Abstract: A conferencing apparatus and a method for switching an access terminal therein are provided. The conferencing apparatus according to one embodiment of the present disclosure includes: a conference information management module configured to generate mapping information for terminal identification information of a first terminal and access information of a conference participant who is accessing a conference through the first terminal; and an access switch module configured to provide a token corresponding to the mapping information to the first terminal according to an access terminal switch request from the first terminal and, when the token is received from a second terminal, switch a terminal of the conference participant from the first terminal to the second terminal according to validity of the received token.

Abstract: A bulk-acoustic wave resonator includes a substrate; a membrane layer forming a cavity with the substrate; a first electrode at least partially disposed on an upper portion of the cavity including an end portion that is thicker than other portions of the first electrode; an insertion layer including a first portion disposed adjacent to from the end portion of the first electrode and a second portion disposed on an upper portion of the first electrode; a piezoelectric layer disposed to cover the insertion layer; and a second electrode disposed on an upper portion of the piezoelectric layer.

Abstract: A supporting apparatus for a steering gear box includes a pressing yoke part for supporting a side surface of a rack bar to be engaged with a steering input gear in a shape to wrap the side surface of the rack bar, a supporting yoke part provided in a mounting groove together with the pressing yoke part, an elastic link part formed of an elastic material and extending from the pressing yoke part to be inserted into the supporting yoke part, a cover part provided at a position opposite to the supporting yoke part and shielding an inlet of the mounting groove, and a pressing part located between the supporting yoke part and the cover part and pressing the supporting yoke part by a predetermined elastic force.

Abstract: An acoustic resonator includes: a central portion; an extension portion extended outwardly of the central portion; a first electrode, a piezoelectric layer, and a second electrode sequentially stacked on a substrate, in the central portion; and an insertion layer disposed below the piezoelectric layer in the extension portion, wherein the piezoelectric layer includes a piezoelectric portion disposed in the central portion, and a bent portion disposed in the extension portion and extended from the piezoelectric portion at an incline depending on a shape of the insertion layer.

Abstract: A display apparatus includes a backlight unit comprising a light source emitting blue light, a green color conversion material and a red color conversion material, a first polarizer disposed on the backlight unit, a first base substrate disposed on the first polarizer, a thin film transistor disposed on the first base substrate, a second polarizer disposed on the thin film transistor, a first color conversion pattern and a second color conversion pattern disposed on the second polarizer, a first color filter disposed on the first color conversion pattern, a second color filter disposed on the second color conversion pattern, a second base substrate disposed on the first and second color filters, and a third polarizer disposed on the second base substrate and having a polarizing axis same as a polarizing axis of the second polarizer.

Abstract: A data transmission method according to an embodiment is performed by a computing device including one or more processors and a memory in which one or more programs to be executed by the one or more processors are stored. The data transmission method includes receiving, from connected client devices, peer-to-peer (P2P) network information of the client devices, extracting one or more of information on whether network access is successful and network quality information, which are matched with the P2P network information and pre-stored, and determining one of a first data transmission path and a second data transmission path as a data transmission path for the client devices based on one or more of the information on whether network access is successful and the network quality information.

Abstract: The present disclosure relates to a device for preventing overflow of urea water out of an injection hole of a urea water tank when urea water is injected into the injection hole. The device is configured to enhance the function of a ventilation flow path, thus efficiently relieving pressure in the urea water tank when urea water is injected into the urea water tank.

Abstract: A vent valve for a closed tank, the vent valve being provided in an upper surface of the closed tank storing liquid, may include an upper housing provided with an upper air hole disposed outside the closed tank; a lower housing provided with a lower air hole disposed inside the closed tank; and a valve core provided in a housing space area surrounded by the upper housing and the lower housing and providing a ventilation path through which only gas passes between the upper air hole and the lower air hole.

Abstract: An acoustic wave resonator includes a resonating part disposed on and spaced apart from a substrate by a cavity, the resonating part including a membrane layer, a first electrode, a piezoelectric layer, and a second electrode that are sequentially stacked. 0 ???Mg?170 ? may be satisfied, ?Mg being a difference between a maximum thickness and a minimum thickness of the membrane layer disposed in the cavity.

Abstract: An acoustic wave resonator includes a resonating part disposed on and spaced apart from a substrate by a cavity, the resonating part including a membrane layer, a first electrode, a piezoelectric layer, and a second electrode that are sequentially stacked. 0 ???Mg?170 ? may be satisfied, ?Mg being a difference between a maximum thickness and a minimum thickness of the membrane layer disposed in the cavity.

Abstract: An opening device for a urea water inlet may include a first body configured to be provided on an external side of an inlet of a urea filler neck; a second body disposed at an upper end portion of the first body with a ventilation gap between the first body and the second body, and provided with an internal space to be disposed above the inlet; a cover disposed at an upper end portion of the second body, and configured to receive a force to open the internal space of the second body; an opener provided in the second body, and configured to hold the cover at the upper portion of the second body when the cover is configured to close the internal space, and to release holding of the cover when being pressed toward an interior of the second body; and a membrane disposed between the first body and the second body to pass only air therethrough while covering the ventilation gap.

Abstract: A conference system and a method for interworking between an audio conference and a web conference in the system are provided. The method for interworking between an audio conference and a web conference according to one embodiment of the present disclosure includes recognizing, at an audio conference server, an access of a host terminal to an audio conference and activating the audio conference, transmitting, at the audio conference server, a notification of activation of the audio conference to a web conference server, and activating, at the web conference server, a web conference corresponding to the audio conference according to the notification of activation of the audio conference.

Abstract: A display panel includes: a light emitting device to generate light; a plurality of color conversion patterns including: a first color conversion pattern including first scattering particles dispersed in the first color conversion pattern and configured to scatter the light of the light emitting device; and a second color conversion pattern including second scattering particles dispersed in the second color conversion pattern and configured to scatter the light of the light emitting device; a plurality of color filters including: a first color filter overlapping the first color conversion pattern; and a second color filter overlapping the second color conversion pattern; and a single, low index of refraction layer substantially continuously extending in the surface direction to overlap the first and the second color conversion patterns. The single, low index of refraction layer has a refractive index lower than refractive indexes of the first and second color conversion patterns.

Abstract: A bulk acoustic resonator includes: a substrate including an upper surface on which a substrate protection layer is disposed; and a membrane layer forming a cavity together with the substrate, wherein a thickness deviation of either one or both of the substrate protection layer and the membrane layer is 170 ? or less.

Abstract: Provided are a conference access method and a terminal for performing the same. A terminal according to an embodiment of the present disclosure includes: an interface configured to receive a plurality of different access addresses for access to a conference from a conference server; an access attempter configured to attempt to simultaneously access the conference via each of the plurality of access addresses; and a priority allocator configured to collect an access result for each of the plurality of access addresses, and to allocate an access priority to each of the plurality of access addresses based on the access result, wherein the access attempter attempts to access the conference via an access address having a highest access priority among the plurality of access addresses.

Abstract: A device for opening and closing a urea inlet for a vehicle is configured to close an inlet of a urea filler neck in a push manner and to open the same in a pull manner, preventing a user from touching the vehicle body or peripheral portions when opening and closing the inlet.

Abstract: Disclosed are an undercover for vehicles with high elasticity and rigidity and a method of manufacturing the same. The undercover for vehicles with high elasticity and rigidity may include a needle-punched nonwoven fabric having a multi-layer structure of felt layers including a first PET fiber and a low-melting-point PET fiber, and each of the felt layers may have improved tensile strength and have optimized fiber alignment, to thereby improve the binding between fibers, mechanical rigidity and elasticity, as well as to reduce the weight of components, improve durability and secure harmlessness and inline workability.

Abstract: A terminal for connecting to a conference via a network according to an embodiment of the present invention includes an image acquisition unit configured to acquire each participant image received from a plurality of other terminals connected to the conference, a network monitoring unit configured to monitor performance of the network, an image analyzer configured to analyze the each participant image to acquire one or more of image information, speech information, and quality information of the each participant image when the performance of the network changes, and a quality controller configured to change the quality of at least some of the participant images according to the analysis result of the each participant image.

Abstract: Provided is a compound of Chemical Formula 1: wherein: among X1 to X4, one of X1 and X2, X2 and X3, or X3 and X4 are linked with * in the following Chemical Formula 2, and of the remaining two, one is hydrogen, and the other is R3: R1 and R2 are each independently hydrogen, deuterium, halogen, cyano, amino, a substituted or unsubstituted C1-60 alkyl, a substituted or unsubstituted C1-60 haloalkyl, a substituted or unsubstituted C1-60 alkoxy, a substituted or unsubstituted C1-60 haloalkoxy, a substituted or unsubstituted C3-60 cycloalkyl, a substituted or unsubstituted C2-60 alkenyl, a substituted or unsubstituted C6-60 aryl, a substituted or unsubstituted C6-60 aryloxy, or a substituted or unsubstituted C2-60 heterocyclic group containing one or more heteroatoms selected from the group consisting of N, O and S; one of R3 is hydrogen, and the other is —Si(R4)(R5)(R6), R4 to R6 are each independently hydrogen, deuterium, cyano, a substituted or unsubstituted C1-60 alkyl, a substituted or unsubst

Abstract: A display device including: a first substrate; a transflective layer disposed on a surface of the first substrate; a wavelength conversion layer disposed on the transflective layer; a capping layer disposed on the wavelength conversion layer; a first polarizing layer disposed on the capping layer; and a second polarizing layer disposed on the other surface of the first substrate. The first polarizing layer and the second polarizing layer have different polarization directions.