Abstract: Exemplary embodiments pertain to a solution containing carbon black. The solution may be applied to a membrane filter of a microbial enumeration system as a post-rinse solution (i.e., after the membrane filter is rinsed with the sample of interest). The solution may reduce or suppress background autofluorescence, thereby improving detection and enumeration of colony forming units (CFUs) or other microbiological entities. The solution may be used in connection with a method for performing sample preparation for a microbial enumeration system. The carbon black solution may be manufactured according to a manufacturing process detailed herein.

Abstract: The invention may provide methods of characterising and/or optimising a well treatment. The method comprises calculating, estimating and/or determining at least one spatial or temporal tracer distribution moment for at least one tracer in a well before the well treatment and calculating, estimating and/or determining at least one spatial or temporal tracer distribution moment for the at least one tracer introduced into the well at a later stage or later portion of the well treatment or after at least well treatment stage has been completed or approaching completion. The method comprises comparing the at least one spatial or temporal tracer distribution moment of the tracers to estimate at least one characteristic of the well treatment.

Abstract: An apparatus for deployment in a conduit of a tubular having an obstruction includes a fish neck connected to a deployment device configured to deploy the fish neck into the conduit of the tubular. The apparatus also includes a sand bailer connected to the fish neck. The sand bailer has a diameter larger than a diameter of the fish neck and the sand bailer is configured to obtain a sample of the obstruction by creating a suction pressure within the sand bailer. The apparatus further includes an outer sleeve movable between a first position and a second position. The first position comprises the outer sleeve concentrically disposed around the sand bailer and the second position comprises the outer sleeve concentrically disposed around the fish neck after an interaction between the outer sleeve and the obstruction. The outer sleeve comprising a plurality of panels connected to one another by a plurality of stretchable elements.

Abstract: A seal assembly for a rotary machine. The seal assembly includes a rotor and a stator. The rotor is rotatable about a rotational axis and has a rotor seal face. The stator has a stator seal face. The stator seal face is positioned opposite the rotor seal face and faces the rotor seal face with a gap therebetween. A portion of one of the rotor and the stator is formed of (i) a shape memory alloy or (ii) a first metal and a second metal with the second metal having a coefficient of thermal expansion different from the first metal. The seal assembly is characterized by a seal clearance compliance ratio (SCCR) from 20% to 90%.

Abstract: A method of controlling an aeronautical gas turbine engine may be performed with an electronic controller. The method may include determining an airfoil pitch control command for at least one of a plurality of airfoils of the aeronautical gas turbine engine based at least in part on an excitation load acting upon the aeronautical gas turbine engine, and outputting the airfoil pitch control command to one or more actuators actuatable to change a pitch angle of the at least one of the plurality of airfoils. The airfoil pitch control command may be configured to augment and/or compensate for the excitation load acting upon the aeronautical gas turbine engine. The method may be embodied by a non-transitory computer-readable medium that includes computer-executable instructions, which when executed by a processor associated with the electronic controller, cause the electronic controller to perform the method.

Abstract: An aircraft propulsion includes a core engine section that defines a core flow path where an inlet airflow is compressed, mixed with fuel, and ignited to generate an exhaust gas flow, an inner nacelle assembly that surrounds the core engine section, an outer nacelle assembly that is spaced radially apart from the inner nacelle assembly, and a strut heat exchanger that extends radially between the inner nacelle assembly and the outer nacelle assembly, within the strut heat exchanger a portion of the exhaust gas flow is placed in thermal communication with a second flow for transferring thermal energy.

Abstract: A strong connection that ensures alignment between components and which is capable of being used for high-pressure applications. The connection is held together with one or more pins that are positioned tangentially along the interfacing plane of the components and which pins are positioned such that they are placed in sheer along a significant portion of their length instead of merely across their diameter. The pins can be held in place with one or more structures, which can include threaded fasteners, to prevent the pins from being inadvertently removed.

Abstract: A pivot shaft assembly includes a shaft member extending through a base seat and including a fixed tubular piece pivotably connected with the base seat, and a movable tubular piece movably disposed within the fixed tubular piece. The fixed and movable tubular pieces respectively have a retreated hole and a through hole extending radially. A fastening member has an engaging protrusion resiliently projecting from the through hole. In a fastened state, the shaft member is inclined and the through hole is aligned with the retreated hole to permit the engaging protrusion to extend through the retreated hole so as to retain the movable tubular piece to the fixed tubular piece. During shifting to a releasable state where the shaft member extends parallel, the engaging protrusion is pressed by a fastener releasing portion and retreated into the retreated hole to permit movement of the movable tubular piece.

Abstract: A preform for a composite may include a plurality of fibrous layers consolidated together and forming the preform extending along a longitudinal axis. The plurality of fibrous layers includes at least one first fibrous layer and at least one second fibrous layer. The at least one first fibrous layer includes a plurality of first segments, and the least one second fibrous layer includes a plurality of second segments. At least one first segment of the plurality of first segments includes a plurality of reinforcing fibers extending at an angle ?? relative to a radial direction extending from the longitudinal axis. At least one second segment of the plurality of second segments includes a plurality of reinforcing fibers extending at an angle +? relative to the radial direction. ? is greater than 0° and less than 90°.

Abstract: Some example embodiments may relate to laterally moveable compressor piston rod lip seals. For example, a piston rod lip seal assembly may include a lip seal including a circumferential lip configured to seal an inner diameter of the lip seal. The piston rod lip seal assembly may be configured for lateral motion of a piston rod within a housing component, and the lateral motion may be perpendicular to an axis of the piston rod. The piston rod lip seal assembly may further include a heel, a circumferential outer ring, and a spring. The spring may be disposed between, and in contact with, the circumferential lip and the circumferential outer ring. The piston rod lip seal assembly may further include a wave spring configured for face contact with a housing component.

Abstract: The invention discloses a lifting mechanism. The lifting mechanism includes a first pivot element and a second pivot element. The first pivot element has a pivot hole and includes a first pivot portion. The pivot shaft is pivoted to the pivot hole, and the first pivot portion and the second pivot portion are configured to be pivoted to the same slide groove.

Abstract: A solid-state battery module including a substrate; a solid-state battery on the substrate; and a wireless power supply circuit including a capacitor, in which at least the capacitor and the solid-state battery are on a same main surface side of the substrate.

Abstract: A method including configuring a user device to receive encrypted content and an encrypted assigned private key associated with the encrypted content; configuring the user device to decrypt the encrypted assigned private key based on utilizing a master key to determine a decrypted assigned private key; configuring the user device to determine a combination decryption key based on utilizing the decrypted assigned private key and an access public key associated with the encrypted content; configuring the user device to decrypt an encrypted access private key associated with the access public key to determine a decrypted access private key; and configuring the user device to decrypt the encrypted content based on utilizing the decrypted access private key is disclosed. Various other aspects are contemplated.

Abstract: Apparatus and methods for prime field modular reduction are described. As an example, a custom modular reduction digital circuit for reducing an n-bit integer based on a modulus, where the modulus comprises a k-bit integer for use with a cryptographic algorithm, is described. The custom modular reduction digital circuit includes a first circuit to generate at least two partial results by processing: (1) k lower order significant bits of the n-bit integer and (2) at least a subset of bits for congruent representations corresponding to any n-k higher order bits of the n-bit integer that are higher in significance than the most significant bit of the k-bit integer. The custom modular reduction digital circuit further includes a second circuit to process the at least two partial results, output by the first circuit, to generate a reduced version of the n-bit integer for use with the cryptographic algorithm.

Abstract: An encrypted message comprising a DNS request may be received from a client device. The DNS request may be decrypted to determine an IP address and a port associated with the client device. A security token may be determined based on the IP address and the port. A message comprising an indication of the DNS request and the security token may be sent to a DNS server. A reply comprising a payload and the security token may be received from the DNS server. Based on the security token, an indication of the payload of the reply may be sent to the client device.

Abstract: An anti-twist structure of a voice coil motor includes a base, a lens housing, a first elastic sheet, a second elastic sheet, a magnet, and a yoke member. The lens housing has first margin wall and a second margin wall, and a first protrusion extends from the first margin wall. The height of the second protrusion is lower than the height of the first protrusion. The yoke member has a first wall, a connection wall, a second wall, and a side wall. The first wall is disposed above the first protrusion, and the second wall is disposed above the second protrusion. The lens housing has a deflectable angle relative to a horizontal reference line. When the lens housing deflects to a maximum value of the deflectable angle, the first margin wall abuts against the second wall and/or the first protrusion abuts against the first wall.

Abstract: Improved frame image quality in a solid-state imaging element that processes the frame using metadata is disclosed. In one example, each of a plurality of pixels is provided with a sample-and-hold circuit that holds a pixel signal. A signal processing unit generates a first digital signal by performing signal processing on each of the held pixel signals, and generates a second digital signal by performing the signal processing on each of the held pixel signals. A metadata extraction unit extracts predetermined metadata from the first digital signal.

Abstract: A mobile phone and a wireless earphone for sonic ranging. The mobile phone performs an acoustic response test on the wireless earphone. The mobile phone generates a first audio sequence at a first time slot. The wireless earphone recognizes the first audio sequence to generate a second audio sequence. When the mobile phone recognizes the second audio sequence, the mobile phone estimates a length of elapsed time according to the time difference between a current time slot and the first time slot. When the mobile phone obtains the length of elapsed time, a distance between the wireless earphone and the mobile phone may be determined according to a delay compensation parameter and the length of elapsed time. Various potential applications can be implemented based on the invention without the needs for additional hardware circuits in the mobile phone.

Abstract: Described is a loudspeaker (10) comprising: a radiator (1), movable along a longitudinal axis (X) for generating pressure waves; a basket (2), surrounding the radiator (1), so as to form a liner (C) between the radiator (1) and the basket (2), the liner (C) being delimited by an inside surface (201) of the basket (2) and an outside surface (101) of the radiator (1); a magnetic circuit (3), defining a path for the circulation of a magnetic field and including a stationary magnetic element (301), connected to the basket (2), and a movable magnetic element (302), connected to the radiator (1) and movable under the action of the magnetic field for moving the radiator (1) in response to an electrical signal to be transduced; a ring (4) made of elastomeric material, coaxial with the longitudinal axis (X) and positioned inside the liner (C), in contact with the outside surface (101) of the radiator (1) and the inside surface (201) of the basket (2) so as to roll on them, moving longitudinally in response to a relati

Abstract: An information generation method includes: obtaining first sound data and first position information, the first sound data indicating a first sound, the first position information indicating a position of an object in the virtual space; and generating, from the obtained first sound data and first position information, first object audio information including (i) information related to the object that reproduces the first sound generated at a position of a listener due to the object, and (ii) the first position information.