Abstract: The present invention relates to a method of diagnosing and treating endometrial cavity-distorting leiomyoma using microRNA, and particularly, a composition and a kit for diagnosing uterine leiomyoma, the composition and the kit including an agent capable of detecting a microRNA expression level in a biological sample; a method of diagnosing uterine leiomyoma of a subject, the method including measuring a microRNA expression level in a biological sample from the subject, and diagnosing that the subject has uterine leiomyoma having endometrial cavity distortion or uterine leiomyoma having a likelihood of developing endometrial cavity distortion, when the microRNA expression level is downregulated; and a method of treating uterine leiomyoma, the method including measuring a microRNA expression level in a biological sample from a subject, and performing uterine leiomyoma treatment when the microRNA expression level is downregulated.

Abstract: The present invention provides a mode conversion reflector provided on an edge surface of an elastic medium, capable of mode-converting an incident ultrasonic wave with high efficiency and simultaneously reflecting the wave in a desired direction. The mode conversion reflector according to the embodiment includes an elastic medium; and a reflective layer formed of a non-planar structure on an edge surface of the elastic medium, in which an interference phenomenon caused by diffraction of wave occurs by the reflective layer, so that an ultrasonic wave incident through the elastic medium is mode-converted and reflected in a predetermined direction.

Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery using the same, and more particularly, to a bimodal-type positive electrode active material including a first lithium composite oxide as a small particle and a second lithium composite oxide as a large particle, which improves the transport ability of lithium ions by controlling the morphology or crystal structure of the small particle included in the positive electrode active material, and further alleviates or prevents the early deterioration or shortened lifetime of the bimodal-type positive electrode active material, caused by the small particle, by increasing the particle stability of the small particle, and a lithium secondary battery using the same.

Abstract: Provided is a nipple patch for covering a male nipple. The nipple patch includes a spider film with an orb web structure to enhance nipple coverage and a finishing film to maximize the coverage of the nipple patch. In addition, the nipple patch provides a soft feel, enables the skin to move freely, and can be easily attached to skin around the nipple. The nipple patch includes a shield covering and protecting a nipple, a flexible adhesive film having adhesion to the skin around the nipple and having a center portion to which the shield is attached, and a spider film attached to a rear surface of the adhesive film, having lower flexibility than the adhesive film, and having an orb web structure to prevent the adhesive film from being stretched.

Abstract: A semiconductor device is provided. The semiconductor device includes a substrate, an active pattern extending in a first direction on the substrate, a gate electrode extending in a second direction intersecting the first direction on the active pattern, a gate spacer extending in the second direction along side walls of the gate electrode, an interlayer insulating layer contacting side walls of the gate spacer, a trench formed on the gate electrode in the interlayer insulating layer, a first capping pattern provided along side walls of the trench, at least one side wall of the first capping pattern having an inclined profile, and a second capping pattern provided on the first capping pattern in the trench.

Abstract: An embodiment of the present disclosure provides a voltage converter including: an inductor in which a first electrode thereof receives an input voltage and a second electrode thereof is connected to a first node; a first transistor in which a first electrode thereof is connected to the first node and a second electrode thereof is connected to a second node providing an output voltage; a second transistor in which a first electrode thereof is connected to the first node and a second electrode thereof is connected to a reference terminal; and a current sensor connected to the first node and the second node, wherein the current sensor includes: a third transistor in which a first electrode thereof is connected to the first node and a second electrode thereof is connected to a third node; and a current mirror circuit that mirrors currents flowing through the second node, the third node, and a sensing terminal.

Abstract: A modeling method for designing a flow field of a fuel cell including a membrane electrode assembly including a catalyst layer and an electrolyte membrane, a gas diffusion layer, a flow field, and a bipolar plate includes modeling using a numerical model derived from a governing equation including a mass conservation equation of species, a fluid momentum in a porous media, and a modified Butler-Volmer's equation and outputting an oxygen diffusion characteristic in a catalyst layer from the modeling result.

Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a bimodal-type positive electrode active material including a first lithium composite oxide as a small particle and a second lithium composite oxide as a large particle, wherein the positive electrode active material may uniformly improve the particle stability of the small particle and the large particle by controlling a slope of a concentration gradient in which cobalt in the small particle and the large particle decreases from a surface portion toward a central portion, a positive electrode including the positive electrode active material, and a lithium secondary battery using the positive electrode.

Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a positive electrode active material including a lithium composite oxide containing at least nickel and cobalt, wherein since the cobalt in the lithium composite oxide has a concentration gradient having at least different slopes from a surface portion toward a central portion, it is possible to improve the stability of particles not only in a surface portion of the lithium composite oxide but also in a central portion thereof, a positive electrode including the positive electrode active material, and a lithium secondary battery using the negative electrode.

Abstract: A DC-DC includes a sensor, a determiner, a reference voltage controller and an output voltage controller. The sensor is configured to sense an output voltage to generate a sensed signal. The determiner is electrically connected to the sensor and is configured to determine a difference between the sensed signal and a first protection level for generating a determiner output. The reference voltage controller is electrically connected to the determiner and is configured to generate a second reference voltage based on a first reference voltage and a value of the determiner output. The output voltage controller is electrically connected to the sensor and is configured to output the output voltage based on an input voltage, a feedback voltage of the output voltage, and the second reference voltage.

Abstract: A direct current-to-direct current (“DC-DC”) converter includes: a first converter which outputs a first power voltage in a normal mode or a power saving mode based on a inductor current generated therein, where the first converter operates in a first driving manner in the normal mode, and operates in a second driving manner in the power saving mode; a second converter which outputs a second power voltage based on a inductor current generated therein, where the second converter operates in a third driving manner in the power saving mode, and a magnitude of the second power voltage in the power saving to mode is different from that in the normal mode; and a mode selector which supplies a mode control signal to the first and second converters, where the first and second converters are driven in the normal mode or the power saving mode based on the mode control signal.

Abstract: A method for cultivating functional crops using nano organic germanium and nano organic selenium, includes performing irrigation or foliar fertilization on plants of the crops with nanoscaled organic germanium and nanoscaled organic selenium, which are prepared in nanoscale sizes by performing one or two or more selected from a method of applying physical energy (heat or pressure) to organic germanium and organic selenium, a method of applying electrical explosive energy, and a chemical bonding process, at least twice at the time when the plants of the crops are most vigorously grown and developed and at the time of maturation to bear fruit, wherein the prepared nanoscaled organic germanium and nanoscaled organic selenium are one-component materials which are dispersed in water as a solvent in a nanoscale state.

Abstract: A display device includes a display panel which displays an image, a data driver which supplies a plurality of data signals to the display panel, a first power supply which supplies a data driving voltage to the data driver through a first power supply line, and a second power supply which supplies a first driving voltage to the display panel through a second power supply line. The first power supply senses a voltage of the second power supply line and controls the supply of the data driving voltage based on a sensed voltage during an initial driving period, in which the first power supply generates the data driving voltage and the second power supply does not generate the first driving voltage.

Abstract: Disclosed is a knee joint guide apparatus which can be driven even at any point on a plane in which an instantaneous rotation center of a knee joint can be positioned by a self-alignment function, and can also implement output performance required for a walking operation through a mechanical advantage change depending on a flexion angle. The knee joint guide apparatus includes: a proximal body link provided above a knee joint; a distal body link provided at a location corresponding to the proximal body link below the knee joint; and a planar rigid body 6-bar linkage mechanism including a plurality of revolute joints and a plurality of prismatic joints, and a plurality of links between the proximal body link and the distal body link to output a mechanical advantage depending on a flexion angle of the knee joint in movement of the knee joint with a self-alignment function.

Abstract: Provided is a method of manufacturing a semiconductor device. The method includes providing a substrate in which a main area including a first cell area and a first peripheral area, and an edge area including a second cell area and a second peripheral area are defined, sequentially forming a mold layer, a supporter layer, a mask layer, and a preliminary pattern layer on the substrate, exposing the preliminary pattern layer to light to simultaneously form a first pattern and a second pattern on the mask layer of the first cell area and the second cell area, respectively, forming an etch stop layer on the second pattern and etching the mask layer using the etch stop layer and the first pattern to form a hole pattern in the mold layer and the supporter layer of the first cell area.

Abstract: An embodiment of the present disclosure provides a voltage converter including: an inductor in which a first electrode thereof receives an input voltage and a second electrode thereof is connected to a first node; a first transistor in which a first electrode thereof is connected to the first node and a second electrode thereof is connected to a second node providing an output voltage; a second transistor in which a first electrode thereof is connected to the first node and a second electrode thereof is connected to a reference terminal; and a current sensor connected to the first node and the second node, wherein the current sensor includes: a third transistor in which a first electrode thereof is connected to the first node and a second electrode thereof is connected to a third node; and a current mirror circuit that mirrors currents flowing through the second node, the third node, and a sensing terminal.

Abstract: An exemplary embodiment provides matching media for perfect transmission of ultrasonic waves by easily implementing perfect transmission of ultrasonic waves at a boundary between different elastic media through a matching layer provided at the boundary between the different elastic media and proposing a matching layer having a single layer structure of a simple single pattern that is easily processed, thereby easily implementing effects such as miniaturization of the matching layer, reduction of manufacturing cost, and improvement of manufacturability.

Abstract: A water pocket with an open top side is filled with water, mounted in a regular position on a supporting frame, and tilts to supply the water stored in the water pocket to an ice making tray, thereby easily supplying a required amount of water to the ice making tray. A refrigerator includes an ice making tray provided to linearly move with rotation when ice of the ice making tray is separated, or includes a holding preventing member which prevents the ice from being caught by a lower ice making tray, thereby improving a forward-and-backward width of an ice maker. It is possible to easily withdraw ice stored in an ice bucket by pushing an ice discharge button in a state in which the ice bucket is not separated.

Abstract: A power voltage generator includes a first sensor, a second sensor, a comparator and a shutdown controller. The first sensor is configured to sense a first power voltage output node that outputs a first power voltage. The second sensor is configured to sense a second power voltage output node that outputs a second power voltage. The comparator is configured to compare a first sensing signal of the first sensor with a second sensing signal of the second sensor. The shutdown controller is configured to shut down the power voltage generator based on a comparison signal from the comparator.