Abstract: Disclosed is a polycyclic aromatic compound that can be employed in an organic layer of an organic electroluminescent device. Also disclosed is a highly efficient organic electroluminescent device including the polycyclic aromatic compound. The use of the polycyclic aromatic compound significantly improves the luminous efficiency of the device.

Abstract: A cover window for a display device includes: a first film; a second film on the first film; and an adhesive layer between the first film and the second film. The adhesive layer has a lap shear modulus in a range of 20 kPa to 50 kPa.

Abstract: A dynamic routing device for a CAN message of a vehicle includes: a message reception unit configured to receive a message of a specific ID transmitted from a source controller and a designated specific message from at least one destination controller; a message reception filter configured to dynamically change based on at least one piece of information included in the specific message; and a gateway controller including the message reception unit and the message reception filter, wherein the gateway controller is configured to generate dynamic routing table information based on information about the specific message, check reception of a message with respect to only a message ID set to the message reception filter, and perform message routing on a destination controller designated in the dynamic routing table.

Abstract: An electronic device is provided. The electronic device includes housing, a touch screen display, a microphone, a wireless communication circuit, a processor, and a memory. The memory stores a software program including a user interface supporting the control of at least one external device based on a user account, and the memory stores at least one instruction that, when executed, causes the processor to receive a first user input for connecting the electronic device to a first external device, to receive a second user input corresponding to a request for performing at least part of a task by using the first external device, to receive a first response including a sequence of states from the second external device to perform, by the first external device, the at least part of the task depending on the sequence.

Abstract: A replaceable slide notch system for a firearm that includes a replaceable slide notch component dimensioned to fit within a corresponding cavity of a slide. The replaceable slide notch component includes a slide lock notch surface that locks the slide when the firearm's ammunition is exhausted. A second replaceable slide notch component has a second slide lock notch surface that locks the slide at a further rearward position than that of the first slide notch component, thus providing greater chambering/operating force when the slide is released.

Abstract: Disclosed is a composition of a lubricant for cold pilgering of zirconium alloy tubes. More particularly, disclosed is a composition of an external lubricant for cold pilgering of a zirconium alloy cladding tube, the composition exhibiting excellent lubricity and decomposition against microbes.

Abstract: Disclosed is a composition of a lubricant for cold pilgering of zirconium alloy tubes. More particularly, disclosed is a composition of an internal lubricant for cold pilgering of a zirconium alloy cladding tube, the composition exhibiting excellent lubricity and decomposition against microbes.

Abstract: An embodiment provides an imaging lens comprising first to fourth lenses that are sequentially arranged from an object side towards an image side and satisfying mathematical formula 1, wherein the first lens has negative refractive power, the second lens and the third lens have positive refractive power, and the fourth lens has negative refractive power. ?40.0<R1+R2<?20.0 where R1 is the curvature radius of the object side surface of the first lens, and R2 is the curvature radius of the image side surface of the first lens.

Abstract: The present disclosure relates to a method and an apparatus for classifying data points using convex hulls based on centroids of clusters, and a method for classifying data points according to one embodiment of the present disclosure comprises clustering data points into a plurality of clusters; constructing a hyperplane by using a set of centroids of singular clusters having a single class label from the plurality of clusters and removing singular clusters whose centroids are not used to construct the hyperplane; generating a convex hull for a singular cluster used to construct the hyperplane; removing internal data points except for the vertices of the generated convex hull from the singular cluster whose centroid is used to construct the hyperplane; and classifying a set of remaining data points except for the removed internal data points among the plurality of clusters.

Abstract: Disclosed is an apparatus for collecting a by-product in a semiconductor process, the apparatus including: a housing; a heater plate; a heater power supply unit; first and second upper horizontal brackets collecting a part of a by-product in a powder form; a by-product collecting tower allowing the exhaust gas to pass vertically and collecting a part of the by-product in a powder form; a lower horizontal bracket guiding the exhaust gas toward a window and collecting a part of the by-product in a powder form; the window blocking the powder form by-product from introducing toward a gas collecting and discharging port and guiding the exhaust gas thereto; and the gas collecting and discharging port. Accordingly, the apparatus can increase capacity of collecting by-products with a simple structure, thereby extending a replacement period of the apparatus and collect a large amount of by-products efficiently over a long period of time.

Abstract: A cover window for a display device includes: a first film; a second film on the first film; and an adhesive layer between the first film and the second film. The adhesive layer has a lap shear modulus in a range of 20 kPa to 50 kPa.

Abstract: An electronic device is provided. The electronic device includes housing, a touch screen display, a microphone, a wireless communication circuit, a processor, and a memory. The memory stores a software program including a user interface supporting the control of at least one external device based on a user account, and the memory stores at least one instruction that, when executed, causes the processor to receive a first user input for connecting the electronic device to a first external device, to receive a second user input corresponding to a request for performing at least part of a task by using the first external device, to receive a first response including a sequence of states from the second external device to perform, by the first external device, the at least part of the task depending on the sequence.

Abstract: An embodiment provides an imaging lens comprising first to fourth lenses that are sequentially arranged from an object side towards an image side and satisfying mathematical formula 1, wherein the first lens has negative refractive power, the second lens and the third lens have positive refractive power, and the fourth lens has negative refractive power. ?40.0<R1+R2<?20.0 where R1 is the curvature radius of the object side surface of the first lens, and R2 is the curvature radius of the image side surface of the first lens.

Abstract: A correlated double sampling (CDS) circuit including a comparator, the comparator including: a signal input unit including a first transistor configured to receive a ramp signal and a second transistor configured to receive a pixel signal; and an offset generator unit connected to the signal input unit, the offset generator unit including at least two transistors, wherein in the offset generator unit, an aspect ratio of the at least two transistors in an auto-zeroing period and an aspect ratio of the at least two transistors in a pixel signal decoding period are different from each other.

Abstract: Provided are methods and apparatuses for packet scheduling for software-defined networking in an edge computing environment. A packet scheduling method according to an exemplary embodiment of the present disclosure comprises: receiving packets arriving at a queue connected to a switch in a software-defined network in an edge computing environment; moving the packets in the queue forward one position based on the order of arrival each time a packet is served by the switch; and if a new packet enters the switch while the buffer in the queue is full, pushing out the packet at the front and putting the new packet at the end of the queue.

Abstract: A pulse generator of an image sensor includes a delay cell including a plurality of transistors arranged in series between a power voltage and a ground, a stabilization capacitor, and a stabilization switch. The power voltage is supplied to a first terminal of a first transistor disposed first among the plurality of transistors, and a gate terminal of the first transistor is connected to a first node. An input voltage is supplied to a gate terminal of an n-th transistor disposed last among the plurality of transistors, and a ground voltage is supplied to a first terminal of the n-th transistor. The stabilization switch is disposed between a reference voltage input terminal providing a reference voltage and the first node. The stabilization switch is turned on by an input bias control signal to supply the reference voltage to the first node.

Abstract: An output buffer circuit is disclosed to achieve a high slew rate without increasing current consumption. The output buffer circuit includes an input circuit configured to output a first signal and a second signal in response to an input signal, and a slew rate control circuit configured to connect one of the first signal and the second signal to an output terminal to control a slew rate of an output signal based on or in response to a potential difference between the input signal and the output signal.

Abstract: The present invention relates to a device and a method for measuring skin changes caused by blue light. A device for measuring skin changes caused by blue light according to one embodiment of the present invention comprises: at least one light source for irradiating light of a blue light band at different light amounts to a plurality of test areas set on a skin area to be tested; and a control unit for detecting a minimum pigmentation point among the test areas and calculating a light amount of the corresponding test area as a minimum pigmentation dose (MPD) for blue light. In addition, the present invention relates to a blue light irradiation device for irradiating a plurality of blue light beams in order to measure skin changes caused by blue light.

Abstract: According to various embodiments of the disclosure, An electronic device according to various embodiments of the disclosure may include: a communication module; a display; a memory; and a processor electrically connected to the communication module, the display, and the memory, wherein the memory stores instructions that cause, when executed, the processor to: receive a voice recognition trigger command during a call while a call connection with an external electronic device is maintained; execute a voice recognition function, based on a voice received from the external electronic device; determine a function execution command corresponding to a recognized voice; and execute a function of the electronic device according to the determined function execution command.

Abstract: An electronic device is provided. The electronic device includes a communication module, a microphone receiving a voice input according to user speech, a memory storing information about an operation of the speech recognition service, a display, and a processor electrically connected with the communication module, the microphone, the memory, and the display. The processor is configured to calculate a specified numerical value associated with the operation of the speech recognition service, to transmit information about the numerical value to a first external device processing the voice input, and to transmit a request for a function, which corresponds to the calculated numerical value, of at least one function associated with the speech recognition service stepwisely provided from the first external device depending on a numerical value, to the first external device to refine a function of the speech recognition service supported by the electronic device.