Anupam K Misra

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(blue [3]) with terrestrial standard samples (red). Introduction: The extreme Venus surface temperature (740K) and atmospheric pressure (93 atm) creates a challenging environment for future lander missions. The scientific investigations capable of Ve-nus geochemical observations must be completed within several hours of the landing before the lander will be(More)
Introduction: Raman spectroscopy (RS) has been proposed as a candidate analysis system for missions to Mars and, more recently, as a potential mineralogi-cal analysis system for Venus [e.g., 1,2]. This technique has several distinct advantages over other spec-troscopic techniques that have been used on past missions , specifically including the capability(More)
We report time-resolved (TR) remote Raman spectra of minerals under supercritical CO(2) (approx. 95 atm pressure and 423 K) and under atmospheric pressure and high temperature up to 1003 K at distances of 1.5 and 9 m, respectively. The TR Raman spectra of hydrous and anhydrous sulphates, carbonate and silicate minerals (e.g. talc, olivine, pyroxenes and(More)
Overview: Exploration of minerals and search for water, carbon and evidence of biomarker has become an important part of NASA's planatary missions in order to search for of life on other planets. Water has been detected on Mars in the form of ice and in hy-drous minerals. Among the various techniques for detecting water, ice, and H 2 O/OH bearing minerals,(More)
Overview: Detection of water and carbon is important in order to support existence of life on other planets. Water has been detected on Mars and Moon in the form of ice and in hydrous minerals. Among the various techniques to detect water, ice, and H 2 O/OH bearing minerals, Raman spectroscopy stands out as providing distinctive spectra for unambiguous(More)
Swell–shrink soils generate wide and deep cracks, generally considered undesirable for crop husbandry. However, there is a lack of information about the management options available to reduce formation of wide and deep cracks in such soil. Therefore, the present study was conducted on an Entic Chromusterts. The results revealed that width (mm) and depth(More)
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