Abstract: The present disclosure relates to a composition for preventing and treating muscle atrophy, which contains a lycii radicis cortex extract as an active ingredient. The composition of the present disclosure has a remarkable effect of improving muscle atrophy and superior safety and, thus, can be used to prevent and treat muscle atrophy without side effects.

Abstract: Disclosed is an on-board charging system in which, when a plurality of charging circuits is connected in parallel between input and output terminals, operation timings of switching circuits in the respective charging circuits are interlocked to minimize ripples of an input alternating current. The on-board charging system includes: a plurality of charging circuits configured to each have a power factor correction circuit portion for correcting a power factor of alternating current input power by pulse width modulation control of a switching element and to be connected in parallel with each other between an input terminal of the AC input power and an output terminal connected to an object to be charged; and a controller configured to interlock the switching elements to generate a PWM control signal for performing PWM control.

Abstract: A method of visualizing an image, a device and a system using the same. The method of visualizing, by a device operatively connected with an image provision server, an image configured in a hierarchical structure including a plurality of levels includes receiving tile visualization information in an encoded form from the image provision server, the tile visualization information including a tile visualization type determined according to whether at least one tile belonging to each of the levels of the image includes data; decoding the encoded tile visualization information and obtaining the tile visualization information; making a request to the image providing server for data for a target level and tile, which are to be visualized according to the tile visualization information; and displaying an image, which is to be visualized, received from the image provision server.

Abstract: Disclosed are a PFC controller and a method of controlling the PFC controller. The PFC controller can include: a voltage controller configured to control a PFC output terminal voltage using a PFC output terminal voltage value and a PFC output terminal requirement voltage value; a current controller configured to control a PFC input terminal current by deriving a PFC input terminal requirement current value using an output of the voltage controller and by deriving a PFC duty using the PFC input terminal requirement current value and a PFC input terminal current value; and a distortion compensator configured to monitor an input voltage of an input power source, determine whether the input voltage is distorted, and prevent a divergence of the PFC input terminal current by transmitting a distortion frequency to the current controller when the input voltage is distorted.

Abstract: A current stabilization method performed by a vehicle charging apparatus, which includes a power factor corrector for correcting a power factor of an alternating current (AC) power source, vehicle charging apparatus converting an AC voltage of the AC power source into a direct current (DC) voltage to charge a vehicle battery, may include downwardly-adjusting a current control bandwidth of the power factor corrector when the adjusting of the current control bandwidth of the power factor corrector is requested.

Abstract: Disclosed herein is a method for transforming data for low volume transmission of a meta model based protocol which monitors power amount data of new renewable energy, including: generating energy sensing data; receiving, by a client, the energy sensing data and transforming the received energy sensing data into meta model data including a meta model and meta data; generating packet meta model data by dividing and compressing the meta model data; transmitting the packet meta model data to a server through an Internet of Things (IOT) communication network; and parsing, by the server, the packet meta model data to output the meta model data.

Abstract: A low-noise amplifier in a receiver supporting a beam forming function may selectively change a phase shift for beam steering. The low-noise amplifier may include first and second transistors and a variable capacitance circuit connected to a gate of the second transistor. The variable capacitance circuit may selectively change capacitance thereof based on a capacitance control signal applied thereto according to beam-forming information, where the changed capacitance correspondingly causes a phase change in an output signal of the low-noise amplifier. A similar scheme may be employed for amplifiers in transmit signal paths to steer a transmit beam.

Abstract: Disclosed is a charging apparatus capable of reducing a low-frequency leakage current, the charging apparatus including a duty controller that determines the duty of a switching element in a power factor correction converter on the basis of the level of a common-mode component of an AC voltage of AC power provided from an external charging facility, the level of the DC voltage formed by a DC link capacitor, and a leakage current flowing from the connection node of input-terminal Y-capacitors and the connection node of output-terminal Y-capacitors to the ground.

Abstract: A charging apparatus may include a power factor correction converter including a switching element, to correct a power factor of AC power provided by external charging equipment through ON/OFF control of the switching element, to convert the corrected power factor into DC power, and to output the DC power; a DC link capacitor connected to both ends of the PFC converter to form a DC voltage; a DC-DC converter converting a magnitude of the DC voltage formed by the DC link capacitor into a magnitude of a voltage required by an energy storage device to be charged; and a duty controller configured to determine a duty of the switching element in the PFC converter based on a magnitude of a common-mode component of an AC voltage of the AC power provided by the external charging equipment and the magnitude of the DC voltage formed by the DC link capacitor.

Abstract: Disclosed is a separator which includes a porous polymer substrate including a polymer showing a variation in phase angle represented by the following Formula 1 at 0.1 Hz depending on an increase in temperature. An electrochemical device including the separator is also disclosed. Variation in phase angle at 0.1 Hz=[(Phase angle190?Phase angle280)/(Phase angle190)]×100?0%,??[Formula 1] wherein Phase angle190 means the phase angle of the porous polymer substrate at 0.1 Hz and 190° C., and Phase angle280 means the phase angle of the porous polymer substrate at 0.1 Hz and 280° C.

Abstract: An apparatus for controlling a low-voltage DC-to-DC converter of a vehicle for converting high-voltage power into low-voltage power may include a signal selector for selecting and outputting one of a charging-oriented voltage command for charging the battery or a preset burst mode voltage command for operation of the low-voltage DC-to-DC converter in a burst mode in which the battery cannot be charged, a battery charge/discharge current limiter for generating a voltage command compensation value for limiting charge current of the battery when the signal selector outputs the charging-oriented voltage command and limiting discharge current of the battery when the signal selector outputs the burst mode voltage command, and a controller for controlling an output voltage of the low-voltage DC-to-DC converter to follow a compensated voltage command generated by applying the voltage command compensation value to the voltage command output by the signal selector.

Abstract: A power conversion apparatus, a method for controlling the same and a vehicle including the same is provided. The power conversion apparatus includes a first power conversion portion having a first end connected to a first battery and a second end selectively connected to at least one of a power-supply portion and a second battery, a second power conversion portion having a first end connected to the first battery and a second end connected to the second battery. The second power conversion portion is configured to provide power supplied from the first battery to the second battery. A switching portion is configured to connect any one of the power-supply portion and the second battery to the first power conversion portion.

Abstract: A method of controlling an on-board charger (OBC) and an OBC system are capable of improving efficiency of the OBC by controlling a DC link voltage such that a DC-DC LLC converter of an ecofriendly vehicle always operates at a resonance frequency. The method includes: detecting a switching turn-on time of a switching unit and a conduction time of a diode, comparing the switching turn-on time with the conduction time, comparing a point of time when the switching unit is turned on with a point of time when the diode becomes conductive, determining an operating frequency region of the switching unit, and controlling a voltage of an input terminal of the LLC converter such that a switching frequency of the switching unit is in a resonance frequency region of the LLC converter according to the determined operating frequency region.

Abstract: An electrochromic device is provided which may efficiently supply electrons to an anode layer that donates electrons externally during initial driving of the device, thereby preventing the structural weakening of the device and improve the electrical stability and durability of the device, and to a method for fabricating the same. The electrochromic device includes a first electrode, a cathode layer, an electrolyte layer, an anode layer and a second electrode, which are sequentially deposited between opposite first and second transparent substrates. The electrolyte layer includes: a first electrolyte layer configured to provide electrolyte ions to the cathode and anode layers; and a second electrolyte layer formed between the first electrolyte layer and the anode layer to have a thinner thickness than the first electrolyte layer and having a mixture of the same electrolyte as that of the first electrolyte layer and a reducing agent.

Abstract: A charging apparatus capable of reducing low-frequency leakage current includes: a power factor correction converter including a switch, wherein the power factor correction converter converts an AC power inputted by an on/off control of the switch into a DC power by correcting a power factor of the AC power; a DC-DC converter changing a magnitude of voltage outputted from the power factor correction converter into a magnitude of voltage required by an energy storage device to be charged; a first duty controller determining a first duty value of the switch for outputting a voltage having a predetermined magnitude through the power factor correction converter based on a magnitude of a differential mode component of the AC power; and a second duty controller determining a second duty value of the switch for removing a common-mode component of the AC power based on the common-mode component.

Abstract: Provided are an electronic device and method for assisting with driving of a vehicle, the electronic device including: a sensing unit configured to sense a driving state of at least one external vehicle on an entry scheduled lane that the vehicle is to enter by changing lanes; a processor configured to determine an entry possible region on the entry scheduled lane based on the sensed driving state of the at least one external vehicle and determine an entry condition for entry of the vehicle into the entry possible region; and an outputter configured to output information about the entry possible region and the entry condition.

Abstract: Disclosed are a system and method for monitoring photovoltaic power generation, which may enhance compatibility with the existing legacy system by enabling data integration between monitoring systems that use different kinds of protocols on the basis of a meta-model and may automatically generate code for processing data and automatically generate a program for processing a protocol through the generated code, thus allowing even a user who does not know the protocol well to easily connect devices.

Abstract: Disclosed herein is a vehicle battery charging control system, which is capable of increasing efficiency of power delivered to an electric device and a low-voltage battery to improve fuel efficiency, by connecting a low-voltage DC-DC converter (LDC) to an AC power source instead of a high-voltage battery upon charging a low-voltage battery of a vehicle to prevent power delivery efficiency of an on-board battery charger (OBC) from being reduced.

Abstract: An apparatus and a method for assisting traveling of a vehicle are provided. The apparatus includes: a sensing unit; a processor configured to generate a traveling route available to the vehicle by using information acquired through the sensing unit while the vehicle is traveling; and a memory storing information about the generated available traveling route.

Abstract: According to the disclosed aspect, the ultrasonic probe provides the information of the target object, and by adjusting the scalpel provided on the ultrasonic probe based on the information, an ultrasonic probe and controlling method thereof provides to perform a precise incision for each layer of the target object and to detect the main part under the incision for preparing the dangerous situation. According to one embodiment of the present disclosure includes an incision unit configured to incise a target object, an adjustment unit configured to adjust the incision unit, a transducer configured to irradiate the ultrasonic signal to the target object and receive the reflected ultrasonic signal, and a controller configured to determine the inside of the target object based on the delivered signal by the transducer and control the adjustment unit corresponding to the inside of the target object.