Abstract: Disclosed are a protective coating composition for an electronic board and a method for preparing the same. The protective coating composition includes urethane-modified alkyd resins that can prevent poor grounding caused by low molecular weight siloxanes generated in a conventional silicone-type coating compositions and preventing performance degradation caused by tin whisker growth while lowering emissions of volatile organic compounds (VOCs).

Abstract: Disclosed is a headrest device for a vehicle. The headrest device may include a stationary headrest portion coupled to a seatback of the vehicle and formed to extend upwards. The stationary headrest portion may be located at a rear of a head of an occupant. The headrest device may include a movable headrest portion coupled to the stationary headrest portion so as to be slidable in a vertical direction, the movable headrest portion may be located in front of the stationary headrest portion. The headrest device may include an actuator including a first side coupled to the fixed part, and a second side coupled to the movable headrest portion. The actuator may be configured to cause the movable headrest portion to slide in the vertical direction.

Abstract: A plasma processing apparatus includes: a plasma chamber; a radio frequency (RF) power supply configured to generate plasma in the plasma chamber; an electromagnet configure to apply a magnetic field to the plasma; and a pulse current generator configured to provide a pulse current to the electromagnet, wherein each period of the pulse current includes a first section and a second section subsequent to the first section, and the pulse current generator is further configured to: provide, at the first section, the pulse current to the electromagnet in a first direction to generate the magnetic field, and provide, at the second section, the pulse current to the electromagnet in a second direction opposite to the first direction to reduce intensity of the magnetic field generated at the first section.

Abstract: A method for displaying a virtual space at various point-in-times is provided, which is performed by one or more processors and includes displaying a user's avatar on a current first virtual space, in response to receiving a first user input selecting a first graphical object associated with a movement between point-in-times, displaying a user interface including a plurality of point-in-time information associated with the first virtual space, receiving, from a user, a selection of a first point-in-time from among the plurality of point-in-time information, and playing back a first event associated with the first virtual space recorded at the first point-in-time.

Abstract: A direction change valve failure prediction system includes: a data obtainer, degradation index value calculator, and a determiner. The obtainer is configured to repeatedly detect operation times of direction change valves over an equipment operation elapsed time to obtain operation time data of each valve. The valves are configured to communicate with a cylinder including a piston rod to change a direction a working fluid is supplied to the cylinder to change rod operation direction. The calculator is configured to calculate degradation index values of statistical degradation indexes representing a failure of the valves based on the time data. The determiner is configured to sequence the index values calculated for the valves according to size, to give scores to valves of higher values within or beyond a predetermined range among the sequenced index values, and to determine a valve expected to fail based on the score sum.

Abstract: Present embodiment relates to a method for manufacturing a circuit board, and more specifically, to a technique for solving problems that may arise due to etching by injecting epoxy or silicon or inserting a metal block into a gap formed between two or more ceramic substrates.

Abstract: A semiconductor nanoparticle, a method of manufacturing the semiconductor nanoparticle, and an electronic device including the nanoparticle are provided. The semiconductor nanoparticle includes silver, indium, gallium, and sulfur, wherein the semiconductor nanoparticle is configured to emit a green light, wherein the semiconductor nanoparticle has a relative mole value of zinc as defined by Equation 1 that is greater than or equal to about 0.25 and less than or equal to about 0.9: Relative ? mole ? value ? of ? zinc = [ Zn ] / ( [ Ag ] + [ In ] + [ Ga ] + [ Zn ] ) Equation ? 1 wherein, in Equation 1, [Ag], [In], [Ga], and [Zn] are molar amounts of the silver, the indium, the gallium, and the zinc in the semiconductor nanoparticle, respectively, and wherein a mole ratio of gallium to indium is greater than about 2.5:1 and less than about 5.6:1.

Abstract: A semiconductor nanoparticle including a first semiconductor nanocrystal including silver, indium, gallium, and sulfur, and a semiconductor nanoparticle including a second semiconductor nanocrystal including zinc, gallium, and sulfur, a method of manufacturing the same, and an electronic device including the same. The semiconductor nanoparticle is configured to emit a green light. The green light has a peak emission wavelength of about 500 nanometers to about 580 nanometers. In the semiconductor nanoparticle, a molar ratio of zinc to indium is about 0.1:1 to about 10:1.

Abstract: A method of manufacturing a semiconductor nanoparticle, the semiconductor nanoparticle manufactured therefrom, and an electronic device including the semiconductor nanoparticle. The method of manufacturing the semiconductor nanoparticle includes combining a first semiconductor nanocrystal that includes silver, a Group 13 element, and a chalcogen element, with a gallium precursor, a sulfur precursor, and a silver compound in a medium including an organic solvent; and heating the medium to a reaction temperature to obtain a crude solution including the semiconductor nanoparticles. The semiconductor nanoparticle includes silver, indium, gallium, and sulfur, and the size is greater than or equal to about 2 nm and less than or equal to about 50 nm.

Abstract: The present invention relates to an electrically driven crawler-type vehicle platform for farm working, which can transmit large driving force to the left and right of a track by placing a battery pack and connecting each of an electric powered actuator and an hydraulic actuator to wheels and a three-point hitch, and enables easy control of the three-point hitch for attachment of a rear working machine, the platform comprising: a battery pack (100) for supplying power to a crawler-type vehicle for farm working; a wheel driving unit (200) for driving a wheel by the power received from the battery pack (100); and three-point hitch driving unit 300 for driving the three-point hitch by the power received from the battery pack (110).

Abstract: The present disclosure provides a communication method comprising registering a public key for a vehicle, generating a pseudonym ID, transmitting the pseudonym ID, verifying whether the vehicle is registered, and storing a first transaction. Registration of the public key for the vehicle comprises receiving a service with a service provider. The pseudonym ID is generated based on the public key. The pseudonym ID and vehicle data are transmitted to a road side unit. Verification as to whether the vehicle is registered with the service provider is performed based on the transmitted pseudonym ID. A transaction including the pseudonym ID and the vehicle data is then stored in a database of the service provider according to a result of the verification.

Abstract: The jig for welding according to the present invention relates to a jig for welding, which is used in a welding process during manufacturing of a secondary battery, and includes a body part, and a protrusion that extends from a surface of the body part, has a size corresponding to an opening of the secondary battery, and is inserted into the opening of the secondary battery in the welding process, wherein a welding hole through which a laser is configured to pass is defined in each of a circumferential portion of the protrusion and a region of the body part which corresponds to a circumferential portion of the protrusion, wherein the protrusion includes a pressing portion that is provided in a peripheral part of the welding hole and presses an object to be welded in the secondary battery.

Abstract: A display device according to an embodiment includes a display panel and a cover window disposed at a front of the display panel and including a front part and a side part that surrounds the front part and is at least partially curved, the cover window includes the front part and a second part including at least a portion of the side part, and the first part and the second part are directly bonded, and the first part has a greater hardness than the second part.

Abstract: Disclosed are a method and device for managing a project by using cost payment time point settings. A project is efficiently operated by dividing a project based on a minimum unit task and designing a plurality of child projects connected in sequential order such that a plurality of child projects proceed in order.

Abstract: A variety of applications can include an apparatus having a device including line contacts to closely-spaced conductive signal lines structured such that a sufficient margin for shorts between a signal line and a line contact to a directly adjacent signal line is maintained even with a misalignment of the line contact. In an embodiment, formation of a memory device can include forming a line contact on and contacting an access line for an array of memory cells, using a two stage removal procedure of different removal processes. The two stage removal procedure can include removing a portion of processing layers above an insulating protective layer positioned on the access line and selectively removing the insulating protective layer, exposing a portion of the access line, without removing material of the access line. The line contact can be formed on and contacting the top exposed portion of the access line.

Abstract: Disclosed is a rechargeable battery including: an electrode assembly wound with a separator between a first electrode and a second electrode; a first exterior material including an opening receiving the electrode assembly and facing a bottom side of the electrode assembly; a second exterior material covering the opening, and combined to the first exterior material to seal an internal side of the first exterior material; and a reinforcing member having greater rigidity than the first exterior material and the second exterior material, disposed between the electrode assembly and the first exterior material, and including a side wall for surrounding a lateral side of the electrode assembly.

Abstract: An apparatus for manufacturing a glass article includes a chamber defining an inner space that accommodates a molten salt for molding and chemical strengthening the glass article, a first electrode disposed in the inner space of the chamber and in contact with the molten salt, a second electrode disposed in the inner space of the chamber, in contact with the molten salt, and facing the first electrode, and a power supply connected to the first electrode and the second electrode.

Abstract: A method for fabricating a semiconductor device includes loading a substrate into a lower region in a chamber separated by a shower head into the lower region and an upper region, supplying a source gas to the upper region, generating plasma including ions and radicals in the upper region, using a magnetic field and an electric field generated from an antenna on the upper region, and the source gas, supplying the ions and the radicals generated in the upper region into the lower region through a plurality of plasma inlet holes formed to penetrate the shower head in a vertical direction, supplying a process gas into the lower region through a plurality of process gas supply holes formed in the shower head, and forming a deposition film on the substrate inside the lower region, using the ions, the radicals and the process gas.

Abstract: An organic light diode (OLED) and an organic light emitting device comprising the OLED (e.g., a display device or a lighting device) are described. The OLED can comprise at least one emitting material layer including a first compound where an alkyl group is substituted to a specific position of an electron donor moiety and a second compound of a boron-based fluorescent material. Luminous properties in the OLED and the device can be improved as excitons generated at the first compound are transferred efficiently to the second compound.

Abstract: A semiconductor package includes a first substrate. Solder balls are disposed on a lower surface of the first substrate. A first semiconductor chip is on an upper surface of the first substrate. The solder balls include a first ball disposed in a first direction from a center of the first substrate and spaced apart from the center by a first distance. A second ball is disposed in a third direction from the center between the first and second directions and is spaced apart from the center by a second distance less than or equal to the first distance. A first pitch between the first ball and a first adjacent ball disposed immediately to an outer side in the first direction is less than a second pitch between the first ball and a second adjacent ball disposed immediately adjacent to an inner side in the first direction.