Far-infrared imaging spectroscopy with SAFIRE on SOFIA

2003 ◽  
Author(s):  
Dominic J. Benford ◽  
S. H. Moseley ◽  
Gordon J. Stacey ◽  
Richard A. Shafer ◽  
Johannes G. Staguhn
Keyword(s):  
Infrared Imaging ◽  
Imaging Spectroscopy ◽  
Far Infrared

scholarly journals Flavonoids improve drought tolerance of maize seedlings by regulating the homeostasis of reactive oxygen species

2021 ◽  
Author(s):  
Baozhu Li ◽  
Ruonan Fan ◽  
Guiling Sun ◽  
Ting Sun ◽  
Yanting Fan ◽  
...  
Keyword(s):  
Free Radicals ◽  
Drought Stress ◽  
Drought Tolerance ◽  
Infrared Imaging ◽  
Oxygen Free Radicals ◽  
Transcriptome Profiling ◽  
Far Infrared ◽  
Drought Treatment ◽  
Physiological Characterization ◽  
Oxidative Damages

Abstract Background and aims As drought threatens the yield and quality of maize (Zea mays L.), it is important to dissect the molecular basis of maize drought tolerance. Flavonoids, participate in the scavenging of oxygen free radicals and alleviate stress-induced oxidative damages. This study aims to dissect the function of flavonoids in the improvement of maize drought tolerance. Methods Using far-infrared imaging screening, we previously isolated a drought overly insensitivity (doi) mutant from an ethyl methanesulfonate (EMS)-mutagenized maize library and designated it as doi57. In this study, we performed a physiological characterization and transcriptome profiling of doi57 in comparison to corresponding wild-type B73 under drought stress. Results Under drought stress, doi57 seedlings displayed lower leaf-surface temperature (LST), faster water loss, and better performance in growth than B73. Transcriptome analysis reveals that key genes involved in flavonoid biosynthesis are enriched among differentially expressed genes in doi57. In line with these results, more flavonols and less hydrogen peroxide (H2O2) were accumulated in guard cells of doi57 than in those of B73 with the decrease of soil water content (SWC). Moreover, the capacity determined from doi57 seedling extracts to scavenge oxygen free radicals was more effective than that of B73 under the drought treatment. Additionally, doi57 seedlings had higher photosynthetic rates, stomatal conductance, transpiration rates, and water use efficiency than B73 exposed to drought stress, resulting in high biomass and greater root/shoot ratios in doi57 mutant plants. Conclusion Flavonoids may facilitate maize seedling drought tolerance by lowering drought-induced oxidative damage as well regulating stomatal movement.

Migrating from superconducting to semiconducting YBCO thin film bolometers as future far-infrared imaging pixels

2010 ◽  
Author(s):  
Vishal S. Jagtap ◽  
Mattia Longhin ◽  
Mukesh K. Kulsreshath ◽  
Alain J. Kreisler ◽  
Annick F. Dégardin
Keyword(s):  
Thin Film ◽  
Infrared Imaging ◽  
Far Infrared ◽  
Ybco Thin Film

scholarly journals Deep ISOPHOT far-infrared imaging of M 86

2002 ◽  
Vol 397 (2) ◽  
pp. 503-515 ◽  
Author(s):  
M. Stickel ◽  
J. N. Bregman ◽  
A. C. Fabian ◽  
D. A. White ◽  
D. M. Elmegreen
Keyword(s):  
Infrared Imaging ◽  
Far Infrared

A mapping of tropospheric Jovian species from ground-based and Galileo infrared imaging spectroscopy

1997 ◽  
Vol 19 (8) ◽  
pp. 1287
Author(s):  
Th. Encrenaz ◽  
P. Drossart ◽  
C. Hsiuming ◽  
M. Roos
Keyword(s):  
Infrared Imaging ◽  
Imaging Spectroscopy

Far Infrared Imaging Sensor for Mass Production of Night Vision and Pedestrian Detection Systems

2012 ◽  
pp. 301-312 ◽  
Author(s):  
Emmanuel Bercier ◽  
Patrick Robert ◽  
David Pochic ◽  
Jean-Luc Tissot ◽  
Agnes Arnaud ◽  
...  
Keyword(s):  
Mass Production ◽  
Infrared Imaging ◽  
Pedestrian Detection ◽  
Far Infrared ◽  
Night Vision ◽  
Detection Systems ◽  
Imaging Sensor

scholarly journals A 158μm [CII] Map of NGC 6946: Detection in Extragalactic Atomic and Ionized Gas

1992 ◽  
Vol 150 ◽  
pp. 117-119
Author(s):  
S. C. Madden ◽  
N. Geis ◽  
R. Genzel ◽  
F. Herrmann ◽  
A. Poglitsch ◽  
...  
Keyword(s):  
Infrared Imaging ◽  
Line Emission ◽  
Far Infrared ◽  
Max Planck ◽  
Ionized Gas ◽  
Ob Stars ◽  
Ngc 6946 ◽  
Total Luminosity ◽  
Fabry Perot ◽  
External Galaxies

The first observations of the [CII] line toward the nuclei of gas-rich external galaxies, showed that the far-infrared line emission contributes up to 1% of the total luminosity and most likely originates from dense photon-dominated regions (PDRs) associated with the surfaces of molecular clouds exposed to FUV from external or embedded OB stars (Crawford et al. 1985, Lugten et al. 1986, Stacey et al. 1991). We have mapped the [CII] emission toward NGC 6946 over an 8' × 6' (23 × 17 kpc) (Madden et al. 1991) using the Max-Planck Instutute/U.C.Berkeley Far-Infrared Imaging Fabry-Perot Interferometer (FIFI) on the Kuiper Airborne Observatory (KAO).

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