1,720,953 research outputs found
Design of Concrete Pavement Based on Geotechnical Parameters Obtained from a Soil Study Applied to a Road Section in the City of Floridablanca, Santander
No full textDigitalEl presente proyecto corresponde al desarrollo del trabajo final de grado de la Especialización en Geotecnia Ambiental y tiene como objetivo el diseño de un pavimento rígido (en concreto) para un tramo vial ubicado en la calle 15 No 4ª de Floridablanca, Santander, a partir del análisis de parámetros geotécnicos obtenidos mediante estudios de suelos. El trabajo se fundamenta en la aplicación de los conocimientos adquiridos durante el Diplomado en Aplicaciones de la Geotecnia Para Soluciones Sostenibles: Diseño de Pavimentos y Geomecánica de Sólidos en Minería.
La metodología empleada incluye la recopilación y análisis de información geotécnica proveniente de ensayos de campo y laboratorio, tales como la caracterización física y mecánica del suelo de subrasante. Estos parámetros permiten evaluar el comportamiento del suelo frente a las cargas vehiculares y constituyen la base para el diseño estructural del pavimento rígido.
El diseño del pavimento se realiza conforme a los lineamientos establecidos en el Manual de Diseño de Pavimentos del INVIAS, integrando criterios técnicos, ambientales y de sostenibilidad, con el fin de proponer una solución estructural durable y adecuada a las condiciones del tramo analizado. El proyecto no contempla la ejecución de la obra, limitándose al análisis técnico y al diseño del pavimento.
Finalmente, el desarrollo del presente trabajo evidencia la importancia de la geotecnia ambiental en la planificación y diseño de infraestructuras viales, destacando el uso eficiente de los recursos y la adecuada interacción entre el suelo y la estructura del pavimento como elementos clave para la sostenibilidad de los proyectos de ingeniería civil.This project corresponds to the development of the final degree work for the Specialization in Environmental Geotechnics and aims to design a rigid pavement (concrete pavement) for a specific road section, based on the analysis of geotechnical parameters obtained through soil studies. The work is supported by the application of the knowledge acquired during the Diploma Course in Applications of Geotechnics for Sustainable Solutions: Pavement Design and Solid Geomechanics in Mining.
The methodology employed includes the collection and analysis of geotechnical information derived from field and laboratory tests, such as the physical and mechanical characterization of the subgrade soil. These parameters allow the evaluation of soil behavior under vehicular loads and constitute the basis for the structural design of the rigid pavement.
The pavement design is carried out in accordance with the guidelines established in the INVIAS Pavement Design Manual, integrating technical, environmental, and sustainability criteria in order to propose a durable structural solution appropriate to the conditions of the analyzed road section. The project does not include construction execution, being limited exclusively to technical analysis and pavement design.
Finally, the development of this work highlights the importance of environmental geotechnics in the planning and design of road infrastructure, emphasizing the efficient use of resources and the proper interaction between soil and pavement structure as key elements for the sustainability of civil engineering projects.Introducción 21
Objetivos 22
Objetivo General 22
Objetivos Específicos 22
Generalidades 23
Área de Estudio 23
Condiciones Actuales del Pavimento 24
Características del Tramo Vial 25
Justificación del Diseño Propuesto 26
Marco Teórico 27
Geotecnia Aplicada al Diseño de Pavimentos 27
Pavimentos Rígidos 27
Componentes Estructurales del Pavimento Rígido 27
Subrasante y su Importancia en el Diseño 28
Parámetros Geotécnicos Utilizados en el Diseño 28
Metodología INVIAS Para el Diseño de Pavimentos Rígidos 29
Importancia del Diseño Adecuado del Pavimento Rígido 29
Marco Referencial 30
Estudios Previos 30
Referentes Técnicos 30
Relación con el Presente Estudio 31
Marco Legal 32
Metodología 33
Tipo y Enfoque del Estudio 33
Fuentes de Información 34
Exploración Geotécnica 34
Ensayos de Laboratorio 34
Interpretación y Caracterización del Suelo 35
Condiciones Generales de Diseño 36
Diseño Estructural del Pavimento Rígido 36
Análisis y Validación del Diseño 36
Resultados Estudios Geotécnicos 36
Descripción General del Suelo 37
Resultados de los Ensayos de Laboratorio 38
Parámetros Geotécnicos Obtenidos 39
Posibilidad de Suelos Expansivos 39
Medidas Preventivas 41
Alteración del Suelo Expansivo 42
Elusión de los Suelos Expansivos 42
Mitigación Tipo Estructural 43
Susceptibilidad a la Licuación 43
Método Determinístico Evaluación Potencial de Licuefacción 45
Diseño de Pavimentos 46
Variable Tránsito y Periodo de Diseño 46
Clima y Temperatura 47
Sub Rasante y CBR de Diseño 51
Sub Base Granular SBG 52
Base Granular BG 54
Diseño de Estructura de Pavimento Rígido por la Metodología INVIAS y APCA 56
Transito 56
Sub Rasante de Acuerdo a Resistencia CBR= 5.0 57
Material de Soporte Para el Pavimento de Concreto 57
Resistencia del Concreto 58
Sistema de Transferencia de Carga 58
Diseño de Tramo en Pavimento de Concreto 59
Sellado de las Juntas 64
Diseño Geométrico de Juntas 64
Acabados de las Losas 67
Curado de las Losas 67
Conclusiones 69
Recomendaciones 71
Referencias Bibliográficas 73EspecializaciónEspecialista en Geotecnia Ambienta
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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