Abstract: A tidal barrage comprising: a plurality of spaced towers, a plurality of barriers for controlling water flow through the barrage between the towers, and one or more turbine devices, wherein the towers comprise at least first, second and third towers, wherein the first tower is located between the second and third towers and houses one or more of the turbines, wherein one or more first barriers are provided between the first and second towers, and one or more second barriers are provided between the first and third towers, wherein the barriers are configured so that when the one or more first barriers and the one or more second barriers are in a first configuration, a first flow path through the barrage is defined from a first side of the barrage to a second side of the barrage, and when the one or more first barriers and the one or more second barriers are in a second configuration, a second flow path through the barrage is defined from the second side of the barrage to the first side of the barrage, and wate

Abstract: An apparatus for generating electricity from water flow comprising: a convergent section connected at a downstream end thereof to an upstream end of a mixing chamber such that a venturi is formed; a diffuser section connected to a downstream end of the mixing chamber, the diffuser configured such that in use the static pressure at the exit of the diffuser is greater than the static pressure at the venturi; at least part of a tube located in the convergent section, such that an annulus is defined between the tube and the convergent section, to form a first flow passage, and the tube defining a second flow passage within the tube; and a turbine, which is connected with the tube and connectable to a generator, wherein the turbine is located within a turbine chamber that is connected at a downstream end thereof to an upstream end of the convergent section.

Abstract: A nested locknut wrench system includes a first wrench and a second wrench. Each wrench has a base portion having a flat portion including at least one magnet. Each wrench has a first extension portion extending perpendicularly from a first end of the base portion. Each wrench has a first arc-shaped finger extending perpendicularly from the first extension portion and having a first hook member extending radially inward from the first arc-shaped finger. Each wrench has a second extension portion extending perpendicularly from a second end of the base portion opposite the first end. Each wrench has a second arc-shaped finger extending perpendicularly from the second extension portion and having a second hook member extending radially inward from the second arc-shaped finger.

Abstract: A nested locknut wrench system includes a first wrench and a second wrench. Each wrench has a base portion having a flat portion including at least one magnet. Each wrench has a first extension portion extending perpendicularly from a first end of the base portion. Each wrench has a first arc-shaped finger extending perpendicularly from the first extension portion and having a first hook member extending radially inward from the first arc-shaped finger. Each wrench has a second extension portion extending perpendicularly from a second end of the base portion opposite the first end. Each wrench has a second arc-shaped finger extending perpendicularly from the second extension portion and having a second hook member extending radially inward from the second arc-shaped finger.

Abstract: A nested locknut wrench system includes a first wrench and a second wrench. Each wrench has a base portion having a flat portion including at least one magnet. Each wrench has a first extension portion extending perpendicularly from a first end of the base portion. Each wrench has a first arc-shaped finger extending perpendicularly from the first extension portion and having a first hook member extending radially inward from the first arc-shaped finger. Each wrench has a second extension portion extending perpendicularly from a second end of the base portion opposite the first end. Each wrench has a second arc-shaped finger extending perpendicularly from the second extension portion and having a second hook member extending radially inward from the second arc-shaped finger.

Abstract: A system uses a machine learning model trained using multitask learning for processing audio signals of different types. The system may be used in a device such as a headset, smart glasses, or a smart watch, and may be used to make predictions based on different types of audio signals, for example, for classifying acoustic events based on audio signal or for keyword spotting to detect wake words. The use of a single machine learning model for analyzing different types of audio signals improves storage efficiency as well as energy efficiency of devices compared to systems that use a different machine learning model for processing each type of audio signal.

Abstract: A weir comprising: a water impervious flexible membrane; a buoyancy member; and a tether, wherein, in use, the membrane comprises a lower edge portion and an upper edge portion, the lower edge portion is fixed with respect to a bed of a body of water, the membrane and the buoyancy member are attached to one another in the upper edge portion, and the tether comprises a first end portion, which is attached to the buoyancy member and/or to the membrane in the upper edge portion, and a second end portion that is attached to an anchorage.

Abstract: Apparatus for a machine-learning-based golf club fitting platform is disclosed. An apparatus includes a processor and a memory. The memory stores code executable by the processor to receive a first set of golf swing data for a user, the first set of golf swing data representative of one or more characteristics of a golf swing of the user; determine one or more optimal specifications of at least one hypothetical golf club that is a best fit for the user using a property prediction machine learning model based on the first set of golf swing data; and determine at least one pre-existing golf club, comprising predefined specifications, that is a best match for the user based on a comparison of the determined one or more optimal specifications of the at least one hypothetical golf club to the predefined specifications of a plurality of different pre-existing golf clubs.

Abstract: A weir comprising: a water impervious flexible membrane; a buoyancy member; and a tether, wherein, in use, the membrane comprises a lower edge portion and an upper edge portion, the lower edge portion is fixed with respect to a bed of a body of water, the membrane and the buoyancy member are attached to one another in the upper edge portion, and the tether comprises a first end portion, which is attached to the buoyancy member and/or to the membrane in the upper edge portion, and a second end portion that is attached to an anchorage.

Abstract: An automated meter testing system that includes a fluid inlet valve fluidly coupled both to a fluid source and an inlet on the at least one meter. The fluid source provides fluid pressure to move fluid through the at least one meter. A flow control valve is fluidly coupled to the at least one meter opposite the fluid inlet valve. A valve controller that operates the flow control valve. A controller is electrically connected to the valve controller. The controller sends at least one signal to the valve controller to incrementally open or restrict the flow control valve to increase or decrease a flow rate of the fluid through the at least one meter.

Abstract: A power generation and/or storage apparatus comprising a buoyant flywheel, wherein the flywheel is arranged, in use, in contact with a body of liquid for rotation about a substantially vertical axis, an underside of the flywheel comprising a circumferentially extending opening, wherein, in use, gas is trapped within the opening by the surface of the liquid to define an gas cushion for supporting the flywheel.

Abstract: A tidal barrage comprising: a plurality of spaced towers, a plurality of barriers for controlling water flow through the barrage between the towers, and one or more turbine devices, wherein the towers comprise at least first, second and third towers, wherein the first tower is located between the second and third towers and houses one or more of the turbines, wherein one or more first barriers are provided between the first and second towers, and one or more second barriers are provided between the first and third towers, wherein the barriers are configured so that when the one or more first barriers and the one or more second barriers are in a first configuration, a first flow path through the barrage is defined from a first side of the barrage to a second side of the barrage, and when the one or more first barriers and the one or more second barriers are in a second configuration, a second flow path through the barrage is defined from the second side of the barrage to the first side of the barrage, and wate

Abstract: An apparatus for testing rings cut from pipes, comprising: a plurality of test chamber sections which, when placed together, define a test chamber for receiving the ring to be tested, the test chamber sections comprising at least a first test chamber section defining a first inner face of the test chamber and a second test chamber section defining an opposed second inner face of the test chamber, the first and second inner faces defining annuli arranged to contain the ring to isolate the inside of the ring from the outside; means for clamping the test chamber sections together to form the chamber; a fluid inlet port in one of the chamber sections to allow a pressurised fluid to be admitted to the chamber outside the ring when received in the chamber; and one or more sensors for measuring strain and deformation of the ring and fluid pressure, wherein the annuli are aligned with one another, are wider than the wall thickness of the ring to be tested, and are substantially entirely flat.

Abstract: A spacecraft, for example a satellite, or a part thereof having a coating comprising a 2D material on an outer surface thereof is described. The 2D material comprises one or more elements, excluding C, N and S, in an amount of at least 50 at. %; and respective oxides of the one or more elements of the 2D material have a vapour pressure of at most 10 Pa at a temperature of 323 K.

Abstract: An automated meter testing system that includes a fluid inlet valve fluidly coupled both to a fluid source and an inlet on the at least one meter. The fluid source provides fluid pressure to move fluid through the at least one meter. A flow control valve is fluidly coupled to the at least one meter opposite the fluid inlet valve. A valve controller that operates the flow control valve. A controller is electrically connected to the valve controller. The controller sends at least one signal to the valve controller to incrementally open or restrict the flow control valve to increase or decrease a flow rate of the fluid through the at least one meter.

Abstract: An apparatus for testing a ring cut from a pipe, comprising: a body, an annular pressure member, which is expandable and is connected to a source of pressurised fluid, and one or more sensors for measuring strain and deformation of the ring and fluid pressure, wherein the body defines a substantially circular opening for receiving the annular pressure member and the ring, and the annular pressure member is provided, in use, between an inner surface of the substantially circular opening and an outer circular surface of the ring for applying pressure to the outer circular surface of the ring.

Abstract: A method of inspecting a pipe joint for use in a subsea pipeline and a method of manufacturing a pipe joint for use in a subsea pipeline employing said inspection method are disclosed, the inspection method comprising the steps of: receiving a pipe joint; measuring the ovality of the pipe joint to obtain ovality data; determining that the ovality data does not exceed a predetermined maximum pipe joint ovality value; and carrying out external pressure collapse tests on a ring cut from one end of the received pipe joint, resulting in data representative of the hydrostatic collapse pressure of said pipe joint for use in confirming that the pipe joint is suitable for its intended use.

Abstract: A water meter test bench assembly that includes a fluid source, a discharge pipe, and check valve assembly, is provided. The fluid source also provides fluid pressure to move fluid through the at least one meter. The discharge pipe is fluidly coupled to a valve and configured to receive the fluid that passes through the at least one meter. The check valve assembly is attached to the discharge pipe and is in fluid communication with the opening of the discharge pipe. The check valve assembly is open when the fluid pressure from the fluid source moves the fluid through the at least one meter, the valve, and acts on the check valve assembly. When the fluid pressure is reduced sufficient to close the check valve assembly, the fluid is stopped from passing through the check valve assembly.

Abstract: A method of determining a minimum wall thickness for a pipe joint for use in a subsea pipeline comprises the steps of: i) determining an internal diameter of the pipe joint; ii) determining a minimum allowable hydrostatic pressure at the depth at which the pipe joint is to be used; iii) determining a target wall thickness for the pipe joint, the target wall thickness corresponding to the internal diameter and the minimum allowable hydrostatic pressure; iv) manufacturing a plurality of preliminary pipe joints having the internal diameter and the target wall thickness; v) carrying out external pressure collapse tests resulting in data representative of the hydrostatic collapse pressures at which the plurality of preliminary pipe joints collapse; vi) determining a probability distribution corresponding to the data based on a statistical tail model derived from Extreme Value Theory; vii) determining from the probability distribution a hydrostatic collapse pressure occurring with a probability of 10?5 or lower; an

Abstract: The present invention provides an article inverting and displacing apparatus and a machine for making sandwiches comprising the apparatus, wherein the apparatus comprises an engagement member (12) adapted to engage a lateral edge portion of a sandwich element; a drive unit (14) configured to drive the engagement member (12) to lift and turn the sandwich element engaged thereby about is opposite lateral edge to invert it; and a control unit configured to control the drive unit (14); wherein the control unit is configured to control the drive unit (14) to drive the engagement member (12) so that the opposite lateral edge of the sandwich element is caused to be raised to approximately at or above the level or height of the engaged lateral edge portion during the inverting step, and, optionally subsequently the sandwich element is caused to lie in a generally horizontal plane. The present invention also provides a process of automatically inverting and displacing articles.