The present note describes a machine development (MD) aimed to confirm experimentally the need for protection of the extraction wire septum ZS in SPS long straight section LSS6 [1] during LHC operation. Single wires identical to the ones mounted on the extraction septum were fixed on a fast wire scanner and put into the beam path. The beam heated the wire until it broke after a measured number ...

'Betty' the New Caledonian crow astonished the world when she 'spontaneously' bent straight pieces of garden wire into hooked foraging tools. Recent field experiments have revealed that tool bending is part of the species' natural behavioural repertoire, providing important context for interpreting Betty's iconic wire-bending feat. More generally, this discovery provides a compelling illustrati...

The purpose of this study was to compare the severity of apical root resorption occurring in patients treated with a standard edgewise and a straight-wire edgewise technique, and to assess the influence of known risk factors on root resorption incident to orthodontic treatment. The sample consisted of 80 patients with Angle Class II division 1 malocclusions, treated with extraction of at least ...

BACKGROUND The aim of this study was to compare the degree of external apical root resorption (EARR) in patients treated with self-ligating Damon appliances and with conventional preadjusted appliances. METHODS The sample comprised 52 patients, divided into two groups. Group 1 consisted of 25 patients treated with self-ligating Damon appliances, with an initial age of 16.04 years, final age o...

The strain induced critical current degradation of overpressure processed straight Bi-2212/Ag wires has been studied at 77 K in self-field. For the first time superconducting properties, lattice distortions, composite wire stress and strain have been measured simultaneously in a high energy synchrotron beamline. A permanent Ic degradation of 5% occurs when the wire strain exceeds 0.60%. At a wi...

In many situations, the dual-purpose heater/thermometer wires used in three-omega method—one of most precise and sensitive techniques for measuring thermal conductivity thin films interfaces—must include bends curves to avoid obstructions on surface a sample. Although analysis assumes that heating wire is infinitely long straight, recent experimental work has demonstrated that, some cases, curv...

This paper analyses the collimation behavior of a wire medium devoted to magnetic resonance imaging. In a first part, the point spread function of a doubly infinite wire medium is analyzed for the magnetic field with the help of the Array Scanning Method. In a second part, we present two methods to evaluate the field transmission by the wire medium, based on the measure of the magnetic field co...

The ability to predict the geometry of weld bead plays a key role in accurate path planning and determination welding parameters wire arc additive manufacturing. However, little attention has been paid its prediction when deposition is not straight. Thus, this work focuses on 3D reconstruction based path. One main findings paper that shape changes from symmetrical cross-section straight portion...

Lent’ and also 301s and Macucci* have carried out numerical calculations for transmission and bound states of a quantum wire with a circular bend. We shall show here that their results can be understood in detail, and very simply,. in the approximation introduced by Jensen and Koppe3 that the width of the wire is small compared to its radius of curvature. As we shall see, the results are excell...