mol) was computed. Maximum rupture force (118.4 N) was calculated at air velocity of 2.6 m/s, infrared power of 1500 W and air temperature of 70°C. The results proved that in addition to short process time, monitoring of terebinth fruit characteristics such as mechanical properties during drying process can be achieved.
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Zheng, Wei, Hong Li, Jun-Qing Xia, You-Ping Wan, Si-Yu Li, and Mingzhe Li. "Constraints on cosmological models from Hubble parameters measurements." International Journal of Modern Physics D 23, no. 05 (April 30, 2014): 1450051. http://dx.doi.org/10.1142/s0218271814500515.

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In this paper, we study the cosmological constraints from the measurements of Hubble parameters — H(z) data. Here, we consider two kinds of H(z) data: the direct H0 probe from the Hubble Space Telescope (HST) observations of Cepheid variables with H0 = 73.8 ± 2.4 km s-1 Mpc-1 and several measurements on the Hubble parameter at high redshifts H(z). Employing Markov Chain Monte Carlo (MCMC) method, we also combine the WMAP nine-year data (WMAP9), the baryon acoustic oscillations (BAO) and type Ia supernovae (SNIa) Union2.1 compilation to determine the cosmological parameters, such as the equation of state (EoS) of dark energy w, the curvature of the universe Ωk, the total neutrino mass ∑mν, the effective number of neutrinos N eff and the parameters associated with the power spectrum of primordial fluctuations. These H(z) data provide extra information on the accelerate rate of our universe at high redshifts. Therefore, adding these H(z) data significantly improves the constraints on cosmological parameters, such as the number of relativistic species. Moreover, we find that direct prior on H0 from HST can also give good constraints on some parameters, due to the degeneracies between these parameters and H0.
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Estrella, Soledad, and Patricia Estrella. "Representaciones de datos en estadística: de listas a tablas." Revista Chilena de Educación Matemática 12, no. 1 (April 20, 2020): 21–34. http://dx.doi.org/10.46219/rechiem.v12i1.20.

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Con el propósito de estudiar la organización de datos e identificar la diversidad de representaciones construidas en situación de exploración de datos auténticos, en un grupo de 56 estudiantes chilenos de tercer grado de primaria, se diseñó e implementó un plan de clases de estadística, en el que se solicitó a los estudiantes ordenar y organizar los datos para responder a un problema. Este artículo se centra en el estudio cualitativo de las representaciones de datos producidas por los estudiantes durante la implementación del plan de clases. La exploración de los datos realizada por los estudiantes sobre los alimentos que consumían en la escuela (“colaciones”), los llevó a elaborar representaciones de datos (listas, estado intermedio de esquema tabular y tabla de frecuencias). Se concluye que el contexto auténtico y la construcción de representaciones propias promovieron que los estudiantes construyeran preponderantemente listas (77%), aplicando con sentido la partición, la clase y el cardinal. Se sugiere incorporar explícitamente en la enseñanza el formato lista, como herramienta representacional y unidad básica de la tabla. Referencias Brizuela, B., y Alvarado, M. (2010). First graders' work on additive problems with the use of different notational tools. Revista IRICE, 21, 37-43. Recuperado a partir desde https://ojs.rosario-conicet.gov.ar/index.php/revistairice/article/view/v21n21a04 Brizuela, B., y Lara-Roth, S. (2002). Additive relations and function tables. Journal of Mathematical Behavior, 20(3), 309-319. https://doi.org/10.1016/S0732-3123(02)00076-7 Coutanson, B. (2010). La question de l’éducation statistique et de la formation de l’esprit statistique à l’école primaire en France. Étude exploratoire de quelques caractéristiques de situations inductrices d’un enseignement de la statistique au cycle III (Tesis doctoral). Université de Lyon, Francia. Recuperado desde https://tel.archives-ouvertes.fr/tel-00494338/ Dibble, E. (1997). The Interpretation of Tables and Graphs. Seattle, WA: University of Washington. Duval, R. (2003). Comment Analyser le Fonctionnement Representationnel des Tableaux et leur Diversite? Spirale -Revue de Recherches en Éducation-, 32, 7-31. Recuperado desde http://spirale-edu-revue.fr/IMG/pdf/1_Duval_Spi32F.pdf Estrella, S. (2014). El formato tabular: una revisión de literatura. Revista Actualidades Investigativas en Educación, 14(2), 1-23. Estrella, S., e Isoda, M. (2020). Suma Primero: manual del docente, 1° básico. Valparaíso: Ediciones Universitarias de Valparaíso. Estrella, S., Mena-Lorca, A., y Olfos, R. (2017). Naturaleza del objeto matemático “Tabla”. Magis: Revista Internacional de Investigación en Educación, 10(20), 105-122. https://doi.org/10.15517/aie.v14i2.14817 Estrella, S., Olfos, R., Morales, S., y Vidal-Szabó, P. (2017). Argumentaciones de estudiantes de primaria sobre representaciones externas de datos: componentes lógicas, numéricas y geométricas. Revista Latinoamericana de Investigación en Matemática Educativa, 20(3), 345-370. https://doi.org/10.12802/relime.17.2034 Estrella, S., Olfos, R., Vidal-Szabó, P., Morales, S., y Estrella, P. (2018). Competencia meta-representacional en los primeros grados: representaciones externas de datos y sus componentes. Revista Enseñanza de las Ciencias, 36(2), 143-163. https://doi.org/10.5565/rev/ensciencias.2143 Estrella, S., Zakaryan, D., Olfos, R., y Espinoza, G. (2020). How teachers learn to maintain the cognitive demand of tasks through Lesson Study. Journal of Mathematics Teacher Education, https://doi.org/10.1007/s10857-018-09423-y Friel, S. N., Curcio, F. R., y Bright, G. W. (2001). Making sense of graphs: Critical factors influencing comprehension and instructional implications. Journal for Research in Mathematics Education, 124-158. https://psycnet.apa.org/doi/10.2307/749671 Gabucio, F., Martí, E., Enfedaque, J., Gilabert, S., y Konstantinidou, A. (2010). Niveles de comprensión de las tablas en estudiantes de primaria y secundaria. Cultura y Educación, 22(2), 183-197. https://doi.org/10.1174/113564010791304528 Kaufman, E. L., Lord, M. W., Reese, T. W., y Volkmann, J. (1949). The discrimination of visual number. The American journal of psychology, 62(4), 498-525. Lehrer, R., y Schauble, L. (2000). Inventing data structures for representational purposes: Elementary grade students' classification models. Mathematical Thinking and Learning, 2(1-2), 51-74. https://psycnet.apa.org/doi/10.1207/S15327833MTL0202_3 Martí, E. (2009). Tables as cognitive tools in primary education. En C. Andersen, N. Scheuer, M. Pérez Echeverría, y E.V. Teubal (Coord.), Representational systems and practices as learning tools (pp. 133-148). Rotterdam: Sense Publishers. Martí, E., García-Mila, M., Gabucio, F., y Konstantinidou, K. (2010). The construction of a double-entry table: a study of primary and secondary school students’ difficulties. European Journal of Psychology of Education, 26(2), 215-234. www.jstor.org/stable/23883606 Martí, E., Pérez, E., y De la Cerda, C. (2010). Alfabetización gráfica. La apropiación de las tablas como instrumentos cognitivos. Contextos, 10, 65-78. Martínez, M., y Brizuela, B. (2006). A third grader’s way of thinking about linear function tables. Journal of Mathematical Behavior, 25, 285-298. https://doi.org/10.1016/j.jmathb.2006.11.003 Ministerio de Educación de Chile. (2018). Bases Curriculares Primero a Sexto Básico. Santiago de Chile: Unidad de Currículum y Evaluación, Ministerio de Educación de Chile. Recuperado desde https://www.curriculumnacional.cl/614/articles-22394_bases.pdf Moore, D. S., y Cobb, G. W. (2000). Statistics and mathematics: Tension and cooperation. The American Mathematical Monthly, 107(7), 615-630. Nisbet, S., Jones, G., Thornton, C., Langrall, C., y Mooney, E. (2003). Children’s Representation and Organisation of Data. Mathematics Education Research Journal, 15(1), 42-58. https://doi.org/10.1007/BF03217368 Pérez-Echeverría, M., y Scheuer, N. (2009). External Representations as Learning Tools: An Introduction. En C. Andersen, N. Scheuer, M. Pérez-Echeverría, y E. Teubal (Eds.), Representational systems and practices as learning tools (pp. 1-17). Rotterdam: Sense Publishers. Pfannkuch, M., y Rubick, A. (2002). An exploration of students’ statistical thinking with given data. Statistics Education Research Journal, 1(2), 4-21. https://iase-web.org/documents/SERJ/SERJ1(2).pdf Sepúlveda, A., Díaz-Levicoy, D., y Jara, D. (2018). Evaluación de la comprensión sobre Tablas Estadísticas en estudiantes de Educación Primaria. Bolema: Boletim de Educação Matemática, 32(62), 869-886. http://dx.doi.org/10.1590/1980-4415v32n62a06 Tukey, J. (1977). Exploratory data analysis. Reading, MA: Addison-Wesley. Wu, H., y Krajcik, J. (2006). Inscriptional Practices in Two Inquiry-Based Classrooms: A Case Study of Seventh Graders’ Use of Data Tables and Graphs. Journal of Research in Science Teaching, 43(1), 63-95. https://doi.org/10.1002/tea.20092 Financiamiento: Esta investigación se ha realizado dentro del proyecto subvencionado por Agencia Nacional de Investigación y Desarrollo (ANID) / FONDECYT 1200346 y Proyecto VRIE-PUCV 039.439/2020
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Yan, H., and G. V. Barbosa-Cánovas. "Compression characteristics of agglomerated food powders: Effect of agglomerate size and water activity Características de la compresión de alimentos en polvo: Efecto del tamaño del aglomerado y del contenido de humedad." Food Science and Technology International 3, no. 5 (October 1997): 351–59. http://dx.doi.org/10.1177/108201329700300506.

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The stability of food agglomerates is very important for keeping optimal instant properties as well as flow characteristics. Compression tests have been proven not only to be useful tools in char acterizing attrition, but also excellent descriptors for powder flowability. The purpose of this work was to study the effects of particle size and water activity ( a w) on the compression characteristics of selected agglomerated food powders, and then to identify suitable mathematical models by using a non-linear regression program for predicting the compression characteristics of food agglomerates when partial attrition takes place. Three agglomerated food powders - non-fat milk, low fat milk and instant coffee - were classified by size into five or six fractions with a set of RX-29 sieve screens. Each fraction was conditioned at three aw levels, placed in a cylindrical compression cell, and compressed with a piston attached to the crosshead of a TA-XT2 texture analyser. The crosshead speed was 1 mm/s in all tests and the maximum force applied was 245 N. Particle size was found to play a significant role in compression tests in that the greater the particle size, the greater the volume reduction. It was easier to compress the low aw samples, but in all tests changing aw did not significantly affect compression characteristics. Sone's two- parameter model accurately described the combination of compaction and attrition when compres sion pressure did not exceed a certain level, while Peleg's double-exponential model with four parameters best fitted the compression data.
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Yusniawati, Virda, and Ari Prasetyo. "PENGARUH E-WOM DAN BRAND IMAGE TERHADAP ONLINE PURCHASE INTENTION FASHION MUSLIM PADA MILENIAL SURABAYA." Jurnal Ekonomi Syariah Teori dan Terapan 9, no. 1 (January 30, 2022): 131. http://dx.doi.org/10.20473/vol9iss20221pp131-139.

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ABSTRAKTujuan penelitian ini dilakukan guna menguji pengaruh e-WOM dan brand image terhadap online purchase intention fashion muslim secara parsial dan simultan. Populasi dalam penelitian ini adalah milenial muslim di Kota Surabaya yang tidak pernah belanja fashion muslim secara online. Sampel yang diambil dengan teknik nonprobability sampling serta metode purposive sampling. Pengumpulan data dalam penelitian ini menggunakan data primer dengan menyebarkan kuesioner secara online. Dalam penelitian ini menggunakan sampel yang sesuai dengan kriteria penelitian sebanyak 70 responden. Penelitian ini menggunakan teknik analisis dengan uji deskriptif, uji instrumen, uji asumsi klasik, uji model dan uji hipotesis. Dalam melakukan pengujian tersebut dalam mengolah datanya penelitian ini menggunakan SPSS versi 26. Setelah dilakukan pengujian terhadap variabel-variabel yang diteliti maka hasil yang didapatkan adalah (1) e-WOM dan brand image secara parsial berpengaruh signifikan terhadap online purchase intention. (2) Variabel e-WOM lebih dominan terhadap online purchase intention. (3) e-WOM dan brand image secara simultan berpengaruh terhadap online purchase intention.Kata Kunci: E-WOM, Brand image, Online Purchase Intention, Fashion Muslim. ABSTRACTThe purpose of this study was conducted to test the influence of e-WOM and brand image on online purchase intention fashion Muslim partially and simultaneously. The population in this study is Muslim millennials in Surabaya who have never shopped for Muslim fashion online. Samples taken with nonprobability sampling techniques as well as purposive sampling methods. The data collection in this study used primary data by disseminating questionnaires online. In this study, we used samples that matched the research criteria of 70 respondents. This study uses analytical techniques with descriptive tests, instrument tests, classic assumption tests, model tests and hypothesis tests. In conducting such tests in processing the data this research uses SPSS version 26. After testing the variables studied, the results obtained are (1) e-WOM and brand image partially affects online purchase intention. (2) e-WOM variables are more dominant against online purchase intention. (3) e-WOM and brand image simultaneously affect online purchase intention.Keywords: E-WOM, Brand image, Online Purchase Intention, Muslim Fashion. DAFTAR PUSTAKAAgatha, C., Tumbel, A., & Soepeno, D. (2019). Pengaruh brand image dan electronic word of mouth terhadap minat beli konsumen oriflame di Manado. Jurnal EMBA: Jurnal Riset Ekonomi, Manajemen, Bisnis dan Akuntansi, 7(1), 131-140. https://doi.org/10.35794/emba.v7i1.22291APJII. (2018). Laporan survey penetrasi dan profil perilaku pengguna internet Indonesia. Jakarta: Asosiasi Penyelenggara Jasa Internet Indonesia.______. (2017). Infografis penetrasi & perilaku pengguna internet Indonesia 2017. Jakarta: Asosiasi Penyelenggara Jasa Internet Indonesia.Bambauer-Sachse, S., & Mangold, S. (2011). Brand equity dilution through negative online word-of-mouth communication. Journal of retailing and consumer services, 18(1), 38-45. https://doi.org/10.1016/j.jretconser.2010.09.003Day, G. S. (1976). A two-dimensional concept of brand loyalty. In Mathematical models in marketing (pp. 89-89). Heidelberg, Berlin: Springer.Huda, N., Hudori, K., Fahlevi, R., Mazaya, D., & Sugiarti, D. (2017). Pemasaran syariah: Teori & aplikasi. Jakarta: Kencana.Jalilvand, M. R., & Samiei, N. (2012). The effect of electronic word of mouth on brand image and purchase intention: An empirical study in the automobile industry in Iran. Marketing Intelligence & Planning, 30(4), 460-476. https://doi.org/10.1108/02634501211231946Salisbury, W. D., Pearson, R. A., Pearson, A. W., & Miller, D. W. (2001). Perceived security and World Wide Web purchase intention. Industrial Management & Data Systems, 101(4), 165-177. https://doi.org/10.1108/02635570110390071Schiffman, L. G., & Kanuk, L. L. (2000). Consumer behavior. New Jersey: Prenhallindo.Wibowo, A. (2015). Pengaruh elektronik word of mouth dan brand image terhadap purchase intention pada konsumen smartphone samsung yang berbasis android. Jurnal Ilmu Manajemen, 12(1), 71-88. http://dx.doi.org/10.21831/jim.v12i1.11743
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Books on the topic "And N S W ) Mathematical models"

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Mazgaj, Witold. Wyznaczanie rozkładu pola magnetycznego w materiałach magnetycznie miękkich z uwzględnieniem histerezy i anizotropii: Calculation of magnetic field distribution in soft magnetic materials taking into account hysteresis and anisotropy = [Raschet raspredelenii︠a︡ magnitnogo poli︠a︡ v magnitno-mi︠a︡gkikh materialakh s uchetom gisterezisa i anizotropii]. Kraków: Wydawnictwo PK, 2010.

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(Editor), Roberto Moreno-Díaz, ed. Brain Processes, Theories, and Models: An International Conference in Honor of W. S. McCulloch 25 Years After His Death. The MIT Press, 1995.

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Cappuccio, Massimiliano L., ed. Handbook of Embodied Cognition and Sport Psychology. The MIT Press, 2019. http://dx.doi.org/10.7551/mitpress/10764.001.0001.

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The first systematic collaboration between cognitive scientists and sports psychologists considers the mind–body relationship from the perspective of athletic skill and sports practice. This landmark work is the first systematic collaboration between cognitive scientists and sports psychologists that considers the mind–body relationship from the perspective of athletic skill and sports practice. With twenty-six chapters by leading researchers, the book connects and integrates findings from fields that range from philosophy of mind to sociology of sports. The chapters show not only that sports can tell scientists how the human mind works but also that the scientific study of the human mind can help athletes succeed. Sports psychology research has always focused on the themes, notions, and models of embodied cognition; embodied cognition, in turn, has found striking confirmation of its theoretical claims in the psychological accounts of sports performance and athletic skill. Athletic skill is a legitimate form of intelligence, involving cognitive faculties no less sophisticated and complex than those required by mathematical problem solving. After presenting the key concepts necessary for applying embodied cognition to sports psychology, the book discusses skill disruption (the tendency to “choke” under pressure); sensorimotor skill acquisition and how training correlates to the development of cognitive faculties; the intersubjective and social dimension of sports skills, seen in team sports; sports practice in cultural and societal contexts; the notion of “affordance” and its significance for ecological psychology and embodied cognition theory; and the mind's predictive capabilities, which enable anticipation, creativity, improvisation, and imagination in sports performance. ContributorsAna Maria Abreu, Kenneth Aggerholm, Salvatore Maria Aglioti, Jesús Ilundáin-Agurruza, Duarte Araújo, Jürgen Beckmann, Kath Bicknell, Geoffrey P. Bingham, Jens E. Birch, Gunnar Breivik, Noel E. Brick, Massimiliano L. Cappuccio, Thomas H. Carr, Alberto Cei, Anthony Chemero, Wayne Christensen, Lincoln J. Colling, Cassie Comley, Keith Davids, Matt Dicks, Caren Diehl, Karl Erickson, Anna Esposito, Pedro Tiago Esteves, Mirko Farina, Giolo Fele, Denis Francesconi, Shaun Gallagher, Gowrishankar Ganesh, Raúl Sánchez-García, Rob Gray, Denise M. Hill, Daniel D. Hutto, Tsuyoshi Ikegami, Geir Jordet, Adam Kiefer, Michael Kirchhoff, Kevin Krein, Kenneth Liberman, Tadhg E. MacIntyre, Nelson Mauro Maldonato, David L. Mann, Richard S. W. Masters, Patrick McGivern, Doris McIlwain, Michele Merritt, Christopher Mesagno, Vegard Fusche Moe, Barbara Gail Montero, Aidan P. Moran, David Moreau, Hiroki Nakamoto, Alberto Oliverio, David Papineau, Gert-Jan Pepping, Miriam Reiner, Ian Renshaw, Michael A. Riley, Zuzanna Rucinska, Lawrence Shapiro, Paula Silva, Shannon Spaulding, John Sutton, Phillip D. Tomporowski, John Toner, Andrew D. Wilson, Audrey Yap, Qin Zhu, Christopher Madan
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Book chapters on the topic "And N S W ) Mathematical models"

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"tcoourpulnedexopceenasn iv -a etm en ossepmhbelrees . mIofdseol , s w to ecpo re u d ld ic tuslea rg th e e -l doiscst . i on Tsh , ebasskeid ll in seasonal rainfall and f scale indices such as the SOI, then use statistical generated the v o al nuethferoEmlN us iinnog -S ta ocu ti tchaelrnmaOnsrcoisltl at p io rne , ­ v re alra ia ti bolne ships between these forec agement. fic locat siowne . nAele te drn to at p iv reeldyi , ctw , esuccohuaasstraii ndices and the This study demonstrated that the skill obtainable in models to ld us nefatlhleatcaosuppelceid ­ A gr uosu tr nad li s a , th weaisrussueffiinc ie c n ro tptmo an ju asg ti efmy, enot. n Pr eecsounmoam bl iycp en re s d em ic b te lderpurnesdiocftasneaas tm ur o fa scpehetreimc peratures, then use these forecasts could also be useful in drought-dicti sea surface temperature msotdoelpfro ep rc aerdew pr it e h ­ mmiannaatg io enmeonftadpep ci rsoiporniam te aksitnogc , kifnogrirnas te ta sncoen in padse to te ra r l ­ tChoenbsoi ns edse of trsatbrlera ate tihno fa gy ulglhatnadndotthee st rinvga riables of interest. properties (McKeon et al. 1990). prediction. for using models iisnnseeead so endaltoc li s m el aetcet." In Droughts, 78. Routledge, 2016. http://dx.doi.org/10.4324/9781315830896-55.

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"T cu im rre e n tl Sycahleeasd ) qu aas rte wreeldlaatst he thLeammounltt -i D na oth io e n rt aylEIaR rt I h , odtrhoeurgm ht ajporrem di ocd ti eolnprw ob il llem re s q . u T ir hee the resolution of hOabvseearnva im to p ry o rt oafntCcooluupm le bdiamoUdneilvecrosm ity p . onTehnet, sea lt ehfo fo urgthsp ex hteernes , io onntaogfloorbeaclasdto in mga , in boatnhdth th eseeaorcee dva saonlnacn es diantcm lu odse ­ m in acn lu ydeodf ( t C he a rs toyn pe 1s9o 98 f ) m . ethods discussed above are uomciesamnatacnhdbaettmwoesepnhtehree . fl Fuo xe rsmaatntyhearbeoaus, n d th atr io ie nsoofftthhee rep F li o ca rtE in NgSaOn , d c , ur in re nstom co eupclaesdesm , oidmep ls roav re in cgapoanb le thoefo of frtehaelsie st iwcillalnrde -q suuirrfeacse ig coupling may be ess eenatd ia dli . tiA on ll tshue cc ecsusrroefnetmgpein ri ecraalt / isotn at i o st ficcaolumpe le th dom ds o . dFeo ls rirnesptlain ca ctee , a model parameterisatio nificant improvements in the SST anomaly patterns in the equatorial Pacific that th ry elraeyqeu rs ir , ecd lo m ud osd , erlad im inasp ti oonf , saun rf dacceonpv ro ecce ti sosn es, bound­ have many characteristics in common with observed to a quick solution, but, ro g v iv eemnetnhtesiam re p o li rktealny . N to onye ie o ld flEeN ss SsO uc cceosm sf puolsiin te tsh . eCm ur orreentdim ffi ocduelltspa ro re blceomnso id ferreapblliy ­ imp Iatcsthoofud ld ronuogthbte , they are worth pursuing. ce of the p ca hteirnigcc th ir ecuslpae ti c o if n ic peav tt oelruntsioinnoafgtihve en SESNTSaOndepaitsm od oes . ­ tehxe prospects for im forgotten, however, that not all of However, it is precisely this problem that must be no ctlufsuilv ly eluynodnersse ta a n so pnraolvteidmde ro sc uag le hst . p A re l dictions reside solved. Just as the ‘average’ daily weather is rarely of climate variabilit d y , th th eem re u l is ti aanmnpulaelteo th doeucgahdawles ca dloeo ce bpsteuravleda , idthteo ‘ ucnadneornsitcaanl’ diEnNgS th Oan id aeauissefm ul orceonastcroun ct ­ e2x .1 is c t ) e nc aend -e th .g e . , sien the time series o vidence for its for prediction. To reach their full potential, coupled distributions of rai cnuflaalrl ( cFhiagnugrees2i . n2ftrhae in f p al rlob (F ab ig il uir ty eim nd oidveildsun al eepdas to t E be N S ab O le etpoisroedpe li scaa te ndt he th eeivroleuv ti ooln vi nogfnoefw co duep velopments in data an ). Very recently, extratropical atmospheric and ocean interactions. There is lesdommeoedveildsehnacveeosftd ar etaeld ys t is oaonpdeinn the accuracy The most optimistic expectation is that once that may have a somewhat c ad d a if lfv er aern ia t t io unpstihnisEN fie S ld O . cEoNuSpO le , d th m ey odw el i s ll bheavaeb le cotnoqhueelrped id etnhtei fy chaanld le npg re edio ct ftmheeasiun red by the ocean s character, as other modes of climate variability. This may include Zhang te ertananl. ua1l99 ti 7 m , eFoslc la al neusr fa ( cKeleteemmapne ra et tures, from links between ENSO and the climate system not yet are now beginning to fin ddeatanlu . m1b9e9r8 ) o . M al. od1e9 ll 9e6 rs , m dis ocdoevlesremdaiyntahiediimnpienrv fe ecsttiogbaste io rv nast io onfaplodsastiab . lIemcplriomvaetdem ab e il cih ty anoin sm th seinde th ca edN al otrothmaun lt d i tropic f potential modes that link ocean basins, such as ENSO-and Barnett 1996). There is adlescoad ev aalltiPm ac eifsiccaf le o r ( vari­ related variations of SST in the tropical North Atlantic, ENSO links to rainfall may come an id dengcoed th ep aetnsLoam ti e f rece In n tl aydddiistc io u n ss etdoboycE ea n n fi -e altdmaonsdphMea re y er c o ( u1p9l9 in 7 g ). , new nointutdheeo se fcE ul N ar S O va riitas bility in the str ding generations of models need to include realistic land-southern Europe (R eolpfe -le wes .g k . i , a in ndneonrg Ha th th lp e e rn an dAfm ri acga/ ­ rae tm ali oss ti pchm er oedeclosuopflitnhge . la Snudch su rifm ac peroavnedmie ts ntvsegientvao ti lovneaThheeadp , r m ed aiyctaalbsio lity of ENS rt 1987). and adequate descriptions based on observed data of in Northern Hevm ar iyspohnerdeecOa sp d , rail on ntgiem ( e to s Ba c a ls a a le fse , w e sp se eacs ia oln ly strheep re isne it nitaal tio ve nge in ta t m io ondesltsa te is . c W ur orrekn tl oynbleainndg -s m ur afiancleym 19 e9a5n ) s . (i I . n e ., additio meda et al. driven by the development of coupled models for over several cdheacnagdenes , sis ) n ec a th u lso e la r ‘ itvnyfpairciaalbio li rty in the climate climate change projection over the next century conditional ENSO probability l u fo ernecceassetsxsi . m pe Fpcolteeds ’ e values (Dickinson et al. 1996). the Gulf Coast of the United States shows reaxaam sonal Significant advances in coupled model-based ENSO signal for both the first and second half s o tro p n le, f th g e." In Droughts, 65. Routledge, 2016. http://dx.doi.org/10.4324/9781315830896-45.

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"tamh tm iedor sphere -1 el 9a8 ti 0vse , lyc li s m im a p te le models. Much more detailed than in the Australian region (Simpson and Downey 1975; run. Rather they are models than simp allysofomuuscehdm ro ourte in eelxypesn in si cvee th to e V ha osicbe ee anndfoH rc uendt 198 recasting El Nino behav­ tures for the p w er iitohd4o ). bsT1eh rv e BMRC climate model iour (e.g., sea surface temperatures in the east simulated by the model ha 9s49e -d 9 1 se , aasnud rf ac th eet em ra p in efraal ­ lfeoqrueactaosrti al r Pacific), they could, in theory, be used to ob been compared with the coupling o ai fnftahleloacnedantetmoptehrea tu artemoosvpehre re la nidn . th Tehseew te asse rv ru end ra fiinvfea ll t i ( m Fr eesd , er w ik istehne th teal. s1a9m9e5 ). seTahesm ur o fa dceelmmo od deellss , ( hPoowweevrere , tis less than perfect. Improved ocean ph m er p ic e ra ctoun re d s it io bnust . s T li h ghtly different starting atmos­ these coupled mode alls . . 1995) are being developed for ialg lu rseterm ate esnttw he it h ‘ noobisseer ’ veind iffe ed rtahier ence betw nfa m ll, o w de e l . neTeoenge th t e ed to av mru uns O era cghep se aarsto ne pro onfalthperebd le ic m ti own it ihstthheeduisfef ic oufltcy oupled models in all five runs as an ‘ens coupled models has in sitmhue la attim ng osrp ai hnefrailclA of u st p ra rleicainpp it raetc io ip n i tat sihoon, w em abtls le’. eoam st e The en o ve srkin ll sem o rt ihne bl sei ave rn Amuusl rag t a ra ti lnegsgoennte he ia. (Ni ra l sp su a c ti caelsssca in le ssiimmuploartt in an gtaftomrousspeh rs e , ridcesvpairtieab th il e it iyr Fur T th h e es resoau tm th o , stphheem ri odels are less successful. sea cshuo rf l a ls ce1t9e9m6p ) e . ra M tu ordeealneoxmpaelriiemsehnatvsewailtohngspheicsitfo ie ry djtohb er e o fo f re si m pr uolbaa ti bnlgyc th cemSoOdIel ( eFx ig pe urrieme3n .3 ts ) . do ThaegSoO od I an be predicted without the need." In Droughts, 77. Routledge, 2016. http://dx.doi.org/10.4324/9781315830896-54.

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Conference papers on the topic "And N S W ) Mathematical models"

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Shulman, Ami, and Jorge Soto-Andrade. "A random walk in stochastic dance." In LINK 2021. Tuwhera Open Access, 2021. http://dx.doi.org/10.24135/link2021.v2i1.71.

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Stochastic music, developed last century by Xenakis, has older avatars, like Mozart, who showed how to compose minuets by tossing dice, in a similar way that contemporary choreographer Cunningham took apart the structural elements of what was considered to be a cohesive choreographic work (including movement, sound, light, set and costume) and reconstructed them in random ways. We intend to explore an enactive and experiential analogue of stochastic music, in the realm of dance, where the poetry of a choreographic spatial/floor pattern is elicited by a mathematical stochastic process, to wit a random walk – a stochastic dance of sorts. Among many possible random walks, we consider two simple examples, embodied in the following scenarios, proposed to the students/dancers: - a frog, jumping randomly on a row of stones, choosing right and left as if tossing a coin, - a person walking randomly on a square grid, starting a given node, and choosing each time randomly, equally likely N, S, E or W, and walking non-stop along the corresponding edge, up to the next node, and so on.When the dancers encounter these situations, quite natural questions arise for the choreographer, like: Where will the walker/dancer be after a while? Several ideas for a choreography emerge, which are more complex than just having one or more dancers perform the random walk, and which surprisingly turn our random process into a deterministic one!For instance, for the first random walk, 16 dancers start at the same node of a discrete line on the stage, and execute, each one, a different path of the 16 possible 4 – jump paths the frog can follow. They would need to agree first on how to carry this out. Interestingly, they may proceed without a Magister Ludi handing out scripts to every dancer. After arriving to their end node/position, they could try to retrace their steps, to come back all to the starting node.Analogously for the grid random walk, where we may have now 16 dancers enacting the 16 possible 2-edge paths of the walker. The dancers could also enter the stage (the grid or some other geometric pattern to walk around), one by one, sequentially, describing different random paths, or deterministic intertwined paths, in the spirit of Beckett’s Quadrat. Also, the dancers could choose their direction ad libitum, after some spinning, each time, on a grid-free stage, but keeping the same step length, as in statistician Pearson’s model for a mosquito random flight.We are interested in various possible spin-offs of these choreographies, which intertwine dance and mathematical cognition: For instance, when the dancers choose each one a different path, they will notice that their final distribution on the nodes is uneven (interesting shapes emerge). In this way, just by moving, choreographer and dancers can find a quantitative answer to the impossible question: where will the walker/dancer be after a while? Indeed, the percentage of dancers ending up at each node gives the probability of the random walker landing there.
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Zhang, Shengbiao, Zhandong Wang, Yan Yan, Guifang Sun, and Zhonghua Ni. "Numerical Simulation and Innovative Structure of Drainage Cover." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-77197.

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A fluid simulation was conducted on the flow states of water and drainage gas from the drainage cover in underwater local dry laser welding. The results of the simulation of gas volume fraction are obtained. Drainage cover was developed based on the drainage cover model. Experiments of drainage in this machined drainage cover was carried out, and were compared with the numerical simulation. The results show high similarity, which verifies the feasibility. Then, innovative structure featuring an uneven buffer around the exit of drainage cover are proposed to improve the performance of drainage. A group of 3D models of fluid domain related to differently characterized drainage covers was designed and the flow states were simulated. They are N-model with a narrow outlet, S-model with a smooth buffer added additionally based on N-model, U-model with an uneven buffer compared with S-model, and W-model with a wide outlet and the diameter of outlet twice than N-model. The gas volume fracture distributions were recorded and in comparison with each other. The results indicate that U-model with the uneven buffer realized the deepest drainage depth.
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Xiao, Bing, Alejandro J. Rivas-Guerra, and Marc P. Mignolet. "Maximum Amplification of Blade Response Due to Mistuning in Multi-Degree-of-Freedom Blade Models." In ASME Turbo Expo 2004: Power for Land, Sea, and Air. ASMEDC, 2004. http://dx.doi.org/10.1115/gt2004-54030.

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This paper focuses on the determination and study of the maximum amplification of the steady state forced response of bladed disks due to mistuning. A general multi-degree-of-freedom dynamic model is adopted for each blade/disk sector and optimization techniques are used to maximize a weighted quadratic norm of the response of the degrees-of-freedom of blade 1 (overall response of blade 1). First, a mathematical optimization effort is conducted in which the resonant mistuned mode shape(s) (1 for engine orders 0 and N/2 where N is the number of blades, 2 otherwise) is selected to maximize the overall response of blade 1. The form of these optimum mode shapes is derived for all weighting matrices. The specific mode shapes are also derived for two particular weights the first one of which depends on the tuned bladed disk mass matrix and for which the overall response is akin to the kinetic energy. A closed form solution is also derived when the analysis focuses solely on the response of a specific degree-of-freedom or a specific stress component. In these cases, the ratio of the corresponding overall response to its tuned counterpart, i.e. the amplification factor, is found to be the product of two terms. The first one is an amplification obtained by tuned variations of the blade properties/mode shapes and thus is referred to as the modal amplification factor. The second term is an amplification obtained by proper mistuning. Interestingly, the modal amplification factor may take on very large values while a representative value of the largest mistuned factor is often the Whitehead limit of (1+N)/2 as in the single-degree-of-freedom per blade model. The above formulation and results are readily extended to the optimization of the blade alone response (as opposed to blade and disk sector). Numerical optimization efforts were also undertaken on both a two-degree-of-freedom per blade disk model and a 24-blade blisk reduced order model. The results of these computational efforts not only confirm the assumptions and findings of the theoretical developments but also demonstrate that substantially larger amplification factors can be obtained with a general natural frequency mistuning as opposed to Young’s modulus mistuning. Finally, an amplification due to mistuning (no tuned amplification) slightly larger than the Whitehead limit was obtained with relative variations in blade alone frequencies less than 0.5%.
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Яшин, Б. Л. "Mathematical ideas in Russian philosophy of the XIX–XX centuries." In Современное социально-гуманитарное образование: векторы развития в год науки и технологий: материалы VI международной конференции (г. Москва, МПГУ, 22–23 апреля 2021 г.). Crossref, 2021. http://dx.doi.org/10.37492/etno.2021.79.38.059.

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среди представителей русской философии XIX–XX вв. было немало тех, кто пытался выявить характер взаимосвязи в процессе познания мира философии и математики. М.С. Аксенов создал метагеометрическую концепцию пространственно-временной модели мироздания, где утверждал, что воспринимаемые человеком объекты как трехмерные на самом деле четырехмерны и существуют в четырехмерном пространстве в абсолютном покое. Идея иллюзорности движения, изменения, развития объективного мира была фундаментом в рассуждениях М.С. Аксенова. Человек, в его понимании, живет в неизменяющейся Вселенной, находясь в непрерывном движении во времени, воспринимаемом им не как свое собственное, а как изменения, происходящие с ней. Ярким представителем плеяды русских математиков-философов был и участник «Московской философско-математической школы» Н.В. Бугаев, разработавший оригинальное учение – аритмологию, которую вместе с математикой он считал специфической методологией, способной помочь в поиске ответов на сложные вопросы научно-философского понимания мира. Еще одной идеей Н.В. Бугаева, где проявилась связь математики и философии, была идея эволюционного развития природного, социального и духовного миров, воплощенная им в его монадологии. Философские работы М.С. Аксенова и Н.В. Бугаева, в которых они использовали математические модели для осмысления мироустройства, способствовали разработке и осознанию роли «философско-математического синтеза» как метода познания. Among the representatives of Russian philosophy of the XIX–XX centuries, there were many who tried to identify the nature of the relationship in the process of cognition of the world of philosophy and mathematics. One of them was M.S. Aksenov, who created the metageometric concept of the space-time model of the universe, where he argued that the objects perceived by man as three-dimensional are four-dimensional and exist in four-dimensional space in absolute rest. The idea of the illusory nature of movement, change, and the development of the objective world was the foundation of M.S. Aksenov's reasoning. Man, in his understanding, lives in an unchanging Universe, being in continuous motion in time, perceived by him not as his own, but as changes occurring with it. A prominent representative of Russian mathematicians and philosophers was also a member of the "Moscow Philosophical and Mathematical School" N.V. Bugaev, who developed an original teaching – arrhythmology, which, together with mathematics, he considered a specific methodology that could help in finding answers to complex questions of scientific and philosophical understanding of the world. Another idea of N.V. Bugaev, where the connection between mathematics and philosophy was manifested, was the idea of the evolutionary development of the natural, social, and spiritual worlds, embodied by him in his monadology. The philosophical works of M. S. Aksenov and N. V. Bugaev, in which they used mathematical models to understand the world order, contributed to the development and awareness of the role of "philosophical and mathematical synthesis" as a method of cognition.
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Meyer, Laura J., and Leslie M. Phinney. "Optimization Study of a Silicon-Carbide Micro-Capillary Pumped Loop." In ASME 2003 International Electronic Packaging Technical Conference and Exhibition. ASMEDC, 2003. http://dx.doi.org/10.1115/ipack2003-35138.

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Wide bandgap semiconductors such as SiC and GaN are materials that are advantageous for high power electronic devices. High power devices generate large amounts of energy that must be removed, and traditional cooling methods are insufficient for maintaining the desired operating temperatures. Thus, thermal management methods for high power electronic devices need to be developed. A SiC micro-capillary pumped loop thermal management system is being evaluated to cool SiC high power devices. Mathematical models incorporating two-phase flow and capillary wicking have been developed to analyze capillary pumped loops or loop heat pipes. This investigation uses a model based on the methodology of Dickey and Peterson (1994). The model takes an energy balance on the condenser and evaporator regions, as well as a pressure balance across the meniscus. A parametric study has been performed on the micro-CPL to determine the best design for a p-i-n diode that is less than 1 cm square and which produces a heat flux at the junction of over 300 W/cm2. The micro-CPL will be limited to a maximum size of 6.5 cm2. The liquid and vapor line lengths, number of grooves, and groove dimensions are varied to determine optimal values. The results and trends of the optimization calculations are discussed.
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6

Cabanes, Jose Luis, Federico Iborra-Bernad, and Carlos Bonafé-Cervera. "Reconstrucción virtual de ambientes urbanos a partir de fotografías históricas a través de Image Based Animations (IBA). La Plaza de la Virgen de Valencia alrededor de 1870." In 24th ISUF 2017 - City and Territory in the Globalization Age. Valencia: Universitat Politècnica València, 2017. http://dx.doi.org/10.4995/isuf2017.2017.6055.

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Reconstrucción virtual de ambientes urbanos a partir de fotografías históricas a través de Image Based Animations (IBA). La Plaza de la Virgen de Valencia alrededor de 1870. Jose Luis Cabanes Ginés¹, Federico Iborra Bernad², Carlos Bonafé Cervera3 ¹Departamento de Expresión Gráfica Arquitectónica. Universidad Politécnica de Valencia. Caminio de Vera s/n 46022 Valencia. 2Departamento de Composición Arquitectónica. Universidad Politécnica de Valencia. Caminio de Vera s/n 46022 Valencia 3Departamento de Ing. Cartográf. Geodesia y Fotogramtría. Universidad Politécnica de Valencia. Caminio de Vera s/n 46022 Valencia E-mail: jlcabane@ega.upv.es, f_iborra@yahoo.es, carboce1@topo.upv.es Keywords (3-5): virtual reconstruction, historical urban environment, image based animations Conference topics and scale: City transformations / Tools of analysis in urban morphology The recreation of the historical environment of emblematic urban spaces in our cities through interactive technologies, allows to extend their knowledge among the interested users while contributing to its assessment. When the documentary bases are photographs it is possible to carefully model the recorded elements using photogrammetry techniques based on 3D primitives, so that by means of an immersive navigation limited to certain points of view, an appearance of acceptable tridimensionality is obtained, where only isolated images of dispersed frames are available. The virtual recreation can be completed increasing its realistic appearance through its edition with animations of objects (for example, carriages) and characters, texts, musical setting, etc. The results can be presented in formats such as video or navigation through virtual reality helmets. From a selection of the first historical photographs of the Plaza de la Virgen, that we have obtained searching in several documentary sources, our multidisciplinary team is interested in a reliable, realistic and pleasant presentation of the urban environment of one of the most representative places in the city of Valencia, whose spatial configuration has changed significantly over the years. References (100 words) Braun, C., Kolbe, T. H., Lang, F., Schickler, W., Steinhage, V., Cremers, A. B., Förstner, W., Plümer, L., 1995. Models for photogrammetric building reconstruction. Computers & Graphics, Volume 19, Issue 1, pp. 109-118. Debevec, P., Taylor, C. J. and Malik, J., 1996. Modeling and rendering architecture from photographs: A hybrid geometry and image-based approach. SIGGRAPH’96, pp. 11–20. De Mesa, A., Regot, J., Nuñez, M. A. and Buill, F., (2009). Métodos y procesos para el levantamiento de reconstrucción tridimensional gráfica de elementos del patrimonio cultural. La iglesia de Sant Sever de Barcelona. Revista EGA, nº 14, pp. 82-89. Drap, P., Grussenmeyer, P. and Gaillard, G., 2001. Simple Photogrammetric Methods with ARPENTEUR: 3-D Plotting and Orthoimage generation. XVIII International Symposium CIPA 2001, Potsdam (Germany). International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, nº 34 (Part 5/C7), pp. 47-54. El-Hakim, S., Beraldin, J. and Lapointe, A., 2002. Towards Automatic Modeling of Monuments and Towers. IEEE Proceedings of the International Symposium on 3D Data Processing Visualization and Transmission, 3DPVT 2002, Padua, Italy, pp. 526-531. Proyecto Barcelona Darrera Mirada, http://darreramirada.ajuntament.barcelona.cat/#historia/8/1 The Old New York, http://vimeo.com/160024074, https://vimeo.com/162572088
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Suryawanshi, Vinod B., Evan T. Kimbro, and Ajit D. Kelkar. "Life Prediction and Stiffness Degradation Modeling of Glass/Epoxy Composites Subjected to Flexural Fatigue Loading." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-67664.

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Textile composite are extensively used as structural materials for automotive, aerospace, energy, transportation and construction applications. During their service life these structures are subjected to different types of static and cyclic loading. For structural health monitoring of these structures, it is important to know the fatigue life and damage occurred at any stage of the life of the structure. Fatigue life is generally estimated using suitable life prediction model, while fatigue damage can be predicted by monitoring measurable damage parameters such as stiffness and strength. Two mathematical models namely fatigue life prediction model and stiffness degradation model are proposed for plain weave glass/epoxy composite subjected to flexural fatigue loading. Three different functions namely linear, exponential and sigmoid are evaluated to represent S-N diagram for plain weave glass/epoxy composite. Using predicted fatigue life along with initial modulus as inputs, the stiffness degradation model can predict residual stiffness at any stage of the fatigue loading life cycle. Logarithmic function used to represent stiffness degradation in the model is derived by inverting Boltzmann sigmoid function. The results of both, fatigue life model and stiffness degradation model were found to be in good agreement with those of the experimental results.
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Agarwal, Akhil, Todd M. Bandhauer, and Srinivas Garimella. "Heat Transfer Model for Condensation in Non-Circular Microchannels." In ASME 2007 5th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2007. http://dx.doi.org/10.1115/icnmm2007-30223.

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A model for predicting heat transfer during condensation of refrigerant R134a in horizontal noncircular microchannels is presented. The thermal amplification technique developed and reported in earlier work by the authors is used to measure condensation heat transfer coefficients for six non-circular microchannels (0.424 < Dh < 0.839 mm) of different shapes over the mass flux range 150 < G < 750 kg/m2-s. The channels included barrel-shaped, N-shaped, rectangular, square, and triangular extruded tubes, and a channel with a W-shaped corrugated insert that yielded triangular microchannels. Results from previous work by the authors on condensation flow mechanisms in microchannel geometries were used to interpret the results based on the applicable flow regimes. The effect of tube shape was also considered in deciding the applicable flow regime. A modified version of the annular flow based heat transfer model proposed recently by the authors for circular microchannels, with the required shear stress being calculated from a noncircular microchannel pressure drop model also reported earlier was found to best correlate the present data for square, rectangular and barrel-shaped microchannels. For the other microchannel shapes with sharp acute-angle corners, a mist flow based model from the literature on larger tubes was found to suffice for the prediction of the heat transfer data. These models predict the data significantly better than the other available correlations in the literature.
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Patil, Navendu, Pradeep Mahadevan, and Anindya Chatterjee. "Fatigue Laws via Functional Equations." In ASME 2008 9th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2008. http://dx.doi.org/10.1115/esda2008-59243.

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In routine industrial design, fatigue life estimation is largely based on S-N curves and ad hoc cycle counting algorithms used with Miner’s rule for predicting life under complex loading. However, there are well known deficiencies of the conventional approach. Of the many cumulative damage rules that have been proposed, Manson’s Double Linear Damage Rule (DLDR) has been the most successful. Here we follow up, through comparisons with experimental data from many sources, on a new approach to empirical fatigue life estimation (‘A Constructive Empirical Theory for Metal Fatigue Under Block Cyclic Loading’, Proceedings of the Royal Society A, in press). The basic modeling approach is first described: it depends on enforcing mathematical consistency between predictions of simple empirical models that include indeterminate functional forms, and published fatigue data from handbooks. This consistency is enforced through setting up and (with luck) solving a functional equation with three independent variables and six unknown functions. The model, after eliminating or identifying various parameters, retains three fitted parameters; for the experimental data available, one of these may be set to zero. On comparison against data from several different sources, with two fitted parameters, we find that our model works about as well as the DLDR and much better than Miner’s rule. We finally discuss some ways in which the model might be used, beyond the scope of the DLDR.
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Lall, Pradeep, Nokibul Islam, Kaysar Rahim, and Jeff Suhling. "Prognosis Methodologies for Health Management of Electronics and MEMS Packaging." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-62319.

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The current state-of-art in managing system reliability is geared towards the development of life-prediction models for unaged pristine materials under known loading conditions based on relationships such as the Paris’s Power Law [Paris, et. al 1960, 1961], Coffin-Manson Relationship [Coffin 1954; Tavernelli, et. al. 1959; Smith, et. al. 1964; Manson, et. al. 1964] and the S-N Diagram. There is need for methods and processes which will allow interrogation of complex systems and sub-systems to determine the remaining useful life prior to repair or replacement. This capability of determination of material or system state is called “prognosis”. In this paper, a methodology for prognosis-of-electronics has been demonstrated with data of leading indicators of failure for accurate assessment of product damage significantly prior to appearance of any macro-indicators of damage. Proxies for leading indicators of failure have been developed including – micro-structural evolution characterized by average phase size and interfacial stresses at interface of silicon structures. Structures examined include – electronics package, MEMS Packages and interconnections on a metal backed printed circuit board typical of electronics deployed in harsh environments. Since, an aged material knows its state the research presented in this paper focuses on enhancing the understanding of material damage to facilitate proper interrogation of material state. Mathematical relationship has been developed between phase growth rate and time-to-1-percent failure to enable the computation of damage manifested and a forward estimate of residual life.
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Reports on the topic "And N S W ) Mathematical models"

1

Harris, L. B., P. Adiban, and E. Gloaguen. The role of enigmatic deep crustal and upper mantle structures on Au and magmatic Ni-Cu-PGE-Cr mineralization in the Superior Province. Natural Resources Canada/CMSS/Information Management, 2021. http://dx.doi.org/10.4095/328984.

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Aeromagnetic and ground gravity data for the Canadian Superior Province, filtered to extract long wavelength components and converted to pseudo-gravity, highlight deep, N-S trending regional-scale, rectilinear faults and margins to discrete, competent mafic or felsic granulite blocks (i.e. at high angles to most regional mapped structures and sub-province boundaries) with little to no surface expression that are spatially associated with lode ('orogenic') Au and Ni-Cu-PGE-Cr occurrences. Statistical and machine learning analysis of the Red Lake-Stormy Lake region in the W Superior Province confirms visual inspection for a greater correlation between Au deposits and these deep N-S structures than with mapped surface to upper crustal, generally E-W trending, faults and shear zones. Porphyry Au, Ni, Mo and U-Th showings are also located above these deep transverse faults. Several well defined concentric circular to elliptical structures identified in the Oxford Stull and Island Lake domains along the S boundary of the N Superior proto-craton, intersected by N- to NNW striking extensional fractures and/or faults that transect the W Superior Province, again with little to no direct surface or upper crustal expression, are spatially associated with magmatic Ni-Cu-PGE-Cr and related mineralization and Au occurrences. The McFaulds Lake greenstone belt, aka. 'Ring of Fire', constitutes only a small, crescent-shaped belt within one of these concentric features above which 2736-2733 Ma mafic-ultramafic intrusions bodies were intruded. The Big Trout Lake igneous complex that hosts Cr-Pt-Pd-Rh mineralization west of the Ring of Fire lies within a smaller concentrically ringed feature at depth and, near the Ontario-Manitoba border, the Lingman Lake Au deposit, numerous Au occurrences and minor Ni showings, are similarly located on concentric structures. Preliminary magnetotelluric (MT) interpretations suggest that these concentric structures appear to also have an expression in the subcontinental lithospheric mantle (SCLM) and that lithospheric mantle resistivity features trend N-S as well as E-W. With diameters between ca. 90 km to 185 km, elliptical structures are similar in size and internal geometry to coronae on Venus which geomorphological, radar, and gravity interpretations suggest formed above mantle upwellings. Emplacement of mafic-ultramafic bodies hosting Ni-Cr-PGE mineralization along these ringlike structures at their intersection with coeval deep transverse, ca. N-S faults (viz. phi structures), along with their location along the margin to the N Superior proto-craton, are consistent with secondary mantle upwellings portrayed in numerical models of a mantle plume beneath a craton with a deep lithospheric keel within a regional N-S compressional regime. Early, regional ca. N-S faults in the W Superior were reactivated as dilatational antithetic (secondary Riedel/R') sinistral shears during dextral transpression and as extensional fractures and/or normal faults during N-S shortening. The Kapuskasing structural zone or uplift likely represents Proterozoic reactivation of a similar deep transverse structure. Preservation of discrete faults in the deep crust beneath zones of distributed Neoarchean dextral transcurrent to transpressional shear zones in the present-day upper crust suggests a 'millefeuille' lithospheric strength profile, with competent SCLM, mid- to deep, and upper crustal layers. Mechanically strong deep crustal felsic and mafic granulite layers are attributed to dehydration and melt extraction. Intra-crustal decoupling along a ductile décollement in the W Superior led to the preservation of early-formed deep structures that acted as conduits for magma transport into the overlying crust and focussed hydrothermal fluid flow during regional deformation. Increase in the thickness of semi-brittle layers in the lower crust during regional metamorphism would result in an increase in fracturing and faulting in the lower crust, facilitating hydrothermal and carbonic fluid flow in pathways linking SCLM to the upper crust, a factor explaining the late timing for most orogenic Au. Results provide an important new dataset for regional prospectively mapping, especially with machine learning, and exploration targeting for Au and Ni-Cr-Cu-PGE mineralization. Results also furnish evidence for parautochthonous development of the S Superior Province during plume-related rifting and cannot be explained by conventional subduction and arc-accretion models.
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