Double roller quenching of Li2B204(0.9)-LiFe5Og(0.1) has been performed with various melt temperatures and roller • speeds .The changes in physical properties or in the devitrification process of the amorphous samples are shown to be related to the LiFejOg content variations or to the Fe^ appearance but not to structural changes of the amorphous state due to preparation processes

Shrub encroachment has become a problem inmany rangeland systems across the United States due to a reduction in the disturbances, primarily fire, which historically maintained them. The shrub saw palmetto (Serenoa repens) has become abundant in many habitats of the southeastern Coastal Plain, including Florida. When fire regimes are altered or fires are suppressed, this species can proliferate ...

Modern ski-treadmills allow cross-country skiers, biathletes and ski-orienteers to test their physical performance in a laboratory environment using classical and freestyle techniques on roller skis. For elite athletes the differences in performance between test occasions are quite small, thus emphasising the importance of knowing the roller skis’ rolling resistance coefficient, μR, in order to...

For a rolling piston type of rotary compressor, oil supply system consisting of individual lubrication elements such as pumps, oil passages, and sliding surfaces has been modeled by employing equivalent electric circuit. Numerical solutions of the oil network model include total oil flow rate into the shaft hole, oil flow rates to various sliding surfaces, and oil leaks through roller end clear...

The toner jet method has been previously proposed to perform electrophotographic nonimpact printing easily. To clarify the fundamental properties of this method, the jet behavior of toner is studied through simulation on a personal computer. The mesh electrode is assumed to be inserted halfway between the development roller and the paper-back electrode. This is done to control the locus and the...

Many nervous systems contain rhythmically active subnetworks that interact despite oscillating at widely different frequencies. The stomatogastric nervous system of the crab Cancer borealis produces a rapid pyloric rhythm and a considerably slower gastric mill rhythm. We construct and analyze a conductance-based compartmental model to explore the activation of the gastric mill rhythm by the mod...

Springback is a common defect caused by elastic recovery in the plastic forming process, which can cause formed workpiece to deviate from target shape. The purpose of this paper grasp influence law process parameters on springback deviation so as optimize reduce springback. Taking Y-profile research object, such horizontal bending radius, vertical transition zone length, radius roller dies, and...

Lubricant is vital to improve energy efficiency and workpiece durability for the moving counterpart. High-temperature lubricants are important hot rolling process reduce force protect roller strips. The current paper concerns eco-friendly sodium metasilicate as a high-temperature lubricant. A mill employed evaluate lubrication effect of metasilicate. influence crucial factors concentration lubr...