Abstract: A fan section of an aeronautical propulsion system includes a fan rotor including seventeen blades to twenty blades and having a solidity strictly less than 1.0. The solidity is equal to a ratio between a chord at the blade tip and an inter-blade pitch at the blade tip. The fan section has a hub-tip ratio greater than or equal to 0.22 and less than or equal to 0.32, a pressure ratio greater than or equal to 1.05 and less than or equal to 1.5, and a peripheral speed at the blade tip greater than or equal to 260 m/s and less than or equal to 400 m/s. The pressure ratio and the peripheral speed are measured at cruising speed.

Abstract: A method for recognizing handwritten text is disclosed. The method comprises receiving data comprising a sequence of ink points; applying the received data to a neural network-based sequence classifier trained with a Connectionist Temporal Classification (CTC) output layer using forced alignment to generate an output; generating a character hypothesis as a portion of the sequence of ink points; applying the character hypothesis to a character classifier to obtain a first probability corresponding to the probability that the character hypothesis includes the given character; processing the output of the CTC output layer to determine a second probability corresponding to the probability that the given character is observed within the character hypothesis; and combining the first probability and the second probability to obtain a combined probability corresponding to the probability that the character hypothesis includes the given character.

Abstract: A diffractive optical element, such as a holographic plasma lens, can be made by direction two laser beams so that they overlap in a nonlinear material, to form an interference pattern in the nonlinear material. The interference pattern can modify the index of refraction in the nonlinear material to produce the diffractive optical element. The interference pattern can modify the distribution of plasma for the nonlinear material, which can adjust the index of refraction. A third laser beam can be directed through the diffractive optical element to modify the third laser beam, such as to focus, defocus, or collimate the third laser beam.

Abstract: Apparatus includes a sample holder with a cavity and a plurality of devices configured to hold a curvature of a curved substrate in a fixed configuration. Apparatus includes two prisms with a viewing apparatus of the sample holder configured to translate therebetween. Methods can include disposing the curved substrate in the sample holder, transmitting a first beam, translating the sample holder, and transmitting a second beam. Alternatively, apparatus include a light scattering-polarimetry sub-system configured to emit a first beam to impinge an end surface of coupling prism and detect at least a portion of the first beam impinging the first surface of the coupling prism. The apparatus includes an evanescent prism coupling spectroscopy sub-system configured to emit a second beam to impinge a first surface of the coupling system and detect at least a portion of the second beam impinging the second surface of the coupling prism.

Abstract: The invention relates to a method implemented by a computing device for processing math and text in handwriting, comprising: identifying symbols by performing handwriting recognition on a plurality of strokes; classifying, as a first classification, first symbols as either a text symbol candidate or a math symbol candidate with a confidence score reaching a first threshold; classifying, as a second classification, second symbols other than first symbols as either a text symbol candidate or a math symbol candidate with a respective confidence score by applying predefined spatial syntactic rules; updating or confirming, as a third classification, a result of the second classification by establishing semantic connections between symbols and comparing the semantic connections with the result of the second classification; and recognising each symbol as either text or math based on a result of said third classification.

Abstract: A blade for an unducted fan of a turbomachine includes an airfoil formed of plural airfoil sections that are stacked along an airfoil axis. A difference in sweeps corresponding to a difference between a leading edge sweep and a trailing edge sweep is negative, and substantially between ?30° and 0°, for any airfoil section whose height is between 10% and 30% of an airfoil height of the airfoil, and is positive, and substantially between 0° and +40°, for any airfoil section whose height is between 50% and 90% of the airfoil height.

Abstract: A blade for a ducted fan of a turbomachine includes an airfoil formed of plural airfoil sections stacked along an airfoil axis. A difference in sweep corresponding to a difference between a leading edge sweep and a trailing edge sweep of an airfoil section is substantially identical for any airfoil section having a height of between 10% and 20% of an airfoil height of the airfoil, and/or substantially identical for any airfoil section having a height of between 75% and 90% of the airfoil height.

Abstract: A method and an associated device for the combined conversion of multiple characteristics of an audio signal are disclosed. The changes allow the signal to be typed on the basis of a profile selected by a control unit. The method and the device are particularly intended for the field of loudspeakers.

Abstract: A system for controlling an autonomous vehicle is provided. The system may include a first sensor system including a first sensor and a first data box. The first sensor system may be configured to determine a first vehicle control decision. The system may further include a second sensor system including a second sensor and a second data box. The second sensor system may be configured to determine a second vehicle control decision. The system further includes a controller configured to receive the first vehicle control decision and the second vehicle control decision from the first sensor system and the second sensor system; determine a priority ranking for the first vehicle control decision and the second vehicle control decision; select, based on the priority ranking, a vehicle control decision from the first vehicle control decision and the second vehicle control decision; and implement, responsive to the determining, the selected vehicle control decision.

Abstract: A diffractive optical element, such as a holographic plasma lens, can be made by direction two laser beams so that they overlap in a nonlinear material, to form an interference pattern in the nonlinear material. The interference pattern can modify the index of refraction in the nonlinear material to produce the diffractive optical element. The interference pattern can modify the distribution of plasma for the nonlinear material, which can adjust the index of refraction. A third laser beam can be directed through the diffractive optical element to modify the third laser beam, such as to focus, defocus, or collimate the third laser beam.

Abstract: Systems and methods are disclosed for use with a valve of a heart. An implant (100) includes a wing (120); a flexible frame (124); and a pair of anchor receivers (150). A pair of shafts (660) are transluminally advanced through a catheter (40), while the shafts are each engaged with a respective anchor receiver (150), to deploy the implant out of the catheter such that the wing extends away from the anchor receivers and over a first leaflet of the valve and toward an opposing leaflet of the valve, with a contact face (122) of the wing facing the first leaflet. A pair of drivers (70) secure the implant using a pair of anchors (30) to anchor each anchor receiver to tissue at respective sites of the heart. Other implementations are also described.

Abstract: A plastic film roll includes: a convolute cardboard tube including a tubular body having a tubular body wall formed by a plurality of layers of a straight rolled cardboard sheet having a weight equal to or less than 300 gsm; a plastic film wound about the convolute cardboard tube to form a plurality of plastic film windings around the convolute cardboard tube, the plastic film windings creating a radial compression force equal to or greater than 10 bar on the tubular body wall, wherein the cardboard sheet includes a plurality of fibers, at least a majority of the fibers being substantially aligned in a tangential direction relative to the tubular body to allow the convolute cardboard tube to resist the radial compression force.

Abstract: A shunt device includes a cylindrical barrel portion formed of a plurality of struts arranged in a chevron pattern, a plurality of proximal anchor features emanating from a first axial end of the barrel portion, and a plurality of distal anchor arms emanating from a second axial end of the barrel portion, the plurality of distal anchor arms having a length that is greater than a length of the proximal anchor features.

Abstract: Automated methods and systems for machine monitoring are disclosed. Some embodiments, given by way of example, may include the processing of data associated with a machine by carrying out a time-frequency decomposition, by carrying out phase grouping, by carrying out cross-correlated time-frequency pseudo-distribution, and/or by carrying out peak detection on shared power in order to detect machine cycles. Some embodiments, given by way of example, may carry out a learning operation followed by a process-monitoring operation, thereby facilitating adjustment and operation with limited user interaction.

Abstract: An apparatus for culturing cells includes a bioreactor. The bioreactor may be modular and may include in a chamber a fixed bed, such as an unstructured or structured fixed bed (such as a spiral bed) for culturing cells, with a return column arranged centrally within the chamber. The modular bioreactor may include a plurality of structured fixed bed arranged in a stacked configuration. The modular bioreactor may include an outer casing forming a space for conditioning (e.g., insulating, heating, cooling) at least a chamber in which cells are cultured. The bioreactor may also include an impeller with radially curved blades, and may also suspend the impeller so that it may move from side-to-side and align with an external drive. Related methods are also disclosed.

Abstract: A method for manufacturing a blade from composite material having an added metal leading edge for a gas turbine aeroengine includes producing a blade body from composite material including a blade root part, a shank part and an airfoil body part; manufacturing, via additive manufacturing, a leading edge extending in a longitudinal direction between a lower end present at the shank part of the composite material and an upper end present at the tip; bonding the manufactured leading edge onto the foremost edge portion of the airfoil body of the blade body.

Abstract: A sampler for use with a bioreactor for growing a cell culture is disclosed. In one embodiment, the bioreactor includes a structured fixed bed including a removable sample portion for recovering a sample of cells from the cell culture. Related apparatuses and methods are also disclosed.

Abstract: The present technology relates to a polymer comprising at least one ester repeating unit and one ether repeating unit for use in an electrochemical cell, particularly in electrochemical accumulators such as lithium batteries, sodium batteries, potassium batteries and lithium-ion batteries. More specifically, the use of this polymer as a solid polymer electrolyte (SPE), as a matrix for forming gel electrolytes, or as a binder in an electrode material are also contemplated.

Abstract: A scattered light polarimetry (LSP) sub-system of a hybrid system for characterizing stress in a chemically-strengthened (CS) substrate having a top-surface and a near-surface waveguide, includes a LSP light source system, an LSP light source actuator coupled to the LSP light source system, and an optical compensator within an optical path of a LSP laser beam emitted by the LSP light source system. The optical compensator includes a half-wave plate, a half-wave plate actuator, a diffuser, and a diffuser actuator. The LSP sub-system further includes a LSP detector system in optical communication with the optical compensator through an LSP coupling prism having a LSP coupling surface, a focusing lens and a focusing lens actuator, and a support plenum having a surface and a measurement aperture, the support plenum configured to support the CS substrate at a measurement plane at the measurement aperture, and to operably support the LSP coupling prism.

Abstract: A paperboard protective corner and a method for manufacturing a paperboard protective corner, the paperboard protective corner comprising: a corner body made of a single paperboard sheet comprising first and second side edges, the single paperboard sheet being folded onto itself to form the paperboard protective corner, the single paperboard sheet including a plurality of folds, both the first and second side edges being received in a corresponding fold so as to be unexposed to an exterior of the paperboard protective corner.