정지궤도 위성과 지구국간 광통신 링크의 전송속도 해석

한종석,정진호,김영권,Han, Jong-Seok,Jung, Jin-Ho,Kim, Yung-Kwon 한국전기전자학회 1997 전기전자학회논문지 Vol.1 No.1

정지궤도 위성과 지구국간 광통신을 대기상태와 앙각의 함수로써 해석할 수 있는 한모델(Han's model)을 제시하였다. 한모델에서는 대기상태를 맑은날, 구름낀 날, 안개, 헤이즈, 비, 눈의 여섯가지 전형적인 상태로 구분한다. 비트오류을 $10^{-7}$을 만족하는 데이터 전송속도를 한모델을 이용하여 상향링크와 하향링크에 대해 해석하였다. 상향링크시의 포인팅손실이 하향링크시의 대기에 의한 공간 가간섭 저하보다 크기 때문에 데이터 전송속도는 하향링크 보다 오히려 상향링크시에 제한됨을 알 수 있었다. Han's model, which is able to analyze optical communication between earth station and geo-satellite as a function of atmospheric conditions and elevation angles. is presented. In Han's model, atmospheric conditions are roughly classified into six basic types; clear sky, cloud, haze, fog, rain and snow. Data rate satisfying for the BER below $10^{-7}$ is analyzed by Han's model in case of up-link and down-link, respectively. Data rate is more limited by up-link than by down-link because the pointing loss caused by atmosphere on the up-link is greater than the spatial coherence degradation caused by atmosphere on the down-link.

A Comparative Study on Accentual Patterns between Middle Korean and the Current Jeju Korean

Seok-Han Kang 한국언어학회 2015 언어 Vol.40 No.1

Kang, Seok-Han. 2015. A Comparative Study on Accentual Patterns between Middle Korean and the current Jeju Korean. Korean Journal of Linguistics, 40-1, 1-18. The study reports that bi- and tri- syllabic nouns in the Jeju dialect of Korean keeps phonetic features of Middle Korean tone types, whereas no relation was found in the mono-syllabic nouns. The experimental result on 104 nouns which classified by following Middle Korean tone types implies the importance of syllable structure in the tonal change. In this study, the accentual patterns of Jeju Korean follows those of Kyungnam dialect of Korean;low tones change into high accentual patterns, high tones into low patterns, and falling tones into high patterns. But the change occurs in the phonetic level, not in the phonology, in which the H accent could be realized as higher F0 and longer duration. This means that the phonological tone patterns change into the phonetic accent in multi-syllable words. In this study, we can find some possible relationship between Jeju Korean and Middle Korean. It implies that Middle Korean was not a real tonal language. (Konkuk University)

Effects of Language, Age and English Listening Level on Voicing Perception of English Final Stops

Seok-Han Kang 한국언어학회 2006 언어 Vol.31 No.2

Kang, Seok-Han. 2006. Effects of Language, Age and English Listening Level on Voicing Perception of English Final Stops. Korean Journal of Linguistics, 31-2, 187-205. To understand the preceptual change pattern during L2 learning, this study examined the identification correctness of word-final stops and cue robustness for the unit intervals in light of background language, age, and English listening level. The 4 groups of Native Speakers of English, Korean College Students of High Listening Achievement, Korean College Students of Low Listening Achievement, and Korean Elementary Students took part in the experiments. Tokens of /dæp, dæb, dæt, dæd, dæk, dæg/ were extracted and modified into experimental signals composed of two digits (voiced-1, voiceless-0) by following the temporal intervals. In the first experiment of identification correctness of final stops, Native Speakers of English showed almost 100% correctness rate in both environments, while those of Korean showed 70% to 95% correctness rate depending on environments. In this test, neither age nor the listening level influenced significantly the voicing correctness to Korean subjects. In the second experiment of the cue robustness, the group of Korean Elementary students, unlike Korean College students, showed the similar perceptual pattern with that of native English speakers in the released environment. This result strongly suggested that the phonological system of the native language as well as the psycho-linguistic pattern of the universal language deeply influenced L2 perceptual system. (University of Incheon)

기업광고가 광고효과와 브랜드확장에 미치는 영향에 관한 연구

한광석(Han, Kwang-seok) 한국전통상학회 2005 韓國傳統商學硏究 Vol.19 No.2

The major purpose of this study is to investigate the advertising effect and brand expansion through an experiment according to the message condition of the society-contribution activity which is performed as a way of the social responsibility of a company. The dual variable analysis was executed with the experiment which was allocated in each the condition subjecting 120 university students in order to examine the significance of the answers of each the experimental group. The analysis result showed that there is no meaningful interaction between the presence of the expansion type of product and supply of supporting message in the attitude toward the advertisement supporting organization, attitude toward the advertisement, attitude toward the brand but in case of the purchasing intention, there is the meaningful interaction between the presence of the expansion type of product and supply of the supporting message. By the way, in case of the main effect, it was cleared that it is meaningful in the attitude toward the advertisement supporting organization and purchasing intention, it was turned up that it was meaningful according to the supporting message.

유량지속곡선을 이용한 한강수계 총량관리 단위유역 오염기여도 분석

이한필 ( Han Pil Rhee ),최재호 ( Jaeho Choi ),이성준 ( Yong Seok Kim ),김용석 ( Sung Jun Lee ),황하선 ( Ha-sun Hwang ) 한국물환경학회 2017 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2017 No.-

노인요양시설의 적정 침실 면적에 관한 연구

권순정,한정한,오은진,김석준,김노석,이특구 한국의료복지시설학회 2008 의료·복지 건축 Vol.14 No.3

The purpose of this study is to suggest optimum size of residents' bedrooms in nursing homes. Bedroom is an essential part of nursing homes because nursing home residents spend most of their times in bedrooms and occupy the largest part of facility area. Therefore it is necessary to set an adequate standard related to resident room area in nursing facilities, which have a great effect on planning longterm care facilities for the elderly. The body dimensions of elderly people and care givers have been collected from the previous study. Based on the body dimensions data, the behaviors of elderly as well as care givers have been analysed. The minimum areas-exclusive of toilets, closets, vestibules and so on - have been proposed from the results of the behavior analysis.

한강 하류의 남조류 및 환경요인의 연간 (2000 ${\sim}$ 2003) 변화에 대하여

서미연,김백호,배경석,한명수,Suh, Mi-Yeon,Kim, Baik-Ho,Bae, Kyung-Seok,Han, Myung-Soo 한국하천호수학회 2005 생태와 환경 Vol.38 No.2

한강 중하류의 남조류 및 환경요인의 연간변화 (2000 ${\sim}$ 2003)를 파악하기 위하여, 2000년 4월부터 2003년 10월까지 4년간 성수대교에서 성산대교까지 총 5개 지점을 선정하여, 수계의 기초환경요인 및 식물플랑크톤 현존량 변화를 조사하였다. 조사기간 동안, 남조류의 현존량은 점차적으로 감소하여 장기간 강우가 가장 많았던 2003년에는 거의 관찰되지 않았으며, 총 식물플랑크톤 현존량에 대한 남조류의 기여도는 약 10%범위내였다. 이러한 현상은 매년 강우집중기 동안 팔당댐으로부터 많은 방류수가 유입됨으로서 수온감소는 물론 광량감소, 영양염류 희석 등에 의한 남조류의 성장이 제한된 것으로판단되며, 동일시기에 다른 조류 (녹조, 규조 등)의 높은 성장으로 엽록소 a와 식물플랑크톤 현존량이 뚜렷하게 증가하였다. 따라서 한강 하류의 고온기 동안 남조류 성장은 잦은 강우와 방류에 의해 제한을 받지만 규조나 녹조와 같은 다른 조류들의 높은 성장으로 대치되는 천이현상을 보였으며, 기후영향을 크게 받는 전형적인 하천생태계의 특성을 나타냈다. For 4 years (2000 ${\sim}$ 2003), annual fluctuations of standing crops of cyanobacteria and physicochemical factors were examined at five sites from Bridge of Seungsoo to Bridge of Seungsan in the lower part of Han River. The cyanobacterial abundance (ND to 4,167 cells $mL^{-1}$) was strongly decreased during the heavy rains in every year. During the similar periods in 2003, cyanobacteria hardly observed, and comprised below of 10 percentage of total phytoplankton. In the period of little cyanobacteria, some green algae and diatom dominated the phytoplankton community, while the concentration of chlorophyll a has not largely change. These results indicate that heavy frequent precipitation strongly limited the growth of cyanobacteria, and lead an algal succession by the appearance of new algal groups.

하저를 통과하는 철도 쉴드 터널 설계시 고려사항에 대한 연구

주광수(Kwang-Sue Jue),심동현(Dong-Hyun Sim),김기창(Ki-Chang Kim),장선종(Sun-Jong Jang),최창림(Chang-Rim Choi),한석희(Seok-Hee Han) 한국철도학회 2012 한국철도학회 학술발표대회논문집 Vol.2012 No.5

최근 국가기간 철도망의 도심지 통과시 민원 및 환경, 기존 노선과의 접속 등의 이유로 구조물 근접, 하저, 퇴적층~경암의 복합지반 등 점점 더 가혹한 현장조건에서도 터널공법의 적용이 요구되어 지고 있으며, 이들 조건에서도 안전하게 시공이 가능한 쉴드(Shield) TBM에 대한 적용이 증가하고 있다. 본 고에서는 대곡~소사 복선전철 민간투자시설사업 구간 중 한강 하저를 횡단하는 철도 쉴드(Shield) TBM 터널 설계시 주요 고려사항에 대해 기술하고자 한다. 특히, 하저구간 통과시의 고수압 조건과 한강 하류지역의 지질학적 특성으로 인한 풍화대 심도가 불규칙한 복합지반, 다수의 단층파쇄대, 퇴적층 등의 불량한 지반조건을 통과하기 위한 쉴드 TBM의 검토사항과 터널안정성 확보를 위한 주요 설계 방안을 중점적으로 다루고자 한다. Recently, despite of the harsh conditions such as adjacent structures, underwater tunnel, and complex grounds, tunnel construction has been performed inevitably in underground metropolitan area because of civil complaint, environment and connection with existing railway. Thus, it has been increasingly demanded to be constructed by Shield TBM excavation method that can be a safe way under these adverse conditions. In this paper, we would like to introduce the major considerations about the shield tunnel design for passing through under the Han-River among the BTL Project of double-track electrification in the Deagok~Sosa section. Especially, Focus on key design strategies are discussed in Shield TBM and securing the tunnel stability for passing through under the river, such as high water pressure, complexity ground, many fault fractured zone, sedimentary layer

Tabes Dorsalis의 핵자기공명영상 및 전기생리학적 소견

권기한,김성민,권석범,이병철,조광호,주정희 대한신경과학회 1999 대한신경과학회지 Vol.17 No.3

Pastry 마가린 함량과 적층 수에 따른 puff pastry 제조 특성

한장호,김석영,윤여창,이시경 한국응용생명화학회 2003 Applied Biological Chemistry (Appl Biol Chem) Vol.46 No.4

Puff pastry의 제조 공정에서 pastry 마가린 함량과 적층 수의 변화가 제품의 수분 함량, 굽기 손실, 부피, vapor action 등에 미치는 영향을 조사하였다. Pastry 마가린 함량이 90%로 동일하고 적층 수가 27결일 경우 10.8±0.6%의 수분 함량을 나타냈으며, 1024결일 경우 16.7±0.3%로 적층 수가 증가할수록 제품의 수분함량은 증가 하는 경향을 보였다. 적층 수를 256결로 동일하게 하고, pastry 마가린 함량이 50%일 경우는 17.3±0.5%로 나타났으며, 130%에서는 7.5±0.2%로 pastry 마가린 함량이 증가할수록 제품의 수분 함량은 감소하였다. Pastry 마가린 함량을 70%로 동일하게 했을 때 굽기 손실의 변화는 27결일 경우 25.0±0.7%로 나타났으며, 1024결일경우엔 18.8±0.6^로 나타나 적층 수가 증가할수록 제품의 굽기 손실은 감소하는 경향을 보였다. 적층 수를 27결로 동일하게 한 경우에서는 pastry 마가린 함량이 90%일 때 25.4±0.4%의 굽기 손실이 발생하였으며, 110%에서 26.9±0.4%로 굽기 손실이 가장 높게 나타났다. Pastry 마가린 함량이 130%이고 적층수가 81결일 때에 21.87±0.79㎖/g로 최대의 부피를 나타내었다. 또한 vapor action의 크기는 9.15㎜가 pastry 마가린 함량 110%, 적층 수 256결에서 8.25±0.50개로 가장 많이 나타났다. This study was carried out to investigate the effect of pastry margarine content and number of layers on moisture content, baking loss. specific loaf volume and the vapor action in the manufacturing process of puff pastry. As the number of layers of the puff pastry increased the moisture content of the products slightly increased. And the moisture contents of the products decreased, as the pastry margarine contents of the puff pastry increased in the same number of layers. The baking loss of the products tended to decrease as the number of layers increased. On the other hand, as the pastry margarine contents of the puff pastry increased, the baking loss of the product increased. When the pastry margarine content in puff pastries became 130%, 81 layers provided the maximum specific loaf volumes 21.62±0.79 ㎖/g of puff pastries. When 110% of margarine and 256 layers were applied for preparation of puff pastry, the number of vapor action was 8.25±0.50 with the vapor action size of 9-15 ㎜.