Abstract: A new fluorescence detection method called pyrophosphorolysis activated fluorescence was developed to measure PAP amplification of nucleic acid. A fluorophore-quencher dual-attached blocked primer was used for PAP which has a fluorophore attached to a nucleotide in the internal region or at the 5? end and a quencher attached to a blocked nucleotide at the 3? end. Multiple fluorophore-quencher dual-labeled blocked primers were also used for multiplex PAP, which are attached with different fluorophores to distinguish multiple templates in a reaction.

Abstract: A preparation method of bimetallic catalysts based on anthracene frameworks and use thereof in olefin polymerization is reported. Anthrecene frameworks were introduced, heat resistance of the catalysts is improved, and by changing central metals and configurations of the frameworks, steric and electronic effects of the metal catalysts of this model can be adjusted and controlled conveniently, and polyolefin polymer materials of different structures and different properties can be prepared, the bimetallic catalyst can be used in ethylene homopolymerization for preparation of high density polyethylene, ethylene/1-octene copolymerization for preparation of polyolefin elastomers and ethylene/norbornene copolymerization for preparation of cycloolefin copolymers.

Abstract: An electronic device may have a camera. The camera may capture still and moving images. A camera status indicator may be included in the electronic device. The camera status indicator may emit light to indicate when the camera is in use capturing video or other images. The camera status indicator may have multiple light-emitting devices such as light-emitting diodes or lasers. The light-emitting devices may have different colors. Clear encapsulant may cover the light-emitting devices. A white polymer wall or other light recycling structure may run along an outer peripheral edge of the encapsulant. A light diffusing coating layer may coat an outer surface of the clear encapsulant. Light reflections from the status indicator may be reduced in captured images.

Abstract: Movable thick dehydration device and method for eluent sediment from medium- and low-concentration ammonia nitrogen are provided. The device integrates the existing eluent preparing mechanism, a transferring mechanism, pumping mechanisms, a transport vehicle, an automatic controlling system, an eluent collecting pool, primary and secondary sedimentation pools, and primary and secondary processing units. After post-treatment and recovery of eluent waste from rare earth mines, ammonia nitrogen and rare earth heavy metals in the eluent of rare earth mines can be recovered and disposed, and 90% of ammonia nitrogen and over 95% of rare earth in the eluent can be recycled. The device is movable and automated, and therefore suitable for environmental treatment of closed rare earth mines with residual ammonia nitrogen. Meanwhile, it is beneficial to reduce investment costs of capital construction, disposal site restoration of environmental treatment of rare earth mines with residual ammonia nitrogen.

Abstract: A display may have a pixel array such as a liquid crystal pixel array. The pixel array may be illuminated with backlight illumination from a direct-lit backlight unit. The backlight unit may include an array of light-emitting diodes on a printed circuit board. The backlight unit may include first, second, and third light spreading layers formed over the array of light-emitting diodes. A color conversion layer may be formed over the first, second, and third light spreading layers. First and second brightness enhancement films may be formed over the color conversion layer.

Abstract: A display may have a pixel array such as a liquid crystal pixel array. The pixel array may be illuminated with backlight illumination from a direct-lit backlight unit. The backlight unit may include an array of light-emitting diodes on a printed circuit board. The backlight unit may include first, second, and third light spreading layers formed over the array of light-emitting diodes. A color conversion layer may be formed over the first, second, and third light spreading layers. First and second brightness enhancement films may be formed over the color conversion layer.

Abstract: The present invention discloses a communication method and a related device. The method includes: determining, by a first device, measurement user equipment UE; determining, by the first device, a moving speed of a train based on the measurement UE; and sending, by the first device, first signaling to a second device by using an inter-station interface, where the first signaling is used to indicate the second device to disable an energy-saving state before a first moment or at the first moment, the first moment is obtained based on the moving speed of the train, and the inter-station interface includes an XN interface or an X2 interface. The second device may disable the energy-saving state before the first moment or at the first moment, so that when the train arrives at the second device, the second device can meet requirements of a mobile user on the train.

Abstract: A control device and a control method for an induction motor. The control device comprises: a magnetizing current adjusting unit used for calculating a magnetizing voltage instruction; a torque current adjusting unit used for calculating a torque voltage instruction; a flux linkage instruction angle generating unit calculating a flux linkage instruction angle according to a lower limit ?1th of a preset stator frequency, a stator frequency ?1, and a flux linkage estimation angle; and a motor stator voltage instruction calculating unit calculating, according to the magnetizing voltage instruction, the torque voltage instruction, and the flux linkage instruction angle, a stator voltage instruction for controlling a stator of the motor. The control system can be run outside an unstable area, and the stability of control by the control device is improved.

Abstract: A superhigh torsional strength, metallic and airtight drillrod coupler including an externally threaded coupler having a radially outward outer shoulder at an end thereof in an axial direction, an inner end face at the other end thereof in the axial direction, and a first sealing face being provided in sequence in the axial direction of the externally threaded coupler. The coupler further includes an internally threaded coupler to be threadedly connected to the externally threaded coupler, the internally threaded coupler having a radially inward inner shoulder at an end thereof in an axial direction, and an outer end face at the other end thereof in the axial direction, with a second sealing face. Further, the first sealing face and the second sealing face are both sloped faces, and are in an interference-fit sealed connection with each other.

Abstract: Provided are a phosphazene compound, a method for preparing a phosphazene compound and a method for producing a polymer with a phosphazene compound as a catalyst. The compound of formula (I) or a solvate thereof, where A is a six- or eight-membered ring consisting of repeated P?N, and B is at least one of unsubstituted or substituted C1-6 alkylamino, unsubstituted or substituted C1-6 cycloalkylamino, unsubstituted or substituted arylamino, or halogen, and B is attached to A at phosphorus in P?N, where R is unsubstituted or substituted C1-6 alkyl, unsubstituted or substituted C1-6 cycloalkyl, unsubstituted or substituted aryl, or unsubstituted or substituted benzyl, or R forms C1-6 heterocycloalkyl together with N attached thereto.

Abstract: An electronic device may include a display having a monolithic array of light-emitting diodes mounted to a surface of a substrate layer. The diodes may include contact pads. Driver circuitry may independently drive each of the diodes in the array using drive signals. The driver circuitry may be formed on a driver integrated circuit. Bond pads may be formed on a surface of the integrated circuit. Copper pillars may be grown on the bond pads. In another suitable arrangement, the driver circuitry may be formed on a driver printed circuit board coupled to an interposer by a flexible printed circuit. The interposer may include bond pads and copper pillars grown on the bond pads. The contact pads on each of the diodes may be simultaneously bonded to the copper pillars. A surface of the substrate layer may be patterned to form light redirecting elements if desired.

Abstract: The present invention discloses a method for manufacturing a superior 13Cr tool coupler, which method comprises the following steps: manufacturing a blank; forging the blank; heating the forged blank to 600-700° C. for a stress-relief annealing; quenching; and tempering. The present technical solution can produce a superior 13Cr tool coupler which achieves a mechanic feature of 110 ksi.

Abstract: A control device and a control method for an induction motor. The control device comprises: a magnetizing current adjusting unit used for calculating a magnetizing voltage instruction; a torque current adjusting unit used for calculating a torque voltage instruction; a flux linkage instruction angle generating unit calculating a flux linkage instruction angle according to a lower limit ?1th of a preset stator frequency, a stator frequency ?1, and a flux linkage estimation angle; and a motor stator voltage instruction calculating unit calculating, according to the magnetizing voltage instruction, the torque voltage instruction, and the flux linkage instruction angle, a stator voltage instruction for controlling a stator of the motor. The control system can be run outside an unstable area, and the stability of control by the control device is improved.

Abstract: Provided are a phosphazene compound, a method for preparing a phosphazene compound and a method for producing a polymer with a phosphazene compound as a catalyst. The compound of formula (I) or a solvate thereof, where A is a six- or eight-membered ring consisting of repeated ?P?N?, and B is at least one of unsubstituted or substituted C1-6 alkylamino, unsubstituted or substituted C1-6 cycloalkylamino, unsubstituted or substituted arylamino, or halogen, and B is attached to A at phosphorus in ?P?N?, where R is unsubstituted or substituted C1-6 alkyl, unsubstituted or substituted C1-6 cycloalkyl, unsubstituted or substituted aryl, or unsubstituted or substituted benzyl, or R forms C1-6 heterocycloalkyl together with N attached thereto.

Abstract: A floor control apparatus and method, the method including receiving, by a media resource function entity, a first floor application message sent by UE, generating, by the media resource function entity, a second floor application message according to the first floor application message, sending, by the media resource function entity, the second floor application message to a mission-critical push-to-talk (MCPTT) server, receiving, by the media resource function entity, a first floor grant message that is in response to the second floor application message and that is sent by the MCPTT server, generating, by the media resource function entity, a second floor grant message according to the first floor grant message, and sending, by the media resource function entity, the second floor grant message to the UE.

Abstract: A floor control method and apparatus are disclosed. In an embodiment a floor control method includes receiving, by a server over Long Term Evolution network, a first message sent by user equipment (UE), wherein the first message comprises a parameter indicating that an event type is a floor request, generating, by the server, a second message according to a floor control policy and the first message, wherein the second message comprises a parameter indicating that an event type is floor granted and sending, by the server, the second message to the UE, wherein the second message is used to instruct the UE to notify a user of the UE that a floor is granted.

Abstract: A floor control method and apparatus are disclosed. In an embodiment a floor control method includes receiving, by a server over Long Term Evolution network, a first message sent by user equipment (UE), wherein the first message comprises a parameter indicating that an event type is a floor request, generating, by the server, a second message according to a floor control policy and the first message, wherein the second message comprises a parameter indicating that an event type is floor granted and sending, by the server, the second message to the UE, wherein the second message is used to instruct the UE to notify a user of the UE that a floor is granted.

Abstract: An embodiment floor control method includes receiving, by a mission-critical push-to-talk (MCPTT) server over an Long Term Evolution network, a first message sent by a user equipment (UE), where the first message includes an identifier of a group to which a talker corresponding to the UE belongs and a parameter indicating that an event type is a floor request, generating, by the MCPTT server, a second message according to the floor control policy and the first message, and sending the second message to the UE. The method includes receiving a response message of the second message sent by the UE, generating a first instruction message according to the response message of the second message, where the first instruction message is used to instruct a media resource function entity to perform uplink voice switching on a media plane, and sending the first instruction message to the media resource function entity.

Abstract: A control signaling transmission method in a mission critical push to talk (MCPTT) architecture and a related device, where the method includes establishing, by a policy and charging rule function (PCRF) entity, a connection channel between the PCRF entity and an MCPTT application server, and transmitting, by the PCRF entity, control signaling for policy and charging to the MCPTT application server using the connection channel. Hence, the control signaling for policy and charging can be transmitted between the PCRF and the MCPTT application server, and the transmission efficiency of the control signaling for policy and charging can be improved.

Abstract: An embodiment floor control method includes receiving, by a mission-critical push-to-talk (MCPTT) server over an Long Term Evolution network, a first message sent by a user equipment (UE), where the first message includes an identifier of a group to which a talker corresponding to the UE belongs and a parameter indicating that an event type is a floor request, generating, by the MCPTT server, a second message according to the floor control policy and the first message, and sending the second message to the UE. The method includes receiving a response message of the second message sent by the UE, generating a first instruction message according to the response message of the second message, where the first instruction message is used to instruct a media resource function entity to perform uplink voice switching on a media plane, and sending the first instruction message to the media resource function entity.