DIFFUSE REFLECTANCE SPECTROSCOPY: APPLICATIONS IN MEASURING MITE-FEEDING INJURY TO ORCHARD LEAVES

1974 ◽  
Vol 54 (3) ◽  
pp. 505-509 ◽  
Author(s):  
J. D. MACNEIL ◽  
R. S. DOWNING ◽  
M. HIKICHI
Keyword(s):  
Diffuse Reflectance ◽  
Burn Injury ◽  
Diffuse Reflectance Spectroscopy ◽  
Reflectance Spectroscopy ◽  
Yellow Pigment ◽  
Panonychus Ulmi ◽  
Green Pigment ◽  
Pyrus Communis L ◽  
Mite Feeding ◽  
Method Of Measurement

Diffuse reflectance spectroscopy measured damage to leaves of McIntosh, Red Delicious and Golden Delicious apple (Malus sylvestrus Mill.) trees caused by varying population levels of the European red mite, Panonychus ulmi (Koch). The ratio of yellow pigment to green pigment in the leaves increased with increasing mite populations. Results were compared with those obtained by chlorophyll analyses. Transpiration burn injury was found to obscure such relationships, if they exist, on Bartlett pear (Pyrus communis L.) leaves on which mites had been feeding. The results indicate that reflectance spectroscopy will measure damage caused by leaf-feeding mites and is a more rapid and sensitive method of measurement than the analysis of chlorophyll in solution.

DIFFUSE REFLECTANCE SPECTROSCOPY MONTE-CARLO MODELING: ELONGATED ARTERIAL TISSUES OPTICAL PROPERTIES

2006 ◽  
Vol 39 (18) ◽  
pp. 41-46
Author(s):  
Emilie Péry ◽  
Walter C.P.M. Blondel ◽  
Cédric Thomas ◽  
Jacques Didelon ◽  
François Guillemin
Keyword(s):  
Monte Carlo ◽  
Optical Properties ◽  
Diffuse Reflectance ◽  
Diffuse Reflectance Spectroscopy ◽  
Reflectance Spectroscopy ◽  
Monte Carlo Modeling

Visible-Light-Induced Photocatalytic Activity of Boron-Doped BiVO4

2014 ◽  
Vol 809-810 ◽  
pp. 890-894
Author(s):  
Dan Li ◽  
Lian Wei Shan ◽  
Gui Lin Wang ◽  
Li Min Dong ◽  
Wei Li ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Diffuse Reflectance ◽  
Diffuse Reflectance Spectroscopy ◽  
Sol Gel ◽  
Reflectance Spectroscopy ◽  
Scheelite Structure ◽  
X Ray Diffraction ◽  
X Ray ◽  
Boron Doped

Boron-BiVO4 samples were synthesized by sol-gel method. They were characterized by UV-vis diffuse reflectance spectroscopy, X-ray diffraction. Photocatalytic activity of the obtained BiVO4 samples was investigated through degrading methylene blue (MB). The results reveal that boron-BiVO4 catalysts have monoclinic scheelite structure. The BiVO4 and Co-BiVO4 photocatalysts were responsive to visible light. Co-BiVO4 photocatalyst showed higher photocatalytic activity than pure BiVO4, resulting in the significantly improved efficiency of degradation of MB.

scholarly journals Autofluorescence and diffuse reflectance spectroscopy of oral epithelial tissue using a depth-sensitive fiber-optic probe

2008 ◽  
Vol 47 (6) ◽  
pp. 825 ◽  
Author(s):  
Richard A. Schwarz ◽  
Wen Gao ◽  
Dania Daye ◽  
Michelle D. Williams ◽  
Rebecca Richards-Kortum ◽  
...  
Keyword(s):  
Diffuse Reflectance ◽  
Fiber Optic ◽  
Diffuse Reflectance Spectroscopy ◽  
Reflectance Spectroscopy ◽  
Epithelial Tissue ◽  
Fiber Optic Probe ◽  
Optic Probe ◽  
Oral Epithelial
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