First, a thermodynamic analysis was carried out upon a
sizing-desizing process. The energetic analysis shows that
rosin soap size should be bound to fibers through primary
chemical forces such as covalent bonds to effect sizing.
Secondary chemical forces are all thermodynamically unstable
to the attack of water molecules. It is...
There are several chemical treatments for paper to
Improve its strength properties. Durable press treatment is
usually used as a textile chemical finishing; however, there
is little information available on the application of durable
press treatment for paper. The durable press treatment was
applied to bleached softwood kraft handsheets using...
This thesis presents the development of dynamic control strategies for the
brushless doubly-fed machine (BDFM). A simple open-loop scalar controller is first
investigated and its response is found to be oscillatory. Using the speed feedback
signal, an improved closed loop scalar control algorithm is designed. Steady state
performance is controlled...