Results 81 to 90 of about 7,013 (293)

Diurnal Patterns of the Bi-Directional Reflectance of Fresh-Water Ice

, 2017
To improve the interpretation of surface cryospheric albedo from satellite sensor data, diurnal measurements of the spectral bi-directional reflectance of a commonly-found fresh-water ice type were made, from which hemispherical reflectance can be ...
Eck, Thomas, Leshkevich, George A., Ahmad, Suraiya P., Deering, Donald W.   +3 more
core   +1 more source

A Universal BRDF Archetype Database for Normalizing Directional Reflectance to Nadir BRDF Adjusted Reflectance

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Surface reflectance varies with changes in solar and viewing angles, exhibiting distinct anisotropic reflectance characteristics, which can be characterized using the bidirectional reflectance distribution function (BRDF).
Qianrui Xi, Hu Zhang, Junqin Xie, Xiaoning Zhang, Hongtao Cao, Yan Liu, Lei Cui, Yadong Dong   +7 more
doaj   +1 more source

Deriving albedo maps for HAPEX-Sahel from ASAS data using kernel-driven BRDF models [PDF]

Hydrology and Earth System Sciences, 1999
This paper describes the application and testing of a method for deriving spatial estimates of albedo from multi-angle remote sensing data. Linear kernel-driven models of surface bi-directional reflectance have been inverted against high spatial ...
P. Lewis, M. I. Disney, M. J. Barnsley, J.-P. Muller   +3 more
doaj  

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

Advanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan, David Bürger, Gunther Eggeler, Oleg Shchyglo, Ingo Steinbach, Muhammad Adil Ali   +5 more
wiley   +1 more source

A new lab facility for measuring bidirectional reflectance/emittance distribution functions of soils and canopies

, 2011
Recently, a laboratory measurement facility has been realized for assessing the anisotropic reflectance and emittance behaviour of soils, leaves and small canopies under controlled illumination conditions.
Uiterwijk, M., van der Schoor, R., de Jong, A., Bartholomeus, H., Jalink, H., Schaepman, M.E., Jong, A., de, Clevers, J.G.P.W., Schaepman-Strub, G., Schoor, R., van der   +9 more
core  

Directional reflectance microscopy of stainless steel

, 2020
The usage of stainless steel and its alloys, particularly SS 316L, over the years are consistently high due to the desirable combination of its high corrosion resistance and ease of fabrication.
Cheong, Wai Leong
core  

Steady-state directional diffuse reflectance and fluorescence of human skin [PDF]

, 2006
We present numerical simulations predicting the directional diffuse reflectance and autofluorescence from human skin. Skin is modeled as a seven-layered medium, with each layer having its own optical properties and fluorophore concentrations.
Pilon, L, Pilon, Laurent, Katika, K M, Katika, Kamal M   +3 more
core  

An automated and unbiased grain segmentation method based on directional reflectance microscopy

, 2021
Identifying individual grains from sectioned polycrystalline metals is a foundational task of microstructure analysis. However, traditional grain segmentation methods applied to optical micrographs may suffer from the lack of optical contrast between ...
Gaskey, Bernard, Seita, Matteo, Wittwer, Mallory   +2 more
core   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source