On Roller Printing

Blanket Cylinder Impression Cylinder Printing Plate Cylinder Moistening Roller

Blanket Cylinder Impression Cylinder Printing Plate Cylinder Moistening Roller Ink Rollers The Lithographic

The Rolling Resistances of Roller Skis and Their Effects on Human Performance during Treadmill Roller Skiing

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...

Study on Roller-Walker ï¿1⁄2 Energy Efficiency of Roller-Walk ï¿1⁄2

Roller-Walker is a leg-wheel hybrid mobile robot using a passive wheel equipped on the tip of each leg. The passive wheel can be transformed into sole mode by rotating ankle roll joint when Roller-Walker walks on rough terrain. This paper discusses energy efficiency of locomotion in wheeled mode. We define a leg trajectory to produce forward straight propulsion and discuss the relationships bet...

On-Demand Printing

Based on the emerging technologies such as electronic imaging technology, data storage and retrieval technology, and network technologies, the publishing world will employ integrated, open, intelligent, on-demand, and just-in-time systems.