Results 31 to 40 of about 15,180 (210)

Soil Moisture Active/Passive (SMAP) L-Band Microwave Radiometer Post-Launch Calibration Revisit: Approach and Performance

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
The soil moisture active passive (SMAP) microwave radiometer is a fully-polarimetric L-band radiometer flown on the SMAP satellite in a 6 AM /6 PM sun-synchronous orbit at 685-km altitude.
Jinzheng Peng   +9 more
doaj   +1 more source

Synthesis and numerical simulation of formamidinium-based perovskite solar cells: a predictable device performance at NIS-Egypt

open access: yesScientific Reports, 2023
Formamidinium lead triiodide (δ-FAPbI3)-based perovskite solar cells showed remarkable potential as light harvesters for thin-film photovoltaics. Herein, the mechanochemical synthesis of δ-FAPbI3, MAPbI3, and mixed-cation FA1−x MA x PbI3 with (x = 0.3, 0.
Moamen R. A. Elsayed   +4 more
doaj   +1 more source

APPLICATION OF NEUTRON ACTIVATION ANALYSIS IN CHARACTERIZATION OF ENVIRONMENTAL SRM SAMPLES

open access: yesIndonesian Journal of Chemistry, 2010
Neutron activation analysis (NAA) is a nuclear technique that is excellent, multi-elemental, sensitive and has limit detection up to nanogram level. The application of NAA in analysis of Standard Reference Material (SRM) National Institute of Standard ...
Diah Dwiana Lestiani   +2 more
doaj   +1 more source

Dataset for additional information on the evaluation of thermal properties of thin films by IR radiometry using a comprehensive set of Zr–O–N thin films

open access: yesData in Brief, 2020
This paper provides additional negative data regarding the paper Evaluation of thermal properties of thin films by IR radiometry using a comprehensive set of Zr–O–N thin films [1]. In that paper, a matrix of samples was prepared to evaluate the so-called
C.I. da Silva-Oliveira   +4 more
doaj   +1 more source

Polarimetric Portraits

open access: yesEarth and Space Science, 2021
“Fully polarimetric” in its original radio science usage denotes a receiving instrument's ability to measure the four‐parameter Stokes vector characterizing the polarimetric properties of an electro‐magnetic (EM) field.
R. Keith Raney
doaj   +1 more source

Actual metrological conditions for ionizing chamber calibration in radiotherapy [PDF]

open access: yesArchive of Oncology, 2004
BACKGROUND: Since 1976 it has been recognized that an accuracy of ±5% in the delivery of an absorbed dose to a target volume is necessary for successful therapy treatment.
Spasić-Jokić Vesna M.
doaj   +1 more source

CHARACTERISTIC OF AIRBORNE PARTICULATE MATTER SAMPLES COLLECTED FROM TWO SEMI INDUSTRIAL SITES IN BANDUNG, INDONESIA

open access: yesIndonesian Journal of Chemistry, 2013
Air particulate matter concentrations, black carbon as well as elemental concentrations in two semi industrial sites were investigated as a preliminary study for evaluation of air quality in these areas.
Diah Dwiana Lestiani   +3 more
doaj   +1 more source

Ensquared Energy and Optical Centroid Efficiency in Optical Sensors: Part 1, Theory

open access: yesPhotonics, 2023
High-performance megapixel focal plane arrays with small pixels have been widely used in modern optical remote sensing, astronomical, and surveillance instruments.
Marija Strojnik   +3 more
doaj   +1 more source

Spatial and temporal scales in plant phenotyping for crop water stress assessment: A review

open access: yesThe Plant Phenome Journal, Volume 9, Issue 1, December 2026.
Abstract Water stress is a major limiting factor for crop productivity worldwide, and its impacts are intensifying due to climate variability and increasing water scarcity. This review focuses on the spatial and temporal scales in plant phenotyping as a critical approach to improving crop water‐stress assessment and supporting precision water ...
Daniel Kingsley Cudjoe   +3 more
wiley   +1 more source

An efficient methodology to simulate mixed spectral signatures of land covers through Field Radiometry data [PDF]

open access: yes, 2009
An efficient methodology to simulate mixed spectral signatures of land covers, from endmember data, using linear statistical modelling based on the least squares estimation approach, is proposed.
Vázquez Sierra, José Manuel   +2 more
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