Results 31 to 40 of about 53,616 (283)

Experimental Evaluation of a Spectral Index to Characterize Temporal Variations in the Direct Normal Irradiance Spectrum

Applied Sciences, 2021
A simple index is desirable to assess the effects on both flat-plate and concentrating photovoltaics of natural changes in the solar spectrum. Some studies have suggested that the relationship between the Average Photon Energy (APE) and the shape of ...
Gustavo Nofuentes, Christian A. Gueymard, José A. Caballero, Guilherme Marques-Neves, Jorge Aguilera   +4 more
doaj   +1 more source

Shade Selection, a Key to Esthetics

Journal of International Clinical Dental Research Organization
One of the most difficult steps in restorative dentistry can be precisely matching natural teeth with an artificial restoration. Natural teeth come in a variety of shapes and hues.
Shruti Deepak Jadhav, Varsha Sanjay Pandit, Ashwini Avinash Gaikwad, Vinaya Prabhanjan Ingale, Rajlaxmi Pradeep Patil, Mineet Satish Kaul   +5 more
doaj   +1 more source

Using Ridge Regression Models to Estimate Grain Yield from Field Spectral Data in Bread Wheat (Triticum Aestivum L.) Grown under Three Water Regimes

Remote Sensing, 2015
Plant breeding based on grain yield (GY) is an expensive and time-consuming method, so new indirect estimation techniques to evaluate the performance of crops represent an alternative method to improve grain yield. The present study evaluated the ability
Javier Hernandez, Gustavo A. Lobos, Iván Matus, Alejandro del Pozo, Paola Silva, Mauricio Galleguillos   +5 more
doaj   +1 more source

Estimating the irradiance spectrum from measurements in a limited number of spectral bands

, 2006
Accurate measurement and characterisation of fluctuations in the irradiance environment is important for many areas of optical remote sensing. This paper describes a method of estimating spectral irradiance over the region 400 – 1000 nm from the radiance
Milton, E.J., Rollin, E.M.
core   +1 more source

Assessment of the potential of MERIS near-infrared water vapour products to correct ASAR interferometric measurements [PDF]

, 2006
Atmospheric water vapour is a major limitation for high precision Interferometric Synthetic Aperture Radar (InSAR) applications due to its significant impact on microwave signals.
Albert, P., Bennartz, R., Cross, P., Fischer, J., Li, Z., Muller, J.P.   +5 more
core   +1 more source

Exploring plant responses to abiotic stress by contrasting spectral signature changes

Frontiers in Plant Science, 2023
In this study, daily changes over a short period and diurnal progression of spectral reflectance at the leaf level were used to identify spring wheat genotypes (Triticum aestivum L.) susceptible to adverse conditions.
Félix Estrada, Félix Estrada, Jaume Flexas, Jose Luis Araus, Freddy Mora-Poblete, Jaime Gonzalez-Talice, Dalma Castillo, Ivan A. Matus, Ana Maria Méndez-Espinoza, Miguel Garriga, Carlos Araya-Riquelme, Cyril Douthe, Benjamin Castillo, Alejandro del Pozo, Gustavo A. Lobos   +14 more
doaj   +1 more source

Experimental Study on the Inverse Estimation of Horizontal Air Temperature Distribution in Built Spaces Using a Ground-Based Thermal Infrared Spectroradiometer

Remote Sensing, 2021
Air temperature is an important physical indicator for urban and architectural environments; however, it is difficult to obtain its distributive characteristics by field measurements owing to the limitations of current measuring instruments.
Ryuta Tsurumi, Takashi Asawa, Haruki Oshio   +2 more
doaj   +1 more source

Laboratory calibration for multidirectional spectroradiometers

Measurement Science and Technology, 2021
Abstract A method for the calibration of multidirectional spectroradiometers (MUDISs) capable of the simultaneous measurement of spectral radiance at different wavelengths is presented. The calibration of the spectroradiometer is challenging and crucial for high quality measurements of the angular dependence of the radiance.
Angelika Niedzwiedz, Jens Duffert, Mario Tobar-Foster, Esther Quadflieg, Gunther Seckmeyer   +4 more
openaire   +1 more source

Measuring Vegetation Phenology with Near-Surface Remote Sensing in a Temperate Deciduous Forest: Effects of Sensor Type and Deployment

Remote Sensing, 2019
Near-surface remote sensing is an effective tool for in situ monitoring of canopy phenology, but the uncertainties involved in sensor-types and their deployments are rarely explored. We comprehensively compared three types of sensor (i.e., digital camera,
Fan Liu, Xingchang Wang, Chuankuan Wang
doaj   +1 more source

Synchronized Electro‐Chromo‐Emissive Devices Using a Mixed Ionic‐Electronic Conductive Layer for XR Applications

Advanced Functional Materials, EarlyView.
A single cell type Electro‐chromo‐emissive (ECECL) device integrating synchronized electrochromic (EC) and electrochemiluminescent (ECL) functions is developed using a mixed ionic‐electronic conductor (MIEC). A MIEC layer reduces ionic/electronic resistance, enabling ultrafast switching and enhanced optical contrast.
Hwandong Jang, Sienoh Park, Won‐Jae Joo, Jinbo Kim, Nori Kobayashi, Eunkyoung Kim   +5 more
wiley   +1 more source