Abstract: The present invention provides a transition metal compound, a catalyst composition comprising same, and a method for producing an olefin polymer using the catalyst composition. A transition metal compound having a specific functional group at a specific position, according to the present invention, has high solubility and catalytic activity, and thus a method for producing an olefin polymer by using said transition metal compound can produce an olefin polymer having excellent physical properties through a simple process.

Abstract: The present invention relates to a cryogenic chamber for impact testing, which comprises in one aspect a container having a sidewall formed by at least two layers and an upper side opened, wherein the sidewall includes a first sidewall and a second sidewall shaped to surround the first sidewall, the first sidewall partitions a first space in which a specimen may be arranged, the second space partitions a second space to perform thermal insulation treatment between the first sidewall and the second sidewall, the second space has a structure in which the upper side is closed, and a first cooling medium is continuously supplied to the second space, thereby blocking heat transfer between the first space and the outside, while a second cooling medium is continuously supplied to the first space, thereby cooling the specimen.

Abstract: Provided are a transition metal compound. a catalyst composition including the same, and a method for preparing an olefin polymer using the same. The transition metal compound of the present invention in which a specific functional group is introduced to a specific position has high solubility and catalytic activity. and in the method for preparing an olefin polymer using the transition metal compound. an olefin polymer having excellent physical properties may be easily prepared by a simple process.

Abstract: Embodiments relate to a Brillouin distributed optical fiber sensor including a first light source to output a first light having a modulated intensity at a preset frequency, an optical modulation unit to generate Brillouin probe light and Brillouin pump light using the first light and apply the Brillouin probe light and the Brillouin pump light to one end and the other end of a test optical fiber, respectively, a second light source to apply a second light with a frequency that is different from a frequency of the first light to one end of the test optical fiber in a direction opposite to the Brillouin pump light, and an optical detection unit to detect Brillouin scattered light generated by interaction between the Brillouin pump light and the Brillouin probe light in the test optical fiber.

Abstract: A material for hot stamping according to an embodiment of the present disclosure includes: a steel sheet including carbon (C) in an amount of 0.28 to 0.50 wt %, silicon (Si) in an amount of 0.15 to 0.70 wt %, manganese (Mn) in an amount of 0.5 to 2.0 wt %, phosphorus (P) in an amount of 0.05 wt % or less, sulfur(S) in an amount of 0.01 wt % or less, chromium (Cr) in an amount of 0.1 to 0.5 wt %, boron (B) in an amount of 0.001 to 0.005 wt %, an additive in an amount of 0.

Abstract: The present disclosure provides a material for hot stamping including: a steel sheet including carbon (C) in an amount of 0.19 to 0.25 wt %, silicon (Si) in an amount of 0.1 to 0.6 wt %, manganese (Mn) in an amount of 0.8 to 1.6 wt %, phosphorus (P) in an amount of 0.03 wt % or less, sulfur(S) in an amount of 0.015 wt % or less, chromium (Cr) in an amount of 0.1 to 0.6 wt %, boron (B) in an amount of 0.001 to 0.005 wt %, an additive in an amount of 0.

Abstract: A display device according to an embodiment of the present disclosure may comprise a double-sided display including a transparent display panel, a user interface configured to receive a control signal from a remote control device and a controller configured to determine which direction the remote control device is located on a front side or a rear side of the double-sided display, and perform an operation according to the received control signal according to the direction in which the remote control device is located based on a determination result.

Abstract: A method for processing an audio signal includes setting target loudness; receiving metadata of an audio signal from a server; and adjusting the loudness of the audio signal by using the received metadata, so that the loudness of the audio signal corresponds to the set target loudness.

Abstract: In cases of rendering a multichannel signal such as a 22.2 channel signal as a 5.1 channel signal, a three dimensional (3D) audio signal may be reproduced using a two dimensional (2D) output channel, but rendered audio signals are sensitively affected by a layout of speakers and may cause distortion of a sound image when the layout of arranged speakers is different from a standard layout. The present invention may solve the aforementioned problem of the prior art.

Abstract: In cases of rendering a multichannel signal such as a 22.2 channel signal as a 5.1 channel signal, a three dimensional (3D) audio signal may be reproduced using a two dimensional (2D) output channel, but rendered audio signals are sensitively affected by a layout of speakers and may cause distortion of a sound image when the layout of arranged speakers is different from a standard layout. The present invention may solve the aforementioned problem of the prior art.

Abstract: Disclosed is a benzazole derivative having a heteroaryl group, wherein the benzazole derivative having the heteroaryl group is represented by Chemical Formula 1. Also disclosed is an organic electroluminescence device including an organic layer containing the benzazole derivative having the heteroaryl group: wherein, each of Z1, X1, X2, X3, Ar1, Ar2, Ar3, m1, m2 and q is the same as defined in the specification.

Abstract: A method for removing ferric ions contained in a sulfate-based iron electroplating solution comprises a step of regeneration for reduction of the ferric ions by circulating a ferric ion-containing sulfate-based iron electroplating solution in a solution bath containing ferrous metal charged therein, wherein the ferrous metal is charged in an amount that satisfies the following formula (1): S?0.01 Iconv/Cmax (1). In formula (1), S indicates a total surface (m2) of ferrous metal, Cmax indicates a maximum permissible ion concentration level (g/L) of the ferric ions in the solution, and Iconv indicates, as represented by the following formula (2), converted current (A) obtained by dividing the sum of current (I) applied to an electroplated cell during the plating time (tp, sec) by the regeneration time (tr, sec) for reduction of the ferric ions in an electrolyte.

Abstract: The present invention relates to a solution for electroplating iron, comprising: iron ions comprising first iron ions and second iron ions; a complexing agent; and unavoidable impurities, wherein the amount of second iron ions among the iron ions is 5 to 60 wt %. According to the present invention, electroplating efficiency is high, there is no drop in electroplating efficiency due to a continuous plating operation, and sludge generation is prevented, and, thus, the plating solution is easily managed. Burning can be prevented even in a high current density operation, and, thus, a high-quality iron-plated layer can be achieved. The plating solution does not need to be replaced, as the concentration of second iron ions generated by a plating reaction is maintained to be constant, and, thus, the present invention is appropriate for a continuous plating process.

Abstract: Provided is a flexible organic electroluminescent device and a method for fabricating the same. In the flexible electroluminescent device, line hole patterns are formed on surfaces of a plurality of inorganic layers positioned in a pad region in which a flexible printed circuit board is connected to prevent a path of cracks caused by repeated bending and spreading of the organic electroluminescent device from spreading to the interior of the device.

Abstract: A method of processing an audio signal includes receiving an audio bitstream encoded via MPEG Surround 212 (MPS212); generating an internal channel (IC) signal for a single channel pair element (CPE), based on the received audio bitstream, equalization (EQ) values for MPS212 output channels defined in a format converter, and gain values for the MPS212 output channels; and generating stereo output channels, based on the generated IC signal.

Abstract: A method of reproducing a multi-channel audio signal including an elevation sound signal in a horizontal layout environment is provided, thereby obtaining a rendering parameter according to a rendering type and configuring a down-mix matrix, and thus effective rendering performance may be obtained with respect to an audio signal that is not suitable for applying virtual rendering. A method of rendering an audio signal includes receiving a multi-channel signal includes a plurality of input channels to be converted into a plurality of output channels; determining a rendering type for elevation rendering based on a parameter determined from a characteristic of the multi-channel signal; and rendering at least one height input channel according to the determined rendering type, wherein the parameter is included in a bitstream of the multi-channel signal.

Abstract: Provided are an ethylene polymer mixture, a method of preparing the same, and a molded article using the same. More specifically, an ethylene polymer mixture in which two ethylene polymers having different densities are mixed, a method of preparing the same, and a molded article having a low haze and a low heat sealing temperature using the ethylene polymer mixture, are provided.

Abstract: Provided are a methane-selective composite membrane comprising: a UiO-66 type organic-inorganic composite nanoporous material, a MIL-100 type organic-inorganic composite nanoporous material, or a ZIF-8 type organic-inorganic composite nanoporous material to which a methane-selective functional group is introduced for selectively separating methane from a gas mixture containing methane/nitrogen, a use thereof, and a method of preparing the same.

Abstract: An electronic device and method for measuring user body information are provided. The method for measuring user body information includes detecting a contact of a user's body portion on at least two spots of a touch screen of the electronic device, upon detecting the contact of the user's body portion on the at least two spots of the touch screen, applying power to a first coil in the electronic device, and measuring the user body information using at least one of a voltage and a second current measured after a first current is induced across the user's body by a first magnetic field generated from the first coil as the power is applied.

Abstract: There is provided a method of providing information about prognosis after cardiac arrest. The method includes the steps of: calculating biological information based on a signal relating to a hemoglobin concentration measured from a cerebral region of a subject to be measured; and providing the information about the prognosis after cardiac arrest of the subject with reference to the calculated biological information and a biomarker relating to the prognosis after cardiac arrest measured from a blood of the subject.