Abstract: The invention relates to the field of biomedical engineering, and discloses a hemostatic agent for jaw central hemangioma hemorrhage and a preparation method and application thereof. The invention is as follows: chitosan powder and organic weak acid are added into organic alcohol to react, so as to prepare chitosan weak acid salt, and then the chitosan weak acid salt is mixed with carboxymethyl chitosan in proportion to obtain the hemostatic agent of the invention. The hemostatic agent of the invention has good fluidity and plasticity. When applied to the hemostasis of jaw central hemangioma hemorrhage, the hemostatic agent of the invention can quickly reach the point of jaw central hemangioma hemorrhage without any stimulatation and damage to the tissue. In addition, the hemostatic agent of the invention can inhibit the growth of bacteria, eliminate cross infection, and is easy to clean and remove.

Abstract: Embodiments of the present application provide a battery cell, a battery, and a power consumption apparatus, which could effectively improve performance of the battery without increasing the internal space of the battery. The battery cell includes: an electrode assembly including a first end face and a second end face opposite to each other, the first end face being provided with tabs; and a lithium replenishing apparatus connected with the second end face.

Abstract: Embodiments of the present application provide a battery cell, a battery, and a power consumption apparatus, which could effectively improve performance of the battery without increasing the internal space of the battery. The battery cell includes: at least two electrode assemblies, a surface of each electrode assembly of the at least two electrode assemblies including a curved part, and curved parts of two adjacent electrode assemblies of the at least two electrode assemblies forming an accommodating space; and a lithium replenishing apparatus, at least part of the lithium replenishing apparatus being disposed in the accommodating space.

Abstract: The present disclosure relates to the technical field of computers, and provides a method and apparatus for processing DMA, and a computer-readable storage medium. The method includes: acquiring a DMA task used for processing DMA, and acquiring state information of the task; judging, according to stages contained in the task, whether the state information meets a first preset condition of a descriptor DMA queue and/or a second preset condition of a data DMA queue, wherein the descriptor DMA queue is used for processing a first stage contained in the task, and the data DMA queue is used for processing a second stage contained in the task; and judging whether to perform subsequent processing on the task.

Abstract: Immersion cooling systems, apparatus, and related methods for cooling electronic computing platforms and/or associated electronic components are disclosed herein. An example apparatus includes a first chamber including a first coolant disposed therein, the first coolant having a first boiling point. The example apparatus further includes a second chamber disposed in the first chamber, the second chamber to receive an electronic component therein. The second chamber includes a second coolant having a second boiling point different that the first boiling point. The second chamber is to separate the electronic component and the second coolant from the first coolant.

Abstract: Embodiments of the present disclosure provide a headphone including a sound production component and an ear hook. The ear hook includes a first portion and a second portion connected in sequence. The first portion being hooked up between an ear auricle and a head of a user, and the second portion is configured to be hang between an auricle of a user and a head of the user, the second portion extends toward a front outer side of the auricle, connects with the sound production component, and is configured to place the sound production component at a position close to an ear canal without blocking an opening of the ear canal, and at least a portion of the sound production component is inserted into an concha cavity. The sound production component and the first portion of the ear hook clamp the auricle in a wearing state.

Abstract: Embodiments of the present disclosure provide an earphone, comprising a sound production component including a transducer and a housing. The earphone further includes and an ear-hook, wherein the ear-hook places the sound production component at a position near an ear canal but not blocking the ear canal. The sound production component and the ear-hook have a first projection and a second projection, respectively, on a sagittal plane. A first distance exists between a centroid of the first projection and a highest point of the second projection along a vertical axis direction, and a ratio of the first distance to a height of the second projection along the vertical axis direction is in a range of 0.35 to 0.6. A sound outlet is provided on an inner side surface of the housing, other side surfaces of the housing are provided with one or more pressure relief holes.

Abstract: Embodiments of the present disclosure provide an earphone including: a sound generation component, including a transducer and a housing accommodating the transducer, the housing being provided with a sound outlet hole and a pressure relief hole, the sound outlet hole being provided on an inner side of the housing facing an auricle, and the pressure relief hole being provided on an other side of the housing; an ear hook configured to place the sound generation component near an ear canal without blocking the ear canal in a wearing state; and a microphone assembly at least including a first microphone and a second microphone provided in the sound generation component or the ear hook, the sound generation component or the ear hook being provided with a first sound receiving hole and a second sound receiving hole corresponding to the first microphone and the second microphone, respectively.

Abstract: The present disclosure relates to an earphone, comprising: a sound production component, at least a portion of the sound production component extending into a concha cavity; ear hook disposed between an auricle and a head of the user, extending toward a side of the auricle away from the head, and connecting the sound production component; in a non-wearing state, the ear hook and the sound production component form a first projection on a first plane comprising an outer contour, a first end contour, an inner contour, and a second end contour, the inner contour, the first end contour, the second end contour, and a tangent segment connecting the first end contour and the second end contour define a third closed curve, a ratio of a projection area of the sound production component on the first plane to a third area of the third closed curve is between 0.67 and 1.06.

Abstract: The present disclosure provides an earphone comprising a sound production component and an ear hook. In a wearing state, the ear hook is configured to place the sound production component at a position near an ear canal but not blocking the ear canal. An inner contour of the ear hook's projection on a user's sagittal plane includes a first curve having an extremum point in a first direction. The first direction is perpendicular to a long-axis direction of a projection of the sound production component on the sagittal plane. The extremum point is located behind a projection point of an upper vertex of the ear hook on the sagittal plane, and the upper vertex is a highest point of an inner contour of the ear hook along the user's vertical axis. An inclination angle of the long-axis direction relative to a horizontal direction is within a range of 13°-21°.

Abstract: A folding display device and electronic device are provided. The folding display device includes a first middle frame, a second middle frame, two bending members, a flexible display panel, and a first deadlocking structure. The first deadlocking structure includes a first deadlocking component fixedly connected to the first middle frame and a second deadlocking component fixedly connected to the second middle frame. When the folding display device receives a first force, the two deadlocking components are locked and connected to reduce probability of defects in the bending members. When the folding display device receives a second, the two deadlocking components are unlocked to realize free folding.

Abstract: A chip module has a plurality of first ports, at least some or all of the first ports are first selection ports, and each first selection port may act as a write port or a read port. The chip module further includes a first control module. The first control module controls, based on a transmit/receive requirement of the chip module, the first selection port to be switched to a read port or a write port, to match the transmit/receive requirement of the chip module. The first selection port may selectively act as a read port or a write port, so that switching can be performed based on an operating state of the chip module, increasing a read/write bandwidth. The first control module controls an operating state of the first selection port, to flexibly adjust a quantity of read ports and a quantity of write ports of the chip module.

Abstract: Provided is a method for manufacturing a catalyst with which it is possible to obtain a supported metal ammonia synthesis catalyst, in which there are restrictions in terms of producing method and producing facility, and particularly large restrictions for industrial-scale producing, in a more simple manner and so that the obtained catalyst has a high activity. This method for manufacturing an ammonia synthesis catalyst includes: a first step for preparing 12CaO·7Al2O3 having a specific surface area of 5 m2/g or above; a second step for supporting a ruthenium compound on the 12CaO·7Al2O3; and a third step for performing a reduction process on the 12CaO·7Al2O3 supporting the ruthenium compound, obtained in the second step. This invention is characterized in that the reduction process is performed until the average particle diameter of the ruthenium after the reduction process has increased by at least 15% in relation to the average particle diameter of the ruthenium before the reduction process.

Abstract: Provided is a road-rail dual purpose quick disassembly and assembly type rail grinding maintenance robot, including a left robot grinding unit, a right robot grinding unit and quick unit connecting devices. The two robot grinding units are fixedly connected to the left and right sides of the quick unit connecting devices by the quick unit connecting devices so as to achieve quick assembly and disassembly of the robot. Each of the robot grinding units includes a robot grinding device, a rail walking device, road walking devices, a frame, a shell component and an electric control component. The robot grinding device is fixedly installed on the inner side of the upper part of the frame. The rail walking device and the road walking devices are fixedly installed at the bottom of the frame. The degree of intelligent and flexible of rail grinding operation can be significantly improved.

Abstract: A display panel and a mobile terminal are disclosed. The display panel includes a pivot cover. An impact resistant structure is embedded in the pivot cover. The impact resistant structure includes a gravity sensing assembly and a telescopic assembly. The telescopic assembly includes a telescopic block. The impact resistant structure drives the telescopic block to switch between a contracted state and an elongated state through whether the gravity sensing assembly is forced by an external force, so that the telescopic block is switching between spaced from the frame body and abutted against the frame body, thereby making the impact resistant structure switch between a first state and a second state.

Abstract: A full-flat rear seat is a collapsible full-flat rear seat including a seatback board mounted on a rear surface of a backrest of the rear seat of a vehicle and providing a flat support surface together with a luggage board of the vehicle in being selectively unfolded, when the rear seat rotates, and the seatback board includes: a center seatback board mounted on a rear surface of the rear seat of the vehicle; an upper seatback board provided at an upper side of the center seatback board and configured to move relative to the center seatback board; and a lower seatback board provided at a lower side of the center seatback board and hinged thereto and configured to hingedly rotate toward one surface of the center seatback board.

Abstract: Provided are chimeric oncolytic adenoviruses simultaneously expressing IL-12, IFN-?, and CCL5, and an application thereof in tumor treatment. A capsid protein hexon of the oncolytic adenovirus is formed from chimerizing hexon sequences of the two serotype viruses Ad5 and Ad48, and a fiber protein is formed from chimerizing fiber sequences of the two serotype viruses Ad5 and Ad11. The chimeric oncolytic adenovirus can activate intrinsic anti-cancer activity of a variety of viral structural proteins, the ability to infect tumor cells is increased while also ensuring that the virus itself avoids interception from pre-existing neutralizing antibodies and adhesion and uptake of hepatocytes, and an effect of killing cancer cells is enhanced.

Abstract: Disclosed is a pumping method of a large-diameter horizontal pressurized long dewatering well for inexhaustible pumping strata. Clay layers and sand soil layers are determined according to construction positions of foundation pits, horizontal holes are drilled in the sand soil layers with a drill rig with simultaneous casing, and after the designed depth is reached, horizontal wells are placed, the horizontal wells are located above the junction of the clay layers and the sand soil layers, and the horizontal wells comprise drain pipes and air ducts, the drain pipes and the air ducts are located at the same elevation, each air duct is located between the two drain pipes, and the air duct is connected with the air pipe of the air compressor to deliver and pressurize, so as to facilitate water in the strata of aquifer to gather into the drain pipes.

Abstract: Provided is a method for manufacturing a catalyst with which it is possible to obtain a supported metal ammonia synthesis catalyst, in which there are restrictions in terms of producing method and producing facility, and particularly large restrictions for industrial-scale producing, in a more simple manner and so that the obtained catalyst has a high activity. This method for manufacturing an ammonia synthesis catalyst includes: a first step for preparing 12CaO·7Al2O3 having a specific surface area of 5 m2/g or above; a second step for supporting a ruthenium compound on the 12CaO·7Al2O3; and a third step for performing a reduction process on the 12CaO·7Al2O3 supporting the ruthenium compound, obtained in the second step. This invention is characterized in that the reduction process is performed until the average particle diameter of the ruthenium after the reduction process has increased by at least 15% in relation to the average particle diameter of the ruthenium before the reduction process.

Abstract: Embodiments of this application disclose a noise cancellation apparatus and method. The noise cancellation apparatus includes a main control unit and a noise cancellation processing circuit. The main control unit determines a noise cancellation parameter based on a noise cancellation level index or a feature value for determining a matching degree between a headset and an ear canal of a user. The noise cancellation processing unit obtains an inverse phase noise of an ambient noise based on the noise cancellation parameter. After the inverse phase noise is mixed with a played downlink audio signal, the ambient noise can be canceled. In addition, because the noise cancellation parameter is determined from a preset noise cancellation parameter library based on the received or autonomously determined noise cancellation level index, instead of being uniformly configured, a noise cancellation level can be flexibly adjusted, thereby improving a noise cancellation effect and user experience.