Abstract: A method of a terminal, according to an exemplary embodiment of the present disclosure, may include: requesting access to a mobile integrated access backhaul (IAB) based on cell search; receiving a tracking area (TA) update procedure stop request message from an Access and Mobility Management Function (AMF) of a core network; and deactivating a TA update procedure based on the TA update procedure stop request message.

Abstract: A method of an integrated access and backhaul (IAB) node may include: receiving, from a target base station, one or more user equipment (UE) context setup request messages including terminal radio resource reconfiguration information; sharing context information including the terminal radio resource reconfiguration information with a source IAB-distributed unit 1 (IAB-DU1); configuring terminal reconfiguration information using the shared context information; and transmitting one or more UE context setup response messages including the terminal reconfiguration information to the target base station in response to the one or more UE context setup request messages.

Abstract: A method of an IAB node may comprise: receiving an RRC message including measurement control information from a base station; transmitting RRC reconfiguration information including the measurement control information to each of a plurality of terminals; receiving a measurement report message including a measurement report generated by each of the plurality of terminals based on the measurement control information from each of the plurality of terminals; and grouping the measurement report messages received from the plurality of terminals into a grouped message report message, and transmitting the grouped measurement report message to the base station according to a grouped measurement reporting periodicity.

Abstract: Disclosed is an interface system including a first neuron cluster that outputs a first neuron signal including a first neuron request and first neuron data by performing a first arithmetic operation, and a first interface circuit that stores the first neuron data and outputs a first response, in response to the first neuron request. The first neuron cluster outputs a second neuron signal including a second neuron request and second neuron data by performing a second arithmetic operation, in response to the first response. Before the first data is transmitted to a second neuron cluster different from the first neuron cluster, the first interface circuit outputs the first response in response to a fact that the first neuron data is stored.

Abstract: Disclosed are a fingerprint forgery detection device and a method of operating the same. The fingerprint forgery detection device includes a memory that stores a first feature signal including biological channel feature information of a user, a transmitter including at least one transmission electrode for transmitting a pulse signal to the user, a receiver including at least one reception electrode for receiving a biological channel response signal in response to the transmitted pulse signal, and a signal processor for processing the biological channel response signal to detect whether a fingerprint is forged, and at least one processor that controls the memory, the transmitter, and the receiver.

Abstract: Disclosed is an amplification circuit, which includes a first amplifier that receives an external signal and performs first band pass filtering on the external signal to output a first filter signal, and a second amplifier that receives the first filter signal and performs second band pass filtering on the first filter signal to output a second filter signal, and a frequency pass bandwidth of the second band pass filtering is narrower than a frequency pass bandwidth of the first band pass filtering.

Abstract: A hybrid communication device, an operation method thereof, and a communication system including the same are provided. The hybrid communication device includes a contact unit that includes an antenna for receiving a first communication signal and an electrode for receiving a second signal, a switch controller that includes a first switch and a second switch and controls the first switch and the second switch based on a change in capacitance of the electrode, and a signal processing unit that receives at least one of the first communication signal and the second communication signal from the contact unit via the first switch and processes the received signal. The first switch is connected to the contact unit, and the signal processing unit is connected to the first switch.

Abstract: The present invention relates generally to a parallel cylinder-type check valve and, more particularly, to a parallel cylinder-type check valve in which two shock-absorbing dampers are connected in parallel to each other so as to absorb shock when a valve is closed, wherein the length of a rocker arm connected to any one shock-absorbing damper is adjusted to be longer according to the principle of a lever in order to provide a sufficient shock-absorbing effect. Also, the present invention relates to a parallel cylinder-type check valve, which is rapidly closed at a high speed at the time of the initial closing of the valve and is slowly closed at a low speed at the later closing of the valve by means of the parallel cylinder, thereby preventing noise and vibration, as well as preventing water hammer.

Abstract: The present invention relates to a check valve and, more particularly, to a check valve comprising a main disk and a separate auxiliary disk, the main disk making a rapid closing operation, and the auxiliary disk, which has an area smaller than that of the main disk, making a slow closing operation, thereby reducing the velocity of a reverse flow inside a conduit, right before the disks are finally closed, and preventing a slam (a characteristic phenomenon wherein, when the disks are closed with a bang, an instantaneous increase in pressure wave raises the possibility of piping fracture and causes noise and vibration) of the disks and water hammer.

Abstract: The present invention relates to a water piping system, and more particularly, to a water piping system configured to reduce slam and water hammer of a check valve through delay of backflow of fluid by ejecting water stored in a pressure tank to a fluid forward direction at a high pressure when a pump in the water pipe is suddenly stopped, and through inducement of complete closure of the check valve by reducing a pressure applied to the check valve.

Abstract: Disclosed is a water piping system. More particularly, the present invention relates to a water piping system having a function to dampen the effects of water hammer and check valve slam at a sudden stoppage of a pump and relates to a tank connector therefor, in which the water piping system ejects a high pressure jet stream from a high pressure tank in the direction of a primary flow in a main pipeline, thereby deterring the backflow of pipeline water in the main pipeline and reducing the pressure of pipeline water against a check valve, which enables the check valve to be slowly closed.

Abstract: The present invention relates to a water piping system. More particularly, it relates to a water piping system that can alleviate water hammer due to slamming of a check valve by reducing the pressure difference between the front end and the rear end of the check valve by supplying some of fluid at the rear side of the check valve to the front side of the check valve when a pump is stopped, and a method of controlling the water piping system. The present invention includes: a sub-pipe having both ends connected to a front side and a rear side of the check valve, respectively, and supplying some of fluid at the rear side of the check valve to the front side of the check valve to suppress negative pressure and low pressure that is generated at the front end of the check valve when the pump is stopped.

Abstract: The present invention relates to a water piping system prevents degradation of water quality due to fluid remaining in a fuel tank for a long period of time and removes air and other impurities in a pressure tank and a pipe, and a method of controlling the same. The water piping system includes: a pump pressurizing fluid; a main pipe for delivering the fluid pressurized by the pump; a main valve disposed at an outlet port of the pump in the main pipe; a pressure tank connected to the main pipe; and a sub-pipe having a first end connected to a front side of the main valve of the main pipe and a second end connected to the pressure tank so that some of fluid pressurized and discharged from the pump is delivered to the pressure tank through the sub-pipe, thereby discharging substances in the pressure tank to the outside.

Abstract: The present invention relates to a check valve and, more particularly, to a check valve comprising a main disk and a separate auxiliary disk, the main disk making a rapid closing operation, and the auxiliary disk, which has an area smaller than that of the main disk, making a slow closing operation, thereby reducing the velocity of a reverse flow inside a conduit, right before the disks are finally closed, and preventing a slam (a characteristic phenomenon wherein, when the disks are closed with a bang, an instantaneous increase in pressure wave raises the possibility of piping fracture and causes noise and vibration) of the disks and water hammer.

Abstract: The present invention relates generally to a parallel cylinder-type check valve and, more particularly, to a parallel cylinder-type check valve in which two shock-absorbing dampers are connected in parallel to each other so as to absorb shock when a valve is closed, wherein the length of a rocker arm connected to any one shock-absorbing damper is adjusted to be longer according to the principle of a lever in order to provide a sufficient shock-absorbing effect. Also, the present invention relates to a parallel cylinder-type check valve, which is rapidly closed at a high speed at the time of the initial closing of the valve and is slowly closed at a low speed at the later closing of the valve by means of the parallel cylinder, thereby preventing noise and vibration, as well as preventing water hammer.