The metallurgical properties of blast-furnace ore and ore-coal extrusion briquettes (BREX) based on hematite iron concentrate are studied. With respect to values hot strength brex occupy an intermediate position between sinter pellets. reduction capacity for is significantly reduced with simultaneous addition flux solid fuel, which may be associated a in porosity (due clogging pores the formati...

Scour is the erosion of bed and bank material by flowing water; scour poses a threat to bridge security by undermining piers and abutments over time. In fact, “the most common cause of bridge failures is floods with the scouring of bridge foundations being the most common cause of flood damage” (Richardson et al., 1993). While regular inspections and maintenance reduce the risk of a scourrelate...

Following established naval procedure, expert electronics technicians remotely support non-expert sailors via telephone, email, and chat referring to paper-based manuals as a common reference. Initially, experts have little contextual information about the problem and so must construct sufficient understanding through exchanges with the ship before offering help. To streamline and improve this ...

The evolution from static to dynamic electronic learning environments has stimulated the research on adaptive item sequencing. A prerequisite for adaptive item sequencing, in which the difficulty of the item is constantly matched to the knowledge level of the learner is to have items with a known difficulty level. The difficulty level can be estimated by means of the item response theory (IRT),...

While microgravity exposure is known to cause deterioration of skeletal muscle performance, little is known regarding its effect on tendon structure and function. Hence, the aims of this study were to investigate the effects of simulated microgravity on the mechanical properties of human tendon and to assess the effectiveness of resistive countermeasures in preventing any detrimental effects. E...

The introduction and development of wireless sensor network technology has resulted in rapid growth within the field of structural health monitoring (SHM), as the dramatic cable costs associated with instrumentation of large civil structures is potentially alleviated. Traditionally, condition assessment of bridge structures is accomplished through the use of either vibration measurements or str...