Abstract: A method of controlling a process having a plurality of independently controlled, manipulated variables and at least one controlled variable which is dependent on the manipulated variables. In the first step of the method data is gathered about the process by introducing test disturbances in the manipulated variables and measuring the effect of the disturbances on the controlled variable. The value of the controlled variable is measured at a first time. Using the data gathered from the test disturbances and the measured value of the controlled variable, a first set of changes in at least one of the manipulated variables is calculated such that the controlled variable is driven towards its set point without exceeding a predetermined limit. The manipulated variables are adjusted in accordance with at least one change from the first set of calculated changes. The values of the manipulated variables and the controlled variable are then measured at a second time.

Abstract: This invention relates to a structural laminate having a plastic surface finish coat laminated to a structural base which has exceptional bond strength between the structural base and the plastic layer with which it interfaces. The structural base comprises a glass reinforced gypsum layer. The plastic laminate portion comprises a plastic surface finish coat, preferably a polyester gel coat or an acrylic resin, bonded to a reinforcing layer of curable polyester or epoxy resin reinforced with glass fibers. The reinforcing layer is adhered to a bonding layer which comprises glass fibers protruding from the reinforcing layer and coated with a limited amount of organic resin such as polyester or epoxy resin. The glass reinforced gypsum layer is applied to the protruding fibers of the bonding layer to form an interface having a bond strength of at least about 150 psi as determined by ASTM C297-68.

Abstract: A portable desk top tray for organizing and arranging desk implements such as a tape dispenser, stapler, calendar and the like, includes a top surface supported above a desk top by at least a front wall. The top surface has several depressions. Each depression is adapted to receive a respective desk implement and is of a size and shape to laterally confine the respective implement against substantial horizontal movement. Several elongated sockets open through the front wall and extend rearwardly therefrom at positions laterally spaced from the depressions. The top surface may also be provided with an upright wall structure shaped to conform to another respective one of the desk implements for receiving the same. One of the sockets may be positioned below and laterally between the upright wall structure.