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Application of the density-functional theory to calculation of the reflectivity from shocked xenon

P. A. Zhilyaev, G. E. Norman, I. M. Saitov, V. V. Stegailov
2013 Doklady physics (Print)  
Fig. 3 .Fig. 4 . 34 Reflection coefficient as a function of the angle of incidence. Lines correspond to calculation results: (1) ; (2) R p .  ...  Using the permittivity value for the given temperature and density, we can calculate the reflection coefficient as a function of the angle of incidence.  ... 
doi:10.1134/s1028335813070082 fatcat:5vg7xmzalngq3hv5j2nkss5xda

An Early Maritime Biface Technology at Daisy Cave, San Miguel Island, California: Reflections on Sample Size, Site Function, and Other Issues

Jon M. Erlandson, Nicholas Jew
2009 North American archaeologist (Print)  
In this article, we describe the bifaces recovered from Paleocoastal (~10,200 to 8500 cal BP) strata at Daisy Cave, then discuss site function, small sample size, and other issues that can limit the interpretation  ...  Most of the bifaces reflect a relatively crude industry produced from Monterey cherts, however, with just one large biface fragment made from siliceous shale from the Monterey Formation.  ...  SUMMARY AND CONCLUSIONS Over the years, we have interpreted the Paleocoastal bifaces from Daisy Cave through dual lenses: one reflecting the traditional view that early biface technologies along the California  ... 
doi:10.2190/na.30.2.c fatcat:jdb77yznuzewfc434tdgmyqgja

A Pocket-Sized 3D-printed Attenuated Total Reflection-Infrared Filtometer combined with Functionalized Silica Films for Nitrate Sensing in Water

Bettina Baumgartner, Stephan Freitag, Christoph Gasser, Bernhard Lendl
2022
Here, we introduced an ion exchange group into mesoporous silica films coated on attenuated total reflection (ATR) crystals to enrich nitrate from aqueous phase in the volume probed by the evanescent field  ...  This emphasizes the high potential of functionalized mesoporous silica films combined with low-cost filtometers for portable water sensors.  ...  Further printing parameters were chosen as suggested by Slic3r for Prusa PLA.  ... 
doi:10.34726/2510 fatcat:ae3e5p576vcc7hwjagx3yhqzgi

Yule-Nielsen effect in halftone prints: graphical analysis method and improvement of the Yule-Nielsen transform

Mathieu Hébert, Reiner Eschbach, Gabriel G. Marcu, Alessandro Rizzi
2014 Color Imaging XIX: Displaying, Processing, Hardcopy, and Applications  
The well-known Yule-Nielsen modified spectral Neugebauer model is one of the most accurate predictive models for the spectral reflectance of printed halftone colors which expresses the spectral reflectance  ...  of light by scattering into the printing support, a phenomenon known as "optical dot gain" or "Yule-Nielsen effect".  ...  The graph represents the reflectance of a single-ink halftone as a function of the reflectance of this fulltoned ink.  ... 
doi:10.1117/12.2037370 dblp:conf/clrimg/Hebert14 fatcat:greh7h77y5bstjptt2yeph3vp4

Improved Spectral Density Measurement from Estimated Reflectance Data with Kernel Ridge Regression [chapter]

Timo Eckhard, Maximilian Klammer, Eva M. Valero, Javier Hernández-Andrés
2014 Lecture Notes in Computer Science  
When multi-spectral imaging systems are considered for surface reflectance measurement, the possibility of calculating spectral print density over the spatial image domain arises.  ...  Density measurement of printed color samples takes an important role in print quality inspection and process control.  ...  The authors thank Christoph Godau from the Institute of Printing Science and Technology, Technische Universität Darmstadt for providing the printed color samples and spectral measurements used in this  ... 
doi:10.1007/978-3-319-07998-1_10 fatcat:5legsjjjlrf33kj57e3i3sh4k4

Analyzing halftone dot blurring by extended spectral prediction models

Mathieu Hébert, Roger David Hersch
2009 Optical Society of America. Journal A: Optics, Image Science, and Vision  
The present study aims at verifying to what extent the classical Clapper-Yule and Yule-Nielsen models are able to predict the reflectance of single-ink continuous-level halftone prints.  ...  Spectral prediction models for halftone prints generally assume homogeneously thick and sharply edged ink dots, i.e., bilevel halftones.  ...  The aim of a reflectance prediction model is to predict the reflectance of halftone prints as a function of the surface coverage of its colorants.  ... 
doi:10.1364/josaa.27.000006 pmid:20035297 fatcat:3samrlrzdrc6hbmajfiyyoi3xa

Reflections in Opal – Meta Information in a Functional Programming Language [chapter]

Klaus Didrich, Wolfgang Grieskamp, Florian Schintke, Till Tantau, Baltasar Trancón-y-Widemann
2000 Lecture Notes in Computer Science  
The type can in turn be queried for properties like the constructor and deconstructor functions, and the resulting reflected functions can be evaluated.  ...  We report on an extension of the Opal system that allows the use of reflections. Using reflections, a programmer can query information like the type of an object at runtime.  ...  Applying the function bind yields the desired reflected value which can be further processed by the inspection functions. Example: Customised Printing.  ... 
doi:10.1007/10722298_9 fatcat:ba53hxxuk5exdgeqr5fc7mmgqa

Improving the Yule-Nielsen modified Neugebauer model by dot surface coverages depending on the ink superposition conditions

Roger David Hersch, Frederique Crete, Reiner Eschbach, Gabriel G. Marcu
2005 Color Imaging X: Processing, Hardcopy, and Applications  
Dot gain is different when dots are printed alone, printed in superposition with one ink or printed in superposition with two inks.  ...  We analyze the colorimetric prediction improvement brought by our extended dot surface coverage model for clustered-dot offset prints, thermal transfer prints and ink-jet prints.  ...  They predict the reflection spectrum of a printed color halftone patch as a function of the reflection spectra of its individual colorants R λ ( ) a i R i λ ( ) ⋅ i ∑ = (1) In the case of independently  ... 
doi:10.1117/12.588907 dblp:conf/clrimg/HerschC05 fatcat:lsg7gs7xrbbq3jnndpioc4kziq

Yule-Nielsen based multi-angle reflectance prediction of metallic halftones

Vahid Babaei, Roger D. Hersch, Reiner Eschbach, Gabriel G. Marcu, Alessandro Rizzi
2015 Color Imaging XX: Displaying, Processing, Hardcopy, and Applications  
Metallic-ink prints however reflect a significant portion of light in the specular direction.  ...  For traditional prints on paper, the n-value expresses the amount of optical dot gain. In the case of the metallic prints, the optical dot gain is much smaller than in paper prints.  ...  For example, metallic-ink prints reflect most of the light in the specular direction.  ... 
doi:10.1117/12.2076380 dblp:conf/clrimg/BabaeiH15 fatcat:r5luolzs7bgdjmbjfbujrc6via

Microstructure Control in 3D Printing with Digital Light Processing

A. Luongo, V. Falster, M. B. Doest, M. M. Ribo, E. R. Eiriksson, D. B. Pedersen, J. R. Frisvad
2019 Computer graphics forum (Print)  
We find that a smooth noise function is an excellent tool for varying surface roughness and for breaking the regularities that lead to aliasing.  ...  We suggest a way of modelling this ground noise to provide users with a tool for estimating a printer's ability to control surface reflectance.  ...  [ LGX*13] present a technique for printing microstructure small enough to create reflectance functions based on wave interference effects.  ... 
doi:10.1111/cgf.13807 fatcat:fekddkprpvfx7fltdiyafc5hyq

Spectral reflection and dot surface prediction models for color halftone prints

Roger D. Hersch, Patrick Emmel, Fabien Collaud, Frédéríque Crété
2005 Journal of Electronic Imaging (JEI)  
The new spectral reflection prediction model combined with the ink-spreading model yields excellent spectral reflection predictions for clustered-dot color halftones printed on an offset press or on thermal  ...  The ink-spreading model incorporates nominal-to-effective surface coverage functions for each of the different ink superposition conditions.  ...  They predict the reflection spectrum of a printed color halftone patch as a function of the reflection spectra of its individual colorants R͑͒ = ͚ i a i R i ͑͒. ͑1͒ In the case of independently printed  ... 
doi:10.1117/1.1989987 fatcat:awyk3wpxavclbkztnw6rfjg57q

Extending the Clapper–Yule model to rough printing supports

Mathieu Hébert, Roger David Hersch
2005 Optical Society of America. Journal A: Optics, Image Science, and Vision  
The Clapper-Yule model is the only classical spectral reflection model for halftone prints that takes explicitly into account both the multiple internal reflections between the print-air interface and  ...  By integrating over all incident angles and facet orientations, we are able to express the internal reflectance of the rough interface as a function of the rms facet slope.  ...  In order to estimate the evolution of the transmittance terms, the internal reflectance terms, and the reflectance factors as a function of the print surface roughness, we have performed numerical evaluations  ... 
doi:10.1364/josaa.22.001952 pmid:16211824 fatcat:fjqpapbtv5btnhgq5sznenklca

Front Matter: Volume 9398

2015 Measuring, Modeling, and Reproducing Material Appearance 2015  
Distribution Functions (BRDF), Bidirectional Texture Functions (BTF), and Bidirectional Surface Scattering Reflectance Distribution Function (BSSRDF); modeling material difference perception; appearance  ...  Functions (BRDF), Bidirectional Texture Functions (BTF), and Bidirectional Surface Scattering Reflectance Distribution Function (BSSRDF); estimation of material difference perception; evaluation of metallic  ... 
doi:10.1117/12.2193203 fatcat:4qilnnuhj5aotpesvvx475wr5e

Identifying a Unique Communication Mechanism of Thermochromic Liquid Crystal Printing Ink

Maja Strižić Jakovljević, Branka Lozo, Marta Klanjšek Gunde
2021 Crystals  
., the appearance of iridescent (rainbow) colours as a function of temperature, must be determined precisely.  ...  Thermochromic liquid crystal materials are commonly used in printing inks, opening up a wide range of possible applications.  ...  Conclusions Reflectance spectra as a function of temperatures of the TLC ink printed on coated and uncoated black substrate in single-, double-and triple-ink layers were measured by two different spectrometers-the  ... 
doi:10.3390/cryst11080876 fatcat:fm7ffx7qhvgxpg26atqflrnbsy

Reflection for the Masses [chapter]

Charlotte Herzeel, Pascal Costanza, Theo D'Hondt
2008 Lecture Notes in Computer Science  
In the early 1980's, Brian Smith introduced a general recipe for building reflective programming languages with the notion of procedural reflection.  ...  We attempt to untangle Smith's original account of procedural reflection and make it accessible to a new and wider audience.  ...  (read-normalize-print)))))))) invoke the stored function instead. 7 What special action is performed by such a function depends on whether the original closure is tagged as "non-reflective" or "reflective  ... 
doi:10.1007/978-3-540-89275-5_6 fatcat:aclnvxlha5f4xnldge7nlshv2y
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