953 resultados para Alfonso V, King of Aragon, 1396-1458.
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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"The text ... from MacBeth [v. 31] onwards has been edited by Mr. Walter Raleigh" note in v. 38.
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Appendices: I. Sanskrit words denoting numbers with their ordinary and numerical signification.--II. Sanskrit words used in the translation and their explanation.--III. Answers to problems.--V. Tables of measures.
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Mode of access: Internet.
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Mode of access: Internet.
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Originally published (1751-66) as separate works. The life of Peters appeared without the author's name.
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Verso of final leaf blank.
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From Jan. 1826-July 1830 title reads: American journal of education. In August 1830 the title was changed to American Annuals of Education and instruction. The numbers for August-Dec. 1830, however, were issued both under this later title (as 3d ser., b.1, no 1-4) and under the title American journal and annals of education and instruction, new ser., v.1 of the 3d ser. They are preceded by 24 pages ("Editor's address" and "Sketches of Hofwyl") reprinted from the numbers for Aug.-Dec. 1830) In 1838 the title was shortened to American annuals of education. Editors: 1826-29, Williams Russell.--1830-37, W.C. Woodbridge.--1837--38 W.A. Alcott.
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Mode of access: Internet.
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Mode of access: Internet.
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El presente artículo se refiere a la evolución que experimentó la villa de Chillón en los decenios centrales del siglo XIV. Chillón, perteneciente al término de Córdoba, fue señorío de relevantes personajes de la época. Entre 1344 y 1350, perteneció a Bernardo de Cabrera, privado de Pedro IV de Aragón. Posteriormente, pasó a poder de Juan Alfonso de Alburquerque, que desempeñó la misma función en la Corte del rey Pedro de Castilla. Reintegrada posteriormente a la jurisdicción de Córdoba, fue entregada por Enrique II a su hermano don Sancho, que no logró vencer la oposición de la ciudad y no llegó realmente a posesionarse de la villa, la cual terminó por vender a Diego Fernández de Córdoba, alguacil mayor de Córdoba, en 1370.
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Thin-film photovoltaics have provided a critical design avenue to help decrease the overall cost of solar power. However, a major drawback of thin-film solar cell technology is decreased optical absorption, making compact, high-quality antireflection coatings of critical importance to ensure that all available light enters the cell. In this thesis, we describe high efficiency thin-film InP and GaAs solar cells that utilize a periodic array of nanocylinders as antireflection coatings. We use coupled optical and electrical simulations to find that these nanophotonic structures reduce the solar-weighted average reflectivity of InP and GaAs solar cells to around 1.3 %, outperforming the best double-layer antireflection coatings. The coupling between Mie scattering resonances and thin-film interference effects accurately describes the optical enhancement provided by the nanocylinders. The spectrally resolved reflectivity and J-V characteristics of the devices under AM1.5G solar illumination are determined via the coupled optical and electrical simulations, resulting in predicted power conversion efficiencies > 23 %. We conclude that the nanostructured coatings reduce reflection without negatively affecting the electronic properties of the InP and GaAs solar cells by separating the nanostructured optical components from the active layer of the device.