Abstract: A battery pack structure for a vehicle includes a outer member having as elongated shape and positioned along an outer part of a battery casing, the outer member having a hollow cross section, and a member reinforcement part provided at a partial section of the outer member and formed by filling a structural foam into a hollow part in the section of the outer member.

Abstract: An activation function conversion program unit and method may be configured to approximate a target activation function to a programmed activation function through machine-learning of an artificial neural network. The method may include setting up a target activation function; approximating the target activation function to a programmed activation function by machine-learning an artificial neural network; and converting the programmed activation function into a slope and offset and storing it in a lookup table. Accordingly, the computation speed and power consumption of the programmed activation function execution unit of an NPU may be optimized.

Abstract: An electric vehicle body can be configured to minimize the entry of foreign matters in a replaceable battery pack region while facilitating battery pack replacement. An electric vehicle body can include first and second battery packs replaceably mounted on a chassis frame, a cover bracket extending on one side of the first battery pack, and an undercover extending on one side of the second battery pack adjacent to the first battery pack and overlapping the cover bracket to seal off a gap between the first battery pack and the second battery pack.

Abstract: A positive electrode active material particle according to one aspect of the present invention may include a lithium composite oxide particle and a coating material including a coating element, in which the lithium composite oxide particle is a secondary particle formed by aggregation of two or more primary particles, the coating material is included on a surface of the secondary particle, the coating material is included in a grain boundary between the primary particles, calcium (Ca) is included in the positive electrode active material particle, and a calcium (Ca) content X included in the positive electrode active material is 0.003 mol %?X?0.03 mol %.

Abstract: A positive electrode active material according to one aspect of the present invention may be a lithium composite oxide, and may satisfy Relational Expression 1 below in an XRD pattern obtained through Rietveld fitting as a result of X-ray diffraction (XRD) analysis using a CuK? ray: 0.110?FWHM(104)?0.170,??[Relational Expression 1] wherein the positive electrode active material according to one aspect of the present invention may include: preparing a first lithium composite oxide by primarily heat-treating a first mixture including the prepared oxide precursor, a lithium-containing compound, and a first cobalt-containing compound.

Abstract: A positive electrode active material precursor according to one aspect of the present invention may be a precursor including a plurality of hydroxide particles, and may satisfy Relational Expression 1 below in an XRD pattern obtained through Rietveld fitting as a result of X-ray diffraction (XRD) analysis using a CuK? ray: 0.82 ? FWHM ( 1 ? 0 ? 2 ) ? 1.22 , [ Relational ? Expression ? 1 ] wherein a positive electrode active material precursor according to one aspect of the present invention may be also a precursor including a plurality of oxide particles, and may satisfy Relational Expression 2 below in an XRD pattern obtained through Rietveld fitting as a result of X-ray diffraction (XRD) analysis using a CuK? ray: 127 ? XRD ? peak ? Integral ? breadth / 4 ? tan ? ? ? 137 , [ Relational ? Expression ? 2 ] wherein, in above Relational Expression 1, said FWHM(102) means a full width at half maximum (FWHM(deg.

Abstract: The present invention provides: an extracellular matrix of which the biocompatibility is greatly increased through fat removal and decellularization and which contains growth factors so as to control physiological activities of cells; and a method for preparing the same. In addition, the extracellular matrix may be effectively obtained through a solvent extraction process using supercritical fluid, and a preservation solution comprising the extracellular matrix may be preserved for a long time by preventing contamination, and has increased manageability so that usability of the extracellular matrix may be greatly increased.

Abstract: In a battery case for a vehicle of the present disclosure, channels of a battery cooling block are arranged in parallel, thereby efficiently cooling a battery regardless of a position of the battery. In addition, a sealer is used to prevent a cooling medium, which is introduced into a cooling channel that exchanges heat with the battery, from being introduced into a non-cooling channel that does not exchange heat with the battery, such that the cooling medium is not introduced into the battery case, which prevents an unnecessary in weight of the battery case. In addition, a cooling block and a side member of a battery case are configured as extruded components to ensure better structural rigidity than a general battery case made by pressing, thereby allowing more cells to be installed by reducing the number of case members and penetration mounts required to ensure structural rigidity of the battery case.

Abstract: The present disclosure provides a data assimilation system of numerical models using atmospheric research aircraft observation data for constructing a data assimilation system for generating improved initial conditions and performing efficient aerial observation work using atmospheric research aircraft observation data, and a method of constructing a weather prediction model with data assimilation applied of the data assimilation system. A data assimilation system of numerical models using atmospheric research aircraft observation data includes an observation error data generation module, a background error covariance generation module, a data assimilation module and a lateral boundary field generation module.

Abstract: An adhesive member includes: a conductive particle layer including a plurality of conductive particles; a non-conductive layer disposed on the conductive particle layer; and a screening layer interposed between the conductive particle layer and the non-conductive layer and includes a plurality of screening members spaced apart from each other.

Abstract: Provided a method of predicting permeability of porous material based on anisotropic flow model. The method of predicting permeability of porous material based on anisotropic flow model comprises: providing a porous medium; establishing a concentric annulus flow model for the porous medium; calculating a concentric annulus cylinder interstitial flow velocity, a concentric annulus cylinder hydraulic tortuosity, and a concentric annulus cylinder hydraulic diameter using the concentric annulus flow model; and predicting a permeability for the porous medium using the concentric annulus cylinder hydraulic tortuosity and the concentric annulus cylinder hydraulic diameter.

Abstract: An embodiment battery system reinforcement apparatus includes a case, a plurality of battery modules mounted in multiple stages in the case, a plurality of cooling blocks respectively attached to the battery modules and defining a cooling passage, and a support member disposed in contact with an outer side of the battery modules and connected to the battery modules or the cooling blocks to support the battery modules and the cooling blocks.

Abstract: An embodiment battery system cooling apparatus includes a lower case, a plurality of battery modules mounted in multiple stages on an outer surface of the lower case, a plurality of cooling blocks respectively attached to outer surfaces of the battery modules and defining a cooling passage, an upper case coupled to the lower case and covering the battery modules and the cooling blocks, and a cooling hose respectively connected in parallel to the cooling blocks on an outside of the upper case, the cooling hose including an inlet and an outlet for circulation of a cooling medium.

Abstract: A reprint apparatus may include: a defect checking unit configured to check a defective portion in a solder resist layer of a circuit board; a material filling unit positioned above the circuit board to fill the defective portion with a filling material; and a curing unit configured to cure the material filled in the defective portion. The defect checking unit may be configured to calculate a volume of the defective portion, and the material filling unit may be configured to calculate a discharge amount of the filling material based on the calculated volume of the defective portion, and then discharge the filling material by the discharge amount.

Abstract: A microneedle therapy device equipped with a needle cover according to an example embodiment of the present disclosure includes a pneumatic pump, a valve configured to switch a supply and cutoff of a compressed air from the pneumatic pump into the needle cover, a microneedle arranged inside the needle cover and configured to move forward and backward from an opening of the needle cover, and a controller configured to control an opening and closing of the valve and the movement of the microneedle. The controller is configured to control an opening time of the valve based on information input by a user.

Abstract: In one aspect, an electric furnace is provided with a double type melting furnace, which includes: a first upper cell that forms a first upper space of a first melting furnace in which a first iron source is introduced and molten; a second upper cell that is disposed in a horizontal direction of the first upper cell and forms a second upper space of a second melting furnace in which a second iron source is introduced and molten; a lower cell that is combined with lower portions of the first upper cell and the second upper cell and forms a single integrated space in which a first lower space of the first melting furnace and a second lower space of the second melting furnace are integrated; and a partition wall unit that is installed to vertically move up and down between the first upper cell and the second upper cell, and separates the first lower space of the first melting furnace and the second lower space of the second melting furnace, although both of the lower spaces are integrally formed by the lower cel

Abstract: Provided a method for predicting permeability according to the geometrical change in a porous medium on the basis of a superficial effective diameter, wherein the permeability according to geometrical changes in the porous medium is precisely predicted. The method for predicting permeability according to geometric change in the porous medium comprises: providing a porous medium; obtaining first porosity and first permeability at a plurality of points of the porous medium, respectively; calculating a first superficial effective diameter using the first porosity and the first permeability; establishing a first correlation between the first porosity and the first superficial effective diameter, a second correlation between the first permeability and the first superficial effective diameter, and a third correlation between the first porosity and the first permeability; and using the correlations to predict a second permeability for a second porosity changed by a geometrical change in the porous medium.

Abstract: An embodiment battery pack mounting structure for a vehicle includes a side member disposed at a lateral side of a battery pack, the side member including a plurality of partition walls, a side bush fastened passing through the side member vertically and passing through the plurality of partition walls, and a side mounting bolt fastened to a vehicle body while passing through the side bush and the plurality of partition walls.

Abstract: An embodiment battery pack for a vehicle includes a frontward wall and a rearward wall, lateral side walls connecting opposite ends of the frontward and rearward walls to define an accommodating space for accommodating battery modules, a longitudinal member having first and second ends supported on the frontward and rearward walls, respectively, while crossing the accommodating space, a transverse member having first and second ends supported on the lateral side walls, respectively, while intersecting the longitudinal member across the accommodating space, and a reinforcing bracket disposed at an intersection between the longitudinal member and the transverse member, the reinforcing bracket increasing a coupling rigidity between the longitudinal member and the transverse member so that the coupling rigidity with the reinforcing bracket is greater than the coupling rigidity of the same structure without any reinforcing bracket.

Abstract: An embodiment battery pack structure for a vehicle includes a supplying channel configured to supply a refrigerant, a discharging channel disposed such that the refrigerant flows therein in parallel with the supplying channel, and a plurality of cooling channels disposed in parallel between the supplying channel and the discharging channel such that the refrigerant can flow under a plurality of battery modules disposed between the supplying channel and the discharging channel.