Publications by authors named "Jerry Ng"
Article Synopsis
- In a Canadian pulp mill, researchers estimated delays (lags) in operations using autoregressive exogenous (ARX) models, which help analyze how changes upstream affect downstream processes.
- The study found that lags exist between changes in the type of wood pulped and the resulting heating value and boiling point of the liquor, with estimated delays of 49 hours and 41 hours respectively, indicating poor mixing in the liquor tanks.
- Models like ARX and AR provide similar predictive accuracy, but process measurements from upstream units with long residence times may not significantly improve predictions.
The shortage of skilled workers who can use robots is a crucial issue hampering the growth of manufacturing industries. We present a new type of workforce training system, TeachBot, in which a robotic instructor delivers a series of interactive lectures using graphics and physical demonstration of its arm movements. Furthermore, the TeachBot allows learners to physically interact with the robot.
View Article and Find Full Text PDFStiff, porous scaffolds from magnetized alumina particles aligned by magnetic freeze casting.
Mater Sci Eng C Mater Biol Appl
August 2017
Bone consists of a hard mineral phase and a compliant biopolymer phase resulting in a composite material that is both lightweight and strong. Osteoporosis that degrades spongy bone preferentially over time leads to bone brittleness in the elderly. A porous ceramic material that can mimic spongy bone for a one-time implant provides a potential solution for the future needs of an aging population.
View Article and Find Full Text PDF