Results 301 to 310 of about 274,834 (357)
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Surface differential reflectivity spectroscopy of semiconductor surfaces
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 1987An overview of the method of surface differential reflectivity (SDR) for the study of semiconductor surfaces is presented. This includes the principles of the technique, the experimental apparatus, and some theoretical considerations concerning the connection of SDR data with the microscopic properties of the surface.
Selci S +5 more
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Influences Of Surface Reflection On Diffuse Reflectance Measurements
SPIE Proceedings, 1989Abstract When the diffuse reflectance of a compact, i.e. non-particulate solid sample is measured, regular reflection at the surface cannot be avoided: external reflection occurs when the sample is irradiated, and internal reflection occurs when radiation emerges from the sample.
E.H. Korte, H. Staat
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2019
This chapter examines the use of Gothic symbols, settings and archetypes in the context of gender. It pays particular attention to the use of the double, the Other, and associated symbols such as mirrors and masks, arguing that these are used to explore the limits of female identity and to interrogate issues of control and change.
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This chapter examines the use of Gothic symbols, settings and archetypes in the context of gender. It pays particular attention to the use of the double, the Other, and associated symbols such as mirrors and masks, arguing that these are used to explore the limits of female identity and to interrogate issues of control and change.
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Venus: Global Surface Radar Reflectivity
Science, 1982Observations of the surface of Venus, carried out by the Pioneer Venus radar mapper at a wavelength of 17 centimeters, reveal a global mean reflectivity at normal incidence of 0.13 ± 0.03. Over the surface, variations from a low of 0.03 ± 0.01 to a high of 0.4 ± 0.1 are found, with Theia Mons, previously identified as possibly volcanic, showing a value
G H, Pettengill, P G, Ford, S, Nozette
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Infrared Reflectance from Mat Surfaces
Applied Optics, 1968A general theory is presented which segregates the rays composing the total reflectance from a mat surface according to their dependence on the intrinsic absorption coefficient. It is tested against experimental data obtained from samples of two materials (calcite and gypsum) which display a range of absorption band intensities over the 4-14-micro ...
R K, Vincent, G R, Hunt
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Toric Surfaces with Reflection Symmetries
Proceedings of the Steklov Institute of Mathematics, 2022zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Reflective surfaces for panoramic imaging
Applied Optics, 1997A family of reflective surfaces is presented that, when imaged by a camera, can capture a global view of the visual environment. By using these surfaces in conjunction with conventional imaging devices, it is possible to produce fields of view in excess of 180 degrees that are not affected by the distortions and aberrations found in refractive wide ...
Chahl, JS, Srinivasan, MV
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Canadian Journal of Philosophy, 1992
Can there be a first-order, philosophical or psychological theory that explains all the facts of surface perception? By ‘first-order’ I mean a theory about the constituents of what J.J. Gibson called ‘the ecological environment’; and by ‘surface perception,’ I mean the perception of the surfaces of any of those ecological constituents that have ...
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Can there be a first-order, philosophical or psychological theory that explains all the facts of surface perception? By ‘first-order’ I mean a theory about the constituents of what J.J. Gibson called ‘the ecological environment’; and by ‘surface perception,’ I mean the perception of the surfaces of any of those ecological constituents that have ...
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2013
The second chapter provides a brief review of existing work on the acquisition and modeling of opaque surfaces. First, various approaches are discussed on acquisition of a material’s surface reflectance, including methods based on direct measurement and techniques that take advantage of angular or spatial coherence in the data.
Yue Dong, Stephen Lin, Baining Guo
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The second chapter provides a brief review of existing work on the acquisition and modeling of opaque surfaces. First, various approaches are discussed on acquisition of a material’s surface reflectance, including methods based on direct measurement and techniques that take advantage of angular or spatial coherence in the data.
Yue Dong, Stephen Lin, Baining Guo
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Conversion of sub-surface reflectances to above-surface MERIS reflectance
International Journal of Remote Sensing, 2009Factors for converting sub-surface reflectances to above-surface MERIS reflectances have been determined both as analytic functions and average numbers for solar zenith angles in the range 30°–75°, wind speeds up to 10 m s−1, and the spectral domain 400–700 nm. The conversion factors have been obtained by numerical and statistical computations based on
Aas, E. +2 more
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