Abstract: The present invention relates to a nanoscreen for regulating stem cell adhesion and differentiation. Moreover, the present invention relates to a method of regulating stem cell adhesion and differentiation using the nanoscreen. According to the nanoscreen of the present invention and the method of regulating stem cell adhesion and differentiation using the same, it is possible to efficiently regulate stem cell adhesion and differentiation by applying a magnetic field to the nanoscreen.

Abstract: The present invention relates to a nanobarrier for regulating macrophage adhesion and polarization. Moreover, the present invention relates to a method of regulating macrophage adhesion and polarization using the nanobarrier. According to the nanobarrier of the present invention and the method of regulating macrophage adhesion and polarization using the same, it is possible to efficiently regulate macrophage adhesion and polarization by applying a magnetic field to the nanobarrier.

Abstract: A method for manufacturing a transition metal-dichalcogenide thin film is provided. The method for manufacturing a transition metal-dichalcogenide thin film can comprise the steps of: preparing a base substrate within a chamber; preparing a precursor comprising a transition metal; repeatedly carrying out, multiple times, a step of providing the precursor on the base substrate and a step of purging the chamber, thereby forming, on the base substrate, a preliminary thin film in which the precursor is adsorbed; and manufacturing a transition metal-dichalcogenide thin film by heat treating the preliminary thin film in a gas atmosphere comprising a chalcogen element.

Abstract: Provided is a photocathode structure including: a photocathode including silicon (Si); an intermediate layer formed on the photocathode, and including a silicon oxide (SiOx); and a protective layer foiled on the intermediate layer, and including a metal oxide, wherein the intermediate layer is a tunneling barrier configured to transfer charges from the photocathode to the protective layer by an electric field applied from an outside.

Abstract: Provided is an electronic device including a first lower material film, a first upper material film on the first lower material film, a first two-dimensional electron gas between the first lower material film and the first upper material film, a second lower material film on the first upper material film, a second upper material film on the second lower material film, a second two-dimensional electron gas between the second lower material film and the second upper material film, a source electrode on the second upper material film, a drain electrode on the second upper material film, a gate insulating film on the second upper material film, and a gate electrode on the gate insulating film.

Abstract: Provided is an electronic device including a lower material film, an upper material film on the lower material film, a two-dimensional electron gas between the lower material film and the upper material film, a source electrode on the upper material film, a drain electrode on the upper material film, and a gate electrode on the upper material film, wherein the upper material film includes a first portion in contact with the source electrode, a second portion in contact with the gate electrode, and a third portion in contact with the drain electrode, wherein a thickness of the second portion of the upper material film is greater than a thickness of the first portion of the upper material film and a thickness of the third portion of the upper material film, wherein the voltage drop and the threshold voltage are adjusted by adjusting the thicknesses of the first to third portions of the upper material film.

Abstract: A secondary battery is provided. The secondary battery comprises a positive electrode, a solid electrolyte, and a negative electrode, wherein: a stack structure comprising the positive electrode and the solid electrolyte stacked together is provided; the stack structure is bent to provide a bending region therebetween; and the negative electrode is provided within the bending region.

Abstract: Provided is a metal negative electrode. The metal negative electrode has a first surface and a second surface facing the first surface, and a plurality of grooves may be provided in the first surface.

Abstract: An electrode structure for a positive electrode of a metal-air battery is provided. The electrode structure for a positive electrode of a metal-air battery is formed of a compound of copper, phosphorus, and sulfur and it can comprise a membrane in which a plurality of fibrillated fibers form a network.

Abstract: A method for preparing a cathode active material is provided. The method for preparing a cathode active material can comprise the steps of: preparing a first metal oxide; preparing a second metal oxide having an oxygen ratio lower than that of the first metal oxide by heat treating the first metal oxide in a nitrogen-containing gas atmosphere; and preparing a lithium metal oxide by firing the second metal oxide and a lithium salt.

Abstract: The present invention relates to a vitamin E-based amphipathic compound, a method for producing same, and a method for extracting, solubilizing, stabilizing, or crystallizing a membrane protein using same. By using a compound according to the present invention, not only is an excellent membrane protein extraction and solubilization effect achieved, but the membrane protein can be stably stored for a long period of time in an aqueous solution, and thus the compound can be utilized in analyzing the function and structure of the membrane protein. Moreover, the vitamin E-based amphipathic compounds exhibited superb properties in the visualization of protein compounds through an electron microscope.

Abstract: The present invention relates to: a spectral leakage-based loopback method for a built-in self-test (BIST), achieving cost efficiency by accurately predicting the nonlinearity of a mixed-signal circuit in a loopback mode; and a system therefor, the method comprising the steps of: modeling a correlation by deriving the transfer function of a loopback path; generating a digitally synthesized single-tone sine wave input signal by means of an on-chip DSP core so as to sample same in a nonlinear DAC channel, and supplying a DAC output signal to a nonlinear ADC channel through an analog loopback path so as to measure each of the DAC channel and the ADC channel for a process test; and performing post-processing by means of the on-chip DSP core and predicting the harmonics of the two separate DAC and ADC channels.

Abstract: Disclosed is a gas sensor. The gas sensor comprises: a substrate; a thermoelectric layer which is disposed on the substrate and has a metal nanowire; a first electrode and a second electrode disposed to be spaced apart from each other on the thermoelectric layer; and a catalyst layer which is disposed on the first electrode and has a composite structure in which a metal particle is bonded to a carbon structure.

Abstract: Provided are an electrochemical catalyst and a preparation method therefor. The preparation method for an electrochemical catalyst may comprise the steps of preparing a base metal aqueous solution containing a base metal, hydrothermally synthesizing a base structure containing an oxide of the base metal by using the base metal aqueous solution, and using a heat treatment method for the base structure in a sulfur (S)-containing reactive gas atmosphere, exchanging oxygen (O) on the surface of the base structure with sulfur (S) of the reactive gas to form a catalyst structure which has a core structure containing the oxide of the base metal and a shell structure containing a sulfide of the base metal.

Abstract: Provided is a substrate deforming device for proximity exposure, the device comprising: a mask holder for holding an exposure mask; a first plate which is spaced apart from the exposure mask in a certain direction, and holds a to-be-exposed substrate; a position adjustment part for adjusting the position of the exposure mask; a gap adjustment part for adjusting a gap between the exposure mask and the to-be-exposed substrate; a first sensor for measuring the position of at least one among the exposure mask and the to-be-exposed substrate; a second sensor for measuring the gap between the exposure mask and the to-be-exposed substrate; and a control unit which performs a first control according to the measurement result from the first sensor, and after the first control, performs a second control according to the measurement result from the second sensor. The first control reduces the relative distance between the exposure mask and the to-be-exposed substrate by means of the position adjustment part.

Abstract: Provided is a flexible mechanism. The flexible mechanism comprises: a flexible backbone which is introduced into a treatment area in the human body and which bends along a path in the human body; and a wire for transmitting an operation force provided through a handler prepared at one end of the flexible backbone to an end-effector prepared at the other end of the flexible backbone, wherein the wire extends from the one end of the flexible backbone to the other end of the flexible backbone and can wind around the outer circumferential surface of the flexible backbone in multiples of 360 degrees or passes through a spiral path formed on an inner surface in multiples of 360 degrees.

Abstract: An electrode structure for a positive electrode of a metal-air battery is provided. The electrode structure for a positive electrode of a metal-air battery is formed of a compound of copper, phosphorus, and sulfur and it can comprise a membrane in which a plurality of fibrillated fibers form a network.

Abstract: Disclosed is a resistive switching element. The resistive switching element includes a first oxide layer and a second oxide layer stacked one on top of the other such that an interface is present therebetween, wherein the first oxide layer and the second oxide layer are made of different metal oxides; two-dimensional electron gas (2DEG) present in the interface between the first oxide layer and the second oxide layer and functioning as an inactive electrode; and an active electrode disposed on the second oxide layer, wherein when a positive bias is applied to the active electrode, an electric field is generated between the active electrode and the two-dimensional electron gas, such that the second oxide layer is subjected to the electric field, and active metal ions from the active electrode are injected into the second oxide layer. The resistive switching element realizes highly uniform resistive switching operation.

Abstract: A device and method for building life cycle sustainability assessment using probabilistic analysis method, the device and method being capable of assessing and predicting building life cycle sustainability, and a recording medium storing the method.

Abstract: The present invention relates to an amphiphilic compound having a dendronic hydrophobic group, a method for preparing the same, and a method for extraction, solubilization, stabilization, or crystallization of a membrane protein by using the same. The use of the compound according to the present invention leads to an excellent membrane protein solubilization effect and a stable storage of a membrane protein in an aqueous solution for a long time, and thus can be utilized for functional analysis and structural analysis of the membrane protein. Especially, the amphiphilic compound having a dendronic hydrophobic group showed very remarkable characteristics in the visualization of protein composites through an electronic microscope.