Materials Literature
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This study is focused on defining and optimizing the design parameters of inherently safe “battery” type sodium-cooled metallic-fueled nuclear reactor cores that operate on a single stationary fuel loading at full power for 30 years. A total of 29 core designs were developed with varying power and flow conditions, inc…
Flowerlike noble-metal-free γ-Fe2O3@NiO core-shell hierarchical nanostructures have been fabricated and examined as a catalyst in the photocatalytic oxidation of water with [Ru(bpy)3](ClO4)2 as a photosensitizer and Na2S2O8 as a sacrificial electron acceptor. An apparent TOF of 0.29 μmols(-1) m(-2) and oxygen yield of…
The adsorption and desorption of halogen and other gaseous species from surfaces is a key fundamental process for both wet chemical and dry plasma etch and clean processes utilized in nanoelectronic fabrication processes. Therefore, to increase the fundamental understanding of these processes with regard to aluminum n…
A selective synthesis of 12 R /10 H polytypes within the Ba–Ce–Mn–O family can be induced by a Mn precursor.
Nickel-based superalloys are the materials of choice in the hot section of current gas turbines, but they are reaching temperature limits constrained by their melting temperature range. Co–Re alloy development was prompted by a search for new materials for future gas turbines, where the temperature of application will…
Although the breakdown of the continuum model at the nanoscale has been predicted, the origin of failure is not well understood. This in turn has affected our better understanding of interparticle forces. In this work, the interaction forces including the van der Waals (vdW) attraction, Born repulsion and mechanical c…
Abstract We present a new procedure for the site‐specific deposition of metal on semiconductor nanofibers (NF). The semiconductor NFs are exposed to an external electric field while irradiated with UV light. This coupling allows the generation of excited electron–hole couples and drives them to the opposite extremitie…
Abstract Natural proteins have evolved amino acid sequences that provide a native‐structural bias to folding. Structure‐based models (SBMs) of proteins ignore all non‐native interactions and encode this bias by including only interactions present in the native state. SBMs have been remarkably successful at describing…
Correlated inter-domain motions in proteins can mediate fundamental biochemical processes such as signal transduction and allostery. Here we characterize at structural level the inter-domain coupling in a multidomain enzyme, Adenylate Kinase (AK), using computational methods that exploit the shape information encoded…
We demonstrate that fast anodic etching of bulk crystalline substrates of n-InP via photolithographically defined windows leads to the formation of nanomembranes and nanowires being promising for device applications. It is shown that, under potentiostatic etching conditions, the morphology of etched samples strongly d…
We propose a new class of models providing a powerful unification and extension of existing statistical methodology for analysis of data obtained in mixture experiments. These models, which integrate models proposed by Scheffé and Becker, extend considerably the range of mixture component effects that may be described…
To improve our ability to predict SOC mineralization response to residue and N additions in soils with different inherent and dynamic organic matter properties, a 330-day incubation was conducted using samples from two long-term experiments (clay loam Mollisols in Iowa [IAsoil] and silt loam Ultisols in Maryland [MDso…
New designs are proposed for 2×2 electro-optical switching in the 1.3–12 μm wavelength range. Directional couplers are analyzed using a two-dimensional effective-index approximation. It is shown that three or four side-coupled Si or Ge channel waveguides can provide complete crossbar broad-spectrum switching when the…
Abstract Anatase titanium(IV) oxide (TiO 2 ) particles with exposed {001} and {101} facets were prepared by hydrothermal treatment of amorphous TiO 2 with H 2 O 2 –NH 3 solution. Crystal phase, shape, and size of TiO 2 particles are found to be greatly dependent on the ratio of H 2 O 2 –NH 3 solution. The prepared TiO…
Hierarchically structured m-BiVO4 crystals with twin-ball-like, cauliflower-like, pinwheel-like, columnar and spherical morphologies were synthesized by a facile one-pot method in the presence of soluble starch. The physicochemical properties of the material were characterized by means of XRD, SEM, HRTEM/SAED, UV-vis…
Jojoba oil is a diene composed of two monounsaturated hydrocarbon chains linked by an ester moiety. Ruthenium catalysed cross-metathesis (CM) reactions of the oil produced ADMET oligomers and hydrocarbon by-products under various conditions. Both the polyester oligomers and the hydrocarbon distillates were analysed by…
The difference between the mechanical properties of a material at the surface and in the bulk is an open issue in polymer science. We studied the mechanical surface properties of polypropylene using atomic force microscopy in peak-force tapping mode. The bulk properties were obtained from layer-by-layer measurements o…
Abstract Graphitic carbon nitride (g‐C 3 N 4 ) was synthesized by heating melamine and was then treated with sodium hydroxide solution under a hydrothermal condition to obtain g‐C 3 N 4 with a large specific surface area (HSSA). HSSA shows higher photocatalytic activity for decomposition of acetaldehyde than that of o…
Jammed states of frictional granular systems can be induced by shear strain at densities below the isostatic jamming density . It remains unclear, however, how much friction affects this so-called shear jamming. Friction appears in two ways in this type of experiment: friction between particles, and friction between p…
BACKGROUND: Sonothrombolysis is safe and may increase the likelihood of early recanalization in acute ischemic stroke patients. AIMS: In preparation of a phase III clinical trial, we contrast the likelihood of achieving a sustained recanalization and functional independence in a post hoc subgroup analysis of patients…