• 한국작물학회지
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• 제53권4호
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• pp.369-375
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• 2008

본 연구는 박피시간에 따른 백삼의 색택과 일반성분 및 사포닌 함량의 변화에 미치는 영향을 조사하였다. 백삼 표피의 색택은 박피시간이 길어질수록 양호하였다. 일반성분인 조지방, 조단백질, 지방산 및 아미노산은 박피에 따라 약간 증가하였으나 탄수화물 및 유리당은 감소하였다. 조사포닌과 ginsenosides 함량은 박피에 따라 크게 감소하였다. 박피 인삼의 ginsenosides는 무박피에 비하여 약 20-30% 감소 하였다. 이러한 결과는 백삼의 박피가 색택을 좋게 하지만 인삼의 주요 유효성분인 사포닌 함량의 현저한 감소를 초래하였다.

• 해양환경안전학회지
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• 제12권3호
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• pp.193-199
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• 2006

선박에서 선내 소음이 문제로 인식되기 시작한 시기는 1970년대 초반 유럽에서 선박소음규제를 명문화하기 시작하였다. 이후 1982년 국제해사기구(IMO)에서 "International Code on Noise Levels on Board Ships"가 채택되어 오늘날에는 거의 모든 신조 선박에 대하여 해당하는 조항의 적용이 명문화되었다. 특히, 대형의 디젤기관과 다수의 보조기계가 동시에 운전되어지는 기관실 내부는 크고 복잡한 소음이 발생하는 환경으로 되어지고, 이러한 환경에서 작업하는 작업자는 소음성난청으로 되기 쉽다. 최근에는 각 나라별로 직업상의 난청으로부터 작업자를 보호할 목적으로 허용소음 폭로 시간을 법적으로 규제하고 있다. 우리나라에서는 근로기준법에서 정의하고 있지만 선박의 기관실과같이 특수한 조건에 대해서 국제해사기구의 규정에 따르고 있다. 본 논문에서는 국내 서남 연안을 정기적으로 운항하고 있는 화객선에 대한 소음의 정도를 조사하였다

• 미래기술융합논문지
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• 제2권1호
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• pp.41-47
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• 2023

본 연구는 헬스케어분야를 전공하는 만학도를 대상으로 일과 학업병행에 따른 삶과 여가에 대한 이야기를 들어보고자 하였다. 이를 위해 4명의 만학도를 대상으로 일과 학업 병행과정에서 느끼는 일상의 내용을 중심으로 현재 삶과 여가, 여가의 긍정과 부정적인 점, 향후 삶과 여가에 대한 내용을 인터뷰와 함께 기술할 수 있도록 하였다. 이후 인터뷰 내용과 함께 기술내용을 상호보강하고 자기기입의 형식으로 서술하였다. 만학도의 일과 학업의 병행에서 여가시간의 감소는 삶의 질을 감소시킬 수 밖 에 없다. 하지만 본인의 학업의 목적과 여가의 균형을 잃지 않기 위해 저마다 노력을 하고 있었다. 만학도의 일과 학업 병행은 미래의 삶과 여가를 위한 선택이고 과정이다. 그 과정에서의 애환은 삶의 가치와 희망이라 생각된다.

• Smart Structures and Systems
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• 제31권3호
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• pp.283-299
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• 2023

Structural stability of floating platforms has long since been a crucial issue in the field of marine engineering. Excessive motions would not only deteriorate the operating conditions but also seriously impact the safety, service life, and production efficiency. In recent decades, several control devices have been proposed to reduce unwanted motions, and an attractive one is the tuned heave plate (THP). However, the THP system may reduce or even lose its effectiveness when it is mistuned due to the shift of dominant wave frequency. In the present study, a novel adaptive tuned heave plate (ATHP) is proposed based on inerter by adjusting its inertance, which allows to overcome the limitation of the conventional THP and realize adaptations to the dominant wave frequencies in real time. Specifically, the analytical model of a representative semisubmersible platform (SSP) equipped with an ATHP is created, and the equations of motion are formulated accordingly. Two optimization strategies (i.e., J₁ and J₂ optimizations) are developed to determine the optimum design parameters of ATHP. The control effectiveness of the optimized ATHP is then examined in the frequency domain by comparing to those without control and controlled by the conventional THP. Moreover, parametric analyses are systematically performed to evaluate the influences of the pre-specified frequency ratio, damping ratio, heave plate sizes, peak periods and wave heights on the performance of ATHP. Furthermore, a Simulink model is also developed to examine the control performance of ATHP in the time domain. It is demonstrated that the proposed ATHP could adaptively adjust the optimum inertance-to-mass ratio by tracking the dominant wave frequencies in real time, and the proposed system shows better control performance than the conventional THP.

• ETRI Journal
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• 제36권5호
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• pp.772-782
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• 2014

Two-microphone binary mask speech enhancement (2mBMSE) has been of particular interest in recent literature and has shown promising results. Current 2mBMSE systems rely on spatial cues of speech and noise sources. Although these cues are helpful for directional noise sources, they lose their efficiency in diffuse noise fields. We propose a new system that is effective in both directional and diffuse noise conditions. The system exploits two features. The first determines whether a given time-frequency (T-F) unit of the input spectrum is dominated by a diffuse or directional source. A diffuse signal is certainly a noise signal, but a directional signal could correspond to a noise or speech source. The second feature discriminates between T-F units dominated by speech or directional noise signals. Speech enhancement is performed using a binary mask, calculated based on the proposed features. In both directional and diffuse noise fields, the proposed system segregates speech T-F units with hit rates above 85%. It outperforms previous solutions in terms of signal-to-noise ratio and perceptual evaluation of speech quality improvement, especially in diffuse noise conditions.

• 한국의류학회지
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• 제10권1호
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• pp.97-104
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• 1986

The change and development of costume are related to the cultural and socioeconomic factors. In the 18th century the mode of the women's costume in France was greatly influenced by the Rococo style. Elegance and exaggerated ornaments were the major characteristics of the woman's cos-tume in the Rococo period. The high hairdress and the widely hooped panier represented the typical Rococo fashion. From the second half of the 18th century onwards the aristocracy began to lose the battle with the bourgeoisie for political and economic power, and at the same time bourgeoisie fashion exerted an influence on court dress. The court fashion dominated the women's dress fashion in France up to the Revolution. Marie Antoinette, The Queen of Louis XVI, was one of the most influential fashion leaders in the lath century. The fashion, after attaining its highest point in 1770s, changed to a new direction in 1780s under Louis XVI. From that period onward the dimensions were smaller, hairdresses were not so high, and the trimming on the various garments was less liberal. In the mode, exaggeration was replaced by simplicity, and formality was replaced by functionalism.

• 한국재난관리표준학회지
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• 제2권1호
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• pp.47-55
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• 2009

실시간으로 기업영리활동을 추구하는 기업환경하에서 정보시스템의 사고발생은 조직과 고객 모두에게 막대한 손실을 야기시킨다. 그 손실에는 간접적인 브랜드 이미지의 손상, 고객이탈 및 직접적인 기업이익의 감소들이 해당된다. 따라서, IT 리스크와 기업활동의 중단으로 인한 손실을 최소화 하고, 사전에 이에 대비하는 것이 필요하다. 본 연구에서는 IT 리스크 평가방법과 리스크 예방차원에서 실행할 수 있는 리스크 과리방법을 제시하고자 한다, 제시된 방법을 국내 건설사에 적용한 사레를 제시함으로써 실제기업에 대한 적용 가능성을 확인하고자 한다.

• 펄프종이기술
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• 제47권4호
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• pp.127-135
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• 2015

Artists have been used animal glues for a long time as binding and sizing materials of paintings in many countries including Korea. Since animal glues as a binding material lose their own adhesive strength by aging, pigment particles or pigment layers are easily detached from painting surface. Restaurators prefer to use animal glues for consolidation of pigment particles or pigment layers because artists use animal glues as a binder for their painting works. It is widely known that animal glues have different characteristics such as viscosity, stability on water etc. But there are still a few requirements to consider their stabilities for the restoration of paintings. Therefore, this study was aimed to evaluate of stability and efficiency of animal glue applications. The efficiency of animal glue application was decreased with increasing the concentration of animal glue solution. This result means the simple tendency, but does not representative data for other animal glues made from same raw materials. In most cases, the surface and mechanical characteristics of animal glues are dependent on some factors, like viscosity and concentration of animal glue solution.

• 영어어문교육
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• 제12권1호
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• pp.205-220
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• 2006

This paper argues how Adrienne Kennedy embodies the features of a black woman's self-identity in Funnyhouse of a Negro. An educated young black woman, Sarah lives in a funnyhouse which is surrounded by mirrors. The reflections in the funnyhouse's mirrors are a metaphor of a black woman's life in America. Sarah's narrative is played out by four "selves," differing by sex and race. These selves imply her mixed cultural heritage. Two white women symbolize white European royalty, Jesus expresses christianity which is the basis of western culture and Lumumba represents Africa. Sarah's desire for whiteness is concentrated on skin color and hair. She longs for pallid skin and straight hair of the white race. Sarah wanted to be white, but her "tainted blood" by her black father made that impossible. Sarah is always obsessed by the fear of her father and the unhappy destiny of her mother. Ceaseless knocking, paralyzed images of lifelessness and surreal dreams effectively show her fear. Sarah's selves remain fragmented in the funnyhouse. Sarah exposures the black woman's anger and frustration through her death. Her death is a gesture of denial and refusal of the dominant society. At the same time, it was her last choice and struggle not to completely lose her own identity.

• 디지털융복합연구
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• 제4권2호
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• pp.109-126
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• 2006

The United States Intel company and these enterprises which Andy Grove President talks exception are without coming out at the Internet enterprise and the hereafter 5 year back side separately it means the necessity which will write the word which is a Internet enterprise will lose. When that time about, it puts upper volume from the Internet territory which is will open the competition where the relation enterprises are keen the winner will be undertaken the existing enterprises and the place where it receives the footlights where the e-business is many in this recent times which it talks, the reason the whole world becomes connection with the Internet, the frame of the social whole changes and the arrival result completeness sincerity pursuit of information comes to be possible simultaneously, it is changing as the product army which is complicatedly diversified from the product army where the craving of the customer becomes simplification. The consequently quick doctor decision and efficient manufacturing environment construction are demanded and Product Life cycle becomes shortening, the e-Business from the digital management environment which changes suddenly the necessity is plentifully raising its head with plan of competitive power security of the enterprise and management renovation. Successful of the e-business model and failure instances there is a depth from the research which it sees and after trying to investigate, it originated to the advancement of digital environment the strategies and to sleep against the successful model of the e-business for a new management renovation presentation it tries it does.