Three different perspectives of electromagnetic radiation are presented here. The first employs the electric-field kink model, the second is based on a technique called FARS (Farfield Analysis of Radiation Sources), and the third uses time-domain solutions obtained from the TWTD (Thin-Wire Time Domain) model. The kink model demonstrates qualitatively that radiation is produced by “wriggling” a ...

The specialty of orthodontics has continued to evolve since its advent in the early 20th century. Changes in treatment philosophy, mechanics, and appliances have helped shape our understanding of orthodontic tooth movement. In the 1890‘s, Edward H. Angle published his classification of malocclusion based on the occlusal relationships of the first molars. This was a major step toward the develop...

The malposition of a self-expandable metal stent (SEMS) placed fully inside the bile duct may be disastrous, and adjusting the position of a malpositioned stent can be difficult or impossible. Fully-covered SEMSs were designed mainly to treat benign biliary strictures and to be removable [1]. The removal process can however be difficult if the stent is placed fully inside the bile duct. Graspin...

We developed a novel trans-femoral artery approach to the rat middle cerebral artery occlusion model (TF-MCAO) without sacrificing the external carotid artery (ECA) with/without the pterygopalatine artery, which is important for chewing food. To make the TF-MCAO we first dissect the left common carotid artery (CCA), ECA, and internal carotid artery (ICA). Transient occlusion clips are applied t...

The design of heat transfer performance regenerator is the key technology Stirling machine and great significance to ensure operation efficiency equipment. In this study temperature difference between two ends at room less than 50K. This paper attempts straight channel grid verify its accuracy. At first, a straight-channel was designed in by analyzing influence structural parameters on order re...

In this paper, the potential of superelastic shape memory alloy (SE-SMA) wire embedded architectures to increase quasi-static indentation properties a laminated glass/epoxy composite material was evaluated. Three types SE-SMA configurations namely straight independent, meshed and anchored wires were in laminates via vacuum bag resin infusion technique. Throughout investigation, changes behavior...

The critical current as a function of magnetic field of superconducting wires is commonly measured using about 60 mm short straight, or U-shaped samples, or about 1 m long samples on helical mandrels (so-called ITER barrels). The ITER barrel is designed for low to medium currents, but is commonly modified for high current wires. This often results in increased complexity, errors from reacted sa...

We introduce additively-weighted straight skeletons as a new generalization of straight skeletons. An additively-weighted straight skeleton is the result of a wavefront-propagation process where, unlike in previous variants of straight skeletons, wavefront edges do not necessarily start to move at the begin of the propagation process but at later points in time. We analyze the properties of add...

Abstract Wearable body weight support systems can assist individuals with mobility impairments in performing daily living activities greater ease and independence. However, existing have limitations terms of balancing their strength, compact size, interaction the ground, driving. In this paper, we present High-Strength Flexible Mechanism (HSFM) designed for support. The HSFM utilizes a coiling ...

In this article, a mathematical model has been developed for calculating the energy-power parameters of drawing process in monolithic dies on straight-line machines, and its adequacy validated experimental wire laboratory automated machine. The program allows us to calculate stress, force, tensile strength yield alloy after drawing, safety factor, power. differs that it evaluate uniformity defo...