Youngerman, Jack
A Dictionary of Twentieth-Century Art
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1999
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© A Dictionary of Twentieth-Century Art 1999, originally published by Oxford University Press 1999. (Hide copyright information)
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Youngerman, Jack (1926– ). American painter, sculptor, graphic artist, and designer, born in Louisville, Kentucky. After studying at the universities of North Carolina, 1944–6, and Missouri, 1947, he attended the École des
Beaux-Arts, Paris, 1947–8, and remained in Europe until 1956, when he settled in New York. ‘He then became known for bringing a special
Matisse-like rhythm and grace to the Constructivist tradition by rendering leaf, flower or butterfly forms with the brilliantly coloured flatness and clarity of Hard-Edge painting’ ( H. H. Arnason,
A History of Modern Art, 3rd edn., revised by Daniel Wheeler, 1986). Apart from paintings his work has included brilliantly coloured lithographs and screenprints, with sharply outlined abstract shapes, and he has also made sculpture.
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Luminescence in minerals.
Magazine article from: The Mineralogical Record; 1/1/1996; ; 700+ words
; Luminescence is not only a source of beauty and...student of mineralogy is the colorful luminescence of some minerals under ultraviolet...colors are similar for all types of luminescence. A basic understanding of luminescence...
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The glow of success: UV luminescence sensors can do more than photoelectric sensors at less cost than vision systems.(quality & inspection)
Magazine article from: Quality; 5/1/2006; ; 700+ words
; ...not often think of ultraviolet (UV) luminescence sensors for certain applications...which may cost six times as much. Luminescence sensors detect things that glow under...equipment or trigger an indicator. Luminescence sensors can be used in many applications...
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Luminescence in minerals
Magazine article from: Mineralogical Record; 1/1/1996; ; 700+ words
; INTRODUCTION Luminescence is the non-thermal emission of...principal mechanism for most types of luminescence is essentially the same, that is...for explaining the mechanisms of luminescence in minerals. There are numerous...
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Soft X-ray excited colour-centre luminescence and XANES studies of calcium oxide (1).(X-ray absorption near-edge structure)(Report)
Magazine article from: Canadian Journal of Chemistry; 10/1/2007; ; 700+ words
; ...Using the X-ray excited optical luminescence (XEOL) technique, two colour centres...synchrotron, X-ray excited optical luminescence, X-ray absorption near-edge structure...Faisant appel a la technique de la luminescence optique excitee par les rayons X...
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Making sense of lanthanide luminescence.
Magazine article from: Science Progress; 6/22/2005; ; 700+ words
; ABSTRACT The luminescence of trivalent lanthanide ions has...nanoparticles. Keywords: lanthanide, luminescence, nanoparticles, photonics 1...and amplification of light. The luminescence of trivalent lanthanide ions...
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Luminescence dating of mid- to Late Wisconsinan aeolian sand as a constraint on the last advance of the Laurentide Ice Sheet across the Tuktoyaktuk Coastlands, western Arctic Canada.(Report)
Magazine article from: Canadian Journal of Earth Sciences; 6/1/2007; ; 700+ words
; Abstract: Luminescence dating of pre-glacial sand in the...1.0 ka and infrared stimulated luminescence age estimates of 23.8 [+ or...samples provides optically stimulated luminescence age estimates of 16.5 [+ or...
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UNIVERSITY OF CONNECTICUT CHEMISTS ANNOUNCES MAJOR BREAKTHROUGH IN INCREASING LUMINESCENCE EFFICIENCY OF CARBON NANOTUBES
News Wire article from: US Fed News Service, Including US State News; 3/6/2009; 700+ words
; ...found a way to greatly increase the luminescence efficiency of single-walled carbon...imaging and other areas. Increasing the luminescence efficiency of carbon nanotubes may...capture a very sharp resolution of the luminescence of the nanotubes in problem areas...
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Studies from M. Marandi et al provide new data on luminescence.
Newspaper article from: Nanotechnology Weekly; 12/8/2008; 634 words
; ...day of the process; however, the luminescence is weak. After 7 days, the solution...this stage, a relatively strong red luminescence at 635 nm appears from transparent...walls turns to dark-brown color and luminescence increases on the 9th day. Finally...
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Luminescence of Solids
Magazine article from: Spectroscopy; 12/1/1998; ; 411 words
; Luminescence of Solids D.R. Vij (Ed.), Plenum...presents an overview of different areas of luminescence and the related properties of important...introductory chapter covers the theory of luminescence, followed by a review of the conventional...
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Luminescence Quenching of Eu(III) Carboxylates by Cu(II) in a Composite Polymer Xerogel Film[dagger]
Magazine article from: Photochemistry and Photobiology; 1/1/2006; ; 700+ words
; ...solution and a reproducible value of the luminescence ratio between water and Cu(II) solution...situ monitoring and remote sensing. Luminescence detection of fiber optics-coated...Lanthanide ions display a well-defined luminescence characterized by narrow and highly...
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Luminescence
Encyclopedia entry from: UXL Encyclopedia of Science
Luminescence The term luminescence is used to describe a process by which light is produced other...is given off. Fluorescence and phosphorescence Two forms of luminescence can be identified, depending on the amount of time emitted...
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luminescence
Book article from: The Columbia Encyclopedia, Sixth Edition
luminescence general term applied to all forms of...body, such as a black body radiator. Luminescence is caused by the movement of electrons...energetic states. There are many types of luminescence, including chemiluminescence, produced...
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Quorum Sensing
Book article from: World of Microbiology and Immunology
...of quorum sensing was the discovery of the chemical trigger for luminescence in the bacterium Photobacterium fischeri in the 1990s. At high densities of bacteria, luminescence occurs. Light production, however, does not occur at lower numbers...
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Orlov, Sergey Vladimirovich
Dictionary entry from: Complete Dictionary of Scientific Biography
...astrophysical study of comets, taking into consideration the mechanism of luminescence of a comet and variations in its spectra. He repeatedly returned to the study of cometary luminescence and the laws of its variation in a periodic comet from one appearance...
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Dinoflagellates
Book article from: World of Microbiology and Immunology
...are sometimes referred to as Pyrrhophyta, which means fire plants. This is because of their ability to produce biological luminescence, akin to that of the firefly. Often, these luminescent dinoflagellates can be seen in the wake of ocean-going ships...
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