Abstract: The invention relates to retention systems for retaining items during use of a mobility chair. According to one embodiment, a mobility chair includes a frame, wheels and a seat; and an item retention system including one or more retractable straps such that when, in use, a user is positioned on the seat, the one or more retractable straps are arranged to be extended and secured to retain one or more items positioned on the user's lap or on the seat in front of the user. A related method of retaining an item or items on the user's lap is also described.

Abstract: A module for a fire-mitigating surge arrester includes: an inner arrester module including an electrically conductive assembly; a cartridge including a first end, a second end, a sidewall that extends between the first end and the second end, and an exhaust region in the sidewall, the sidewall surrounding the inner arrester module; a first electrical component in contact with a first end of the electrically conductive assembly and the first end of the cartridge; a second electrical component in contact with a second end of the electrically conductive assembly and the second end of the cartridge; and a reinforcement structure on the sidewall, the first electrical component, and the second electrical component.

Abstract: An installation for melting metallic scraps, and particularly adapted for melting aluminium scraps, includes a system for cleaning the metallic scraps, and in particular for cleaning the scraps from organic compounds.

Abstract: Embodiments of the invention are directed to systems, methods, and computer program products for generation and management of controlled-use resources which allow the sender of an electronic resource transfer to limit the ways in which the recipient may use the received resources. This invention allows the sender to maintain control over the products or services purchased with transferred resources, as well as personalize a transfer for a recipient by selecting a favorite merchant or spending category of the recipient. The invention may also benefit a plurality of merchants and other third party entities which may obtain new customers as a result of said customers receiving controlled-use resources designated for said merchants.

Abstract: A module for a fire-mitigating surge arrester includes: an inner arrester module including an electrically conductive assembly; a cartridge including a first end, a second end, a sidewall that extends between the first end and the second end, and an exhaust region in the sidewall, the sidewall surrounding the inner arrester module; a first electrical component in contact with a first end of the electrically conductive assembly and the first end of the cartridge; a second electrical component in contact with a second end of the electrically conductive assembly and the second end of the cartridge; and a reinforcement structure on the sidewall, the first electrical component, and the second electrical component.

Abstract: The invention relates to retention systems for retaining items during use of a mobility chair. According to one embodiment, a mobility chair includes a frame, wheels and a seat; and an item retention system including one or more retractable straps such that when, in use, a user is positioned on the seat, the one or more retractable straps are arranged to be extended and secured to retain one or more items positioned on the user's lap or on the seat in front of the user. A related method of retaining an item or items on the user's lap is also described.

Abstract: A method for recovering crude oil from a reservoir including at least one layer of reservoir rock having crude oil and a formation water within the pore space thereof includes injecting into the layer(s) of reservoir rock from an injection well, alternating slugs of an aqueous displacement fluid comprising a concentrated solution of a water-soluble additive in an aqueous solvent and of an aqueous spacer fluid. The number of injected slugs of aqueous displacement fluid, n, is in the range of 15 to 1000 per swept pore volume, PVR, of the layer(s) of reservoir rock. The injected pore volume of each individual slug, PVSlug-i, of aqueous displacement fluid is in the range of 10?12 to 10?2 of the swept pore volume, PVR, of the layer(s) of reservoir rock. The total injected pore volume of the slugs of aqueous displacement fluid is in the range of 10?8 to 10?1 of the swept pore volume, PVR, of the layer(s) of reservoir rock.

Abstract: A method for recovering crude oil from a reservoir including at least one layer of reservoir rock having crude oil and a formation water within the pore space thereof includes injecting into the layer(s) of reservoir rock from an injection well, alternating slugs of an aqueous displacement fluid comprising a concentrated solution of a water-soluble additive in an aqueous solvent and of an aqueous spacer fluid. The number of injected slugs of aqueous displacement fluid, n, is in the range of 15 to 1000 per swept pore volume, PVR, of the layer(s) of reservoir rock. The injected pore volume of each individual slug, PVSlug-i, of aqueous displacement fluid is in the range of 10?12 to 10?2 of the swept pore volume, PVR, of the layer(s) of reservoir rock. The total injected pore volume of the slugs of aqueous displacement fluid is in the range of 10?8 to 10?1 of the swept pore volume, PVR, of the layer(s) of reservoir rock.

Abstract: A system and method determining a camera pose. The method comprises receiving a first image and a second image, the first and second images being associated with a camera pose and a height map for pixels in each corresponding image, and determining a mapping between the first image and the second image using the corresponding height maps, the camera pose and a mapping of the second image to an orthographic view. The method further comprises determining alignment data between the first image transformed using the determined mapping and the second image and determining a refined camera pose based on the determined alignment data and alignment data associated with at least one other camera pose.

Abstract: An apparatus for unsheathing and resheathing a needle device. The apparatus has a housing, a cam member that is movable in an axial direction relative to the housing, a ratchet member that is rotatable relative to the housing and movable in the axial direction between a first position and a second position upon movement of the cam member, and a clamp having at least two jaw members, configured to receive at least a portion of a needle sheath. In the first position of the ratchet member, the jaw members are in an open configuration for receipt or release of the needle sheath, and in the second position of the ratchet member, the ratchet member and/or the cam member holds the jaw members in a gripping position for gripping the needle sheath.

Abstract: An installation for melting metallic scraps, and particularly adapted for melting aluminium scraps, includes a system for cleaning the metallic scraps, and in particular for cleaning the scraps from organic compounds.

Abstract: A method for selecting an aqueous displacement fluid comprising an aqueous solution of dissolved phosphate species includes obtaining reservoir parameters for a reservoir, receiving an input comprising a permitted loss of dissolved phosphate species resulting from mixing of the aqueous displacement fluid and resident water following injection of a selected pore volume of the aqueous displacement fluid, selecting an aqueous displacement fluid, and determining that a composition of the aqueous displacement fluid is within an operating envelope using the reservoir parameters and the permitted loss of dissolved phosphate species. The reservoir parameters include physical characteristics of the reservoir and chemical characteristics of the resident water. The operating envelope defines boundary conditions for one or more parameters of the composition of the aqueous displacement fluid to limit a loss of dissolved phosphate species upon injection into the reservoir to less than or equal to the permitted loss.

Abstract: A system and method determining a camera pose. The method comprises receiving a first image and a second image, the first and second images being associated with a camera pose and a height map for pixels in each corresponding image, and determining a mapping between the first image and the second image using the corresponding height maps, the camera pose and a mapping of the second image to an orthographic view. The method further comprises determining alignment data between the first image transformed using the determined mapping and the second image and determining a refined camera pose based on the determined alignment data and alignment data associated with at least one other camera pose.

Abstract: An apparatus for unsheathing and resheathing a needle device. The apparatus has a housing, a cam member that is movable in an axial direction relative to the housing, a ratchet member that is rotatable relative to the housing and movable in the axial direction between a first position and a second position upon movement of the cam member, and a clamp having at least two jaw members, configured to receive at least a portion of a needle sheath. In the first position of the ratchet member, the jaw members are in an open configuration for receipt or release of the needle sheath, and in the second position of the ratchet member, the ratchet member and/or the cam member holds the jaw members in a gripping position for gripping the needle sheath.

Abstract: A steam turbine with a resonance chamber in the outer annulus opposite a rotating blade row. The resonance chamber provides passive resonance to place the excitation at a frequency away from the natural frequency of the blades.

Abstract: A valve stem sealing unit (65) for forming a seal round a valve stem (41, 43) of a poppet valve (19, 21) in an engine (1) having a body (5, 7, 13) and operated by a working fluid, the valve stem sealing unit (65) including: a housing (67) defining a through passage (79) running from a first end to a second end, the through passage (69) being arranged to receive a portion of the valve stem (41, 43); a first seal (85) arranged to form a seal between the valve stem (41, 43) and the housing (69) to prevent egress of the working fluid from the first end of the housing (69); and a second seal (89) arranged to form a seal between the housing (69) and a body (5, 7, 13) of the engine (1) to prevent egress of the working fluid from the second end of the housing (69).

Abstract: An electrical transmission system is described herein. The electrical transmission system can include at least one first phase high-voltage conductor. The electrical transmission system can also include an arrester coupled to the at least one first phase high-voltage conductor, where the arrester includes an arrester body and an isolator, where the arrester body includes a top end and a bottom end, where the top end of the arrester is coupled to the at least one first phase high-voltage conductor, and where the bottom end of the arrester body is coupled to the isolator. The electrical transmission system can further include a ground conductor coupled to a bottom end of the isolator of the arrester. The electrical transmission system can also include a tether coupled to the ground conductor, where the tether comprises a distal end, where the distal end of the tether is coupled to the arrester above the isolator.

Abstract: A method for preparing plan-view transmission electron microscopy specimens is disclosed. The method employs isotropic vapor-phase etching in conjunction with one or more integrated etch-stop layers that give rise to a support membrane having a well-controlled, substantially uniform thickness. In some embodiments, the support membrane comprises an etch-stop layer that is formed using a high-precision formation process, such as atomic-layer deposition, oxidation, and the like. As a result, formation of the support membrane does not require additional processes, such as mechanical polishing or ion milling, to achieve its desired thickness. The method enables reduced specimen-preparation time, as well as simultaneous preparation of multiple specimens having large, uniformly thick areas for imaging.

Abstract: A discrete bypass particle concentrator can significantly reduce surface fouling and manufacturing cost by including bypass stages after each of concentration stages.