Abstract: An apparatus and method for receiving signals in a multiple-input, multiple-output (MIMO) wireless communication system is provided. A receiving end using as many as N Receive (Rx) antennas includes a first detector, as many as (N?2) nth detectors, and an Nth detector. A signal detection technique of the present invention has a low complexity and a throughput similar to that of a Maximum Likelihood (ML) scheme in a Multiple-Input Multiple-Output (MIMO) wireless communication system using a Spatial Multiplexing (SM) scheme.

Abstract: A method for selecting beams, a switched beam operation method during an initial synchronization process, and an initial synchronization method using it are provided for selecting beams to minimize the probability of occurrence of interferences between cells by considering a distance between beams within neighboring sectors during an initial synchronization process using switched beams, in an orthogonal frequency division multiplexing (OFDM) cellular system employing a smart antenna. The inventive method comprises the steps of dividing each cell into sectors, and counting the number of fixed beams per cell, and selecting a switched beam for minimizing probability of interference, from fixed beams presenting in a corresponding sector, based on distances between a selected beam and beams of all of adjacent cells and the number of cases to be selected in a subsequent time slot, according to the counted number of the fixed beams existing in each sector.

Abstract: Provided is a simply fabricable small zeroth-order resonant antenna with extended bandwidth and high efficiency. The zeroth-order resonant antenna includes a feeding patch, a transmission line, and a pair of ground patches. The feeding patch is disposed on a top surface of a substrate having a mono-layer structure, and is configured to receive a signal from the outside. The transmission line includes a unit cell disposed on the top surface of the substrate and is configured to transmit a signal delivered from the feeding patch. The pair of ground patches is longitudinally disposed on the top surface of the substrate in the same direction as a longitudinal direction of the transmission line around the transmission line. The unit cell includes an upper patch and an inductor unit. The upper patch is disposed on the top surface of the substrate and is configured to receive a signal.

Abstract: An apparatus and method for detecting program plagiarism through memory access log analysis is provided. A data extractor extracts an access log of an original program and an access log of a target program to be compared with the original program from a memory accessed by the programs. A common string detector enumerates values, which are obtained from the access logs extracted from the original program and the target program, into strings and detects a common string that commonly exists in the strings. A discontinuity calculator calculates a discontinuity value that indicates a distance between the strings by using an array of the detected common strings. A plagiarism determining unit determines that the target program is plagiarized if the calculated discontinuity value is less than a predetermined reference value.

Abstract: A micro-resonator sensor uses an evanescent wave of a total reflection mirror. The sensor includes an input waveguide for guiding inspection light incidented on one end section to the other section. A total reflection mirror is disposed at the other section of the input waveguide such that an incident angle made with the input waveguide is larger than a total reflection threshold angle at which the inspection light is totally reflected, and includes a receptor provided on the other side from the side on which the inspection light is incidented and combined with a measurement-subject material. An output waveguide is disposed at a certain output angle relative to the total reflection mirror for outputting a reflection light whose intensity changes according to the measurement-subject material due to an interaction between the evanescent wave generated by the inspection light incidented to the total reflection mirror and the measurement-subject material.

Abstract: A method and system using a processor for reasoning an optimized service of a ubiquitous system using context information and emotion awareness. The system using a processor for reasoning an optimized service of a ubiquitous system includes: a ubiquitous system unit to collect information about surroundings of a user; a context awareness unit to recognize a state of the user based on the information collected in the ubiquitous system unit, and to generate context information; an emotion awareness unit to recognize an emotion of the user based on the information collected in the ubiquitous system unit, and to generate emotion information; a combination unit to combine the context information and the emotion information; and a service selection unit to reason and select a service for the user based on the combination result of the combination unit.

Abstract: Disclosed herein is a method and apparatus for manufacturing a panel for a vehicle. When a steel sheet is machined to form a panel for a vehicle, a blanking-texturing machine conducts a blanking process for cutting the steel sheet and a texturing process for forming depressions in the steel sheet at the same time. Therefore, the present invention reduces the number of manufacturing processes, thus enhancing the productivity, and reducing the production cost and provides a steel sheet with uniform depressions across the surface of the steel sheet, thereby reducing the coefficient of friction during the pressing process consistently.

Abstract: A mobile terminal and a handover method for the mobile terminal are disclosed. A mobile terminal according to an embodiment of the invention may include a control unit configured to control the mobile terminal to perform a handover to a base station based on at least one of an on-off traffic characteristic of downlink data received from the base station and an on-off traffic characteristic of uplink data transmitted to the base station. When certain aspects of the invention are applied, the amount of data loss during a handover can be minimized.

Abstract: Disclosed are an apparatus and a method for detecting signals in a spatial multiplexing system. An embodiment of the invention provides a signal detection apparatus for a single receiver unit equipped with a plurality of antennas in a system having at least one transmitter unit configured to transmit data streams by spatial multiplexing, where the signal detection apparatus includes: a partial linear coefficient generator unit configured to generate a linear weighting matrix by using a preset algorithm on a channel matrix formed between the transmitter unit and the single receiver unit; a partial symbol remover unit configured to generate a first symbol vector by removing all transmittable symbols for each transmitting antenna from all received data streams; and a partial symbol detector unit configured to generate a transmission symbol candidate vector by using the linear weighting matrix and the first symbol vector.

Abstract: Novel brazzein variants having higher sweetness and the use thereof are provided. The brazzein variants or multi-variants have higher sweetness than a wild-type brazzein protein. Also, a method of preparing the brazzein variants and a food composition for enhancing a sugar content including the same are provided. The brazzein variants or multi-variants have higher sweetness at least twice that of a conventional brazzein protein, and show equivalent properties such as thermal and pH stabilities and high water solubility compared to the conventional brazzein protein. Therefore, a smaller amount of brazzein variants can be used together with a greater amount of other sweeteners such as sucrose, and can be replaced with the other sweeteners. So, the brazzein variants can be widely used as an additive in manufacture of food products.

Abstract: Provided are an apparatus and method for aligning color channels on the basis of depth information on an image taken by an imaging device equipped with a multiple color-filter aperture (MCA). An image divider generates a binary image including edge information on an original image, and generates a label map including a plurality of regions of interest (ROIs) respectively corresponding to a plurality of objects included in the original image. A shifting vector estimator estimates color shifting vectors (CSVs) indicating shift directions and distances of color channels of the original image according to the respective ROIs. A channel matching unit obtains a plurality of matched images corresponding to the respective ROIs included in the label map by shifting the color channels according to the respective CSVs, and generates a multi-focus image by combining the matched images.

Abstract: An apparatus and method for image interpolation based on low pass filtering are provided. The apparatus includes an edge direction detector detecting an edge direction for a pixel nearest to a to-be-interpolated pixel among pixels and determining the edge direction of the to-be-interpolated pixel as the detected edge direction, a pixel value calculator calculating pixel values of interpolation points located in a lattice filtering window having a predetermined size by using pixel values of pixels located adjacent to the interpolation points, and a filtering unit performing low pass filtering on the to-be-located pixel according to a low pass filter corresponding to the determined edge direction of the to-be-interpolated pixel, the low pass filter being one of low pass filters corresponding to predetermined vertical, horizontal, left diagonal and right diagonal directions respectively.

Abstract: Provided are an apparatus and method for generating a fully focused image. A depth map generation unit generates a depth map of an input image obtained by a multiple color filter aperture (MCA) camera. A channel shifting & alignment unit extractes subimages which include objects with same focal distance based on the depth map, and performing color channel alignment and removing out-of-focus blurs for each subimages obtained from the depth map. An image fusing unit fuses the subimages to generate a fully focused image.

Abstract: Provided are an apparatus and method for enhancing image quality of an input image captured by an image capturing device having an aperture with a plurality of openings employing different color filters. The image quality enhancing apparatus includes an ROI (region of interest) classifying unit classifying ROIs according to distances from the image capturing device of a captured input image by using a cluster-based image segmentation algorithm, a color channel registering unit determining motion vectors of color channels corresponding to the respective ROIs by analyzing a high frequency component of image data included in the ROIs, and moving the color channels based on the determined motion vectors to obtain a registered image of the respective ROIs, and an image fusing unit fusing the registered images of the respective ROIs to obtain a fused image.

Abstract: Disclosed are a novel 8-hydroxyquinoline acetamide compound, an 8-hydroxyquinoline thioamide and use thereof. More specifically, disclosed are a novel 8-hydroxyquinoline thioamide compound suitable for use as a selective chemodosimeter that shows considerably high detection sensitivity to mercury ions, an 8-hydroxyquinoline acetamide compound as an intermediate thereof, preparation thereof, and a chemodosimeter for mercury ion-selective detection, the chemodosimeter comprising the 8-hydroxyquinoline thioamide compound. The compounds as disclosed herein exhibit considerably effective fluorescence specificity of an off-on type, detect a micromole of mercury ions from chemical and biological aqueous systems, and allow 100% desulfurization within 5 minutes, thus being considerably useful in the chemical industry.

Abstract: A mobile terminal and a handover method for the mobile terminal are disclosed. A mobile terminal according to an embodiment of the invention may include: a communication unit configured to receive from a base station multiple frames, each belonging to one of two or more frame in a set order of priority; and a control unit configured to control the mobile terminal to perform a handover to a base station based on the occurrence pattern of frame types of the multiple frames.

Abstract: A method and an apparatus for detecting a signal in a multi-antenna system using a spatial multiplexing are provided. The apparatus includes at least one antenna for receiving a signal, a channel estimator for estimating a channel using the received signal, a detector for calculating multiplication values commonly used to determine a Euclidean distance using the receive signal and channel information and for detecting a transmitted signal by calculating Euclidean distances of one or more candidate symbols using the receive signal and the determined multiplication values and a decoder for demodulating and decoding the detected signal. Hence, the computational complexity of the signal detection can be mitigated.

Abstract: The present invention provides a method for manufacturing a metal/composite hybrid wheel for a vehicle by molding an inner rim of a composite material by compression and, at the same time, bonding an outer rim of a metal material to the inner rim to induce compressive residual stress in the bonding area by a difference in thermal expansion coefficient between the outer rim and the inner rim, thereby increasing the adhesive strength of the bonding area and the durability of the wheel. The present invention further provides a metal/composite hybrid wheel for a vehicle manufactured by the method.

Abstract: A non-coherent detection apparatus and method for an IEEE 802.15.

Abstract: Disclosed are a construct for expressing a rotavirus antigen complex loaded with a heterologous virus epitope, a vaccine composition containing the rotavirus antigen complex, a virus-like particle of rotavirus containing the rotavirus antigen complex, and a vaccine composition containing the virus-like particle of rotavirus. According to the present disclosure, an antigen complex containing a rotavirus antigen as well as a heterologous virus epitope and a virus-like particle of rotavirus containing the antigen complex can be produced in large scale at low cost. Thus, the present disclosure may be applied for research and development of novel complex vaccines for rotavirus and heterologous virus.