5,554 research outputs found

    Mechanism of the photovoltaic effect in 2-6 compounds Progress report, 1 Oct. - 31 Dec. 1969

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    Electronic transitions involved in photocapacitance at Cd2S-CdS heterojunctio

    Mechanism of the photovoltaic effect in 2-6 compounds Progress report, 1 Apr. - 30 Sep. 1967

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    Mechanism for photovoltaic effects in heterojunctions in group 2 to 6 compounds with metallic or quasimetallic barrier layer

    Mechanism of the photovoltaic effect in 2-6 compounds Progress report, 1 Oct. 1967 - 31 Mar. 1968

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    Mechanisms of photovoltaic effects in heterojunctions in group 2 to 6 compounds with metallic or quasimetallic barrier layer

    Measurement of temperature profiles in hot gases and flames

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    Computer program was written for calculation of molecular radiative transfer from hot gases. Shape of temperature profile was approximated in terms of simple geometric forms so profile could be characterized in terms of few parameters. Parameters were adjusted in calculations using appropriate radiative-transfer expression until best fit was obtained with observed spectra

    Mechanism of the photovoltaic effect in II-VI compounds Progress report, 1 Jan. - 31 Mar. 1970

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    Trapped charging and photovoltaic performance of Cu2S-CdS cell including heat treatment effect

    Textbook Coverage of the Destruction of the Armenians

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    Abstract            Despite its importance as the event that established that the 20th century would be known as “the age of genocide,” the destruction of the Armenians that occurred between the mid-1890s and 1923 is given marginal coverage in contemporary high school history textbooks. This article critiques that coverage, identifying the overall flow of the information that is presented while noting several instances in which information is presented in an underdeveloped, confusing, or contradictory manner. It then makes several suggestions about topics that should be included in expanded coverage of the Armenian situation, thus ensuring that students develop accurate perspectives about this critical event.Key Words            History, study and teachingGenocide            Ethnic conflictTextbooks and teaching history            Teaching controversial issue

    A Proposed Industrial Arts Guide for Kusaie High School, Eastern Caroline Islands

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    The purpose of the study is to provide the writer an opportunity to propose an Industrial Arts guide for Kusaie High School, Trust Territory of the Pacific Islands. This particular guide has never been proposed for this high school. Kusaie High School is rapidly enlarging its enrollment, expanding its staff, and planning a new campus. To educate adequately the increasing number of students and effectively plan the new campus, an Industrial Arts guide is a paramount necessity

    Mechanism of the photovoltaic effects in 2-4 compounds Progress report, 1 Apr. - 30 Sep. 1968

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    Current gain mechanism in copper sulfide-cadmium sulfide diode upon photoexcitation in presence of reverse bia

    Periodic Modulation of Extraordinary Optical Transmission through Subwavelength Hole Arrays using Surrounding Bragg Mirrors

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    The enhanced light transmission through an array of subwavelength holes surrounded by Bragg mirrors is studied, showing that the mirrors act to confine the surface plasmons associated with the Extraordinary Optical Transmission effect, forming a surface resonant cavity. The overall effect is increased light transmission intensity by more than a factor of three beyond the already enhanced transmission, independent of whether the Bragg mirrors are on the input or the output side of the incident light. The geometry of the Bragg mirror structures controls the enhancement, and can even reduce the transmission in half. By varying these geometric parameters, we were able to periodically modulate the transmission of light for specific wavelengths, consistent with the propagation and interference of surface plasmon waves in a resonant cavity. FDTD simulations and a wave propagation model verify this effect.Comment: 9 pages, 5 figure
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