Abstract: An abdominal exercise bench comprising an elongate upper frame and an auxiliary elongate rectangular base combined together, the upper frame having two semi-round openings for two feet of a user to extend through to hook on the frame, the base having an upper sloped-down surface and a thinner lower end to pass through a gap between the floor and a bottom end of a door, which secures immovable this exercise frame for the user ot take abdominal exercise sitting on the floor with his feet hooked on the upper frame.

Abstract: A novel asphalt-aggregate composition in which the aggregate particles and the asphalt are separated by a very thin film of a water insoluble organic polymer. The continuous thin film is formed by treating the aggregate with dilute aqueous emulsion of the polymer. A major amount of hot treated aggregate is thoroughly mixed with a minor amount of hot, free-flowing asphalt to produce a composition useful in road construction and repair, roof maintenance, landfill lining and like application where the integrity of the asphalt must be maintained.

Abstract: A cylinder containing a vacuum lid opening at one end and a tee connector is used as a containment vessel to measure the rate of volatilization of dissolved volatiles from solids. One end of the tee is connected to a vacuum pump and the other end is attached to a vacuum pressure gauge. A thermal sensor is located at the bottom end of the cylinder for monitoring the temperature of the solid material. In operation, a sample of contaminated solid is placed in the cylinder, the vacuum pump is activated and the vacuum pressure and solid temperature are monitored over a period of time. The mass transport coefficient for volatilization of dissolved gases from contaminated solids can be determined from Henry's law and a mass transport equation.