Abstract: A one-shot neural architecture search method referred to as MergeNAS by merging different types of convolutions into a single operation. This mergence approach reduces the search cost to roughly half a GPU-day as well as alleviates the over-fitting problem caused by a traditional differentiable architecture search (DARTS) approach by reducing the number of redundant parameters.

Abstract: A seafloor observation network-based subsurface buoy device with real-time power supplying and high-speed data transmitting is provided. The subsurface buoy device includes a seabed base deployed on the seafloor and a vertical mooring system connected to a bottom surface of the seabed base to extend to the sea surface. The seabed base serves as a gravity anchor to enable the subsurface buoy device to be positioned stably at a layout site, and is further used for obtaining power supply of the subsurface buoy device from a junction box of a seafloor observation network. The seabed base also sends the management and control commands from the junction box to the vertical mooring system, and transmits the data collected by the vertical mooring system back to the junction box in real time.

Abstract: The present invention relates to the field of fluid heat transfer, and discloses a heat transfer enhancement pipe as well as a cracking furnace and an atmospheric and vacuum heating furnace including the same. The heat transfer enhancement pipe (1) includes a pipe body (10) of tubular shape having an inlet (100) for entering of a fluid and an outlet (101) for said fluid to flow out; internal wall of the pipe body (10) is provided with a fin (11) protruding towards interior of the pipe body (10), wherein the fin (11) has one or more fin sections extending spirally in the axial direction of the pipe body (10), and each fin section has a first end surface facing the inlet (100) and a second end surface facing the outlet (101), at least one of the first end surface and the second end surface of at least one of the rib sections is formed as a transition surface along spirally extending direction.

Abstract: An intelligent emergency power supply system including a power line, a signal communication module, an emergency power module and at least one luminaire, the luminaire is powered by the emergency power module in a state when the live line and the null line are not regularly powered, and the luminaire is capable of extracting the digital signals loaded on the live line and/or the null line and adjusting its own working mode according to control commands corresponding to the digital signals.

Abstract: The present application provides a metallocene compound, and a preparation method and application thereof. The metallocene compound of the present application includes a structure as shown in Formula a, where Ar is selected from a substituted or unsubstituted C6-C30 aryl; Cp? is selected from a substituted or unsubstituted cyclopentadienyl, indenyl, or fluorenyl; X is at least one of halogen, substituted or unsubstituted C1-C30 alkyl, alkoxy, substituted or unsubstituted C2-C30 dialkylamino, alkenyl, and substituted or unsubstituted C6-C30 aryl; and M is a transition metal element. The metallocene compound is suitable for catalyzing a C6-C30 long straight chain ?-olefin raw material and also a mixed long branched chain non-terminal olefin raw material, and may obtain a polymerization product with a target molecular weight according to demand.

Abstract: A reaction chamber lining including an annular side wall and a flange arranged on an upper portion of the side wall. An end face of the flange extends from the side wall in a radial direction, an outer edge of the flange extends in the radial direction to form fixing flanging parts, and a hole is in each of the fixing flanging parts. The side wall includes a rectangular slot, and a position of the rectangular slot corresponds to a position of a robotic arm access hole in a side wall of a reaction chamber. The side wall includes through holes and honeycomb-shaped apertures. A face joined to the bottom of the side wall includes a disc extending inwards in the radial direction, an extending end of the disc is fitted with an outer edge of an electrode assembly. A plurality of circles of slotted holes are in the disc.

Abstract: Various example embodiments relate to methods and apparatus supporting semi-persistent scheduling enhancement. A terminal device in a communication network may comprise at least one processor and at least one memory having computer program code stored thereon. The at least one memory and the computer program code may be configured to, with the at least one processor, cause the terminal device to receive from a network device in the communication network, allocation of first resources for a traffic flow of a service provided via the communication network, receive on the first resources a message indicating second resources allocated for transmission of at least one packet in the traffic flow of the service, and receive on the second resources, the at least one packet in accordance with the message.

Abstract: Provided in the embodiments of the present disclosure is an assembled screen unit, including a display panel, a frame, a sound-production stimulation unit, and a supporting structure; the supporting structure is configured to support the sound-production stimulation unit; the back side of the display panel includes a central region and an edge region; the sound-production stimulation unit is in contact with the central region; the frame is configured to support the display panel; the frame includes a first sub-portion and a second sub-portion; and a first vibration isolation portion is provided between the first sub-portion and the display panel; a second vibration isolation portion is provided between the second sub-portion and the display panel; and the first vibration isolation portion has a thickness less than the second vibration isolation portion.

Abstract: An auxiliary cleaning device for a disabled person, comprising a movable support (1), a leg lifting device (2), and a cleaning device (3). The distances between a cleaning mechanism (33) and a part to be cleaned of a user in a first direction, a second direction, and a third direction are automatically adjusted, such that the cleaning mechanism (33) is driven by a mechanical arm mechanism (32) to move to a designated position near said part, so as to perform an operation such as cleaning of said part.

Abstract: A display panel includes at least two first display units, the first display unit includes at least one first sub-display unit, the first sub-display unit includes a first sub-display panel and a vibration device connected with the first sub-display panel, the at least two first display units are arranged along a first direction to form a display unit row, in one of the display unit rows, the distance L1 of sound channel centers of two adjacent first display units in the first direction is: 2 × W × tan ? ( ? 2 ) wherein, W is the vertical distance between the sound receiving position and a side surface of the display panel facing the sound receiving position; ? is an angle between linear distances from the sound channel centers of two adjacent first display units to the sound receiving position respectively in a display unit row, and the ? is greater than 2.4 degrees.

Abstract: The present disclosure provides a liquid crystal grating and a driving method therefor, and a three-dimensional (3D) display device. The liquid crystal grating includes: a first substrate; a second substrate, where the second substrate and the first substrate are oppositely arranged; a liquid crystal layer, where the liquid crystal layer is located between the first substrate and the second substrate; and a first transparent grating electrode layer located at a side, facing the liquid crystal layer, of the first substrate; where the first transparent grating electrode layer includes a plurality of first strip-shaped electrodes extending in a first direction and arranged at intervals in a second direction, and each of at least part of the first strip-shaped electrodes is divided in the first direction into at least two first strip-shaped sub-electrodes arranged independently.

Abstract: Disclosed are an ultrasonic probe, an ultrasonic apparatus and a detection method. The ultrasonic probe includes: multiple transmitting transducers; multiple receiving transducers, each receiving transducer includes a receiving component and an ultrasonic control circuit electrically connected with the receiving component, and the multiple receiving components are distributed in an array; and multiple scanning signal lines and multiple readout signal lines, each of the scanning signal lines is located in a row gap between adjacent receiving components, each of the readout signal lines is located in a column gap between adjacent receiving components, multiple receiving components in the same row are electrically connected with the same scanning signal line by means of corresponding ultrasonic control circuits, and multiple receiving components in the same column are electrically connected with the same readout signal line by means of corresponding ultrasonic control circuits.

Abstract: The present disclosure provides a microphone and a display panel. The microphone includes a first substrate, a cavity disposed on a side of the first substrate, and multiple resonant units disposed on the first substrate and located in the cavity, a resonant unit is configured to generate a frequency response in response to a particular acoustic signal, the frequency response of the multiple resonant units at least includes a resonant frequency response segment, and resonant frequency response segments of the multiple resonant units are at least partially different.

Abstract: Provides are an ultrasonic transducer, a fabrication method thereof and an electronic device. The ultrasonic transducer includes: an array substrate having a groove, a bottom electrode and an insulation layer, wherein an orthographic projection of the groove on the array substrate is within an orthographic projection of the bottom electrode on the array substrate, and the insulation layer covers the bottom electrode; and an opposite substrate, the opposite substrate and the array substrate are oppositely arranged and are attached to each other, the opposite substrate and the array substrate form a cavity in the groove, the opposite substrate has a top electrode and a vibrating diaphragm layer which are arranged in stack, and an orthographic projection of the top electrode on the array substrate is within the orthographic projection of the bottom electrode on the array substrate.

Abstract: The present invention relates to efficient synthetic processes useful in the preparation of Compound A, a BTK inhibitor of Formula (I): or a pharmaceutically acceptable salt thereof, including the preparation of intermediates used to make Compound A or a pharmaceutically acceptable salt thereof.

Abstract: An example method of beacon probing in a computing system includes: sending, by cross-host beacon probing (CHBP) software executing in a first host of the computing system, a first beacon probe from a first network interface controller (NIC) of the first host to NICs on a same layer 2 domain as the first NIC, the NICs including a second NIC of the first host and cross-host NICs of at least one host other than the first host; receiving, at the CHBP software through the first NIC, acknowledgements (ACKs) to the first beacon probe from the cross-host NICs; and determining, in response to the first beacon probe, connectivity statuses of the first NIC and the second NIC by the CHBP software based on the ACKs and on whether the second NIC receives the first beacon probe.

Abstract: The present invention discloses a choke combination device for gas production. wherein a first boss is arranged on an inner wall of the choke sleeve, a first through hole is formed in the middle of the first boss, a second boss is arranged on an outer peripheral side surface of the choke; the plug is provided with a stepped hole; outer walls of the first cylinder and the second cylinder are in sliding connection with a key groove in the inner wall of the choke sleeve, inner walls of the first cylinder and the second cylinder are in threaded connection with the first shaft section and the second shaft section respectively. The device is simple to replace and operate, which can save the operating time of replacement operation.

Abstract: Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media of the correction of reference clock systematic errors of the UE. The method comprises generating, at a first device, reference time information comprising a first local timestamp of the first device at a boundary of a system frame number; and transmitting the reference time information to a second device for time synchronization between the first device and the second device. In this way, errors on the absolute time delivery to the UE that are not visible on the air interface can be captured and the accuracy of the time synchronization between the UE and the gNB can be improved.

Abstract: The present disclosure provides a method and system for automatically monitoring and identifying water seepage of a segment joint of a subway shield tunnel. The method includes: 1): grinding a water-sensitive material and then mixing with a waterproof material to form a color-developing agent; 2): coating the color-developing agent on two sides extending from a construction joint and/or a deformation joint of a tunnel lining as a center line, to form a color-developing layer; and 3) obtaining a color development feature of the color-developing layer, and identifying water seepage based on the color development feature. According to the present disclosure, a water seepage amount can be determined based on the color development feature of the color-developing layer around the construction joint and/or the deformation joint of the tunnel lining, which facilitates monitoring of the water seepage amount around the construction joint and/or the deformation joint.