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김영배,한원남,유태종,Kim, Young-Bae,Han, Won-Nam,Yoo, Tai-Jong 한국식품과학회 1985 한국식품과학회지 Vol.17 No.5
$28^{\circ}{\pm}2^{\circ}C$에서 24주 동안 저장한 쌀은 대조구및 곰팡이를 접종한 경우에는 수분항량이 각각 13.7%$\sim$14.1%로서 곰팡이의 생장은 보이지 않았다. 바구미가 존재할 경우에는 , n-hexanal 함량도 대조구및 곰팡이구에 비하여 현격한 차이를 나타내며 변화하였다. Polished rice was stored for 24 weeks at $28^{\c수분함량이 16.0% after infestation with rice weevil (Sitophilus oryzae), inoculation with a storage mold, or both treatment. The moisture contents of stored rice with and without rice weevil were 16.6%-17.3% and 13.70%-14.1% respeotively. Fungal numbers were $4.3{\times}10^{6}$/g to $7.2{\times}10^{6}$/g with insects while no fungal growth occurred without them. There were considerable differences between rice weevil infested- and non-infested rice in rice kernel hardness, 1000 kernel weight, maximum viscosity on amylogram, reducing sugar content, fat acidity, and n-hexanal content in head space gas.
회전체 진동 감소를 위한 마그네틱 댐퍼의 설계 및 응용
김영배,이형복,이봉기,Kim, Young-Bae,Yi, Hyeong-Bok,Lee, Bong-Ki 대한기계학회 2000 大韓機械學會論文集A Vol.24 No.2
In this study, active control magnetic actuator for reducing vibration of rotor system is performed. Identification, modeling, simulation, control system design, and evaluation of active magnetic damper system have been researched. Power amplifier modeling, connected magnetic actuator and augmented by system identification, is included to establish a magnetic damper simulation which provides close performance correspondence to the physical plant. A magnetic actuator, digital controller using DSP(Digital Signal Processor), and bipolar operational power supply/amplifiers are developed to show the effectiveness of reducing rotor vibration. Also the curve fitting procedure to obtain the transfer function of frequency dependent components is developed. Two kinds of test are executed as sliding and oil bearing. Results presented in this paper will provide a well-defined technical parameters in designing magnetic damper system for the proposed rotor.
金永培(Young-Bae Kim),柳泓濟(Hong-Je Ryu),金鍾洙(Jong-Soo Kim) 대한전기학회 2008 전기학회논문지 Vol.57 No.6
This paper presents the generation of the high voltage squarewave pulse using distributed RLC circuit. The demonstrated test was performed with the distributed RLC circuit which consists of the resistance, the inductance and the capacitance. Pspice simulation was also conducted about the experiment circuit. The result of the experiment was in good agreement with the result of the simulation. Theoretical analysis of the initial peak value at the squraewave pulse was derived from the results of the experiment and simulation. Additionally, the characteristics of the time delay was analyzed about the spherical gap switch and the surface discharge gap switch, respectively. It is concluded that the surface discharge gap switch is better than the spherical gap switch to reduce the time delay.
의료실의 비접지 배선방식 회로해석 및 적용에 관한 연구
김영배(Young-Bae Kim) 한국조명·전기설비학회 2005 한국조명·전기설비학회 학술대회논문집 Vol.2005 No.11월
Today, the sciences in medical and nursing fields are becoming progressively more dependent on electrical apparatus for the preservation of life of hospitalized patients. Therefore, it is required more safety medical power distribution system in order to protect patients and physicians more securely from unexpected leakage of current. Especially for the medically used rooms which use life sustaining equipment, power should be provided as supplying continuously without interrupting with lowest leakage current. This thesis proposed the reason why Isolation Power System is safety through the circuit analysis and application.
정신분열병 환자의 청각 사건관련전위에 대한 지형학적 연구
김영배 ( Young Bae Kim ),이용석 ( Yong Suk Lee ),김정미 ( Jung Mi Kim ),전양환 ( Yang Whan Jeon ) 대한임상검사과학회 2003 대한임상검사과학회지(KJCLS) Vol.35 No.2
The present study was designed to evaluate laterality of brain function and information processing abnormalities in patients with schizophrenia. In neurophysiological field, there is particular interest in the P300 component of event related potentials being recorded during discriminative task. The subjects were composed of patients(N=24) with schizophrenia by Diagnostic and Statistical Manual of Mental Disorders-IV(DSM-IV, 1994) and normal controls(N=24). The auditory event-related potentials P300 were employed by "oddball paradigm". P300 latency and amplitude were determined by conventional method at 5 electrodes(Fz, Cz, Pz, T7, T8) after grand-averaging across all subjects. P300 amplitude of patients were smaller than those of controls across all electrodes. P300 latencies were delayed in patients with schizophrenia. There are no asymmetry and laterality in the both groups. P300 ERP, known as a measure reflecting brain cognitive function, could be useful in neuroscience including schizophrenia.