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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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Categorization of incongruent TPMS by geometric features using manifold learning and clustering
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Reinforcement learning framework for the mechanical design of microelectronic components under multiphysics constraints
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Strain-induced topological phase transition in ferromagnetic Janus monolayer MnSbBiS 2 Te 2
Strain-induced topological phase transition in the ferromagnetic Janus monolayer MnSbBiS 2 Te 2 is displayed.
Simultaneous Greenhouse Gas and Criteria Pollutants Emissions Reduction for Off Road Powertrains
This report documents the Budget Period 2 (BP2) technical progress, analyses, and results for the U.S. Department of Energy (DOE) Vehicle Technologies Office project titled Simultaneous Greenhouse Gas and Criteria Pollutants Emissions Reduction for Off-Road Powertrains.
Near-adjacent heavy lanthanide separation and sensing using dimerizing lanmodulins
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Characterization of secondary chemical phases formed from fluorescent tagging of aluminum welds.
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Anion-dependent phase behavior of methylimidazolium-based ionic liquids mixed with water: Correlation between local molecular structure and mesoscale behaviors
The mesoscopic phase behavior of decylmethylimidazolium (C 10 mim) ionic liquids (ILs) bearing three monovalent anions—thiocyanate (SCN − ), nitrate (NO 3 − ), and chloride (Cl − )—mixed with water at relatively high IL contents (50–95 wt%) was investigated. Small-angle and wide-angle X-ray scattering (SAXS/WAXS) were employed to follow the evolution of both local and mesoscale structures across this composition range. In the absence of water, C 10 mimSCN and C 10 mimCl behaved as disordered liquids, whereas C 10 mimNO 3 spontaneously formed a hexagonally ordered cylindrical mesophase and displayed a sticky-solid macroscopic appearance. Upon addition of water, C 10 mimSCN remained a viscous liquid and only weakly ordered lamellar domains were observed. This limited ordering is attributed to the lack of hydrogen bonding and weak interaction energy between SCN − anions and C 10 mim + cations. In contrast, the trigonal-planar NO 3 − and point-like Cl − anions promoted the formation of well-defined hexagonal mesophases up to 35–45 wt% water. The formation of hydrogen bonding of the two anions with imidazolium ring protons likely enabled the creation of compact ion clusters that effectively exclude water molecules from the immediate vicinity of the IL aggregates. These findings demonstrate that the interaction energy between ion pairs dictate IL-water interactions and therefore control the transition from disordered liquids to ordered mesophases in IL/water mixtures with high IL contents. In conclusion, the combined SAXS/WAXS analysis reveals a correlation between local intermolecular structure and the emergence of mesoscopic order, providing a systematic framework for tailoring mesoscale structures in alkylimidazolium-based IL/water systems.
HiMu: High Multiplication Subcritical Measurements of Water-Moderated Square-Pitched Low-Enriched Low-Enriched Uranium Dioxide Fuel Rod Lattices (IER-518 CED-4b Report)
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High-entropy solvation chemistry towards affordable and practical Ah-level zinc metal battery
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Designing water resistant high entropy oxide materials
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Homogenization of radiation transport calculations for multi-physics simulations
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Single-component self-assembling protein nanoparticles displaying stabilized prefusion-closed hemagglutinin trimers for influenza vaccine development
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Activation of robust bonds by carbonyl complexes of Mn, Fe and Co
Historic discoveries and recent advances in activation of strong C–H, C–F, and C–O bonds using carbonyl complexes of Mn, Fe, and Co are reviewed.
Facilitated Phase Transformation for Improved Performance of Earth‐Abundant Disordered Rocksalt Materials
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Enhanced thermal response of 3D-printed bilayer hydrogels via nanoclay incorporation
Nanoclay enhances the actuation of thermally-responsive 3D-printed hydrogel bilayers.
Accessing the oceanic uranium reserve
The ocean contains a vast reserve of uranium that could satisfy global demand for generations. A newly proposed covalent organic framework utilizes structural asymmetry to increase uptake rates, enabling more efficient oceanic uranium recovery.