JIRAM Research Articles

Multiple‐wavelength sensing of Jupiter during the Juno mission's first perijove passage

AbstractWe compare Jupiter observations made around 27 August 2016 by Juno's JunoCam, Jovian Infrared Auroral Mapper (JIRAM), MicroWave Radiometer (MWR) instruments, and NASA's Infrared Telescope Facility. Visibly dark regions are highly correlated with bright areas at 5 µm, a wavelength sensitive to gaseous NH3 gas and particulate opacity at p ≤5 bars. A general correlation between 5‐µm and microwave radiances arises from a similar dependence on NH3 opacity. Significant exceptions are present and probably arise from additional particulate opacity at 5 µm. JIRAM spectroscopy and the MWR derive consistent 5‐bar NH3 abundances that are within the lower bounds of Galileo measurement uncertainties. Vigorous upward vertical transport near the equator is likely responsible for high NH3 abundances and with enhanced abundances of some disequilibrium species used as indirect indicators of vertical motions.

Juno’s Earth flyby: the Jovian infrared Auroral Mapper preliminary results

The Jovian InfraRed Auroral Mapper, JIRAM, is an image-spectrometer onboard the NASA Juno spacecraft flying to Jupiter. The instrument has been designed to study the aurora and the atmosphere of the planet in the spectral range 2–5 μm. The very first scientific observation taken with the instrument was at the Moon just before Juno’s Earth fly-by occurred on October 9, 2013. The purpose was to check the instrument regular operation modes and to optimize the instrumental performances. The testing activity will be completed with pointing and a radiometric/spectral calibrations shortly after Jupiter Orbit Insertion. Then the reconstruction of some Moon infrared images, together with co-located spectra used to retrieve the lunar surface temperature, is a fundamental step in the instrument operation tuning. The main scope of this article is to serve as a reference to future users of the JIRAM datasets after public release with the NASA Planetary Data System.

JIRAM, the Jovian Infrared Auroral Mapper

JIRAM is an imager/spectrometer on board the Juno spacecraft bound for a polar orbit around Jupiter. JIRAM is composed of IR imager and spectrometer channels. Its scientific goals are to explore the Jovian aurorae and the planet’s atmospheric structure, dynamics and composition. This paper explains the characteristics and functionalities of the instrument and reports on the results of ground calibrations. It discusses the main subsystems to the extent needed to understand how the instrument is sequenced and used, the purpose of the calibrations necessary to determine instrument performance, the process for generating the commanding sequences, the main elements of the observational strategy, and the format of the scientific data that JIRAM will produce.

JIRAM, the Image Spectrometer in the Near Infrared on Board the Juno Mission to Jupiter

The Jovian InfraRed Auroral Mapper (JIRAM) has been accepted by NASA for inclusion in the New Frontiers mission "Juno," which will launch in August 2011. JIRAM will explore the dynamics and the chemistry of Jupiter's auroral regions by high-contrast imaging and spectroscopy. It will also analyze jovian hot spots to determine their vertical structure and infer possible mechanisms for their formation. JIRAM will sound the jovian meteorological layer to map moist convection and determine water abundance and other constituents at depths that correspond to several bars pressure. JIRAM is equipped with a single telescope that accommodates both an infrared camera and a spectrometer to facilitate a large observational flexibility in obtaining simultaneous images in the L and M bands with the spectral radiance over the central zone of the images. Moreover, JIRAM will be able to perform spectral imaging of the planet in the 2.0-5.0 microm interval of wavelengths with a spectral resolution better than 10 nm. Instrument design, modes, and observation strategy will be optimized for operations onboard a spinning satellite in polar orbit around Jupiter. The JIRAM heritage comes from Italian-made, visual-infrared imaging spectrometers dedicated to planetary exploration, such as VIMS-V on Cassini, VIRTIS on Rosetta and Venus Express, and VIR-MS on the Dawn mission.

ChemInform Abstract: THIOPHENES, PYRAZOLOTHIOPHENES AND PYRIMIDOTHIOPHENES AS PESTICIDES

Chemischer InformationsdienstVolume 10, Issue 50 Heterocyclic Compounds ChemInform Abstract: THIOPHENES, PYRAZOLOTHIOPHENES AND PYRIMIDOTHIOPHENES AS PESTICIDES VISHNU JI RAM VISHNU JI RAM, VISHNU JI RAM VISHNU JI RAMSearch for more papers by this author VISHNU JI RAM VISHNU JI RAM, VISHNU JI RAM VISHNU JI RAMSearch for more papers by this author First published: December 11, 1979 https://doi.org/10.1002/chin.197950205AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume10, Issue50December 11, 1979 RelatedInformation

R(+)-1,2-Bis(4-substituted-1,2,4-triazoline-5-thione-3-yl)glycol and related compounds as potential pesticides.

Archiv der PharmazieVolume 311, Issue 11 p. 968-971 Kurzmitteilung R(+)-1,2-Bis(4-substituted-1,2,4-triazoline-5-thione-3-yl)glycol and Related Compounds as Potential Pesticides Dr. Vishnu Ji Ram, Corresponding Author Dr. Vishnu Ji Ram Department of Chemistry, S.C. College, Ballia (U.P.) IndiaDept. of Chemistry, S.C. College, Ballia (U.P.), IndiaSearch for more papers by this author Dr. Vishnu Ji Ram, Corresponding Author Dr. Vishnu Ji Ram Department of Chemistry, S.C. College, Ballia (U.P.) IndiaDept. of Chemistry, S.C. College, Ballia (U.P.), IndiaSearch for more papers by this author First published: 1978 https://doi.org/10.1002/ardp.19783111114Citations: 2AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Citing Literature Volume311, Issue111978Pages 968-971 RelatedInformation

ChemInform Abstract: DIE SYNTH. VON 1‐HALOGENPHENYL‐1H‐PYRAZOLO(4,3‐C)PYRIDINEN

Chemischer InformationsdienstVolume 3, Issue 16 Heterocyclic Compounds ChemInform Abstract: DIE SYNTH. VON 1-HALOGENPHENYL-1H-PYRAZOLO(4,3-C)PYRIDINEN VISHNU JI RAM VISHNU JI RAM, VISHNU JI RAM VISHNU JI RAMSearch for more papers by this authorR. P. RAO, R. P. RAOSearch for more papers by this author VISHNU JI RAM VISHNU JI RAM, VISHNU JI RAM VISHNU JI RAMSearch for more papers by this authorR. P. RAO, R. P. RAOSearch for more papers by this author First published: April 18, 1972 https://doi.org/10.1002/chin.197216301Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume3, Issue16April 18, 1972 RelatedInformation

Atsugewi Morphology I: Verb Inflection

Previous articleNext article No AccessAtsugewi Morphology I: Verb InflectionD. L. OlmstedD. L. Olmsted Search for more articles by this author PDFPDF PLUS Add to favoritesDownload CitationTrack CitationsPermissionsReprints Share onFacebookTwitterLinkedInRedditEmail SectionsMoreDetailsFiguresReferencesCited by International Journal of American Linguistics Volume 27, Number 2Apr., 1961 Article DOIhttps://doi.org/10.1086/464613 Views: 10Total views on this site Citations: 3Citations are reported from Crossref PDF download Crossref reports the following articles citing this article:Vishnu Ji Ram, Arun Sethi, Mahendra Nath, Ramendra Pratap Six-Membered Heterocycles, (Jan 2019): 3–391.https://doi.org/10.1016/B978-0-12-819210-8.00002-3Carmen Jany The role of passives in the formation of hierarchical systems in Northern California, (Apr 2016): 33–66.https://doi.org/10.1075/slcs.173.03janHannah J. Haynie Deep relationships among California languages, Diachronica 31, no.33 (Nov 2014): 407–447.https://doi.org/10.1075/dia.31.3.04hay