NiTi alloy wires are widely used in many applications for examples, orthodontic arch wires, mini screw implant, sensors, etc. Usually, wire drawing process is chosen to produce arch wires because of its high productivity as well as superior surface quality of the drawn wire surface. In the case of NITI arch wire, the cold work occurred during wire drawing operation also plays important role to ...

In this paper, we study the issue of free-riding in collaborative learning. Free-riding occurs when a part of the students lean on the efforts of the rest of their team and do not contribute much to the team work. It impacts negatively on performances of the whole team [1]. We present an experiment of collaborative diagram drawing (through a synchronous collaborative drawing tool, called Shared...

Problem 1. On the picture below (not to scale, adapted from an actual Chinese drawing from 1000 B.C.) the area of the large square ABCD is 25, and the area of the small square A B C D is 1. Find the length of AA. A A B B C C D D

The evolution of microstructure and texture during wire drawing of pearlitic steel was studied using scanning electron microscopy and X-ray diffraction. Wire drawing induces elongation of ferrite grains with the development of <110> fibre texture. The cementite lamellae also have a tendency to reorient themselves along the wire axis with increasing strain. Viscoplastic self-consistent simulatio...

During metallic wire drawing processes, the presence of knots and the failure to detect them can lead to long production interruptions, significant economic losses and a lower quality of final product. Consequently, there is a pressing need to develop methods for real-time detection and prevention of this fault. In this paper a sensor to prevent the formation of knots during the metallic wire d...