Abstract Mold slag entrainment during the continuous casting process presents a late stage source of non-metallic inclusions (NMI) with high likelihood ending up in final product. The reaction between entrained phase and surrounding liquid steel mold affects inclusion morphology properties. However, there is lack information on kinetics NMI-steel reaction. A novel approach, utilizing controlled...

A holistic approach to diagnose the occurrence of cracking on HSLA steel slabs and propose countermeasures prevent them is presented. The consisted plant monitoring, including direct temperature measurements in strand with pyrometers. Extensive characterization was performed via thermo-mechanical tests microscopy techniques which revealed combination Widmanstätten ferrite, acicular ferrite seco...

Robust and accurate control of secondary cooling is vital to the successful operation of any caster and the production of high quality products. This is especially important in thin slab casters, because high casting speed and a tight machine radius often requires carefully-prescribed temperature profiles to avoid various cracking problems. This can be achieved only by successful control of the...

Eduro is a modular mid-size mobile robotic platform designed as both a teaching tool for higher education and a research platform for academia and industry. In this paper we describe the technology used within the Eduro (indoor) and Eduro Maxi HD (outdoor) product lines. Both platforms are designed around a tricycle base with two differentially driven wheels and one caster wheel. The on-board e...

With the coming of aging societies, many elderly people have serious problems for their locomotion, because of the decline of the physical strength for walking. If they could not use their legs for walking, their physical strength would be weak gradually and they could not walk finally without assistance of other people or some assist system such as wheel chairs, etc. The walking using legs of ...

The issue of how to improve product quality and product yield in a brief period of time becomes more critical in many industries. Even though industrial processes are totally different in appearance, the problems to solve are highly similar: how to build a reliable model from a limited data, how to analyze the model and relate it to first principles, how to optimize operating condition, and how...

A particle-capture model based on local force balances has been developed, implemented into computational models of turbulent fluid flow and particle transport, and applied to simulate the entrapment of slag inclusions and bubbles during the continuous casting of steel slabs. Turbulent flow of molten steel is computed in the nozzle and mold using transient computational fluid flow models, both ...

this paper deals with continuous frames and continuous riesz bases. we introduce continuous riesz bases and give some equivalent conditions for a continuous frame to be a continuous riesz basis. it is certainly possible for a continuous frame to have only one dual. such a continuous frame is called a riesz-type frame [13]. we show that a continuous frame is riesz-type if and only if it is a con...