Abstract: Disclosed is a speed reduction device for a vehicle motor. The speed reduction device includes an output gear connected to an output shaft of the motor, a transmission gear engaged with the output gear, a cam formed to be integrated with the transmission gear, a cycloid inner gear, a pair of wedges compressed against the inner peripheral surface of a through hole of the cycloid inner gear by elastic restoring force of a spring and configured to closely contact the cam, a ring gear partially engaged with the cycloid inner gear when the cycloid inner gear is eccentrically rotated, an end plate, and a final output gear configured to finally output rotational force of the cycloid inner gear, thereby preventing backlash between gears during rotational driving of the motor and reliably preventing movement of a seat after swivel adjustment is completed.

Abstract: An embodiment method of building a battery state of health (SOH) estimation model includes applying, by an optimization server, an error of a model voltage, an error of a measured voltage, a capacity, or a resistance of a battery mounted in a vehicle as an objective function and performing error minimization processing to derive optimal parameters of the battery.

Abstract: An air conditioning device for a vehicle includes: a housing having an inside divided into an inflow space, a heat exchange space, and an outflow space, which are straightly arranged, and having a plurality of discharge ports, which communicates with an interior, at the inflow space; a blowing unit disposed at the inflow space of the housing and configured to blow air; a heat exchange unit disposed at the heat exchange space of the housing and configured to adjust a temperature of conditioned air by exchanging heat with air; and an opening-closing door disposed at the outflow space of the housing and configured to open and close the plurality of discharge ports such that conditioned air at an adjusted temperature selectively flows to the plurality of discharge ports. The air conditioning device adjusts the temperature of conditioned air for respective modes and reduces a flow resistance of air.

Abstract: An array antenna is proved. The array antenna provides multi-polarization by arranging multiple ports at adjacent positions. Specifically, the array antenna includes a first substrate having a first thickness and a rectangular shape, a second substrate disposed to be in contact with the bottom surface of the first substrate and having a second thickness and a rectangular shape, a ground surface shared by the first substrate and the second substrate, and first ports and second ports disposed to penetrate the ground surface.

Abstract: An array antenna is proved. The array antenna provides multi-polarization by arranging multiple ports at adjacent positions. Specifically, the array antenna includes a first substrate having a first thickness and a rectangular shape, a second substrate disposed to be in contact with the bottom surface of the first substrate and having a second thickness and a rectangular shape, a ground surface shared by the first substrate and the second substrate, and first ports and second ports disposed to penetrate the ground surface.

Abstract: The disclosure relates to an array antenna, and specifically, relates to an array antenna which improves performance by using a shorting pin. The array antenna includes a first antenna, a second antenna, the first antenna and the second antenna sharing a ground, and a substrate disposed on an upper portion of the ground, and the second antenna is disposed in contact with an upper portion of the substrate, the first antenna is disposed by penetrating through centers of the substrate and the second antenna, the array antenna includes a plurality of feeding pins disposed by penetrating through the second antenna, the substrate, and the ground, and the array antenna includes a plurality of shorting pins penetrating through the second antenna, the substrate, and the ground to be symmetric with the plurality of feeding pins.

Abstract: The disclosure relates to an array antenna, and specifically, relates to an array antenna which improves performance by using a shorting pin. The array antenna includes a first antenna, a second antenna, the first antenna and the second antenna sharing a ground, and a substrate disposed on an upper portion of the ground, and the second antenna is disposed in contact with an upper portion of the substrate, the first antenna is disposed by penetrating through centers of the substrate and the second antenna, the array antenna includes a plurality of feeding pins disposed by penetrating through the second antenna, the substrate, and the ground, and the array antenna includes a plurality of shorting pins penetrating through the second antenna, the substrate, and the ground to be symmetric with the plurality of feeding pins.

Abstract: A 5th generation (5G) or pre-5G communication system for supporting a data transmission rate higher than that of a 4th generation (4G) communication system, such as long term evolution (LTE) is provided. The wireless communication system, includes a plurality of antennas for identifying a plurality of radio signal, a receiver for receiving the plurality of the radio signals via the plurality of the antennas, wherein the receiver may include a coupler circuit for coupling the plurality of the received signals to different signal paths, to generate a first coupling signal by summing the plurality of the received signals and a second coupling signal corresponding to a difference of the plurality of the received signals, and a beam generator for generating a plurality of beamformed signals based on in-phase signals and quadrature-phase signals corresponding to the first coupling signal and the second coupling signal.

Abstract: A wireless communication system, an apparatus and a method for integrating communication and sensing functions in the wireless communication system are provided. The communication device includes a communication unit for bi-directional communication, and a radar unit for sensing. The communication unit and the radar unit may commonly include a common transmit chain which generates a transmit signal. The transmit signal may have a first polarization. The communication unit may include a communication receive chain, and if a receive signal has the first polarization in response to the transmit signal, the communication receive chain may receive the receive signal having the first polarization via the hybrid coupler and perform communication and if the receive signal corresponding to the transmit signal has second polarization different from the first polarization, a sensing receive chain of the radar unit may receive the receive signal having the second polarization perform sensing by the radar unit.

Abstract: The disclosure relates to an array antenna, and more specifically, the array antenna configured by arranging a plurality of antenna elements at close positions. An array antenna is provided. The array antenna includes a first antenna operating in a first mode, and a second antenna operating in a second mode, wherein a correlation between an electric field of the first mode and an electric field of the second mode falls below a first threshold which is predetermined, or a correlation between a magnetic field of the first mode and a magnetic field of the second mode falls below a second threshold which is predetermined.

Abstract: A method and an apparatus for implementing transmission diversity using a single transmitter in a wireless communication system are provided.

Abstract: A 5th generation (5G) or pre-5G communication system for supporting a data transmission rate higher than that of a 4th generation (4G) communication system, such as long term evolution (LTE) is provided. The wireless communication system, includes a plurality of antennas for identifying a plurality of radio signal, a receiver for receiving the plurality of the radio signals via the plurality of the antennas, wherein the receiver may include a coupler circuit for coupling the plurality of the received signals to different signal paths, to generate a first coupling signal by summing the plurality of the received signals and a second coupling signal corresponding to a difference of the plurality of the received signals, and a beam generator for generating a plurality of beamformed signals based on in-phase signals and quadrature-phase signals corresponding to the first coupling signal and the second coupling signal.

Abstract: A method and an apparatus for implementing transmission diversity using a single transmitter in a wireless communication system are provided.

Abstract: The disclosure relates to an array antenna, and more specifically, the array antenna configured by arranging a plurality of antenna elements at close positions. An array antenna is provided. The array antenna includes a first antenna operating in a first mode, and a second antenna operating in a second mode, wherein a correlation between an electric field of the first mode and an electric field of the second mode falls below a first threshold which is predetermined, or a correlation between a magnetic field of the first mode and a magnetic field of the second mode falls below a second threshold which is predetermined.

Abstract: Provided are novel selective androgen receptor agonists, a preparation method thereof, and a pharmaceutical composition including the same at a pharmaceutically effective amount. The selective androgen receptor agonists according to the present invention act on androgen receptors to increase androgen activity, thereby being usefully applied as a therapeutic and prophylactic agent for diseases or conditions, of which symptoms may be improved or may respond to treatment by increased activities of androgen receptors, namely, a variety of hormone-related diseases in male and female, muscle wasting disorders, osteoporosis, etc.

Abstract: Provided are novel selective androgen receptor agonists, a preparation method thereof, and a pharmaceutical composition including the same at a pharmaceutically effective amount. The selective androgen receptor agonists according to the present invention act on androgen receptors to increase androgen activity, thereby being usefully applied as a therapeutic and prophylactic agent for diseases or conditions, of which symptoms may be improved or may respond to treatment by increased activities of androgen receptors, namely, a variety of hormone-related diseases in male and female, muscle wasting disorders, osteoporosis, etc.

Abstract: Disclosed are a novel oxazolidinone derivative exhibiting inhibitory activity against CETP, a preparation method thereof, and a pharmaceutical composition comprising the same. Exhibiting excellent inhibitory activity against CETP, the oxazolidinone derivative can be effectively applied to the prevention or treatment of various CETP enzyme activity- or HDL cholesterol level-related diseases such as dyslipidemia, atherosclerosis, and coronary heart disease.

Abstract: Disclosed are a novel oxazolidinone derivative exhibiting inhibitory activity against CETP, a preparation method thereof, and a pharmaceutical composition comprising the same. Exhibiting excellent inhibitory activity against CETP, the oxazolidinone derivative can be effectively applied to the prevention or treatment of various CETP enzyme activity- or HDL cholesterol level-related diseases such as dyslipidemia, atherosclerosis, and coronary heart disease.

Abstract: Disclosed herein is an optical transmission apparatus for visible light communication. The optical transmission apparatus includes a power conversion unit, a drive unit, an encoding unit, a control unit, and a detection unit. The power conversion unit provides Direct Current (DC) power to the lighting LED lamps. The drive unit is operated using a switching drive method and supplies operating current to the lighting LED lamps. The encoding unit is connected to an external network, receives and encodes data, and provides it to the drive unit. The control unit controls the operation of the power conversion unit, the drive unit, and the encoding unit. The detection unit measures the strength of a visible light signal sent by the lighting LED lamps.

Abstract: The present invention relates, in general, to a Radio Frequency Identification (RFID) system for reading or recording RFID tag information using radio frequencies and, more particularly, to an intelligent RFID system for low-powered reader-tag communication, which includes an RF shower system (370) that radiates a high power electromagnetic wave in a high frequency band to activate the passive tags having no batteries and that has predetermined communication means for reading information from a plurality of passive tags existing in a radiation zone having a predetermined size, storing the read tag information, and providing the stored tag information when a request is received from an RFID reader (310).