Abstract: An organic light-emitting display device comprises a first thin-film transistor disposed on a substrate; and a second thin-film transistor disposed on the substrate and spaced apart from the first thin-film transistor. The first thin-film transistor comprises a first semiconductor layer, a first conductive layer disposed on the first semiconductor layer and that overlaps the first semiconductor layer, and a first insulating layer disposed between the first semiconductor layer and the first conductive layer. The second thin-film transistor comprises a second semiconductor layer, and a second conductive layer disposed on the second semiconductor layer and that overlaps the second semiconductor layer.

Abstract: A TFT substrate includes a first active pattern, a first gate insulation, and a first gate. A second gate is on a second gate insulation covering the first gate. A source connection electrode contacts a source region of the first active pattern. A drain connection electrode contacts its drain region. A second active pattern is on a first insulation covering the second gate. A third gate insulation covers the second active pattern. A third gate is disposed on the third gate insulation. A second insulation interlayer covers the third gate. A first source, a first drain, a second source, and a second drain are disposed on the second insulation interlayer. The first source and the first drain contact the source connection electrode and the drain connection electrode. The second source and the second drain contact a source region and a drain region of the second active pattern.

Abstract: A device for maintaining the internal temperature of a pressure vessel. The device includes a pressure vessel equipped with a main heater for heating test water to a predetermined test temperature and for maintaining the predetermined test temperature, a preheater for primarily heating the test water to the predetermined test temperature before the main heater heats the test water, and a heat exchanger including an feed pipe for feeding the test water heated by the preheater to the pressure vessel and a discharge pipe for transporting the test water discharged from the pressure vessel, in which the feed pipe is disposed inside the discharge pipe.

Abstract: The present invention relates to an emulsifying initiator and, more specifically, provides: an emulsifying initiator comprising a surfactant part, an initiator part, and vinyl monomer-derived repeating unit, the surfactant part comprising an organic acid-based monomer-derived repeating unit, and the initiator part including a peroxide-based monomer-derived repeating unit; and a thermoplastic resin composition comprising the same.

Abstract: A method for preparing a core-shell copolymer includes: preparing a core by polymerizing a conjugated diene-based monomer and adding an initiator including two or more peroxide-based functional groups when a polymerization conversion rate is 95% or more and less than 100%; and preparing a core-shell copolymer by polymerizing an alkyl (meth)acrylate monomer in the presence of the core and a macro initiator having a weight average molecular weight of 4,000 g/mol to 50,000 g/mol, wherein the initiator is added in an amount of more than 0 parts by weight and less than 2.5 parts by weight based on 100 parts by weight of the conjugated diene-based monomer, and the macro initiator is added in an amount of more than 0 parts by weight and less than 3.5 parts by weight based on 100 parts by weight of the alkyl (meth)acrylate monomer.

Abstract: The present invention relates to a recrystallization rate measurement method of zirconium alloy cladding of a nuclear fuel rod, the method including: step 1 of irradiating SEM electron beams at a given scanning interval onto a first specimen to a third specimen which were electrolytically polished and obtaining electron backscattered signals therefrom by an EBSD camera; step 2 of converting electron backscattered signals obtained in step 1 into pattern quality values, respectively, and generating the pattern quality values as frequencies by a specified interval; step 3 of obtaining pattern quality frequencies (B+D) which are a portion of a whole frequency distribution of the second specimen, and pattern quality frequencies (D+E) which are a portion of a whole frequency distribution of the first specimen; and step 4 of obtaining the recrystallization rate of the second specimen with an equation of X ? = ( B + D ) ( D + E ) × 100 , % .

Abstract: [Summary] The present invention relates to an acrylic processing aid, a method for preparing the same, and a polyvinyl chloride resin composition comprising the same. More specifically, the present invention relates to an acrylic processing aid having a core-shell structure comprising the core and shell comprise a polymer prepared by copolymerizing a methyl methacrylate monomer and an alkyl acrylate monomer having 1 to 18 carbon atoms, and wherein the core comprises the polymer having a weight-average molecular weight ranging from 10,000,000 to 18,000,000 g/mol, a method for preparing the same, and a polyvinyl chloride resin composition comprising the same.

Abstract: Provided is a method for preparing an acrylic copolymer, and more specifically, provided are a method for preparing an acrylic copolymer including: i) adding and polymerizing 50 to 80 parts by weight of a methyl (meth)acrylate monomer and 10 to 49 parts by weight of a C2-C12 alkyl (meth) acrylate monomer, based on 100 parts by weight of a total monomer content, in a reactor (S1); and ii) adding and polymerizing 1 to 10 parts by weight of the methyl (meth) acrylate monomer, more than 0.01 part by weight to less than 1 part by weight of an acrylic cross-linking agent, and a surfactant, based on 100 parts by weight of the total monomer content, in which a polymerization conversion ratio of the polymerization in step (S1) is 70% to 90% (S2), an acrylic copolymer prepared therefrom, and a resin composition including the same.

Abstract: The present invention relates to an acrylic processing aid, a method for preparing the same, and a polyvinyl chloride resin composition comprising the same. More specifically, the present invention relates to an acrylic processing aid having a core-shell structure comprising the core and shell comprise a polymer prepared by copolymerizing a methyl methacrylate monomer and an alkyl acrylate monomer having 1 to 18 carbon atoms, and wherein the core comprises the polymer having a weight-average molecular weight ranging from 10,000,000 to 18,000,000 g/mol, a method for preparing the same, and a polyvinyl chloride resin composition comprising the same.

Abstract: The present disclosure relates to an acrylic processing aid and a vinyl chloride resin composition including the same, and in particular, to a core-shell-structured acrylic processing aid preparing a core using a silicone-azo macroinitiator and preparing a shell using C12 to C18 alkyl methacrylate as a co-monomer, and a vinyl chloride resin composition including the same. The acrylic processing aid is used for sheet forming of the vinyl chloride resin, and facilitates manufacture of a high-quality vinyl chloride resin formed article having excellent transparency, adhesion resistance and heat stability, having no non-dispersed melt (fish-eye) production, and having significantly reduced air mark and flow mark occurrences.

Abstract: The present invention relates to an acrylic processing aid and a vinyl chloride resin composition comprising the same. Specifically, the present invention relates to a core-shell structured acrylic processing aid which can play both roles as a lubricant and a processing aid at the same time by using monomers having a certain composition for the core and shell, respectively, and controlling their specific viscosity, and to a vinyl chloride resin composition comprising the same.

Abstract: The present invention relates to an acrylic processing aid which may enhance the processability and dispersibility of a resin, a method of producing the same, a vinyl chloride-based resin composition including the same, and a vinyl chloride-based resin formed product derived from the vinyl chloride-based resin composition. An acrylic processing aid according to the present invention may be used as a processing aid for a resin (e.g., a vinyl chloride-based resin) to promote gelation of the resin to enhance the processability, thus suppressing generation of fish-eye, and in a forming processing (e.g., a calendar forming), may promote melting of the resin to suppress the generation of air marks and flow marks, thereby enhancing the surface characteristics of the produced resin.

Abstract: Disclosed is a method of manufacturing a zirconium alloy plate, wherein fine precipitates having an average size of 35 nm or less are uniformly distributed in a matrix through multi-pass hot rolling, thus increasing corrosion resistance and fatigue failure resistance, the method including forming a zirconium alloy ingot (step 1); subjecting the ingot of step 1 to beta annealing and rapid cooling (step 2); preheating the ingot of step 2 (step 3); forming a multi-pass hot-rolled plate through primary hot rolling and then air cooling during which secondary hot rolling is subsequently conducted (step 4); subjecting the multi-pass hot-rolled plate of step 4 to primary intermediate annealing and primary cold rolling (step 5); subjecting the rolled plate of step 5 to secondary intermediate annealing and secondary cold rolling (step 6); subjecting the rolled plate of step 6 to tertiary intermediate annealing and tertiary cold rolling (step 7); and finally annealing the rolled plate of step 7 (step 8).

Abstract: A gate driving circuit is provided. A gate driving circuit comprises a pull-up control unit including a control transistor, a pull-up unit, a carry unit which outputs a clock signal into a kth carry signal and a pull-down unit which pulls down a control node to an off voltage, wherein the control transistor includes one electrode and the other electrode connected to the control node, the one electrode and the other electrode being disposed on a gate electrode such that the one electrode and the other electrode being insulated from the gate electrode, wherein the gate electrode and the other electrode are disposed not to be overlapped with each other, and a distance between an upper surface of the gate electrode and a lower surface of the one electrode is longer than that of the upper surface of the gate electrode and a lower surface of the other electrode.

Abstract: Provided are core-shell structured polymer particles capable of enhancing abrasion resistance, rolling resistance and wet slip resistance of rubber while improving mechanical properties such as tensile strength and tensile elongation, a rubber composition including the same, and a molded rubber article, for example, a tire, prepared therefrom. Such core-shell structured polymer particles are capable of enhancing abrasion resistance (lifespan property), rolling resistance (fuel efficiency performance) and wet slip resistance (brake performance) while providing excellent mechanical properties to rubber. Accordingly, the molded rubber article, for example, a tire, prepared from the rubber composition including the core-shell structured polymer particles is capable having an excellent lifespan property, fuel efficiency performance and brake performance while exhibiting excellent mechanical properties.

Abstract: The present disclosure relates to an acrylic processing aid and a vinyl chloride resin composition including the same, and in particular, to a core-shell-structured acrylic processing aid preparing a core using a silicone-azo macroinitiator and preparing a shell using C12 to C18 alkyl methacrylate as a co-monomer, and a vinyl chloride resin composition including the same. The acrylic processing aid is used for sheet forming of the vinyl chloride resin, and facilitates manufacture of a high-quality vinyl chloride resin formed article having excellent transparency, adhesion resistance and heat stability, having no non-dispersed melt (fish-eye) production, and having significantly reduced air mark and flow mark occurrences.

Abstract: The present invention relates to an acrylic processing aid and a vinyl chloride resin composition comprising the same. Specifically, the present invention relates to a core-shell structured acrylic processing aid which can play both roles as a lubricant and a processing aid at the same time by using monomers having a certain composition for the core and shell, respectively, and controlling their specific viscosity, and to a vinyl chloride resin composition comprising the same.

Abstract: The present invention relates to an acrylic processing aid, a method for preparing the same, and a polyvinyl chloride resin composition comprising the same. More specifically, the present invention relates to an acrylic processing aid having a core-shell structure comprising the core and shell comprise a polymer prepared by copolymerizing a methyl methacrylate monomer and an alkyl acrylate monomer having 1 to 18 carbon atoms, and wherein the core comprises the polymer having a weight-average molecular weight ranging from 10,000,000 to 18,000,000 g/mol, a method for preparing the same, and a polyvinyl chloride resin composition comprising the same.

Abstract: This invention relates to a composition and method for manufacturing a large-grained uranium oxide nuclear fuel pellet containing an additive. The nuclear fuel pellet is configured such that a uranium oxide powder and an additive powder composed of an Mg compound and a Si compound or Ca compound and a Al compound are mixed together, thus increasing a grain size to thus suppress the release of fission products, thereby increasing the stability of nuclear fuel, preventing cladding tubes from breaking, and contributing to the stable operation of nuclear power plants, ultimately increasing the overall stability of nuclear power plants including nuclear fuel.

Abstract: The present invention relates to an acrylic processing aid which may enhance the processability and dispersibility of a resin, a method of producing the same, a vinyl chloride-based resin composition including the same, and a vinyl chloride-based resin formed product derived from the vinyl chloride-based resin composition. An acrylic processing aid according to the present invention may be used as a processing aid for a resin (e.g., a vinyl chloride-based resin) to promote gelation of the resin to enhance the processability, thus suppressing generation of fish-eye, and in a forming processing (e.g., a calendar forming), may promote melting of the resin to suppress the generation of air marks and flow marks, thereby enhancing the surface characteristics of the produced resin.