Abstract: The present invention relates to a method for stabilizing ceramide and to a cosmetic composition containing stabilized ceramide and, more specifically, to a method for homogenizing and stabilizing ceramide by self-assembling the ceramide together with ?-sitosterol, resveratrol, and allantoin which are other physiologically active substances using a microfluidic chip and a high pressure homogenizer, and to a technique for using ceramide and nanoparticles containing ?-sitosterol, resveratrol, and allantoin, which are produced by means of the stabilizing method, as a cosmetic material for skin moisturizing, anti-oxidation, skin inflammation relief, skin barrier enhancement, and skin itching relief.

Abstract: A method for isolating a lithium precursor according to an embodiment of the present disclosure includes preparing a preliminary precursor mixture including a preliminary lithium precursor and a preliminary transition metal precursor, mixing the preliminary precursor mixture and a precipitation liquid in a reactor to form a precursor mixture, and injecting a non-reactive gas into the precursor mixture. Accordingly, the lithium precursor can be isolated with high yield and high efficiency.

Abstract: A strength assist device includes: a multi-link part including one or more links; a profile controller that is connected to one end portion of the multi-link part, and rotates around a central rotational axis; and an elastic force providing part that is connected to the other end portion of the multi-link part, and provides an elastic force to the multi-link part. When the profile controller rotates and one end portion of the multi-link part revolves around the central rotational axis, the elastic force applied to the multi-link part varies.

Abstract: A gravity compensator applied to a wearable muscular strength assisting apparatus includes a first link configured to extend parallel to a first body portion of a wearer, a second link configured to extend parallel to a second body portion and which is rotatably coupled to an end of the first link, an elastic body, which is fixed at an end thereof to the first link so as to exert an elastic force, which varies according to a length between the two ends thereof, and a connection unit, which is connected an end thereof to the other end of the elastic body and extends in a longitudinal direction of the first link and which is connected at an end thereof to the second link so as to vary a length of the elastic body by relative rotation between the first link and the second link.

Abstract: Austenitic stainless steel includes 16 to 26 wt % of chromium (Cr), 8 to 22 wt % of nickel (Ni), 0.02 to 0.1 wt % of carbon (C), 0.2 to 1 wt % of niobium (Nb), and 2 to 3.5 wt % of manganese (Mn), and has an austenite matrix, wherein a nanosized niobium carbide (NbC) is precipitated in the austenite matrix, and the nanosized niobium carbide is uniformly dispersed in the austenite matrix. The austenitic stainless steel may further include 0.5 to 1.5 wt % of molybdenum (Mo).

Abstract: An upper arm module of a wearable muscular strength assisting apparatus is provided. The upper arm module includes a base part configured to be connected to a wearer's body, and an upper arm part having a first end thereof coupled to the base part to be rotatable about a fixed point. The upper arm part is coupled to the wearer's upper arm to apply a torque thereto. The upper arm module further includes an elastic body having a first end thereof fixedly coupled to the upper arm part and generating an elastic force by deformation. In particular, the upper arm module also includes a first link having a first end thereof rotatably coupled to the base part at a point of application, and a second link rotatably coupled to the second end of the first link at a first point.

Abstract: The present invention relates to a composition comprising an inotodiol compound for prevention, alleviation, or treatment of muscular diseases. The composition increases skeletal muscle mass and promotes the regeneration of muscle fibers through self-renewal acceleration of muscle stem cells and differentiation promotion of myoblasts, and reinforces muscular strength by inducing the activation of mitochondrial functions, whereby the composition has prophylactic and therapeutic effects on various muscular diseases and an effect of increasing motor ability by reinforcing muscular strength.

Abstract: An upper arm module of a wearable muscular strength assisting apparatus is provided. The upper arm module includes a base part configured to be connected to a wearer's body, and an upper arm part having a first end thereof coupled to the base part to be rotatable about a fixed point. The upper arm part is coupled to the wearer's upper arm to apply a torque thereto. The upper arm module further includes an elastic body having a first end thereof fixedly coupled to the upper arm part and generating an elastic force by deformation. In particular, the upper arm module also includes a first link having a first end thereof rotatably coupled to the base part at a point of application, and a second link rotatably coupled to the second end of the first link at a first point.

Abstract: In a method for recovering an active metal of a lithium secondary battery, positive electrode active material particles including a lithium-transition metal oxide is prepared. The positive active material particles are treated by reduction. The reduction-treated positive active particles are subjected to ultrasonic dispersion and hydration. The hydrated transition metal slurry is recovered. The recovery rate of lithium and transition metal can be increased by disaggregation through ultrasonic dispersion.

Abstract: A horizontally movable bowling bag providing ease of use and maintenance, the bowling bag includes: a frame having a space defined therein to store a plurality of bowling balls; a ball support assembled to or integrally formed with the frame to support each of the plurality of bowling balls in the space; casters provided at a lower side of the frame to allow the frame to move in a horizontal direction, each of the plurality of casters comprising a coupling member removably coupled thereto so as to be exposed to an outside of the frame, a fixing boss fixed in a support hole in the frame using the coupling member, and a drive wheel coupled to a lower end of the fixing boss so as to be freely rotatable; and a handle integrally coupled to one side of the frame, the handle being configured to be adjustable in length.

Abstract: This application sets forth techniques for variant testing at scale. In particular, the embodiments set forth provide systems and methods for testing, on a large-scale software application store, visual aspects of one or more variants of representative data associated with an application available through the software application store. According to some embodiments, a method may include using a subset of conversion data associated with a control object and a subset of the conversion data associated with at least one variant object to compute at least one conversion metric for the control object and at least one conversion metric for the at least one variant object. The method may also include generating a performance measurement by applying at least one statistical hypothesis testing function to the at least one conversion metric for the control object and the at least one conversion metric for the at least one variant object.

Abstract: An embodiment device includes an input module including a motor configured to generate a rotational force, an output module configured to receive power from the input module to be rotatable, and a connection module having a first side coupled to the input module and a second side, opposite the first side, coupled to the output module, wherein the connection module is configured to transmit the power from the input module to the output module.

Abstract: A multi-purpose casing having a heavy-article support tray integrally formed therewith is moveable horizontally in a state of accommodating a plurality of bowling balls and is capable of reliably supporting heavy articles by integrally forming a plurality of space support trays for supporting heavy articles with a body defining the external appearance of the casing.

Abstract: A horizontally movable bowling bag providing ease of use and maintenance, the bowling bag includes: a frame having a space defined therein to store a plurality of bowling balls; a ball support assembled to or integrally formed with the frame to support each of the plurality of bowling balls in the space; casters provided at a lower side of the frame to allow the frame to move in a horizontal direction, each of the plurality of casters comprising a coupling member removably coupled thereto so as to be exposed to an outside of the frame, a fixing boss fixed in a support hole in the frame using the coupling member, and a drive wheel coupled to a lower end of the fixing boss so as to be freely rotatable; and a handle integrally coupled to one side of the frame, the handle being configured to be adjustable in length.

Abstract: A storage device can guarantee data write-requested from a host. The storage device includes: a buffer memory for storing data write-requested from the host; a memory device including user blocks, reserved blocks which substitute for the user blocks, and power loss protection blocks for storing buffer data stored in the buffer memory when a sudden power loss occurs, in which a power supply is abnormally interrupted; and a memory controller for determining whether any memory block capable of storing the write-requested data among the user blocks and the reserved blocks exists in response to a write operation error of the user blocks and the reserved blocks, and changing to a user block, one or more power loss protection blocks among the power loss protection blocks according to whether any memory block capable of storing the write-requested data exists.

Abstract: A power control device configured for diagnosing an open-circuit fault occurring in a power system of an autonomous vehicle and an open-circuit diagnosis method thereof, may include a power control switch that selectively connects or separates main power output from the first power supply and auxiliary power output from the second power supply, and a processor that determines a possibility of an open-circuit fault of a vehicle power source based on a current flowing through the power control switch and determines whether it is possible to drive an electric load with an output power of the second power supply alone and determine an open-circuit position based on an output of the first power supply when there is the possibility of the open-circuit fault.

Abstract: The present invention relates to a use of a cell adhesion molecule-related/down-regulated by oncogene (Cdo) protein or a gene encoding the same for preventing or treating neuromuscular diseases caused by damage to motor neurons, particularly muscle stem cells and neuromuscular junctions, due to aging, oxidative stress, and the like; and a method for screening for candidates for activating the expression of Cdo. When Cdo is deleted in motor neurons or neuromuscular junctions, aggravation of damage to degenerative motor neurons due to aging, and DNA damage caused by oxidative stress and inflammation are caused, which may cause neuromuscular diseases. Thus, the diseases can be treated through overexpression and activity of the Cdo protein and the gene encoding the same.

Abstract: A movable object includes an upper frame and a drive part that is provided under the upper frame and is connected to the upper frame. The drive part includes a first actuator that is connected to the upper frame and rotates on a vertical axis, a first link that is connected to the first actuator and rotatable on the vertical axis by the first actuator, a second actuator that is provided on a first side of the first link and rotates on a horizontal axis, and a second link that faces the first link and is rotatable on a first end portion thereof facing the first link by the second actuator.

Abstract: A method for preparing a pretreated product for recovering valuable metals of a lithium secondary battery includes: preparing a cathode active material mixture from a cathode of the lithium secondary battery; drying or pulverizing the cathode active material mixture; and classifying the dried or pulverized cathode active material mixture to have an average particle diameter (D50) of 400 ?m or less. Flowability may be increased by reducing the average particle diameter before reduction treatment.

Abstract: In a method for recycling a lithium precursor of the present invention, cathode active material powders including lithium composite oxide particles and having different particle sizes are prepared. A preliminary precursor mixture is prepared by reducing the cathode active material powders in a fluidized bed reactor including a reactor body whose cross-sectional diameter is decreased stepwise or gradually from an upper portion to a lower portion. Subsequently, a lithium precursor is recovered from the preliminary precursor mixture.