Suchergebnisse

Intro -- Title Page -- Copyright Page -- Contents -- Preface -- "A Day Made of Glass" -- Macbeth -- Minority Report -- Microscopic vision -- Telescopic vision -- Earrings and landscapes -- Photography -- Shakespeare's sonnets -- "Heart of Glass" -- Sea glass -- Google Glass -- Trademark -- Microsoft HoloLens -- Strange Days -- A glass, darkly -- Surfaces -- "A World of Glass" -- Postscript: What's in my pocket? -- Further reading -- Acknowledgments -- Notes -- Index

Electron paramagnetic resonance (EPR) is a well-established spectroscopic technique for electronic structure characterization of rare-earth ion impurities in crystalline and amorphous hosts. EPR spectra of erbium-doped glass matrices and nanocomposites can provide information about local structure variations induced by changes in chemical composition or crystallization processes. Characterization possibilities of Er3+ ions in glasses and glass ceramics including direct EPR measurements, indirect investigations via secondary paramagnetic probes, and optically detected magnetic resonance techniques are considered in this article. --- / / / --- This is the pre-print of the following article: A. Antuzevics, EPR characterization of erbium in glasses and glass ceramics, Low Temperature Physics 46, 1149 (2020), which has been published at https://aip.scitation.org/doi/10.1063/10.0002465 under license by AIP Publishing. This article may be used for non-commercial purposes in accordance with AIP Publishing Terms and Conditions for Sharing and Self-Archiving. ; The author expresses gratitude to Guna Krieke and Professor Uldis Rogulis for valuable discussions during the preparation of this article. This research is funded by the Latvian Council of Science, project "Novel transparent nano-composite oxyfluoride materials for optical applications," Project No. LZP-2018/1-0335. Institute of Solid State Physics, University of Latvia as the Center of Excellence has received funding from the European Union's Horizon 2020 Framework Programme H2020-WIDESPREAD-01-2016-2017-TeamingPhase2 under grant agreement No. 739508, project CAMART2.

A thorough industry analysis is of utmost importance for a study on the impact of technological changes on industry structure. This book evaluates the consequences of a vaguely chosen level of an industry analysis. Too broad a definition of the industry may disaggregate sub-industries, processing industries and international aspects. This is illustrated by revisiting an industry study upon which the dominant design model was based. Readers will see and understand the consequences of too broadly defined industries together with quantitative research approach can have. The book argues that the nature of the industry should define the level of the analysis. This is done by revisiting the flat glass industry study, on which Anderson and Tushman's (1990) dominant design model is partly based. In their study Anderson and Tushman defined the flat glass industry based on four-digit SIC codes. It is argued that this definition was too broad and it disaggregated important sub-industries, processing industries and international aspects. This study uses more accurate analysis in five-digit SIC codes. The empirical findings of this study and Anderson and Tushman's study are different. Their broader industry definition revealed only the flat glass industry not two sub-industries: plate glass and sheet glass. According to this study the nature of the industry should define the level of the analysis and performance parameter should defined be based on effectiveness instead of efficiency of the innovation. As a consequence of these clarifications this study regards contrary to Anderson and Tushman float glass as the dominant design

This essay by historian Matthew Klingle compares the work of Carleton Watkins, a pioneer in early photography, and Michael Kolster, a contemporary photographer. Like his predecessor, Kolster uses the wet-plate photographic process to create ambrotypes: handmade images made on glass. Watkins's images, made in the late-nineteenth century, helped to sell scenic, monumental California and the West to the nation. In contrast, Kolster's photographs of the Los Angeles River, a degraded and often ignored urban waterway, suggest how older photographic techniques might be employed to create new aesthetics of place freed from the confines of purity and beauty.