Results 11 to 20 of about 844 (236)

Assessment of Directional–Hemispherical Reflectance of Tablets with Cefuroxime during Storage under Elevated Temperature and Ultraviolet Radiation [PDF]

open access: yesSensors (Basel)
Environmental conditions can lead to changes in the physical and chemical structures of drug products. In this study, the stability of cefuroxime tablets stored under adverse conditions was evaluated based on total directional–hemispherical ...
Beata Sarecka-Hujar, Michał Meisner
core   +2 more sources

Incorporating Spectral and Directional Leaf Reflectance into Virtual Plant Models via Phong Shader Parameter Fitting [PDF]

open access: yesPlants (Basel)
Accurate light simulations using virtual plant models are essential for analyzing how plant structures influence the micro-light climate within canopies.
Tran Quoc Khanh   +3 more
core   +2 more sources

Comparison of Total Hemispherical Reflectance and Emittance Values Between Metformin Extended-Release Tablets Stored Under Ambient and Stress Conditions [PDF]

open access: yesSensors (Basel)
Type 2 diabetes is a serious health problem worldwide. Metformin as the first-line drug in diabetes treatment mainly inhibits glucose production in the liver.
Beata Sarecka-Hujar, Michał Meisner
core   +2 more sources

Directional Hemispherical Reflectance in the Analysis of Expired and Unexpired Tablets Containing Nifuroxazide—The Results of a Pilot Study

open access: yesThe 1st International Electronic Conference on Processes: Processes System Innovation, 2022
This study aimed to assess the possible usage of total directional hemispherical reflectance (DHR) in terms of the stability of tablets during storage. Expired and unexpired coating tablets containing nifuroxazide were analyzed.
Beata Sarecka-Hujar, Beata Szulc-Musioł
openaire   +3 more sources

A New Method for the Estimation of Broadband Apparent Albedo Using Hyperspectral Airborne Hemispherical Directional Reflectance Factor Values [PDF]

open access: yesRemote Sensing, 2016
The broadband albedo values retrieved from satellite sensors are usually compared directly to ground measurements. Some authors have noted the necessity of high spatial resolution albedo estimates to fill the gap between ground measurements and satellite retrievals. In this respect, hyperspectral airborne data with high spatial resolution is a powerful
Javier F. Calleja   +5 more
core   +6 more sources

Hemispherical reflectance and albedo estimates from the accumulation of across-track sun-synchronous satellite data [PDF]

open access: yes, 1999
The estimation of the hemispherical reflectance and the instantaneous albedo of canopies from top of canopy satellite reflectance data was investigated.
Bégué, Agnès   +9 more
core   +1 more source

The Influence of Sebum on Directional Reflectance of the Skin

open access: yes, 2023
The sebaceous glands are responsible for the secretion of sebum. Its function is to maintain a proper epidermal barrier and participate in metabolic processes within the epidermis.
Agata Lebiedowska   +7 more
core   +1 more source

In-Situ and Aircraft Reflectance Measurement Effectiveness for CAL/VAL Activities: A Study over Railroad Valley [PDF]

open access: yes, 2020
This paper aims to assess the relationship between the surface reflectance derived from ground based and aircraft measurements. The parameters of the Rahman–Pinty–Verstraete (RPV) and Ross Thick-LiSparse (RTLS) kernel based bi-directional reflectance ...
Lanconelli, C   +9 more
core   +3 more sources

Optimal Exploitation of the Sentinel-2 Spectral Capabilities for Crop Leaf Area Index Mapping [PDF]

open access: yes, 2012
The continuously increasing demand of accurate quantitative high quality information on land surface properties will be faced by a new generation of environmental Earth observation (EO) missions.
Mauser, Wolfram   +13 more
core   +1 more source

Hemispherical–directional reflectance measurements of natural snow in the 0.9–1.45 μm spectral range: comparison with adding–doubling modelling

open access: yes, 1998
The authors present the results of snow hemispherical–directional reflectance measurements on natural snow in the 0.9–1.45 μm spectral range. The measurements were made in a cold laboratory on snow collected in the field.
Claude Sergent   +3 more
core   +2 more sources

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