Publications by authors named "L N Mehall"
Article Synopsis
- Perseverance's Mastcam-Z captures detailed stereo and multispectral images, offering a comprehensive view of the geology in Jezero crater on Mars.
- The rocks depicted show features indicating they are of igneous or impactite origin, with minimal water alteration and include various mineral compositions like mafic silicates and olivine.
- Additional imaging reveals important atmospheric conditions, including dust variations and unique interactions caused by dust devils and the Ingenuity helicopter, which aid in understanding Mars' environment and assist in rover operations.
Mastcam-Z is a multispectral, stereoscopic imaging investigation on the Mars 2020 mission's rover. Mastcam-Z consists of a pair of focusable, 4:1 zoomable cameras that provide broadband red/green/blue and narrowband 400-1000 nm color imaging with fields of view from 25.6° × 19.
View Article and Find Full Text PDFIn 2 experiments, dark-cutting (DC) beef strip loins were used to test the effects of citric acid-enhancement pH on visual and instrumental color of fresh and cooked steaks. In Exp. 1 and 2, each DC (mean pH = 6.
View Article and Find Full Text PDFThe purpose of this study was to evaluate the tenderness of beef loin steaks from retail markets in 4 U.S. cities.
View Article and Find Full Text PDFThe Miniature Thermal Emission Spectrometer (Mini-TES) on Opportunity investigated the mineral abundances and compositions of outcrops, rocks, and soils at Meridiani Planum. Coarse crystalline hematite and olivine-rich basaltic sands were observed as predicted from orbital TES spectroscopy. Outcrops of aqueous origin are composed of 15 to 35% by volume magnesium and calcium sulfates [a high-silica component modeled as a combination of glass, feldspar, and sheet silicates (approximately 20 to 30%)], and hematite; only minor jarosite is identified in Mini-TES spectra.
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