Abstract: Disclosed is a technique for switching from a master node to a secondary node in a communication system. A method of a first communication node may comprise: adding the first communication node as a primary secondary cell (PSCell) to a second communication node through dual connectivity (DC); generating a first user plane path for smart dynamic switching (SDS) and a first instance for supporting the first user plane path according to a request from the second communication node; transmitting information on the first user plane path and the first instance to a terminal; receiving user data based on the first user plane path from the terminal as the first instance; and transmitting the user data to a core network using the first user plane path.

Abstract: An electrode sheet drying equipment, an electrode sheet manufacturing system including the same, and an electrode sheet drying method including an air-floating roller disposed downstream of a drying oven, and the air-floating roller is configured to spray hot air through multiple air spraying holes formed on the outer circumferential surface. Accordingly, the electrode sheet discharged from the drying oven in a partially undried state can be additionally dried, thereby preventing contamination of a transfer roller and/or equipment of the subsequent process.

Abstract: Disclosed is an electrode assembly, a battery, and a battery pack and a vehicle including the same. In the electrode assembly, a first electrode, a second electrode, and a separator interposed therebetween are wound based on a winding axis to define a core and an outer circumference. The first electrode includes a first active material portion coated with an active material layer and a first uncoated portion not coated with an active material layer along a winding direction. At least a part of the first uncoated portion is defined as an electrode tab by itself. The first uncoated portion includes a first portion adjacent to the core of the electrode assembly, a second portion adjacent to the outer circumference of the electrode assembly, and a third portion interposed between the first portion and the second portion. The first portion or the second portion has a smaller height than the third portion in the winding axis direction.

Abstract: Disclosed is an electrode assembly, a battery, and a battery pack and a vehicle including the same. In the electrode assembly, a first electrode, a second electrode, and a separator interposed therebetween are wound based on an axis to define a core and an outer circumference. The first electrode includes an uncoated portion at a long side end thereof and exposed out of the separator along a winding axis direction of the electrode assembly. A part of the uncoated portion is bent in a radial direction of the electrode assembly to form a bending surface region that includes overlapping layers of the uncoated portion, and in a partial region of the bending surface region, the number of stacked layers of the uncoated portion is 10 or more in the winding axis direction of the electrode assembly.

Abstract: An infrared heat source module is configured to minimize problems such as wrinkles or cracks in electrodes even if the patterns of a coated part and an uncoated part of the electrodes present in a current collector vary. The module improves a drying efficiency of the coated part of the current collector. An electrode using the infrared heat source module is manufactured by a process.

Abstract: Proposed is an all-solid-state battery including a self-standing sheet layer positioned on a negative electrode current collector. The all-solid-state battery may include the negative electrode current collector, the self-standing sheet layer positioned on the negative electrode current collector, a solid electrolyte layer positioned on the sheet layer, a positive electrode active material layer positioned on the solid electrolyte layer, and a positive electrode current collector positioned on the positive electrode active material layer. The sheet layer contains carbon nanotubes.

Abstract: An electrode manufacturing apparatus includes a supply part to supply an electrode precursor, a drying part to dry the electrode slurry, an air supply part to supply high-temperature vapor, an air introducing part to introduce the supplied high-temperature vapor, a flow path connected from the air introducing part to the air supply part, a sensor to measure humidity, an air discharge part, and a humidifying part to humidify the high-temperature vapor. The apparatus further includes a discharge part to discharge the manufactured electrode, a monitoring part, and a control part to collect monitoring information and information on the humidity to control whether to open or close the air discharge part and a degree of humidification by the humidifying part. An electrode manufacturing method using the apparatus thereof.

Abstract: Disclosed is a cutting head for electric hair clippers capable of providing a smooth and stable haircut and improving processing efficiency and product quality. The cutting head for electric hair clippers includes a fixed cutter, which is secured to a main body of the electric hair clippers and includes a plurality of fixed blades, and a movable cutter, which is configured to perform linear reciprocating movement relative to the fixed cutter using electric power applied to the electric hair clippers and includes a plurality of movable blades. Each of the movable blades has a movable cutting surface maintained in surface contact with a corresponding one of the fixed blades, and a retaining groove formed in the movable cutting surface. The retaining groove in the movable cutting surface constitutes a lubricant-retaining portion and is embodied as a groove engraved inward through a laser etching process.

Abstract: A method of manufacturing a plastic container includes adding nano-sized silica particles to a saturated polyester in an amount of 20 ppm to 10% by weight during transesterification or esterification and polycondensing an aromatic dicarboxylic acid and ethylene glycol as starting materials. The silica particles have an average particle diameter of 3–100 nm. The saturated polyester is polyethyleneterephthalate.

Abstract: A charger of an electric hair cutter having sterilizing means for charging a battery installed in the hair cutter comprising, a main body having various components therein; a sterilization room formed on an upper surface of the main body to be upwardly inclined and protruded, adapted to be opened and closed by a cover, and provided with a switch at a certain place contacting the cover for turning on/off an ultraviolet lamp; a receiving groove formed in a center part of the sterilization room to be upwardly opened and provided with gripping recesses at both sides thereof and a supporting step at a lower end thereof, the supporting step being provided with a charging terminal connected to a circuit, for mounting a hair cutter having a battery terminal therein; an ultraviolet lamp mounted at an upper part of the sterilization room and emitting ultraviolet having a sterilizing power by a power supply; and a reflecting plate mounted to a rearward region of the ultraviolet lamp and focusing the emitted ultraviolet

Abstract: A domestic nanofiltration membrane based water purifier without a storage tank. The water purifier according to the present invention uses a nanofiltration membrane filter as a main filtering section and does not have a storage tank for containment of purified water. Although conventional reverse osmosis membrane based water purification systems provide good quality water, they have problems in that installation of the storage tanks due to insufficient flow rate results in the increased volumes of water purifiers, and at the same time, secondary pollution may be caused by microorganism propagation upon prolonged storage. In this regard, the present invention provides a domestic nanofiltration membrane based water purifier without a storage tank, in which a nanofiltration membrane filter with a pore size of approximately 0.1 to 10 nm is used as a main filtering section.

Abstract: A reverse osmosis membrane having excellent antifouling property, which is advantageous in terms of fundamental prevention of fouling generated by inorganic crystalloids, organic contaminants, and microorganisms, and a method for preparing the same. The membrane can be manufactured by hydrolyzing a titanium compound in an acidic aqueous solution to produce TiO2 particles of nano scale; dispersing the produced TiO2 particles in an acidic aqueous solution of pH 1-6 or an alkaline aqueous solution of pH 9-13 to yield a stable TiO2 dispersed solution; and immersing a reverse osmosis membrane prepared by a known method in the TiO2 dispersed solution to incorporate TiO2 into the membrane.

Abstract: An insulating tape for use in LOC (lead-on-chip) type semiconductor chip packages. With a tripartite structure in which two adhesive layers are provided to both surfaces of a base film, the insulating tape ranges, in coefficient of thermal expansion, from 16.0 to 23.5 ppm/° C. and is very useful in improving the reliability of LOC semiconductor chip packages having lead frames.

Abstract: A method for preparing polyamic acid and polyimide of three-dimensional molecular structure such that these polymers are superior in adhesive strength and high-temperature stability while maintaining their inherent thermal resistance and mechanical properties, and thus can be effectively used as an adhesive material for high temperature adhesive tapes suitable for semiconductor assembly.

Abstract: An adhesive tape which can bond electronic parts at the environs of a lead frame, such as leads, diepads and radiant plate semiconductor chips, to each other and is superior in adhesiveness, thermal resistance and electrical properties. The adhesive tape is produced by coating on one side or both sides of a thermal resistant film an adhesive composition including an acryl resin, a mixed epoxy resin of a bisphenol A-type epoxy resin and a cresol novolak epoxy or a phenol novolak epoxy resin, a maleimide compound containing at least two intramolecular maleimide groups, an aromatic diamine compound, an epoxy-containing liquid silicon resin and an organic or inorganic filler and drying it.

Abstract: A polymide useful as an adhesive for semiconductor assemblies having excellent thermal resistance and adhesive strength at high temperatures.

Abstract: A method for preparing polyamic acid and polyimide, which is suitable for use in adhesives or adhesive tapes for electronic parts. The polymers have such three-dimensional molecular structures that a significant improvement can be brought about in solvent solubility, thermal resistance, mechanical properties, and adhesive properties onto various substrates. The polyamic acid is prepared by reacting at least one tetracarboxylic dianhydride, at least one aromatic diamine, at least one diamine with a siloxane structure, represented by the following general formula I, and at least one polyamino compound represented by the following general formula II or III. The polyamic acid is converted into polyimide through thermal or chemical imidization.

Abstract: A pigment-dispersed photoresist composition for a color filter of liquid crystal display, which comprises a photosensitive resin composition comprising a binder resin, a multifunctional acrylate monomer or oligomer, a polyene compound containing at least unsaturated group the main chain of which may be substituted with esters or urethanes, a multifunctional thiol compound, a photopolymerization initiator, a sensitizer, a soft polymerization inhibitor and an organic solvent, and a pigment-dispersed composition comprising pigment, a polymeric dispersing agent and/or a pigment-derived dispersing agent in combination with a surfactant a leveling agent, a slip agent, an antifoaming agent and an organic solvent, is disclosed.

Abstract: A photopolymerization photoresist composition having a binder resin, a multifunctional compound, a photopolymerization initiator, a sensitizer and other additives. The photopolymerization initiator has one or more 4,6-bis(chloromethyl)-s-triazine compound containing a diazophenyl group. The initiator acts as a chromophore and is represented by the following general formula I: ##STR1## wherein the position at which the diazo group bonds to phenyl group may be changed. R is an aliphatic radical or an unsubstituted- or substituted aromatic radical and n is an integer of 0 to 2.