Abstract: The present disclosure relates to a plurality of host materials comprising at least one first host compound and at least one second host compound, and an organic electroluminescent device comprising the same. By comprising a specific combination of the compounds wherein the first host compound is represented by formula 1 and the second host compound is represented by formula 2, it is possible to provide an organic electroluminescent device having improved driving voltage, luminous efficiency, power efficiency and/or lifetime property.

Abstract: Provided are a system for business process automation and a method thereof. The system according to some embodiments may include a connect manager configured to register and manage application programming interface (API) information for services, a process execution engine configured to execute a target business process comprising a particular service task, which is a task using a particular service provided by a service module, and a connect broker configured to acquire API information for the particular service, registered through the connect manager, during execution of the target business process in response to a request from the process execution engine, and process the particular service task by sending a request for the particular service to the service module using the acquired API information.

Abstract: An image processing device comprises a data group generator, a gradient value manager, and a cost volume manager. The data group generator is configured to receive pixel values of an image that include phase and brightness information, and determine data groups indicating disparity of the image based on target pixel values, where the data groups correspond to a range that is determined according to the phase information. The gradient value manager is configured to determine gradient values of a region corresponding to the target pixel values and determine gradient information. The gradient information is determined by applying threshold values to the gradient values, where the threshold values are determined according to the target pixel values. The cost volume manager is configured to determine a cost volume by weighted summing the data groups based on the gradient information.

Abstract: A transparent-ultrasonic-sensor-based optical-ultrasonic integrated endoscopic probe according to one embodiment of the present disclosure may comprise: an optical fiber laser unit for emitting light; a transparent ultrasonic sensor, which is arranged between an object to be measured and the optical fiber laser unit to transmit, therethrough, the light emitted from the optical fiber laser unit, coaxially aligned with the light emitted from the optical fiber laser unit, radiating ultrasonic waves at the object, and receiving reflected ultrasonic waves; and a camera for acquiring an image of the object through the transparent ultrasonic sensor.

Abstract: A display assembly includes a display device having an upper surface on which an image is output, and a lens device detachably connected to the upper surface of the display device. The lens device includes a lens panel that refracts the image from the display device, and a connection layer disposed on a lower surface of the lens panel facing the display device and detachably connected to the upper surface of the display device. The upper surface of the display device includes first contact interfaces, and the connection layer includes second contact interfaces detachably connected to the first contact interfaces.

Abstract: A lactobacillus fermentation composition includes mushroom extract, skim milk powder, fructooligosaccharide, gelatin hydrolyzate, and mixed lactobacillus strain.

Abstract: An embodiment heat pump system of a vehicle includes a first cooling device including a battery module and a first line for circulating a coolant, an air conditioner unit including a compressor, an internal condenser, a main heat exchanger, a first expansion valve, and an evaporator that are interconnected through a refrigerant line for circulating a refrigerant, and a chiller connected to the first cooling device through the first line, connected to the refrigerant line through a first connection line, and configured to adjust a coolant temperature through heat-exchanging a selectively introduced coolant with the refrigerant. The air conditioner unit further includes a second expansion valve, a first valve, a second valve, a second connection line, a third connection line, and a fourth connection line.

Abstract: A ring-type wearable device is disclosed. The disclosed ring-type wearable device comprises: an outer ring member; an inner ring member separably inserted into the outer ring member; a sensor unit disposed in the outer ring member; and a control unit disposed in the outer ring member so as to be electrically connected to the sensor unit, wherein the sensor unit can maintain constant sensitivity in correspondence to the thickness of the inner ring member.

Abstract: Disclosed is a regenerative braking power generation system for trailers configured such that a generator is installed in a brake disc space portion of a trailer to self-generate electricity necessary for the trailer, wherein the regenerative braking power generation system includes at least one axle (3) fixed to a chassis (2) of a trailer, a wheel hub (5) and/or a brake disc (6) axially installed at an outer surface of the axle (3) via a plurality of bearings (4) so as to be passively rotated, a space portion (7) concavely formed in one side surface of the brake disc (6), a permanent magnet (8) fixed to an inner circumferential surface of the space portion (7) in tight contact therewith, the permanent magnet being configured to be rotated along with the brake disc (6), and a generator stator (9) fixed to an outer circumferential surface of the axle (3) corresponding to the permanent magnet (8).

Abstract: An electrolyte for a secondary battery is provided. The electrolyte for a secondary battery according to an embodiment of the present invention comprises: a non-aqueous organic solvent including propyl propionate (PP) and ethyl propionate (EP); a lithium salt; and an additive. The lithium salt is contained in a concentration of 0.6-1.6 M. Accordingly, when the electrolyte is applied to a battery and a flexible battery, excellent discharge performance can be exhibited in extremely low temperature and high temperature. In addition, the flexible battery of the present invention can prevent or minimize the deterioration of physical properties required as a battery even if repeated bending occurs. Such an electrolyte for a secondary battery of the present invention can be applied to various fields which require high discharge capacity at extremely low temperature and high temperature.

Abstract: A hydrogen supply method includes a two-side heat exchange mode in which both introducing a second fluid into a hydrogen storage part after the second fluid exchanges heat with a first fluid in a second heat exchanger in a state in which a compressor is driven to compress the first fluid and introducing the second fluid into the hydrogen storage part after the second fluid is heated or cooled in a thermal device are performed. The method also includes a one-side heat exchange mode in which one of introducing the second fluid into the hydrogen storage part after the second fluid exchanges heat with the first fluid in the second heat exchanger in a state in which the compressor is driven to compress the first fluid and introducing the second fluid into the hydrogen storage part after the second fluid is heated or cooled in the thermal device is performed.

Abstract: An embodiment multi-way coolant valve includes an outer housing including first to third outer inlets, first to third outer outlets, and a pump mount portion coupled to one of the outer outlets, an inner housing rotatably provided within the outer housing and including penetration holes corresponding to the outer inlets and outlets, a coolant line defined by a selective connection of the penetration holes such that the outer inlets and outlets are selectively connected, pads interposed between an interior circumference of the outer housing and an exterior circumference of the inner housing at locations of the outer inlets and outlets, respectively, and a driving device connected to a rotation center of the inner housing to selectively rotate the inner housing within the outer housing, wherein the inner housing is configured to rotate by a preset interval according to a selected vehicle mode.

Abstract: A method of preparing a carbon fiber including: preparing a precursor fiber for preparing a carbon fiber; and stabilizing the precursor fiber. The stabilization of the precursor fiber includes a first stabilization phase, a second stabilization phase, a third stabilization phase, and a fourth stabilization phase, which are set at four different temperatures between a temperature at which heat starts to be generated from the stabilization reaction of the precursor fiber and a temperature at which the generation of heat is maximized. Ozone gas is input while at least one phase of the third stabilization phase and the fourth stabilization phase is carried out.

Abstract: A propulsion module of an air mobility vehicle may include a door provided in the housing and opening or closing the opening portion of the housing by a sliding motion of the door; a propeller for providing propulsion to the air mobility vehicle; a link assembly having a first end portion connected to the housing and a second end portion connected to the propeller to pull the propeller into the internal space of the housing through the opening portion or pull the propeller outside the internal space through the opening portion; and a door opening and closing portion coupled to the door and configured for providing an opening and closing force to the door according to an inward-pulling motion or an outward-pulling motion of the propeller.

Abstract: A method for generating a key stream according to an embodiment includes generating r round keys that are each N-dimensional integer vectors including elements of an integer set defined based on a prime number t, based on a random bit string, an encryption counter, and a secret key that is an N-dimensional integer vector consisting of elements of the integer set , generating a first round output vector x1 by performing a modular addition operation on an initial vector and a first round key RK1 of the r round keys with the prime number t as a modulus, and generating a key stream that is an N-dimensional integer vector consisting of elements of the integer set from the first round output vector x1 by using a second to r-th round keys of the r round keys, and one or more first round functions and a second round function.

Abstract: Provided is an atypical environment-based location recognition apparatus. The apparatus includes a sensing information acquisition unit configured to, from sensing data collected by sensor modules, detect object location information and semantic label information of a video image and detect an event in the video image; a walk navigation information provision unit configured to acquire user movement information; a metric map generation module configured to generate a video odometric map using sensing data collected through a sensing information acquisition unit and reflect the semantic label information; and a topology map generation module configured to generate a topology node using sensing data acquired through the sensing information acquisition unit and update the topology node through the collected user movement information.

Abstract: An integrated circuit device includes a conductive region on a substrate and a lower electrode structure including a main electrode part spaced apart from the conductive region and a bridge electrode part between the main electrode part and the conductive region. A dielectric layer contacts an outer sidewall of the main electrode part. To manufacture the integrated circuit device, a preliminary bridge electrode layer is formed in a hole of a mold pattern on the substrate, and the main electrode part is formed on the preliminary bridge electrode layer in the hole. The mold pattern is removed to expose a sidewall of the preliminary bridge electrode layer, and a portion of the preliminary electrode part is removed to form the bridge electrode part. The dielectric layer is formed to contact the outer sidewall of the main electrode part.

Abstract: The present disclosure relates to an antibody binding specifically to CD55 or an antigen-binding fragment thereof; and a composition for preventing, treating and/or diagnosing cancer containing the same. The antibody of the present disclosure may be used as an effective therapeutic composition for various CD55-mediated diseases since it shows high binding ability and inhibitory effect for the CD55 protein which promotes tumor growth by inhibiting the complement immune mechanism. In addition, the antibody of the present disclosure may be usefully used as an effective therapeutic adjuvant that fundamentally removes drug resistance and remarkably improves therapeutic responsiveness in various diseases in which resistance to therapeutic agents with CDC (complement-dependent cytotoxicity) as a mechanism of action has been induced due to overexpression of CD55.

Abstract: A semiconductor device includes a substrate, a first active pattern disposed on the substrate, a second active pattern stacked on the first active pattern, a first gate structure extending to intersect the first active pattern and the second active pattern, a second gate structure spaced apart from the first gate structure and extending to intersect the first active pattern and the second active pattern, a first epitaxial pattern interposed between the first gate structure and the second gate structure, and connected to the first active pattern, a second epitaxial pattern interposed between the first gate structure and the second gate structure, and connected to the second active pattern, an insulating pattern interposed between the first epitaxial pattern and the second epitaxial pattern, and a semiconductor film interposed between the insulating pattern and the second epitaxial pattern, the semiconductor film extending along a top surface of the insulating pattern.