Flow variation and substrate type affect dislodgement of the freshwater polychaete, Manayunkia speciosa

2013 ◽  
Vol 32 (3) ◽  
pp. 862-873 ◽  
Author(s):  
David M. Malakauskas ◽  
Sarah J. Willson ◽  
Margaret A. Wilzbach ◽  
Nicholas A. Som
Keyword(s):  
Substrate Type ◽  
Flow Variation ◽  
Manayunkia Speciosa

A survey of marine fungi on wood in South Australia

2020 ◽  
Vol 63 (5) ◽  
pp. 469-478
Author(s):  
Sally C. Fryar ◽  
Kevin D. Hyde ◽  
David E. A. Catcheside
Keyword(s):  
New Species ◽  
Marine Fungi ◽  
New Records ◽  
South Australia ◽  
Common Species ◽  
Species Assemblages ◽  
Substrate Type ◽  
Geographic Locations ◽  
Mangrove Wood ◽  
High Diversity

AbstractA survey of driftwood and mangrove wood in South Australia revealed a high diversity of marine fungi. Across eight sites there were 43 species of marine fungi, of which 42 are new records for South Australia, 11 new records for Australia and 12 taxa currently of uncertain status likely to be new species. Sites had distinctive species compositions with the largest difference attributable to substrate type (beach driftwood vs. mangrove wood). However, even between mangrove sites, species assemblages were distinctly different with only the more common species occurring at all mangrove sites. More intensive surveys across a broader range of habitats and geographic locations should reveal significantly more species.

scholarly journals Does substrate colour affect the visual appearance of gilded medieval sculptures? Part II: SEM–EDX observations on gold leaf samples taken from medieval wooden sculptures

2020 ◽  
Vol 8 (1) ◽  
Author(s):  
Qing Wu ◽  
Max Döbeli ◽  
Tiziana Lombardo ◽  
Katharina Schmidt-Ott ◽  
Benjamin Watts ◽  
...  
Keyword(s):  
Rutherford Backscattering Spectrometry ◽  
Substrate Type ◽  
Surface Appearance ◽  
Late Medieval ◽  
Visual Appearance ◽  
Materials Analysis ◽  
Gold Leaf ◽  
X Ray ◽  
Technical Specifications ◽  
Peak Value

AbstractIn the previous paper (Part I), the colorimetry and interferometric microscopy measurements on modern gold leaf models have revealed that the visual appearance of a gilded surface, both burnished and unburnished, depends strongly on the substrate type, surface roughness and texture, but not on the colour of the substrate. In this second part, we investigate the materials compositions and technical specifications of medieval gold leaf through combining literature sources and materials analysis such as scanning electron microscopy coupled with energy dispersive X-ray analysis (SEM–EDX) on samples taken from gilded wooden sculptures. Our study shows that the late medieval gold leaf has a high purity of about 23.7 carat and has an average thickness of 160 nm (with a peak value of 138 nm), purer and thicker than the modern gold leaves studies in Part I. Supportive Rutherford backscattering spectrometry (RBS) measurements on gilded models confirms the accuracy and reliability of the SEM–EDX observations on the medieval gold leaf samples. We additionally present observations of a rarely recorded special variant of medieval gold leaf—“fine reinforced gold leaf”. Combined with the findings from Part I, we conclude that light penetrating the medieval gold leaf and reflected from the gilding substrate could not be a significant, or even perceptible contribution to the visual appearance of the gilding. We argue that the misconception surrounding the correlation between the substrate colour and the gilded surface appearance can be attributed to the historical development of gilding and polychromy technologies.

Influence of the Substrate Type on the Surface Morphology of Cu2ZnSnSe4 Thin Films

2018 ◽  
Vol 12 (6) ◽  
pp. 1077-1081
Author(s):  
S. M. Baraishuk ◽  
T. M. Tkachenko ◽  
A. V. Stanchik ◽  
V. F. Gremenok ◽  
S. A. Bashkirov ◽  
...  
Keyword(s):  
Thin Films ◽  
Surface Morphology ◽  
Substrate Type

scholarly journals Multifunctionality is affected by interactions between green roof plant species, substrate depth, and substrate type

2017 ◽  
Vol 7 (7) ◽  
pp. 2357-2369 ◽  
Author(s):  
Yann Dusza ◽  
Sébastien Barot ◽  
Yvan Kraepiel ◽  
Jean-Christophe Lata ◽  
Luc Abbadie ◽  
...  
Keyword(s):  
Plant Species ◽  
Green Roof ◽  
Substrate Type ◽  
Substrate Depth

Laser Induced Etching for Generation of Si Nanocrystals and Spectroscopic Investigation of Morphology

2005 ◽  
Vol 23 ◽  
pp. 43-46
Author(s):  
H.S. Mavi ◽  
S. Rath ◽  
Arun Shukla
Keyword(s):  
Quantum Confinement ◽  
Silicon Nanocrystals ◽  
Laser Wavelength ◽  
Interconnected Network ◽  
Substrate Type ◽  
Argon Ion Laser ◽  
Si Nanocrystals ◽  
Ion Laser ◽  
Laser Induced Etching ◽  
Argon Ion

Laser-induced etching of silicon is used to generate silicon nanocrystals. The pore structure depends on the substrate type and etching laser wavelength. Porous silicon (PS) samples prepared by Nd:YAG laser (1.16 eV) etching of n-type substrate showed a fairly uniform and highly interconnected network of nearly circular pores separated by thin columnar boundaries, while no circular pits were produced by argon- ion laser (2.41 eV) etching under similar conditions. The size and size distribution of the nanocrystals are investigated by Raman and photoluminescence spectroscopies and analyzed within the framework of quantum confinement models.

Biventricular Continuous Flow VADs Demonstrate Diurnal Flow Variation and Lead to End-Organ Recovery

2011 ◽  
Vol 92 (1) ◽  
pp. e1-e3 ◽  
Author(s):  
Edwin C. McGee ◽  
Umraan Ahmad ◽  
Daniel Tamez ◽  
Michael Brown ◽  
Neil Voskoboynikov ◽  
...  
Keyword(s):  
Continuous Flow ◽  
Flow Variation ◽  
Organ Recovery
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