Abstract: The present invention relates to leather fibers for product materials, physically extracted from cowhide, and more specifically, the leather fibers are easily obtained for each length so that there is an advantage in that the leather fibers having different lengths can be respectively used as materials more appropriately for various articles such as leather sheets or yarns.

Abstract: Provided is a leather fiber for leather spun yarn with improved physical properties of the leather spun yarn by containing leather fibers with more improved length, thickness, fineness. The leather fiber has an average length of 15 mm or more and 40% or more of the content of fibers of more than 15 mm, in the leather fibers for the leather spun yarn contained in the leather spun yarn formed by containing the leather fibers and natural fibers or/and regenerated fibers.

Abstract: Disclosed are a method and an apparatus for an instant messaging service to provide a schedule service. A schedule management server according to an example embodiment includes receiving a schedule creating request, selecting any one of a first type of calendar belonging to a chatroom in which the schedule creating request is created and a second type of calendar belonging to a user account which creates the schedule creating request, according to a schedule type included in the schedule creating request; and creating a schedule corresponding to the selected type of calendar.

Abstract: An apparatus for processing natural language according to an embodiment includes a collection module that collects documents having tags, a parsing module that extracts text from the collected documents and extracts tag-related information on the tag surrounding each extracted text, and a preprocessing module that generates tokens of a preset unit by tokenizing each extracted text, generates token position information for each token in full text of the document, and sets the token and the token position information as training data in matching with the tag-related information.

Abstract: Disclosed are a method and an apparatus for an instant messaging service to provide a schedule service. A schedule management server according to an example embodiment includes receiving a schedule creating request, selecting any one of a first type of calendar belonging to a chatroom in which the schedule creating request is created and a second type of calendar belonging to a user account which creates the schedule creating request, according to a schedule type included in the schedule creating request; and creating a schedule corresponding to the selected type of calendar.

Abstract: Disclosed herein are an intelligent photovoltaic module controller used in a photovoltaic power generation system to connect two photovoltaic modules in series or in parallel and a method for controlling the same. According to the present invention, it is possible to maximize power generation efficiency by controlling series/parallel connection based on changes in current flowing through a pair of external connection terminals of the photovoltaic module controller or a string connecting multiple photovoltaic module controllers in series.

Abstract: Provided is leather fibers for use in yarn. The leather fibers forming the yarn are obtained from cowhide and a thickness index (M) of the leather fibers satisfies Equation 1: M=D1/D2?60 ??[Equation 1] where D1: average thickness of the 10 fibers having the highest thickness in 1 mg of leather fibers, and D2: average thickness of the 10 fibers having the lowest thickness in 1 mg of leather fibers.

Abstract: Provided is a leather fiber for leather spun yarn with improved physical properties of the leather spun yarn by containing leather fibers with more improved length, thickness, fineness, and the like than conventional leather fibers, in which the leather fiber has an average length of 15 mm or more and 40% or more of the content of fibers of more than 15 mm, in the leather fibers for the leather spun yarn contained in the leather spun yarn formed by containing the leather fibers and natural fibers or/and regenerated fibers.

Abstract: Provided is a leather fiber for leather spun yarn with improved physical properties of the leather spun yarn by containing leather fibers with more improved length, thickness, fineness, and the like than conventional leather fibers, in which the leather fiber has an average length of 15 mm or more and 40% or more of the content of fibers of more than 15 mm in the leather fibers for the leather spun yarn contained in the leather spun yarn.

Abstract: Provided is leather spun yarn with improved physical properties of the leather spun yarn by containing leather fibers longer than conventional leather fibers, in which the leather fiber has an average length of 15 mm or more and 40% or more of the content of fibers of more than 15 mm, in the leather fibers for the leather spun yarn contained in the leather spun yarn formed by containing the leather fibers and synthetic fibers.

Abstract: Provided are leather fibers for yarn. The leather fibers forming the yarn are obtained from cowhide. An amount of the leather fibers having an H value of 30 or more is 30% by weight or more of a total leather fibers contained in the yarn. The H value is defined by the following Equation 2: [Equation 2] H=L/D where L: leather fiber length, and D: leather fiber thickness. A thickness index (M) of the leather fibers satisfies Equation 1: [Equation 1] M=D1/D2?60 where D1: an average thickness of 0 fibers having a highest thickness in 1 mg of leather fibers, and D2: an average thickness of 10 fibers having a lowest thickness in 1 mg of leather fibers.

Abstract: Leather fibers for yarn are provided. The leather fibers used to manufacture the yarn are obtained from cowhide. The leather fibers obtained through leather selection and separation techniques may improve the physical properties of the yarn.

Abstract: The present invention relates to a method of preparing a precursor material of a positive electrode active material from a waste lithium secondary battery, to a method of preparing a lithium secondary battery positive electrode active material including a precursor material prepared by the same precursor preparation method, and to a lithium secondary battery positive electrode active material prepared by the same positive electrode active material preparation method.

Abstract: The present disclosure relates to a method for producing, high-purity lithium hydroxide from a lithium-containing waste liquid of a spent lithium secondary battery.

Abstract: The present disclosure provides: a method for preparing a cathode active material precursor material by using a high-nickel-content waste lithium secondary battery; a method for preparing a cathode active material for a lithium secondary battery, including a cathode active material precursor material prepared by the method for preparing a cathode active material precursor material; and a cathode active material for a lithium secondary battery, prepared according to the method for preparing a cathode active material for a lithium secondary battery.

Abstract: Provided is an x-ray detecting type of a component counter and a method for counting components using the same. The component counter includes: an image obtaining module to obtain an image of an object with an x-ray tube and a flat detector; an inputting frame located at the front of the image obtaining module and having a guiding surface; a transferring tray to move between the image obtaining module and the inputting frame along a moving guide installed at the guiding surface; and a foreign object sensor displaced at the inputting frame to detect a foreign object; wherein the detector has a horizontal section to corresponding to an investigating surface of the transferring tray.

Abstract: Provided is an x-ray detecting type of a component counter and a method for counting components using the same. The component counter includes: an image obtaining module to obtain an image of an object with an x-ray tube and a flat detector; an inputting frame located at the front of the image obtaining module and having a guiding surface; a transferring tray to move between the image obtaining module and the inputting frame along a moving guide installed at the guiding surface; and a foreign object sensor displaced at the inputting frame to detect a foreign object; wherein the detector has a horizontal section to corresponding to an investigating surface of the transferring tray.

Abstract: An pressure sensitive adhesive composition according to the present invention includes: an acrylic copolymer; a multifunctional acrylate-based compound; and a photoinitiator, in which the acrylic copolymer includes a repeating unit derived from an acrylate-based monomer having a Tg of ?20° C. or less and a repeating unit derived from an unsaturated carboxylic acid monomer, and the repeating unit derived from the unsaturated carboxylic acid monomer is included in an amount of 10 to 50 parts by weight based on the total 100 parts by weight of the acrylic copolymer.

Abstract: A reflective light control film includes a transparent film having a plurality of protruded line patterns formed on one surface of the base film, each of the protruded line patterns including a first side having an inclination angle with respect to the one surface of the base film and a second side, and a light reflection layer provided on the first side. The reflective light control film has excellent visibility for the screen even if it is not provided with a separate shade, and the screen is prevented from being reflected on the windshield.

Abstract: An pressure sensitive adhesive composition according to the present invention includes: an acrylic copolymer; a multifunctional acrylate-based compound; and a photoinitiator, in which the acrylic copolymer includes a repeating unit derived from an acrylate-based monomer having a Tg of ?20° C. or less and a repeating unit derived from an unsaturated carboxylic acid monomer, and the repeating unit derived from the unsaturated carboxylic acid monomer is included in an amount of 10 to 50 parts by weight based on the total 100 parts by weight of the acrylic copolymer.