Results 21 to 30 of about 180,242 (261)

High-resolution Transmission Spectroscopy of the Terrestrial Exoplanet GJ 486b

The Astronomical Journal, 2023
Terrestrial exoplanets orbiting M-dwarf stars are promising targets for transmission spectroscopy with existing or near-future instrumentation. The atmospheric composition of such rocky planets remains an open question, especially given the high X-ray ...
Andrew Ridden-Harper, Stevanus K. Nugroho, Laura Flagg, Ray Jayawardhana, Jake D. Turner, Ernst de Mooij, Ryan MacDonald, Emily Deibert, Motohide Tamura, Takayuki Kotani, Teruyuki Hirano, Masayuki Kuzuhara, Masashi Omiya, Nobuhiko Kusakabe   +13 more
doaj   +1 more source

Transmission versus reflectance spectroscopy for quantitation [PDF]

Journal of Biomedical Optics, 2018
The objective of this work was to compare the accuracy of analyte concentration estimation when using transmission versus diffuse reflectance spectroscopy of a scattering medium. Monte Carlo ray tracing of light through the medium was used in conjunction with pure component absorption spectra and Beer-Lambert absorption along each ray's pathlength to ...
openaire   +2 more sources

The Exoplanet Transmission Spectroscopy Imager (ETSI) [PDF]

Ground-based and Airborne Instrumentation for Astronomy VIII, 2020
We present the design of a novel instrument tuned to detect transiting exoplanet atmospheres. The instrument, which we call the exoplanet transmission spectroscopy imager (ETSI), makes use of a new technique called common-path multi-band imaging (CMI).
Limbach, Mary Anne, Schmidt, Luke M., DePoy, D. L., Mason, Jeffrey C., Scobey, Mike, Brown, Pat, Taylor, Chelsea, Marshall, Jennifer L.   +7 more
openaire   +2 more sources

Real-Time Cell Gap Estimation in LC-Filled Devices Using Lightweight Neural Networks for Edge Deployment

Nanomaterials
Accurate determination of the liquid crystal (LC) cell gap after filling is essential for ensuring device performance in LC-based optical applications. However, the introduction of birefringent materials significantly distorts the transmission spectrum ...
Chi-Yen Huang, You-Lun Zhang, Su-Yu Liao, Wen-Chun Huang, Jiann-Heng Chen, Bo-Chang Dong, Che-Ju Hsu, Chun-Ying Huang   +7 more
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Egg Freshness Evaluation Using Transmission and Reflection of NIR Spectroscopy Coupled Multivariate Analysis

Foods, 2021
This work presents a novel work for the detection of the freshness of eggs stored at room temperature and refrigerated conditions by the near-infrared (NIR) spectroscopy and multivariate models. The NIR spectroscopy of diffuse transmission and reflection
Fuyun Wang, Hao Lin, Peiting Xu, Xiakun Bi, Li Sun   +4 more
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Online Detection of Dry Matter in Potatoes Based on Visible Near-Infrared Transmission Spectroscopy Combined with 1D-CNN

Agriculture
More efficient resource utilization and increased crop utilization rate are needed to address the growing demand for food. The efficient quality testing of key agricultural products such as potatoes, especially the rapid testing of key nutritional ...
Yalin Guo, Lina Zhang, Zhenlong Li, Yakai He, Chengxu Lv, Yongnan Chen, Huangzhen Lv, Zhilong Du   +7 more
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Extracting Complex Dielectric Properties From Reflection-Transmission Mode Spectroscopy

IEEE Access, 2018
Material characterization of homogeneous dielectric slabs using reflection-transmission mode spectroscopy can be problematic due to the ambiguity from a phasor term.
Jingye Sun, Stepan Lucyszyn
doaj   +1 more source

Transformation of aqueous protein attenuated total reflectance infra-red absorbance spectroscopy to transmission

QRB Discovery, 2020
Infrared (IR) spectroscopy is increasingly being used to probe the secondary structure of proteins, especially for high-concentration samples and biopharmaceuticals in complex formulation vehicles.
Alison Rodger, Michael J. Steel, Sophia C. Goodchild, Nikola P. Chmel, Andrew Reason   +4 more
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Detection of Water Content of Watermelon Seeds Based on Hyperspectral Reflection Combined with Transmission Imaging

Agriculture
Watermelon is a widely cultivated fruit and vegetable that is native to Africa and has become one of the world’s important summer fruits. Watermelon seed vigor has a critical impact on watermelon planting and yield, and seed water content is a key factor
Siyi Ouyang, Siwei Lv, Bin Li
doaj   +1 more source

Antioxidant activity and sun screening effects of Bacterial melanin

Journal of BioScience and Biotechnology, 2020
The present work was delineated to formulate and evaluate antioxidant and photoprotective properties of melanin produced by Pseudomonas mosseliistrain STSGRDS1 against the purchased fungal melanin STSGRDM1 as standard. Initially,
Sharmila D.Srimathi, Trisha P.A.Mary, Arya R Krishna, Jayaprabha C., Swathy Krishna J., Suganthi Ramasamy   +5 more
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