Abstract: Disclosed is a post-treatment method of a piezoelectric oxide single crystal substrate for suppressing pyroelectric properties of the substrate, and a method for manufacturing a lithium tantalate single crystal substrate using the same. According to one aspect of the present disclosure, there is provided a post-treatment method of a piezoelectric oxide single crystal substrate, the method including: loading at least one reducing agent and the single crystal substrate into a treatment device; and performing reduction treatment by heat treating the substrate while maintaining the inside of the treatment device in a preset environment, wherein the preset environment means that heat treatment is performed at a temperature of 200° C. to 400° C. under normal pressure.

Abstract: A method of detecting mobile security file leakage of the present disclosure includes receiving, by a detection server, an operating system type from a mobile device, connecting, by the detection server, to the mobile device depending on an operating system to load a media file system, checking an analysis setting time by the detection server connected to the mobile device, analyzing, by the detection server, the media file system to detect presence or absence of an abnormality, generating, by the detection server, an analysis result based on presence or absence of an abnormality, checking whether there is an error in the analysis result and extracting an original file and a thumbnail file if there is no error by the detection server, deleting, by the detection server, a file from which an abnormality is detected based on the analysis result, and generating and storing a result report on the analysis result by the detection server, wherein the operating system type is at least one of a first operating system

Abstract: A portable bioreactor is provided. The portable bioreactor may comprise: a frame unit; a cell culture unit which has one side mounted to the frame unit and in which a plurality of supports for cell culture are arranged, the cell culture unit being provided with an inlet, through which a medium supplied from the outside flows in, and an outlet, through which the medium inside the cell culture unit is discharged to the outside, a medium adjustment unit installed in the frame unit and storing therein a certain amount of medium for the cell culture; a circulation pump installed and fixed to the frame unit to circulate the medium stored in the medium adjustment unit; and a gas supply unit for supplying gas to the medium adjustment unit to maintain the medium stored in the medium adjustment unit at a constant pH.

Abstract: A ventilation and heating apparatus for a child seat is provided. A ventilation mat with an embedded heating wire is mounted on a body of the child seat, so ventilation air is discharged toward a child's body through the ventilation mat in summer or when ventilation is required, and heating wire embedded in the ventilation mat is driven in winter, thus providing a comfortable seating environment for a child sitting on the child seat, and improving the sitting comfort of a child.

Abstract: A display device is provided. A display device including a plurality of light-output areas through which incident light is emitted and a light-blocking area which blocks the incident light, the display device includes a substrate, a bank layer which is disposed in the light-blocking area on the substrate and defines a plurality of openings, each of which is disposed in one of the plurality of light-output areas, and a color control pattern disposed in the opening of the bank layer, wherein the bank layer includes a first bank area which has a first thickness and defines the plurality of openings and a second bank area which is disposed between the plurality of openings and has a second thickness smaller than the first thickness.

Abstract: Disclosed are an AR optical system for measurement of ocular dyskinesia with improved quality of photographed images, and an AR apparatus including the same. According to one aspect of the present disclosure, there are provided an AR optical system for measurement of ocular dyskinesia with improved quality of photographed images by resolving the problem of uneven brightness and darkness occurring in the images due to structural problems, and an AR apparatus including the same.

Abstract: An apparatus provides information on a distance to empty (DTE) of a vehicle and an information providing method is performed thereby. The apparatus includes a display device configured to display DTE information of a vehicle and a controller configured to control operation of the display device. The controller determines low fuel efficiency-related information and high fuel efficiency-related information based on a current vehicle driving condition. The controller determines a low DTE value and a high DTE value based on the low fuel efficiency-related information, the high fuel efficiency-related information, and a current available battery energy. The controller also determines a current DTE value indicating a real-time DTE and controls operation of the display device to display the low DTE value, the high DTE value, and the current DTE value.

Abstract: A method of a transmitting node may comprise: exchanging, with a receiving node, configuration information for beam direction search; generating DoA measurement request frames based on the configuration information; transmitting the DoA measurement request frames to the receiving node through a coarse beam in a partitioned area selected among partitioned areas within a bean search range, in a transmission occasion of the DoA measurement request frames based on the configuration information; receiving a DoA measurement response message from the receiving node; identifying whether the receiving node is located within the selected partitioned area based on DoA information included in the DoA measurement response message; and in response to the receiving node being located within the selected partitioned area, changing a beam direction for beam alignment based on the DoA information.

Abstract: A fruit quantity measurement system includes an unmanned aerial vehicle configured to receive GPS information about a fruit tree region of a predetermined area and an RF signal transmitted from an RF transmitter installed for each fruit tree and provide fruit tree images captured using at least one image sensor while flying based on a predetermined flight plan over the fruit tree region, and a monitoring server configured to be connected to the unmanned aerial vehicle through a communication network to receive GPS information and an RF signal from the unmanned aerial vehicle, match and store location data for each fruit tree, analyze the fruit tree image, measure the number of fruits for each fruit tree, store fruit counting information, and provide the stored location data or fruit counting information for each fruit tree according to a request from a user terminal authorized in advance.

Abstract: A composition for mid-infrared light transmitting glass and a method for preparing same are disclosed. Provided according to an embodiment of the present invention are a composition for mid-infrared light transmitting glass and a method for preparing same, wherein the composition can be manufactured into a lens that has both excellent optical properties and physical properties.

Abstract: A pulse diagnosis device which can detect the pulsation signal of a radial artery using an optical sensor comprising: a sensor module for sensing the pulsation signal by closely adhering thereto a prescribed body part; and a system control portion for operating the sensor module, and processing the optical signal sensed from the sensor module, wherein the sensor module comprises: an optical waveguide-type sensor which is placed on the bottom surface of the sensor module, and lets the optical signal to pass therethrough and detects the change in optical characteristics due to the change in the pressure; a light-source module which is connected on one side surface of the optical waveguide-type sensor, and inputs the optical signal into the optical waveguide-type sensor; and an optical detector module which is connected on one side surface of the optical waveguide-type sensor, and detects the optical signal delivered from the optical waveguide-type sensor.