Abstract: The disclosure provides compositions and methods for assaying the function or properties of a plurality of polypeptides. In particular, the disclosure provides methods for high-throughput characterization of large population of polypeptides. Each polypeptide is displayed on a solid surface, such as a bead, where the solid surface also displays a nucleic acid that encodes the polypeptide. For example, each polypeptide may be covalently linked to a nucleic acid that encodes the polypeptide. In preferred embodiments, the polypeptide and nucleic acid are assayed in parallel, and with the same instrument.

Abstract: In a wireless communication between a mobile controller and a controllable device, the device periodically broadcasts, at a relatively low power level, a first advertisement packet for connecting the controllable device to a mobile controller. Once a connection has been established between the device and the controller, the controller and the device exchange their respective identifiers (IDs). In the event that the connection becomes broken, the device starts to additionally periodically broadcast, at a relatively high power level, a second advertisement packet containing the device ID for reconnecting the device to the controller. Upon receipt of the second packet, the controller requests receipt of a message containing the controller ID and, upon receipt of that message, resumes the connection with the device. The device then stops the broadcast of the second advertisement packet.

Abstract: Measurement and/or control units located within a borehole are inductively coupled to a flat three phase power cable segment without piercing the armor around the cable. For drawing power from the cable, C-shaped, L-shaped or straight core(s) with winding(s) around at least a portion thereof are positioned proximate to one or both end conductors, outside the armor, with significantly overlapping the center conductor. For impressing or detecting signals on the cable, straight core(s) with winding(s) around at least a portion thereof are disposed on one or both sides of the cable, outside the armor, across all three conductors with the core oriented transverse to the cable conductors.

Abstract: The present invention is a method of biometric authentication. The first step is taking a series of measurements of the biometric. The second step is averaging those measurements to create a valid iris model. The third step is generating a random number. The fourth step is using an error-correcting code to create a codeword using the random number. The fifth step is generating a list of random locations corresponding to valid bits in the biometric reading. The sixth step is generating a list of numbers consisting of the combination of specified biometric bits and the codeword. The seventh step is generating the secret by performing a hash on the random number. The eighth step is storing the secret and the list to a certificate. The ninth step of the method is authenticating the subject.

Abstract: Measurement and/or control units located within a borehole are inductively coupled to a flat three phase power cable segment without piercing the armor around the cable. For drawing power from the cable, C-shaped, L-shaped or straight core(s) with winding(s) around at least a portion thereof are positioned proximate to one or both end conductors, outside the armor, with significantly overlapping the center conductor. For impressing or detecting signals on the cable, straight core(s) with winding(s) around at least a portion thereof are disposed on one or both sides of the cable, outside the armor, across all three conductors with the core oriented transverse to the cable conductors.

Abstract: Data or control signals are communicated over a three phase power cable supplying power from a surface location to a motor/pump assembly located within a wellbore utilizing modulated radio frequency signals. The radio frequency signals may be impressed on the power cable through physical taps to the power cable conductors or by reactive coupling to the power cable. The transmission frequency is selected from a range of frequencies which propagate through the motor windings and up the power cable with sufficient amplitude to be received and processed. The modulated RF signal may be transmitted concurrently with the three phase power on the power cable, and simultaneous bidirectional communications between the surface and downhole locations may be supported utilizing, for example, discrete frequencies for transmission in different directions.

Abstract: A method for assembling fully functional sub-stacks of electrochemical cells, that includes securing a plurality of electrochemical cell components into a functioning sub-stack. The cell components may include, without limitation, bipolar plates, bipolar grids, monopolar plates, monopolar grids, membrane and electrode assemblies (MEA), gas diffusion elements, flow fields, cooling plates, heating plates and combinations thereof. Each of these components are assembled in a generally planar assembly, or a stack. The method further includes banding perimeter tabs of one component in the sub-stack to perimeter tabs of another component in the sub-stack. Banding the perimeter tabs does not compress the components together with such a force as to form fluid tight seals, but rather provides compression to hold each component in place and aligned during storage and normal handling of the sub-stack. The perimeter tabs extend from the perimeter of the component and in the same plane as the component.

Abstract: A method and apparatus for assembling electrochemical cell components into cells, sub-stacks of cells and stacks of cells. The components provide self-alignment of two or more components without introducing additional parts or complexity to the assembly process. Rather, at least one component has an integral projection and at least one other component has an integral cavity for receiving the projection. The dimensions of the projection and cavity must not interfer with the face-to-face contact between the generally planar components, and the projection must not be taller than the cavity is deep. In order to provide alignment across the entire face of the components, it is preferred to have at least one component with a plurality of projections and at least one component having a plurality of cavities. Preferably, the projections and cavities will be positioned at the generally opposite sides, end comers, and the like.

Abstract: A method for assembling electrochemical cells for monopolar arrays or bipolar stacks using an adhesive to bond and seal the interfaces of the stack components. Adhesives may bond and seal the components of an electrochemical cell stack, thereby providing a much lighter assembly than those stacks using traditional assembly methods and techniques. Accordingly, no gaskets, o-rings or similar devices are required to seal between the components. The adhesive may be an adhesive type selected from types consisting of reactively cured, thermoplastic, and cured by solvent loss. The adhesive may be an epoxy having a harness (Shore A) of between about 90 and about 70, preferably about 80. The perimeters of the membrane that is part of a membrane and electrode assembly may be dimensionally stabilized by leaving the perimeter in the PFSP form, or by converting the protonated perimeter to a tetra-alkyl ammonium form or to a polyvalent cationic form.

Abstract: An electrochemical cell component having a plate with opposing faces, seal grooves formed in each of the faces, and a plurality of holes extending through the plate between the first and second grooves with an integral sealing member formed in the grooves and holes. The seal grooves extend continuously around the perimeter of the faces and the grooves may follow any type of contiguous pattern. The component may form a frame surrounding a flow field. Bipolar plates and fluid cooled bipolar plates may comprise this electrochemical cell component. Alternatively, a seal groove may be formed in only the first face and a ridge formed in the second face of the component. The ridge may be used to form a fluid tight seal when pressed into an opposing surface of the membrane in a membrane and electrode assembly. A sealing material is contained within the seal groove.