Abstract: Aspects of the subject technology relate to executing a boot sequence from a recovery image. A determination of a validity of one or more keyblocks is made. A determination of a first version identifier and a second version identifier is made. A comparison of the first version identifier and the second version identifier is performed. A boot sequence from a recovery image is executed based on the comparison.

Abstract: A charging device may include a computer plug, outlet plug, AC-to-DC converter, controller, and memory. The computer plug may provide power to a computing device and receive data from the computing device. The outlet plug may receive alternating current (AC) power from an electrical outlet. The AC-to-DC converter may convert the AC power into direct current (DC) power and provide the DC power to the computing device via the computer plug. The controller may control a voltage and/or current of the DC power based on data received from the computing device and instructions stored in a memory. The memory may include read-only instructions for the controller to modify a read-write portion of the memory based on data received from the computing device via the computer plug, and read-write instructions for the controller to set the voltage of the DC power based on the data received from the computing device.

Abstract: A method an composition for the bonding fibres to rubbers. The method comprising the steps of the fibres with a primer, treating the fibres with a resorcinol/formalin/latex preparation and curing the rubber in intimate contact with the treated fibres, wherein the primer comprises a ring-opened, maleinised polybotadiene and a phenolic derivative comprising electron-withdrawing groups. The composition can be the primer alone or in combination with the primer alone or in combination with the resorcinol/formalin/latex preparation.

Abstract: A stack of plastic articles and a process of forming the stack are disclosed. Preferably the stack is of heat-fusible plastic slide elements for use in a diagnostic analyzer, the elements being temporarily and non-destructively fused together so that the stack can be used free of a cartridge.In another embodiment, the stack can be of any plastic article temporarily fused to adjacent elements, one side edge of each element bearing a colorant and another bearing no colorant, so that a bar code for the stack is inherently formed simply by rotating each element to project outwardly the colored side edge or the side edge lacking colorant, prior to fusing the elements together.

Abstract: A stack of plastic articles and a process of forming the stack are disclosed. Preferably the stack is of heat-fusible plastic slide elements for use in a diagnostic analyzer, the elements being temporarily and non-destructively fused together so that the stack can be used free of a cartridge. In another embodiment, the stack can be of any plastic article temporarily fused to adjacent elements, one side edge of each element bearing a colorant and another bearing no colorant, so that a bar code for the stack is inherently formed simply by rotating each element to project outwardly the colored side edge or the side edge lacking colorant, prior to fusing the elements together.

Abstract: A novel slide test element and method of making are described. Both feature a lip coined in the sidewall of a recess shaped in a frame member to hold the reaction member bearing the detecting reagents. The lip then overhangs the reaction member, once assembled. Assembly occurs by bending the frame member with the lip facing outwardly, thus forcing the lip to part a distance sufficient to allow the reaction member to be inserted. An optional stacking and fusing procedure is also described to facilitate shipment of frame members prior to assembly.

Abstract: The present invention provides a tamper resistant paper towel handling unit, for mounting in a wall and comprising a wall box and a forward door which is used to open and close the wall box. The door is provided with a mouth or opening which provides access to the wall box when the door is closed. The wall box and door are adapted to co-operate with one another when the door is closed so as to support against inward collapsing of the door and to block off access to the periphery of the doormouth to resist outward prying of the door.

Abstract: A method and apparatus for detecting the presence of vapor-producing substances such as explosives contained within an item of baggage, in which the item of baggage is enclosed in a chamber and the air pressure in the chamber is varied cyclically in order to mix at least a portion of the air in the item of baggage with that in the chamber. A vapor detector is then used to detect the presence in the chamber air of vapors given off by an explosive substance or drug (e.g., cannabis) contained within the item of baggage.