In this paper, an experimental investigation on a FZG test rig is presented. The proposed approach aims to at highlight the influence of micropitting power losses and temperatures in geared system. Micropitting has been gradually developed gear pair by applying increasing load levels. defect evaluated with specific characterization tests performed alongside growth. modification surface roughnes...

The propagation of small amplitude stationary profile nonlinear solitary waves in a pair plasma is investigated by employing the reductive perturbation technique via well-known Korteweg–de Vries (KdV) and modified KdV (mKdV) equations. This study tends to derive exact form solutions their characteristics. Two distinct pair-ion species opposite polarity same mass are considered addition massive ...

When considering flows in biological membranes, they are usually treated as flat, though more often than not, curved surfaces, even extremely curved, the case of endoplasmic reticulum. Here, we study topological effects curvature on membranes. Focusing a system many point vortical defects, able to cast viscous dynamics defects terms geometric Hamiltonian. In contrast planar situation, generate ...

Even though convinced of their ef®cacy, software development managers are looking for ways to reduce the cost of inspections. Recent work shows that inspections by two engineers have as good results as by using a larger team of ®ve. This indicates that pair programming might be effective as an inspection technique, as other research shows that a meeting is not necessarily better than not meetin...

We report a pair of twins with variable expressions of Fryns syndrome, both of whom died in the neonatal period. The syndrome is characterised by craniofacial dysmorphism, diaphragmatic hernia and distal limb hypoplasia. With this report, there are a total of 83 cases reported in the literature and this further serves to illustrate the clinical variability of this disorder.

Grain boundaries (GBs) are structural imperfections that typically degrade the performance of materials. Here we show that dislocations and GBs in two-dimensional (2D) metal dichalcogenides MX2 (M = Mo, W; X = S, Se) can actually improve the material by giving it a qualitatively new physical property: magnetism. The dislocations studied all display a substantial magnetic moment of ∼1 Bohr magne...

We address the question of which convex shapes, when packed as densely as possible under certain restrictions, fill the least space and leave the most empty space. In each different dimension and under each different set of restrictions, this question is expected to have a different answer or perhaps no answer at all. As the problem of identifying global minima in most cases appears to be beyon...

In silicon processing technology one of the most important current objectives is to achieve a controlled impurity doping in the crystal. Point defects and defect complexes present in the crystal influence in an important way the electrical activity and the diffusion properties of the dopants. In this thesis, defect complexes in silicon are studied by using quantum-mechanical electronic-structur...

background: lip carcinoma is a common cancer with a good prognosis and when patients refer early in the course of disease the results of treatment are acceptable. surgical procedures for reconstruction of lip defects are the use of remaining lip tissue, tissue from the opposite lip, adjacent cheek tissue, distant flaps and microvascular free flaps. the bitemporal (visor) flap is a regional flap...