Materials Literature
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Abstract Metal‐semiconductor field‐effect transistors (MESFETs) are widely known from opaque high‐speed GaAs or high‐power SiC and GaN technology. For the emerging field of transparent electronics, only metal‐insulator‐semiconductor field‐effect transistors (MISFETs) were considered so far. This article reviews the pr…
Americanae nace como un proyecto conjunto que surge dentro de la Red Europea de Información y Documentación sobre América Latina (REDIAL), y que ha afrontado la Biblioteca de la Agencia Española de Cooperación Internacional para el Desarrollo (AECID). Esta nueva biblioteca virtual hace más accesibles los libros digita…
A vibration-based testing methodology is presented that assesses fatigue behavior of material for metallic structure.To minimize the testing duration, the test setup is designed for a base-excited multiple-specimen arrangement driven in a highfrequency resonant mode, which allows completion of fatigue testing in an ac…
The formation of string-gels of dipolar colloidal particles is investigated using molecular dynamics simulations. The characteristic gelation time consistently increases as the temperature of the system increases; it also increases as the density of the system increases. This latter result suggests that the gel format…
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We elucidated quasi-stationary states of an electron confined in a two-dimensional quantum corral (QC) built up with double barriers having a finite width. It is shown that the Hamiltonian of the QC is not a Hermitian operator for an electron confined in the QC, which results in a complex eigenenergy and the inverse o…
Heavy-ion beams have drawn growing interest for their use in cancer treatment not only due to their high dose localization at the Bragg peak, but also due to the high biological effect in this region. In 1946, R.R. Wilson proposed the clinical applications of protons and heavier ions in the treatment of human cancer (…
The inhibitive action of a newly synthesized glycine derivative, namely 2-(4-(dimethylamino)benzylamino)acetic acid hydrochloride (GlyD) on pitting corrosion of Al in KSCN solutions was studied. Obtained results were compared with glycine (Gly) itself. Cyclic polarization, potentiostatic and galvanostatic measurements…
MIDAS is aimed to be an easy-to-use and comprehensive common source for material properties including both experimental data and models and their parameters. At LLNL, we will develop MIDAS to be the central repository for material strength related data and models with the long-term goal to encompass other material pro…
A series of transition metal complexes, Cr(III), Mn(II), Co(II), Ni(II), and Cu(II), have been prepared and characterized using the hemi-cage ligand previously reported by Beeston et al. [R.F. Beeston, W.S. Aldridge, J.A. Treadway, M.C. Fitzgerald, B.A. Degraff, S.E. Stitzel. Inorg. Chem., 37, 4368 (1998)]. The ligand…
In the design of nanostructures to perform single molecule surface enhanced Raman spectroscopy (SM-SERS), metallic structures with very narrow gaps (<1 nm) have been shown to contain regions with electric fields compatible with SM-SERS. However, this geometrical condition does not allow many biomolecules to reach the…
A simple protocol is reported for consistently obtaining large single crystals of hen egg-white lysozyme (HEWL) greater than 2 mm in the longest dimension. Comparative crystallization experiments with different sources of HEWL showed that the simple addition of glass capillaries, `crystal hangers', reduced excessive n…
Studiesoftheradiolysisofsupercriticalwater(tc = 374°C, Pc = 22.1 MPa) were motivated by the developmentofoneofthenext-generation(GenIV)nuclearreactors-thesupercriticalwater-cooled reactor(SCWR)(OkaandKataoka,1992;Squareretal.,2003).Thisnew-conceptreactorhasthe advantagesofhigherthermalconversionefciency,simplicityins…
We present a semigrand ensemble Monte Carlo and Brownian dynamics simulation study of structural and dynamical properties of polydisperse soft spheres interacting via purely repulsive power-law potentials with a varying degree of "softness." Comparisons focus on crystal and amorphous phases at their coexistence points…
Photoactivated cross-linking of peptides to proteins is a useful strategy for identifying enzyme-substrate and protein-protein interactions in cell lysates as demonstrated by studies on the human hypoxia inducible factor system.
Theenergyunitofkineticenergydividedbythemassnumberofions,thatis,MeV/u,isvery usefulandwidelyemployedinionbeamresearch,becausethesamevaluegivesthesamevelocity even for a different kind of ion. 13.1.2.1 Physics: Energy Deposition and Appearance of Track Theabove-mentionedapplicationsutilize,moreorless,distinctivefeature…
Traditional tissue regeneration approaches to activate cell behaviors on biomaterials rely on the use of extracellular-matrix-based or soluble growth-factor cues. In this article, a novel approach is highlighted to dynamically steer cellular phenomena such as cell motility based on nanoscale substratum features of bio…
Self-organization of matter is essential for natural pattern formation, chemical synthesis, as well as modern material science. Here we show that isovolumetric reactions of a single organometallic precursor allow symmetry breaking events from iron nuclei to the creation of different symmetric carbon structures: micros…
We fabricated silver bromide (AgBr) planar waveguides with a thickness of ≈20 μm and designed reflective grating couplers for coupling the radiation of a tunable CO2 laser into these waveguides. We found that the attenuation was 6–9 dB/cm. The waveguides were used as attenuated total reflection elements for the sensin…
The effect of current on Coulomb oscillation in a (Ni0.36Nb0.24Zr0.40)90H10 glassy alloy was carried out under currents of 1 nA, 10 nA, 100 nA, 1 μA, 10 μA, 100 μA, 1 mA, 10 mA, and 100 mA in the temperature range of 300–6 K. The amplitude of the Coulomb oscillation showed maximum values at around 1 μA. The discrete v…