Abstract: A voltage supply circuit for an ECU, of the type which uses a capacitor to hold charge for use in maintaining the supply during temporary supply interruptions, wherein a charge pump is provided for increasing the voltage available for charging the capacitor to a level above that of the supply to enable the stored energy of the capacitor to be boosted.

Abstract: The present invention relates to a method and apparatus for controlling static charges in a fluidized bed olefin polymerization reactor. Static charges which develop in the polymer products are measured and, if they fall outside a predetermined range, static charge control agents are introduced into the reactor. By controlling the static charges in the reactor, sheeting and drooling can be controlled.

Abstract: The present invention relates to a method and apparatus for controlling static charges in a fluidized bed olefin polymerization reactor. Static charges which develop in the polymer products are measured and, if they fall outside a predetermined range, static charge control agents are introduced into the reactor. By controlling the static charges in the reactor, sheeting and drooling can be controlled.

Abstract: The present invention relates to a method and apparatus for controlling static charges in a fluidized bed olefin polymerization reactor. Static charges which develop in the polymer products are measured and, if they fall outside a predetermined range, static charge control agents are introduced into the reactor. By controlling the static charges in the reactor, sheeting and drooling can be controlled.

Abstract: A portable in-line scooter parking stand that can hold a single scooter in an upright parked position. The stand is a rigid base made of aluminum or plastic, which includes a centrally located tapered slot, sized to fit and grip an inserted scooter wheel. Deep longitudinal grooves in the sides of the tapered slot, dig into the rubber sides of an inserted front scooter wheel and hold the scooter firmly upright. Four rubber feet attached to the bottom of the base prevent slippage or sliding. The stand is lightweight, inexpensive, and will hold all in-line scooters with standard 100 mm wheels.

Abstract: A voltage supply circuit for an ECU of the type in which a supply voltage is connected to a voltage regulator via an N-MOSFET control device, wherein, at least above a predetermined lower operating value, the control device is adapted to introduce resistance of progressively higher value between the voltage supply and the voltage regulator in dependence upon increasing values of supply voltage.

Abstract: A method for the purification or recovery of immunoglobulins from plasma or other immunoglobulin-containing material is disclosed which includes subjecting the plasma or other immunoglobulin-containing material to chromatographic fractionation on a macroporous anion-exchange resin to recover an immunoglobulin-containing fraction therefrom.

Abstract: A process for the removal of endotoxin from a biological product such as proteins for therapeutic use, blood plasma fractions, and albumin solutions that contains endotoxins, which comprises contacting said biological product with a cross-linked hydrophilic matrix comprising a copolymer of allyl dextran and N,N'-methylene bisacrylamide under conditions effective to bind endotoxins in said biological product to said matrix, wherein the total amount of endotoxin in said biological product does not exceed the absorptive capacity of said cross-linked hydrophilic matrix, and recovering purified biological product from which endotoxin has been removed as a result of said binding.

Abstract: In an exothermic reaction the reactants are passed through a fixed catalyst bed through which heat exchange tubes pass, reactants are flowed transversely to the tubes, heated by a first group of tubes and cooled by a second group of tubes, heat exchange fluid being passed from the first group of tubes to the second. This reduces the need to preheat incoming reactants.