444 research outputs found

    Implementación de buenas prácticas logísticas en el marco de seguridad industrial, almacenamiento y gestión del control de inventarios en la empresa Yokomotos

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    Con este trabajo se pretende generar una implementación de una mejora logística que agregue valor, aumente la eficiencia y mejore los procesos de almacenamiento y distribución, gestión del control de inventarios y seguridad industrial de la empresa YOKOMOTOS. Se realizó un estudio profundo de la situación y los problemas que tiene actualmente la empresa. Todo esto con el fin de dar resultados que diferencien a esta compañía en el mercado de los repuestos para motos, obteniendo mayor prestigio y reconocimiento a nivel latinoamericano. De igual forma se establecieron las posibles soluciones que permitieran mitigar estos problemas, mejorando los procesos en el área de almacenamiento, sistema de inventarios y seguridad industrial. Se realizaron diferentes pruebas piloto para analizar la viabilidad de nuestras soluciones, analizando espacios, tiempos y costos. Por último se implementó la mejor solución la cual se ajustó respondiendo a los requerimientos de la compañía, mejorando así los procesos de almacenamiento y distribución agregándole valor a su cadena.This work is an approach to an improved implementation of logistics in the process of distribution, storage and handling of inventory. This is done through an intensive study of the current situation of the company and the analysis of the cause of the problems currently living YOKOMOTOS, was selected for this important information for our study. Were established that allowed solutions to mitigate these problems, which conducted an improvement in the storage area, inventory system and industrial safety. Various pilot tests were conducted to analyze the viability of our solutions, analyzing space, time and costs. Finally, we implemented the best solution which was adjusted in response to the requirements of the company, thereby improving the storage and distribution processes adding value to its string. This study was conducted in order to increase efficiency in the company's internal processes YOKOMOTOS results concluding that differentiate in the market for spare parts for motorcycles, gaining more prestige and recognition in Latin America.Centro de Estudios Empresariales para la Perdurabilida

    Evaluación de las propiedades físicas - químicas de Eucalyptus urograndis Eeucalipto), en el sector de Fumisa, cantón Buena Fe, provincia de Los Ríos

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    La presente investigación propuso: evaluar las propiedades físicas - químicas de Eucalyptus urograndis (Eucalipto), en el sector Fumisa, cantón Buena Fe, provincia de Los Ríos; donde se realizó la georreferenciación del área de estudio para la selección de las parcelas considerando los diámetros promedio y máximo de cada una de las cinco procedencias; las trozas se obtuvieron a la altura del DAP y altura comercial, posteriormente se realizó probetas de 3x4x7 (cm), resultando ocho probetas por cada árbol de las cuales se utilizaron 4 para contenido de humedad seco al horno el cual se realizó a una temperatura 103°C con intervalos de 3 horas, dando un total de 6 mediciones hasta que la diferencia entre medidas no varíe significativamente, las mediciones se realizaron cuando las probetas alcanzaban la temperatura ambiente; y 4 para seco al aire las mismas que se colocaron a temperatura ambiente por 60 días. Se determinó la densidad en verde, seca al horno, seca al aire y la densidad básica. Para la determinación del pH se recogió el aserrín mismo que fue mezclado con agua destilada y para su lectura en el pH metro. Además, se realizó una comparación entre la densidad obtenida por inmersión y medida con pie de rey digital. Obteniendo resultados significativos en la procedencia 2 para contenido de humedad, densidad y pH Palabras clave: PROPIEDADES FÍSICAS - QUÍMICAS - CONTENIDO DE HUMEDAD DE LA MADERA- TECNOLOGÍA DE LA MADERA.The current research work proposed to evaluate the physical-chemical properties of Eucalyptus urograndis (Eucalyptus) of Fumisa, located in the Buena Fe County, Los Ríos Province through the georeferencing about the study area for the selection of plots considering the average and maximum diameters of each of the five provenances. The pieces of wood were obtained at the height of the DAP and commercial height. After that, it made samples of 3x4x7 (cm), obtaining eight test tubes for each tree of which, 4 were used for drying moisture content in the furnace that was made at a temperature of 103°C with intervals of 3 hours, giving a total of 6 measurements until the difference between measurements does not vary significantly. The measurements were made when the test tubes reached room temperature for 60 days. On the other hand, it determined the density in green, dried in the furnace, air dried and basic density. To determine the pH, it collected the wood sawdust which was mixed with distilled water and for its reading at the pH meter. In addition, it made a comparison between the density obtained by immersion and measured with digital measuring caliper obtaining results in provenance 2 for moisture content, density and pH. Key words: PHYSICAL-CHEMICAL PROPERTIES, WOOD MOISTURE CONTENT, WOOD TECHNOLOG

    Análisis del efecto de la histéresis del tráfico en un tramo de la autopista México-Orizaba

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    A través de la teoría macroscópica del flujo vehicular y de datos de circulación empíricos, analizar las condiciones de circulación en un tramo carretero con flujo vehicular continuo en el que se presenten problemas de congestión con la finalidad de identificar la presencia del fenómeno de histéresis del tránsito. Una vez evidenciado la presencia del fenómeno, seleccionar un marco teórico que permita caracterizarlo a fin de cuantificar sus efectos, conocer las causas y realizar pronósticos. Finalmente, emplear dichos análisis para proponer medidas que reduzcan la variabilidad de las condiciones de circulación cuando este fenómeno tiene lugar

    Características sociodemográficas y probabilidades de inclusión laboral de personas con discapacidad en Chile. Implicancias para las políticas sociales críticas

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    In Chile, labor inclusion for people in the situation of disability is low. By using the Second National Survey of Disability in Chile and running a logistic regression model (N=2,618), this study explores how sex, education, age, and level of functional dependency are associated with the probability of people in the situation of disability of having work. Findings suggest that being a woman with a disability or being older reduces the probability of having work. Besides, having more years of education increases the probability of it. Implications for critical social policies are also discussed

    Predictive inference on finite populations segmented in planned and unplanned domains

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    In this paper, we develop a new model-based method to inference on totals and averages of nite populations segmented in planned domains or strata. Within each stratum, we decompose the total as the sum of its sampled and unsampled parts, making inference on the unsampled part using Bayesian nonparametric methods. Additionally, we extend this method to make inference on totals of unplanned domains simultaneously modelling, within each stratum, the underlying uncertainty about the composition of the population and the totals across unplanned domains. Making inference on population averages is straightforward in both frameworks. To illustrate these methods, we develop a simulation exercise and evaluate the uncertainty surrounding the gender wage gap in Mexico

    Estudio de asfaltos y mezclas asfálticas modificadas con aceite residual de motor

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    Trabajo de investigaciónLos avances en infraestructura vial son muy importantes para el desarrollo socioeconómico de un país, a su vez, teniendo en cuenta las características ambientales en las que se encuentra sumergido el mundo es importante idear estrategias que permitan el progreso en infraestructura aportando de manera significativa al medio ambiente. El uso de aceite residual de motor como modificante del asfalto es una alternativas que se plantean actualmente como linea de investigación.INTRODUCCIÓN 1. GENERALIDADES 2. MARCO REFERENCIAL 3. METODOLOGIA 4. ANALISIS DE RESULTADOS 5. CONCLUSIONES Y RECOMENDACIONES BIBLIOGRAFÍA ANEXOSEspecializaciónEspecialista en Ingeniería de Pavimento

    Natural Stabilized Earth Panels versus Conventional Façade Systems. Economic and Environmental Impact Assessment

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    More effective construction technologies are needed nowadays in order to reduce construction energy consumption during the life-cycle of buildings. Besides which, it is necessary to consider the economic feasibility and associated costs within the framework of these alternative technologies so as to favouring their practical implementation in the construction sector. In this sense, this paper presents an economic and environmental comparison of a new non-bearing façade construction solution based on the extruded unfired stabilized clay panels as opposed to three traditional solutions with similar physical, thermal, and aesthetic characteristics in terms of the exterior cladding. The proposed panels are a sandwich type configuration with an intermediate insulating material and two exterior pieces manufactured by extrusion with raw earth stabilized with alginate and animal wool fibers. In this paper, details of the constructive technology of the system are provided. From the results obtained, it is possible to conclude that the solution is a valid alternative from the environmental point of view, considerably reducing the GlobalWarming Potential and the Cumulative Energy Demand. And although the environmental improvement of the system can be considered the primary objective of this investigation, on the other hand, once executed, it will also be a competitive constructive technology from the perspective of the system’s final costs

    La transfobia como dispositivo en la provincia mexicana de Colima: Hacia una aproximación psicosocial. / Transphobia as dispositive in Colima´s Mexican province: towards a psychosocial approach.

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    La transfobia es un hecho incontrovertible. En el contexto regional mexicano y latinoamericano se expresa a través de múltiples formas de violencia distribuidas en diversos ámbitos del tejido social. El presente artículo tiene un doble propósito. En primer lugar, identifica diferentes modalidades de violencia transfóbica presentes en un contexto particular localizado en la provincia mexicana colimense. La identificación y el mapeo de prácticas transfóbicas en dicho contexto echan mano de hallazgos obtenidos en recientes estudios de corte cualitativo que han buscado explorar esta cuestión desde la perspectiva de los propios sujetos trans. El análisis de los casos presentados enfatiza el carácter interdependiente y relacional de diferentes planos y modalidades de violencia. En segundo lugar, a partir del análisis realizado, se sugiere una reformulación de la comprensión psicosocial más convencional con que se concibe la violencia transfóbica. Se presentan dos claves orientadoras para dicha reformulación: a) una mirada situada que explora las configuraciones contextuales de la violencia, y b) una perspectiva que reconozca la inter-relación entre los planos simbólicos y materiales con que ésta opera. Transphobia is an incontrovertible fact. In the Mexican and Latin American regional context, it is expressed through multiple forms of violence distributed in various areas of the social field. This article has a twofold purpose. First, it identifies different levels and types of transphobic violence present in a particular context located in the Mexican province. The identification and mapping of transphobic practices in this context uses recent findings from qualitative studies that have sought to explore this issue from the perspective of the trans subjects themselves. The analysis of the cases presented emphasizes the interdependent and relational of different levels and types of violence. Secondly, based on the analysis, a reformulation of the more conventional psychosocial understanding of transphobic violence is suggested. Two guiding clues for such reformulation are presented: a) a situated perspective that explores the contextual configurations of violence, and b) a perspective that recognizes the inter-relationship between the symbolic and materials levels with which this violence operates

    Celdas de combustible con convertidores elevadores para energías alternativas

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    The need for energy in the world has led to the search for new ways of electric power generation, among which is the use of fuel cells as a renewable source that does not contribute to environmental pollution and has high efficiency in energy conversion. In this type of technology the system suffers voltage fluctuations due to the connected loads. Booster converters of boost type are used, which allow to regulate the tension to an optimal value, without great fluctuations. We chose the design of the PI type control by means of the state space method to obtain the transfer functions, and the Routh-Hurwitz criterion to obtain the constants of the PI controller. A fuel cell system of 1 kW was simulated keeping the regulator output voltage at 48 V constant with an overvoltage not greater than 30% of the desired value.The need for energy in the world has led to the search for new ways of electric power generation, among which is the use of fuel cells as a renewable source that does not contribute to environmental pollution and has high efficiency in energy conversion. In this type of technology the system suffers voltage fluctuations due to the connected loads. Booster converters of boost type are used, which allow to regulate the tension to an optimal value, without great fluctuations. We chose the design of the PI type control by means of the state space method to obtain the transfer functions, and the Routh-Hurwitz criterion to obtain the constants of the PI controller. A fuel cell system of 1 kW was simulated keeping the regulator output voltage at 48 V constant with an overvoltage not greater than 30% of the desired value

    Photonic Integrated Circuit Comprising Mode-Locked Laser and Pulse Interleaver for Wavelength Tunable THz Signal Generation

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    We report a photonic chip comprising multiple colliding pulse mode-locked laser and delay line-assisted Mach-Zehnder interleaver to generate 350GHz wave signal. With this mode-locked laser fourth harmonics are obtained. The interleaver quadruples the repetition rate. An integrated phase modulator enables wavelength tuning up to 0.03nm.This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 642355 and Spanish Ministerio de Economia y Competitividad DiDACTIC project (TEC2013-47753-C3-3-R). The authors would like to thank SMART Photonics for the chip fabrication
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