Abstract: An electrical discharge machining (EDM) system and a method for electrical discharge machining using the above-mentioned machining system, the EDM system includes a bed, and an EDM module disposed on the bed. The EDM module includes an electrode, a providing part, an electrode guide and a retrieving part. The electrode machines a die. The providing part provides the electrode to be used for machining the die. The electrode guide is disposed adjacent to the die and guides a transfer of the electrode. The retrieving part retrieves the electrode used for machining the die.

Abstract: An anti-fuse circuit in which anti-fuse program data may be monitored outside of the anti-fuse circuit and a semiconductor device including the anti-fuse circuit are disclosed. The anti-fuse circuit includes an anti-fuse array, a data storage circuit, and a first selecting circuit. The anti-fuse array includes one or more anti-fuse blocks including a first anti-fuse block having a plurality of anti-fuse cells and the anti-fuse array is configured to store anti-fuse program data. The data storage circuit is configured to receive and store the anti-fuse program data from the anti-fuse array through one or more data buses. The first selecting circuit is configured to output anti-fuse program data of a selected anti-fuse block of the one or more anti-fuse blocks in response to a first selection signal.

Abstract: A fuel cell stack including membrane-electrode assemblies and separators formed between each of the membrane-electrode assemblies is disclosed. The membrane-electrode assemblies may each include an electrolyte membrane, an anode formed on a first surface of the electrolyte membrane, and a cathode formed on a second surface of the electrolyte membrane. Each of the separators may include an anode separator facing the anode and a cathode separator facing the cathode. Each of the separators may include at least two manifolds, a channel separated from the manifolds and facing either the anode or the cathode, and a connection channel fluidly connecting the manifold and the channel. The separator may also include a buffer protrusion system in the connection channel configured to disperse the flow of the fuel or the oxidant.

Abstract: A simple and efficient method for simulating dispersed bubble flow is provided. Instead of modeling the complex hydrodynamics of numerous small bubbles explicitly, the method approximates the average motion of these bubbles using a continuum multiphase solver. The subgrid interactions among bubbles are computed using a new stochastic solver. Using the proposed scheme, complex scenes with millions of bubbles can be simulated efficiently.

Abstract: There are provided a power converting apparatus and an operating method thereof, and a solar power generation system. The power converting apparatus for a solar power generation system includes: a power converting unit converting an input signal generated by a solar cell module into an output signal; and a control circuit unit controlling an operation of the power converting unit, wherein the power converting unit includes at least one transformer, and a current sensor and a switching circuit connected to a primary winding of the at least one transformer, and the control circuit unit calculates a voltage and a current of the input signal using a current of the primary winding of the at least one transformer sensed by the current sensor and performs a maximum power point tracking (MPPT) control so that the power converting unit is operated at a maximum power point.

Abstract: A display apparatus with at least two light guide plates, each including a light incident surface and a light exiting surface, the light guide plates being spaced apart from each other so as to form a gap therebetween. The display apparatus also has a light source disposed adjacent to at least one side portion of the light guide plates to emit light to the light incident surface, a display panel positioned to receive light from the light exiting surfaces to facilitate display of an image, and a diffusion member. The diffusion member covers the gap, so as to diffuse light directed toward the display panel.

Abstract: Disclosed are an electrode for a fuel cell, a method of preparing the fuel cell electrode, a membrane-electrode assembly including the fuel cell electrode, and a fuel cell system including the fuel cell electrode. The electrode includes an electrode substrate having a conductive substrate and a layer-by-layer assembled multi-layer disposed on a side of the conductive substrate and a bilayer including a polymer electrolyte or a conductive nanoparticle, and a catalyst layer disposed on the electrode substrate.

Abstract: Disclosed is an antibacterial composition comprising titanium oxide particles immobilized with an antibody having affinity and cognitive power to a microorganism of interest, and a method for sterilizing the microorganism by using the same. In particular, the present invention relates to a method for preparing functional titanium oxide particles capable of recognizing a microorganism or a virus of interest, and a method for selectively and efficiently sterilizing the same by using the functional titanium oxide particles, and not for randomly sterilizing microorganisms or viruses by using conventional titanium oxide particles having no recognition power to a microorganism or a virus of interest.

Abstract: Disclosed is a method for preparing a fluorescent substance, which is represented by the formula M1-zEuzSiaObNc (M=Sr1-x-yBaxCay, 0 x 0.5, 0 y 0.2, 0<z 0.3, 2 a 2.5, 1.5 b 2, and 2 c 2.5), and the present invention provides the method for preparing a nitride-based fluorescent substance comprising the following steps: a preliminary firing step further comprising a first firing step of creating a first firing product by mixing and firing a first precursor group including an M precursor and a first silicon precursor, and a second firing step of creating a second firing product by mixing and firing a second precursor group including an Eu precursor and a second silicon precursor; and a secondary firing step of mixing and firing the first firing product and the second firing product.

Abstract: The subject disclosure is directed towards ranking participants in an online platform according to expertise. A competition-based metric is applied to question and answer threads in order to model each thread as a set of comparisons between various groups of the participants. After aggregating comparison results for the question and answer treads, one or more relative expertise scores may be estimated for each participant. Each relative expertise score may correspond to a specific category of questions.

Abstract: A backlight assembly includes a light source generating light and a first optical member diffusing the light. The first optical member includes a first diffusion member provided on an exit surface of the first optical member, from which the light exits, to diffuse the light. The first diffusion member includes a plurality of edges each having a curved shape and extending between the exit surface and a vertex of the first diffusion member. Accordingly, the light exiting through the exit surface is effectively diffused by the edges of the first diffusion member.

Abstract: A semiconductor memory device includes a memory cell array configured to store data including a verification code; a sensing unit configured to sense the stored data including the verification code; and a verification unit configured to determine whether the sensing unit is able to sense the stored data based on a sensing condition, wherein the verification unit is configured to determine whether the sensing unit is able to sense the stored data based on the sensing condition and a value of the verification code sensed by the sensing unit.

Abstract: An apparatus for measuring geologic strike and dip of a formation. The apparatus includes a support plate, a first rotation plate disposed on the support plate and parallel to the support plate, the first rotation plate being rotatable parallel to the support plate, a second rotation plate hinge-coupled to the first rotation plate, the second rotation plate being rotatable about a hinge shaft, a protractor configured to read an angle between the first rotation plate and the second rotation plate; and a measuring unit including a compass disposed on the second rotation plate.

Abstract: The present invention relates to a method of determining a Modulation and Coding Scheme (MCS) feedback in a Wireless Local Area Network (WLAN) system, including an MCS FeedBack (MFB) responder receiving a first frame, including a request message requesting to send the MFB, from an MFB requester and the MFB responder sending the MFB, including a recommended MCS value, to the MFB requester. The recommended MCS value is derived with reference to at least one of unsolicit type information indicative of a type of the MFB, transmit type information indicative of a transmission type of data, coding type information indicative of a coding scheme applied to the data, a group ID indicative of a group of target stations (STAs) to which the data will be transmitted, and MFB bandwidth information indicative of a bandwidth of a channel.

Abstract: A fusion protein comprising factor VII (FVII) and transferrin according to the present invention has an improved specific activity of FVII compared to existing FVII fusion proteins comprising other fusion partners than transferrin, and thus can be effectively used in a therapy using FVII.

Abstract: Provided are a method and an apparatus for repairing a memory cell in a memory test system. A test device detects a fail address by testing a memory device according to a test command, and temporarily stores the fail address in a fail address memory (FAM). The fail address is transmitted to the memory device according to a fail address transmission mode, is temporarily stored in a temporary fail address storage of the memory device, and is then stored in an anti-fuse array, which is a non-volatile storage device. To secure the reliability of data, stored data can be read to verify the data and a verification result can be transmitted in series or in parallel to the test device.

Abstract: There is provided an apparatus and method for controlling a switch of a flyback converter for a solar generating system. The apparatus for controlling a switch of a flyback converter for a solar generating system includes: an MPPT controller generating a current command value for a maximum power point tracker of a solar cell module, based on input voltage, input current, and output voltage of the flyback converter; a current controller generating a current control signal for tracking the current command value; an output current command value generator generating the phase and magnitude command value of the output current, based on the phase of the output voltage and the current control signal; and a switch controller controlling the main switch of the flyback converter, based on the phase and magnitude command value of the output current, thereby simplifying a circuit while solving disadvantages of a discontinuous conduction mode and a boundary conduction mode.

Abstract: A display device for preemptively preventing an error caused by a fault in the scan circuit is disclosed. In one aspect, it includes: a display including a plurality of pixels connected to a plurality of scan lines and a plurality of data lines, a scan driver for sequentially applying a plurality of scan signals to the scan lines, and a signal controller for controlling the scan driver. In addition, the signal controller receives a final scan signal that is output for the last time from among the scan signals from the scan driver, detects output timing of the final scan signal, and determines whether the scan driver is normally driven. Accordingly, a display error caused by a fault of the scan circuit can be preemptively prevented.

Abstract: A method of link adaptation in a wireless local area network is provided. The method includes requesting, by a requester, modulation and coding scheme (MCS) feedback to a plurality of responders, by transmitting a MCS request (MRQ) indicator, and, receiving, by the requester, feedback frames from each of the plurality of responders, wherein each of the feedback frame comprises MCS feedback (MFB) information.

Abstract: There are provided a method and an apparatus for generating a current command value for tracking the maximum power point of a solar energy generating system. The apparatus includes: a voltage detector detecting a voltage input into the flyback power converter; a first calculator calculating an output power from the detected input voltage; a second calculator calculating a power variation based on the calculated output power and a voltage variation of the input voltage; and a current command value generator generating a current command value for tracking the maximum power point of the solar cell module from the calculated voltage variation and the calculated power variation. Accordingly, a current command value after calculating an output power may be generated with only a voltage detector, without a current detector, thereby reducing the costs of a solar energy generating system by decreasing the costs for a high-priced current detector, and simplifying circuit.