Temperature-dependent diffuse reflectance spectroscopy of plasma-sprayed Cr-doped α-alumina using supercontinuum laser illumination and CO_2 laser heating
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Relatively good GaAs solar cells can be made from poor quality substrates by making the junction deep (more than 1 micron) instead of shallow and by leaching both the p and n GaAs regions during the growth process. Air-mass-zero efficiencies of 14.7% (19% AM1) have been obtained from substrates with starting substrate thickness of 0.6 micron.
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Engineering technology programs are characterized by their focus on application and practice, and by their approximately 50/50 mix of theory and laboratory experience. Engineering technology graduates are employed across the technological spectrum and are often found in areas that deal with application, implementation, and production. Yet we know very little about the communications practices and information-use skills of engineering technology students. In this paper, we report selected results of an exploratory study of engineering technology students enrolled in three U.S. institutions of higher education. Data are presented for the following topics: career goals and aspirations; the importance of, receipt of, and helpfulness of communications and information-use skills instruction; collaborative writing; use of libraries; and the use of electronic (computer) networks.
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