Abstract: Designs of redox flow battery arrays and methods for balancing state of charge within the arrays are disclosed. Flow battery unit strings in the arrays which comprise strings of flow battery units (in which units share a common electrolyte pair) are balanced by measuring the states of charge of the common electrolyte pairs and appropriately regulating flow in one or more of the associated anolyte and catholyte circuits so as to balance the state-of charge in the flow battery unit strings. The apparatus required, i.e. state-of-charge measuring device, flow regulator, and controller, represents a substantial simplification to state of the art approaches.

Abstract: A tool interchange for a submersible remote operated vehicle (ROV) arm includes a first interchange body that affixes to an ROV arm. A second interchange body is carried by the first interchange body to rotate on a rotation axis. The second interchange body includes a tool mount actuable between gripping an ROV tool to the second interchange body and releasing the ROV tool from the second interchange body. An inductive power coupling part is provided in the tool mount. The inductive power coupling part is presented outwardly in the tool mount opposite the first interchange body, resides on the rotation axis and is fixed with respect to the first interchange body while the second interchange body rotates. The inductive power coupling part is adapted to inductively communicate power with a corresponding inductor power coupling part of the ROV tool when the ROV tool is docked in the tool mount.

Abstract: A computer-implemented method of determining a control sequence for performing a quantum operation on a quantum information processor comprising a plurality of qubits is described herein. The quantum operation is characterised by a fermionic quantum operator for acting on local fermionic modes. The method comprises translating, using a fermion-to -qubit encoding, the fermionic quantum operator to a qubit operator for operating on the plurality of qubits, and determining from the qubit operator a control sequence for performing the quantum operation on the quantum information processor. Apparatuses and computer-readable media are also described.

Abstract: The magazine well adapter of the present invention, and associated kits and devices, improves the firing rate and accuracy of AK-type firearms by converting the traditional magazine well into a push-button drop ejection device.

Abstract: The magazine well adapter of the present invention, and associated kits and devices, improves the firing rate and accuracy of AK-type firearms by converting the traditional magazine well into a push-button drop ejection device.