Abstract: A seller terminal for trading a NFT recording a management history of a used vehicle is provided. The seller terminal may include: a communication interface; an input/output unit; one or more processors; and a storage medium storing one or more programs configured to be executable by the one or more processors, wherein the one or more processors may be configured to receive a management history of a used vehicle through the input/output unit, transmit an issuance request for a non-fungible token (NFT), which records the management history of the used vehicle, to a blockchain network through the communication interface, transmitting the issuance request, meaning calling an issuance function 4 contract stored in the blockchain network, wherein the management history of the used vehicle may include at least one of accident history, maintenance history, mileage, and owner replacement history.

Abstract: An epoxy-based adhesive composition and methods for manufacturing the same are provided. The adhesive composition provides excellent adhesive strength and impact strength uniformly over a wide temperature range.

Abstract: An epoxy-based adhesive composition and methods for manufacturing the same are provided. The adhesive composition provides excellent adhesive strength and impact strength uniformly over a wide temperature range. In addition, the adhesive composition of the present application may have a level of viscosity capable of ensuring excellent processability.

Abstract: A pyrolysis gas reforming system is provided.

Abstract: A heat dissipation device for an electronic element includes a first chamber containing a printed circuit board with heating elements, and a second chamber for heat exchange. The second chamber contains a refrigerant injection part and supply part. A heat transfer part between the chambers receives heat from the heating elements and transfers it to the second chamber. A condensing part condenses injected refrigerant. The heat transfer part has evaporation-inducing ribs on its surface exposed to the second chamber, allowing injected liquid refrigerant to be adsorbed and flow downward in a zigzag pattern. This configuration enables efficient heat dissipation through phase changes of the refrigerant as it evaporates and condenses. The device may also include features like specially-shaped condensation ribs, a blower part to improve condensation, and a pressure regulator for the second chamber. This design provides improved heat dissipation performance without increasing device size.

Abstract: The present application relates to an epoxy-based adhesive composition, which may include (a) one or more epoxy resins, (b) a urethane resin having a weight average molecular weight (Mw) of 30,000 or less, and having a polytetrahydrofuran unit, (c) a core-shell rubber in the form of secondary particles in which two or more core-shell rubbers in the form of primary particles are aggregated and (d) one or more epoxy curing agents. The adhesive composition of the present application can provide excellent adhesion strength, peel strength and impact-resistant strength uniformly over a wide temperature range.

Abstract: Disclosed are a steel pipe for a line pipe having excellent low temperature toughness in a welded zone thereof, and a method for manufacturing the same, in which alloy components and a ratio thereof are controlled, and high frequency heat-treatment is carried out on the welded zone, and immediately thereafter, a cooling process is performed thereon in a strictly controlled manner, thereby improving the low temperature toughness of the welded zone, such that a resulting steel pipe is suitable for use in a pipeline and an offshore structure.

Abstract: A cooling apparatus for an electronic element includes a first chamber in a non-vacuum state, the first chamber being configured such that a printed circuit board equipped with a heat-generating element is disposed in the first chamber, a second chamber in a vacuum state, the second chamber being configured such that a spray unit configured to spray a refrigerant and a refrigerant supply unit configured to supply the refrigerant to the spray unit are disposed in the second chamber, and an evaporation unit disposed between the first chamber and the second chamber, in which the spray unit sprays the refrigerant, which is supplied by the refrigerant supply unit and condensed in the second chamber, into the second chamber, and in which the evaporation unit evaporates the refrigerant, which is sprayed into the second chamber by the spray unit.

Abstract: There is provided a binder for a secondary battery anode, in which double-bond functional groups are selectively formed in a fluorine-based polymer by using an organic catalyst, and a cross-linked structure can be formed by the double bonds through only an electrode drying process without the introduction of a heterogeneous additive.

Abstract: An organic light-emitting device is provided. The device includes a first electrode, a second electrode, and an organic layer disposed between the first electrode and the second electrode and including an emission layer. The organic layer includes a first compound represented by Formula 1 and a second compound represented by Formula 2. Various possibilities for the constituents of chemical structures in Formulas 1 and 2 are presented.

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus of the present invention may comprise decoding an indicator indicating whether or not partition information of a current block is derived from partition information of a corresponding block of the current block, obtaining the partition information of the current block based on the decoded indicator, and partitioning the current block based on the obtained partition information.

Abstract: An epoxy-based adhesive composition and methods for manufacturing the same are provided. The adhesive composition provides excellent adhesion strength, peel strength and impact-resistant strength uniformly over a wide temperature range.

Abstract: A separator for lithium-ion secondary batteries is characterized in that DPVDF is dip-coated on the separator and crosslinked. A material of the separator is selected from polyethylene (PE), polypropylene (PP), cellulose acetate (CA), polyvinylidene fluoride (PVDF), polyethersulfone (PES), or polyethylene terephthalate (PET). A method for manufacturing the separator includes: synthesizing polyvinylidene fluoride (DPVDF) including a double bond by dehydrochlorinating poly(vinylidene fluoride-co-chlorotrifluoroethylene [P(VDF-CTFE)]; coating a separator by dipping in a dipping solution formed by dissolving the DPVDF in an organic solvent; and crosslinking the DPVDF coated on the separator by performing a radical reaction by heat treatment.

Abstract: An epoxy-based adhesive composition and methods for manufacturing the same are provided. The adhesive composition provides excellent adhesion strength, peel strength and impact-resistant strength uniformly over a wide temperature range.

Abstract: An organic light-emitting device is provided. The device includes a first electrode, a second electrode, and an organic layer disposed between the first electrode and the second electrode and including an emission layer. The organic layer includes a first compound represented by Formula 1 and a second compound represented by Formula 2. Various possibilities for the constituents of chemical structures in Formulas 1 and 2 are presented.

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus of the present invention may comprise decoding an indicator indicating whether or not partition information of a current block is derived from partition information of a corresponding block of the current block, obtaining the partition information of the current block based on the decoded indicator, and partitioning the current block based on the obtained partition information.

Abstract: In one example, a semiconductor device comprises a substrate having a top surface and a bottom surface, an electronic device on the bottom surface of the substrate, a leadframe on the bottom surface of the substrate, the leadframe comprising a paddle, wherein the paddle is coupled to the electronic device, and a lead electrically coupled to the electronic device. The semiconductor device further comprises a first protective material contacting the bottom surface of the substrate and a side surface of the electronic device.

Abstract: Provided is a refrigerator including a main body, a first storage chamber and a second storage chamber provided inside the main body with front sides thereof open, an evaporator, while being arranged inside the main body, configured to generate cold air and arranged behind the first storage chamber, a first duct configured to supply the cold air generated from the evaporator to the first storage chamber, a second duct configured to supply cold air to the second storage chamber, and a connection duct configured to connect the first duct and the second duct to cause the cold air inside the first duct to flow into the second duct, and a damper configured to selectively open and dose the connection duct, wherein the damper is provided inside the first duct, and the second duct has a front surface in a form of a flat surface.

Abstract: A system for analyzing a passive network is provided, the system being configured to extend the frequency band with the interpolation function of the low frequency band and the extrapolation function of the high frequency band for S-parameters with limited measurement band, adjust the propagation delay time for the band-extended S-parameter to derive the final band-extended S-parameter, and analyze the time response of the passive network on the basis of the output voltage waveform estimated by performing convolution on the impulse response to the derived final band-extended S-parameter and the input voltage waveform of the passive network, thereby improving the time response performance of the passive network without a complex circuit conversion process, and making it possible to be capable of lightweight structures. Furthermore, it is possible to improve the accuracy of the impulse response by adjusting the propagation delay time removed from the band-limited S-parameter.

Abstract: The present invention relates to a method of processing a band-limited S-parameter for a transient analysis, the method including removing a propagation delay time of a band-limited S-parameter signal; generating an interpolation function for a real part of the band-limited S-parameter signal; generating an extrapolation function for the real part of the band-limited S-parameter signal; and generating an extended S-parameter signal with the interpolation function and the extrapolation function. Accordingly, by extending the interpolation function and the extrapolation function ensuring continuity with the real part, there is an advantage that the causality problem does not occur in the impulse response of the extended S-parameter signal.