Abstract: The present application relates to an installation method for a closure joint of an immersed tunnel, and belongs to the technical field of closure joints; the installation method comprises the steps: establishing a first coordinate system; distributing feature points; installing the N+2 tube coupling; installing an N+1 tube coupling and pushing out a push-out segment; wherein, the first coordinate system is established at a tail end of an N+3 tube coupling, breakthrough points N+1S and N+1W are distributed at a head end and a tail end of a N+1 tube coupling respectively, breakthrough points DS and DW are distributed at a push-out segment, and breakthrough points N+2S and N+2W are distributed at a head end and a tail end of a N+2 tube coupling respectively; and coordinates of the breakthrough points DS, DW, N+1S, N+1W, N+2S, N+2W in the first coordinate system are calculated respectively; the installation method can improve the installation accuracy of the closure joint and is easy to operate.

Abstract: The present disclosure discloses a speaker module including a housing and a speaker unit received in the housing, comprising: a frame, a magnet system, including: a yoke fixed to the frame; and a first magnet fixed to the yoke; a vibration system mounted on the frame, including: a diaphragm fixed to the frame; and a coil fixed to the diaphragm and inserted into the magnetic gap; a connector surrounding the yoke and configured to connect the yoke with frame; wherein the housing includes an upper cover enclosing a front cavity with the diaphragm, a bottom cover fixed to the yoke, and a side wall enclosing the receiving space with the upper cover and the bottom cover; a surface of the yoke away from the first magnet is fixed to the bottom cover; the speaker module in the present disclosure has high sealability.

Abstract: A method for increasing production and injection of a reservoir coupled with flue gas desulfurization and denitrification includes a flue gas desulfurization and denitrification process and a reservoir acid liquor acidizing process, where the flue gas desulfurization and denitrification process is mixing a desulfurizing and denitrating agent with H2O2 solution uniformly to prepare a solution, and spraying it into a flue gas in an opposite direction of flue gas flow, or mixing O3 into a flue gas in an opposite direction of flue gas flow, and simultaneously spraying a desulfurizing and denitrating agent solution. When the pH of the solution system reaches 6 to 6.5, the reacted waste liquor is collected as an acid liquor. The process can control atmospheric pollution, improve the economic efficiency of flue gas treatment, and can prepare acid liquor cheaply.

Abstract: The present invention provides a speaker box including a housing having a receiving room and a speaker received in the receiving room. The speaker includes a frame, a diaphragm and a magnetic circuit system supported on the frame. The speaker separates the receiving room into a front cavity for transmitting a sound and a rear cavity. The speaker has a back cavity, and the back cavity is communicated with the rear cavity. The housing includes an outer surface and an inner surface. The housing includes a leakage hole communicating the rear cavity and an outside. The speaker box further includes an air-permeable mesh covering the leakage hole. A size of the leakage hole located on the outer surface is larger than the size of the leakage hole located on the inner surface. The speaker box of present invention can effectively avoid the problem of amplitude deviation during work.

Abstract: A coaxial speaker is disclosed. The coaxial speaker includes two sounding units and a magnetic circuit system including a lower plate, two first magnets arranged on the lower plate and spaced along a long axis, a first yoke arranged on the two first magnets, and a second magnet and two third magnets arranged on the first yoke and between the two first magnets. The two third magnets are arranged on both sides of the second magnet along a short axis. The lower plate has a through hole arranged between the two first magnets and extends two side walls along the long axis. The two side walls together with the two first magnets and the two third magnets form a first gap. The second magnet and the two third magnets form a second gap. The coaxial speaker reduces the product height and has a compact overall structure.

Abstract: A speaker is disclosed. The speaker includes a vibration system, a magnetic circuit system, and a frame for fixing the vibration system and the magnetic circuit system. The vibration system includes a diaphragm and a voice coil driving the diaphragm for vibrating and sounding. The diaphragm includes a dome and a suspension surrounding the dome, and the dome and the suspension are integrally formed. The dome is provided with a positioning through hole for ensuring the concentricity of the dome and the suspension when integrally forming the dome and the suspension. The speaker ensures the concentricity of the dome and the suspension and improves the reliability of the diaphragm.

Abstract: Provided are a method and a system for randomly generating a porous medium model. The method includes following steps: setting a porosity, resolution and a size of a pre-generated porous medium model; initializing the porous medium model and generating position information of particles; extracting particle profile edges; obtaining filled particles; carrying out a collision detection on the filled particles and preset particles, and determining effectiveness of a particle generation position; presetting a cyclic pop-up condition, and if a judgment result meets the cyclic pop-up condition, continuing; otherwise, updating Fourier parameters; adding a particle configuration meeting the cyclic pop-up condition to a model generation area, and storing parameters; determining whether the generated model meets preset generation requirements, and if so, outputting a porous medium model.

Abstract: A memory device is provided. The memory device comprises a first plane and a second plane. The memory device further comprises a control circuit coupled to the first plane and the second plane. The control circuit is configured to: simultaneously initiate programming the first plane and the second plane; and in response to the first plane being successfully programmed, the second plane being unsuccessfully programmed, and a programming pulse count of the second plane being less than a predetermined programming pulse count value, keep programming the second plane and disable the first plane.

Abstract: The hollow body molding aid includes a body, a connector, a first profiling assembly, a second profiling assembly, and a positioning mechanism. The connector is fixedly connected to the body. The first profiling assembly is fixedly disposed on one side of the body and is configured to position one half of a reinforced housing. The second profiling assembly is fixedly disposed on the other side of the body and is configured to position the other half of the reinforced housing. The positioning mechanism is disposed on the first profiling assembly and the second profiling assembly. The reinforced housing can be positioned, thus guaranteeing molding quality of the reinforced housing and blanks. In addition, the reinforced housing can be accurately positioned in a cavity of a mold through a manipulator, without the need to use a plurality of air cylinders for step-by-step driving.

Abstract: A communication system having to an open radio access network architecture, the communication system includes a number (K) of user equipments configured to exchange messages through the communication system, the communication system comprising one or more radio unit and a distributed unit, each radio unit being connected to the distributed unit through a fronthaul link having a given capacity. The communication system comprises a coordination system being configured to coordinate the exchanges between the radio units of the system and the distributed unit, in response to a signal received by the radio units from a user equipment.

Abstract: A method, an apparatus, an electronic device for estimating a pose of an object include determining a confidence of a depth image of an object based on a color image and the depth image of the object, estimating a pose of the object based on a three-dimensional (3D) keypoint in response to the depth image being reliable, and estimating the pose of the object based on a two-dimensional (2D) keypoint in response to the depth image being unreliable.

Abstract: An apparatus to verify firmware in a computing system, comprising a non-volatile memory, including firmware memory to store agent firmware associated with each of a plurality of interconnect protocol (IP) agents and version memory to store security version numbers (SVNs) included in the agent firmware, a security controller comprising verifier logic to verify an integrity of the version memory by applying a hash algorithm to contents of the version memory to generate a SVN hash, and a trusted platform module (TPM) to store the SVN hash.

Abstract: The present invention is directed to lidar systems and methods thereof. In a specific embodiment, the present invention provides a lidar system that includes a SPAD sensor includes n SPAD pixel rows. Based on the location of a target object on the SPAD sensor, m rows of n SPAD pixels row are selected based at least on the histograms generated using the n SPAD pixel rows. There are other embodiments as well.

Abstract: A method may be applied to a terminal device that supports a first communication system and a second communication system. The first communication system corresponds to a first user identity, and the second communication system corresponds to a second user identity. The method includes: a terminal device receiving a first message in a first communication system, where the first message indicates to perform DAPS handover between a source cell and a target cell in the first communication system. In response to determining that a capability available for the first communication system cannot support the DAPS handover, the terminal device suspends communication with the source cell in the first communication system, and is handed over to the target cell in the first communication system.

Abstract: Skid-mounted flue gas injection equipment and method with an adjustable CO2 enrichment degree are disclosed, and belongs to the technical field of experimental devices for oil and gas field development engineering. As for the equipment of the present disclosure, it is of a skid-mounted structure, is compact in structure, modular, easy to install, and highly mobile, can be applied to remote regions of overland deserts and narrow spaces on offshore platforms, has very high flexibility in operation and maintenance, and in most cases requires lower capital costs and lower energy consumption. As for a membrane separation unit of the present disclosure, a corresponding permeable gas storage tank is designed for each stage of membrane separator. Moreover, the membrane separation unit is further provided with a retained gas storage tank, and the retained gas storage tank and each stage of permeable gas storage tank are each provided with an injection port.

Abstract: A synthetic leather article comprising a top coating derived from an internally emulsified PUD, a barrier layer derived from an externally emulsified PUD and a 2K non-solvent PU foam layer is provided. The leather article exhibits high delamination resistance while retaining superior mechanical properties and appearance comparable with those derived from the organic solvent-based PU. A method for preparing the synthetic leather article is also provided.

Abstract: Systems, apparatuses and methods may provide for technology that biases a word line of a block in NAND memory to a first voltage level, biases a source-side select gate and a drain-side select gate of the block to a second voltage level, and issues a discharge erase pulse to bitlines and a source of the block, wherein the discharge erase pulse is issued at a third voltage level, wherein the third voltage level is greater than the first voltage level and the second voltage level, and wherein the third voltage level is less than a fourth voltage level of a standard erase pulse. In one example, the discharge erase pulse injects holes into pillars of the block and bypasses an erase of cells in the pillars of the block.

Abstract: Provided are an antibody or antigen-binding fragment that specifically recognizes CD40, and a preparation method therefor and the use thereof.

Abstract: A non-sintered high-strength lightweight aggregate one-shot prepared from sulfur-based and alkaline-based solid wastes by stirring, granulation, and foaming, and a preparation method therefor and use thereof. The non-sintered high-strength lightweight aggregate is prepared from a sulfur-based solid waste, an alkaline-based solid waste, an auxiliary cementing material, a ferro-aluminum-sulfur cementing material, water, and a foaming agent as raw materials. Based on the mass of the total solid, the total content of the sulfur-based solid waste, the alkaline-based solid waste, and the auxiliary cementing material is 80-90 wt %, and the content of the ferro-aluminum-sulfur cementing material is 10-20 wt %. The mass ratio of the water to the total solid is (15-20):(80-85). The foaming agent accounts for 0.3-0.7% of the mass of the total solid. The mass ratio between the sulfur-based solid waste, the alkaline-based solid waste, and the auxiliary cementing material is (27-33):(27-33):(18-25).