An Airborne Offner Imaging Hyperspectrometer with Radially-Fastened Primary Elements [PDF]
Sensors, 2020 We propose a new layout for the Offner imaging hyperspectrometer that is utilized onboard small space vehicles. The layout is based on a method of adjusting the adaptive temperature-dependent optical scheme by moving just two coaxial optical components ...
Nikolay Kazanskiy +3 more
doaj +2 more sources
3U CubeSat-Based Hyperspectral Remote Sensing by Offner Imaging Hyperspectrometer with Radially-Fastened Primary Elements [PDF]
SensorsThis paper presents findings from a spaceborne Earth observation experiment utilizing a novel, ultra-compact hyperspectral imaging camera aboard a 3U CubeSat.
Nikolay Ivliev +11 more
doaj +2 more sources
Hypothesis and Theory: A Pathophysiological Concept of Stroke-Induced Acute Phase Response and Increased Intestinal Permeability Leading to Secondary Brain Damage. [PDF]
Front Neurosci, 2020 Gut integrity impairment leading to increased intestinal permeability (IP) is hypothesized to be a trigger of critically illness. Approximately 15–20% of human ischemic stroke (IS) victims require intensive care, including patients with impaired level of
Ferrara F +11 more
europepmc +3 more sources
Effect of combining glucocorticoids with Compound A on glucocorticoid receptor responsiveness in lymphoid malignancies. [PDF]
PLoS One, 2018 Glucocorticoids (GCs) are a cornerstone in the treatment of lymphoid malignancies such as multiple myeloma (MM) and acute lymphoblastic leukemia (ALL).
Clarisse D +5 more
europepmc +5 more sources
Modeling of image formation with a space-borne Offner hyperspectrometer [PDF]
Компьютерная оптика, 2020 In this paper, we developed a mathematical model of image formation that allows a predictive hyperspectral image to be generated. The model takes into account the formation of an optical image using a matrix photodetector.
Andrey Rastorguev +2 more
doaj +1 more source
Modeling of arrangement tolerances for the optical elements in a spaceborne Offner imaging hyperspectrometer [PDF]
Компьютерная оптика, 2018 We propose mathematical tools and analyze the quality of an image in the detection plane of an Offner imaging hyperspectrometer, evaluating conditional tolerances for the position of the spectrometer elements. The results of modeling of a combined effect
Andrey Rastorguev +2 more
doaj +1 more source
Optical Design of a Miniaturized Airborne Push-Broom Spectrometer
Applied Sciences, 2020 Combining the requirements of spectrometers for unmanned aerial vehicle platforms, a miniaturized airborne wide-angle push-broom imaging spectrometer with an Offner configuration is designed.
Yang Wang +4 more
doaj +1 more source
Experimental determination of soil moisture on hyperspectral images [PDF]
Компьютерная оптика, 2018 The possibility of humidity determination based on the use of spectral distributions in the wavelength range of up to 1 µm is analyzed. We discuss the use of an imaging hyperspectrometer for precision farming.
Vladimir Podlipnov +4 more
doaj +1 more source
A dual-range spectrometer based on the Offner scheme
Computer Optics, 2016 We considered the feasibility of using a dual-range diffraction grating on the convex mirror in an imaging hyperspectrometer based on the Offner scheme. We conducted modeling in Zemax software. It is shown that the use of a dual-range grating allows one to use the hyperspectrometer based on the Offner scheme in two spectral ranges: the visible and mid ...
R. Skidanov, V. Blank
openaire +1 more source
Modeling the performance of a spaceborne hyperspectrometer based on the offner scheme
Computer Optics, 2015 This article deals with modeling of a hyperspectrometer based on the Offner scheme within geometric optics. We show that at a certain set of parameters, the geometric aberrations are small compared with the size of a conventional CCD matrix sensor. An integral equation for the reconstruction of spectral components of the signal under the overlapping of
N. Kazanskiy +3 more
openaire +1 more source