Dec, 2026
Journal
Arctic tundra ecosystems are severely nitrogen (N) limited, largely due to low inputs of N via fixation and slow decomposition rates. Traditionally, protein depolymerization has been considered the step regulating arctic N availability, with microbes believed to be chronically N limited, resulting in a tightly conserved, predominantly organic, N cycle. This paradigm has be…
Dec, 2026
Journal
Industrial Computer Numerical Control (CNC) machines provide access to operational data through standardized communication protocols like OPC-UA and MTConnect; However, these data streams are typically sampled at low and irregular rates, limiting their direct use for spatially resolved process analysis. Sparse reporting, variable sample counts across nominally identical ru…
Dec, 2026
Journal
This study correlated the thermally induced distortion of large-format additive manufacturing (LFAM) printed composite structures to the alignment of reinforcing fibers. During LFAM material extrusion, shear forces near the nozzle wall align reinforcing fibers in the print direction (x-axis). This produces a complex microstructure comprised of a “shell” of highly aligned f…
Dec, 2026
Journal
Iron is a key ductility-limiting impurity in secondary Al-Si alloys that is responsible for impeding their widespread use in structural applications. An Al-7Si-0.3 Mg alloy with 0.5% Cu and 1% Fe (all in wt.%) was fabricated via laser powder-bed fusion to explore new microstructure engineering pathways with this processing route. While highly refined β-Al5FeSi intermetalli…
Dec, 2026
Journal
The first experimental measurements of a novel non-resonant divertor (NRD) magnetic topology, to exhaust particles and heat in stellarator plasmas, yields an order of magnitude improvement in strike line resiliency when compared to an island divertor. The NRD concept leverages resilient invariant manifolds near sharp flux surface boundaries in an otherwise chaotic magnetic…
Dec, 2026
Journal
Resistive random-access memory (ReRAM) is a promising nonvolatile memory technology. Most ReRAMs exhibit a fundamental tradeoff; filament-type ReRAM provides long data retention but suffers from poor uniformity and high switching current, whereas nonfilamentary ReRAM shows lower-current, area-dependent switching but poor retention. We present a two-terminal Ta2O5/TaOx resi…
Dec, 2026
Journal
Fuel Fragmentation, Relocation, and Dispersal (FFRD) is a critical safety concern for high-burnup fuel (up to ∼75 GWd/MTU) during a Loss of Coolant Accident (LOCA). However, owing to the complex stochastic nature of fuel dispersal and the scarcity of experimental data, current predictive models heavily rely on excessively conservative assumptions. To address this, a compre…
Dec, 2026
Journal
Germanium (Ge) is a critical element for advanced optical, electronic, energy, and defense technologies, but its recovery from low-grade secondary resources remains challenging because of its dilute concentration and complex impurity matrices. In this study, Ge was selectively recovered from low-grade zinc mine tailings through oxalic acid leaching followed by tributyl pho…
Dec, 2026
Journal
Modern magnetically confined fusion reactor designs depend heavily on the efficient operation of breeding blankets, where magnetohydrodynamics (MHD) plays a central role in shaping coolant dynamics and performance. Accurate simulations are critical to understanding the interplay of fluid flow, electromagnetic forces, and heat transfer in these complex systems, enabling the…
Dec, 2026
Journal
Lithium- and manganese-rich (LMR) layered oxides are high-capacity cathode materials that are being considered for electric vehicle (EV) lithium-ion batteries (LIBs). Here, we investigate the electrochemical cycling behavior of cells containing a cobalt-free LMR oxide, 0.3Li2MnO3·0.7LiMn0.5Ni0.5O2, paired with either Li or graphite anodes. Two- and three-electrode cells ar…
Dec, 2026
Journal
At a spallation neutron source, neutron pulses of varying energies are generated, and the detection of neutrons by instrument detectors is recorded as time-of-flight from the emission of the neutron pulse to its arrival at specific detector pixels with high time resolution. The flight path of neutrons from the moderator to the sample and then to the detector must be precis…