Abstract: Disclosed is a nitrogen-containing heterocyclic compound, pharmaceutical compositions thereof and use thereof. The present disclosure provides a nitrogen-containing heterocyclic compound represented by formula I, a pharmaceutically acceptable salt thereof, a solvate thereof, a solvate of pharmaceutically acceptable salt thereof, a crystal thereof, a stereoisomer thereof, a tautomer thereof or an isotopically labeled compound thereof. The nitrogen-containing heterocyclic compound represented by formula I is expected to treat and/or prevent various PI3K-meditated diseases.

Abstract: A method for manufacturing a semiconductor structure includes: a base provided with a contact hole is provided; an initial contact structure including a first diffusion barrier layer, a conductive layer and a second diffusion barrier layer stacked onto one another is formed on the base, the first diffusion barrier layer conformably covering the contact hole and covering part of a top surface of the base, the conductive layer covering first diffusion barrier layer and being filled in unoccupied space in the contact hole, the second diffusion barrier layer covering a side of the conductive layer away from first diffusion barrier layer, the initial contact structure outside the contact hole being provided with a groove exposing side walls of conductive layer and second diffusion barrier layer; a third diffusion barrier layer is formed on a side wall of initial contact structure exposed by the groove to obtain a target contact structure.

Abstract: Provided are antenna arrays based on three-dimensional special-shaped wave-absorbing structures by the disclosure, and includes an antenna array fixing plate and a plurality of antenna array units, where the antenna array units are sequentially fixed on the antenna array fixing plate; each of the plurality of antenna array units includes an antenna transmitting channel, two antenna receiving channels and a pair of three-dimensional special-shaped wave-absorbing structures; the antenna transmitting channel is used for transmitting antenna signals; the antenna receiving channels are used for receiving the antenna signals; and the three-dimensional special-shaped wave-absorbing structures are used for isolating antenna signals of antenna transmitting channels of other antenna array units.

Abstract: The present disclosure discloses an Internet-of-Things-oriented machine learning container image download system and a method. The Internet-of-Things-oriented machine learning container image download system includes a master node and a plurality of computing nodes; the master node is configured to store and convert a machine learning model, and build a machine learning container image from the format-converted machine learning model; and issue an image download instruction to each of the computing nodes after image information of the machine learning container image is completely built; and each of the computing nodes is configured to receive the image download instruction, download the machine learning container image, and start a machine learning container; and receive data collected by Internet-of-Things devices, and return a data processing result to the Internet-of-Things devices.

Abstract: An implant delivery handle, an implant system, a delivery system and a method of use thereof are disclosed. Transmission systems in the implant delivery handle each include a lead screw, an inner tube coupling member, an outer gear and an inner gear. The outer gear rotatably engages the inner gear and is configured to drive rotation of the inner gear. The lead screw is coupled to a first inner tube (11) or a second inner tube (12) through the inner tube coupling member. The lead screw also engages the inner gear and rotates therewith to cause axial movement of the first inner tube (11) or the second inner tube (12). A transmission ratio of the outer gear to the inner gear is greater than 1.

Abstract: An implant delivery handle (2), an implant system, a delivery system and method for operating thereof are disclosed. A ratchet assembly (340) in the implant delivery handle (2) includes a cam (3461), a ratchet wheel (342) and two ratchet pawls (344, 345). The ratchet wheel (342) is secured to a synchronous conveying device (320) and is configured to cooperate with the two ratchet pawls (344, 345) to control an axial movement and an axial movement direction of an outer (120) or an inner (110) tube so as to enable a safe self-locking, and transmission and guiding of the outer (120) or inner tube (110). A first end of each ratchet pawl (344, 345) is disposed rotatably on one side of the cam (3461) and a second end of each ratchet pawl (344, 345) is disposed in the vicinity of the ratchet wheel (342), and the ratchet pawls are configured to control a rotation and a rotational direction of the ratchet wheel (342).

Abstract: A control handle (1), a control wire (21) and an implant (3) delivery device are disclosed. The control handle (1) includes a basic part (11) and a rotary part (12). The basic part (11) is configured to connect a flexible catheter (22) in a catheter assembly (2) and has an axial direction that is as same as an axial direction of the flexible catheter (22). The rotary part (12) is rotatably coupled to the basic part (11) along a radial direction of the basic part (11), and an rotational axis of the rotary part (12) is not coplanar with an axis of the basic part (11). The rotary part (12) is fixedly coupled to a proximal end of the control wire (21) and is configured to rotate to cause the control wire (21) to be wound thereon. The rotational axis of the rotary part (12) is not coplanar with the axis of the basic part (11), as a result of rotation of the rotary part (12), the control wire (21) is wound thereon, enabling bending control.

Abstract: The present invention relates to a carbon-assisted solid oxide electrolysis cell comprising: a cathode, an electrolyte, an anode, and an anode chamber set in the order. The cathode is supplied with water as an oxidant and the reduction reaction occurs. The anode chamber includes carbon fuel and CO2 absorber, supplied with the water as in situ gasification agent, wherein the water assists the gasification of the carbon fuel to generate CO and H2. The O2? ions generated by cathode are transported to the anode through the electrolyte, and react with CO and H2 generated in the anode chamber as oxidant. The CO produced by the carbon gasification reaction partly reacts with water to generate CO2 and H2, while the CO2 absorber promotes the production of H2 by absorbing the CO2 produced by the water gas shift reaction. The present invention can control the internal gas composition of the CA-SOEC anode effectively, improving the performance of the carbon-assisted electrolysis cell and reducing energy consumption.