Abstract: The continuous removal of solid products from a high-pressure system is achieved by operating a high-pressure pump in reverse to gradually reduce pressure at the exit line to atmospheric pressure. This process allows solid products to exit the system while at the same time maintaining high pressure in the reactor.

Abstract: A flow controller device includes a valve assembly connected with a tensiometer to provide automatic control of flow of water for irrigation, including variable control of the rate of flow according to the matric tension of the soil for water. The tensiometer is made of a porous cup and a connecting tube to measure this tension of the soil, which depends on the moisture and type of the soil. The valve assembly is formed of a piston moving in a cylinder, to move a rod connected to the piston. A cavity on the piston end of the cylinder connects with the tensiometer, and at the far end of the rod a flow valve is formed. As the soil dries, water moves out of the tensiometer's porous cup into the soil, reducing the pressure in the tensiometer and cylinder cavity, thereby shifting the piston to begin or increase the flow for irrigation. As soil moisture increases, water moves back into the tensiometer, increasing its pressure, thereby moving the piston to close the flow valve.

Abstract: Compositions, methods and apparatus provide for the control of Ixodid hard tick populations. The compositions comprise a cholesteryl ester and 2,6-dichlorophenol. In combination, these compounds attract and induce mating behavior in male ticks thus disrupting normal mating, with subsequent reduction in tick populations.