Abstract: Provided in embodiments of the present disclosure are a Channel State Information Reference Signal (CSI-RS) transmission method and apparatus. The method includes: configuration information is transmitted to a terminal, the configuration information including the number of Resource Blocks (RB) in an A-type RB group, and the A-type RB group comprises consecutive RBs for carrying all ports of CSI-RS; and the CSI-RS is transmitted to the terminal according to the configuration information. The present disclosure can solve the problem in the related art that system complexity is increased due to the unfixed number of antenna ports for the CSI-RS, and reduce the system complexity by transmitting the CSI-RS by means of the configuration information that includes the number of RBs included in the A-type RB group, and the A-type RB group comprises the consecutive RBs for carrying all the ports of the CSI-RS.

Abstract: Disclosed are a safety service system and a method thereof. The safety service system comprises: a collection unit for collecting position information and image information related to a protected person who is registered by a protector; and a service providing unit for providing the position information and the image information to one or both of the protector and a security company upon detection of a signal that the protected person is in danger.

Abstract: An information handling system includes a printed circuit board, a screw, and a processor. The printed circuit board includes a through hole via. The through hole via includes top and bottom sections plated with a conductive plating material, and a middle section without any conductive plating material. The screw is in physical communication with the top, middle, and bottom sections of the through hole via in the printed circuit board. The processor determines whether an electrical circuit is formed between the screw, the top section of the through hole via, and the bottom section of the through hole via. Based on the determination of the electrical circuit being formed, the processor provides an indication that no intrusion has been made into the information handling system.

Abstract: A method for preparing hydrogen gas includes a decomposition step, a first adsorption step, a second adsorption step, a first regeneration step, a third heat-exchange step, and a second regeneration step.

Abstract: There is provided a method of decoding an image, the method comprising: decoding information for motion information prediction of a current block from a bitstream, predicting motion information of the current block based on the information, refining motion information of the current block by using the decoded information and the predicted motion information of the current block and reconstructing the current block based on the refined motion information of the current block.

Abstract: The present disclosure discloses an emergency starting power supply for vehicles, belonging to the technical field of emergency starting power supply for vehicles. The emergency starting power supply for vehicles includes a shell, a power source, a circuit board, and an output terminal. The shell is provided with a first accommodating space and a first mounting part. The power source and circuit board are housed in the first accommodating space. The power source is electrically connected to the circuit board and the output terminal, respectively. The first mounting part is provided with a second accommodating space. At least a portion of the output terminal is housed in the second accommodating space. The output terminal is configured to output a current for starting an engine of the vehicle.

Abstract: A method for estimating information on a golf swing is provided. The method includes the steps of: when a photographed image of a user's golf swing is acquired, detecting at least one joint of the user from the photographed image using an artificial neural network model; and estimating information on the user's golf swing with reference to a position of the at least one detected joint.

Abstract: Disclosed are a controller and an operating method thereof. According to an embodiment of the present disclosure, a controller that controls a memory device, comprises: a host interface for determining a remaining resource index and outputting a task scheduling instruction when a data throughput determined based on data inputted/outputted between a host and the controller is lower than a maximum throughput required under a current workload pattern; and a processor for: selecting, in response to the task scheduling instruction, at least one of a plurality of internal tasks based on the remaining resource index and resource consumption indexes of the respective internal tasks, and performing the selected internal task while performing an input/output task.

Abstract: A power circuit can include a direct current to direct current converter configured to output a first voltage; a digital-to-analog converter configured to convert input data to an analog voltage and output a second voltage; and a voltage regulating circuit configured to receive the first voltage and the second voltage as inputs and output a voltage in which the second voltage is added to the first voltage, and reduce a slope of the voltage. Also, the input data to the digital-to-analog converter is updated during one horizontal period of a display device, and the voltage regulating circuit is further configured to commonly supply the voltage to pixels of the display device.

Abstract: A damper for a glove box including a cylinder including a cylinder body that defines a space therein, a partition that divides the space into a first space and a second space, and a first protruding portion protruding from the partition so that a hole formed in the partition is extended; a piston disposed in the first space to be movable in a first direction; a valve disposed in the second space; and an elastic support unit disposed in the second space to elastically support the valve. The elastic support unit is in contact with and pressed by the partition due to movement of the piston.

Abstract: A semiconductor device module may include a leadframe spacer that provides the functions of both a leadframe and a spacer, while enabling a double-sided cooling configuration. Such a leadframe spacer may include a leadframe surface that provides a die attach pad (DAP) that is shared by at least two semiconductor devices. The leadframe spacer may include at least one downset, where the semiconductor devices may be attached within a recess defined by the at least one downset. A first substrate may be connected to a first side of the leadframe. A second substrate may be connected to downset surfaces of the at least one downset, and positioned for further connection to the semiconductor devices in a double-sided assembly.

Abstract: Provided are a method and system for detecting an oil abrasive particle size. The method includes: acquiring a voltage signal of an oil abrasive particle in real time, where the voltage signal is generated in real time in a process that the oil abrasive particle passes through an electromagnetic abrasive particle sensor; establishing a voltage curve coordinate system with an amplitude of the voltage signal as a Y-axis and a time of the voltage signal as an X-axis, and obtaining a voltage curve; performing feature extraction on the voltage curve, and obtaining an area S defined by a voltage curve within a half voltage signal cycle T and the X-axis and a maximum absolute value A of a voltage signal value according to the voltage curve coordinate system; and inputting S and A to a trained back propagation neural network for prediction to obtain a predicted oil abrasive particle size.

Abstract: There is provided an inorganic hierarchical porous membrane comprising at least two layers, wherein each layer of the at least two layers comprises a different average pore size as compared to another layer of the at least two layers, and wherein the membrane comprises a patterned surface. There is also provided a method of forming the membrane.

Abstract: A system for footnote number automatic numbering includes: a document editing unit for receiving a footnote creation request from a user terminal and providing a footnote content input function; a reference management unit for receiving footnote content, which includes reference information, from the document editing unit, and creating a reference list which includes the footnote content; and a footnote number numbering unit for receiving a footnote number creation request from the document editing unit, generating a footnote number corresponding to the footnote number creation request in consideration of the presence of footnotes in the document being written on the user terminal and the location where the footnote will be entered, and providing the generated footnote number to the document editing unit, wherein the document editing unit receives the footnote number received from the footnote number numbering unit and automatically inputs the footnote number at the location where the footnote will be entered

Abstract: An electronic equipment accessory includes an accessory body and a holder assembly connected to the accessory body. The holder assembly includes a support member and a base. The base is rotatably connected to the accessory body. The support member is rotatable relative to the base between an extended position and a folded position. At the extended position, an included angle is formed between the support member and the base to thereby allow the accessory body to be supported on a support surface. The support member is rotatable relative to the base in one direction and the base is rotatable relative to the accessory body in another direction, thus the support member of the electronic equipment accessory can be adjusted with respect to the accessory body in multiple directions to thereby allow the electronic equipment accessory to support electronic equipment on a support surface at multiple different directions or tilted angles.

Abstract: A ceramic electronic component includes a body including a dielectric layer and an internal electrode; and an external electrode disposed on the body and connected to the internal electrode. The dielectric layer includes a plurality of grains and grain boundaries disposed between adjacent grains. The grain boundary includes a secondary phase including Sn, a rare-earth element, and a first subcomponent. The rare-earth element includes at least one of Y, Dy, Ho, Er, Gd, Ce, Nd, Sm, Tb, Tm, La, Gd and Yb. The first subcomponent includes at least one of Si, Mg, and Al.

Abstract: A method, including: monitoring resource utilization of an operating system (OS) with applications utilizing larger pages; determining the monitored resource utilization is greater than a threshold resource utilization; in response to the determining the monitored resource utilization is greater than a threshold resource utilization, determining a respective larger pages index value for each of the applications utilizing larger pages; and turning off larger pages utilization of a subset of the applications utilizing larger pages, wherein the subset comprises a predefined number of the applications utilizing larger pages that have highest determined larger pages index values.

Abstract: The present application provides a power supply system for supplying power to network device, comprising power supply module, housing, and stereoscopic accommodating space therebetween. The power supply module without a fan comprises: a primary circuit comprising at least one primary switch and configured to receive AC input voltage and convert the AC input voltage into a first voltage; a transformer comprising primary and secondary windings and configured to convert the first voltage into a second voltage, the primary winding is coupled to the primary circuit; and a secondary circuit comprising at least one secondary switch and configured to convert the second voltage into a DC output voltage for the network device, the secondary circuit is coupled to the secondary winding, the secondary switch adopts SMT package, and power density of the power supply module is 60 W/inch3 or more. The stereoscopic accommodating space is filled with liquid coolant for cooling.

Abstract: A method and apparatus for transmitting and receiving a block acknowledgement (ACK) in a wireless local area network (LAN) system are disclosed. An operation method for a first communication node comprises the steps of: generating a first data frame including first add block acknowledgment (ADDBA) information; transmitting the first data frame to a second communication node; and receiving, from the second communication node, a first receiver address (RA) including second ADDBA information generated by the second communication node in response to the first data frame.