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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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Thermal stability of Li films on a polycrystalline W substrate
Not Available
Rotational Disorder in Scheelite-Type NaRE(MO4)2 (RE = Rare-Earth, Y; M = Mo, W)
Abstract not provided
Structure, Spin Correlations, and Magnetism of the S = 1/2 Square-Lattice Antiferromagnet Sr 2 CuTe 1– x W x O 6 (0 ≤ x ≤ 1)
Not Available
Recommendation of Orbitals for G 0 W 0 Calculations on Molecules and Crystals
Not provided.
Operando Calorimetry Investigation of Particle Size Effects on Heat Generation in Wadsley–Roth (W 0.2 V 0.8 ) 3 O 7 -Based Electrodes
Not Available
Identification of Exciton Complexes in Charge-Tunable Janus W Se S Monolayers
Not provided.
Attosecond intra-valence band dynamics and resonant-photoemission delays in W(110)
Time-resolved photoelectron spectroscopy with attosecond precision provides new insights into the photoelectric effect and gives information about the timing of photoemission from different electronic states within the electronic band structure of solids. Electron transport, scattering phenomena and electron-electron correlation effects can be observed on attosecond time scales by timing photoemission from valence band states against that from core states. However, accessing intraband effects was so far particularly challenging due to the simultaneous requirements on energy, momentum and time resolution. Here we report on an experiment utilizing intracavity generated attosecond pulse trains to meet these demands at high flux and high photon energies to measure intraband delays between sp- and d- band states in the valence band photoemission from tungsten and investigate final-state effects in resonant photoemission.
w Mel replacement of dengue-competent mosquitoes is robust to near-term climate change
Rising temperatures are impacting the range and prevalence of mosquito-borne diseases. A promising biocontrol technology replaces wild mosquitoes with those carrying the virus-blocking Wolbachia bacterium. Because the most widely used strain, wMel, is adversely affected by heat stress, we examined how global warming may influence wMel-based replacement. We simulated interventions in two locations with successful field trials using Coupled Model Intercomparison Project Phase 5 climate projections and historical temperature records, integrating empirical data on wMel’s thermal sensitivity into a model of Aedes aegypti population dynamics to evaluate introgression and persistence over one year. We show that in Cairns, Australia, climatic futures necessitate operational adaptations for heatwaves exceeding two weeks. In Nha Trang, Vietnam, projected heatwaves of three weeks and longer eliminate wMel under the most stringent assumptions of that symbiont’s thermal limits. We conclude that this technology is generally robust to near-term (2030s) climate change. Accelerated warming may challenge this in the 2050s and beyond.