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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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The Boson Peak in Deeply-Cooled Confned Water: a Possible Way to Explore the Existence of the Liquid-to-Liquid Transition in Water
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Gas-Induced Motion of an Object in a Liquid-Filled Housing During Vibration: I. Analysis.
Abstract not provided.
Gas-Induced Motion of an Object in a Liquid-Filled Housing during Vibration: II. Experiments.
Abstract not provided.
Direct observation of an abrupt insulator to metal transition in dense liquid deuterium.
Abstract not provided.
Observation of a nematic quantum Hall liquid on the surface of bismuth
Nematic quantum fluids with wave functions that break the underlying crystalline symmetry can form in interacting electronic systems. We examined the quantum Hall states that arise in high magnetic fields from anisotropic hole pockets on the Bi(111) surface. Spectroscopy performed with a scanning tunneling microscope showed that a combination of single-particle effects and many-body Coulomb interactions lift the six-fold Landau level (LL) degeneracy to form three valley-polarized quantum Hall states. We imaged the resulting anisotropic LL wave functions and found that they have a different orientation for each broken-symmetry state. The wave functions correspond to those expected from pairs of hole valleys and provide a direct spatial signature of a nematic electronic phase.
Na + -gated water-conducting nanochannels for boosting CO 2 conversion to liquid fuels
Robust, gas-impeding water-conduction nanochannels that can sieve water from small gas molecules such as hydrogen (H 2 ), particularly at high temperature and pressure, are desirable for boosting many important reactions severely restricted by water (the major by-product) both thermodynamically and kinetically. Identifying and constructing such nanochannels into large-area separation membranes without introducing extra defects is challenging. We found that sodium ion (Na + )–gated water-conduction nanochannels could be created by assembling NaA zeolite crystals into a continuous, defect-free separation membrane through a rationally designed method. Highly efficient in situ water removal through water-conduction nanochannels led to a substantial increase in carbon dioxide (CO 2 ) conversion and methanol yield in CO 2 hydrogenation for methanol production.
Solid–liquid phase transition in a Gibbs monolayer of melissic acid at the n-hexane–water interface
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Cellulose polymorphs and physical properties of cotton fabrics processed with commercial textile mills for mercerization and liquid ammonia treatments
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Xenon Gas and Liquid Phase Concentrations with/without Off-System in the Iodine Liquid of the MSRE Loop
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Liquid-Liquid Separation Process
The 3M Company, in collaboration with the National Renewable Energy Laboratory (NREL) and others, will develop the concept of the membrane solvent-extraction (MSE) technology for water removal and verify the technology at a pilot scale for bio-ethanol production to increase energy and water savings.
Microfluidic Liquid-Liquid Contactors
This report describes progress made on the microfluidic contactor. A model was developed to predict its failure, a surrogate chemical system was selected to demonstrate mass transfer, and an all-optical system has been invented and implemented to monitor carryover and flowrates.
Modeling Marangoni Effect in Liquid-Liquid Microfluidic Systems
No abstract provided.
Liquid-Liquid Extraction of Iron in Hydrochloric Acid with Quaternary Amines in Microfluidic Devices.
No abstract provided.