Abstract: Proposed is a method for product recommendation by a server. The method may include receiving a gift recommendation request from a first user terminal for a second user, checking available basic information of the second user, and determining a first recommendation information based on the basic information, wherein the first recommendation information comprises a first recommendation reason and at least one product related to the first recommendation reason. The method may also include determining a second recommendation information not based on the basic information, wherein the second recommendation information comprises a second recommendation reason and at least one product related to the second recommendation reason. The method may further include providing recommendation information comprising the first and second recommendation information to the first user terminal. The first recommendation information may be prioritized for display over the second recommendation information.

Abstract: Disclosed are a system and method for analyzing a stool image, which derive the state of the large intestine of a user by analyzing a stool image by using a pre-trained deep learning model. The system for analyzing a stool image may include an input unit configured to receive stool images of a user, a data set generation unit configured to generate a data set by grouping the stool images in chronological order, an analysis unit configured to derive information on a stool state of the user or information on a state of the large intestine of the user by analyzing the data set, and an output unit configured to output the information on the stool state or the information on the state of the large intestine. The endoscopic activity of ulcerative colitis can be predicted from a camera image of stool even without performing a colonoscopy.

Abstract: A thin film deposition method may include preparing a substrate structure having an opening region formed in a vertical direction and a plurality of holes formed in a horizontal direction in each of two side portions exposed by the opening region, and adsorbing an inhibitor to surfaces of the substrate structure so that an adsorption density of the inhibitor outside of the plurality of holes is higher than an adsorption density inside of the plurality of holes by adsorbing the inhibitor in a deposition environment in which a gas diffusivity is larger in the vertical direction than in the horizontal direction. A deposition process of a material film on the inside and outside of the plurality of holes is then performed, wherein a deposition rate of the material film may vary according to the adsorption density of the inhibitor.

Abstract: A thin film deposition method and a method of fabricating an electronic device using the same are disclosed. The thin film deposition method may include preparing a substrate structure having a pattern portion including a hole, adsorbing a reaction inhibitor to inside and outside of the hole in the substrate structure, wherein an adsorption density of the reaction inhibitor may be lower in the inside than the outside, and depositing a metal layer on the inside and outside the hole by an atomic layer deposition (ALD) process, wherein a deposition rate of the depositing may vary depending on regions by the reaction inhibitor, and wherein the reaction inhibitor may include a metal atom and a ligand for reaction inhibition bonded to the metal atom, and the metal atom may remain on the substrate structure in the depositing the metal layer.

Abstract: A linear actuator having a free fall function. The linear actuator moves a piston-rod member back and forth using torque of a rotary motor. Here, the piston-rod member is disposed within a portion of a cylinder body to be movable back and forth. In the event of jamming in which the piston-rod member is stopped due to sticking between an operating nut and a screw member, the piston-rod member is caused to freely fall in a direction in which load is applied. This can consequently obtain the maximum stretched length of the piston-rod member, thereby providing safety in an emergency.

Abstract: The present invention suggests a holographic optical element which forms a pattern according to a transmissive hologram recording method based on a multi-diverging object beam and a reference beam, a method for generating the same, and a screen device including the holographic optical element. The holographic optical element according to the present invention includes a base film and a pattern which is formed on the base film by using a transmissive hologram recording method based on a multi-diverging object beam and a reference beam.

Abstract: The present invention suggests a holographic optical element which forms a pattern according to a transmissive hologram recording method based on a multi-diverging object beam and a reference beam, a method for generating the same, and a screen device including the holographic optical element. The holographic optical element according to the present invention includes a base film and a pattern which is formed on the base film by using a transmissive hologram recording method based on a multi-diverging object beam and a reference beam.