Abstract: The present invention provides a composite separator for a polymer electrolyte membrane fuel cell (PEMFC) and a method for manufacturing the same, in which a graphite foil prepared by compressing expanded graphite is stacked on a carbon fiber-reinforced composite prepreg or a mixed solution prepared by mixing graphite flake and powder with a resin solvent is applied to the cured composite prepreg such that a graphite layer is integrally molded on the outermost end of the separator.

Abstract: The present invention relates to a method for secreting and producing a target protein into cell culture broth. More particularly, the invention relates to a microorganism co-transformed with a recombinant expression vector containing E. coli outer membrane protein F (OmpF) and a recombinant expression vector containing a target protein to be secreted into cell culture broth, as well as a method of secreting and producing the target protein into cell culture broth by culturing the microorganism. According to the invention, the target protein can be secreted into cell culture broth in a pure form without fusion with other proteins so that the efficient isolation and purification of the target protein is possible.

Abstract: Disclosed herein is a method of generating anti-collusion fingerprint codes using a (na, n2a?2, na?1, n, 0, 1) GD-PBIBD. The fingerprint codes are generated using computer equipment that executes a program for executing a program for generating the fingerprint codes. The method includes step 1 of receiving an arbitrary prime number n and an arbitrary integer a larger than 3, step 2 of generating an n×n index matrix, step 3 of generating n n×n type_i matrixes, step 4 of generating an n2×n2 matrix using the n×n index matrix and the n×n type_i matrixes, step 5 of generating an na×n2a?2 matrix, and step 6 of extracting one arbitrary column from the na×n2a?2 matrix.

Abstract: An apparatus for providing an omnidirectional stereo image with a single camera includes a first reflector reflecting a first omnidirectional view viewed from a first viewpoint, a second reflector positioned to be coaxial with and separated from the first reflector to reflect a second omnidirectional view viewed from a second viewpoint, a third reflector positioned to be coaxial with the first and second reflectors to reflect the second omnidirectional view reflected by the second reflector, wherein the second and third reflectors have a folded structure satisfying a single viewpoint constraint, and an image sensor positioned to be coaxial with the first, second and third reflectors to capture an omnidirectional stereo image containing the first omnidirectional view reflected by the first reflector and the second omnidirectional view reflected by the third reflector, and output the captured omnidirectional stereo image, wherein shapes of the first, second, and third reflectors and a relative positional relati

Abstract: Disclosed herein is a gold nanoparticle (AuNP)-based peptide chip prepared by forming a monolayer of AuNPs onto a self-assembled monolayer constructed on a solid support, and then immobilizing a peptide on the AuNPs. The AuNPs can effectively amplify the mass signal of the peptide, thus making it possible to measure the mass change of the peptide in a simple and accurate manner. Also, when secondary ion mass spectrometric analysis (spectrum or imaging) is performed on the AuNP-based peptide chip, the activities of enzymes and related inhibitors can be effectively quantified. The disclosed invention enables various enzyme activities to be analyzed rapidly and accurately, and thus can provide an important method for disease diagnosis and new drug development through the elucidation of signaling and interaction mechanisms.

Abstract: A system is provided for authentication between a mobile device (MD) and a sink using a mobile communication network. If a sink authentication request for the sink is received from the MD, a base station (BS) sends a sink authentication response including sink authentication information for the sink, to the MD. The MD forwards the sink authentication request for the sink to the BS, and if a sink authentication response is received from the BS, authenticates the sink using the received sink authentication information. The sink performs authentication with the MD.

Abstract: The present invention relates to a method of preparing heavy metal nanoparticles using a heavy metal-binding protein. More specifically, relates to a method for preparing heavy metal structures, comprising the steps of: culturing a microorganism transformed with a gene encoding a heavy metal-binding protein, in a heavy metal ion-containing medium, to produce heavy metal structures in the microorganism; and collecting the produced heavy metal structures, as well as nanoparticles of heavy metal structures prepared according to said method. Unlike prior methods of preparing quantum dots by physically binding metal materials, en the quantum dots disclosed herein can be efficiently produced by expressing the heavy metal-binding protein in cells. In addition, the quantum dots are useful because they can solve an optical stability problem that is the shortcoming of organic fluorophores.

Abstract: Disclosed herein is a method of performing robust white balance. The method includes a first process of dividing an input image into blocks, a second process of selecting blocks having higher color errors, and calculating average RGB values of the selected blocks, a third process of selecting a specific top percentage of bright blocks, and calculating the average RGB values of these selected blocks, a fourth process of calculating average RGB values through color clustering, a fifth process of converting the average RGB values into CIE xyY color space, a sixth process of calculating the Euclidean distances between the x and y values of standard light sources in a color space and the x and y values of the average RGB values in CIE xyY color space, and selecting an average RGB value having the shortest Euclidean distance (Ed), and a seventh process of calculating white balance gain values using the selected average RGB value, and correcting the input image using the balance gain values.

Abstract: A power gating circuit includes a logic circuit, a switching element and a retention flip-flop. The logic circuit is coupled between a first power rail and a virtual power rail. The switching element selectively couples the virtual power rail to a second power rail in response to a mode control signal indicating an active mode or a standby mode. The retention flip-flop selectively performs a flip-flop operation or a data retention operation in response to a voltage of the virtual power rail.

Abstract: An optical input/output (I/O) bus system for connecting a plurality of external devices with a central processing unit (CPU) or memory in a specific system using an optical signal is provided.

Abstract: An express interface apparatus using an optical connection is provided. The apparatus connects between a central processing unit (CPU) in a computer system and an external device supporting optical signal transfer using a peripheral component interconnect express (PCIE) supporting high-speed signal processing.

Abstract: Disclosed herein is an apparatus and method for balancing the color of a flashed image using depth estimation. The apparatus includes a depth value measurement unit, a region identification unit, a color impression estimation unit, and a color balancing unit. The depth value measurement unit measures the depth values of the respective regions of an image to be captured using a camera preview image. The region identification unit identifies the regions of the preview image as a region influenced by camera flash or a region not influenced by camera flash using the depth values measured by the depth value measurement unit. The color impression estimation unit estimates the color impression of actual illumination in the region not influenced by camera flash. The color balancing unit corrects the color of the region influenced by camera flash.

Abstract: An apparatus and a method for allocating IDcells in a wireless communication system are provided, in which an initial IDcell allocation is performed by allocating entire sectors to elements of an N×M IDcell matrix, a sector pair with the highest proximity is selected for each IDcell in the initial allocation, an IDcell with a sector pair having the highest of the proximities of the selected sector pairs is determined as a target IDcell, one sector of the sector pair with the highest proximity for the target IDcell is selected as a target sector, a predetermined number of sectors are selected for each of the other IDcells except for the target IDcell, from among sectors to which the each of the other IDcells is allocated, and the IDcell of the target sector is swapped with the IDcell of a sector satisfying a first condition among the selected sectors.

Abstract: Disclosed herein is a multi-cantilever MEMS sensor functioning as a mechanical sensor having a plurality of cantilevers, replacing a conventional DSP based sound source localization algorithm and reducing production cost when the MEMES sensor applied to mass-produced robots, a manufacturing method thereof, a sound source localization apparatus using the multi-cantilever MEMS sensor and a sound source localization method using the sound source localization apparatus.

Abstract: An object of the present invention is to improve abrasion-resistance and spin performance of a golf ball having a polyurethane cover. The golf ball of the present invention is a golf ball having a core and a cover covering the core. The cover contains a layered silicate and a polyurethane resin having a secondary or a tertiary amine structure in a molecular chain thereof. In the present invention, the polyurethane resin used as a resin component constituting the cover has a secondary or tertiary amine structure in a molecular chain. Thus, it has a strong interaction with the layered silicate, and a reinforcing effect of the filler becomes even higher. As a result, abrasion-resistance and spin performance of the resultant cover are improved.

Abstract: A method for fabrication of microparticles using a photo-polymerizable colloidal dispersant is provided. The method includes (a) preparing liquid droplets in a continuous phase from photo-polymerizable resin containing colloidal particles dispersed therein, then, allowing the colloidal particles to move toward an interface of the liquid droplets; and (b) UV exposing the liquid droplets to enable photo-polymerization thereof, so as to produce microparticles having a structure formed of colloidal particles on a surface of the microparticles. In addition, in order to improve the surface structure and characteristics, the foregoing method further includes (c) selective chemical reaction of the colloidal particles formed on the surface of the microparticles or, otherwise, removal of the colloidal particles.

Abstract: Disclosed herein is a three-dimensional (3D) object recognition system and method. The 3D object recognition system includes a storage unit for storing an extended randomized forest in which a plurality of randomized trees is included and each of the randomized trees includes a plurality of leaf nodes, training means for extracting a plurality of keypoints from a training target object image, and calculating and storing an object recognition posterior probability distribution and training target object-based keypoint matching posterior probability distributions, and matching means for extracting a plurality of keypoints from a matching target object image, matching the extracted keypoints to a plurality of leaf nodes, recognizing an object using the object recognition posterior probability distributions, and matching the keypoints to keypoints of the recognized object using training target object-based keypoint matching posterior probability distributions stored at the matched leaf nodes.

Abstract: Disclosed is a titanate nanostructure, especially, represented by a chemical formula of AaBbTixOy wherein A and B are alkaline metals and 0?a?9, 0?b?9, 1?a+b?18, 1?x?10 and 2?y?20 with a, b, x and y each being an integer. A method for using the titanate nanostructure as a hydrogen storage medium is also provided.

Abstract: The present invention relates, in general, to a charge equalization apparatus with series-connected battery cells and, more particularly, to a charge equalization apparatus, in which series-connected battery cells (B1 to BN) are connected in parallel with the primary windings (Mi 1 to M1N) of transformers (T1 to TN), switches (S1 to SN) for controlling the flow of current of the primary windings are connected in series with the primary windings (M1 1 to M1N), and multiple secondary windings (M21 to M2N) corresponding to the primary windings are connected in parallel with each other.

Abstract: Provided is a visualization apparatus for a transparent PEMFC using a transparent window having conditions approximating a real PEMFC. More specifically, the present invention includes a heat-exchange passage heat exchanging a transparent plate of a visualization apparatus with a current collector plate in order to control heat. In order to achieve the above object, the present invention includes: current collector plates each provided at both surfaces of a membrane electrode assembly of a fuel cell and formed with a channel in which reaction gas and products flow; transparent plates provided at an outer surface of the current collector plates and provided with a heat-exchange passage having a fluid flowing therein to be heat-exchanged with the current collector plates; and fixing frames having a visualization window for observing the current collector plates and provided at the outer side of the transparent plates.