Abstract:
PURPOSE: A pipelined ALU(Arithmetic and Logical Unit) having a lookup table of a small size and an operation method thereof are provided to decrease the size of the lookup table while increasing a delay time by one cycle. CONSTITUTION: A dividend X and a divisor Y have a regulated fixed point. The lookup table(LUT2) stores internal parameters and calculates the 1/(Yh)¬2 by using the divisor. The first multiplier(MUL3) calculates the divisor A by multiplying the 1/(Yh)¬2 of the lookup table to the (Yh-Y1) obtained from the dividend X and the divisor Y. The second and the third multiplier(MUL4,MUL5) calculate and output the AX and the AY by respectively operating the divisor A to the dividend Y and the divisor Y. The fourth multiplier(MUL6) outputs a quotient Q by operating the AX to the bit-inverted 2-AY.
Abstract:
본 고안은 근전도 신호를 검출하는 근전도 신호 검출부, 신호 검출부의 출력 신호를 증폭하고 잡음을 제거하는 신호 전처리부, 신호 전처리부의 출력신호를 디지탈 신호로 변환하는 A/D변환기, A/D변환기의 출력신호를 수신받아 근전도 실효치를 구하여 통증 여부를 평가하고 자극신호를 출력하는 데이터 처리부, 근전도 및 자극강도를 표시하는 표시부, 데이터 처리부로부터 출력된 자극신호를 받아 자극을 내보내는 자극출력부를 구비하는 휴대용 근전도 바이오피드백 시스템에 있어서, 자극시간을 설정하는 시간모드 설정부, 자극의 강도를 설정하는 강도모드 설정부, 자극의 파형과 자극의 속도를 선택하는 펄스모드 설정부, 통증의 유무의 기준이 되는 근전도 실효치의 문턱치를 설정하는 기준 설정부를 더 포함하는 것을 특징으로 한다.
Abstract:
PURPOSE: A method of fabricating quasicrystalline particle reinforced metal matrix composite is provided to give superior mechanical properties to a metal matrix composite by diffusing quasicrystalline particle and then hot extruding it. CONSTITUTION: The method for fabricating quasicrystalline particle reinforced metal matrix having superior mechanical properties comprises the steps of forming quasicrystalline alloy into powder; uniformly mixing the quasicrystalline alloy powder with pure metal powder or alloy powder which can be compacted by extrusion in a mixer; forming the cold formed mixed powder into billets for extrusion by sealing the exhaust gas treated mixed powder after cold forming the mixed powder by putting the mixed powder into a cylindrical container and treating exhaust gas of the cold formed mixed powder at a temperature between an ordinary temperature and 350 deg.C; and extruding the billets by maintaining a container temperature of an extruder as a pre-heating temperature of the billets after pre-heating the billets for extrusion at a temperature enabling extrusion forming of the billets.
Abstract:
Provided is a method for reducing the front and rear part of fracture at corner of a lower jawbone by means of approaching the fractured part at corner of the lower jawbone in a mouth with a forceps. The method comprises the steps of: forming pressing points(18,19) on the outside of the front fractured part(13) and on the inside or the upside of the rear fractured part(15); pressing the couple of the pressing points(18,19) in the faced direction along a virtual line connected between the pressing points(18,19) and passed through the cross section of the fractured part(11). Further, the method is performed by using the forceps includes bent parts for being inserted into the pressing points(coupling holes)(18,19).
Abstract:
PURPOSE: A method for preparing an α,β-unsaturated ketone is provided, to obtain an α,β -unsaturated ketone selectively with generating little by-product under the mild condition by the simplified reaction. CONSTITUTION: The method comprises the steps of adding a transition metal catalyst and 2-aminopyridine derivative to a mixture of an aldehyde compound and an alkyne compound; and heating the mixture at a temperature of 50-150 deg.C for 1-36 hours. Preferably the aldehyde compound is selected from the group consisting of an aromatic aldehyde, an aliphatic aldehyde or a heteroatom-containing aldehyde; the alkyne compound is selected from the group consisting of a terminal alkyne and internal alkyne containing an aliphatic or aromatic group; and the transition metal catalyst is a rhodium monovalent catalyst or a rhodium trivalent catalyst; and the 2-aminopyridine derivative is 2-amino-3-picoline.
Abstract:
PURPOSE:An apparatus and a method for objectively evaluating the quality of video are provided to promptly and excellently evaluate the quality of video by using transformed wavelet-transform. CONSTITUTION:A wavelet transforming unit(330) wavelet-transforms each frame of a reference video and each frame of a processed video for generating a reference video wavelet coefficient and a processed video wavelet coefficient. A differential vector generating unit(340) generates a differential vector by sub-band blocks based on the wavelet transform coefficients. A differential vector combining unit(350) combines frame differential vectors by sub-band blocks for generating a single video differential vector. A weight calculating element(350) sets up weight of each element of the video differential vector and adds up all the elements according to the weight for outputting a single objective video quality score.
Abstract:
본 고안은 보다 미세하고 균일한 구상화 입자를 얻는 동시에 에너지 효율의 개선, 제조비 절감, 기계적 성질의 향상, 주조공정의 간편화 및 제조시간 단축의 이점을 실현할 수 있고, 단시간에 고품질의 반용융 성형용 빌렛을 연속하여 복수개 제조하기 위한 것으로, 이를 위하여, 내측에 공간부를 구비하고 상기 공간부에 전자기장을 인가하는 교반부와, 상기 공간부를 관통하도록 설치된 것으로, 상기 전자기장이 인가되는 공간부에 대응되는 소정 영역에 용융 금속이 주입되는 슬리브와, 상기 슬리브의 일단부에 삽입되는 것으로, 상기 슬리브 내에서 상기 용융 금속이 수용되는 영역의 일측 벽을 형성하고, 제조된 슬러리를 가압하는 제 1 플런저와, 상기 슬리브의 타단부에 삽입되는 것으로, 상기 슬리브 내에서 상기 용융 금속이 수용되는 영역의 타측 벽을 형성하고, 상기 제 1 플런저가 상기 슬러리를 가압할 때에 고정되어 소정 크기의 빌렛을 형성한 후에 후퇴되는 제 2 플런저를 포함하는 것을 특징으로 하는 반용융 성형용 빌렛의 제조장치를 제공한다.
Abstract:
본 고안은 보다 미세하고 균일한 구상화 입자를 얻는 동시에 에너지 효율의 개선, 제조비 절감, 기계적 성질의 향상, 주조공정의 간편화 및 제조시간 단축의 이점을 실현하기 위한 것으로, 내측에 공간부를 구비하고 상기 공간부에 전자기장을 인가하는 교반부와, 상기 공간부에 구비되고, 액상의 용융 금속이 주입되는 슬리브와, 상기 슬리브의 일단부에 삽입되어 제조된 슬러리를 가압하는 플런저와, 상기 슬리브의 타단에 연결되어 소정의 성형품을 형성하는 것으로, 이동 다이와 고정 다이에 의해 소정의 성형 공동이 구비되고, 상기 플런저의 가압에 의해 상기 슬러리가 상기 성형 공동으로 주입되는 성형 다이를 포함하는 것을 특징으로 하는 반응고 성형용 다이캐스팅 장치에 관한 것이다.
Abstract:
PURPOSE: An apparatus for detecting microwaves is provided to miniaturize a size of a microwave detection apparatus and remove a mechanical tuning process by using a micro strip antenna for controlling a receiving band according to particular patterns. CONSTITUTION: A microwave detection apparatus includes a micro strip antenna(150), a voltage control oscillator(300), and a frequency synthesizer(200). The micro strip antenna is used for receiving an RF signal. The voltage control oscillator is used for generating a selected frequency band signal. The frequency synthesizer is used for receiving the RF signal from the micro strip antenna and an output signal of the voltage control oscillator and outputting a mixed signal of the RF signal of the micro strip antenna and the output signal of the voltage control oscillator.
Abstract:
PURPOSE: A microorganism Lactobacillus plantarum having improved acid resistance and bile tolerance and isolated from kimchi and products containing the same are provided, thereby stably transferring the microorganism to the large intestine, so that environments in the large intestine can be improved. CONSTITUTION: A microorganism, Lactobacillus plantarum YM 0105 (KCCM-10315), having improved acid resistance and bile tolerance is isolated from kimchi by the steps of: collecting kimchi juice in a tube; inoculating the kimchi juice into Latobacilli selective LBS agar medium; culturing the medium for 48 hours and isolating 120 strains; subculturing 120 strains in MRS broth in twice; and selecting a strain showing excellent acid tolerance and bile tolerance.