Abstract: A refrigerator may include a storage compartment, an inner door which comprises an opening having a size corresponding to a size of the storage compartment, a plurality of door guards, and an outer door which open and close the storage compartment, wherein the inner door comprises a control unit may control an internal environment of the storage compartment.

Abstract: A method of a terminal may comprise: receiving a first message including state information of a base station from the base station; identifying preliminary inactive state information included in the first message when the state information of the base station indicates a preliminary inactive state; and performing a cell selection based on the preliminary inactive state information.

Abstract: A method of a terminal may comprise: receiving a reference signal from a base station; generating channel information based on the reference signal; generating wavelet-transformed channel information by applying wavelet transform to the channel information; generating compressed channel information by compressing the wavelet-transformed channel information; and transmitting the compressed channel information to the base station.

Abstract: An optical imaging system includes a first lens having positive refractive power, a second lens having positive refractive power, a third lens having positive refractive power, and a fourth lens having positive refractive power, and an F No. of the optical imaging system is equal to or less than 1.0. The optical imaging system is capable of achieving miniaturization while capturing an image at low illumination.

Abstract: A cathode for a lithium secondary battery includes a cathode current collector, and a cathode active material layer formed on the cathode current collector. The cathode active material layer includes cathode active material particles. The cathode active material particles include a lithium metal oxide particle containing nickel and having a mole fraction of cobalt of 0.02 or less among all elements except lithium and oxygen.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens sequentially disposed along an optical axis from an object-side surface of the first lens toward an imaging plane of an image sensor, wherein 3.5?TTL/IMG HT, f1+f2|<2.0 mm, and 0.7?L1S1es/L1S1el<1.0 are satisfied, where TTL is a distance along the optical axis from the object-side surface of the first lens to the imaging plane of the image sensor, IMG HT is one-half of a diagonal length of the imaging plane of the image sensor, f1 is a focal length of the first lens, f2 is a focal length of the second lens, L1S1el is a maximum effective radius of the object-side surface of the first lens, and L1S1es is a minimum effective radius of the object-side surface of the first lens.

Abstract: A quantum dot including a core that includes a first semiconductor nanocrystal including zinc and selenium, and optionally sulfur and/or tellurium, and a shell that includes a second semiconductor nanocrystal including zinc, and at least one of sulfur or selenium is disclosed. The quantum dot has an average particle diameter of greater than or equal to about 13 nm, an emission peak wavelength in a range of about 440 nm to about 470 nm, and a full width at half maximum (FWHM) of an emission wavelength of less than about 25 nm. A method for preparing the quantum dot, a quantum dot-polymer composite including the quantum dot, and an electronic device including the quantum dot is also disclosed.

Abstract: Provided is a peptide composition for preventing or treating Alzheimer's dementia. A peptide or a salt substituent thereof according to the presently claimed subject matter exhibits effects such as suppression of LPS-mediated cytokine production, suppression of LPS-induced neuroinflammation, amelioration of cognitive impairment, suppression of beta amyloid or tau protein aggregation, and suppression of neuronal loss. The polypeptide or the salt substituent thereof can permeate the blood-brain barrier, and thus, is expected to be usefully used for preventing or treating Alzheimer's dementia.

Abstract: An optical imaging system includes a first lens having negative refractive power, a second lens having negative refractive power, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. The first to seventh lenses are sequentially disposed from an object side toward an image side. The third lens, the fourth lens, the sixth lens, and the seventh lens are formed of plastic, and the first lens, the second lens, and the fifth lens are formed of glass.

Abstract: An optical imaging system includes a reflective member having a reflective surface for changing an optical path of light, a first lens having positive refractive power, a second lens having negative refractive power, a third lens, a fourth lens, and a fifth lens. The first lens to the fifth lens are sequentially disposed along an optical axis from an object side and are each disposed closer to an image sensor than the reflective member. The optical imaging system satisfies 0.2 mm<C1.0<0.3 mm, where C1.0 is a distance by which the image sensor moves in a direction perpendicular to the optical axis with respect to a shake amount of 1.0° measured by a shake detection unit.

Abstract: Provided is a perovskite solar cell. The perovskite solar cell includes a bottom electrode; a hole transport layer formed on the bottom electrode; a first polymer electrolyte layer formed on the hole transport layer and including a halide; a perovskite photoactive layer formed on the first polymer electrolyte layer; an electron transport layer formed on the perovskite photoactive layer; a second polymer electrolyte layer formed on the electron transport layer and including an amine group; and a top electrode formed on the second polymer electrolyte layer.

Abstract: An optical imaging system includes: a first lens group including a plurality of lenses; a second lens group including a plurality of lenses; a first reflecting member disposed on an object side of the first lens group; and a plurality of second reflecting members arranged between the second lens group and an image sensor. One or both of the first lens group and the second lens group is movable along an optical axis, an interval along the optical axis between the first lens group and the second lens group is varied between a first interval and a second interval smaller than the first interval, and as at least one of the first lens group and the second lens group is moved, one or more of the second reflecting members are moved.

Abstract: The present invention relates to a bicycle saddle including: a saddle frame disposed on a bicycle frame; a saddle plate disposed on top of the saddle frame; and a saddle seat disposed on top of the saddle plate to elastically support the hips, wherein the saddle seat is divided into a first seat and a second seat having top portions rounded with a given radius of curvature and disposed spaced apart from each other to a band-like shape along both longitudinal edges of the saddle plate, and between the first seat and the second seat is disposed an arch-shaped ischium accommodation portion for accommodating the ischial tuberosities of the pelvis thereinto to prevent the arteries, veins, and nerves from a rider's anus to the genitals from being compressed against the saddle seat by his or her body weight.

Abstract: An optical imaging system includes a first lens group that can move in an optical direction and has negative refractive power; a second lens group that can move in the optical direction and has positive refractive power; and a third lens group that can move in the optical direction and has negative refractive power. The first lens group, the second lens group, and the third lens group include seven lenses in total, and at least one of the seven lenses includes an aspherical surface.

Abstract: An optical imaging system includes a first lens group, a second lens group, and a third lens group, sequentially arranged from an object side, wherein the first lens group includes two lenses having negative and positive refractive power, the second lens group includes a plurality of lenses, and the third lens group includes two lenses having negative and positive refractive power.

Abstract: A display device includes a substrate, a common electrode layer on the substrate where the common electrode layer includes a first common pad protruding in a second direction from a first reference side surface extending in a first direction and the second direction intersects the first direction, a driving layer between the substrate and the common electrode layer, a display layer between the driving layer and the common electrode layer, a first conductive via apart from the driving layer and between the substrate and the first common pad, and a driving chip at an opposite side of the first conductive via with reference to the driving layer.

Abstract: The present invention relates to a high-strength hot-dipped galvanized steel sheet having excellent surface quality and spot weldability and a method for manufacturing same. The hot-dipped galvanized steel sheet according to one aspect of the present invention comprises a base steel sheet and a hot-dipped galvanized layer formed on the surface of the base steel sheet, in which an inhibiting layer made of an Fe—Al alloy can be formed at an area ratio of 60% or more between the base steel sheet and the hot-dipped galvanized layer.

Abstract: The present invention relates to a composition and a kit for removing lipopolysaccharide (LPS), comprising a polypeptide having binding ability to lipopolysaccharide or a salt substitute thereof as an active ingredient, and a method for removing lipopolysaccharide. The polypeptide or a salt substitute thereof according to the present invention has very excellent binding ability with lipopolysaccharide, and the efficiency of removing lipopolysaccharide during a purification process in a protein production process using E. coli is high, such that the lipopolysaccharide removal efficiency can be maximized.

Abstract: The present invention provides a coupler comprising: an inner insertion part including a through-hole; and an outer support part for encompassing the outside of the inner insertion part, wherein the inner insertion part includes a connection groove through which the outer support part passes, the outer support part includes at least one projection part protruding in the center direction of the through-hole, and the projection part includes a groove part.