Abstract: A method of preparing a vinyl chloride polymer is provided. The method includes: preparing a mixture by adding an alcohol to a vinyl chloride polymer slurry (S1); separating a waste liquid from the mixture to obtain a vinyl chloride polymer (S2); and adding at least a portion of the separated waste liquid to the mixture (S3); wherein a content of the at least a portion of the separated waste liquid added in Step S3 is in the range of 33.0 to 35.0 parts by weight with respect to 100 parts by weight of the mixture.

Abstract: Disclosed are a cell-level analysis method of a memory and a computing device for performing the same. The cell-level analysis method of a memory is a cell-level analysis method of a memory that is executed in a computing device including one or more processors and a memory storing one or more programs executed by the one or more processors, the cell-level analysis method including acquiring information on a location of each cell in the memory, generating graph-structured data for a target cell based on the location of each cell in the memory, and training a graph neural network model to predict one or more of an electrical characteristic of the target cell and a program and verify level (PV level) of the target cell by inputting the graph-structured data into the graph neural network model.

Abstract: An organic light-emitting display device includes a base substrate, a pixel array, a first power voltage wiring and a second power voltage wiring. The base substrate includes a pixel area and a peripheral area. The pixel array is disposed in the pixel area. The first power voltage wiring is disposed in the peripheral area and includes a first lower power voltage line and a first upper power voltage line. The first upper power voltage line is disposed on and contacts the first lower power voltage line. The second power voltage wiring is disposed in the peripheral area and includes a second lower power voltage line and a second upper power voltage line. The second upper power voltage line is disposed on and contacts the second lower power voltage line. The first upper power voltage line overlaps the second lower power voltage line in a plan view.

Abstract: There is disclosed a door handle having a vein authentication function including a housing provided in a door; a sensor provided in the housing for sensing a user's hand touching the housing or located in a preset region; a controller receiving a measured value from the sensor part; and an authentication part operating based on a control signal of the controller, photographing the user's hand and transmitting the photograph of the user's hand to the controller, wherein the authentication part has a photographing angle that is variable based on a position of the user's hand.

Abstract: The present disclosure provides a method of seamless playback between downloaded data and streaming data by using a local web server, and a device for the same, and provides in at least one embodiment a method of operating a terminal for seamless playback of content, including downloading and storing in a storage, by a download agent, initial segments that is at least some of media segments composing each of a plurality of contents, and transferring, by a local web server to a player, initial segments of a first content among the media segments stored in the storage, and requesting, by the local web server, the download agent to download remaining segments of the first content.

Abstract: Disclosed is an apparatus for reducing floating radioactive material in a containment building capable of reducing radioactive material in the event of a major accident in a containment building such as a nuclear power plant. A radioactive material reduction unit configured to reduce radioactive material in the air is provided upstream of a flow induction unit configured to induce an air flow through catalytic reaction with hydrogen in the air in the event of a major accident. The flow induction unit may have a replaceable modular form. The radioactive material reduction unit may include an adsorber module configured to remove gaseous radioactive material, such as iodine or an iodine compound. The adsorber module may have a replaceable modular form. In addition, the radioactive material reduction unit may further include an aerosol filter fixed to an inlet to remove particulate radioactive material.

Abstract: The present disclosure provides a video processing system for providing digital rear view monitoring and digital video recording in a vehicle, and electronic devices and operating methods of the same. In the present disclosure, the video processing system is configured to receive and store a front view video and a rear view video of the vehicle, and to display the rear view video on a digital rear mirror module. According to a first example embodiment, the video processing system may be implemented with a first electronic device configured to display the rear view video on the digital rear mirror module, and a second electronic device configured to store the front view video and the rear view video. According to a second example embodiment, the video processing system may be implemented with a single electronic device.

Abstract: The present disclosure provides a digital rear mirror device for easy operation based on a button or a sensor and an operating method of the same. In the present disclosure, the digital rear mirror device may be configured to, in response to at least one button arranged on at least one edge of a display module, display identification information on an operation function assigned to the button through the display module. Here, the button may include at least one of a physical button and a touch button. In the present disclosure, the digital rear mirror device may be configured to switch the display module based on a signal detected through at least one sensor that is arranged on at least one edge of the display module. Here, the sensor may include at least one of a motion sensor, a proximity sensor, and a touch sensor.

Abstract: A cold water production apparatus according to one embodiment of the present invention can include an apparatus body; a water tank which is provided in the apparatus body and which accommodates water flowing in from a water supply source; a cold water production pipe which is provided in the apparatus body so as to be connected to the water tank, and which allows the water accommodated in the water tank to flow thereto, move therein and then be discharged; and a cooling unit which is mounted on the outer surface of the apparatus body, and which cools the apparatus body so that the water accommodated in the water tank and the water flowing in the cold water production pipe is cooled.

Abstract: The present disclosure relates to a method and apparatus enabling setting of I/O parameters for communication between a system-on-chip and a memory.

Abstract: Provided are a method for preparing a catalyst composition for preparing a catalyst composition having improved catalyst activity by pre-treating a hydrogen-bonded lanthanide rare earth element compound and/or an oligomer type of a lanthanide rare earth element compound of Formula 1, which induce the deterioration of the catalyst activity, and a method for preparing a conjugated diene-based polymer using the catalyst composition prepared thereby, wherein all the variables are described herein.

Abstract: The present disclosure provides an electronic toll collection system (ETCS)-supporting integrated digital rear mirror device and an operating method thereof. According to an example embodiment, the digital rear mirror device may include a digital rear mirror module configured to provide a rear view of a vehicle within a single housing and an ETCS module for electronic toll collection for the vehicle. A substrate of the digital rear mirror module and a substrate of the ETCS module may be separately arranged rather than being stacked within the digital rear mirror device. According to another example embodiment, the ETCS module may transmit information received from an external device to the digital rear mirror module, and the digital rear mirror module may display the information while providing the rear view. Here, the information may include at least one of billing information, event information, traffic information, environmental information, and disaster situation information.

Abstract: A display device includes a substrate; at least one data line disposed on the substrate; a first pattern disposed on the substrate and spaced apart from the data line; a first insulating layer at least partially disposed on the data line and the first pattern; an active layer disposed on the first insulating layer and at least partially overlapping with the first pattern; a first gate insulating layer disposed on the active layer; and a first electrode disposed on the first gate insulating layer and overlapping with the active layer, wherein the first electrode does not overlap with the data line in a direction parallel to an upper surface of the first insulating layer.

Abstract: An optimal automatic mapping method between a real image and a thermal image in a body heat tester, and the body heat tester using the method. The real image from the real imaging camera has wider angle of view than the thermal image from the thermal imaging camera, to maximize the use of thermal imaging without omission of thermal imaging pixels in a thermal inspection device using an infrared imaging device. The body heat tester comprises a thermal imaging camera, a real imaging camera and a data processing unit. The data processing unit matches the thermal and real images, obtains the reconstructed real image matched with the thermal image by stretching or shortening the top, bottom, left, and right of the real image based on the thermal image, and detects the body heat (temperature) of the subject using the thermal image and the reconstructed real image.

Abstract: Provided are an electronic device for performing an integrated multi-function using a single rear view image of a vehicle and an operating method thereof. Herein, the electronic device is configured to receive a rear view image from a camera device and to process the rear view image to a plurality of target images for a plurality of functions. For a function of a digital image recording system function, the electronic device may store the rear view image as a first target image. For an around view monitoring function, the electronic device may display a portion of the rear view image as a second target image that is a portion of an around view image around the vehicle. For a digital rear view monitoring function, the electronic device may display a portion of the rear view image on a digital rear mirror as a third target image.

Abstract: An atomic layer etching method using a ligand exchange reaction may include a substrate providing step of putting a substrate with a thin film formed thereon into a reaction chamber, a halogenated thin film forming step of forming a halogenated thin film on a surface of the thin film by infusing a halogenated gas into the reaction chamber, and an etching step of etching the halogenated thin film by infusing a ligand without a metal or metal precursor into the reaction chamber with the substrate with the halogenated thin film.

Abstract: Disclosed are a method and an apparatus for an instant messaging service to provide a schedule service. A schedule management server according to an example embodiment includes receiving a schedule creating request, selecting any one of a first type of calendar belonging to a chatroom in which the schedule creating request is created and a second type of calendar belonging to a user account which creates the schedule creating request, according to a schedule type included in the schedule creating request; and creating a schedule corresponding to the selected type of calendar.

Abstract: According to an embodiment of the present disclosure, a memory device includes a memory cell array including a plurality of planes; a charge pump configured to generate an operating voltage used for an operation on each of the plurality of planes according to a first clock signal having a first cycle; page buffers each configured to store pass data representing whether an operation of each of the plurality of planes has been completed; and an operation control circuit configured to, based on a number of the pass data received from the page buffers, control the charge pump to generate the operating voltage according to a second clock signal having a second cycle that is longer than the first cycle.