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Revista Mexicana De Fisica E最新文献

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Applications of the double and the dual numbers. The Bianchi models 双精度和双精度数的应用。Bianchi模型
Revista Mexicana De Fisica E Pub Date : 2020-07-01 DOI: 10.31349/revmexfise.17.146
G. F. Torres del Castillo
{"title":"Applications of the double and the dual numbers. The Bianchi models","authors":"G. F. Torres del Castillo","doi":"10.31349/revmexfise.17.146","DOIUrl":"https://doi.org/10.31349/revmexfise.17.146","url":null,"abstract":"We show that by using complex, double, and dual numbers one can find the invariant one-forms employed in the metrics of the Bianchi cosmological models. The result is equivalent to find, locally, all the Lie groups of dimension three.","PeriodicalId":49600,"journal":{"name":"Revista Mexicana De Fisica E","volume":"36 1","pages":"146-149"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81318060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
El problema de la Braquistócrona en el cilindro S1 × R con varias vueltas S1 × R圆柱体上的臂同步问题与几圈
Revista Mexicana De Fisica E Pub Date : 2020-07-01 DOI: 10.31349/revmexfise.17.276
H. L. Carrion S.
{"title":"El problema de la Braquistócrona en el cilindro S1 × R con varias vueltas","authors":"H. L. Carrion S.","doi":"10.31349/revmexfise.17.276","DOIUrl":"https://doi.org/10.31349/revmexfise.17.276","url":null,"abstract":"Presentamos brevemente el problema del braquistócrona en un plano vertical. A seguir presentamos la formulación paramétrica del problema de la braquistócrona sobre la superficie de un cilindro vertical de radio R y encontramos la curva que resuelve este problema. Enseguida formulamos el problema del tautócrona en el cilindro y demostramos que la curva tipo braquistócrona encontrada anteriormente tiene conportamiento tautócrono, esto es, dos partículas sueltas del reposo de puntos distintos de la curva braquistócrona, llegan al punto más bajo de la trajectoria en forma simultánea.Se verifica también que la curva tipo braquistócrona en un plano vertical (cicloide invertida) es límite de la curva tipo braquistócrona encontrada en la superficie cilíndrica cuando el radio delcilindro tiende al infinito. Posteriormente analizamos el problema del braquistócrona entre dos pontos fijos A y B sobre la superficie cilíndrica con la condición adicional de que la partícula antes de llegar al punto final B deve dar um cierto número de vueltas previamente definido. Encontramos la curva que resuelve este problema y adicionalmente encontramos uma relación matemática que determina cuantos vueltas como máximo puede haber si fijamos los valores de las coordenadas del punto inicial (A), final (B), el radio del cilindro y g (la aceleración de la gravedad).","PeriodicalId":49600,"journal":{"name":"Revista Mexicana De Fisica E","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46071172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Implementación de un método numérico para la solución de una ecuación del tráfico 实现了求解交通方程的数值方法
Revista Mexicana De Fisica E Pub Date : 2020-07-01 DOI: 10.31349/revmexfise.17.165
E. López-Sánchez, P. E. Olivera
{"title":"Implementación de un método numérico para la solución de una ecuación del tráfico","authors":"E. López-Sánchez, P. E. Olivera","doi":"10.31349/revmexfise.17.165","DOIUrl":"https://doi.org/10.31349/revmexfise.17.165","url":null,"abstract":"Los estudiantes de licenciatura y posgrado en ciencias tienen conocimientos muy heterogeneos de herramientas computacionales para resolver problemas matematicos. Generalmente los profesores no conocen el manejo de todos los programas computacionales existentes, asi que deben mediar entre las herramientas que ellos conocen y las que dominan los alumnos para que el curso avance sin dificultad y sin detenerse a ensenar un solo tipo de herramienta. Se aborda esta problematica utilizando la siguiente metodologia: se explica el algoritmo general que resuelve el problema, se implementa en un lenguaje de programacion facil de aprender, de libre distribucion y en el que se grafican los resultados directamente. Se implementa en el modelo de trafico vehicular de Greenberg. Los resultados se contrastan con los datos del articulo original de Greenberg y algunos tomados directamente en la Ciudad de Mexico.","PeriodicalId":49600,"journal":{"name":"Revista Mexicana De Fisica E","volume":"3 1","pages":"165-177"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88289225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of physics comic based on local wisdom: Hopscotch (engklek) game android-assisted to improve mathematical representation ability and creative thinking of high school students 基于本土智慧的物理漫画开发:机器人辅助跳房子(engklek)游戏，提高高中生的数学表达能力和创造性思维
Revista Mexicana De Fisica E Pub Date : 2020-07-01 DOI: 10.31349/revmexfise.17.255
F. Sari, S. Nikmah, H. Kuswanto, R. Wardani
{"title":"Development of physics comic based on local wisdom: Hopscotch (engklek) game android-assisted to improve mathematical representation ability and creative thinking of high school students","authors":"F. Sari, S. Nikmah, H. Kuswanto, R. Wardani","doi":"10.31349/revmexfise.17.255","DOIUrl":"https://doi.org/10.31349/revmexfise.17.255","url":null,"abstract":"Comic can be an effective educational tool at various levels of Education. Developmental trends of technology can be used as a learning medium. In this research the comics are designed for operated using an android. This study aims to produce a local wisdom based physics comic media: hopscotch game that is suitable for learning impulse and momentum material in high school, and to know the effectiveness of the media used to improve mathematical representation and creative thinking of students. This research is a Research and Development (R&D) using the Borg & Gall model. Research instruments include product assessment sheets, questionnaire, mathematical representation and creative thinking tests. The data analysis technique used is the MANOVA test. The results show that the product is a media that is operated using a smartphone/ android with the EPUB-Reader application or a computer with an internet browser. The comic media contains impulse and momentum material, videos, examples, and practice questions. The product is categorized as suitable to be used in the physics learning process. There is a difference between the experimental and control classes. This shows that the local wisdom based Physics comic: android-assisted can improve mathematical representation and creative thinking of high school students.","PeriodicalId":49600,"journal":{"name":"Revista Mexicana De Fisica E","volume":"22 1","pages":"255-262"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75388929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 17
Confined free motion under a dipole potential 偶极子势下的受限自由运动
Revista Mexicana De Fisica E Pub Date : 2020-07-01 DOI: 10.31349/revmexfise.17.272
R. Sánchez-Martinez, H. N. Núñez-Yépez, A. L. Salas-Brito
{"title":"Confined free motion under a dipole potential","authors":"R. Sánchez-Martinez, H. N. Núñez-Yépez, A. L. Salas-Brito","doi":"10.31349/revmexfise.17.272","DOIUrl":"https://doi.org/10.31349/revmexfise.17.272","url":null,"abstract":"The classical motion of a particle in a dipolar potential, $U_{hbox{dip}}(q) = - {k}/{q^2}$, and free motion along a curve in phase space are proven to be equivalent. We also prove that the singularity at $q=0$ in the dipolar potential is strong enough as to prevent the flow of particles from one side of the singularity to the other. This effect does not depende on whether the dipole potential is regarded as attractive ($k>0$) or as repulsive ($k<0$). All the proofs are given using the Hamitonian formalism, therefore they may be used for illustrating the power the Hamiltonian approach may confer in analysing different mecanical systems. The discussion is keep within the reach of advanced undergraduate or graduate students of Hamiltonian mechanics.","PeriodicalId":49600,"journal":{"name":"Revista Mexicana De Fisica E","volume":"20 1","pages":"272-275"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88644421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
El límite de Chandrasekhar para principiantes Chandrasekhar对初学者的限制
Revista Mexicana De Fisica E Pub Date : 2020-07-01 DOI: 10.31349/RevMexFisE.17.125
J. Pinochet
{"title":"El límite de Chandrasekhar para principiantes","authors":"J. Pinochet","doi":"10.31349/RevMexFisE.17.125","DOIUrl":"https://doi.org/10.31349/RevMexFisE.17.125","url":null,"abstract":"En un breve artículo publicado en 1931 y ampliado en 1935, el astrofísico hindú Subrahmanyan Chandrasekhar hizo público un importante descubrimiento astronómico donde introducía lo que en nuestros días se conoce como límite de Chandrasekhar. Este límite establece la masa máxima que puede alcanzar una enana blanca, que es el remanente estelar que se genera cuando una estrella de baja masa ha agotado su combustible nuclear. El presente trabajo tiene un doble propósito. El primero es presentar una derivación heurística del límite de Chandrasekhar. El segundo es clarificar la génesis del descubrimiento de Chandrasekhar, así como los aspectos conceptuales del tema. La exposición solo utiliza de álgebra de secundaria, así como de algunas nociones generales de física clásica y teoría cuántica.","PeriodicalId":49600,"journal":{"name":"Revista Mexicana De Fisica E","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48275665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Desarrollo de competencias genéricas y específicas en estudiantes de ingeniería en el marco del laboratorio de física 在物理实验室框架内发展工程学生的通用和特定能力
Revista Mexicana De Fisica E Pub Date : 2020-07-01 DOI: 10.31349/revmexfise.17.104
S. Vega-Royero
{"title":"Desarrollo de competencias genéricas y específicas en estudiantes de ingeniería en el marco del laboratorio de física","authors":"S. Vega-Royero","doi":"10.31349/revmexfise.17.104","DOIUrl":"https://doi.org/10.31349/revmexfise.17.104","url":null,"abstract":"El objetivo de este articulo es describir el desarrollo de competencias especificas y genericas a traves de la implementacion de experiencias de laboratorio en el marco del curso de fisica basica de estudiantes de ingenieria de la Facultad de Ingenieria y Arquitectura de la Universidad Catolica Luis Amigo, Medellin-Colombia. En el texto se describen las actividades y se presenta un analisis estadistico comparativo del rendimiento academico de los estudiantes cuando no se implementaron y cuando si se implementaron estas actividades en el periodo lectivo. Nos permitimos concluir que la inclusion de las experiencias de laboratorio y su complementacion con ayudas multimedias afianzan el aprendizaje de los contenidos del curso y ayuda en el desarrollo del pensamiento cientifico del estudiante.","PeriodicalId":49600,"journal":{"name":"Revista Mexicana De Fisica E","volume":"34 1","pages":"104-114"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81019785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Relating simple harmonic motion and uniform circular motion with Tracker 用跟踪器将简谐运动和匀速圆周运动联系起来
Revista Mexicana De Fisica E Pub Date : 2020-07-01 DOI: 10.31349/revmexfise.17.141
E. Pratidhina, F. Yuliani, W. S. B. Dwandaru
{"title":"Relating simple harmonic motion and uniform circular motion with Tracker","authors":"E. Pratidhina, F. Yuliani, W. S. B. Dwandaru","doi":"10.31349/revmexfise.17.141","DOIUrl":"https://doi.org/10.31349/revmexfise.17.141","url":null,"abstract":"In this study, we demonstrate an interesting relationship between simple harmonic motion and uniform circular motion trough a simple experiment. The experiment requires a low cost-easily found materials and free software, Tracker . To represent uniform circular motion, we use a tape that is stick on a fan moving with the constant angular speed. Meanwhile, spring and pendulum motion are used to represent simple harmonic motion. Through Video Tracker analysis, we have shown that the positions ( x and y coordinates) of an object undergoes uniform circular motion fit to the sinusoidal function of time, as same as shown in simple harmonic motion. This simple experiment can be used in high school physics course to lead students in developing a conceptual understanding of uniform circular motion with a less mathematical approach.","PeriodicalId":49600,"journal":{"name":"Revista Mexicana De Fisica E","volume":"272 1","pages":"141-145"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76431596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
ESPResSo: una herramienta para la docencia y la investigación 浓缩咖啡:教学和研究的工具
Revista Mexicana De Fisica E Pub Date : 2020-07-01 DOI: 10.31349/revmexfise.17.226
A. González-Martínez, S. Herrera Velarde, J. A. Moreno-Razo
{"title":"ESPResSo: una herramienta para la docencia y la investigación","authors":"A. González-Martínez, S. Herrera Velarde, J. A. Moreno-Razo","doi":"10.31349/revmexfise.17.226","DOIUrl":"https://doi.org/10.31349/revmexfise.17.226","url":null,"abstract":"ESPResSo es un software especializado para realizar simulaciones computacionales de dinamica molecular en el area de la materia condensada blanda; en particular fue creado para simulaciones del tipo grano grueso. Tradicionalmente, este software, ha sido utilizado como una poderosa herramienta para investigacion basica , aplicada y como una plataforma facil de extender acorde a las necesidades del usuario. Sin embargo, dada su inherente versatilidad y facilidad para implementar un sistema, es posible tambien u tilizarlo como una plataforma didactica que sirva como un primer acercamiento a la simulacion computacional, o bien, como herramienta de apoyo en la docencia. En este trabajo mostraremos las caracteristicas y uso basico d el software, a traves de la implementacion de algunos sistemas basicos y del calculo de observables estandar como la funcion de distribucion radial y el  desplazamiento cuadratico medio .","PeriodicalId":49600,"journal":{"name":"Revista Mexicana De Fisica E","volume":"7 1","pages":"226-235"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74726989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Numerical study of the fundamental fiber soliton propagation 基本光纤孤子传播的数值研究
Revista Mexicana De Fisica E Pub Date : 2020-07-01 DOI: 10.31349/revmexfise.17.191
H. E. Ibarra-Villalon, O. Pottiez, A. Gómez-Vieyra, Y. Bracamontes-Rodríguez, J. P. Lauterio-Cruz
{"title":"Numerical study of the fundamental fiber soliton propagation","authors":"H. E. Ibarra-Villalon, O. Pottiez, A. Gómez-Vieyra, Y. Bracamontes-Rodríguez, J. P. Lauterio-Cruz","doi":"10.31349/revmexfise.17.191","DOIUrl":"https://doi.org/10.31349/revmexfise.17.191","url":null,"abstract":"This work presents a numerical approach to understand the self-regeneration mechanism of the fundamental soliton propagation driven by the nonlinear Schr \" odinger equation in the nonlinear fiber formalism. This approach shows that the interplay between dispersion and nonlinearity results in a compensation effect in the phase and the instantaneous frequency representation of the pulse envelope. For a better understanding of this compensation process, 3D mapping propagation graphs are presented.","PeriodicalId":49600,"journal":{"name":"Revista Mexicana De Fisica E","volume":"17 1","pages":"191-200"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79187050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
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