Results 21 to 30 of about 23,307 (292)

Scaling spectroscopic approaches – from leaf albedo to ecosystems mapping [PDF]

, 2010
Field based spectroscopy for ecological and environmental monitoring has become an indispensable part of complete observational systems as defined in GEOSS (Global Earth Observation System of Systems).
Malenovský, Z, Bartholomeus, H, Schaepman, M.E., Malenovsky, Z., Schaepman-Strub, G, Schaepman, Michael E; https://orcid.org/, Bartholomeus, H., Hueni, A., Schaepman-Strub, G., Kneubühler, M; https://orcid.org/, Damm, A; https://orcid.org/, Kneubühler, M., Damm, A.   +12 more
core   +1 more source

From cropland to cropped field: A robust algorithm for national-scale mapping by fusing time series of Sentinel-1 and Sentinel-2

International Journal of Applied Earth Observations and Geoinformation, 2022
Detailed and updated maps of actively cropped fields on a national scale are vital for global food security. Unfortunately, this information is not provided in existing land cover datasets, especially lacking in smallholder farmer systems.
Bingwen Qiu, Duoduo Lin, Chongcheng Chen, Peng Yang, Zhenghong Tang, Zhenong Jin, Zhiyan Ye, Xiaolin Zhu, Mingjie Duan, Hongyu Huang, Zhiyuan Zhao, Weiming Xu, Zuoqi Chen   +12 more
doaj   +1 more source

Exploratory investigation of historical decorative laminates by means of vibrational spectroscopic techniques

Heritage Science, 2023
Literature research revealed that scientific work on the characteristics of historical decorative laminates (DLs), like typology, and particularly the material-technical aspects related to the composition and build-up is scarce in the field of ...
An Jacquemain, Klara Retko, Lea Legan, Polonca Ropret, Friederike Waentig, Vincent Cattersel   +5 more
doaj   +1 more source

Velvet Family Members Regulate Pigment Synthesis of the Fruiting Bodies of Auricularia cornea

Journal of Fungi, 2023
Color is a crucial feature to consider when breeding and improving strains of Auricularia cornea. To uncover the mechanism of white strain formation in A.
Xiaoxu Ma, Lixin Lu, Youmin Zhang, Ming Fang, Kaisheng Shao, Xu Sun, Fangjie Yao, Peng Wang   +7 more
doaj   +1 more source

Identification and mapping of ancient pigments in a Roman Egyptian funerary portrait by application of reflectance and luminescence imaging spectroscopy

Heritage Science, 2022
Imaging spectroscopy (IS) is an important tool in the comprehensive technical analysis required of archaeological paintings. The complexity of pigment mixtures, diverse artistic practices and painting technologies, and the often-fragile and weathered ...
Roxanne Radpour, Glenn A. Gates, Ioanna Kakoulli, John K. Delaney   +3 more
doaj   +1 more source

2D excitation-emission fluorescence mapping analysis of plant food pigments

Food Chemistry, 2023
Homogeneous dispersion of plant food pigments is indispensable to study their characteristic fluorescence features for non-destructive rapid monitoring of food systems. However, it is highly challenging to obtain such optical grade homogenized stable dispersion of various plant pigments in aqueous media for tracing their precise fluorescence signatures.
Raghavan Chinnambedu, Murugesan, Mohammed Thofike Ahmed, Choudhury, Alex, Rozhin   +2 more
openaire   +2 more sources

Modeling Photo-Bleaching Kinetics to Create High Resolution Maps of Rod Rhodopsin in the Human Retina. [PDF]

PLoS ONE, 2015
We introduce and describe a novel non-invasive in-vivo method for mapping local rod rhodopsin distribution in the human retina over a 30-degree field. Our approach is based on analyzing the brightening of detected lipofuscin autofluorescence within small
Martin Ehler, Julia Dobrosotskaya, Denise Cunningham, Wai T Wong, Emily Y Chew, Wojtek Czaja, Robert F Bonner   +6 more
doaj   +1 more source

Quantitative Autofluorescence and Cell Density Maps of the Human Retinal Pigment Epithelium [PDF]

Investigative Opthalmology & Visual Science, 2014
Lipofuscin (LF) accumulation within RPE cells is considered pathogenic in AMD. To test whether LF contributes to RPE cell loss in aging and to provide a cellular basis for fundus autofluorescence (AF) we created maps of human RPE cell number and histologic AF.Retinal pigment epithelium-Bruch's membrane flat mounts were prepared from 20 donor eyes (10 ≤
Ach, Thomas, Huisingh, Carrie, McGwin, Gerald, Messinger, Jeffrey, Zhang, Tianjiao, Bentley, Mark, Gutierrez, Danielle B., Ablonczy, Zsolt, Smith, R. Theodore, Sloan, Kenneth R., Curcio, Christine A.   +10 more
openaire   +3 more sources

Mapping Pigments in a Painting with Low Frequency Electron Paramagnetic Resonance Spectroscopy

Heritage, 2021
An electron paramagnetic resonance (EPR) mobile universal surface explorer (MOUSE) was recently introduced for noninvasively studying paramagnetic pigments in paintings.
Shane McCarthy, Haley Wiskoski, Joseph P. Hornak   +2 more
doaj   +1 more source

Carotenoid Pigment Content in Durum Wheat (Triticum turgidum L. var durum): An Overview of Quantitative Trait Loci and Candidate Genes

Frontiers in Plant Science, 2019
Carotenoid pigment content is an important quality trait as it confers a natural bright yellow color to pasta preferred by consumers (whiteness vs. yellowness) and nutrients, such as provitamin A and antioxidants, essential for human diet.
Pasqualina Colasuonno, Ilaria Marcotuli, Antonio Blanco, Marco Maccaferri, Giuseppe Emanuele Condorelli, Roberto Tuberosa, Roberto Parada, Adriano Costa de Camargo, Andrés R. Schwember, Agata Gadaleta   +9 more
doaj   +1 more source