scholarly journals CRITERIO DE OPTIMIZACION POR COMPENSACION EN EL DISEÑO DE BOTELLAS CON SUPÈRFICIES LATERALES DE REVOLUCION USADOS POR EMPRESAS EN LA COMERCIALIZACION DE ALIMENTOS Y BEBIDAS

2019 ◽  
pp. 63-67

CRITERIO DE OPTIMIZACION POR COMPENSACION EN EL DISEÑO DE BOTELLAS CON SUPÈRFICIES LATERALES DE REVOLUCION USADOS POR EMPRESAS EN LA COMERCIALIZACION DE ALIMENTOS Y BEBIDAS OPTIMIZATION CRITERION BY COMPENSATION FOR DESIGNING BOTTLES WITH SURFACE OF REVOLUTION USED BY FACTORIES FOR COMMERCIALIZING FOODS AND DRINKS Lizandro B. Reyna-Zegarra , Teodoro Moore-Flores DOI: https://doi.org/10.33017/RevECIPeru2009.0013/ RESUMEN En el presente artículo, se expone el resultado de un trabajo de investigación realizado con el propósito de validar un criterio a seguir con la finalidad de optimizar el ahorro de material en el diseño de botellas comerciales con superficies laterales de revolución y bases planas fundamentalmente. A tal criterio de optimización se le denomino Criterio de Optimización por Compensación el cual usa como herramienta principal los métodos numéricos y un programa computacional. La característica fundamental de diseño optimo es que el contenedor debe ser talque su área superficial interna debe ser mínima para un cierto volumen dado. El criterio quedo validado al mostrarse que en casi la totalidad de botellas comerciales se usa mas material que el establecido por el Criterio de Optimización por Compensación. Palabras clave: Optimización, Diseño de botellas comerciales. ABSTRACT In the present article is expounded the result of a research work performed in order to validate a criterion to fallow to optimize material for designing commercial bottles with lateral revolution surfaces and flat bases mainly. Such optimization criterion was called Optimization Criterion by Compensation which uses as main tools, numerical methods and a computer program. The fundamental characteristic of optimum design is that the container must be in such a way the area of its total internal surface must be a minimum for a given volume. Such criterion was validated when it was shown that in most commercial bottles it is used much more material than the Optimization Criterion by Compensation tell us. Keywords: Optimization, Design of commercial bottles.

2017 ◽  
Vol 1 (8) ◽  
Author(s):  
Cristian Fernando Cedeño Sarmiento ◽  
Alex Gregorio Mendoza Arteaga ◽  
Gregorio Isoldo Mendoza Cedeño ◽  
Enrique Javier Macías Arias

En el presente artículo se realiza un análisis de la usabilidad del Documento Nacional de Identidad electrónico en países desarrollados y su futura implementación en el Ecuador, la necesidad de tener un documento de identificación electrónico legal que permita validar la identidad de los ciudadanos al momento de acceder a los servicios electrónicos públicos y privados. Se analizan conceptos referentes a la firma electrónica, las entidades que intervienen en el proceso, los mecanismos de encriptación de un mensaje, hasta culminar con la implementación de dicha firma electrónica. Finalmente, se hace una reflexión sobre la implementación de un nuevo documento de identidad en el Ecuador el cual debería contener las características necesarias acorde a las nuevas tecnologías existentes, los estándares internacionales y sus posibles usos en los servicios informáticos disponibles en el país.  Palabras clave: Encriptación, tecnologías, servicios informáticos, identificación electrónica   Applications of electronic signatures using digital certificates: The National Electronic Identity in Ecuador   Aplicaciones electrónicas en Ecuador    Abstract  In the present article itself performs an analysis of the usability of the National Electronic Identity Document in developed countries and its future implementation in Ecuador, the need for a legal electronic identification document to validate the identity of citizens at time by accessing the electronic government and corporate services. Discusses concepts related to electronic signatures, the entities involved in the process, the mechanisms for the encryption a message, culminating with the implementation of electronic signatures. Finally, a reflection on the implementation of a new identity in Ecuador that should contain the necessary characteristics according to the new existing technologies, international standards and their possible uses and computer services available in the country. Keywords: Encriptación, tecnologías, servicios informáticos, identificación electrónica


2018 ◽  
Vol 5 ◽  
pp. 129
Author(s):  
Miriam Yvonn Márquez Barragán

Resumen: El baile a lo largo del tiempo ha sido visto como una actividad peligrosa para los valores morales y religiosos. El cuerpo de la mujer ha sido visto como un medio para excitar el pecado. La obra dramática de Federico García Lorca logra capturar el conflicto moral y las implicaciones sexuales del baile con personajes femeninos que luchan entre el deseo y sus  instintos. En el presente trabajo, analizo algunos de los valores sociales y morales del baile en el teatro de Lorca. Palabras clave: Federico García Lorca, Danza, trangresión, cuerpo, estigma social. Abstract: Dance over time has been perceived as an activity threatening certain moral and religious values. The female body is the expressive instrument in dancing, as a mean to incite sinful behavior. The dramatic work of Federico García Lorca capture the moral conflict and the sexual implications of the dance with female characters who struggle between desire and their instincts. In the present article, I review some of the negative social and moral values present in dancing, in Lorca’s view.Key words: Federico Garcia-Lorca, dance, transgression, body, social stigma.


2016 ◽  
Vol 23 (2) ◽  
pp. 16 ◽  
Author(s):  
Ana Karina Campos Moreira Da Costa Santos ◽  
Natália Ramos

O presente artigo apresenta uma revisão teórica sobre a temática da violência e do bullying em contexto escolar, sustentada na análise alargada de diversas fontes documentais, publicações e literatura científica da especialidade, de vários autores de referência, almejando uma aprofundada compreensão e uma adequada contextualização teórica do fenómeno em estudo. Trata-se da primeira etapa de um trabalho de investigação em desenvolvimento no âmbito da referida problemática, no Centro de Estudos das Migrações e das Relações Interculturais (CEMRI), da Universidade Aberta de Lisboa, Grupo de Investigação “Saúde, Cultura e Desenvolvimento”. O trabalho objetiva identificar, compreender e , analisar  os processos inerentes à construção da violência e da exclusão social no  meio escolar português. Pretendemos, também, aferir as principais causas e consequências dos comportamentos violentos em contexto escolar, assim como definir possíveis formas de prevenção e estratégias de intervenção/atuação, nomeadamente através dos contributos da educação intercultural. Para realizar este estudo, ainda em elaboração na sua vertente empírica, optámos pelo método de investigação qualitativa. Escolhemos realizar um estudo de tipo descritivo, na categoria de estudo de caso. Assim, propomo-nos estudar o caso de uma escola do primeiro ciclo do ensino básico, de um agrupamento de escolas do distrito de Setúbal, situada numa zona urbana do concelho do Seixal. Palavras-chave: Violência. Bullying. Vitimização. Escola. Prevenção. Educação intercultural.VIOLENCE AND BULLYING IN SCHOOL CONTEXT: contributions of intercultural perspectiveAbstract: This article presents a literature review on the theme of violence and bullying in schools, based on extensive analysis of various documentary sources, publications and scientific literature, from many relevant authors, aiming to achieve a wide understanding and proper contextualization of the phenomenon under study. This is the first stage of a research work that is being developed on the mentioned topic, at the Research Center for Migration and Intercultural Relations (CEMRI), of the Open University of Lisbon, Research Group “Health, Culture and Development”. The study aims to identify, to know, analyze and understand the processes involved in the construction of violence and social exclusion in portuguese schools. We also intend to assess the main causes and consequences of violent behavior in schools, as well as finding ways to prevent violence and defining intervention strategies / actions, namely through contributions of intercultural education. To carry out this study, still in progress in its empirical part, we have chosen the qualitative research method. We chose to perform a descriptive study, in the case study category. Therefore, we propose to study the case of a school of the first cycle of basic education (primary school), which belongs to a group of schools from Setúbal district, located in an urban area of Seixal.Keywords: Violence. Bullying. Victimization. School. Prevention. Intercultural education.VIOLENCIA Y BULLYING EN EL CONTEXTO ESCOLAR: contribuciones de la perspectiva intercultural Resumen: En este artículo se presenta una revisión de la literatura sobre el tema de la violencia y la intimidación en las escuelas, en base a un amplio análisis de diversas fuentes documentales, publicaciones e literatura científica, de muchos autores de referencia, con el objetivo de una profunda comprensión y contextualización adecuada del fenómeno en estúdio. Esta es la primera parte de un trabajo de investigación en el desarrollo en el Centro de Estudos en Migración y Relaciones Interculturales (CEMRI), de la Universidad Aberta de Lisboa, Grupo de Investigatión “Salud, Cultura y Desarrollo”. El estúdio tiene como objetivo identificar, comprehender y analizar los procesos que intervienen en la construcción de la violencia y la exclusión social en las escuelas portuguesas. Tenemos la intención, también, de identificar las principales causas y consecuencias de los comportamientos  violentos en contextos escolar, así como definir posibles formas de prevención  y estrategias de intervención/atuación, identificada a través de las contribuciones de la educación intercultural.  Para realizar este estudio, todavía en elaboración en su vertiente empírica, optamos por lo método de investigación cualitativa. Elegimos  realizar un estudio del tipo descriptivo, en la categoría de estudio de caso. Así, proponemos estudiar el caso de una escuela de primero ciclo de enseñanza básica, de un agrupamiento  de esculelas del distrito de Setúrbal, situada en la zona urbana del consejo del Seixal.   Palabras clave: Violencia. Bullying. Victimización. Escuela. Prevención. Educación intercultural.


2021 ◽  
Author(s):  
Boris Obsieger

Textbook of several universities. 2nd edition. The color edition is also available at Glasstree Bookstore. It is recommended for students. The series of books Numerical Methods is written primarily for students at technical universities, but also as a useful handbook for engineers, PhD students and scientists. This volume introduces the reader into numeral systems and representation of numbers in digital computers. Possibly the most important part of this book are descriptions of differences between constant and random variables, related types of errors and error propagation. These topics are supplemented with various types of regression analyses. Finally, direct and iterative methods for finding roots of polynomials are explained. Practical application is supported by 77 examples and 13 algorithms. For reasons of simplicity, algorithms are written in pseudo-code, so they can easily be included in any computer program.


Author(s):  
Urska Markun ◽  
Jasna Kos

A university degree is not enough in itself to equip a mathematics teacher for successful secondary school-teaching in the longer term. Without continuous training and career-long learning, a teacher will not be able to provide adequate support for students in activities such as extended essays or explorations, both of which are compulsory components of the IB programme. In this paper, we present some examples of such work by IB students at our school. In addition, some Slovenian secondary school students regularly participate in a national research competition for which they must submit project-based work in various fields. The present article describes how university departments co-operated with our secondary school in the course of such research. Examples of research carried out by a number of 16-year-old students at our school are also presented here.


2012 ◽  
Vol 503-504 ◽  
pp. 805-808
Author(s):  
Yan Jun Zhao ◽  
Xing Ming Huang ◽  
Shu Guang Li ◽  
Cheng Xu

Structure design and material selection of weapons is the key of the weapon design. The dynamic strength are studied of the weapon’s key parts by finite element simulation in Elastic plastic mechanics. The results show that the body can withstand the maximum pressure, and the simulating results are well coincident with the experiment ones, which confirms the reliability and availability of the virtual prototype model advanced here. Current research work will be helpful in further this kind of designers to select material and the frame optimization design.


2012 ◽  
Vol 479-481 ◽  
pp. 876-879
Author(s):  
Xian Zhi Li ◽  
Bao Lin Yin ◽  
Chun Shan Liu ◽  
Si Yu Chen

This article analyzes the NGW type planetary gear transmission mechanism and structure, establishes boundary constraint conditions and mathematics optimization model in view of the smallest volume's project objective. It can realize the NGW type planetary gear transmission optimization design through compiling corresponding computer program, obtain the optimization design parameters. In optimization design's foundation, it applies the CAD technology to establish drawing program, realizes the parametric drawing.


2016 ◽  
Vol 1 (3) ◽  
pp. 1 ◽  
Author(s):  
Rafael Tejeda Díaz

La oferta formativa de las universidades en la modernidad deben responder a las necesidades crecientes de la sociedad en el presente y con su proyección de futuro, de forma  tal  que  estas  respondan  formado  profesionales  que  puedan  resolver  los problemas asociados a su profesión de forma dinámica y sustentable. En este entorno de análisis realizar los estudios de pertinencia para elaborar proyectos de carreras de grado y posgrado, de forma coherente e integral es una de las premisas para cumplir con tal propósito, aspecto esencial que se da tratamiento teórico y metodológico en el presente artículo. PALABRAS CLAVE: pertinencia; formación; educación superior. The training offer of universities in modernity must respond to the growing needs of society in the present and with its future projection, so that these respond formed professionals  who  can  solve  the  problems  associated  with  their  profession  in  a dynamic and sustainable way. In this environment of analysis to carry out the pertinence  studies  to  develop  projects  of degrees  and  postgraduate  degrees,  in  a coherent and integral way is one of the premises to fulfill this purpose, an essential aspect that is given theoretical and methodological treatment in the present article. KEYWORDS: relevance; training; higher education.


2020 ◽  
Vol 5 (4) ◽  
pp. 45
Author(s):  
Jose Cristhian Medranda Cedeño ◽  
Gustavo Enrique Antón Vera

El presente trabajo de investigación busca mejorar la atención en estudiantes durante las clases de educación física. La literatura científica revela la necesidad de un óptimo proceso neuropsicológico como la atención y la memoria para el buen desempeño del proceso de enseñanza-aprendizaje del alumnado. Para lo cual se aplicó la técnica Toulouse – Pieron que permitió medir el Índice General de Atención y Percepción a 90 estudiantes de entre 14 y 17 años de la unidad educativa franklin Delano Roosevelt de la ciudad de Portoviejo. El objetivo general consistió en mejorar la capacidad atentiva considerando que la educación física favorece al desarrollo integral del ser humano, para ello se desarrolló un programa de juegos pre deportivos que ayudo claramente a cumplir los objetivos para los estudiantes involucrados, cuyo proceso fue aplicado durante las clases de educación física, ya que mayoritariamente se trabaja con actividades compuestas y combinadas determinando que exista una mejora considerable en el proceso atentivo. Los resultados muestran que la investigación procuró el cumplimiento de los objetivos trazados. PALABRAS CLAVE: Atención; Memoria; Programa; Juegos pre deportivos; educación física. Pre-sports games program to improve the attention of the students of the Franklin Delano Roosevelt Educational Unit ABSTRACT This research work seeks to improve student attention during physical education classes. The scientific literature reveals the need for an optimal neuropsychological process such as attention and memory for the good performance of the teaching-learning process of the students. For this, the Toulouse-Piéron technique was applied, which allowed the measurement of the General Index of Attention and Perception to 90 students between 14 and 17 years old from the Franklin Delano Roosevelt educational unit in the city of Portoviejo. The general objective was to improve the attentive capacity considering that physical education favors the integral development of the human being, for this pre-sports games program was developed that clearly helped to meet the objectives for the students involved, whose process was applied during the physical education classes, since most of them work with composite and combined activities, determining that there is a considerable improvement in the attention process. The results show that the research sought to meet the objectives set. KEYWORDS: Attention; Memory; Program; Pre sports games; physical education.


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