Results 21 to 30 of about 21,857 (278)

Contribution of the Internal Field to the Anisotropic Optical Reflectance of GaP(110) [PDF]

, 1988
This article presents the theory of optical reflection from thin slabs of GaP(110) by means of the discrete dipole model and focusses especially upon the possible implications of this model for the surface induced optical anisotropy. The reflectance of a
Del Sole, R., Wijers, C.M.
core   +3 more sources

Hyperspectral Reflectance Anisotropy Measurements Using a Pushbroom Spectrometer on an Unmanned Aerial Vehicle—Results for Barley, Winter Wheat, and Potato

Remote Sensing, 2016
Reflectance anisotropy is a signal that contains information on the optical and structural properties of a surface and can be studied by performing multi-angular reflectance measurements that are often done using cumbersome goniometric measurements.
Peter P. J. Roosjen, Juha M. Suomalainen, Harm M. Bartholomeus, Jan G. P. W. Clevers   +3 more
doaj   +1 more source

Analysis of Properties of Reflectance Reference Targets for Permanent Radiometric Test Sites of High Resolution Airborne Imaging Systems

Remote Sensing, 2010
Reliable and optimal exploitation of rapidly developing airborne imaging methods requires geometric and radiometric quality assurance of production systems in operational conditions. Permanent test sites are the most promising approach for cost-efficient
Eero Ahokas, Juha Suomalainen, Jouni Peltoniemi, Teemu Hakala, Eija Honkavaara, Lauri Markelin   +5 more
doaj   +1 more source

Anisotropy Parameterization Development and Evaluation for Glacier Surface Albedo Retrieval from Satellite Observations

Remote Sensing, 2021
Glacier albedo determines the net shortwave radiation absorbed at the glacier surface and plays a crucial role in glacier energy and mass balance.
Shaoting Ren, Evan S. Miles, Li Jia, Massimo Menenti, Marin Kneib, Pascal Buri, Michael J. McCarthy, Thomas E. Shaw, Wei Yang, Francesca Pellicciotti   +9 more
doaj   +1 more source

Analysis of Extracting Prior BRDF from MODIS BRDF Data

Remote Sensing, 2016
Many previous studies have attempted to extract prior reflectance anisotropy knowledge from the historical MODIS Bidirectional Reflectance Distribution Function (BRDF) product based on land cover or Normalized Difference Vegetation Index (NDVI) data.
Hu Zhang, Ziti Jiao, Yadong Dong, Peng Du, Yang Li, Yi Lian, Tiejun Cui   +6 more
doaj   +1 more source

Functional Data Analysis of Multi-Angular Hyperspectral Data on Vegetation

Aceh International Journal of Science and Technology, 2012
The surface reflectance anisotropy can be estimated by directional reflectance analysis through the collection of multi-angular spectral data. Proper characterization of the surface anisotropy is animportant element in the successful interpretation of ...
Sugianto, Shawn Laffan
doaj   +3 more sources

REFLECTANCE ANISOTROPY MEASUREMENTS USING A PUSHBROOM SPECTROMETER MOUNTED ON UAV AND A LABORATORY GONIOMETER – PRELIMINARY RESULTS [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
During 2014–2015 we have developed a new method to measure reflectance factor anisotropy using a pushbroom spectrometer mounted on a multicopter UAV. In this paper/presentation we describe the acquisition method and show the preliminary results of the ...
J. Suomalainen, P. Roosjen, H. Bartholomeus, J. Clevers   +3 more
doaj   +1 more source

Optical Anisotropy of Porphyrin Nanocrystals Modified by the Electrochemical Dissolution

Molecules, 2022
Reflectance anisotropy spectroscopy (RAS) coupled to an electrochemical cell represents a powerful tool to correlate changes in the surface optical anisotropy to changes in the electrochemical currents related to electrochemical reactions.
Rossella Yivlialin, Claudia Filoni, Francesco Goto, Alberto Calloni, Lamberto Duò, Franco Ciccacci, Gianlorenzo Bussetti   +6 more
doaj   +1 more source

Green textile dyeing process by using natural dyes: a review [PDF]

, 2020
In the textile industry, up to 200,000 tons of dyes are lost to effluents every year during the dyeing and finishing operations, due to the inefficiency of the dyeing process. Today, the textile industry used average six hundred dyes and chemical for the
Mahmood, Salwa, Nasir, Siti Hana, Sazali, Nurul Aqilah, Wan Yusof, Wan Muhamad Alif   +3 more
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Tunable anisotropy in inverse opals and emerging optical properties [PDF]

, 2014
Using self-assembly, nanoscale materials can be fabricated from the bottom up. Opals and inverse opals are examples of self-assembled nanomaterials made from crystallizing colloidal particles.
Alvarez-Puebla R. A., Arsenault A. C., Blanco A., Brinker C. J., Burgess I. B., Carole C. Perry, Champion J. A., Chen J. I. L., Chen Q., Choi S.-W., Cong H., Cutler J. I., Ding T., Esmanski A., Florez L., Fu M., Galisteo-López J. F., Glotzer S. C., Goodwin J. W., Guerrero-Martínez A., Guldin S., Guldin S., Hatton B., Hench L. L., Herrmann C., Jiang P., Jiang X. C., Joanna Aizenberg, Jones M. R., Katherine R. Phillips, Kolle M., Kuemin C., Lodahl P., Lu Y., Mao X., Mathias Kolle, Mirkin C. A., Nicolas Vogel, O’Reilly R. K., Peterson J. D., Petkovich N. D., Pikul J. H., Raccis R., Sacanna S., Sacanna S., Sanders J., Scherer G. W., Still T., Tétreault N., Vogel N., Vogel N., Vogel N., von Freymann G., Wang X., Wang Y., Wei W., Whitesides G. M., Yang S.-M., Yuhang Hu   +58 more
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