Abstract: An ultrasonic linear motor according to one embodiment is disclosed. The vibrating body includes an elastic body and a first piezoelectric element and a second piezoelectric element which are attached to two surfaces of the elastic body, a first weight and a second weight which are disposed on two side end portions of the vibrating body, a moving shaft which is coupled to a central portion of the vibrating body and moves according to a displacement of each of the piezoelectric elements, and a moving body which is fitted to the moving shaft and moves on the moving shaft.

Abstract: Proposed is a method of manufacturing an antibacterial mobile phone case using a TPU antibacterial masterbatch. The method includes: (a) preparing an antibacterial masterbatch by dispersing an antibacterial agent and an additive in thermoplastic polyurethane and then performing extrusion molding; (b) preparing an antibacterial masterbatch by dispersing an antibacterial agent and an additive in thermoplastic polyurethane and then performing extrusion molding; (c) dispersing and mixing the color masterbatch prepared in step (a) in thermoplastic polyurethane; (d) dispersing and mixing the antibacterial masterbatch prepared in step (b) in thermoplastic polyurethane; and (e) dispersing the material mixed in step (c) and the material mixed in step (d) and then performing injection molding.

Abstract: A lighting device disclosed in an embodiment of the invention includes a substrate; a plurality of light emitting devices on the substrate; a first reflective layer on the substrate; a resin layer on the first reflective layer and including a first surface from which light emitted from the light emitting device is extracted; a second reflective layer on the resin layer; and a light extraction layer on the first surface of the resin layer, wherein the first surface of the resin layer has a convex portion having a convex exit surface facing to each of the light emitting devices, and concave portions between the convex portions, and the light extraction layer may include a first extraction portion having protrusions on each exit surface, and second extraction portions concave between the plurality of protrusions.

Abstract: A light-emitting device includes an emission array including a plurality of light-emitting elements and a partition wall. The emission array includes a first region and a second region adjacent to each other. The partition wall is configured to isolate the first region and the second region from each other, such that the partition wall at least partially defines the first region in the emission array. The first region is associated with a first emission factor and the second region is associated with a second emission factor, the second emission factor different from the first emission factor.

Abstract: To prevent vertical vibration of track rollers as much as possible when transferring between overhanging portions of each core metal while securing the flexibility of a crawler main body. The present invention includes core metals 10 embedded in a crawler main body 9 at substantially equal intervals, and rolling paths 12, 13 for track rollers arranged on both sides in a crawler width direction of an anti-tread side of the crawler main body 9, and includes overhanging portions 24 to 27 on both sides in a crawler rotation direction of each core metal 10, overhanging from each core metal 10 toward both sides in the crawler rotation direction to support each of the rolling paths 12, 13. The respective overhanging portions 24 to 27 corresponding to the respective rolling paths 12, 13 of each core metal 10 are arranged such that at least tip portions are arranged so as to shift in the crawler width direction within a width of each rolling path 12, 13.

Abstract: A light source module including: a printed circuit board; a light emitting device mounted on the printed circuit board and including a plurality of subarrays each of the plurality of subarrays including a plurality of light emitting cells; and a plurality of driving chips mounted on the printed circuit board, wherein each of the plurality of driving chips respectively drives a corresponding one of the plurality of subarrays, wherein the plurality of subarrays are electrically isolated from each other.

Abstract: A memory device including a plurality of memory cells, a peripheral circuit, and control logic. The peripheral circuit is configured to generate a plurality of operating voltages used in a memory operation, based on a target pump clock, and perform the memory operation by using the plurality of operating voltages. The control logic is configured to select the target pump clock among a plurality of pump clocks, based on a number of data bits which selected memory cells on which the memory operation is to be performed among the plurality of memory cells store, and control the peripheral circuit to perform the memory operation on the selected memory cells.

Abstract: Disclosed is a BOG reliquefaction system. The BOG reliquefaction system includes: a compressor compressing BOG; a heat exchanger cooling the BOG compressed by the compressor through heat exchange using BOG not compressed by the compressor as a refrigerant; a pressure reducer disposed downstream of the heat exchanger and reducing a pressure of fluid cooled by the heat exchanger; and a second oil filter disposed downstream of the pressure reducer, wherein the compressor includes at least one oil-lubrication type cylinder and the second oil filter is a cryogenic oil filter.

Abstract: An apparatus for estimating a state of a battery includes a memory configured to store a program of a neural network including a plurality of pre-trained predictive models and an adaptive hidden layer; and includes at least one processor configured to execute the program. The program includes an instruction for receiving battery data of a target battery, inputting the battery data to the adaptive hidden layer, selecting one predictive model from the plurality of pre-trained predictive models through the adaptive hidden layer, inputting the battery data to the selected predictive model, and outputting prediction data for a remaining useful life of the target battery through the selected predictive model.

Abstract: A lighting device disclosed in an embodiment of the invention includes a substrate; a plurality of light emitting devices on the substrate; a first reflective layer on the substrate; a resin layer on the first reflective layer and including a first surface from which light emitted from the light emitting device is extracted; a second reflective layer on the resin layer; and a light extraction layer on the first surface of the resin layer, wherein the first surface of the resin layer has a convex portion having a convex exit surface facing to each of the light emitting devices, and concave portions between the convex portions, and the light extraction layer may include a first extraction portion having protrusions on each exit surface, and second extraction portions concave between the plurality of protrusions.

Abstract: An apparatus includes a servo motor being configured to drive a traveling part for transferring an object along a traveling rail, a servo driver being configured to control an operation of the servo motor with adjusting a torque of the servo motor according to a load level, an overload determination unit being configured to check a degree of overload of the servo driver and a motion controller being configured to generate a speed signal and a speed profile according to a transfer command which a control unit of controlling an operation of the traveling part transmits thereto, the motion controller generating either a normal speed profile when the servo driver is not at an overload state or a corrected speed profile when the servo driver is at the overload state, and transmitting the speed signal and the speed profile to the servo driver.

Abstract: A method of predicting joining strength of joined dissimilar materials, includes performing a joining strength test on a plurality of specimens of joined dissimilar materials each having different joining information, and acquiring force-displacement data on a basis of the joining information; constructing, in a prediction system, an artificial neural network model for predicting the force-displacement data and the joining strengths from the joining information; learning the artificial neural network model by inputting the force-displacement data to the prediction system, the force-displacement data obtained through the joining strength test; inputting joining information to be predicted to the prediction system by using a computer running a software for performing prediction for the joining strength and connected to a host computer of the prediction system through a network; and predicting, by the learned artificial neural network model, force-displacement value and joining strength.

Abstract: According to an embodiment, a mousepad comprises a cover layer and an integrated keypad. The cover layer has a lateral extension and an upper surface which is usable for placement (placing, putting down) of a computer mouse. The keypad covers a part of said lateral extension. In an area not covered by the keypad there is a mouse parking area. The mousepad comprises a mouse detector associated with the mouse parking area and a corresponding control unit. The control unit is configured such that the keyboard gets activated when the mouse is inside the mouse parking area and gets deactivated when the mouse is outside the mouse parking area.

Abstract: A lighting device disclosed in an embodiment of the invention includes a substrate; light sources disposed on the substrate; and a resin layer disposed on the substrate and the light sources. a first reflective layer disposed on the resin layer, wherein the resin layer includes an exit surface facing the light sources, and the exit surface of the resin layer includes convex portions facing each of the light sources and recess portions respectively disposed between the plurality of convex portions, concave surfaces disposed in each of the plurality of recess portions may have a curvature, and a radius of curvature of the concave surfaces may increase in one direction.

Abstract: According to the present technology, a memory device may include memory cells configured to be programmed so that each of the memory cells has a threshold voltage corresponding to any one of a plurality of program states, a peripheral circuit configured to perform a read operation or a program operation on the memory cells, and control logic configured to control the peripheral circuit to perform a test read operation of reading the memory cells using a test read voltage that is any one read voltage among preset default read voltages, and perform a refresh program operation of applying a refresh program voltage to some memory cells among the memory cells according to the number of memory cells having a threshold voltage greater than the test read voltage.

Abstract: In one example, a semiconductor structure comprises a frontside substrate comprising a conductive structure, a backside substrate comprising a base substrate and a cavity substrate contacting the base substrate, wherein the backside substrate is over a top side of the frontside substrate and has a cavity and an internal interconnect contacting the frontside substrate, and a first electronic component over the top side of the frontside substrate and in the cavity. The first electronic component is coupled with the conductive structure, and an encapsulant is in the cavity and on the top side of the frontside substrate, contacting a lateral side of the first electronic component, a lateral side of the cavity, and a lateral side of the internal interconnect. Other examples and related methods are also disclosed herein.

Abstract: A lighting device disclosed in an embodiment of the invention includes a substrate; a light source including a plurality of light emitting devices disposed on the substrate; a resin layer disposed on the substrate; and a first diffusion layer disposed on the resin layer, wherein the resin layer includes a first resin portion disposed on the light source, and a second resin portion adjacent to the first resin portion and disposed on the substrate. The upper surface of the first resin portion has an inclination and is spaced apart from the first diffusion layer, the second resin portion includes a material different from that of the first resin portion, and the second resin portion based on the upper surface of the substrate. The height of the upper surface may be greater than the lowermost height of the upper surface of the first resin portion.

Abstract: Provided is a system for recognizing a user hand gesture and providing virtual reality content based on deep learning using transfer learning. The system includes a head mounted display (HMD) configured to display, to a user, virtual reality content based on a hand gesture, a hand gesture sensor configured to acquire hand data of the user, and a controller device configured to receive the hand data and convert the received hand data into hand gesture data, manage a hand gesture recognizer on the basis of deep learning, and perform content execution management.

Abstract: According to an embodiment, a mousepad comprises a cover layer and an integrated keypad. The cover layer has a lateral extension and an upper surface which is usable for placement (placing, putting down) of a computer mouse. The keypad covers a part of said lateral extension. In an area not covered by the keypad there is a mouse parking area. The mousepad comprises a mouse detector associated with the mouse parking area and a corresponding control unit. The control unit is configured such that the keyboard gets activated when the mouse is inside the mouse parking area and gets deactivated when the mouse is outside the mouse parking area.

Abstract: Disclosed is a BOG reliquefaction system. The BOG reliquefaction system includes: a compressor compressing BOG; a heat exchanger cooling the BOG compressed by the compressor through heat exchange using BOG discharged from a storage tank as a refrigerant; a bypass line through which the BOG is supplied to the compressor after bypassing the heat exchanger; a second valve disposed on a second supply line through which the BOG used as the refrigerant in the heat exchanger is supplied to the compressor, the second valve regulating a flow rate of fluid and opening/closing of the second supply line; and a pressure reducer disposed downstream of the heat exchanger and reducing a pressure of fluid cooled by the heat exchanger, wherein the compressor includes at least one oil-lubrication type cylinder and the bypass line is joined to the second supply line downstream of the second valve.