Abstract: A shadow mask includes a mask including one surface, another surface, and an opening that passes from one surface to the other, and a shutter provided on the one surface of the mask and configured to adjust a size of the opening, wherein the shutter is configured to move from an edge to a center of the opening to adjust the size of the opening, and the shadow mask is applied in manufacturing a blank mask for a semiconductor lithography process.

Abstract: An electronic device is provided. The electronic device includes two housing structures, a hinge structure, and a flexible display, the hinge structure includes a first saw-toothed spur gear, a second saw-toothed spur gear, a third saw-toothed spur gear, a fourth saw-toothed spur gear, a first guide structure fixed to the first housing structure and rotated by the gears, and a second guide structure fixed to the second housing structure and rotated in an opposite direction of the first guide structure, the first guide structure is rotated about a first axis formed from a bottom surface of the flexible display upwards, and the second guide structure is rotated about a second axis that is spaced apart from the first axis and is formed from the bottom surface of the flexible display.

Abstract: The present invention relates to a crystalline form II represented by formula 1, a method for preparing the same, and a pharmaceutical composition comprising the same. The crystalline form II represented by formula 1 of the present invention may be characterized by XRD patterns, DSC profiles, and/or TGA profiles.

Abstract: A positive electrode for a lithium secondary battery includes a positive electrode active material layer including: a first positive electrode active material represented by Formula 1 and having a crystalline size of 150 nm or more; a conductive agent including single-walled carbon nanotubes (SWCNTs); and a binder. A lithium secondary battery includes the positive electrode.

Abstract: A method for producing a composite conductive material having excellent dispersibility is provided. The method includes supporting a catalyst on surfaces of carbon particles; heat treating the catalyst in a helium or hydrogen atmosphere such that the catalyst penetrate the surfaces of the carbon particles and are impregnated beneath the surfaces of the carbon particles at a contact point between the carbon particles and the impregnated catalyst; and heating the carbon particles having the impregnated catalyst disposed therein in the presence of a source gas to grow carbon nanofibers from the impregnated catalyst to form a composite conductive material, wherein the source gas contains a carbon source, and wherein the carbon nanofibers extend from the contact point to above the surfaces of the carbon particles.

Abstract: A method of preparing a lithium secondary battery includes: (1) mixing a small particle lithium composite transition metal oxide having an average particle diameter (D50) of less than 7 ?m with a boron-containing raw material and performing a heat treatment, mixing a large particle lithium composite transition metal oxide having an average particle diameter (D50) of 8 ?m or more with a cobalt-containing raw material and a boron-containing raw material and performing a heat treatment, mixing the first positive electrode active material and the second positive electrode active material to prepare a positive electrode material having a bimodal particle diameter distribution, preparing a positive electrode by coating the positive electrode material on a positive electrode collector, and assembling the positive electrode, a negative electrode including a silicon-based negative electrode active material, and a separator.

Abstract: The present invention relates to a crystalline form III represented by formula 1, a method for preparing the same, and a pharmaceutical composition comprising the same. The crystalline form III represented by formula 1 of the present invention may be characterized by XRD patterns, DSC profiles, and/or TGA profiles.

Abstract: A container includes a container portion having a storage space in which contents are stored, a spout coupled to the container portion and through which the contents in the container portion are discharged, and a nozzle configured to discharge the contents in fixed amounts, wherein the contents enter the nozzle from the head portion, and the spout and the nozzle are integrally formed.

Abstract: The present invention relates to a crystalline form I represented by formula 1, a method for preparing the same, and a pharmaceutical composition comprising the same. The crystalline form I represented by formula 1 of the present invention may be characterized by XRD patterns, DSC profiles, and/or TGA profiles.

Abstract: The present disclosure provides an ejector nozzle and an ejector including the same. The ejector nozzle includes a first tube having a first flow path into which a fluid is introduced, and a second tube provided outside the first tube and having an inner diameter larger than an inner diameter of the first tube, the second tube defining a second flow path between the first tube and the second tube, in which the first tube further includes a communication port that penetrates the first tube to allow the first flow path to communicate with the second flow path and is openably and closably provided, and in which when the communication port is opened, a part of the fluid flowing in the first flow path is allowed to flow along the second flow path.

Abstract: Disclosed is a specimen collection stick including a support unit having a predetermined length and a specimen collection unit located at a front end of the support unit, the specimen collection unit being configured to collect a specimen in a body that comes into contact with the specimen collection unit, whereby the amount of a specimen that is collected from of a subject is increased and the amount of the collected specimen that is dissolved or dispersed in a reagent or a solution from the specimen collection stick is increased.

Abstract: According to the present invention, a sample collection part of a sample collection stick includes: a hub coupled to the front side of a support part; and multiple collection blades arranged on the outer surface of the hub in a shape forming an axial symmetry around the lengthwise central axis of the hub, and each of the plate-shaped collection blades is formed to, at the midpoint of the longitudinal length thereof, have a transverse width equal to or smaller than the longitudinal length and have a thickness smaller than the transverse width. Therefore, disclosed is a technique capable of increasing the amount of collected samples and increasing the amount of collected samples dissolved or dispersed into a fixing solution from a sample collection stick.

Abstract: A blank mask includes a light-transmitting substrate; and a light-shielding film on the light-transmitting substrate. The light-shielding film includes a transition metal and oxygen, and a scum formation time required to generate scum is 120 minutes or more when light with a wavelength of 172 nm and an intensity of 10 kJ/cm2 is applied on the light-shielding film.

Abstract: The present disclosure describes a paper shredder having a shredder, a first receptacle, a housing, a magnet, and a hook assembly. The first receptacle can be positioned below the shredder. The housing can comprise a front wall, a rear wall, lateral side walls connecting the front and rear wall, and a base. The housing can be configured to enclose the shredder and the receptacle. The magnet can be positioned in the base of the housing. The hook assembly can be coupled to an upper portion of the rear wall of the housing. The hook assembly can comprise a body extending along at least a portion of the rear wall of the housing and a hook coupled to a first end of the body. The base and the receptacle can be removable from the paper shredder.

Abstract: An electroluminescent display apparatus including a pixel connected to a detection line; a panel driving circuit configured to off-drive a driving element included in the pixel in a detection interval; a reference voltage generating circuit configured to supply a detection reference voltage to the detection line prior to the detection interval, generate a first comparator reference voltage which is higher than the detection reference voltage in the detection interval, and generate a second comparator reference voltage which is lower than the detection reference voltage in the detection interval; a comparator configured to compare the first comparator reference voltage with a voltage of the detection line to generate a first comparison output at a first timing of the detection interval and comparing the second comparator reference voltage with the voltage of the detection line to generate a second comparison output at a second timing of the detection interval; and a logic circuit configured to determine an occ

Abstract: An electroluminescent display apparatus can include a display panel including the one or more subpixels connected to a data line, a gate line, and a low-level power line. The display apparatus can further include a comparator connected to the one or more subpixels through the data line and the low-level power line to compare a first input voltage from the data line with a second input voltage from the low-level power line to generate a comparison output. The first input voltage is a reference voltage, and the second input voltage is a voltage of a specific node of the one or more subpixels capable of being shifted from an initialization voltage.

Abstract: A method of managing teeth performed in a processor-based device includes: displaying a first oral measurement image including tooth measurement images in a tooth shape to measure state information of each of user’s teeth; receiving state information of a target teeth of the user measured from a tooth diagnostic device; receiving a selection signal input for selecting a first tooth measurement image from among the tooth measurement images; matching state information of the target tooth with state information of the first tooth measurement image; and representing the state information of the first tooth measurement image in the first oral measurement image.

Abstract: In one example, a semiconductor device can comprise a unit substrate comprising a unit conductive structure and a unit dielectric structure, and an electronic component coupled to the unit conductive structure. The unit substrate can comprise a portion of a singulated subpanel substrate of a panel substrate. Other examples and related methods are also disclosed herein.

Abstract: A polishing slurry including a hydrophilic nanocarbon particle having a nitrogen-containing functional group, and a weight ratio of a nitrogen element relative to a carbon element of the hydrophilic nanocarbon particle, the weight ratio expressed as N/C×100% is greater than or equal to about 5 wt %, and a method of manufacturing a semiconductor device using the polishing slurry.