Abstract: Provided is a holographic optical element printing method using a tunable focus lens and a rotating mirror. According to an embodiment, a holographic printer includes: a first optical engine and a second optical engine configured to adjust a phase of an incident collimated beam and emit the collimated beam; and a first reduction optical system and a second reduction optical system configured to reduce the beam emitted from the first optical engine and the second optical engine and to allow the beam to enter a holographic material, wherein each of the first optical engine and the second optical engine includes: a rotating mirror configured to reflect while adjusting the phase of the incident collimated beam through rotation; and a tunable focus lens configured to refract while adjusting the phase of the incident collimated beam reflected from the rotating mirror through focus tuning.

Abstract: Provided is a cognitive experiment method for change in periphery region image quality for parameter determination of a foveated hologram. According to an embodiment, a cognitive experiment method for determining foveated image parameters includes: generating a foveated image which includes a foveal region and a periphery region while reducing image quality regarding the periphery region; displaying the generated foveated image; receiving an input of a response to image quality of the periphery region from a subject; and collecting information regarding appropriate image quality of the periphery region, based on the response inputted by the subject. Accordingly, in applying a foveated hologram generation algorithm for real-time reproduction, various parameters such as a boundary between a foveal region image and a periphery region image in a foveated hologram, and a degree of quality degradation of the periphery region image may be appropriately determined through a cognitive experiment.

Abstract: Provided is a hologram image normalization method for a holographic printer. In a holographic printing method according to an embodiment, generating, encoding, and normalizing for the (n+1)-th hogel are performed in parallel with loading and recording of a normalized hologram for the n-th hogel, and moving and waiting for the (n+1)-th hogel. Accordingly, a global maximum value and a global minimum value for normalization may be calculated as approximate estimation values, and a hologram generation process and a printing process may be performed in parallel, so that a total printing time may be minimized and memory usage may be optimized when holographic printing is performed.

Abstract: Disclosed are an electronic device and method for controlling objects displayed through the electronic device. A method includes displaying a stereoscopic screen including a left-eye screen and a right-eye screen through a display of the electronic device, moving a pointer object in the stereoscopic screen, based on a movement of the electronic device sensed by a sensor of the electronic device, identifying whether the pointer object is positioned at a first position for a predetermined time in the stereoscopic screen, based on information obtained from the sensor, and based on identifying that the pointer object is positioned at the first position for the predetermined time, moving at least one object included in the stereoscopic screen into the first position at which the pointer object is positioned.

Abstract: A deep learning-based coloring system includes a memory network configured to provide a color feature in response to a specific query and a coloring network configured to perform coloring, based on the color feature generated by the memory network. The memory network includes: a query generation unit configured to generate a query; a neighbor calculation unit configured to calculate k-nearest neighbors, based on similarities between the query and key memory values; a color feature determination unit configured to generate color features for indicating color information stored in the key memory; a threshold triplet loss calculation unit configured to calculate a threshold triplet loss, based on a comparison between a threshold and a distance between the color features; and a memory update unit configured to update a memory, based on whether a distance between a top value and a value of a newly input query is within the threshold.

Abstract: Provided is a cough recognition method and device, which can detect cough sounds from an audio signal, and not only can detect coughs but also can track the location at which the cough sounds are generated by calculating the location of a sound source.

Abstract: Disclosed are an electronic device and method for controlling objects displayed through the electronic device. A method includes displaying a stereoscopic screen including a left-eye screen and a right-eye screen through a display of the electronic device, moving a pointer object in the stereoscopic screen, based on a movement of the electronic device sensed by a sensor of the electronic device, identifying whether the pointer object is positioned at a first position for a predetermined time in the stereoscopic screen, based on information obtained from the sensor, and based on identifying that the pointer object is positioned at the first position for the predetermined time, moving at least one object included in the stereoscopic screen into the first position at which the pointer object is positioned.

Abstract: A substrate transfer device includes: a traveling unit including a traveling wheel that travels on a rail to transfer a substrate in a first direction; a rail unit including the rail and a rail protrusion protruding from the rail in a second direction different from the first direction; and a sensor unit including a first sensor and a second sensor, wherein the first sensor senses the traveling unit, and the second sensor senses the rail protrusion, wherein the first and second sensors are placed at the same position as each other along the rail on a basis of the first direction.

Abstract: Disclosed are an electronic device and method for controlling objects displayed through the electronic device. The method includes sensing a movement of the electronic device, outputting a stereoscopic image on a display of the electronic device, moving a first object from a first position to a second position corresponding to the sensed movement in the stereoscopic image, and moving one of the first object and a second object into a position of the other object.

Abstract: A deep learning-based coloring system includes a memory network configured to provide a color feature in response to a specific query and a coloring network configured to perform coloring, based on the color feature generated by the memory network. The memory network includes: a query generation unit configured to generate a query; a neighbor calculation unit configured to calculate k-nearest neighbors, based on similarities between the query and key memory values; a color feature determination unit configured to generate color features for indicating color information stored in the key memory; a threshold triplet loss calculation unit configured to calculate a threshold triplet loss, based on a comparison between a threshold and a distance between the color features; and a memory update unit configured to update a memory, based on whether a distance between a top value and a value of a newly input query is within the threshold.

Abstract: An electronic device and its operating method according to various embodiments, may be configured to provide first content received from an external electronic device to a user waring the electronic device on his/her face using a display of the electronic device, identify a movement of an external object in a visible direction of the user see-through or using the display which provides the first content, and provide second content to the user through at least part of the display so as to display the second content related to the first content in relation to the external object according to the movement.

Abstract: An immersed hollow fiber membrane module according to an embodiment of the present disclosure includes a hollow fiber membrane bundle formed by fixing a plurality of hollow fiber membranes by a potting agent, and a module supporting unit provided at one side of the hollow fiber membrane bundle to support the hollow fiber membrane bundle, the module supporting unit having an air cleaning time delaying portion configured to delay or intermittently maintain an air cleaning time for air introduced therein and discharged out.

Abstract: Disclosed are an electronic device and method for controlling objects displayed through the electronic device. The method includes sensing a movement of the electronic device, outputting a stereoscopic image on a display of the electronic device, moving a first object from a first position to a second position corresponding to the sensed movement in the stereoscopic image, and moving one of the first object and a second object into a position of the other object.

Abstract: An electronic device and its operating method according to various embodiments, may be configured to provide first content received from an external electronic device to a user waring the electronic device on his/her face using a display of the electronic device, identify a movement of an external object in a visible direction of the user see-through or using the display which provides the first content, and provide second content to the user through at least part of the display so as to display the second content related to the first content in relation to the external object according to the movement.

Abstract: Disclosed are an electronic device and method for controlling objects displayed through the electronic device. The method includes sensing a movement of the electronic device, outputting a stereoscopic image on a display of the electronic device, moving a first object from a first position to a second position corresponding to the sensed movement in the stereoscopic image, and moving one of the first object and a second object into a position of the other object.

Abstract: An immersed hollow fiber membrane module according to an embodiment of the present disclosure includes a hollow fiber membrane bundle formed by fixing a plurality of hollow fiber membranes by a potting agent, and a module supporting unit provided at one side of the hollow fiber membrane bundle to support the hollow fiber membrane bundle, the module supporting unit having an air cleaning time delaying portion configured to delay or intermittently maintain an air cleaning time for air introduced therein and discharged out.

Abstract: Disclosed are an electronic device and method for controlling objects displayed through the electronic device. The method includes sensing a movement of the electronic device, outputting a stereoscopic image on a display of the electronic device, moving a first object from a first position to a second position corresponding to the sensed movement in the stereoscopic image, and moving one of the first object and a second object into a position of the other object.

Abstract: Provided is a combined explosion-proof electromotor, which includes a body in which an interior space is formed and whose one end is open in an axial direction, a terminal box whose one end is open in the axial direction so as to face the open end of the body and in which a space is formed to hold terminal cables extending from the outside, and a middle plate that is disposed between the opposing ends of the body and the terminal box which are connected by separate fastening means and that includes terminal insertion holes through which ends of the terminal cables are inserted into the body.

Abstract: A long glass reinforced resin composite of the present invention may comprise two kinds of thermoplastic matrix resin (a1, a2) which have different viscosities and a long glass fiber (B). The method of preparing the long glass reinforced resin composite comprises preparing a LFT (Long fiber thermoplastic) master-batch composition by impregnating the long glass fiber (B) of continuous phase into the low viscosity thermoplastic resin (a2), and compounding the LFT (Long fiber thermoplastic) master-hatch composition with high viscosity thermoplastic resin. The long glass fiber reinforced resin composite of the present invention has excellent mechanical properties such as impact strength, tensile strength, and flexural modulus.