Results 41 to 50 of about 36,012 (262)

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

Advanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie, David Kramer, Thomas Scheithauer, Hans Jürgen Maier, Thomas Hassel   +4 more
wiley   +1 more source

Effect of Synchronous Atmospheric Correction on the Accuracy of High-Resolution Remote Sensing Indices Images

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Accurate inversion of remote sensing indices images with high-resolution is an important basis for extracting the surface information on fine scale and the remote sensing application with high precision.
Lingling Xu, Wei Xiong, Weining Yi, Wenyu Cui, Xiao Liu, Yuyao Wang   +5 more
doaj   +1 more source

Atmospheric correction for satellite remotely sensed data intended for agricultural applications: impact on vegetation indices [PDF]

Natural Hazards and Earth System Sciences, 2010
Solar radiation reflected by the Earth's surface to satellite sensors is modified by its interaction with the atmosphere. The objective of applying an atmospheric correction is to determine true surface reflectance values and to retrieve physical ...
D. G. Hadjimitsis, G. Papadavid, A. Agapiou, K. Themistocleous, M. G. Hadjimitsis, A. Retalis, S. Michaelides, N. Chrysoulakis, L. Toulios, C. R. I. Clayton   +9 more
doaj  

A Spatiotemporal Atmospheric Refraction Correction Method for Improving the Geolocation Accuracy of High-Resolution Remote Sensing Images

Remote Sensing, 2022
Atmospheric refraction is one of the most significant factors that affect the geolocation accuracy of high-resolution remote sensing images. However, most of the current atmospheric refraction correction methods based on empirical data neglect the ...
Xiaohong Peng, Wenwen Huang, Xiaoyan Li, Lin Yang, Fansheng Chen   +4 more
doaj   +1 more source

Fast Atmospheric Correction Method for Hyperspectral Data [PDF]

Remote Sensing, 2018
Atmospheric correction is a necessary step in image processing data and spectra recorded by spaceborne sensors for pure cloudless atmosphere, primarily in the visible and near-IR spectral range. We have present a fast and sufficiently accurate method of atmospheric correction based on the proposed analytical solutions describing with high accuracy the ...
Leonid Katkovsky, Anton Martinov, Volha Siliuk, Dimitry Ivanov, Alexander A. Kokhanovsky   +4 more
openaire   +4 more sources

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Radiometric Correction of Landsat 8 Imagery Using Open-Source Software and its Impact on Spectral Index Derivation: A Case Study in the Southern Expanded Metropolitan Microregion of Espírito Santo State, Brazil [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Orbital imagery acquired in the optical spectrum is inherently subject to geometric and radiometric errors. These inaccuracies stem from instrumental imperfections, imaging limitations, and various effects that influence the signal from the information ...
W. S. Bazan, W. S. Bazan, F. S. Y. Watanabe, M. L. B. T. Galo, A. M. G. Tommaselli, M. Galo   +5 more
doaj   +1 more source

Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Ludger Overmeyer, Annika Raatz   +5 more
wiley   +1 more source

Analysis of Retrieval Accuracy and Spatial–Temporal Variation of Chlorophyll-A Concentration in Bohai Sea Based on GOCI

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Bohai Sea is China's inland sea, its complex marine and atmospheric optical properties pose a challenge to the application of satellite data to retrieve chlorophyll-a (CHLA) concentration with high accuracy.
Jing-wen Hu, Xiao-yan Liu, Qi-xiang Wang, Xin Li, Wen-long Dong, Wei-qi Lin, Jun-yue Zhang, Ming-yu Li, Zhi-hong Wu   +8 more
doaj   +1 more source

Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +2 more
wiley   +1 more source