Abstract: The present disclosure provides a GGNMOS transistor structure, an ESD protection device, and an ESD protection circuit. The GGNMOS transistor structure can increase a capability of the ESD protection device to discharge an ESD current per unit size under the action of a P-N-P-N parasitic thyristor formed by an N-potential well, a P-type heavily doped region, and an N-type heavily doped region; the GGNMOS transistor structure can limit a transient peak current of ESD under the action of an equivalent resistor formed by an N-potential well, so that respective GGNMOS transistors of the ESD protection device can conduct uniformly, improving the reliability of the ESD protection circuit.

Abstract: A three-dimensional (3D) printing methodology is disclosed for freeform fabrication of hydrophobic structures without the use of printed support structures. The build material is directly printed in and supported by a fumed silica-containing yield-stress support bath to form an intermediate article in the support bath material. The intermediate article may be liquid or only partially solidified after being printed into the support bath material. The intermediate article is then heated or irradiated with ultraviolet radiation to initiate cross-linking to solidify the printed intermediate article, forming a finished article.

Abstract: An ambient image projection device includes a light source assembly, a first projection mechanism and a second projection mechanism provided side by side; the first projection mechanism includes a display and a first optical module, a content played on the display is guided by the first optical module to form a dynamic image to be projected in space; the second projection mechanism includes an interference lens and a second optical module, light emitted from the light source assembly is guided by the second optical module to pass through the interference lens and forms an interference pattern to be projected in space; the interference pattern and the dynamic image overlap at least partially with each other in the space. The device provides more stereoscopic dynamic visual experience by projecting images via a display.

Abstract: An upright soundbar with projection function including an upright body, a projection module, a camera module, a computing module and a base is provided. A first projection lens of the projection module is tilted, a first projection angle is between a first projection optical axis of the first projection lens and a horizontal line, the first projection angle ranges from 15 degrees to 60 degrees, a projection direction of the projection module and a photography direction of the camera module are reversed with respect to each other, and the upright body is movable along a vertical direction with respect to the base.

Abstract: The present invention provides a wireless communication method of an access point. The wireless communication method comprises the steps of: establishing a cache table comprising a plurality of reference MAC and corresponding PMKs and reference PMKIDs; receiving an association request from a station; reading a MAC address of the station and a PMKID from the association request; if the MAC address of the station and the PMKID do not match items of the cache table, performing a calculation on the PMKID to obtain an original PMKID; determining if the original PMKID matches any one of the reference PMKIDs within the cache table; and if the original PMKID matches one reference PMKID within the cache table, determining that the reference MAC recorded in the cache table and the MAC address belong to the same station.

Abstract: Air electrode, preparation method and application thereof are disclosed. The air electrode includes a first diffusion layer, a current collecting layer disposed on the first diffusion layer, a second diffusion layer disposed on the current collecting layer and a catalyst layer including catalytic active component, where the catalytic active component includes silicon powder.

Abstract: A fully-automatic production line and an automatic production method for rubber sealing rings. The fully-automatic production line includes a ring forming area, a molded vulcanization area, a flash removal area, a two-stage vulcanization area, an online detection area, a packaging and labeling area, and a control room. An automatic production line for rubber sealing rings involves the steps of loading and transferring, molded vulcanization, flash removal, second-stage vulcanization, packaging and labeling, and the like. The fully-automatic production line solves the technical problems in the prior art that the production of rubber sealing rings fails to adopt the molded vulcanization process, and meanwhile the specifications of the produced rubber sealing rings are single.

Abstract: The present disclosure provides an air mixer for a compressed air foam (CAF) fire-extinguishing system. A foam concentrate and compressed air are respectively transported by a liquid inlet pipe and an air inlet pipe. When the compressed air and the foam concentrate enter a straight pipe through a first tapered pipe, they reach an outlet end of the first tapered pipe through a path narrowing due to different cross-section diameters at two ends of the first tapered pipe, and there is a compression process. Under an action of a high-pressure airflow, the foam concentrate is fully mixed. The mixed foam concentrate reaches a porous plate of the straight pipe and can be mixed secondarily. When the foam concentrate is discharged by a second tapered pipe, a flow path widens and there is a release process.

Abstract: An automatic measurement circuit of an electrical energy generator, where the electrical energy generator having an input end connected to a power grid, and an output end connected to an electrical component, may include a discharge loop, having a switch and a discharge resistor connected in series, the discharge resistor discharging electrical energy generated by the electrical energy generator; a control circuit, which controls opening and closing of the switch; where, before the electrical energy generator supplies power to the electrical component, the control circuit controls the switch to close for a first duration, to perform discharging through the discharge resistor. The electrical energy generator and an automatic measurement circuit may measure the electrical energy output status of the electrical energy generator.

Abstract: Disclosed are a three-dimensional wildfire monitoring and control system and method for a power transmission corridor. The system includes: a wildfire-induced trip risk assessment module, for assessing, when a wildfire is detected in a power transmission corridor, a wildfire-induced trip risk in real time so as to determine whether to issue a wildfire warning; an online wildfire monitoring device layout planning module, for generating an online wildfire monitoring device layout plan for transmission lines based on the wildfire-induced trip risk, a blind spot of satellite monitoring and importance levels of the transmission lines; and a three-dimensional power transmission corridor wildfire monitoring and warning module, adopting multi-source satellites and drones, and realizing three-dimensional wildfire monitoring of the power transmission corridor by monitoring through online wildfire monitoring devices provided according to the layout plan, the multi-source satellites and the drones.

Abstract: A service packet processing method, apparatus, and system, the method including receiving, by a first network device, a first packet, where the first packet includes a first service path identifier, and the first service path identifier indicates a first service path for transmitting the first packet, generating, by the first network device, a second packet based on the first packet, where the second packet includes a second service path identifier indicating a second service path, and the second service path identifier is different from the first service path identifier, and sending, by the first network device, the second packet via the second service path.

Abstract: A polymer three-dimensional (3D) printing methodology is disclosed for freeform fabrication of polymeric structures under ambient conditions without the use of printed support structures, without use of a support bath, and the like. The build material can be dissolved in a suitable solvent for 3D printing. The polymer solution can be printed (e.g., continuously printed using a moving dispensing nozzle) in air without the use of supports (e.g., without the use of a support bath, a concurrently printed support posts, or the like) while a nebulized coagulation agent is dispersed alongside the printed polymer solution to at least partially coagulate the polymer solution and form an intermediate article. The self-supporting intermediate article may then be immersed in a post-printing coagulation solution to remove some or all of the remaining solvent, causing the build material to fully solidify to form a finished article from the intermediate article.

Abstract: A method for packaging a chip, the chip is packaged by disposing positioning post on the surface of the carrier, and the groove matching the positioning post is formed on the surface of the chip. During melting the first solder pastes and the second solder pastes , due to the interaction between the positioning post and the groove, the chip will not be deflected due to the tension of the first solder pastes and the second solder pastes, so that a chip packaging structure meets the expected requirements. The chip packaging structure is further provided in the present disclosure.

Abstract: A three-dimensional (3D) printing methodology is disclosed for freeform fabrication of hydrophobic structures without the use of printed support structures. The build material is directly printed in and supported by a fumed silica-containing yield-stress support bath to form an intermediate article in the support bath material. The intermediate article may be liquid or only partially solidified after being printed into the support bath material. The intermediate article is then heated or irradiated with ultraviolet radiation to initiate cross-linking to solidify the printed intermediate article, forming a finished article.

Abstract: A power supply management system includes a monitoring module and a plurality of battery modules. The battery module includes a BMS, a DC/DC converter, and a plurality of battery packs. When the battery packs of the plurality of battery modules are charged or discharged by using the DC/DC converter, the monitoring module may detect charge/discharge rates of the battery modules, and when the charge/discharge rates of the battery modules are less than a specified threshold, control a part of battery modules that are being charged or discharged to stop being charged or discharged. After a quantity of battery modules that are being charged or discharged is decreased, the charge/discharge rates are increased.

Abstract: The present invention provides an electronic device including a first antenna, a second antenna and a wireless communication chip. The wireless communication chip is configured to control the first antenna to broadcast a packet, control the second antenna to receive the packet broadcasted from the first antenna, and determine channel state information according to the packet received by the second antenna.

Abstract: A method for continuously collecting fluorescence data of a microfluidic chip is provided. In the method, an optical path system emits a light perpendicular to the microfluidic chip, such that a center of a light spot formed by the optical path system on the microfluidic chip is located on a circle formed by centers of all reaction cells. The microfluidic chip is rotated around a center of the circle formed by centers of all the reaction cells. Fluorescence signal values are collected by using the optical path system along a rotation direction of the microfluidic chip. The collected fluorescence signal values are processed to obtain effective fluorescence data of all the reaction cells.

Abstract: Described herein are apparatuses, systems, and methods for fabricating tissue constructs, such as by fabricating perfusable tissue constructs by embedding a sacrificial material into a composite matrix yield stress support bath. A composite matrix bath can include a microgel filler and a hydrogel precursor. An extrusion tip can be used for embedded printing of perfusable tissue constructs by disposing sacrificial material into the composite matrix bath while the extrusion tip travels along a predefined course through the composite matrix bath. This sacrificial material can be the printed tissue construct or can be removed to render the matrix bath a perfusable tissue construct. The composite matrix bath can include acellular or cell-laden hydrogels. The sacrificial material can include a salt and a physiological buffer or a non-cytotoxic porogen material. The hydrogel precursor can include at least one of gellan and gelatin. Cross-linking can be carried out chemically, thermally, enzymatically, or physically.

Abstract: An optical positioning code disk, device and method for a microfluidic chip are provided. A cross section of an outer contour of the code disk is circular. N light transmissive openings are arranged uniformly around the code disk. The device includes: the code disk, a positioning pin, a rotating shaft, a motor, an internal photoelectric switch and an external photoelectric switch. A positioning surface is provided on the rotating shaft. The motor is fixedly connected with an end of the rotating shaft, and the other end of the rotating shaft passes through a center of the cross section of the code disk. The internal and external photoelectric switches are configured to identify the light transmissive openings on the code disk.

Abstract: Described herein are injectable composite inks composed of a hydrogel continuous phase with a plurality of microgels present within the hydrogel continuous phase. The inks described herein have unique chemical and physical properties that enable them to be printed into a number of different types of articles. The articles produced by the injectable composite inks have numerous medical applications.