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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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Molecular and cellular studies evaluating a potent 2-cyanoindolizine catechol diether NNRTI targeting wildtype and Y181C mutant HIV-1 reverse transcriptase.
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Self-adaptive FeP@C nanocages for reversible and long-term lithium-ion batteries
Abstract not provided
Achieving High Energy Density through Increasing the Output Voltage: A Highly Reversible 5.3 V Battery
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Separation of rare earth element radioisotopes by reverse-phase high-speed counter-current chromatography
Analytical scale purification of rare earth element (REE) radioisotopes is typically accomplished using cation-exchange resins (e.g. AG 50W-X8) and high-performance liquid chromatography (HPLC). Despite the variety of improvements made since the development of this separation process in the 1950s, nearest neighbor separations remain a challenge, as does the issue of irreversible sample adsorption. Herein, we report a study that evaluates the potential of high-speed counter-current chromatography (HSCCC) as an alternative method for purifying REE elements, with specific reference to separations of fission product REE of interest to nuclear forensics. Complementary HSCCC REE separation experiments, one spiked with radiotracer and REE fission product activity, allowed for in depth analysis of resulting fractions from both an elemental (inductively coupled plasma atomic emission spectroscopy, ICP-AES) and radiological (gamma-ray spectrometry, beta counting) purity perspective. The highly reproducible nature of separation profiles generated from HSCCC instruments was leveraged to simplify work-up of samples containing radioisotopes. Subsequent radioanalytical evaluation revealed minimal carryover of Eu into neighboring Sm and Tb fractions (as indicated by presence of 150Eu), and trace contamination of the Tb fraction with Y (as indicated by presence of 91Y). Subtle differences in stationary phase retention across the two columns were reflected in significant variations in decontamination factors of duplicate parallel separations. Furthermore, these differences paired with obtained distribution of radioisotopes provided valuable insights into future improvements. Collectively, this study represents a significant step forward in development of HSCCC technology for task specific REE radioisotope purification.
Impact of small molecule and reverse poloxamer addition on the micellization and gelation mechanisms
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Active-salinity-control reverse osmosis desalination as a flexible load resource
Not Available
The solution-diffusion model for water transport in reverse osmosis: What went wrong?
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Trajectory optimization for temporally multi-staged batch counterflow reverse osmosis
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Covalent and noncovalent strategies for targeting Lys102 in HIV-1 reverse transcriptase
Not provided.
Enhancing thermal management in a reversible solid oxide cell system utilizing thermal energy storage
Not Available
Performance analysis of a MW-scale reversible solid oxide cell energy storage system utilizing steam-hydrogen chemistry
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Performance analysis of a 1 MW reversible solid oxide system for flexible hydrogen and electricity production
Not Available