Abstract: A mold device includes: an outer mold part including a first outer mold, and a second outer mold that is moved toward the first outer mold to form a molding space with the first outer mold; and an inner mold part including an inner mold that is moved between a molding position disposed in the molding space of the outer mold part and an exit position deviating from the molding space. The inner mold is configured to mold a cylinder having a hollow part extending in a first direction between the inner mold part and the outer mold part when being located in the molding position. The inner mold is formed to correspond to the cylinder to form a space allowing introduction of a resin.

Abstract: The present disclosure provides an injection molding apparatus including a first mold, a second mold configured to be relatively movable toward or away from the first mold and define a cavity for forming a molded body collectively with the first mold, a stripper provided between the first mold and the second mold and configured to separate the molded body from the first mold, a first cotter block provided on the stripper, and a second cotter block provided on the second mold, configured to be rollable relative to the first cotter block, and configured to align the second mold with the first mold collectively with the first cotter block, thereby obtaining an advantageous effect of reducing a defect rate related to the molded body and improving quality and productivity.

Abstract: A forced discharge apparatus for a high-voltage component may include a component unit connected to a power supply unit through a connector. The forced discharge apparatus may also include a forced discharge circuit connected between the power supply unit and the component unit. The forced discharge apparatus may also include a control unit configured to discharge the component unit through the forced discharge circuit such that a voltage of the component unit becomes below a target voltage in response to a detection that a back electromotive force generated from the component unit when the connector is separated.

Abstract: Disclosed is an all-solid-state battery including an anode layer that expands and accommodates lithium metal during charging, and a method of operation thereof. The all-solid battery includes an anode current collector, an anode layer disposed on the anode current collector, a solid electrolyte layer disposed on the anode layer, a cathode active material layer disposed on the solid electrolyte layer, and a cathode current collector disposed on the cathode active material layer. The anode layer comprises particles comprising a metal capable of allying with lithium and interparticular pores.

Abstract: A method for preparing a UO2 mixture powder for nuclear fuel manufacturing, comprises the steps of: (a) weighing and sieving, by means of an automatic injection device, a UO2 powder, a porogen and a lubricant, and injecting same into a UC container; and (b) mixing the UO2 powder, the porogen and the lubricant by means of an IBC blender. According to a method for preparing a UO2 mixture powder for nuclear fuel manufacturing, mixing time is short, and degrees of mixing and homogeneity of a prepared UO2 mixture powder are excellent.

Abstract: The present invention provides a method of controlling an unmanned aerial vehicle by a system for controlling a mission of the unmanned aerial vehicle on the basis of a user position. Herein the method includes acquiring information related to a position of the terminal; performing authentication for the unmanned aerial vehicle on the basis of the information related to the position of the terminal; and, when the authentication is completed, transmitting the information related to the position of the terminal to the unmanned aerial vehicle.

Abstract: Disclosed is a device for testing airtightness of a fuel cell stack. The device for testing airtightness of a fuel cell stack including a first reaction gas inflow portion and a first reaction gas outflow portion which a first reaction gas flows in or out, respectively, and a second reaction gas inflow portion and a second reaction gas outflow portion which a second reaction gas flows in and out, respectively, includes i) a detection gas supplier supplying a detection gas to the first reaction gas inflow portion, ii) an intake installed to be movable in a sequential stacking direction of fuel cells in the second reaction gas outflow portion, iii) a detection gas concentration detector intaking a detection gas through the intake and detecting a concentration of the detection gas, and iv) a controller determining an airtightness-defective cell based on a position of the intake by analyzing the detected concentration value of the detection gas detected by the detection gas concentration detector.

Abstract: Disclosed is a device for testing airtightness of a fuel cell stack. The device for testing airtightness of a fuel cell stack including a first reaction gas inflow portion and a first reaction gas outflow portion which a first reaction gas flows in or out, respectively, and a second reaction gas inflow portion and a second reaction gas outflow portion which a second reaction gas flows in and out, respectively, includes i) a detection gas supplier supplying a detection gas to the first reaction gas inflow portion, ii) an intake installed to be movable in a sequential stacking direction of fuel cells in the second reaction gas outflow portion, iii) a detection gas concentration detector intaking a detection gas through the intake and detecting a concentration of the detection gas, and iv) a controller determining an airtightness-defective cell based on a position of the intake by analyzing the detected concentration value of the detection gas detected by the detection gas concentration detector.

Abstract: The multi-rotor type unmanned aerial vehicle includes: a main body including the battery module and the control module; a plurality of frames connected to a side surface of the main body and extending therefrom; a first motor connected to a distal end of each of the frames; and a drive unit connected to the first motor, wherein the drive unit includes a rotary frame and a stationary frame each having a circular shape and connected to each other in the form of a gyroscope, a second motor supported at the center of the rotatable frame, and a propeller connected to the second motor, and a vector of thrust generated by rotation of the propeller is variable according to rotation of the first and second motors.