Abstract: A system and method for a frac pump. The system includes a turbine. The turbine can be 100% powered by natural gas or other fuels. The turbine, which can have an OEM controller, drives a frac pump. The frac pump is used for fracturing. The system has a controller which controls the system, including the OEM controller. The system has an air filtration system to treat the air entering the turbine. The air filtration system can include a system with no moving parts and no filters. The system fits within a trailer so it can be transported to remote locations. The system is self-sufficient.

Abstract: A system and method for a frac pump. The system includes a turbine. The turbine can be 100% powered by natural gas or other fuels. The turbine, which can have an OEM controller, drives a frac pump. The frac pump is used for fracturing. The system has a controller which controls the system, including the OEM controller. The system has an air filtration system to treat the air entering the turbine. The air filtration system can include a system with no moving parts and no filters. The system fits within a trailer so it can be transported to remote locations. The system is self-sufficient.

Abstract: An underwater ROV or AUV with 8 vectored thrusters that provides a high degree of dynamic stabilisation, 6-degrees of freedom, and a system to control an underwater ROV or AUV with single or multiple thruster failures. In addition, the ROV/AUV has a system to minimise silt disturbance when operating close to fine silt or sensitive environments.

Abstract: A buoyancy adjusting device for an underwater device is described the device comprising: a tube having first and second ends; a resilient mechanism located at the first end of the tube and extending towards the second end of the tube; an opening near the second end of the tube; a catch at the second end of the tube; 5 and at least one block insertable into from the first end of the tube to adjust the buoyancy.

Abstract: A buoyancy adjusting device for an underwater device is described the device comprising: a tube having first and second ends; a resilient mechanism located at the first end of the tube and extending towards the second end of the tube; an opening near the second end of the tube; a catch at the second end of the tube; 5 and at least one block insertable into from the first end of the tube to adjust the buoyancy.

Abstract: A fibre optic connector is described the fibre optic connector comprising a threaded body; a tether strand spreader; a compression seal, when assembled the compression seal located between the tethered strand spreader and the threaded body; a threaded sealing block, connectable to the threaded body, when assembled forcing the tether strand spreader into the threaded body; a fibre terminator; and an elongated sheath connectable to the threaded body and at least partially covering the fibre terminator.

Abstract: A method for monitoring health maintenance by collecting an initial blood sample from an individual and dividing the collected blood sample into at least two parts. The first of the two parts is immediately analyzed for multiple blood components levels, and the second part is frozen immediately after the collection to be used at a later time as a comparative standard. After a period of time, a second blood sample is collected from the same individual and analyzed for the same multiple blood components levels in a parallel test with the frozen part. The results obtained from the second blood sample are then compared to the results from the frozen comparative standard to detect real changes in the multiple blood components levels over time.

Abstract: An underwater ROV or AUV with 8 vectored thrusters that provides a high degree of dynamic stabilisation, 6-degrees of freedom, and a system to control an underwater ROV or AUV with single or multiple thruster failures. In addition, the ROV/AUV has a system to minimise silt disturbance when operating close to fine silt or sensitive environments.

Abstract: A chamber (422) for a cryostat (420) includes: first and second annular sections (4221, 4222) separated and spaced apart from each other along a first direction, and a third annular section (4223) extending in the first direction between the first and second annular sections and connecting the first and second annular sections to each other. The first and second annular sections define corresponding first and second internal volumes, the third annular section defines a third internal volume, and the third internal volume is substantially less than the first internal volume and substantially less than the second internal volume.

Abstract: A fibre optic connector is described the fibre optic connector comprising a threaded body; a tether strand spreader; a compression seal, when assembled the compression seal located between the tethered strand spreader and the threaded body; a threaded sealing block, connectable to the threaded body, when assembled forcing the tether strand spreader into the threaded body; a fibre terminator; and an elongated sheath connectable to the threaded body and at least partially covering the fibre terminator.

Abstract: An apparatus for releasing a gas into a liquid housed in a container has a gas assembly including a source of compressed gas; a float in fluid communication with the source of compressed gas; and a gas release member in fluid communication with the source of compressed gas and the float. The gas release member is adapted to release gas into the liquid. The float has variable buoyancy that causes the float and the gas release member to ascend and descend depending on the buoyancy of the float, the buoyancy of the float being reduced as the gas is released into the liquid.

Abstract: A method for monitoring health maintenance by collecting an initial blood sample from an individual and dividing the collected blood sample into at least two parts. The first of the two parts is immediately analyzed for multiple blood components levels, and the second part is frozen immediately after the collection to be used at a later time as a comparative standard. After a period of time, a second blood sample is collected from the same individual and analyzed for the same multiple blood components levels in a parallel test with the frozen part. The results obtained from the second blood sample are then compared to the results from the frozen comparative standard to detect real changes in the multiple blood components levels over time.

Abstract: A system for charging electronic devices, the system comprising: one or more wireless power transmitters 202, each transmitter having one or more power transmitting elements 212; one or more receiver electronic devices 204 including wireless power receivers, each receiver having one or more power receiving elements 216, the transmitters 202 and receivers 204 being configured to transfer electrical power wirelessly between the transmitting 212 and receiving 216 elements; and one or more non-receiver electronic devices configured to receive electrical power from a power supply via a wired connection, wherein the one or more transmitters 202 are configured to receive electrical power from the power supply via the wired connection of the one or more non-receiver electronic devices.

Abstract: A chamber (422) for a cryostat (420) includes: first and second annular sections (4221, 4222) separated and spaced apart from each other along a first direction, and a third annular section (4223) extending in the first direction between the first and second annular sections and connecting the first and second annular sections to each other. The first and second annular sections define corresponding first and second internal volumes, the third annular section defines a third internal volume, and the third internal volume is substantially less than the first internal volume and substantially less than the second internal volume.

Abstract: A honing apparatus includes a sharpening stone that has a sharpening surface configured to sharpen the edge of the blade upon engaging contact with the edge of the blade. A frame is operatively coupled to the sharpening stone, and a weight element is supported by the frame and positioned so as to urge the sharpening stone toward the edge of the blade. The frame may be pivotally coupled to a fixed element at a pivoting location, and the weight element may be positioned so as to create a moment about the pivoting location, with the moment urging the sharpening stone toward the edge of the blade.

Abstract: A honing apparatus includes a sharpening stone that has a sharpening surface configured to sharpen the edge of the blade upon engaging contact with the edge of the blade. A frame is operatively coupled to the sharpening stone, and a weight element is supported by the frame and positioned so as to urge the sharpening stone toward the edge of the blade. The frame may be pivotally coupled to a fixed element at a pivoting location, and the weight element may be positioned so as to create a moment about the pivoting location, with the moment urging the sharpening stone toward the edge of the blade.

Abstract: A method for applying a graphene coating to a substrate comprising iron or aluminium, the method comprising: providing a metallic layer on a surface of the substrate; and contacting said metallic layer with a source of carbon atoms to provide a graphene coating on the metallic layer. There is also described an iron- or aluminium-containing substrate, for example a component of a chain, with a metallic layer on a surface of the substrate and a graphene coating disposed on said metallic layer.

Abstract: A method and apparatus for reconstruction of a region of interest for an object is provided. The reconstruction of the object may be based on chords which may fill a part, all, or more than all of the region of interest. Using chords for reconstruction may allow for reducing data acquired and/or processing for reconstructing a substantially exact image of the ROI. Moreover, various methodologies may be used in reconstructing the image, such as backprojection-filtration, and modified filtration backprojection.

Abstract: A honing apparatus includes a sharpening stone that has a sharpening surface configured to sharpen the edge of the blade upon engaging contact with the edge of the blade. A frame is operatively coupled to the sharpening stone, and a weight element is supported by the frame and positioned so as to urge the sharpening stone toward the edge of the blade. The frame may be pivotally coupled to a fixed element at a pivoting location, and the weight element may be positioned so as to create a moment about the pivoting location, with the moment urging the sharpening stone toward the edge of the blade.