Polycrystalline samples of antimonides with the skutterudite crystal structure with La partially filling the voids have been prepared in an effort to quantify the impact of partial void filling on the lattice thermal conductivity of these compounds. It is observed that a relatively small concentration of La in the voids results in a relatively large decrease in the lattice thermal conductivity....

Using molecular simulations, we analyze the microscopic processes driving the Nuclear Magnetic Resonance (NMR) relaxation of quadrupolar cations in water. The fluctuations of the Electric Field Gradient (EFG) experienced by alkaline and magnesium cations, which determine the NMR relaxation time, are mainly due to the dynamics of water molecules in their solvation shell. The dynamics of the ion ...

Molecular dynamics simulations using a dissociative water potential were applied to study transport of excess protons in water and determine the applicability of this potential to describe such behavior. While originally developed for gas-phase molecules and bulk liquid water, the potential is transferrable to nanoconfinement and interface scenarios. Applied here, it shows proton behavior consi...

Framework substitution has not been widely reported among the type-II group-IV clathrates. We have performed a theoretical study of the Cs8Ga8Si128 and Rb8Ga8Si128 clathrates, using the local-density approximation LDA to density-functional theory. In Rb8Ga8Si128 and Cs8Ga8Si128, eight Si atoms are substituted by Ga at the 8a crystallographic sites of the framework. We predict that both Rb8Ga8Si...

In the Late Mesolithic graves of Yuzhniy Oleniy Ostrov, northwest Russia, large numbers Eurasian elk ( Alces alces ) incisors have been found. These teeth, for most part fashioned into portable pendants, seem to formed decorative sets garments or accessories deceased. This article examines both technologies associated with these artefacts and their uses, as well reflecting on sensorial experien...

This study determines the energy of a fatigue-loaded shaft circular cross-section, in stable equilibrium, deflecting during rotation even absence external loads. The is subjected to completely reversed stresses as well torsion and bending varying with introducing fatigue loading problems. research was conducted order establish equilibrium condition at which can operate without axial vibration p...

The paper presents a model for the torsional dynamics of an automotive driveline equipped with Dual Clutch Transmission (DCT), focusing on gear rattle phenomenon arising during transients engagement and disengagement clutches, synchronizing manoeuvres. This vibro-acoustic phenomenon, particularly annoying in transmissions, can be accentuated by presence many unloaded gears this type gearbox. sy...

Kim, Hyung-Soo. 2006. Underlying Bases for Reduplicated and Sound Symbolic Words in Korean: The so-called emphatic suffixation revisited. Korean Journal of Linguistics, 31-2, 207-232. This paper reanalyzes the so-called emphatic suffixation in Korean, with a focus on the base and suffixal forms used in previous analyses. Jun (1994) analyzes these cases under his rule of Metrical Weight Consiste...

The traditional trade-off in biomolecular simulation between accuracy and computational efficiency is predicated on the assumption that detailed forcefields are typically well-parameterized (i.e. obtaining a significant fraction of possible accuracy). We re-examine this trade-off in the more realistic regime in which parameterization is a greater source of bias than the level of detail in the f...