• 한국진공학회:학술대회논문집
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• 한국진공학회 2012년도 제43회 하계 정기 학술대회 초록집
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• pp.272-272
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• 2012

Additional neutral particle analyzer has been installed to investigate the variation of fast ion tails with regard to the line of sight during 2012 KSTAR campaign. The system has the same photo-diode particle detector as previous system [1]. Both newly installed system and previous system modifield for 2012 campaign have two channels. One has a particle stopper transparent to hard X-ray, the other has no one. It will be used to separate the hard X-ray component from total hard X-ray and fast neutral counts. It is expected to measure fast ion tails more clearly through this extended system. A detailed system and calibration result will be presented in the conference.

• 대한한방부인과학회지
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• 제27권1호
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• pp.167-175
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• 2014

Purpose: This study was performed to find correlations between Edema Index and Pulse Energy in early postpartum period. Methods: Fiftynine postpartum women were participated in this study which was conducted with Inbody 720 (Biospace Co. Ltd) and 3D Blood Pressure Pulse Analyzer (3D-MAC). Edema Index (Extra Cellular Water/Total Body Water) calculated after body composition analysis and 3D-MAC result (Pulse Energy) were analysed within a week after delivery. Results: The results were as follows 1. Edema Indexes of the upper, lower limbs, trunk and whole body were associated with each other respectively. 2. Edema Indexes and Right Kwan pulse energy had significant positive correlation. 3. Right Kwan pulse energy showed positive correlations with Left Kwan, Right Chon, Right Cheok. Conclusions: Viscera associated with Postpartum Edema are Spleen, Lung, Liver and Vital Gate. The most important thing is thought to be Spleen.

• 한국진공학회지
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• 제8권1호
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• pp.9-12
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• 1999

Angle Resolved Ultraviolet Photoelectron Spectroscopy(ARUPS)용 전자 에너지분석기를 제작하고 그 성능을 조사하였다. 독립적인 각 분해와 에너지 분해를 위하여 3전극 전자 렌즈 2개를 연이어 붙인 동심 반구형으로 제작하였다. 이 분석기의 성능을 조사하기 위하여 Cu(100)의 전자 에너지 구조를 연구하였다. 이 분석기의 최고 에너지 분해능은 40 meV 이하이고 각 분해능은 $0.2^{\circ}$ 임을 확인할 수 있었다.

• 한국우주과학회:학술대회논문집(한국우주과학회보)
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• 한국우주과학회 1993년도 한국우주과학회보 제2권2호
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• pp.22-22
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• 1993

We developed the low energy electron detector (LEED) for KITSAT-B which was launched on September 26, 1998. The sensor head is mounted on the top of the satellite so that it can measure the precipitating electron flux along the Magnetic field line in the auroral zone at 820 km altitude. The detector system is composed of 4 parts : the electrostatic analyzer, the spira10on detector, the discriminator / Preamplifier, and the interface to the spacecraft. The analyzer limits the access to the spiraltron only to the electrons of certain energies which are determined by the electrostatic field across the two coaxial cylindrical analyzer plates. The energy spectrum of the detector in consideration is about 100 eV to 6.7 KeV, which is swept in 1.6 seconds and divided into 16 bins. It 81so is 1.6 second reset period after each swept, We will discuss the technical features of the system as well as the future observational schedule.

• 분석과학
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• 제23권6호
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• pp.518-523
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• 2010

본 논문에서는 반응속도론적 인광 분석기(Kinetic Phosphorescence Analyzer, KPA)를 이 용하여 환경 시료 중의 우라늄 동위원소 분석에 대한 연구를 기술하였다. 극초단파 산분해 기술을 이용하여 토양 및 유리 재질 시료로부터 우라늄 성분을 추출한 후, UTEVA 수지를 통해서 우라늄 동위원소를 순수하게 분리하였고 KPA로 우라늄 농도를 정량하였다. 우라늄 표준용액을 사용하여 KPA를 이용한 우라늄 측정법에 대한 선형성 및 재현성 실험을 수행하였다. 우라늄 표준용액, 지하수 및 인증 표준시료에 대해 KPA를 사용하여 우라늄 농도를 측정하여 KPA를 이용한 우라늄 분석법에 대한 신뢰도를 검증하였다.

• 대한임베디드공학회논문지
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• 제6권5호
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• pp.287-293
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• 2011

As chip multiprocessors have been widely adopted in embedded systems, achieving both high performance and low power consumptions of parallel applications becomes challenging. In order to meet these requirements, it is crucial for developers to analyze the performance and energy consumption of parallel applications. In this paper, we propose a tool for profiling and optimizing the performance and energy consumption of OpenMP applications (energy PROfiler and analyzer for OpenMP: ePRO-OMP). The main advantage of ePRO-OMP is that it can analyze both the performance and energy consumption of each parallel region of an OpenMP application, which can help developers find the bottleneck of parallel applications in detail.

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 2002년도 추계학술발표회요약집
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• pp.155.2-155
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• 2002

A visual environment for system analysis codes (hereinafter called "ViSA") has been developed to support code users in their input preparations, code executions, and output interpretations. ViSA provides a more convenient way for base input data generation and modification on a user-friendly basis. It also provides on-line graphical displays to give an in-depth understanding of transient thermal-hydraulic behaviors in nuclear power plants. This paper presents the main features of ViSA.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2012년도 춘계학술대회
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• pp.571-574
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• 2012

본 연구는 광파장분석기 설계 및 구현에 관한 것이다. 실험을 위해 입력광은 적외선, 자외선, 가시광선으로 광원을 사용하였다. 전류전압(I-V) 변환회로는 포토다이오드[1]로 구성 되어 있다. 광기전력을 이용하여 전압을 측정한다. 측정한 전압의 크기로 광원의 파장을 알아낼 수 있다.

• Applied Science and Convergence Technology
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• 제23권6호
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• pp.357-365
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• 2014

A non-invasive method for ion energy distribution measurement at a RF biased surface is proposed for monitoring the property of ion bombardments in capacitively coupled plasma sources. To obtain the ion energy distribution, the measured electrode voltage is analyzed based on the circuit model which is developed with the linearized sheath capacitance on the assumption that the RF driven sheath behaves like a simple diode for a bias power whose frequency is much lower than the ion plasma frequency. The method is verified by comparing the ion energy distribution function obtained from the proposed model with the experimental result taken from the ion energy analyzer in a dual cathode capacitively coupled plasma source driven by a 100 MHz source power and a 400 kHz bias power.

• 한국재료학회지
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• 제19권9호
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• pp.468-472
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• 2009

The silver nanofluids were synthesized by the pulsed wire evaporation (PWE) method in a liquid-gas mixture. The size and microstructure of nanoparticles in the deionized water were investigated by a particle size analyzer (PSA), transmission electron microscope (TEM), and scanning electron microscope (SEM). Also, the synthesized nanofluids were investigated in order to assess the stability of dispersion of nanofluid by the zetapotential analyzer and dispersion stability analyzer. The results showed that the spherical silver nanoparticle formed in the deionized water and mean particle size was about 50 nm. Also, when explosion times were in the range of 20$\sim$200 times, the absolute value of zeta potential was less than -27 mV and the dispersion stability characteristic of low concentration silver nanofluid was better than the high concentration silver nanofluid by turbiscan.