The nudged elastic band (NEB) method is used to evaluate activation energies for dislocation intersection cross-slip in face-centered cubic (fcc) nickel and copper, to extend our prior work which used an approximate method. In this work we also extend the study by including Hirth locks (HL) in addition to Lomer–Cottrell locks and glide locks (GL). Using atomistic (molecular statics) simulations...

This paper examines the cross-linguistic phonetic interactions in the production of diphthongs by French-English bilingual children. The study aims to investigate (1) bye) and French tautosyllabic vowel-glide combinations (e.g. /aj/ as in baille onetic implementations, and if so, (2) whether bilingual children maintain two separate categories. Using SSANOVA to compare formant contours, the resu...

This study compares two diphthongs ([ea], [oa]) and two glide-vowel sequences ([ja], [wa]) in Romanian. The diphthongs and the sequences are auditorily very similar, but they differ in their phonological patterning. An integrated production and perception experiment is conducted in search of perceptual and acoustic evidence for the different phonological representations proposed for the diphtho...

A continuum theory for high temperature creep of polycrystalline solids is developed. It includes the relevant deformation mechanisms for diffusional and dislocation creep: elasticity with eigenstrains resulting from vacancy diffusion, dislocation climb and glide, and the lattice growth/loss at the boundaries enabled by diffusion. All the deformation mechanisms are described with respect to the...

The mystacial vibrissae of harbour seals (Phoca vitulina) constitute a highly sensitive hydrodynamic receptor system enabling the seals to detect and follow hydrodynamic trails. In the wild, hydrodynamic trails, as generated by swimming fish, consist of cyclic burst-and-glide phases, associated with various differences in the physical parameters of the trail. Here, we investigated the impact of...

Despite exhibiting considerable interspecific variation in body mass, flying lizards of the genus Draco are isometric in their area-mass scaling relationships and exhibit no significant compensatory variation in wing aspect ratio. Thus, larger species are expected to be relatively poor gliders, in lieu of behavioral or physiological compensation, when compared with smaller congeners. Here we te...

Aim and objective The aim of this study was to evaluate compare the cutting efficacy two different nickel titanium rotary instruments by a novel methodology: operative torque (torque time needed progress toward apex). Materials methods Ten fresh extracted upper first premolars with canals were instrumented KaVo (Biberach, Germany) 1:1 handpiece at 300 rpm maximum set 2 N. One canal ProGlider Ni...

Loss of thrust emergencies—e.g., induced by bird/drone strikes or fuel exhaustion—create the need for dynamic data-driven flight trajectory planning to advise pilots or control UAVs. While total loss of thrust (gliding) trajectories to nearby airports can be pre-computed for all initial points in a 3D flight plan, dynamic aspects such as partial power, wind, and airplane surface damage must be ...

These experiments were designed to test the hypothesis that glides in frequency are detected and discriminated by monitoring changes in excitation level on the low-frequency side of the excitation pattern. Thresholds were measured for detecting an increase in the extent of a frequency glide, for various standard extents (transition spans). The center frequency of each stimulus was roved, to pre...

Auditory and visual events often happen concurrently, and how they group together can have a strong effect on what is perceived. We investigated whether/how intra- or cross-modal temporal grouping influenced the perceptual decision of otherwise ambiguous visual apparent motion. To achieve this, we juxtaposed auditory gap transfer illusion with visual Ternus display. The Ternus display involves ...