• 한국연극학
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• 제52호
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• pp.229-270
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• 2014

Ostermeier's Hamlet has no particular contemporary reinterpretation. Alternately devoting to show retrospect in illusion and existence through revenging actions. However, Shakespeare's metaphorical and implicative language is dissipated and the style of the play is not an illusive space-time, but a tragic theatrical production that uses rough language to express the depth of the story. The Perfomance of Hamlet is a sensuous jumble up of a diverse range of mass media. The double roles that the actors carry out give an affect of isolation between the audience and the play itself showing both empathy and liberty. Ostermeier's Hamlet distinctively shows a post-modern performance through the prominent elements of dirt, the use of mixed genre, theatric emphasis, making an image and the fulfillment of acting. Nonetheless, Ostermeier's performance stays off the point on the breakup strategy of the post-modern drama without suspending the narrative of Shakespeare's Hamlet. Besides aiming to show a performance centered by the imagery of physical expression, his performance shows New Realism in the 1960's, showing everyday life. Ostermeier thinks, that theatre helps give contemporary people an accurate reality check in the constant unstable periods of time. Therefore, Hamlet shows post-modern physical expression and outspoken dramaturgy using the effects of mass media in New Realism without breaking up realistic narration. With being the aberration of the Castle Helsingor, the main character Hamlet, expresses lunacy and can be considered as metaphor for young adults whom are broken down and isolated from the economic system. He is a substitute for those who experience agony, anger, torment, etc. and other suppressed emotions in everyday life. With the method of direction in the portrayal of Hamlet show signs of succession in the abundant popularization of the classics by communicating with the audience by following the trend of modern mass media and audio-visual perception; emphasizing the point of the philosophical topic 'life and death,' 'life and theatre,' and 'illusion and reality.'

• Journal of Microbiology and Biotechnology
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• 제20권2호
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• pp.281-286
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• 2010

A Pseudomonas fluorescens strain was isolated and found to show antagonistic activity against phytopathogenic fungi and to possess a gene responsible for production of antibiotic 2,4-diacetylphloroglucinol. For the extension of biocontrol range, a gene for an Androetonus australis Hector insect toxin 1 (AaHIT1), one of the most known toxic insect-selective peptides, was designed and synthesized according to the preferred codon usage of Pseudomonas fluorescens, cloned, and transformed into the strain by pSUP106 vector, a broad-host-range plasmid. Bioassays indicated that the engineered strain was able to produce AaHIT1 with insecticidal activity, and at the same time retain the activity against plant pathogen. The experiments for nonplanted soil and rhizosphere colonization showed that, similar to the population of the wild-type strain, that of the engineered strain remained relatively constant in the first 10 days, and the subsequent 50 days, suggesting that AaHIT1 expression in the bacterial cell does not substantially impair its long-term colonization. It is first reported that a Pseudomonas fluorescens strain expressing an active scorpion neurotoxin has dual activity against phytopathogenic fungi and insects, making at attractive for agronomic applications.

• Design & Manufacturing
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• 제2권6호
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• pp.43-48
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• 2008

Magnesium alloys have given high attention to the industry of light-weigh as automobile and electronics with aluminium, titanium and composite alloys due to their high strength, low specific density and good damping characteristics. But the magnesium contained structures under high temperature have the problems related to creep deformation and rupture life, which is a reason of developing the new material against creep deformation to use them safely. The purpose of this study is to predict the creep deformation mechanism and rupture time of AZ31 magnesium alloy. For this, creep tests of AZ31 magnesium alloy were done under constant creep load and temperature with the equipment including automatic temperature controller with acquisition computer. The apparent activation energy Qc, the applied stress exponent n and rupture life have been determined over the temperature range below 0.5Tm and stress range of 109~187MPa, respectively, in order to investigate the creep behavior. AZ31 Magnesium alloy identify the activation energy for creep deformation and the stress dependence to creep rate at below 0.5Tm, and then investigate the mechanism for creep deformation and creep rupture life of AZ31 Magnesium alloy.

• 기본간호학회지
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• 제25권3호
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• pp.185-196
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• 2018

Purpose: The purpose of this study was to investigate the alopecia experience in adults and to explain the process of their experiences. Methods: Using a grounded theory methodology, 18 interviews were performed with fourteen men and four women, 34~57 years of age, suffering from alopecia. Data were analyzed using the constant comparative analysis method. Results: The core category emerged as "inescapable fetters". adults with alopecia engaged in three stages: embarrassment, seeking solution, and acceptance phase. Causal conditions were a vicious cycle of stress, biological factors and poor life style. Contextual conditions were recognition of irreversibleness, negative social awareness, and marriage. The central phenomenon of the adaptation process among the adults with alopecia was withdrawn life due to negative body image. Action/Interaction strategies included rely on medical treatment, efforts to take good care of hair, research for information treatment, efforts to cover up hair loss, and mind control. Intervening conditions were time cost, economic cost, support of surrounding people. Consequences was burden of unfinished lifetime homework. Conclusion: When caring for these adults, it is important to identify needs, allow patients to express what they want at that moment and support them in maintaining a daily life.

• 에너지공학
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• 제25권3호
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• pp.27-33
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• 2016

본 연구에서 적용한 열회복 방식은 적은 동력사용으로 최대의 냉각능력을 낼 수 있는 에너지 절약형이다. 항온항습기의 온습도를 보다 정밀 한 제어 기능을 갖도록 하기 위해 제어 알고리즘은 퍼지 PID 제어기를 설계하여 적용하였고, 외기보상장치(공냉식)를 갖추어 동절기에 $-20^{\circ}C$에서도 우수한 제습능력을 발휘하게 하였다. 고효율, 저소음형 시로코 팬을 채용하여 정숙운전이 되며 장비특성에 따라 상향식과 하향식에 맞도록 설계하였다. 실험한 결과 변환 효율은 95%이상, 정전복귀는 5sec 이내, 정지지연은 30sec 이내, 펌프다운은 10sec, 펌프지연은 5sec, 히팅지연은 5sec, 온도편차는 ${\pm}2^{\circ}C$(냉방편차: $2^{\circ}C$, 난방 편차: $2^{\circ}C$), 습도편차는 ${\pm}5%$(가습편차 3.0%, 제습편차 3.0%)을 갖게 하였다. 최근 유비쿼터스 기술이 중요시 되고 있기에 핸드폰을 통해 항온항습기를 원격 제어 할 수 있도록 하였고, MMI 소프트웨어와 자동 인터페이스를 지원하여 확장성이 뛰어나게 하였다. 또한 지능형 컨트롤러 고장진단에 의한 부품 및 장비의 수명이 연장 되도록 하였다.

• 동아시아식생활학회지
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• 제21권5호
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• pp.723-730
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• 2011

본 연구는 튀김식품의 종류에 따른 대두유의 가열산화변화를 여러 이화학적 품질지표들을 측정함으로써 장시간 가열처리에 따른 대두유의 산화안정성을 살펴보았다. 튀김유로 대두유를 사용하여 $180^{\circ}C$에서 72시간 동안 프렌치프라이, 치킨너겟, 도넛을 튀겼다. 튀김유의 가열산화 변화를 알아보기 위해 유리지방산가, 과산화물가, 총극성화합물 함량, 공액이중산가를 측정하였고, 유전항수, 굴절률, 요오드가, 발연점, 지방산 조성 중 불포화지방산과 포화지방산의 비(U/S)를 분석하였다. 튀김 시간에 비례하여 유리지방산가, 총극성화합물 함량, 공액이중산가, 유전항수, 굴절률은 증가하고, 요오드가, 발연점, U/S 비는 감소하였다. 모든 튀김유 시료에서 법적 규제치인 산가는 2.0% 이하와 총극성화합물 함량 25% 이하를 나타냈다. 그러나 과산화물가는 튀김 시간과 무관하게 증가와 감소를 반복하였다. 치킨너겟 튀김유가 프렌치프라이나 도넛 튀김유에 비해 가열산화에 더 안정한 것으로 나타나, 튀김식품의 종류가 튀김유 변질 속도에 영향을 주는 것을 알 수 있었다. 튀김유의 품질을 나타내는 여러 이화학적 지표 중 굴절률이나 유전항수는 간편법으로 산업 현장에서 유용하게 이용될 수 있을 것이다.

• 전기학회논문지
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• 제62권11호
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• pp.1550-1559
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• 2013

Light emitting diode(LED) lighting has been applied various industry fields because of its high efficiency, low power consumption, long life time, and environment friendly characteristics. Generally, LED lighting needs a driver to maintain constant current. Most popular driver is the switching converter. In the converter, there are several electrolytic capacitors. However the lifespan of the electrolytic capacitor is much shorter than LED. Therefore the lifespan of LED lighting with electrolytic capacitor is decreased. Also, LED lighting needs dimming control because of various needs and energy saving. This paper presents the dimmable single-stage PFC DCM flyback converter without electrolytic capacitor and parallel LC resonant filter for reducing 120[Hz] ripple on the output. The type 2 controller is used to maintain constant current and the analog dimming control is used. The proposed converter is verified through simulation and experimental works.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2018년도 전력전자학술대회
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• pp.237-239
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• 2018

This paper proposes an on-line estimation algorithm of internal resistance of Li-ion battery based on the recursive least squares method to prevent the overvoltage and undervoltage casing degradation of life cycle of battery. An equivalent circuit model with single time constant is adopted, and under assumptions that the terminal voltage, current and SOC are measured accurately, the discrete time based nonlinear equation of the model can be converted to the linear equation which can be applied to recursive least squares method. Since the coefficients of the discrete time linear equation can be expressed by the parameters of the equivalent circuit model, it is shown that an internal resistance (Ri) can be estimated in real time using the least square method.

• 한국정보전자통신기술학회논문지
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• 제11권6호
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• pp.645-650
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• 2018

소프트웨어 안정성은 운영 환경에서 시간의 흐름에 따른 오작동이 없이 운영 될 수있는 가능성이라고 할 수 있다. 소프트웨어의 고장 분석을 위한 유한 고장 NHPP에서, 고장 발생률은 일정하거나 단조롭게 증가하거나 단조 감소하는 추이를 나타낼 수 있다. 본 연구에서는 NHPP 모형에 근거하고 소프트웨어 고장시간 자료를 바탕으로 와이블 분포의 형상모수를 고려한 지수분포 Rayleigh 분포, 역-지수 분포를 수명분포로 하여 소프트웨어 개발 비용모형에 관한 속성을 비교 평가분석을 하였다. 또한 모수 추정은 최우 추정방법을 적용하고 데이터 추세검정은 박스-플롯방법을 이용하였다. 본 연구의 결과는 Rayleigh 모형이 역-지수 모형이나 Goel-Okumoto 모형에 비교해서 방출 시기는 Rayleigh 모형이 가장 빠르고 방출시점의 비용도 가장 경제적임을 알 수 있다. 이 연구의 결과를 이용하면 소프트웨어 개발자 및 운용자들은 최적방출시간과 경제적인 개발비용을 예측 하는데 활용 할 수 있으리라 판단된다.

• Journal of Ginseng Research
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• 제25권3호
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• pp.122-126
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• 2001

수삼을 물로 세척한 후 한 뿌리씩 연포장재 필름 주머니(ONY/LDPE/L-LDPE, 200$\times$300mm, 90$\mu\textrm{m}$)에 넣고 밀봉하여 $25^{\circ}C$, 1$0^{\circ}C$ 또는 4$^{\circ}C$에서 저장하면서 외관품질과 개체무게를 조사한 결과 수삼의 외관품질은 저장온도에 관계없이 주로 연화에 의하여 불량해졌으며 외관품질 변화 속도상수와 저장온도의 역수뿐만 아니라 개체무게 변화속도상수와 저장온도의 역수간에도 각각 5% 유의수준에서 양호한 직선관계를 나타내었다. 따라서 $25^{\circ}C$에서의 온도학대시험을 통하여 저온에서 저장중인 개별포장 수삼의 저장수명 및 개체무게 변화율을 단기간에 예측할 수 있을 것으로 판단된다.