Abstract: A surface-treated inorganic nanoparticle includes a core including Mania (TiO2); a shell surrounding the core, and including zirconia(ZrO2); and a dispersant including a phosphate functional group, and connected to the shell,

Abstract: A ceramic electronic component includes a body including a dielectric layer and an internal electrode; and an external electrode disposed on the body and connected to the internal electrode. The dielectric layer includes a plurality of grains and grain boundaries disposed between adjacent grains. The grain boundary includes a secondary phase including Sn, a rare-earth element, and a first subcomponent. The rare-earth element includes at least one of Y, Dy, Ho, Er, Gd, Ce, Nd, Sm, Tb, Tm, La, Gd and Yb. The first subcomponent includes at least one of Si, Mg, and Al.

Abstract: Disclosed herein are a catalyst for hydrocracking reaction of high molecular weight components in bio-oil, a method for preparing the same and a method for bio-oil upgrading using the same. The catalyst includes a zeolite carrier; and at least one metal selected from the group consisting of nickel (Ni), ruthenium (Ru) and cerium (Ce) supported on the carrier. The catalyst promotes the hydrocracking of high molecular weight compounds contained in the bio-oil, but also inhibits the polymerization reaction of the decomposed product, thereby more effectively enhancing the hydrocracking reaction of the bio-oil.

Abstract: Proposed is a method of manufacturing a carbon precursor fiber for a gas diffusion layer having excellent tensile properties (e.g., strength and modulus) by controlling the cross-sectional shape of carbon fiber. The method includes preparing a polyacrylonitrile-based copolymer, preparing spinning products by spinning a spinning solution containing the polyacrylonitrile-based copolymer in a coagulation bath, and obtaining a carbon precursor fiber by drawing the spinning products through heat treatment. The coagulation bath includes an amount of about 60% to 90% by volume of methanol and an amount of about 10% to 40% by volume of dimethylformamide based on the total volume of the coagulation bath.

Abstract: A surface-treated inorganic nanoparticle including an inorganic nanoparticle, a first dispersant connected to the inorganic nanoparticle, and a second dispersant connected to the inorganic nanoparticle, wherein a molecular weight (MW) of the first dispersant is different from a molecular weight (MW) of the second dispersant.

Abstract: A lens is provided. The lens includes a lens unit, and a serrated layer disposed on at least a portion of a surface of the lens unit, wherein the serrated layer includes a plurality of particles dispersed therein that are injected into the serrated layer. The serrated layer includes a plurality of conical structures having different sizes, accordingly, a refractive index on the surface of the serrated layer may gradually change.

Abstract: The present disclosure relates to a dispersant containing a specific compound having a fluorene skeleton, and a composition using the same.

Abstract: Provided is a method and apparatus for measuring a distance between an object and a user using a camera module. According to the method, when the camera module is driven, a zooming function is performed to examine whether an image is formed on an image device. When the zooming function is completed, a focusing function is performed to examine whether focusing is adjusted. When focusing is adjusted, a focal length “f” and a distance “b” between a lens and the image device are calculated. Thereafter, a distance “a” between an object and a user is calculated and displayed using a lens Equation. Since a distance between a desired object and a user can be measured only using a zoom function and a focusing function of an existing camera module without a separate distance measurement device, the distance between the desired object and a user can be easily measured without increase in a volume of an apparatus or manufacturing costs.

Abstract: An integrated assembly of a speaker and an intenna, and an assembly method thereof is provided. After an upper carrier and a lower carrier are assembled by bonding, the lower carrier and the speaker are mechanically assembled through coupling parts formed to the lower carrier and the speaker. A first coupling part is formed at an inner side surface of a speaker receiving space of the lower carrier, and a second coupling part is formed at an outer side surface of the speaker. The coupling parts have a female and male connecting relationship at a corresponding position to enable a mechanical bonding. Damage to the speaker that may occur during a bonding process of an intenna carrier can be prevented, and may eliminate the need of solder or an adhesive is eliminated.

Abstract: Provided is a method and apparatus for measuring a distance between an object and a user using a camera module. According to the method, when the camera module is driven, a zooming function is performed to examine whether an image is formed on an image device. When the zooming function is completed, a focusing function is performed to examine whether focusing is adjusted. When focusing is adjusted, a focal length “f” and a distance “b” between a lens and the image device are calculated. Thereafter, a distance “a” between an object and a user is calculated and displayed using a lens Equation. Since a distance between a desired object and a user can be measured only using a zoom function and a focusing function of an existing camera module without a separate distance measurement device, the distance between the desired object and a user can be easily measured without increase in a volume of an apparatus or manufacturing costs.

Abstract: A microwave clothes dryer is disclosed. The dryer includes a rotatable drum that is supported at one of its ends by an annular driven pulley member which is rotatingly carried by and bears upon a cantilevered cylindrical bearing support member. A motor, drive pulley and drive belt rotate the annular driven pulley member and the drum to which it is attached. A magnetron provides microwave energy to the interior of the dryer and a blower circulates forced air through the dryer, cooling the magnetron and removing water vapor from the interior of the drum. The inner periphery of the annular pulley member includes a circumferential slot that communicates with a microwave energy leakage path that has a length approximately equal to one-quarter of the wave length of the microwave energy and which extends from the interior of the drum to and through the clearance space between the annular pulley member and the cylindrical bearing support member.