Abstract: Disclosed is a small lens system including a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and an eighth lens, wherein the first lens has a lens surface convex toward an object, the second lens has a lens surface convex toward the object, the third lens has a lens surface convex toward the object, the fourth lens has a positive refractive power, the fifth lens has a negative refractive power, the sixth lens has a lens surface convex toward an image, the seventh lens has a positive refractive power and is configured such that a lens surface is convex toward the object in the vicinity of an optical axis, and the eighth lens has a negative refractive power and is configured such that an object-side surface and an image-side surface are concave in the vicinity of the optical axis.

Abstract: The present disclosure provides an inverter control device which estimates back electromotive force of an induction motor, and which uses a torque current and a flux current so as to calculate a slip frequency and compensate for same, thereby enabling the motor to operate at a constant speed. To this end, the present invention may comprise: a command voltage generating unit for outputting, to an inverter, a three phase PWM voltage with respect to a command frequency on the basis of a voltage/frequency operation; and a slip frequency determining unit for determining a slip frequency on the basis of a phase current and a phase voltage of a motor driven by the inverter.

Abstract: Disclosed herein are an apparatus and method for detecting violation of control flow integrity. The apparatus includes memory for storing a program and a processor for executing the program, wherein the processor multiple branch identifier registers to which identifiers of branch targets are written, a set branch identifier instruction configured to command an identifier of a branch target to be written to a branch identifier register at a predetermined sequence number, among the multiple branch identifier registers, and a check branch identifier instruction configured to command a signal indicating detection of a control flow hijacking attack to be issued based on whether a value written to the branch identifier register at the predetermined sequence number is identical to a value of an identifier of a branch target at the predetermined sequence number, wherein the program detects whether a control flow is hijacked based on the multiple branch identifier registers.

Abstract: Disclosed is a system for performing key management of an in-vehicle network. The key management system of the in-vehicle network includes a reception unit configured to receive a shared secret key of a central gateway and a domain gateway, a memory configured to store a program for performing key management of the in-vehicle network using the shared secret key, and a processor configured to execute the program. The processor generates a secret key to be stored in a node of the in-vehicle network using the shared secret key and a unique ID of the node.

Abstract: Disclosed is a small lens system including a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens sequentially arranged from an object, wherein the first lens has a convex surface facing the object, the second lens has a convex surface facing the object and a positive refractive power, the third lens has a positive or negative refractive power, the fourth lens has opposite surfaces convex toward an image, the fifth lens has opposite surfaces convex toward the image, the sixth lens has at least one aspherical surface and is configured such that the object-side surface of the sixth lens is convex in the vicinity of an optical axis, and the seventh lens has at least one aspherical surface and is configured such that at least one inflection point is provided on the aspherical surface of the seventh lens.

Abstract: A motion detection method using an image processing device may include: based on the noise level of a current frame, obtaining a weighted average of a sum of absolute differences (SAD) value and an absolute difference of sums (ADS) value; setting the weighted average as an initial motion detection value of each pixel; and selectively performing max filtering on motion detection values of the pixels to obtain a final motion detection value.

Abstract: The present invention relates to a novel N-acylurea derivative and the use thereof for the prevention or treatment of cardiovascular disease, and more particularly to a novel N-acylurea derivative, a pharmaceutical composition for prevention or treatment of cardiovascular disease, which contains the N-acylurea derivative as an active ingredient, and a method of preparing the N-acylurea derivative. The N-acylurea derivative according to the present invention can inhibit platelet aggregation by inhibiting the activity of talin in the intracellular matrix, and thus can be useful for the prevention or treatment of cardiovascular disease.

Abstract: One embodiment of a camera module includes: a lens barrel provided with at least one lens; and a lens holder having the lens barrel coupled thereto, wherein the lens barrel may have a first adhesive part formed thereon having the bottom surface thereof facing the top surface of the lens holder and adhered to the lens holder, the lens holder may have a second adhesive part formed thereon having the top surface thereof facing the bottom surface of the lens barrel and adhered to the lens barrel, and a first recessed groove having at least a portion of an adhesive deposited therein may be formed in the second adhesive part.

Abstract: Disclosed are an inverter control device and method. The method according to an embodiment of the present includes estimating a rotation speed of a motor, determining a slip frequency reference using an energy of a direct current terminal capacitor of an inverter, which provides an output voltage to the motor, and a direct current terminal energy reference when a direct current terminal voltage of the inverter is a certain level or less, and providing a frequency reference determined by adding the rotation speed of the motor and the slip frequency reference to the inverter.

Abstract: Disclosed is a small lens system including a first lens, a second lens, a third lens, and a fourth lens sequentially arranged from an object along an optical axis, wherein the thickness (ct1) of the first lens, the thickness (ct3) of the second lens, the thickness (ct5) of the third lens, and the thickness (ct7) of the fourth lens satisfy ct1+ct3>ct5+ct7, ct1>ct3, ct1>ct5, and ct1>ct7, the front surface of the first lens is convex toward the object while the SAG amount of the first lens is increased depending on the height thereof, the refractive power (P2) of the second lens satisfies ?0.01<P2<0.01, the front curvature (C3) and the rear curvature (C4) of the second lens satisfy |C3|<0.1 and |C4|<0.1, and the f-number of the lens system is less than 1.4.

Abstract: Disclosed is a small lens system including a first lens, a second lens, and a third lens sequentially arranged from an object along an optical axis, wherein the thickness (ct1) of the first lens, the thickness (ct3) of the second lens, and the thickness (ct5) of the third lens satisfy ct1/ct3>1.5 and ct1/(ct3+ct5)>0.8, the refractive power (P2) of the second lens satisfies ?0.01<P2<0.01, the lens thickness (et) at a predetermined height and the center thickness (ct) of the second lens thereof satisfy |et?ct|<5 ?m up to 30% of the height of the rear effective diameter thereof and satisfy et?ct<?20 ?m at 70% of the height of the rear effective diameter thereof, and the f-number of the lens system is less than 1.7.

Abstract: The present invention relates to a novel N-acylurea derivative and the use thereof for the prevention or treatment of cardiovascular disease, and more particularly to a novel N-acylurea derivative, a pharmaceutical composition for prevention or treatment of cardiovascular disease, which contains the N-acylurea derivative as an active ingredient, and a method of preparing the N-acylurea derivative. The N-acylurea derivative according to the present invention can inhibit platelet aggregation by inhibiting the activity of talin in the intracellular matrix, and thus can be useful for the prevention or treatment of cardiovascular disease.

Abstract: A washable nano-stratified encapsulation barrier is provided. The washable nano-stratified encapsulation barrier includes a stratified inorganic layer including an aluminum oxide layer, and a silica-polymer layer provided in direct contact with the aluminum oxide layer and having silicon (Si)-oxygen (O) bond. An electronic device is provided. The electronic device comprises a substrate; the washable nano-stratified encapsulation barrier and provided on the substrate; and an organic electronic device provided on the substrate.

Abstract: An electronic device according to various embodiments of the present invention comprises: a sensor module functionally connected with the electronic device; a receiving module functionally connected with the electronic device; and a processor, wherein the processor may detect that the electronic device is worn by a user, obtain content from an external electronic device in response to the detection, and execute the obtained content upon obtaining the content from the external electronic device.

Abstract: An heat treatment apparatus for a vehicle body component includes, a jig base, a lower fixed die fixedly installed on the jig base and supporting the vehicle body component that is press-molded into a predetermined shape, a heating unit installed on the lower fixed die and locally heating the vehicle body component, a plurality of side movable dies that can move reciprocally disposed at both sides of the lower fixed die, installed on the jig base, and selectively combinable with the lower fixed die, a cooling unit installed on each side movable die and cooling a heating portion of the vehicle body component, and an upper movable die that can move reciprocally in the up and down direction correspondingly to the lower fixed die, and configured to clamp the vehicle body component through the lower fixed die and at least one of the side movable dies combined together.

Abstract: A heating film may include a base layer made of polymer resin, a plurality of electrode lines spaced from each other and disposed on the base layer, a mesh-type support layer disposed between the electrode lines and made of a thermally conductive material, and a heating layer that has first and second end portions connected to the respective electrode lines, is made of a carbon composite material, and generates heat when powered.

Abstract: An electronic device according to various embodiments of the present disclosure includes: a housing; a user interface exposed through a portion of the housing; at least one communication circuit configured to discover and connect to another electronic device wirelessly without an access point or a base station; at least one processor operatively connected with the user interface and the communication circuit; and a memory operatively connected with the processor, wherein, when being executed, the memory stores instructions that cause the processor to transmit a plurality of first beacon signals for wireless connection by using the communication circuit during first time periods, to detect at least one second beacon signal for wireless connection, transmitted from an external device, by using the communication circuit, during one period of second time periods which are different from the first time periods, to receive multimedia data from an external server after detecting the at least one second beacon signal

Abstract: Disclosed is a measurement method for a glycated hemoglobin ratio. According to a measurement method for a glycated hemoglobin ratio of the present invention, reagents are easy and convenient to use because of their sequential leakage during the rotation of a cassette, are all discharged by the rotation with no remaining reagent, and are not mixed with each other. Therefore, measurement results are accurate, with fewer errors in the quantities of used reagents and sample blood.

Abstract: The present disclosure provides an inverter control device which estimates back electromotive force of an induction motor, and which uses a torque current and a flux current so as to calculate a slip frequency and compensate for same, thereby enabling the motor to operate at a constant speed. To this end, the present invention may comprise: a command voltage generating unit for outputting, to an inverter, a three phase PWM voltage with respect to a command frequency on the basis of a voltage/frequency operation; and a slip frequency determining unit for determining a slip frequency on the basis of a phase current and a phase voltage of a motor driven by the inverter.

Abstract: The present disclosure provides an inverter control device for estimating the magnetic flux of a rotor, and calculating and compensating for a slip frequency on the basis of a torque current and a magnetic flux current, to control the speed of an electric motor. To this end, the present invention may comprise: a command voltage generation unit for outputting a three-phase PWM voltage with respect to a command frequency to an inverter on the basis of voltage/frequency operation; and a slip frequency determination unit for determining a slip frequency on the basis of the phase current and phase voltage of an electric motor driven by the inverter.