Abstract: The invention relates to a rotor (1) of an electric machine (2), said rotor comprising a rotor body (4) which can be rotated about a rotor axis (3) and which, with respect to a cross-section, has a plurality of rotor poles (5) each having a pole center axis, (6) wherein; a plurality, in particular all, of the rotor poles (5) have a two-layer magnet assembly (7) comprising a plurality of magnets (8), in particular permanent magnets; each magnet assembly (7), as viewed in the radial direction with respect to the rotor axis (3), comprises an inner layer (10) of at least three magnets (8) and an outer layer (11) composed of two magnets (8); the inner layer (10) forms a radially outwardly open arc; the outer layer (11) is designed such that the distance between the magnets (8) of the outer layer (11) increases radially outwards; and the magnets (8.

Abstract: The disclosure provides methods, systems and devices for guiding breathing of a wearer through a breathing pattern. The system includes a wearable device with a non-rotating body and a rotating body, the rotating body configured to rotate about the non-rotating body, a position sensor coupled to the wearable device, a physiological sensor in communication with the wearer configured to detect at least one physiological parameter of the wearer, an actuator, a guiding element in communication with the actuator and configured to provide one or more guiding signals to the wearer, and a controller in communication with the actuator, the physiological sensor and the position sensor. The controller includes an input unit, a processing unit and an output unit for transmitting an output signal to the actuator to actuate the guiding element to provide one or more guiding signals to the wearer to guide the wearer through the breathing pattern.

Abstract: A backflow prevention device includes a main pipe body extending along a first center longitudinal axis, at least one check valve disposed within the main pipe body, an inlet pipe connected to an inlet side of the main pipe body, and an outlet pipe connected to an outlet side of the main pipe body. The inlet pipe and the outlet pipe extend along a second center longitudinal axis. The first center longitudinal axis is offset with respect to the second center longitudinal axis in a direction perpendicular to the first and second center longitudinal axes. A center of the valve seat of the at least one check valve is offset with respect to the second center longitudinal axis in the direction perpendicular to the first and second longitudinal axes.

Abstract: A check valve may include: a check seat defining a flow path; a clapper assembly hingedly connected to the check seat and configured to obstruct the flow path, including: a clapper and a seal retainer detachably mounted to the clapper; a first extension extending from the clapper assembly in an upstream direction and having a roller; a cam arm rotatable relative to the clapper assembly and configured to engage with the roller; and a torsion spring operatively connected to the cam arm so as to apply a biasing force to the cam arm in the upstream direction. The biasing force may be imparted to the clapper assembly via the cam arm and roller, so that the clapper assembly obstructs the flow path.

Abstract: A spring stop arrangement for a check valve may include: a check seat defining a flow path; a clapper assembly connected to the check seat and configured to obstruct the flow path, the clapper assembly including: a clapper; and a seal retainer detachably mounted to the clapper; a cam arm connected to the check seat, the cam arm including a stopper; and a torsion spring operatively connected to the cam arm so as to apply a biasing force to the cam arm against the direction of fluid flow. When the seal retainer is dismounted from the clapper, the stopper may be configured to contact the check seat so as to prevent rotation of the cam arm.

Abstract: A valve diaphragm for a relief valve may include: a body having a first beaded end and a second beaded end, the first beaded end having a bottom surface and a bulge extending from the bottom surface. The bottom surface may be configured to contact a first portion of a corner of a lower valve body, and the bulge is configured to contact a step of an upper valve body, and the engagements of the bottom surface, the first portion of the corner, the bulge, and the step may be configured to create a fluid tight seal between the upper valve body and the lower valve body.

Abstract: A backflow prevention device includes a main pipe body extending along a first center longitudinal axis, at least one check valve disposed within the main pipe body, an inlet pipe connected to an inlet side of the main pipe body, and an outlet pipe connected to an outlet side of the main pipe body. The inlet pipe and the outlet pipe extend along a second center longitudinal axis. The first center longitudinal axis is offset with respect to the second center longitudinal axis in a direction perpendicular to the first and second center longitudinal axes. A center of the valve seat of the at least one check valve is offset with respect to the second center longitudinal axis in the direction perpendicular to the first and second longitudinal axes.

Abstract: Analysis of a seismic event, such as a microseismic event caused by hydraulic fracturing, comprises measuring seismic waves emitted by the event and converting the measurements into two values for magnitude of explosion or implosion and for magnitude of displacement discontinuity at a plane, together with two directions, a direction of a normal to the plane and a direction of displacement; where the two values and the two directions compose the moment tensor describing the seismic event. The measurements may be converted into the moment tensor and decomposed into the values and directions. The values and directions associated with several seismic events may be displayed concurrently on a graphic display as a graphic representation of multiple events, where each event may be depicted with magnitude of expansion or contraction represented by a volume and the plane represented as a laminar object.

Abstract: Method for allocating identification codes which are contained in signals transmitted by components of a tire pressure monitoring system, said components being attached to wheels of the vehicle, to the wheel positions. A plurality of sensors to the tire pressure, to the rolling direction of the wheel, to the shocks, as well as a memory for the identification code, and a transmitter which supplies signals with the identification code, the rolling direction and the occurrence of a shock on a wheel to a receiver which, based on the supplied rolling direction information, distinguishes identification codes pertaining to wheels on the left-hand or right-hand side of the vehicle from shocks which occur on the left-hand or right-hand side of the vehicle, measures the time interval elapsing between shock signals on one side of the vehicle, multiplies this time interval by the velocity of the vehicle measured within the same time interval.

Abstract: The present invention relates to a computer-implemented system for web content management, wherein ratings of page relevance to search goals are used to streamline the interface and enhance search engine accuracy. The usage model combines a “view queue” of pages marked for imminent inspection together with “rate and go” buttons that simultaneously record a rating of the current page's relevance to the present search goal and dismiss the current page, replacing it with another from the view queue. For no extra effort, the user is rewarded with more intelligent window and history management based on knowledge of the ratings, whilst the search and authoring community benefits from uploading of the rating data. In an advanced embodiment, search attempts are automatically grouped into “search contexts” within which the relevance ratings are scoped.

Abstract: Analysis of a seismic event, such as a microseismic event caused by hydraulic fracturing, comprises measuring seismic waves emitted by the event and converting the measurements into two values for magnitude of explosion or implosion and for magnitude of displacement discontinuity at a plane, together with two directions, a direction of a normal to the plane and a direction of displacement; where the two values and the two directions compose the moment tensor describing the seismic event. The measurements may be converted into the moment tensor and decomposed into the values and directions. The values and directions associated with several seismic events may be displayed concurrently on a graphic display as a graphic representation of multiple events, where each event may be depicted with magnitude of expansion or contraction represented by a volume and the plane represented as a laminar object.

Abstract: A method of assembling pallets 14, 20, 28 containing first stock units 50 for use in the fulfillment of stock orders, the method comprising the steps of providing a plurality of first pallets 14 each containing a quantity of the first stock units 50 and moving a portion of the first stock units 50 from at least one of the first pallets 14 onto one or more second pallets 20 in establishing desired quantities of the first stock units 50 in the first and second pallets 14, 20 for use in the fulfillment of the stock orders. In one form, the sequence of order fulfillment is controlled to increase the quantity of first stock units on the first pallets used in fulfilling the stock orders. A distribution system and control system is also disclosed.

Abstract: Systems and methods for defining a form with a plurality of layout items for data presentation by a business application provide a tree view with tree nodes to represent the layout items, wherein the view visualizes structure information, a processing order, a selected tree node to represent a selected layout item; provide a property view to display properties of the selected layout item; provide a layout view to display items, wherein the selected layout item is highlighted; modify the selected layout item and the processing order through interaction with a user; and create a form definition document. The compatibility of layout items and processing order with a predefined data interface of the business application is verified as well.

Abstract: A method of assembling pallets 14, 20, 28 containing first stock units 50 for use in the fulfilment of stock orders, the method comprising the steps of providing a plurality of first pallets 14 each containing a quantity of the first stock units 50 and moving a portion of the first stock units 50 from at least one of the first pallets 14 onto one or more second pallets 20 in establishing desired quantities of the first stock units 50 in the first and second pallets 14, 20 for use in the fulfilment of the stock orders. In one form, the sequence of order fulfilment is controlled to increase the quantity of first stock units on the first pallets used in fulfilling the stock orders. A distribution system and control system is also disclosed.

Abstract: A compound centrifugal and screw compressor comprising two separate sections. The first section is a conventional centrifugal compressor body 2 with a plurality of radial vanes 3 and 4 on the front face. The second section of the compressor is a screw type compressor with a plurality of helical vanes 6 mounted on a conical screw body 5; the helical vanes 6 are lesser in number than the short radial vanes 4 and the same in number as the long radial vanes 3, typically one quarter to one third, and mate up with longer radial vanes 3 at the extremity of the centrifugal 2 compressor rim. The conical screw body 5 is the same diameter as the outer rim of the centrifugal compressor and reduces down at the output end. The helical vanes each complete one full turn.

Abstract: A high lift stepped aerofoil section, incorporating a leading edge 1, trailing edge 3 and a step 2 to provide a higher vertical component in its construction; the aerofoil has greater perceived root thickness giving greater lift through compression 4 on the aerofoil undersurface. The section has high pressure area 5 below the aerofoil and low pressure area 6 above the aerofoil. The aerofoil has much higher strength on all axes than conventional aerofoil sections.

Abstract: A compound centrifugal and screw compressor comprising two separate sections. The first section is a conventional centrifugal compressor body 2 with a plurality of radial vanes 3 and 4 on the front face. The second section of the compressor is a screw type compressor with a plurality of helical vanes 6 mounted on a conical screw body 5; the helical vanes 6 are lesser in number than the short radial vanes 4 and the same in number as the long radial vanes 3, typically one quarter to one third, and mate up with longer radial vanes 3 at the extremity of the centrifugal 2 compressor rim. The conical screw body 5 is the same diameter as the outer rim of the centrifugal compressor and reduces down at the output end. The helical vanes each complete one full turn.

Abstract: This jet engine comprises of a complete low bypass turbofan unit 1 including secondary fan unit 2 and engine core, some five to eight feet ahead of which sits a larger diameter main fan unit 3 driven from the turbofan 1 via drive shaft 4. Between the main and secondary fans sits a reversed variable area nozzle 5 connected to the forward end of the secondary fan by a short inlet tube 6, fitted with intercooler 12. At the back of said core sits another variable area nozzle 7 facing rearwards. This arrangement; front nozzle, inlet tube, secondary fan, core, rear nozzle, is enclosed by a variable diameter cylinder 8, providing a variable area bypass duct 9 between cylinder and engine outer casing 10 that extends backwards from the outer diameter of said main fan. A third variable area nozzle 11 is positioned aft of the outer casing facing rearwards.

Abstract: This jet engine comprises a complete low bypass turbofan unit 1 including secondary fan unit 2 and engine core, ahead of which sits a larger diameter main fan unit 3 driven from the front of the secondary fan via a long drive shaft 4. A center portion of the main fan feeds the secondary fan via long central duct 5. The outer portion of the main fan is ducted into a split exhaust plenum chamber 6. This chamber has thrust vectoring exhaust mechanisms 7 immediately attached to each side, and then each side then feeds a thrust splitter 10, and then feeds to variable area outer ducting 8, using double-hinged inner and outer doors 9. Both outer ducts rejoin the central duct downstream in a second plenum chamber 11 just ahead of the secondary fan. Between this chamber and secondary fan is an intercooler 12.

Abstract: A form with a plurality of layout items for data presentation by a business application is defined by—simultaneously and one a single screen—providing (410) a tree view with tree nodes to represent the layout items, wherein the view visualizes structure information, a processing order, a selected tree node to represent a selected layout item; providing (420) a property view to display properties of the selected layout item; providing (430) a layout view to display items, wherein the selected layout item is highlighted; modifying (440) the selected layout item and the processing order through interaction with a user; and creating (450) a form definition document. The compatibility of layout items and processing order with a predefined data interface of the business application is verified as well.