Abstract: Provided are a method of preparing, and use of 1-(2,2-dimethylpropyl)-cyclopropene as an ethylene antagonist that can be formulated as an aqueous emulsion and applicable to plants through immersion or spraying. It was confirmed that the compound can be reliably synthesized and stored by the preparation method disclosed herein, and it was also confirmed that the compound can effectively inhibit ethylene action when formulated as an aqueous emulsion and treated to a plant by immersion or spray treatment; hence, the compound may be used as an ethylene antagonist on plants, as a pre-harvest or post-harvest plant growth regulator, or as a freshness keeping agent.

Abstract: The present invention relates to a peptide derivative, having collagenase inhibitory activity, or a use thereof and has the effects of increasing a percutaneous absorption rate, inhibiting collagenase activity, and reducing wrinkles.

Abstract: In accordance with the present invention, an elevator core structure includes an elevator frame (120) separated from a main frame (110) and extending in a longitudinal direction of the main frame (110), and a guide frame (130) formed on an inner surface of the elevator frame (120). Here, the elevator frame (120) may be formed by stacking a plurality of frame segments (121), and a guide frame unit (131) forming the guide frame (130) may be mounted to one surface of each of the frame segments (121). The present invention exhibits an effect of early-constructing the elevator frame regardless of a construction schedule of a main frame of a building.

Abstract: In accordance with the present invention, an elevator core structure includes an elevator frame (120) separated from a main frame (110) and extending in a longitudinal direction of the main frame (110), and a guide frame (130) formed on an inner surface of the elevator frame (120). Here, the elevator frame (120) may be formed by stacking a plurality of frame segments (121), and a guide frame unit (131) forming the guide frame (130) may be mounted to one surface of each of the frame segments (121). The present invention exhibits an effect of early-constructing the elevator frame regardless of a construction schedule of a main frame of a building.

Abstract: An RC lattice beam is provided that can greatly dampen the transfer of vibrations in particular. As the concrete included in the RC lattice beam is polymer concrete that contains a polymer, fine-scale vibrations that may otherwise affect exposure apparatuses may be effectively dampened, while the depth of the conventional lattice beam may be kept the same. Thus, a high-damping RC lattice beam is provided that is capable of maximizing the performance of a precision exposure apparatus by reducing the defect rate and improving productivity.

Abstract: An RC lattice beam is provided that can greatly dampen the transfer of vibrations in particular. As the concrete included in the RC lattice beam is polymer concrete that contains a polymer, fine-scale vibrations that may otherwise affect exposure apparatuses may be effectively dampened, while the depth of the conventional lattice beam may be kept the same. Thus, a high-damping RC lattice beam is provided that is capable of maximizing the performance of a precision exposure apparatus by reducing the defect rate and improving productivity.

Abstract: An apparatus for displaying a holographic three-dimensional (3D) image is provided. The apparatus includes: a holographic pattern generation unit; a spatial optical modulation device including a phase transition layer formed of a phase transition material, a phase of which is changed by a temperature. A holographic pattern generated by the holographic pattern generation unit is optically addressed on the spatial optical modulation device. The apparatus also includes a heat source for applying heat to the phase transition layer; a control unit for controlling the heat source according to holographic pattern information generated by the holographic pattern generation unit; and a reproduction light source for irradiating light for image reproduction onto the spatial optical modulation device.

Abstract: A spatial light modulator includes a variable refractive index layer that has a refractive index which is variable based on one of an optical signal and an electrical signal, a metal layer that is disposed on the refractive index-change layer, and a high refractive index layer on the metal layer. Light incident on the metal layer causes generation of a surface plasmon at an interface between the variable refractive index layer and the metal layer.

Abstract: A photorefractive composite, a spatial light modulator and a hologram display device using the same include at least one carborane compound expressed as the following Chemical Formulae 1A through 1C: wherein the photorefractive composite exhibits photoconductivity and optical nonlinearity.

Abstract: A spatial light modulator may include a refraction layer including first and second regions with refractive indices different from each other; and/or a metal thin film on a lower face of the refraction layer configured to generate surface plasmons due to light incident on the metal thin film via the refraction layer. When first light is incident on the refraction layer, a phase difference between light reflected by the first and second regions may occur. A spatial light modulator may include a metal thin film and a refraction layer on the metal thin film. The refraction layer may include a first region with a first refractive index and a second region with a second refractive index different from the first refractive index. When first light is incident on the refraction layer, there may be a phase difference between light reflected from the first and second regions.

Abstract: A holography device may include a light reaction layer configured to react with light to form and remove a diffraction grating, and a metal thin film on the light reaction layer. When first light is incident on the metal thin film while the grating is formed in the light reaction layer, surface plasmon formed on the metal thin film may be diffracted so as to output a holography image. A method of processing a holography image may include recording the image on a holography device by irradiating first light to a light reaction layer to form a diffraction grating, outputting the image by irradiating second light to a metal thin film on the light reaction layer to diffract surface plasmon formed on the metal thin film, and deleting the image from the holography device by irradiating third light to the light reaction layer to remove the grating.

Abstract: A photorefractive composite, a spatial light modulator and a hologram display device using the same include at least one carborane compound expressed as the following Chemical Formulae 1A through 1C: wherein the photorefractive composite exhibits photoconductivity and optical nonlinearity.

Abstract: An apparatus for displaying a holographic three-dimensional (3D) image is provided. The apparatus includes: a holographic pattern generation unit; a spatial optical modulation device including a phase transition layer formed of a phase transition material, a phase of which is changed by a temperature. A holographic pattern generated by the holographic pattern generation unit is optically addressed on the spatial optical modulation device. The apparatus also includes a heat source for applying heat to the phase transition layer; a control unit for controlling the heat source according to holographic pattern information generated by the holographic pattern generation unit; and a reproduction light source for irradiating light for image reproduction onto the spatial optical modulation device.

Abstract: A spatial light modulator, a holographic image display including the same, and a method for spatially modulating light. The spatial light modulator modulates a phase of light that is incident on a plurality of pixels and includes a variable refractive index layer that has a refractive index which is variable based on one of an optical signal and an electrical signal, and a metal layer that is disposed on the refractive index-change layer, and a high refractive index layer on the metal layer. Light incident on the metal layer causes generation of a surface plasmon at an interface between the variable refractive index layer and the metal layer.

Abstract: In a method of manufacturing a single-layer cholesteric liquid crystal display device, a liquid crystal composition of a cholesteric phase is formed between a first substrate and a second substrate. A plurality of liquid crystal layers are formed by sequentially adjusting the temperature of the cholesteric phase liquid crystal composition and performing a plurality of optical curing processes on the cholesteric phase liquid crystal composition. Each of the plurality of liquid crystal layers corresponds to one of the plurality of subpixels.

Abstract: A color filter and display devices using the same are provided, the color filter includes a first electrode and a second electrode spaced apart from each other; and a variable filter layer between the first electrode and the second electrode. The variable filter layer includes a polymer, liquid crystal dispersed in the polymer, and a plurality of color display materials mixed in the liquid crystal.

Abstract: Example embodiments relate to a solar cell configured to scatter incident light to be penetrated so as to increase a light progress path and includes a polymer-dispersed liquid crystal (PDLC) layer on at least one of a first and a second electrodes.

Abstract: The color filter may include a pixel unit having a plurality of sub-pixels of different colors, wherein the plurality of sub-pixels respectively include flat plate metal layers and a plurality of color PDLC layers on the flat plate metal layers, and the plurality of color PDLC layers each include a polymer, a plurality of liquid crystal drops dispersed in the polymer, and a plurality of color display materials mixed in the liquid crystal drops.

Abstract: A polymer dispersed display apparatus includes a polymer layer, and a plurality of liquid crystal drops dispersed in the polymer layer. Quantum dots emitting a plurality of colors of light are mixed in the liquid crystal drops. Therefore, the polymer dispersed display apparatus displays colors without the need for a color filter. Thus, the polymer dispersed display apparatus need not include a polarization plate and a color filter, so that a light usage efficiency of the polymer dispersed display apparatus increases.

Abstract: A display device may include a first substrate, a second substrate, reflective plates and a transparent electrode. The first substrate and the second substrate may be facing each other. The reflective plates may be on a surface of the first substrate facing the second substrate. The transparent electrode may be disposed on a surface of the second substrate facing the first substrate. Color filters and a polymer-dispersed liquid crystal (PDLC) layer may further be included in the display device. The color filters may be on the reflective plates, and the PDLC may be between the first substrate and the second substrate. The PDLC layer may include a polymer and liquid crystals dispersed in the polymer.