Abstract: A root airfoil of a wind turbine blade has a suction surface and a pressure surface formed at the upper portion and at the lower portion of a chord line which connects the leading edge and the trailing edge. The operating Reynolds number is 30,000 to 1,000,000, and the angle of attack of the airfoil is 0 to 21 degrees. The maximum lift coefficient is 0.8 to 1.1, and the minimum drag coefficient is 0.02 to 0.07.

Abstract: The present invention provides a mobile terminal capable of executing a plurality of applications, and the mobile terminal comprises: a wireless communication unit including a display unit; and a control unit for controlling the transmission unit so as to transmit information on the second application and controlling the reception unit so as to receive the wireless signal from the external terminal in order to control the second application, controlling the display unit so as to add or change contents constituting the executing screen on the basis of a touch input of a user for controlling the first application.

Abstract: A sub-ambient gas pressure ion separation device is disclosed comprising: an ion entrance aperture having an axis therethrough that extends in a first direction, and an ion exit aperture; wherein the entrance aperture and exit aperture are spatially separated from each other in the first direction and in a second, orthogonal direction; and means for urging ions in said second direction as the ions travel in the first direction, said means for causing ions to separate in said second direction according to a physicochemical property such that ions having a first value, or first range of values, of the physicochemical property exit the device through the exit aperture and other ions having a different value, or different range of values, of said physicochemical property do not exit the device through the exit aperture.

Abstract: An electronic device including a first casing, a second casing, at least one first connecting unit and at least one feeding unit is provided. The first casing includes a conductive material. The second casing includes a conductive material. The first casing and the second casing are conducted with each other through the first connecting unit. The feeding unit is electrically connected to the first casing and has a feeding point and a capacitor component, wherein the capacitor component is connected with the feeding point, and the electronic device forms an antenna structure with the first casing, the second casing, the first connecting unit and the feeding unit and transmits an electromagnetic signal via the feeding unit.

Abstract: An intake valve for an engine supplies an intake gas to a combustion chamber of the engine, and an adiabatic coating layer including a polyamideimide resin and an aerogel dispersed in the polyamideimide resin and having thermal conductivity of 0.60 W/m or less may be formed on a surface portion that comes into contact with a flame during operation of the engine.

Abstract: An apparatus and method for providing primitive visual knowledge are disclosed. The method of providing primitive visual knowledge includes receiving an image in a form of a digital image sequence, dividing the received image into scenes, extracting a representative shot from each of the scenes, extracting objects from frames which compose the representative shot, extracting action verbs based on a mutual relationship between the extracted objects, selecting a frame best expressing the mutual relationship with the objects, which are the basis for the extracting of the action verbs, as a key frame, generating the primitive visual knowledge based on the selected key frame, storing the generated primitive visual knowledge in a database, and visualizing the primitive visual knowledge stored in the database to provide the primitive visual knowledge to a manager.

Abstract: An image sensor includes a semiconductor substrate with at least one recess disposed on its surface and in the photosensitive area defined on the surface of the semiconductor substrate, a first-conductivity-type doped region disposed in the semiconductor substrate and in the photosensitive area, and a second-conductivity-type doped region disposed on the surface of the first-conductivity-type doped region and on the surface of the recess. A photosensitive device of the image sensor is formed of the first-conductivity-type doped region and the second-conductivity-type doped region.

Abstract: Provided in one aspect is a method for handling a frequency priority performed by a terminal in a wireless communication system. The method comprises: receiving minimum priority application request information from a network; and handling a frequency priority for cell reselection on the basis of the minimum priority application request information and the supporting characteristics of the terminal. The minimum priority application request information indicates an application of the minimum priority to a current frequency of the terminal or all frequencies of current radio access technology (RAT) of a cell which the terminal camps on. The supporting characteristic of the terminal is whether the terminal supports the RAT other than the current RAT. The handling of the frequency priority is a variable application of the frequency priority for the cell reselection according to the contents of the minimum priority application request information and the supporting characteristics of the terminal.

Abstract: A fixing structure for heat dissipation element includes a base plate, a heat transfer element, and at least one fixing member. The base plate has a top surface, on which a receiving recess is defined for receiving the heat transfer element therein. At least one clearance is defined between the receiving recess and the heat transfer element. The fixing member has a fixing portion and an extended portion. The fixing portion is connected to the top surface of the base plate, whereas the extended portion is bent and inserted into the clearance to locate between the receiving recess and the heat transfer element, such that the heat transfer element is firmly held in the receiving recess of the base plate.

Abstract: The present invention discloses a magnetic component and which includes a bobbin, a magnetic core assembly, a first winding, and a second winding. The bobbin has a main body, a channel, and a pin holder. The main body has a primary winding section and a secondary winding section. The channel penetrates the main body. The pin holder is extended from a side of the main body. The magnetic core assembly is partially disposed in the channel of the bobbin. The first winding and the second winding respectively have two outlet terminals. The first winding is wound around the primary winding section. The second winding is wound around the secondary winding section. Two outlet terminals of the first winding and two outlet terminals of the second winding are configured in the pin holder.

Abstract: The present application relates to an apparatus for purifying isopropyl alcohol. The present application enables isopropyl alcohol to be obtained in a high purity from a feed comprising water and isopropyl alcohol with a minimum amount of energy consumption.

Abstract: Disclosed are novel Lactobacillus plantarum strains as well as a composition containing the novel Lactobacillus plantarum strains or a culture thereof.

Abstract: The present invention relates to a method and apparatus for transmitting and receiving data. A data transmission method from a sender terminal to a receiver terminal in a MIMO system using a variable frequency band according to one embodiment of the present invention comprises: repeatedly generating a signal field depending on a frequency band that is applied to the transmission of a data frame; generating a data field including the data; generating a data frame including the signal field and the data field; and transmitting the data frame to the receiver terminal. The present invention is advantageous in that a signal field which is transmitted together with the data being transmitted from the sender terminal to the receiver terminal in the MIMO system can be sent more efficiently.

Abstract: A reference voltage generator disclosed herein includes an amplifier including two input terminals connected to a dimming signal and a first node, respectively, and an output terminal, a first transistor including a gate connected to the output terminal of the amplifier and one electrode connected to the first node, second and third transistors configured to form a current mirror, and two resistors connected between one electrode of the second transistor and one electrode of the first transistor.

Abstract: A pre-driver includes a first inverter, a second inverter, an amplifier, a first capacitor, and a second capacitor. The first inverter has an input terminal for receiving an input signal at an input node, and an output terminal coupled to an inner node. The second inverter has an input terminal coupled to the inner node, and an output terminal for outputting an output signal at an output node. The amplifier is configured to amplify the input signal by a gain factor so as to generate an amplified signal and an inverted amplified signal. The first capacitor has a first terminal coupled to the output node, and a second terminal for receiving the amplified signal. The second capacitor has a first terminal coupled to the inner node, and a second terminal for receiving the inverted amplified signal.

Abstract: Provided herein is a power-on reset circuit and a semiconductor memory device having the power-on reset circuit. The power-on reset circuit may include a reference voltage generation circuit configured to generate a reference voltage using an external supply voltage that is externally input, and a power-on reset signal generation circuit configured to generate a power-on reset signal by sensing a potential level of the reference voltage when the external supply voltage increases to a set level or more. The power-on reset signal generation circuit may be configured to, when the reference voltage changes depending on the temperature variation, control a sensing level to compensate for the change in the reference voltage.