Abstract: In a driving system, first and second inverters are connected to a driving motor, one end of a stator winding through which 3-phase current flows is connected to an output line of the first inverter, and the other end of the stator winding is connected to an output line of the second inverter. A winding pattern of the driving motor includes: coils wound in slots defined in the stator and to which 3-phase current is applied; coils wound on innermost and outermost sides based on a direction toward a rotating shaft of the driving motor in the slots, and being energized by different AC phases; and coils disposed between a first coil located on the outermost side and a second coil located on the innermost side, and being energized by the same AC phases as those of the first and second coils.

Abstract: A radio frequency (RF) weak magnetic field detection sensor includes a ferromagnetic core, a pickup coil disposed to surround the ferromagnetic core, a substrate that includes an opening, a core pad connected to the ferromagnetic core and a coil pad connected to the pickup coil, and an insulating tube interposed between the ferromagnetic core and the pickup coil. The insulating tube includes a bobbin around which the pickup coil is wound, and a core hole formed to pass through the bobbin and configured to accommodate the ferromagnetic core.

Abstract: An apparatus and method for transmitting and receiving magnetic field signals in a magnetic field communication system are provided. The apparatus includes a controller configured to generate a communication signal, matching units that are configured to receive the communication signal and that respectively correspond to different matching frequencies, and loop antennas that are connected to the matching units, respectively, and that are configured to convert communication signals according to the different matching frequencies into magnetic transmission signals in the form of magnetic field energy and to transmit the magnetic transmission signals.

Abstract: The present invention relates to a polar functional group-partially introduced polymer, a preparation method therefor, and an organic electronic element adopting the same. The organic electronic element of the present invention has excellent photoelectric conversion efficiency and stability and is very advantageous in commercialization, by adopting the polar functional group-partially introduced polymer of the present invention.

Abstract: The present invention relates to a polar functional group-partially introduced polymer, a preparation method therefor, and an organic electronic element adopting the same. The organic electronic element of the present invention has excellent photoelectric conversion efficiency and stability and is very advantageous in commercialization, by adopting the polar functional group-partially introduced polymer of the present invention.

Abstract: Provided are a novel organic semiconductor compound, a production method thereof, and an organic electronic device using the same, wherein the organic semiconductor compound includes a thiazolidine functional group introduced into a heteroaromatic ring to thereby remarkably improve photovoltaic characteristics of an organic electronic device including the same.

Abstract: Provided are a novel organic semiconductor compound, a production method thereof, and an organic electronic device using the same, wherein the organic semiconductor compound includes a thiazolidine functional group introduced into a heteroaromatic ring to thereby remarkably improve photovoltaic characteristics of an organic electronic device including the same.

Abstract: An X-ray photography device capable of readily photographing by switching to various photography modes such as a standing mode, a table mode and the like with one X-ray photography device is disclosed. To this end, the X-ray photographing device comprises: a base frame; a support frame pivotably coupled to one side of the base frame through a hinge shaft and on one side of which an X-ray detector for detecting X-rays irradiated from an X-ray generation device is slidably provided; and an actuator of which one end is rotatably fixed to the base frame and of which the other end is rotatably fixed to the support frame spaced at a predetermined distance from the hinge shaft, and which pivots the support frame around the hinge shaft within a predetermined angle range while moving a driving shaft therein forward and backward by pneumatic or hydraulic pressure supplied from the outside.

Abstract: Provided are a mixed metal halide perovskite compound, and an electronic device including the same, wherein the mixed metal halide perovskite compound includes an organic cation, two or more kinds of metal cations, and a halogen anion.

Abstract: Provided are a novel polymer, a method of preparing the same, and an organic semiconductor device including the same. According to the present invention, the fluorine content-controlled polymer is employed in an organic active layer, thereby providing an organic optoelectric device representing improved power conversion efficiency (PCE).

Abstract: Provided is an apparatus for manufacturing a semiconductor or metal oxide ingot by sequentially inducing a liquid-to-solid phase transition of a liquid raw material following a solidification direction, the apparatus including: a crucible containing a semiconductor or metal oxide raw material; a cooling unit spaced apart from the crucible at a predetermined distance in a vertical direction, when a height direction of the crucible is designated by the vertical direction and a direction perpendicular to the vertical direction is designated by a horizontal direction; a first heating unit spaced apart from the crucible at a predetermined distance in the horizontal direction and surrounding a circumferential surface of the crucible; and an insulating member provided between the crucible and the cooling unit in the horizontal direction, a position of the insulating member being shifted by a shifting unit.

Abstract: Provided are a mixed metal halide perovskite compound, and an electronic device including the same, wherein the mixed metal halide perovskite compound includes an organic cation, two or more kinds of metal cations, and a halogen anion.

Abstract: An X-ray photography device capable of readily photographing by switching to various photography modes such as a standing mode, a table mode and the like with one X-ray photography device is disclosed. To this end, the X-ray photographing device comprises: a base frame; a support frame pivotably coupled to one side of the base frame through a hinge shaft and on one side of which an X-ray detector for detecting X-rays irradiated from an X-ray generation device is slidably provided; and an actuator of which one end is rotatably fixed to the base frame and of which the other end is rotatably fixed to the support frame spaced at a predetermined distance from the hinge shaft, and which pivots the support frame around the hinge shaft within a predetermined angle range while moving a driving shaft therein forward and backward by pneumatic or hydraulic pressure supplied from the outside.

Abstract: The present invention relates to a high-output apparatus for manufacturing a polycrystal silicon ingot for a solar cell, and more particularly, to an apparatus for manufacturing a polycrystal silicon ingot by means of heating and melting raw silicon in a vacuum chamber, and then cooling the molten silicon, wherein the apparatus comprises: a plurality of crucibles arranged so as to be horizontally separated from one another within the vacuum chamber, and in each of which raw silicon is filled for manufacturing polycrystal silicon ingots; heating means provided at the outside of each of the crucibles so as to heat each crucible and melt the raw silicon filled therein; and cooling means for cooling the crucibles, so as to enable the silicon melted by the heating means to be cooled in one direction and be formed into polycrystal ingots.

Abstract: Provided are an organic semiconductor compound, a method for preparing same, a polymer compound having the organic semiconductor compound of the present invention as a monomer, and an organic semiconductor device containing the polymer compound. Said organic semiconductor compound has side chains in the chemical structure thereof, and is highly soluble in a solvent, and therefore the organic semiconductor compound can be effectively used in solution-based processes. The organic semiconductor device containing the polymer compound according to the present invention yields high manufacturing efficiency.

Abstract: The present invention relates to a pyrene-containing conductive polymer represented by formula 1 and an organic solar cell comprising the same as an organic photovoltaic material. The conductive polymer has improved hole mobility as a result of introducing a specific amount of pyrene either into a polymer, which consists only of a donor functional group comprising one or more aromatic monomers, or into a donor-acceptor type polymer comprising a repeating acceptor introduced into a donor functional group. Thus, the conductive polymer can be used as an organic photovoltaic material in organic photodiodes (OPDs), organic light-emitting diodes (OLEDs), organic thin-film transistors (OTFTs), organic solar cells and the like. In addition, an organic solar cell showing high power conversion efficiency (PCE) can be provided using an organic photovoltaic material comprising the pyrene-containing conductive polymer as an electron donor.

Abstract: Provided is an apparatus for manufacturing a semiconductor or metal oxide ingot by sequentially inducing a liquid-to-solid phase transition of a liquid raw material following a solidification direction, the apparatus including: a crucible containing a semiconductor or metal oxide raw material; a cooling unit spaced apart from the crucible at a predetermined distance in a vertical direction, when a height direction of the crucible is designated by the vertical direction and a direction perpendicular to the vertical direction is designated by a horizontal direction; a first heating unit spaced apart from the crucible at a predetermined distance in the horizontal direction and surrounding a circumferential surface of the crucible; and an insulating member provided between the crucible and the cooling unit in the horizontal direction, a position of the insulating member being shifted by a shifting unit.

Abstract: Provided are an organic semiconductor compound, a method for preparing same, a polymer compound having the organic semiconductor compound of the present invention as a monomer, and an organic semiconductor device containing the polymer compound. Said organic semiconductor compound has side chains in the chemical structure thereof, and is highly soluble in a solvent, and therefore the organic semiconductor compound can be effectively used in solution-based processes.

Abstract: The compounds of the present invention are represented by the following formula (I): wherein M is represented by the following formula: with R1, R2, R3, R4, R5, R6, R7, R8, R10, R11, X1, X2, X3, L, a, b, c, d, e, x, y, and z defined herein.

Abstract: The present invention relates to a 2,7-carbazole-containing polymer represented by formula 1 and an organic photovoltaic device comprising the conductive polymer as a photoelectric conversion material. The conductive polymer has high photon absorption efficiency and improved hole mobility and is prepared by introducing a specific amount of a carbazole compound either into a polymer, consisting only of a donor functional group containing one or more aromatic monomers, or into a donor-acceptor type polymer comprising a repeating acceptor group introduced into a donor functional group. The conductive polymer can be used as a photoelectric conversion material for organic thin film transistors (OTFTs) or organic light-emitting diodes (OLEDs). Furthermore, the invention provides an organic photovoltaic device comprising the carbazole-containing conductive polymer as an electron donor, and thus can achieve high photoelectric conversion efficiency in organic thin film solar cells.