Loren C Chang

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Three polymorphs (forms I-III), a monohydrate (form S2), and three new solvates [4:1 hydrate (form S1), monohydrate (form S3), and methanol half-solvate (form S4)] were isolated and characterized by X-ray powder diffractometry (XRPD), IR spectroscopy, differential scanning calorimetry (DSC), hot stage microscopy, solution calorimetry, and their dissolution(More)
Ž . The electrical resistivities of electron beam deposited and sputter deposited chromium thin films 25–500 nm on glass and alumina substrates are correlated with the structural characteristics of the films determined by X-ray diffraction, scanning electron microscope and Auger electron spectrometer. The resistivities of as-deposited chromium films on(More)
Dissipating planetary waves in the mesosphere/lower thermosphere (MLT) region may cause changes in the background dynamics of that region, subsequently driving variability throughout the broader thermosphere/ionosphere system via mixing due to the induced circulation changes. We report the results of case studies examining the possibility of such coupling(More)
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