Global ETD Search

1	Estudio y diseño del módulo de transplante de una transplantadora para suelos acolchados en el cultivo de la fresa Gutiérrez Vaca, César 04 August 2008 (has links) Se propone y estudia la viabilidad del trasplante en suelo a punto de marchitamiento permanente (PMP) con riego sectorizado posterior, con el objeto de diseñar y construir una trasplantadora de plantas a raíz desnuda para suelos acolchados, que realice el trasplante en las condiciones mencionadas. Se realiza un estudio donde las plantas de fresa son sometidas a estrés hídrico para determinar el tiempo máximo permitido para que la nascencia no se vea afectada. También se estudia el corte parcial de raíz que facilite el trasplante mecánico. Se han estudiado diferentes combinaciones en el corte del film de plástico haciendo intervenir los siguientes factores: tipo de cuchilla; velocidad de corte, constante o caída libres; masa de la cuchilla cortadora; grosor del plástico; textura, humedad y compactación del suelo de asiento. Del estudio del proceso de corte de plástico sobre suelo, se ha deducido la influencia de esos factores en la calidad y eficiencia del corte, la energía requerida y el desplazamiento ocasionado hasta la rotura. En base a los resultados obtenidos en los estudios anteriores, se ha diseñado y construido un prototipo de módulo de trasplante, y un dispositivo de pruebas. Se evaluaron el desempeño del cortador, gancho y pinza, componentes principales del módulo. El módulo presenta un comportamiento satisfactorio en términos generales, comprobando la viabilidad técnica del concepto propuesto. / Gutiérrez Vaca, C. (2008). Estudio y diseño del módulo de transplante de una transplantadora para suelos acolchados en el cultivo de la fresa [Tesis doctoral]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/2922 Trasplantadora Trasplante Plantas Fresa Raíz Corte Plástico Acolchado Riego Estrés Hídrico Humedad Compactación Suelo Pinza INGENIERIA AGROFORESTAL 310201 - Mecanización agrícola 331315 - Diseño de máquinas
2	"You've Got to Be Carefully Taught": Reflections on War, Imperialism and Patriotism in America's South Pacific Butler, Jayna D. 09 November 2013 (has links) (PDF) Underneath the romance, comedy and exoticism, South Pacific is a story that questioned core American values, exploring issues of race and power at a time when these topics were intensely relevant-the original opened just four years post WWII, on the heels of Roosevelt's aggressive expansionist response to domestic instabilities. Much has been written about the depiction of war and racial prejudice in South Pacific. However, examining such topics in the context of their cultural and political moment (both in 1949 and 2008) and through the lens of Terry Eagleton's unique take on morality, is not only a fascinating study, but an intensely relevant and unchartered endeavor. This work concerns the evolution of an American code of ethics as it has been reflected and constructed in both Broadway productions of Roger and Hammerstein's South Pacific (c.1949, 2008). Specifically, it examines the depiction of WWII, America's imperialistic foreign policy, and the function of American patriotism in light of Terry Eagleton's theories surrounding an evolving code of ethics in 20th/21st century America. By so doing, this thesis uncovers answers to the following questions: What were the cultural and political forces at work at the time South Pacific was created (both in 1949 and 2008), and how did these forces influence the contrasting depictions of war, imperialism and patriotism in each version of the musical? In what ways were these productions reflective of a code of ethics that evolved from what Eagleton would classify as moral realism (prescriptive of behavior) to moral nihilism (reflective of behavior)? How did the use of this increasingly reflexive moral code make this politically controversial musical more palatable, and therefore commercially viable during the contrasting political climates of WWII and the recent war on Iraq? Determining answers to questions such as these enables us as a society to look back on our history-on our mistakes and triumphs-and recognize our tendency to find pragmatic justification for our actions rather than acknowledging the possibility of the existence of objective truth, which remains unchanged through time and circumstance. South Pacific war American expansionism imperialism prejudice American patriotism ethical moral nihilism moral realism relativism evolution code of ethics pragmatic justification objective truth historiography World War II war on Iraq musical theatre Broadway New York Terry Eagleton Richard Rodgers Oscar Hammerstein Joshua Logan Bartlet Sher Mary Martin Ezio Pinza Kelli O'Hara Paul Szot Film and Media Studies Theatre and Performance Studies

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Estudio y diseño del módulo de transplante de una transplantadora para suelos acolchados en el cultivo de la fresa

"You've Got to Be Carefully Taught": Reflections on War, Imperialism and Patriotism in America's South Pacific