Abstract: A cooperative diversity method and apparatus that can minimize interference and maximize an efficiency of a transmission channel between terminals of a cooperative diversity pair, the method including: determining a pair of terminals to be a cooperative diversity pair according to a spectrum sensing result of a cognitive radio (CR); selecting a subchannel through which data is exchanged between the pair of terminals; and transmitting the data between the pair of terminals through the selected subchannel.

Abstract: The present invention provides a method of preparing a cross-condensed compound of an amino-acid derivative and (aminoalkyl)trialkoxysilane using microwave, including: irradiating and heating an amino-acid derivative and (aminoalkyl)trialkoxysilane in a microwave reactor to obtain a reaction product (step 1); and refining the reaction product obtained in the step 1 by removing an unreacted solid material from the reaction product and then leaving the reaction product at room temperature under vacuum to remove excess (aminoalkyl)trialkoxysilane therefrom (step 2). According to the method, since a cross-condensation reaction is performed using microwave, unlike a conventional condensation reaction, economic efficiency is increased due to no catalyst, short reaction time and no solvent. Further, the yield and selectivity of products is increased, and the condensation reaction can be environment-friendly performed because a solvent which can badly influence the environment may not be used.

Abstract: Provided are a method and apparatus for combining and composing a plurality of images into one image. An image processing unit calculates importance levels of the plurality of input images, respectively, according to selection criteria, selects at least two important images from among the plurality of input images according to the calculated importance levels, determines Regions Of Interest (ROIs) of the important images, selects the ROIs in one canvas, arranges corresponding important images at positions corresponding to the selected ROIs, and composes the arranged important images into one image.

Abstract: The present invention relates to a system for canceling co-channel interference (CC) in a cellular orthogonal frequency division multiplexing (OFDM) system. The system canceling co-channel interference (CCI) in a cellular orthogonal frequency division multiplexing (OFDM) system comprises a mobile station (MS) receiver including a feedback generation unit for generating a feedback to a base station (BS) so as to control a transmission power of the transmitting frame of the BS, and a maximum likelihood estimation (MLE) CCI cancellation unit for canceling CCI signals arriving from neighbor cells; and a BS transmitter including a closed-loop power control unit for controlling the transmission power of the transmitting frame according to the feedback received from the MS such that received power of desired signal at the MS receiver is different from that of an interferer signal.

Abstract: Disclosed herein is an Ultra-WideBand (UWB) ranging method using a narrowband interference suppression waveform. A transmission signal is transmitted to a target object. The transmission signal, reflected from the target object, is received. A template signal is generated by combining the narrowband interference suppression waveform and a channel estimation signal together. A correlation output signal is generated by convoluting the template signal and the received signal. A distance is calculated using a time delay when the correlation output signal has the maximum value thereof. The narrowband interference suppression waveform is any one of two waveforms that are expressed by the following Equation: wr1(t)=g(t??1/2)+g(t+?1/2) wr2(t)=g(t??2/2)?g(t+?2/2) where g(t) is a basic UWB pulse waveform, ?1=(N+1/2)f1, ?2=(N)/f1, N is an integer, and fi is the center frequency of a narrowband interference signal.

Abstract: A resource management method in a Cognitive Radio communication system where at least two Base Stations of heterogeneous networks provide a connection service to Mobile Stations within their service areas is provided. In the method, at least one BS having candidate resources broadcasts its candidate resource information on the downlink of a system information channel. At least one BS lacking in resources searches the downlinks of system information channels from neighbor heterogeneous networks, selects an offer BS among the BSs having candidate resources, and rents resources from the selected offer BS by negotiations.

Abstract: The present invention relates to a visualization method of RNA pseudoknot structures for more efficiently and clearly visualizing all types of RNA pseudoknot structures including H-types in the form of a planar graph without edge-crossing so that the structures can be easily examined. The visualization method comprises reading the structure data in bracket view, identifying stem-loops and pseudoknots enclosed in bracket pairs from the input structure data, first computing the position and shape of a stem-loop contained in an identified pseudoknot to visualize the stem-loop, second computing the position and shape of the pseudoknot containing the calculated stem-loop to visualize the pseudoknot, third computing the position and shape of a stem-loop outside the computed pseudoknot, and inserting or connecting the visualized stem-loops into or to the pseudoknots to complete an RNA pseudoknot structure drawing.

Abstract: Disclosed herein is a method and apparatus for monitoring a memory address transmitted along an address path and converted into a row or column address of memory. The method includes: generating a path decision signal for deciding whether to connect the address path to a data terminal of the memory according to a memory command; and when the address path is connected to the data terminal of the memory in response to the path decision signal, transmitting a memory address, corresponding to the memory command, to the data terminal of the memory so that the memory address is monitored through the data terminal of the memory.

Abstract: Disclosed herein is a system and method for drawing a stream and road centerline for GIS-based linear map production, which performs a series of processes of automatically detecting accurate positions of points of a centerline using contour line data of a stream map or a road map having a digital map form, which is extracted from a digital map produced through remote sensing or construction of national geographic information systems, and connecting the detected points of the centerline so as to update stream and road centerline data generated by an inaccurate method and algorithm and to enable an accurate centerline to be used in various application fields.

Abstract: The present invention relates, in general, to a joint channel and frequency offset estimation apparatus and method based on a multi-band-orthogonal frequency division multiplexing system, and, more particularly, to a joint channel and frequency offset estimation apparatus and method based on an MB-OFDM system, which uses low-rank LMMSE channel estimation, in which a low-rank is applied to the MB-OFDM system, thus decreasing complexity, and adds a simple structure using the autocorrelation characteristics of an estimated channel, thus joining channel estimation to frequency offset estimation at low complexity. The apparatus includes a channel estimator for receiving a Fourier-transformed OFDM signal, and calculating results of channel estimation using a Linear Minimum Mean Square Error (LMMSE) channel estimation, which minimizes a Mean Square Error (MSE) between an actual channel value and an estimated channel value.

Abstract: A biopsy needle device for collecting a tissue sample by penetrating a living body includes a needle. The needle includes a tip portion having a cross-sectional area getting gradually smaller toward a front end thereof and a tissue container portion arranged behind the tip portion for holding the tissue sample therein. The tip portion includes a rear surface contiguous to the tissue container portion and a recess formed on the rear surface.

Abstract: An apparatus for manufacturing a micro lens array, wherein lenses having various standards are easily manufactured by forming a micro lens array by adjusting a vacuum condition in a vacuum chamber. The apparatus including: a vacuum chamber including a vacuum space therein; a vacuum unit for forming a vacuum inside the vacuum chamber; an upper frame disposed inside the vacuum chamber and to which a substrate is installed on a lower surface of the upper frame; an elevator for ascending and descending the upper frame; a lower frame disposed below the upper frame; a master plate disposed on the lower frame and includes a plurality of molding grooves on an upper surface of the master plate; and a heater installed to a side of the master plate to heat up the master plate.

Abstract: The present invention provides a quantum optical data storage protocol, whose storage time is lengthened by spin population decay time from several minutes to several hours.

Abstract: An adaptation data file providing apparatus is operated by at least one subsystem among subsystems configuring an air traffic control system that provides an air traffic control service. The apparatus includes: a data input unit for receiving adaptation data required to provide the air traffic control service; and a file generation unit for generating an adaptation file, which has a form to be transmittable to subsystems and is obtained by generating metadata for being used to check errors in the adaptation data and including the metadata and the adaptation data input through the data input unit therein.

Abstract: A network device and a network control device in a Wireless Body Area Network (WBAN), and a secure wake-up method and a wake-up authentication code (WAC) generation method of the network device and the network control device are provided. The network device includes a wake-up circuit to receive a wake-up radio signal from a network control device using a Radio-Frequency Identification (RFID) receiver, to compare a WAC contained in the received wake-up radio signal with a WAC stored in advance, and to determine whether to wake up a main circuit unit, the network control device being contained in the WBAN; and the main circuit unit to be woken up in response to an interrupt signal from the wake-up circuit.

Abstract: A fuel electrode material including a metal oxide having a perovskite type crystalline structure and represented by Formula 1: A1-xA?xB1-yB?yO3??Formula 1 wherein A and A? are different from each other and A and A? each independently include at least one element selected from the group consisting of strontium (Sr), yttrium (Y), samarium (Sm), lanthanum (La), and calcium (Ca); B includes at least one element selected from the group consisting of titanium (Ti), manganese (Mn), cobalt (Co), iron (Fe), and nickel (Ni); B? is different from B and includes at least one transition metal; x is about 0.001 to about 0.08; and y is about 0.001 to about 0.5.

Abstract: Disclosed are electrophoretic particles, a method of preparing the same, and an electrophoretic display using the same. The electrophoretic particle includes a coating layer, which includes a co-polymer of styrene and heterocyclic compound, and a pigment surrounded by the coating layer. The method includes polymerizing styrene on a surface of the electrophoretic particle and polymerizing styrene and a heterocyclic compound. The electrophoretic display includes the electrophoretic particles.

Abstract: A system for managing service mobility using an extensible Markup Language (XML) electronic signature. A mobility interface stops and stores the operation of a service being currently performed. Before the service is moved, a service serializer serializes service state information and converts it into an XML form which is attachable to an electronic signature. An XML security manager creates an XML electronic signature for the Manifest file of the Java ARchive (JAR) file of a service bundle, attaches the serialized service state information to the XML electronic signature, and records it. A service installer transmits the signed JAR file to an Open Service Gateway initiative (OSGi) framework that has requested that the service be moved.

Abstract: An operating staple is provided in which stability during an operation is enhanced by firmly suturing an operating portion and an intraluminal stapeler for operation having the operating staple. The operating staple closely sutures a first suturing tissue and a second suturing tissue contacting the first suturing tissue, and the operating staple includes: a center portion extending in close contact with a surface of the first suturingtissue; a pair of penetrating portions which is bent from both ends of the center portion and penetrates the first suturing tissue and the second suturing tissue; and a pair of leg portions which is bent from the respective penetrating portions, extends linearly, and closely bonds the first suturing tissue and the second suturing tissue to each other. Therefore, by utilizing the operating staple, the suturing tissues can be firmly sutured, thereby enhancing the stability during an operation.

Abstract: Disclosed herein is a ranging apparatus and method. The ranging apparatus includes a correlation unit for correlating OFDMA reception signals with inverse fast Fourier transformed ranging codes, and outputting correlation result values. A threshold determination unit determines a threshold value depending on characteristics of the reception signals. A comparison unit estimates a delay time by selecting a maximum value from among the correlation result values, and detects a ranging code by comparing the maximum value with the threshold value, and then outputs and feeds back the ranging code and the delay time when the maximum value is equal to or greater than the threshold value. A weight multiplication unit delays the ranging code by the delay time, multiplies a weight by the delayed ranging code, and outputs a resulting value. A calculation unit subtracts the resulting value from the reception signals, and provides adjusted reception signals.