1,263 research outputs found
Future Books: Industry, Government, Science, Arts, Vol. IV Transformation
volumes illustrations (some color) portraits 30 cm. Editor: Marjorie B. Milne. Produced by Adprint. Cover illustration and design by G.A. Adams. Printed in photogravure by Harrison & Sons Ltd. London. Cover, binding and offset printing by Jerrold & Sons Ltd. Norwich. Advertisements in letterpress by W.S. Cowell Ltd. Ipswich; Alabaster Passmore & Sons Ltd. Maidstone; Thos. Forman & Sons Ltd. Nottingham. The photogravure and offset parts have been printed on Mellotex Paper made by Tullis Russell & Co. Ltd. Markinch Scotland. Information graphics. Casebinding. Library has Volume I. Overture & volume IV. Transformation.https://digitalcommons.risd.edu/specialcollections_books_graphicdesign/1006/thumbnail.jp
Future Books: Industry, Government, Science, Arts, Vol. I Overture
volumes illustrations (some color) portraits 30 cm. Editor: Marjorie B. Milne. Produced by Adprint. Cover illustration and design by G.A. Adams. Printed in photogravure by Harrison & Sons Ltd. London. Cover, binding and offset printing by Jerrold & Sons Ltd. Norwich. Advertisements in letterpress by W.S. Cowell Ltd. Ipswich; Alabaster Passmore & Sons Ltd. Maidstone; Thos. Forman & Sons Ltd. Nottingham. The photogravure and offset parts have been printed on Mellotex Paper made by Tullis Russell & Co. Ltd. Markinch Scotland. Information graphics. Casebinding. Library has Volume I. Overture & volume IV. Transformation.https://digitalcommons.risd.edu/specialcollections_books_graphicdesign/1005/thumbnail.jp
X-ray scattering from surfaces: discrete and continuous components of roughness
Incoherent surface scattering yields a statistical description of the
surface, due to the ensemble averaging over many independently sampled volumes.
Depending on the state of the surface and direction of the scattering vector
relative to the surface normal, the height distribution is discrete,
continuous, or a combination of the two. We present a treatment for the
influence of multimodal surface height distributions on Crystal Truncation Rod
scattering. The effects of a multimodal height distribution are especially
evident during in situ monitoring of layer-by-layer thin-film growth via Pulsed
Laser Deposition. We model the total height distribution as a convolution of
discrete and continuous components, resulting in a broadly applicable
parameterization of surface roughness which can be applied to other scattering
probes, such as electrons and neutrons. Convolution of such distributions could
potentially be applied to interface or chemical scattering. Here we find that
this analysis describes accurately our experimental studies of SrTiO3
annealing and homoepitaxial growth.Comment: 15 pages, 7 figure
Nearly strain-free heteroepitaxial system for fundamental studies of pulsed laser deposition: EuTiO3 on SrTiO3
High quality epitaxial thin-films of EuTiO3 have been grown on the (001)
surface of SrTiO3 using pulsed laser deposition. In situ x-ray reflectivity
measurements reveal that the growth is two-dimensional and enable real-time
monitoring of the film thickness and roughness during growth. The film
thickness, surface mosaic, surface roughness, and strain were characterized in
detail using ex situ x-ray diffraction. The thicnkess and composition were
confirmed with Rutherford Backscattering. The EuTiO3 films grow
two-dimensionally, epitaxially, pseudomorphically, with no measurable in-plane
lattice mismatch.Comment: 7 pages, 6 figure
Use of Trees by the Texas Ratsnake (Elaphe obsoleta) in Eastern Texas
We present information on the use of trees by Elaphe obsoleta (Texas Ratsnake) in a mesic pine-hardwood forest in eastern Texas. Using radiotelemetry, seven snakes (3 females, 4 males) were relocated a total of 363 times from April 2004 to May 2005, resulting in 201 unique locations. Snakes selected trees containing cavities and used hardwoods and snags for a combined 95% of arboreal locations. Texas Ratsnake arboreal activity peaked during July and August, well after the peak of avian breeding activity, suggesting arboreal activity involves factors other than avian predation
Use of Trees by the Texas Ratsnake (\u3cem\u3eElaphe obsoleta\u3c/em\u3e) in Eastern Texas
We present information on the use of trees by Elaphe obsoleta (Texas Ratsnake) in a mesic pine-hardwood forest in eastern Texas. Using radiotelemetry, seven snakes (3 females, 4 males) were relocated a total of 363 times from April 2004 to May 2005, resulting in 201 unique locations. Snakes selected trees containing cavities and used hardwoods and snags for a combined 95% of arboreal locations. Texas Ratsnake arboreal activity peaked during July and August, well after the peak of avian breeding activity, suggesting arboreal activity involves factors other than avian predation
Spatial Ecology of the Coachwhip, Masticophis flagellum (Squamata: Colubridae), in Eastern Texas
We radio-tracked nine Masticophis flagellum (Coachwhips) to determine home range, habitat use, and movements in eastern Texas from April to October 2000. Home ranges of Coachwhips contained more oak savanna macrohabitat than early-successional pine plantation or forested seep, based on the availability of these three macrohabitats in the study area. Likewise, within their individual home ranges, Coachwhips used oak savanna more than the other two macrohabitats, based on availability. An analysis of microhabitat use revealed that, relative to random sites within their home range, Coachwhips were found at sites with fewer pine trees and more herbaceous vegetation taller than 30 cm. Results of the two analyses, macrohabitat and microhabitat, were consistent: oak savannas contained relatively few pine trees but much herbaceous vegetation taller than 30 cm. Coachwhips made frequent long-distance moves, which resulted in large home ranges. Core activity areas, however, were small. These core activity areas were always within the oak savanna macrohabitat. Long movements, large home ranges, and small core activity areas likely were a result of the preferred oak savanna macrohabitat being patchily distributed in the landscape
Plaid slant and inclination thresholds can be predicted from components
We investigated whether stereoscopic slant and inclination thresholds for surfaces defined by two component plaids could be predicted from the interocular differences in their individual component gratings. Thresholds were measured for binocular images defined by single sinusoidal gratings and two component plaids. In both cases thresholds showed a marked dependence on component orientation. For absolute component orientations greater than 45 deg we found that inclination thresholds were smaller than slant thresholds. However, for absolute component orientations less than 45 deg, we found a reversal: slant thresholds were smaller than inclination thresholds. We considered three models that might account for these data. One assumed that thresholds stemmed from interocular position differences of corresponding image points. The other two assumed a combination of position, orientation and/or spatial-frequency differences. The best fits were obtained from those models that explicitly represented orientation differences. From the model combining orientation and spatial-frequency differences, we estimated the relative cue sensitivity to be 1.7:1, respectively. For plaids, we found that thresholds obtained from the individual components could be used to predict thresholds for plaids, even though an additional disparity cue from the contrast beat was available
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