Abstract: Disclosed is a driving system having an oil circulation structure in which churned oil is collected in a housing and in which the collected oil is efficiently distributed to driving structures, which include a motor and a speed reducer, thereby smoothly cooling and lubricating the respective driving structures. In addition, it is possible to adjust the level of the oil depending on whether the driving structures are in a low-load state or a high-load state, thereby improving lubrication and cooling performance.

Abstract: A medium stacking sheet is installed on a rotation shaft of a medium separating and stacking apparatus for stacking or dispensing a medium. The medium stacking sheet includes a body fixed to the rotation shaft and having a plurality of rotation holes which are spaced apart from each other in a rotation direction of the rotation shaft, and a plurality of vanes each including a vane pin rotatably installed in a corresponding rotation hole and a vane piece coupled to the vane pin to stack the medium.

Abstract: Disclosed are: a membrane-electrode assembly having enhanced adhesion and interfacial durability between a polymer electrolyte membrane and electrodes; and a method for manufacturing a membrane-electrode assembly, in which, in forming electrodes by directly coating a catalyst slurry on a polymer electrolyte membrane, adhesion and interfacial durability between the polymer electrolyte membrane and the electrodes can be enhanced without a separate additional step, thus improving both the durability and the productivity of the membrane-electrode assembly. The method comprises the steps of: dispersing a catalyst and an ion conductor in a dispersion medium to obtain a catalyst slurry; applying the catalyst slurry onto a polymer electrolyte membrane; and drying the catalyst slurry applied onto the polymer electrolyte membrane to form an electrode.

Abstract: Disclosed are a carbon-based carrier that is capable of increasing catalyst activity as much as that of a porous type while having excellent durability unique to that of a solid type, a catalyst comprising same, a membrane-electrode assembly comprising same, and a method for preparing same. The carbon-based carrier for a fuel cell catalyst of the present invention is a solid-type carrier, and has an outer surface area of 100-450 m2/g, a mesopore volume of 0.25-0.65 cm3/g, and a micropore volume of 0.01-0.05 cm3/g.

Abstract: Disclosed are a membrane-electrode assembly capable of satisfying both of two requirements of excellent performance and high durability, and a fuel cell including same. The membrane-electrode assembly of the present invention comprises: a first electrode; a second electrode; and an electrolyte membrane between the first and second electrodes, wherein the first electrode includes a first segment having a first durability and a second segment having a second durability that differs from the first durability.

Abstract: Disclosed is a membrane-electrode assembly having increased active area, improved fluid management capability, and decreased gas transfer resistance due to electrodes having patterned structures on both sides. Also disclosed are a method for manufacturing same, and a fuel cell comprising same. A membrane-electrode assembly according to the present invention comprises: a first electrode; a second electrode; and a polymer electrolyte membrane between the first and second electrodes, wherein the first electrode has a first surface facing the polymer electrolyte membrane and a second surface opposite the first surface, the first surface having a first patterned structure, and the second surface having a second patterned structure.

Abstract: Disclosed is a membrane-electrode assembly which can prevent the corrosion of a carbon-based carrier caused by reducing and/or stopping the supply of hydrogen gas, as well as platinum loss caused by such corrosion, without degrading the performance of a fuel cell, and thus can improve the reverse voltage durability of the fuel cell. Also disclosed are a method for manufacturing the membrane-electrode assembly, and a fuel cell including the membrane-electrode assembly. The membrane-electrode assembly according to the present invention includes: an electrolyte membrane having a first surface and a second surface opposite the first surface; an anode on the first surface; an OER catalyst layer on the first surface; and a cathode on the second surface, wherein the OER catalyst layer includes a catalyst for an oxygen-generating reaction, and at least a portion of the OER catalyst layer is disposed on the same layer as the anode.

Abstract: A laundry treating apparatus includes: a drum, a first lifter disposed on an inner circumferential surface of the drum, and a second lifter that is disposed on the inner circumferential surface of the drum at a position rearward of the first lifter. Each of the first lifter and the second lifter includes at least one insertion protrusion. The drum defines: a first group of one or more mounting slots in a first area of the drum; and a second group of one or more mounting slots in a second area of the drum. The second area is disposed rearward relative to the first area and overlaps with at least a portion of the first area of the drum, and the at least one insertion protrusion is configured to selectively insert into the one or more mounting slots in the first group or the second group.

Abstract: A display device includes: a substrate including a display area and a non-display area; a transistor and a light emitting element, which are disposed on the display area; a pad portion disposed in the non-display area, where the pad portion includes a first metal pattern; and a printed circuit board or a data driver, which is connected with the pad portion. The transistor includes a semiconductor layer disposed on the substrate and a source electrode or a drain electrode which is electrically connected with the semiconductor layer. The source electrode or the drain electrode includes a first layer including a first metal, a second layer including a second metal, and a third layer including the first metal, where the first metal pattern includes the first metal, and is connected with the printed circuit board or the data driver.

Abstract: Disclosed are a substrate for a solar cell and a method for manufacturing the same. The method include putting negative and positive electrodes facing away from each other into suspension in which at least two different types of negatively charged cellulose nanofibers are dispersed; applying a voltage across the positive and negative electrodes such that the cellulose fibers are adsorbed onto a surface of the negative electrode; and drying the negative electrode having the cellulose fibers adsorbed thereon.

Abstract: Disclosed is a method for classifying target data into a particular class by distributing a previously learned classification model to a plurality of terminals. A disclosed classification method using a distributed classification model comprises the steps of: receiving classification data which is for target data and generated by means of subclassification models respectively distributed to a plurality of terminals; and determining a final class for the target data by means of the classification data. Each class for classification allocated to the previously learned subclassification models comprises at least one of a plurality of target classes. The number of classes allocated to the respective subclassification models is less than the number of the target classes.

Abstract: This invention relates to a surface modifier for uniformly modifying the surface of a substrate such as an inorganic thin film, using atomic layer deposition or chemical vapor deposition, and a method for modifying the surface of a substrate using the same.

Abstract: A laundry treating apparatus includes: a drum defining a mounting slot and a lifter coupled to the mounting slot and disposed on an inner circumferential surface of the drum. A lifter frame includes: a frame base coupled to the inner circumferential surface; a frame upper plate; a frame sidewall that connects the frame upper plate to the frame base and that defines a lateral through-hole; and an insertion protrusion configured to be inserted into the mounting slot. The insertion protrusion includes a vertical portion that extends downward from a bottom surface of the frame base to the frame base and a catching portion that is curved from a lower end of the vertical portion toward an inside of the periphery of the frame base. A projection plane of the catching portion onto the frame base is positioned within a projection plane of the lateral through-hole onto the frame base.

Abstract: Disclosed are a fuel cell catalyst of which only a portion, which has relatively low catalytic activity and in which the greatest amount of platinum elution occurs and platinum oxide is easily formed, is selectively coated with a protective layer, and thus degradation due to the long-term operation of a fuel cell can be effectively prevented while also minimizing a deterioration in catalytic activity; a manufacturing method therefor; and a membrane-electrode assembly including same. The fuel cell catalyst of the present invention comprises: a nanoparticle containing platinum; and a protective layer which is selectively coated on only a portion of the surface of the nanoparticle and can suppress the oxidation of the platinum through electronic interaction with the nanoparticle.

Abstract: A surgical navigation system according to one embodiment may comprise: an electromagnetic wave generation unit; a first detection unit attached to a surgical site of an object to detect a position attached to the surgical site; a second detection unit installed in a patient-specific surgical guide instrument inserted into the surgical site to receive the electromagnetic wave and detect the position of the patient-specific surgical guide instrument; a third detection unit installed in the surgical instrument inserted into the surgical site to detect the position of the surgical instrument; an information processing unit for registering the position of the first detection unit and the position of the third detection unit and for tracking the position of the surgical instrument on the basis of the position of the first detection unit attached to the surgical site, by setting the position of the patient-specific surgical guide instrument as a reference position when the patient-specific surgical guide instrument

Abstract: Disclosed are a method and an apparatus for managing a user profile. A user profile management method performed by a server according to an example embodiment includes creating a plurality of profiles corresponding to a user account, receiving a view request for a profile of the other user account in a predetermined relationship with the user account from a user terminal logged in with the user account, providing a UI of a profile of the other user account including an interfacing object regarding the profile of the user account to the user account, receiving an input for selecting a profile to be displayed on the other user terminal logged in the other user account, among a plurality of profiles corresponding to the user account through the interfacing object, and matching the other user account with the selected profile.