scholarly journals Near-Infrared Spectroscopy of the Surface of Mars Derived from TIGER Spectro-Imaging Data

1995 ◽  
Vol 149 ◽  
pp. 298-299
Author(s):  
P. Martin ◽  
P.C. Pinet ◽  
R. Bacon ◽  
A. Rousset
Keyword(s):  
Infrared Spectroscopy ◽  
Spatial Resolution ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Western Hemisphere ◽  
Imaging Data ◽  
Integral Field Spectrograph ◽  
Integral Field ◽  
Spectro Imaging

AbstractHigh spectral and spatial resolution telescopic observations of the western hemisphere of Mars, using the integral field spectrograph TIGER at 0.8-1.1 µm, are described.

scholarly journals Integral field near-infrared spectroscopy of II Zw 40

2008 ◽  
Vol 486 (2) ◽  
pp. 393-403 ◽  
Author(s):  
L. Vanzi ◽  
G. Cresci ◽  
E. Telles ◽  
J. Melnick
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Integral Field

scholarly journals Multiple‐Object and Integral Field Near‐Infrared Spectroscopy Using Fibers

1999 ◽  
Vol 111 (765) ◽  
pp. 1451-1468 ◽  
Author(s):  
Roger Haynes ◽  
David Lee ◽  
Jeremy Allington‐Smith ◽  
Robert Content ◽  
George Dodsworth ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Multiple Object ◽  
Integral Field

Integral Field Near‐Infrared Spectroscopy of a Sample of Seyfert and LINER Galaxies. I. The Data

2001 ◽  
Vol 136 (1) ◽  
pp. 61-98 ◽  
Author(s):  
Rafael M. Sosa‐Brito ◽  
Lowell E. Tacconi‐Garman ◽  
Matthew D. Lehnert ◽  
Jack F. Gallimore
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Liner Galaxies ◽  
Integral Field

scholarly journals Application of Deep Learning in the Identification of Cerebral Hemodynamics Data Obtained from Functional Near-Infrared Spectroscopy: A Preliminary Study of Pre- and Post-Tooth Clenching Assessment

2020 ◽  
Vol 9 (11) ◽  
pp. 3475
Author(s):  
Shinya Takagi ◽  
Shigemitsu Sakuma ◽  
Ichizo Morita ◽  
Eri Sugimoto ◽  
Yoshihiro Yamaguchi ◽  
...  
Keyword(s):  
Deep Learning ◽  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Visual Presentation ◽  
Mixed Data ◽  
Imaging Data ◽  
Functional Near Infrared Spectroscopy ◽  
Tooth Clenching ◽  
Preliminary Study

In fields using functional near-infrared spectroscopy (fNIRS), there is a need for an easy-to-understand method that allows visual presentation and rapid analysis of data and test results. This preliminary study examined whether deep learning (DL) could be applied to the analysis of fNIRS-derived brain activity data. To create a visual presentation of the data, an imaging program was developed for the analysis of hemoglobin (Hb) data from the prefrontal cortex in healthy volunteers, obtained by fNIRS before and after tooth clenching. Three types of imaging data were prepared: oxygenated hemoglobin (oxy-Hb) data, deoxygenated hemoglobin (deoxy-Hb) data, and mixed data (using both oxy-Hb and deoxy-Hb data). To differentiate between rest and tooth clenching, a cross-validation test using the image data for DL and a convolutional neural network was performed. The network identification rate using Hb imaging data was relatively high (80‒90%). These results demonstrated that a method using DL for the assessment of fNIRS imaging data may provide a useful analysis system.

scholarly journals Determining mass limits around HD 163296 through SPHERE direct imaging data

2019 ◽  
Vol 488 (1) ◽  
pp. 37-46 ◽  
Author(s):  
D Mesa ◽  
M Langlois ◽  
A Garufi ◽  
R Gratton ◽  
S Desidera ◽  
...  
Keyword(s):  
Near Infrared ◽  
The Other ◽  
Field Of View ◽  
Dual Band ◽  
Imaging Data ◽  
Direct Imaging ◽  
Be Star ◽  
Integral Field Spectrograph ◽  
Ringed Structure ◽  
Integral Field

ABSTRACT HD 163296 is a Herbig Ae/Be star known to host a protoplanetary disc with a ringed structure. To explain the disc features, previous works proposed the presence of planets embedded into the disc. We have observed HD 163296 with the near-infrared (NIR) branch of SPHERE composed by IRDIS (InfraRed Dual-band Imager and Spectrograph) and IFS (integral field spectrograph) with the aim to put tight constraints on the presence of substellar companions around this star. Despite the low rotation of the field of view during our observation we were able to put upper mass limits of few MJup around this object. These limits do not allow to give any definitive conclusion about the planets proposed through the disc characteristics. On the other hand, our results seem to exclude the presence of the only candidate proposed until now using direct imaging in the NIR even if some caution has to be taken considered the different wavelength bands of the two observations.

scholarly journals High Resolution Scanning of Radial Strips cut from Increment Cores by Near Infrared Spectroscopy

IAWA Journal ◽  
2007 ◽  
Vol 28 (4) ◽  
pp. 473-484 ◽  
Author(s):  
P. David Jenes ◽  
Laurence R. Schimleck ◽  
Chi-Leung So ◽  
Alexander Clark III ◽  
Richard F. Daniels
Keyword(s):  
Infrared Spectroscopy ◽  
High Resolution ◽  
Spatial Resolution ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
High Spatial Resolution ◽  
Microfibril Angle ◽  
Wood Property ◽  
Nir Spectroscopy ◽  
Wood Properties

Near infrared (NIR) spectroscopy provides a rapid method for the determination ofwood properties of radial strips. The spatial resolution of the NIR measurements has generally been limited to sections 10mm wide and as a consequence the estimation of wood properties of individual rings or within rings has not been possible. Many different NIR instruments can be used to collect NIR spectra from the surface of radial strips at relatively high spatial resolution and the purpose of this study was to compare wood property calibrations obtained using NIR spectra collected in 5 mm and 2 mm seetions with several different NIR instruments. We found that calibrations based on spectra collected in 5 mm seetions had good statistics, with those based on the Bruker Vector 22/N spectrometer the strongest. Of the three properties examined (density, microfibril angle and stiffness), density had the weakest statistics. When the spatial resolution was decreased to 2 mm, calibration and prediction statistics were weaker than those at 5 mm. RPDp's were relatively low with the highest being 1.76 for predicted stiffness based on NIR spectra obtained using the ASD Field Spec Pro spectrometer. Based on the low RPDp's, we conclude that none of the instruments examined were suitable for scanning radial strips at a spatial resolution of 2 mm.

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