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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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At least 451 records · Page 25

All sources NASA NTRS DOE OSTI

DOE OSTI2023

Assessment of spatially offset Raman spectroscopy to detect differences in bone matrix quality

Not Available

Gautam, Rekha (ORCID:0000000211768491)↗

DOE OSTI2025

Optimizing number of Raman spectra using an artificial neural network guided Monte Carlo simulation approach to analyze human cortical bone

Not Available

Unal, Safa↗

DOE OSTI2021

Protocol for rapid ammonia detection via surface-enhanced Raman spectroscopy

Not Available

Liu, Yuanchao (ORCID:0000000236698071)↗

DOE OSTI2023

Scanning Electron-Raman Cryomicroscopy for Characterization of Nanoparticle-Albumin Drug Products

Not provided.

Chemistry↗

DOE OSTI2023

Old Polymorph, New Technique: Assessing Ritonavir Crystallinity Using Low-Frequency Raman Spectroscopy

Not provided.

Chemistry↗

DOE OSTI2020

Integrated Experimental Characterization of Shales of Varying Thermal Maturation in the Central Appalachian Basin Using Raman and Fourier Transform Infrared Spectroscopy and Atomic Force Microscopy

Not provided.

Energy & Fuels↗

DOE OSTI2022

Label-Free Multiphoton Imaging of Microbes in Root, Mineral, and Soil Matrices with Time-Gated Coherent Raman and Fluorescence Lifetime Imaging

Not Available

54 ENVIRONMENTAL SCIENCES↗

DOE OSTI2023

Quantifying Dense Multicomponent Slurries with In-Line ATR-FTIR and Raman Spectroscopies: A Hanford Case Study

Not Available

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE W↗

DOE OSTI2020

Overcoming Oxidation State-Dependent Spectral Interferences: Online Monitoring of U(VI) Reduction to U(IV) via Raman and UV–vis Spectroscopy

Analytical characterization of chemical processes is an essential component of both industrial processes and fundamental studies. Applicable techniques abound, but optical spectroscopy has the unique combination of being easily incorporated into on-line (in-situ) monitoring probes and can also provide abundant chemical information (concentration, oxidation state, speciation). However, this abundance of chemical information can make applying optical spectroscopy to complex chemical processes challenging. This is particularly evident in the bulk electrolysis of U(VI) to U(IV), an essential preparatory step in some nuclear fuel recycling schemes. Starting and product materials have interfering spectral signatures in both electronic and vibrational spectroscopies, making accurate and real-time analysis difficult to achieve. In this paper, we discuss the application of optical spectroscopy to the on-line monitoring of a bulk electrolysis process and the methods utilized to analyze data as well as characterize the efficiency and mechanism of U(IV) generation.

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗

DOE OSTI2023