Abstract: A sandwich panel for an automobile includes a core layer, a surface layer, and an adhesive layer. The core layer includes glass fibers and thermoplastic resins and defines an optimal weight and thickness to provide flexural performance and non-flammability. The sandwich panel provides a flame barrier layer, which is a non-combustible layer during ignition and prevents flame from leaking to the outside of the panel.

Abstract: A semiconductor memory device includes a first stacked structure, a first supporter layer, a second stacked structure, a block cut structure, and a second supporter layer on the second stacked structure and separated by a second cut pattern. The first stacked structure includes a first and second stack, the second stacked structure includes a third stack separated by the block cut structure and a fourth stack, the first supporter layer is on the first stack and the second stack, the second supporter layer is on the third stack and the fourth stack, the first cut pattern includes a first connection on the block cut structure and connecting the first supporter layer and the second stack, and the second cut pattern of the second supporter layer includes a second connection on the block cut structure and connecting the second supporter layer placed on the third stack and the fourth stack.

Abstract: There is provided a nonvolatile memory device having improved crack detection reliability. The nonvolatile memory device comprises word lines that extend in a first direction, cell contact plugs that are electrically connected to the word lines and extend in a second direction intersecting the first direction, a net crack detection circuit that is on the word lines and is not in contact with the word lines, and a ring crack detection circuit that is on the word lines and is not in contact with the word lines, wherein the net crack detection circuit is electrically connected to a crack detection transistor in a peripheral circuit region, the ring crack detection circuit includes a first crack detection metal wiring that extends in a third direction intersecting the first direction and the second direction, and a second crack detection metal wiring that extends in the third direction.

Abstract: A display apparatus having a mura compensation function includes a mura memory in which compensation data corresponding to coefficient values of a mura compensation equation is stored; and a mura compensation circuit configured to perform mura compensations on display data by using the mura compensation equation to which the compensation data has been applied, wherein the coefficient values are set so that the mura compensation equation has been fit to have a curve that satisfies known difference values of selected gray levels, a first estimation difference value of a first estimation gray level higher than the selected gray levels, and a second estimation difference value of a second estimation gray level lower than the selected gray levels, and wherein the compensation data comprises the coefficient values of the mura compensation equation in which all of the known difference values of the selected gray levels, the first estimation difference value, and the second estimation difference value have a differen

Abstract: Octacalcium phosphate according an embodiment is prepared by a process including preparing a calcium phosphate solution, controlling an initial pH by controlling a pH of the calcium phosphate solution to a range from 5 to 6 using an acidic solution, heating the calcium phosphate solution of which the initial pH is controlled to a temperature ranging from 60° C. to 90° C., adding a heterogeneous seed comprising at least one selected from among octacalcium phosphate and dicalcium phosphate dihydrate to the heated calcium phosphate solution, after adding the heterogeneous seed, adjusting a terminal pH by controlling the pH of the heated calcium phosphate solution to which the heterogeneous seed is added to a range from 5 to 6.

Abstract: The present invention relates to a method of quickly preparing a large amount of octacalcium phosphate and octacalcium phosphate prepared thereby. A method of preparing octacalcium phosphate according to an embodiment of the present invention includes preparing a calcium phosphate solution, controlling an initial pH by controlling a pH of the calcium phosphate solution to a range from 5 to 6 using an acidic solution at a time point at which the pH of the calcium phosphate solution increases, heating the calcium phosphate solution to a temperature ranging from 60° C. to 90° C., and controlling a terminal pH by controlling the pH of the calcium phosphate solution to a range from 5 to 6 using a basic solution at a time point at which the pH of the heated calcium phosphate solution decreases.

Abstract: A method of preparing an inorganic binder for medical use according to an embodiment of the present disclosure includes preparing a starting material using a-TCP powder and phosphate powder each of which has a predetermined particle size, producing a paste having a predetermined viscosity that is suitable for formation of a molded article having a predetermined shape by homogeneously mixing the starting material, adding water or saline to the homogeneously mixed starting material, and kneading the resulting mixture, subjecting the molded article to hydration reaction, and washing and drying the molded article having undergone the hydration reaction to obtain an inorganic binder containing OCP and HA crystal phases.

Abstract: The present invention relates to a method of quickly preparing a large amount of octacalcium phosphate and octacalcium phosphate prepared thereby. A method of preparing octacalcium phosphate according to an embodiment of the present invention includes preparing a calcium phosphate solution, controlling an initial pH by controlling a pH of the calcium phosphate solution to a range from 5 to 6 using an acidic solution at a time point at which the pH of the calcium phosphate solution increases, heating the calcium phosphate solution to a temperature ranging from 60° C. to 90° C., and controlling a terminal pH by controlling the pH of the calcium phosphate solution to a range from 5 to 6 using a basic solution at a time point at which the pH of the heated calcium phosphate solution decreases.

Abstract: An intake apparatus for an engine is provided. The intake apparatus includes an intake manifold configured to draw intake air thereinto, a cylinder head having an intake port through which intake air drawn from the intake manifold is supplied into a cylinder of the engine and a flow control valve disposed in the intake manifold and configured to control a flow direction of intake air to be drawn from the intake manifold into the cylinder head to generate a circular flow in the intake air. A port plate is configured to reinforce the circular flow of intake air that is generated in the flow control valve and a plate support is coupled with the port plate and coupled between the intake manifold and the cylinder head to enable the port plate to be inserted into the intake port.

Abstract: An intake apparatus for an engine is provided. The intake apparatus includes an intake manifold configured to draw intake air thereinto, a cylinder head having an intake port through which intake air drawn from the intake manifold is supplied into a cylinder of the engine and a flow control valve disposed in the intake manifold and configured to control a flow direction of intake air to be drawn from the intake manifold into the cylinder head to generate a circular flow in the intake air. A port plate is configured to reinforce the circular flow of intake air that is generated in the flow control valve and a plate support is coupled with the port plate and coupled between the intake manifold and the cylinder head to enable the port plate to be inserted into the intake port.

Abstract: The present invention relates to a composition for dental impression treatment material and preparation thereof for the purpose of obtaining the superior impression in restoration treatment for dental prosthesis, and for the gingival retraction from the teeth, gingival oozing inhibition and stanching. The composition preferably comprises 67.70 to 71.85% by weight of kaolin clay, 16.05 to 20.00% by weight of distilled water, 10.83 to 11.50% by weight of aluminum chloride hexahydrate, 0.14 to 1.02% by weight of starch powder, 0.42 to 0.43% by weight of silicone oil, 0.03% by weight of coloring agent.

Abstract: The present invention relates to an upright vacuum cleaner. An upright vacuum cleaner according to the present invention includes a main body for housing a suction power generating device for sucking air and a filtering device for filtering out foreign substances contained in the sucked air. A suction nozzle is pivotably connected to a lower portion of the main body for sucking the air containing the foreign substances and then guiding the sucked air into the main body. A handle is installed at the top of the main body and is designed to be gripped by a user in use. The potentiometer, or some other device for controlling the electric current applied to the suction power generating device, is installed at one side surface of the handle. The potentiometer allows the user to control a suction power level and on/off operations of the vacuum cleaner by means of a sliding manipulation. Further, the potentiometer is preferably installed at a front surface of the handle.

Abstract: The present invention relates to an upright vacuum cleaner. The upright vacuum cleaner according to the present invention comprises a main body for housing a suction power generating means for sucking air and a filtering means for filtering out foreign substances contained in the sucked air; a suction nozzle pivotably connected to a lower portion of the main body for sucking the air containing the foreign substances and then guiding the sucked air into the main body; a handle installed at the top of the main body and gripped by a user in use; and a potential meter installed at one side surface of the handle and capable of controlling a suction power level and on/off operations of the vacuum cleaner by means of a sliding manipulation. Further, the potential meter is preferably installed at a front surface of the handle.