Abstract: A method of concentrating and recovering an enzyme activity from enveloped viruses present in a biological sample, is described. The method comprises contacting the biological sample in a first buffer solution with a virus-binding matrix, such as an anion exchanger matrix, to attach virus particles present in the sample to the matrix, washing the matrix carrying the virus particles with a second buffer solution to remove components interfering with viral enzyme activity, lysing the immobilized virus particles in a third buffer solution and recovering the concentrated viral enzyme activity from the third buffer solution. Additionally, a commercial package containing written and/or data carrier instructions for performing laboratory steps for concentration and recovery of an enzyme activity from enveloped viruses present in a biological sample and at least one component necessary for the assay, is disclosed.

Abstract: A method and apparatus to monitor filling insertion in a weaving machine. A filling (3, 4) is severed during insertion by a filling-scissors (15), and the actual time at which the filling (3, 4) is severed is detected.

Abstract: A lock for locking electronic equipment such as computers and their peripheral devices, is composed of a lock assembly and a cable securely connected with the lock assembly, wherein the lock assembly includes a body with two movable retaining members provided therein, a lock core received in a back cover which is securely combined with the body, and two fastening rods respectively running through the lock assembly corresponding to two screw holes defined at opposite sides of a standard port of equipment. When the fastening rods are respectively engaged into the screw holes of the port, a user can easily lock the lock assembly with a key to remove the retaining members outwards to retain the fastening rods fixedly, whereby the lock is locked with the port.