Abstract: The present disclosure relates to an electrohydrodynamic jet printing apparatus and a method for controlling printing of the electrohydrodynamic jet printing apparatus. The electrohydrodynamic jet printing apparatus according to the present disclosure includes a nozzle that ejects supplied ink as a droplet towards a substrate; an electrode that is formed on the nozzle to form an electric field between the nozzle and the substrate by an applied voltage; a voltage supplier that applies the voltage to the electrode; and a controller that controls the voltage supplier, the controller controlling in real time the voltage being applied from the voltage supplier to the electrode such that a size of the droplet being ejected from the nozzle is constant.

Abstract: The present disclosure relates to a 3D surface printing apparatus for the edge area of substrate, the apparatus including a jig part that erects the substrate and immobilizes it, a nozzle part that comprises a nozzle that ejects ink through Electrohydrodynamic (EHD) jetting by applying a voltage to an electrode, from above the erected substrate; a moving part that moves the nozzle left and right; and a control part that controls a printing operation, wherein the moving part prints a pattern that is continuously connected along a front surface of the rim of the substrate, a side surface of the substrate and a rear surface of the rim of the substrate as it horizontally moves the nozzle, and the control part controls the printing operation, considering changes in 3D electric field distribution.

Abstract: Disclosed is a printing apparatus for a 3D surface, which performs printing by ejecting a droplet onto a 3D surface and controlling an electric field on an impact path of the droplet, the printing apparatus including: a ejecting environment information provider configured to provide ejecting environment information between a nozzle and an impact point; and a controller configured to predict a result of printing on an actual substrate by accumulating previous printing results according to printing conditions and the ejecting environment information into a database, and perform the printing on the 3D surface while changing the printing conditions provided by the database based on the ejecting environment information provided by the ejecting environment information provider.

Abstract: Disclosed is an inkjet printhead. The inkjet printhead with a plurality of nozzles to eject a liquid solution by an electrohydrodynamic method includes: a first electrode formed for each of the plurality of nozzles and applied with a voltage for ejecting the liquid solution by the electrohydrodynamic method; a first voltage controller configured to apply the voltage to the first electrode; and a second electrode placed between and spaced apart from the first electrodes formed in the nozzles and grounded to inhibit electric field interference between the nozzles.

Abstract: Disclosed is a printing apparatus for a 3D surface, which performs printing by ejecting a droplet onto a 3D surface and controlling an electric field on an impact path of the droplet, the printing apparatus including: a ejecting environment information provider configured to provide ejecting environment information between a nozzle and an impact point; and a controller configured to predict a result of printing on an actual substrate by accumulating previous printing results according to printing conditions and the ejecting environment information into a database, and perform the printing on the 3D surface while changing the printing conditions provided by the database based on the ejecting environment information provided by the ejecting environment information provider.

Abstract: The present invention relates to a metal-organic framework and an energy storage system having the same, and more specifically, to an energy storage system that is capable of providing excellent electrical conductivity and electrochemical capacity properties, especially excellent electrochemical performance at low temperatures, by means of a novel one-dimensional metal-organic framework having thianthrene-based organic ligands.

Abstract: The present invention relates to a metal-organic framework and an energy storage system having the same, and more specifically, to an energy storage system that is capable of providing excellent electrical conductivity and electrochemical capacity properties, especially excellent electrochemical performance at low temperatures, by means of a novel one-dimensional metal-organic framework having thianthrene-based organic ligands.

Abstract: The present disclosure relates to a two-dimensional Ni-organic framework/rGO composite including: a two-dimensional electroconductive Ni-organic framework in which Ni and an organic ligand containing a substituted or unsubstituted C6-C30 arylhexamine are repeatedly bonded in a branched form; and reduced graphene oxide (rGO). Thus, when a composite of reduced graphene oxide (rGO) and a two-dimensional Ni-MOF is prepared and used as an energy storage electrode material, the two-dimensional Ni-organic framework/rGO composite of the present disclosure can exhibit higher discharge capacity per weight due to the synergistic effect of rGO and Ni-MOF as compared to when Ni-MOF is used alone, and the composite can be used to manufacture a thin-film type electrode, which can be used as a next-generation energy storage electrode having high mechanical bending strength and energy density per volume.

Abstract: A cover for a door frame includes: a sealing member mounted to the door frame; and an inner cover covering at least a portion of the sealing member and at least a portion of the door frame, where a portion of the corner cover is embedded in the sealing member so that the inner cover and the sealing member form a unitary one-piece structure.

Abstract: A door frame for a vehicle includes an inner frame configured such that a roof part corresponding to a roof of a vehicle body and a pillar part corresponding to a pillar of the vehicle body extend to be integrated with each other. A first outer frame is configured to extend along the roof part of the inner frame and to be coupled to the roof part so that a first glass run is fixed to the first outer frame. A second outer frame is configured to extend along the pillar part and to be coupled to the pillar part so that a second glass run is fixed to the second outer frame. The first glass run and the second glass run are both capable of absorbing impact when the door glass is inserted thereinto.

Abstract: A door frame for a vehicle includes an inner frame configured such that a roof part corresponding to a roof of a vehicle body and a pillar part corresponding to a pillar of the vehicle body extend to be integrated with each other. A first outer frame is configured to extend along the roof part of the inner frame and to be coupled to the roof part so that a first glass run is fixed to the first outer frame. A second outer frame is configured to extend along the pillar part and to be coupled to the pillar part so that a second glass run is fixed to the second outer frame. The first glass run and the second glass run are both capable of absorbing impact when the door glass is inserted thereinto.

Abstract: A cover for a door frame includes: a sealing member mounted to the door frame; and an inner cover covering at least a portion of the sealing member and at least a portion of the door frame, where a portion of the corner cover is embedded in the sealing member so that the inner cover and the sealing member form a unitary one-piece structure.

Abstract: Disclosed is a method of manufacturing carbonized fine cellulose, which enables the formation of carbonized nano-sized cellulose by subjecting cellulose to drying, carbonization, and pulverization by means of shock waves using ultrasonic waves and microbubbles, thus realizing mass producibility, making it possible to fabricate a carbonized nano-sized material having uniform quality, and reducing the manufacturing costs. The carbonized fine cellulose is in the form of a nano-sized uniform carbon powder, and can thus be utilized as a catalyst support in various forms, such as fuel cell electrodes, electrodes of energy storage devices such as supercapacitors or secondary batteries, catalyst supports for micro-nano hybrid reactors, etc.

Abstract: Disclosed are a linear light source generator, a lenticular system used in the linear light source generator, and a stepper equipped with the linear light source generator. The linear light source generator uses a lenticular, and includes a light source and a lenticular system. A light exposure work of the stepper is performed based on a relative transfer between the linear light source generator, and a pattern film or a photo mask.

Abstract: The present disclosure provides a multi-channel switching converter which may be operated from a plurality of energy sources, using multiple channels, and may effectively maintain an output voltage by driving the switching converter from any one energy source or a plurality of energy sources that are most suitable in consideration of input voltages of the plurality of energy sources and may provide an output through another energy source even though a problem occurs in some of the plurality of energy sources.

Abstract: Provided are a carbon electrode particularly suitable to be used as a negative electrode of an energy storing apparatus and the like and a method for manufacturing the same by forming the carbon electrode by heat-treating a natural carbon material such as a natural fiber sheet including a natural fiber or cellulose sheet including a natural cellulose fiber which is a natural material other than a petroleum-based material or a petroleum-based synthetic material to reduce manufacturing cost, shorten a manufacturing process, minimize discharge of a hazardous substance, and uniformly maintain storage capacitance even in repeated charging and discharging when being applied to the energy storing apparatus. The carbon electrode includes any one of an alkaline metal particle and an alkaline earth metal particle having an average particle size of less than 100 nm which is formed on a surface in a process of carbonizing a natural carbon material.

Abstract: A laundry handling apparatus having a body provided with an inlet, a door to open/close the inlet, and a hinge assembly for the door to be rotatably installed to the body. The door is provided at both sides of a rear surface thereof with a hinge installation part at which the hinge assembly is installed, and the hinge assembly is installed at one of the two hinge installation parts, thereby enabling the change of an opening/closing direction of the door in a convenient manner.

Abstract: Disclosed are a bone conduction speaker module and bone conduction earphones having the bone conduction speaker modules. More particularly, the present invention relates to a bone conduction speaker module and bone conduction earphones having the bone conduction speaker modules, wherein the bone conduction speaker modules can accurately output sound, can stably output sound with fewer vibrations, enable a wearer to comfortably use the earphones, can prevent strain to the wearer by minimizing influence of magnetic force, can facilitate wearing of the earphones, and can prevent an accident from occurring by allowing the wearer to hear external sounds. To this end, a bone conduction speaker module used in earphones, headphones, and a hearing aid, includes: a housing including a first casing covering a portion coming into contact with a human body and a second casing covering a side of the first casing; a magnet part; and a voice coil part.

Abstract: Disclosed is a method of manufacturing carbonized fine cellulose, which enables the formation of carbonized nano-sized cellulose by subjecting cellulose to drying, carbonization, and pulverization by means of shock waves using ultrasonic waves and microbubbles, thus realizing mass producibility, making it possible to fabricate a carbonized nano-sized material having uniform quality, and reducing the manufacturing costs. The carbonized fine cellulose is in the form of a nano-sized uniform carbon powder, and can thus be utilized as a catalyst support in various forms, such as fuel cell electrodes, electrodes of energy storage devices such as supercapacitors or secondary batteries, catalyst supports for micro-nano hybrid reactors, etc.

Abstract: Provided is a method of synthesizing boron nitride, comprising the steps of: preparing a boron compound and a nitrogen compound; mixing the boron compound and the nitrogen compound in a non-aqueous solvent; forming an ester compound by melting the mixture in the non-aqueous solvent; dehydrating the ester compound; and forming boron nitride by nitriding the ester compound in a reductive atmosphere.