Abstract: A system for determining rotor-dynamic orbit information including an engine case supporting at least one engine stage, each at least one engine stage including a rotor having blades; at least one blade tip sensor operatively coupled to the engine case and in operative communication with the blades; at least one compensation sensor in operative communication with the at least one blade tip sensor; and an orbit controller in operative communication with the at least one blade tip sensor and the at least one compensation sensor.

Abstract: A bearing system is provided that includes a stationary structure, a rotating structure, a magnetic-foil bearing and a cooling jacket. The rotating structure is rotatable about an axis. The magnetic-foil bearing radially supports the rotating structure within the stationary structure. The magnetic-foil bearing includes a magnetic bearing stator, a magnetic bearing rotor and a foil bearing. The foil bearing is disposed radially between the magnetic bearing stator and the magnetic bearing rotor. The cooling jacket circumscribes and radially engages the magnetic bearing stator. A cooling circuit is configured to flow cooling fluid within the cooling jacket to cool the magnetic bearing stator.

Abstract: A bearing assembly is provided that includes a frame, a magnetic bearing stator and a foil bearing. The frame extends axially along and circumferentially about an axis. The frame includes an inner bore and a plurality of channels arranged circumferentially about the axis. The magnetic bearing stator includes a stator body and a plurality of windings. The stator body circumscribes the frame. The stator body includes a plurality of stator protrusions arranged circumferentially about the axis. Each of the stator protrusions projects radially inward into a respective one of the channels. Each of the windings is wrapped around a respective one of the stator protrusions. The foil bearing is disposed within the inner bore and retained to the frame.

Abstract: A turbine engine is provided that includes a compressor section, a combustor section, a turbine section, a flowpath, a first rotating structure, a second rotating structure and a bearing system. The flowpath extends through the compressor section, the combustor section and the turbine section from an inlet to an exhaust. The combustor section includes a combustor. The first rotating structure includes a first compressor rotor within the compressor section and a first turbine rotor within the turbine section. The second rotating structure includes a second turbine rotor within the turbine section. The first turbine rotor is between the combustor and the second turbine rotor along the flowpath. The bearing system rotatably supports the first rotating structure. The bearing system includes an active magnetic bearing and a foil bearing.

Abstract: An assembly is provided that includes a rotating structure, a bearing, a sensor system, a power system and a controller. The rotating structure is rotatable about an axis. The bearing rotatably supports the rotating structure. The bearing includes a magnetic bearing stator and a magnetic bearing rotor mounted with the rotating structure. The sensor system is configured to provide bearing sensor data indicative of a position of the magnetic bearing rotor relative to the magnetic bearing stator. The power system is electrically coupled to the magnetic bearing stator. The controller is configured to signal the power system to power the magnetic bearing stator based on the bearing sensor data. The controller is configured to monitor health of the rotating structure based on the bearing sensor data.

Abstract: An assembly is provided for a turbine engine. This assembly includes a stationary structure, a rotating structure, a magnetic-foil bearing and a cooling system. The rotating structure is rotatable about an axis. The magnetic-foil bearing radially supports the rotating structure within the stationary structure. The magnetic-foil bearing includes a magnetic bearing stator, a magnetic bearing rotor and a foil bearing. The foil bearing is disposed radially between the magnetic bearing stator and the magnetic bearing rotor. The cooling system includes a cooling circuit configured to deliver cooling air to at least a first bearing component. The first bearing component is configured as or otherwise includes one of the magnetic bearing stator, the magnetic bearing rotor and the foil bearing.

Abstract: A magnet system is provided for generating a homogeneous magnetic field in a target region that finds benefit in the field of nuclear magnetic resonance (NMR), particularly NMR spectroscopy. The magnet system comprises a first magnet having a first solenoid formed from superconductor material and a set of one or more pairs of compensation coils, each said pair being disposed coaxially with the first solenoid and symmetrically positioned with an axial offset about the geometrical centre point so as to define an annular volume within the bore between the set of compensation coils. A first pair of compensation coils in the set is connected in electrical series with the first solenoid. A shim system is disposed within the annular volume and comprising one or more superconducting shim coils. The magnetic field in the target region has a homogeneity of less than 10 parts per million, wherein the target region is a 1 cm diameter spherical volume centred on the centre point.

Abstract: A quench protection arrangement for a superconducting magnet is disclosed. The arrangement comprises: a superconducting magnet comprising a plurality of magnet sections; a plurality of varistors, wherein each of the plurality of varistors is electrically connected in parallel across a respective one of the plurality of magnet sections; and a heater arrangement electrically connected to the plurality of varistors and configured to apply heat to each of the plurality of magnet sections in response to a change in a voltage across any one or more of the plurality of varistors. A method of protecting a superconducting magnet is also disclosed.

Abstract: Systems and methods for publication and external interfacing for a unified document surface are disclosed. An example system may include a document serving circuit structured to access a document data, the document data including data for a unified document surface, and to provide at least a portion of the document data to a client serving circuit; the client serving circuit structured to implement a unified document surface interface in response to the at least a portion of the document data; the client serving circuit further structured to implement an extension creation interface, and to provide a pack implementation value to the document serving circuit in response to user interactions with the extension creation interface; and wherein the document serving circuit is further structured to determine a pack definition value in response to the pack implementation value.

Abstract: A quench protection arrangement for a superconducting magnet is disclosed. The arrangement comprises: a superconducting magnet comprising a plurality of magnet sections; a plurality of varistors, wherein each of the plurality of varistors is electrically connected in parallel across a respective one of the plurality of magnet sections; and a heater arrangement electrically connected to the plurality of varistors and configured to apply heat to each of the plurality of magnet sections in response to a change in a voltage across any one or more of the plurality of varistors. A method of protecting a superconducting magnet is also disclosed.

Abstract: The present invention relates to the reduction of the side-effects induced by tetrabenazine or other inhibitors of vesicular monoamine transporter (VMAT), in the treatment of central nervous system disorders such as Huntington's disease, L-DOPA-induced dyskinesias in Parkinson's disease, Tourette's syndrome or tardive dyskinesia. The invention comprises administering to a patient in need thereof an effective amount of activates selective serotonin 5-HT1A receptors agonist, whereby the side-effects of depression or Parkinsonism induced by tetrabenazine or other VMAT inhibitors are minimized.

Abstract: A fluid damping structure includes first and second annular elements, first and second inner seals, a first outer seal, a damping chamber, a supply plenum, a fill port, and a plurality of fluid passages. The first and second inner seals are disposed radially between and are engaged with the first annular element and the second annular element. The first outer seal forms a sealing interface between the first and second annular elements. The first outer seal is disposed radially outward from the first and second inner seals. The damping chamber is defined by the first and second annular elements and the first and second inner seals. The supply plenum is disposed contiguous with an axial side of the damping chamber and extends from the second inner seal to the first outer seal. The fill port is in fluid communication with the supply plenum and a source of damping fluid.

Abstract: An actively controlled squeeze film damper system comprises a housing defining an annulus receiving a damping fluid during operation, a lubricant source supplying damping fluid to the annulus, and a sensor assembly for measuring a parameter indicative of a compressibility of the damping fluid. A control device adjusts the compressibility of the damping fluid within a predefined range.

Abstract: An actively controlled squeeze film damper system comprises a housing defining an annulus receiving a damping fluid during operation, a lubricant source supplying damping fluid to the annulus, and a sensor assembly for measuring a parameter indicative of a compressibility of the damping fluid. A control device adjusts the compressibility of the damping fluid within a predefined range.

Abstract: The present invention relates to the reduction of the side-effects induced by tetrabenazine or other inhibitors of vesicular monoamine transporter (VMAT), in the treatment of central nervous system disorders such as Huntington's disease, L-DOPA-induced dyskinesias in Parkinson's disease, Tourette's syndrome or tardive dyskinesia.

Abstract: A bearing assembly includes a bearing housing having a first bearing housing surface and a second bearing housing surface. The bearing housing surfaces are substantially axially parallel. A the first bearing housing surface has a first and second piston ring groove with a corresponding piston ring in each groove. A damper includes a first outer surface radially adjacent to and opposing the first bearing housing surface and a second outer surface radially adjacent to and opposing the second bearing housing surface. The second outer surface includes a third and fourth piston ring groove with a corresponding piston ring disposed in each groove. The bearing housing includes a damping fluid passage configured to provide damping fluid to a gap radially between the first outer surface and the first bearing housing surface and to a gap radially between the second outer surface and the second bearing housing surface.

Abstract: The invention concerns compounds that possess a high affinity at 5-HT1A receptors and an agonist efficacy, as measured by Emax values from a cellular activation assay, that is higher than that of the compounds described in prior art. The capacity of the compounds of the invention to activate an effector protein complex is higher than that the most efficacious agonist described in prior art. Compounds of the invention also exhibit an exceptionally high selectivity (Ki ratio greater than 1000-fold) with respect, in particular, to dopamine D2 receptors and adrenergic receptors of the alpha1 subtype. This selectivity which constitutes a great advantage since it means that the compounds will avoid inducing (central and peripheral) effects associated with activating or inhibiting such receptors.

Abstract: A bearing assembly includes a case, a bearing spring positioned inside the case, a first seal positioned between the case and the bearing spring, and a second seal. The a second seal is positioned between the case and the bearing spring and is spaced apart from the first seal, wherein the second seal is an adjustable seal that is movable between a closed position and an opened position to inhibit or allow, respectively, a fluid to flow from a cavity that is defined by the case, the bearing spring, the first seal and the second seal.

Abstract: The invention concerns compounds that possess a high affinity at 5-HT1A receptors and an agonist efficacy, as measured by Emax values from a cellular activation assay, that is higher than that of the compounds described in prior art. The capacity of the compounds of the invention to activate an effector protein complex is higher than that the most efficacious agonist described in prior art. Compounds of the invention also exhibit an exceptionally high selectivity (Ki ratio greater than 1000-fold) with respect, in particular, to dopamine D2 receptors and adrenergic receptors of the alpha1 subtype. This selectivity which constitutes a great advantage since it means that the compounds will avoid inducing (central and peripheral) effects associated with activating or inhibiting such receptors.

Abstract: A bearing assembly includes a case, a bearing spring positioned inside the case, a first seal positioned between the case and the bearing spring, and a second seal. The a second seal is positioned between the case and the bearing spring and is spaced apart from the first seal, wherein the second seal is an adjustable seal that is movable between a closed position and an opened position to inhibit or allow, respectively, a fluid to flow from a cavity that is defined by the case, the bearing spring, the first seal and the second seal.