113 research outputs found

    NAVARRO BONILLA, Luis (Mayor)

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    Mayor Luis Navarro Bonilla asks Gen. Plutarco Elías Calles to sign some certificates that certify his service at the Body of Volunteers of the North District in Altar, Sonora. He needs to send said documents for his retirement from the Army due to a broken bone. / El mayor Luis Navarro Bonilla solicita al general PEC, que se encuentra exiliado en San Diego, Cal., que le firme certificados que anexa que comprueban sus servicios en el Cuerpo de Voluntarios del Distrito Norte de Altar, Son., ya que le es necesario entregar esos documentos para obtener su retiro del servicio activo del Ejército Nacional, ya que está incapacitado por una fractura

    El Tlacuache Núm. 628 (2014). 628 Año 13 (2014) junio. El Tlacuache

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    El horno de cal de Tlaxomolco por F. Minerva Martínez Olvera. - 38vo aniversario del Jardín Etnobotánico y Museo de Medicina Tradicional y Herbolaria. - Vestido de Hueyapan, Morelos por Fernando Sánchez

    El Tlacuache Núm. 439 (2010). 439 Año 10 (2010) octubre. El Tlacuache

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    La producción de cal y sus consecuencias por Claudia Alvarado León, Fernando Sánchez Martínez. -Los caracoles del género Oliva en Xochicalco por Emiliano Ricardo Melgar Tísoc

    Caracterización mecánica y eléctrica de la aleación de aluminio 6201 de uso en la fabricación de cables eléctricos

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    This degree work was performed with the purpose of establishing their effect aging heat treatments on the mechanical properties and electrical conductivity aluminum alloy 6xxx series. For 3 different heat treatment states of tension tests where strengths above 200 MPa, microhardness tests in which greater than 70 Hv, tests and differential scanning calorimetry were obtained resistivity traction hardnesses were achieved they were performed. As a further result of the stress tests, the type of fractures through scanning microscope to determine the ductile or brittle behavior after the failure was examined.El presente trabajo de grado se realizó con el propósito de establecer el efecto que ejercen los tratamientos térmicos de envejecimiento sobre las propiedades mecánicas y conductividad eléctrica en una aleación de aluminio de la serie 6xxx. Para 3 estados diferentes de tratamiento térmico se realizaron ensayos de tensión donde se alcanzaron resistencias a la tracción superiores a 200 MPa, ensayos de microdureza en el que se obtuvieron durezas superiores a 70 Hv, ensayos de calorimetría diferencial de barrido y resistividad eléctrica. Como resultado adicional de los ensayos de tensión, se examinó el tipo de fracturas por medio del microscopio de barrido para determinar el comportamiento dúctil o frágil tras la falla.Universidad de San Buenaventura - Cal

    Caracterización mecánica y eléctrica de la aleación de aluminio 6201 de uso en la fabricación de cables eléctricos

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    This degree work was performed with the purpose of establishing their effect aging heat treatments on the mechanical properties and electrical conductivity aluminum alloy 6xxx series. For 3 different heat treatment states of tension tests where strengths above 200 MPa, microhardness tests in which greater than 70 Hv, tests and differential scanning calorimetry were obtained resistivity traction hardnesses were achieved they were performed. As a further result of the stress tests, the type of fractures through scanning microscope to determine the ductile or brittle behavior after the failure was examined.El presente trabajo de grado se realizó con el propósito de establecer el efecto que ejercen los tratamientos térmicos de envejecimiento sobre las propiedades mecánicas y conductividad eléctrica en una aleación de aluminio de la serie 6xxx. Para 3 estados diferentes de tratamiento térmico se realizaron ensayos de tensión donde se alcanzaron resistencias a la tracción superiores a 200 MPa, ensayos de microdureza en el que se obtuvieron durezas superiores a 70 Hv, ensayos de calorimetría diferencial de barrido y resistividad eléctrica. Como resultado adicional de los ensayos de tensión, se examinó el tipo de fracturas por medio del microscopio de barrido para determinar el comportamiento dúctil o frágil tras la falla.Universidad de San Buenaventura - Cal

    <i>Distributed computing: Principles and applications</i>. M. L. Liu

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    Such as the author states in the first pages, this book is the result of several years of teaching the involved topics at the California Polytechnic State University (Cal Poly), San Luis Obispo, California, U.S.A, to undergraduates. This characteristic can be observed in the organization of the book, in each of the chapters, and in the hands-on orientation of each of the presented topics.\n\n(Párrafo extraído del texto a modo de resumen)</i

    <i>Distributed computing: Principles and applications</i>. M. L. Liu : Addison-Wesley, 2004. ISBN 0-201-79644-9

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    Such as the author states in the first pages, this book is the result of several years of teaching the involved topics at the California Polytechnic State University (Cal Poly), San Luis Obispo, California, U.S.A, to undergraduates. This characteristic can be observed in the organization of the book, in each of the chapters, and in the "hands-on" orientation of each of the presented topics. (Párrafo extraído del texto a modo de resumen)Facultad de Informátic

    <i>Distributed computing: Principles and applications</i>. M. L. Liu : Addison-Wesley, 2004. ISBN 0-201-79644-9

    No full text
    Such as the author states in the first pages, this book is the result of several years of teaching the involved topics at the California Polytechnic State University (Cal Poly), San Luis Obispo, California, U.S.A, to undergraduates. This characteristic can be observed in the organization of the book, in each of the chapters, and in the "hands-on" orientation of each of the presented topics. (Párrafo extraído del texto a modo de resumen)Facultad de Informátic

    Melhoramento de propriedades térmicas de uma argamassa de cal por ativação alcalina

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    This dissertation was developed as proposed by company Domínio Do Ligante – Argamassas Tradicionais Pré-doseadas Lda. In cooperation with the Department of Geoscience of University of Aveiro, granting the author the conclusion of the second cycle of studies in Geomaterials and Geological Resources by the aforementioned institution. The main goal of this study is to improve the thermal insulation properties, mainly thermal conductivity, of lime-based mortar ‘DDL.ECM Projeção’ through alkali activation instead of traditional hydration. As a secondary objective, the study intends to evaluate the technical viability of the product of the experiment in respect to its mechanical properties, capillary absorption and response to acid dissolution. To fulfill these goals, four laboratory trials took place. In each trial, a control group and two test groups were prepared by mixing the mortar with aqueous solutions of sodium hydroxide and potassium hydroxide, respectively, at a concentration of 3 molar, with the control group being hydrated with water only. The mixtures are then cast in molds and left to cure until demolding. After this, the specimens are to be teste according to the parameters of the study. The four experimental procedure trials were incapable of producing a sufficient number of viable specimens for testing given their fragility and inconsistency. These results rend impossible de measuring of the properties at study in order to resolve the problem question, as such, the main goal of the dissertation is inconclusive. The secondary goal, however, is achieved, affirming the technical unviability of alkali activation of DDL.ECM Projeção by the methods employed in this procedure. It is concluded that the CaO content in the mortar is inadequate for this type of process when compared to the inferior content of either SiO2 and Al2O3; not allowing the formation of a stable hybrid systemEsta dissertação foi desenvolvida como proposto pela empresa Domínio Do Ligante – Argamassas Tradicionais Pré-doseadas Lda. em cooperação com o Departamento de Geociências da Universidade de Aveiro, concedendo ao autor a conclusão do segundo ciclo de estudos em Geomateriais e Recursos Geológicos pela instituição supracitada. O objetivo principal deste estudo é melhorar as propriedades de isolamento térmico, nomeadamente a condutividade térmica, da argamassa de cal ‘DDL.ECM Projeção’ procedendo à ativação alcalina da mesma ao invés da hidratação tradicional. Como objetivo secundário pretende-se avaliar ainda a viabilidade técnica do produto desta experiência no que diz respeito a propriedades mecânicas, absorção por capilaridade e resposta à dissolução ácida. Para cumprir estes objetivos, quatro ensaios laboratoriais foram levados a cabo. Em cada ensaio, um grupo de controlo e dois grupos de teste foram preparados misturando a argamassa com soluções aquosas de hidróxido de sódio e hidróxido de potássio, respetivamente, a uma concentração de 3 molar, sendo que o grupo de controlo foi apenas hidratado com água. As misturas foram então aplicadas em moldes e deixadas a curar até ao desmolde. Após isto, os espécimes seriam testados de acordo com os parâmetros em causa. Os quatro ensaios do procedimento experimental não foram capazes de produzir um suficiente número de espécimes viáveis para testar dada a fragilidade ou inconsistência dos mesmos. Estes resultados tornam impossível a medição das propriedades em estudo para resolução da questão problema, sendo o objetivo principal da dissertação inconclusivo. Cumpre-se, no entanto, o objetivo secundário afirmando a inviabilidade técnica da ativação alcalina da argamassa DDL.ECM Projeção pelos métodos utilizados neste procedimento. Conclui-se que o conteúdo de CaO da argamassa é inadequado para a realização deste tipo de processo quando comparado com o muito inferior conteúdo quer de SiO2 quer de Al2O3; não permitindo a criação de um sistema híbrido estávelMestrado em Geomateriais e Recursos Geológico

    Formulation and evaluation of a project for the production and marketing of creatine-based dietary supplements in Bogotá D.C.

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    Este proyecto tiene como objetivo establecer la viabilidad comercial, técnica y financiera para la producción y comercialización de suplementos dietarios basados en la materia prima de creatina en la ciudad de Bogotá D.C. Para lograr los objetivos se realizó inicialmente un estudio comercial el cual consta de un análisis detallado del mercado local, identificando nichos específicos, implementando estrategias de marketing diferenciadas y colaborando con profesionales de la salud para respaldar la calidad y seguridad de los productos. En cuanto al estudio técnico, se realizó un análisis detallado de los requisitos y elementos técnicos necesarios para la producción y distribución eficiente de los suplementos en donde se emplearon herramientas como el cálculo de la capacidad, cursograma analítico, distribución de planta y diagramas de flujo del proceso de producción para garantizar una operación efectiva y contar con la maquinaria, equipos y espacios adecuados para responder a la demanda calculada en el estudio comercial. Por su parte, el estudio financiero incluye la identificación de ingresos, costos, gastos, depreciación y la generación de flujos de caja, además del cálculo de indicadores como la Tasa Interna de Retorno (TIR) del 32%, el Valor Actual Neto (VAN) positivo de 264.143.230yunarelacioˊnbeneficiocostode1.76.Conbaseenlosresultadosdelosestudioscomercial,teˊcnicoyfinancierosedeterminalaviabilidaddelaideadenegocioysuscaracterıˊsticasnecesarias.IngenieroIndustrialPregradoThisprojectaimstoestablishthecommercial,technical,andfinancialviabilityfortheproductionandmarketingofdietarysupplementsbasedontherawmaterialcreatineinthecityofBogotaˊD.C.Toachievetheseobjectives,acommercialstudywasinitiallyconducted,consistingofadetailedanalysisofthelocalmarket,identifyingspecificniches,implementingdifferentiatedmarketingstrategies,andcollaboratingwithhealthcareprofessionalstosupportproductqualityandsafety.Regardingthetechnicalstudy,adetailedanalysisoftherequirementsandtechnicalelementsnecessaryfortheefficientproductionanddistributionofthesupplementswascarriedout.Toolssuchascapacitycalculations,analyticalflowcharts,plantlayouts,andproductionprocessflowdiagramswereusedtoensureeffectiveoperationsandhavetheappropriatemachinery,equipment,andspacetomeetthedemandestimatedinthecommercialstudy.Thefinancialanalysisincludestheidentificationofrevenue,costs,expenses,depreciation,andcashflowgeneration,inadditiontothecalculationofindicatorssuchasanInternalRateofReturn(IRR)of32264.143.230 y una relación beneficio costo de 1.76. Con base en los resultados de los estudios comercial, técnico y financiero se determina la viabilidad de la idea de negocio y sus características necesarias.Ingeniero IndustrialPregradoThis project aims to establish the commercial, technical, and financial viability for the production and marketing of dietary supplements based on the raw material creatine in the city of Bogotá D.C. To achieve these objectives, a commercial study was initially conducted, consisting of a detailed analysis of the local market, identifying specific niches, implementing differentiated marketing strategies, and collaborating with healthcare professionals to support product quality and safety. Regarding the technical study, a detailed analysis of the requirements and technical elements necessary for the efficient production and distribution of the supplements was carried out. Tools such as capacity calculations, analytical flowcharts, plant layouts, and production process flow diagrams were used to ensure effective operations and have the appropriate machinery, equipment, and space to meet the demand estimated in the commercial study. The financial analysis includes the identification of revenue, costs, expenses, depreciation, and cash flow generation, in addition to the calculation of indicators such as an Internal Rate of Return (IRR) of 32%, a positive Net Present Value (NPV) of 264,143,230, and a benefit-cost ratio of 1.76. Based on the results of the commercial, technical, and financial studies, the viability of the business idea and its necessary characteristics are determined
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