Abstract: Provided is a photosensitive resin composition including a reactive unsaturated compound, an alkali soluble resin, an initiator, and a pigment. The reactive unsaturated compound is selected to cause the composition to exhibit high-resolution pattern properties that facilitate forming a pixel defining film in a display device. The reactive unsaturated compound may be an acryl-based compound having at least three ethylenically unsaturated double bond groups in molecules and having a viscosity of about 200 mPa s to about 280 mPa s at 40° C. A display device including such pixel defining film is also presented.

Abstract: An anti-icing honeycomb core composite manufactured by forming an electromagnetic wave absorption layer by using dielectric fiber, molding the electromagnetic wave absorption layer into a honeycomb core structure by using a molded part including a first base, a second base, and an inner block, hardening the honeycomb core structure, and removing the molded part. The molding step includes first stacking, on the first base including a plurality of grooves in which the inner blocks each having a hexagonal column shape are able to be seated, a plurality of the inner blocks and a plurality of the electromagnetic wave absorption layers as the honeycomb core structure so that the electromagnetic wave absorption layer is disposed between the plurality of inner blocks, and second stacking covering the inner blocks and the electromagnetic wave absorption layers stacked on the first base with the second base having the same shape as the first base.

Abstract: A PCB assembly includes a panel including at least one guide protrusion, at least one mounting portion, and at least one dislocation prevention protrusion, and a PCB including at least one guide hole formed to correspond to the at least one guide protrusion, at least one grounding portion formed to correspond to the at least one mounting portion, and at least one dislocation prevention hole formed to correspond to the at least one dislocation prevention protrusion, wherein the PCB is guided to slide by the at least one guide protrusion and the at least one guide hole, is brought into close contact with the panel by the at least one mounting portion and the at least one grounding portion, and fixed to the panel as the at least one dislocation prevention hole is supported by the at least one dislocation prevention protrusion.

Abstract: A PCB assembly includes a panel including at least one guide protrusion, at least one mounting portion, and at least one dislocation prevention protrusion, and a PCB including at least one guide hole formed to correspond to the at least one guide protrusion, at least one grounding portion formed to correspond to the at least one mounting portion, and at least one dislocation prevention hole formed to correspond to the at least one dislocation prevention protrusion, wherein the PCB is guided to slide by the at least one guide protrusion and the at least one guide hole, is brought into close contact with the panel by the at least one mounting portion and the at least one grounding portion, and fixed to the panel as the at least one dislocation prevention hole is supported by the at least one dislocation prevention protrusion.

Abstract: A method and system for predicting a cryptocurrency price using artificial intelligence. The cryptocurrency price prediction method includes the steps of: receiving information on each cryptocurrency from a cryptocurrency exchange server through an API and extracting a plurality of price data, by a data extraction unit; processing and storing the extracted price data in a storage unit, by a data refinement unit; creating a dataset configured of a mean and a standard deviation of each cryptocurrency, by a dataset construction unit; and creating a model using a dataset read function of each cryptocurrency, by a modeling unit.

Abstract: In accordance with an embodiment of the present invention, there is provided a circulation method of a test tray in a test handler, the method comprising: in case of a first mode of test of temperature condition, firstly circulating the test tray along a first circulation path; and in case of a second mode of test of temperature condition different from the first mode, secondly circulating the test tray along a second circulation path, wherein the first circulation path and the second circulation path are different from each other in the transfer direction of the test tray at least in some sections.

Abstract: In accordance with an embodiment of the present invention, there is provided a circulation method of a test tray in a test handler, the method comprising: in case of a first mode of test of temperature condition, firstly circulating the test tray along a first circulation path; and in case of a second mode of test of temperature condition different from the first mode, secondly circulating the test tray along a second circulation path, wherein the first circulation path and the second circulation path are different from each other in the transfer direction of the test tray at least in some sections.

Abstract: A system and method is disclosed that transfers carrier boards in a handler that supports the testing of electronic devices. A carrier board can be transferred from the transfer start position to one of the mid transfer positions and the transfer final position. Carrier boards, which are spaced apart from each other in a chamber, can be gathered adjacent to each other in the circulation direction of carrier board. The transfer speed and the total circulation speed of the carrier boards can be enhanced. The transfer speed of carrier board can be easily controlled according to the test conditions.

Abstract: A system and method is disclosed that transfers carrier boards in a handler that supports the testing of electronic devices. A carrier board can be transferred from the transfer start position to one of the mid transfer positions and the transfer final position. Carrier boards, which are spaced apart from each other in a chamber, can be gathered adjacent to each other in the circulation direction of carrier board. The transfer speed and the total circulation speed of the carrier boards can be enhanced. The transfer speed of carrier board can be easily controlled according to the test conditions.

Abstract: A fuel cell system having no fuel pump, including: an electric generator to generate electricity by electrochemical reaction between hydrogen-containing fuel and an oxidant; and a fuel feeder including a fuel tank in which the hydrogen-containing fuel to be supplied to the electric generator is stored, wherein the fuel feeder includes a gas pressure applying unit provided between the electric generator and the fuel tank and adapted to recover gas produced in the electrochemical reaction and apply the recovered gas to the fuel tank and drive the fuel into the electric generator. With this configuration, the gas, such as carbon dioxide, produced by the electrochemical reaction between hydrogen and oxygen is supplied to the fuel tank without requiring a fuel pump, so the hydrogen-containing fuel is smoothly supplied and thereby enhances the fuel cell's efficiency in generating power.

Abstract: A bipolar plate and a fuel cell stack using the same. The bipolar plate used in the fuel cell stack includes: a first plate having a fuel flow passage; and a second plate having an oxidant flow passage and a land, the land being on the second plate and formed to be partially opposite to the fuel flow passage. Further, the fuel cell stack includes: a polymer electrolyte membrane; an anode electrode and a cathode electrode respectively placed on opposite sides of the polymer electrolyte membrane; a first plate placed on the anode electrode, and having a fuel flow passage; and a second plate placed on the cathode electrode, and having an oxidant flow passage and a land, the land being on the second plate and formed to be partially opposite to the fuel flow passage.

Abstract: An injection nozzle assembly for a fuel cell system, the injection nozzle assembly including a housing defining a fuel chamber to accommodate hydrogen-containing fuel therein and coated with a reforming catalytic layer. An inlet is provided in a first side of the housing to introduce the hydrogen-containing fuel in the fuel chamber and an outlet is provided in a second side of the housing to discharge the hydrogen-containing fuel from the fuel chamber. An injection means is provided in the fuel chamber so that noise, vibration and power consumption due to operation of a fuel pump are reduced, and transformation efficiency for producing hydrogen ions and electrons from the hydrogen-containing fuel is increased.