The invention herein provides a method for recovering a polypeptide comprising exposing a composition comprising a polypeptide to a reagent which binds to, or modifies, the polypeptide, wherein the reagent is immobilized on a solid phase; and then passing the composition through a filter bearing a charge which is opposite to the charge of the reagent in the composition, so as to remove leached reagent from the composition.

A method and system for automatically detecting invalid or superseded firmware and replacing at least a portion of the firmware stored in rewritable, nonvolatile memory of an electronic device. Boot code of the device firmware checks whether any portion of the device firmware is corrupt or superseded by a later version. The boot code stores a status indication of the firmware, and communicates the status to a host device over a bus or network. If the firmware is corrupt or superseded, the host a...

Low concentrations, 1 10% of potassium salt, especially potassium formate, are used in a drilling fluid in oil production. Preferably they are used with guar derivatives, most preferably carboxymethyl hydroxypropyl guar. The concentration of potassium formate is maintained at the desired level by adjusting the potassium formate to maintain a desired Zeta potential in the circulating drilling fluid. The potassium formate/guar derivative composition may be used in the substantial absence of hydrop...

The present invention provides a method and apparatus for error recovery in a system. The apparatus comprises a directory cache adapted to store at least one entry and a control unit. The control unit is adapted to determine if at least one uncorrectable error exists in the directory cache and to place the directory cache offline in response to determining that the error is uncorrectable. The method comprises detecting an error in data stored in a storage device in the system, and determining if...

A data and clock recovery system adapted for use with RZ data. In one embodiment a phase detector provides phase information for low to high data signal transitions only. In another embodiment a clock recovered from rising transitions is mixed with a clock recovered from falling transitions to form a recovered clock signal.

Methods for devolatilizing polymer solutions have been invented which include, in certain aspects, dissolving a viscous polymer in a solvent forming a polymer-solvent solution, introducing the polymer-solvent solution into a thermal dryer, heating or cooling the polymer-solvent solution in the thermal dryer forming product polymer with solvent removed and separated solvent (which may include other residuals), the separated solvent with other residuals if present vaporizing in the thermal dryer f...

A process for the recovery of natamycin from a fermentation broth containing biomass and natamycin, which comprises: (a) disintegrating the biomass; and (b) separating the natamycin from the thus treated fermentation broth.

A recovery vehicle for rescuing stranded vehicles from confined or restricted areas includes a wheeled chassis (2, 6) on which is mounted a vehicle support body (40) movable by an hydraulic mechanism (44) between an inoperative position superimposed on the chassis (2, 6) and an operative position extending rearwardly of the chassis (2, 6). The vehicle support body (40) is rotatable about a vertical axis relative to the chassis (2, 6) by a primary hydraulic ram located substantially within the co...

A boiler recovers a soda component from pulp spent liquor and is able to prevent carry-over of unburnt char and deformation of a char bed configuration and to attain a stable combustion with low NO.sub.x generation. By regulating the combustion air supply, and feeding inert gas along a furnace side wall around the char bed, there are formed a combustion zone of reduction atmospheric field where air ratio in the surroundings of the char bed is 0.8 or less, a combustion zone of reduction atmospher...

In a recovery boiler for burning spent liquor of a pulp mill, a combustion chamber has heat transfer walls formed of tubes, at least one vertical heat transfer surface formed of tubes, and superheaters in an upper part of the combustion chamber for recovering heat generated by combustion and for cooling flue gases. The at least one vertical heat transfer surface divides the combustion chamber in a transverse direction into two combustion spaces.