潛堤의 反射 및 透過率에 關한 硏究

梁崙模,李文贊,金鍾石 釜山大學校 都市問題硏究所 1987 都市硏究報 Vol.1 No.-

The reflection and transmission effects by the change of space and size of the rectangular submerged breakwater installed in the constant depth of sea-bottom water were theoretically estimated and investigated by the potential connecting method and two dimentional hydraulic model test. In case of impermeable submerged breakwater, as it were, the effect of width, space and height of submerged breakwater were investigated sperately by the theoretical analyses and experiments on single and double submerged breakwaters. And, in the event of permeable submerged breakwater, space and height of submerged breakwater were investigated by experiments. According to this study, the following conclusions were obtained. 1) The theoretical and experimental values were very close in their numerical values in impermeable submerged breakwater. 2) The influences width and space of submerged breakwater on reflection and transmission effects were not constant but the repetition of increase and decrease and its influences became more greater as the height of submerged breakwater was more higher. On the contrary, there were little influences of width and height of breakwater on reflection and transmission effects in permeable submerged breakwater. 3) Double submerged breakwaters was more effective in wave damping effects than those of single submerged breakwater in impermeable submerged breakwater. 4) Wave damping effects of impermeable submerged breakwater were more greater than those of permeable submerged breakwater.

노즐형상비에 따른 디젤분무의 특성

양윤석,이창수,허종철 濟州大學校 産業技術硏究所 2001 산업기술연구소논문집 Vol.12 No.1

In this study. diesel spray characteristics has been conducted to investigate the effect on nozzle aspect ratio(L/D). A single hole nozzle which is 0.45mm in diameter and 2.78. 3.89. 5 in the nozzle aspect ratio is used. Injection pressure is 14MPa and ambient pressure are 0.1MPa and 3MPa. By nozzle aspect ratio. the disintegration process of a diesel spray was observed. The double flash method has been employed to visualize the developing process of the diesel spray.

하계 실내 및 실외환경의 공기 중 휘발성 유기화합물 농도 및 개인노출

양원호,손부순,박종안,장봉기,박완모,김윤신,어수미,윤중섭,류인철 한국환경과학회 2003 한국환경과학회지 Vol.12 No.9

Volatile organic compounds (VOCs) are present in essentially all natural and synthetic materials from petrol to flowers. In this study, indoor and outdoor VOCs concentrations of houses, offices and internet-cafes were measured and compared simultaneously with personal exposures of each 50 participants in Asan and Seoul, respectively. Also, factors that influence personal VOCs exposure were statistically analyzed using questionnaires in relation to house characteristics, time activities, and health effects. All VOCs concentrations were measured by OVM passive samplers (3M) and analyzed with GC/MS. Target pollutants among VOCs were Toluene, o-Xylene, m/p-Xylene, Ethylbenzene, MIBK, n-Octane, Styrene, Trichloroethylene, and 1,2-Dichlorobenzene. Indoor and outdoor VOCs concentrations measured in Seoul were significantly higher than those in Asan except Ethylbenzene. Residential indoor/outdoor (I/O) ratios for all target compounds ranged from 0.94 to 1.51 and I/O ratios of Asan were a little higher than those of Seoul. Relationship between personal VOCs exposure, and indoor and outdoor VOCs concentrations suggested that time-activity pattern could affect the high exposure to air pollutant. Factors that influence indoor VOCs level and personal exposure with regard to house characteristics in houses were building age, inside smoking and house type. In addition insecticide and cosmetics interestingly affected the VOCs personal exposure. Higher exposure to VOCs might be caused to be exciting increase and memory reduction, considering the relationship between measured VOCs concentrations and questionnaire (p<0.05).

기계학습에 필요한 풍부한 말뭉치의 구축 방안

양단희,이종연 三陟大學校 2000 論文集 Vol.33 No.1

When we use a machine learning mechanism for natural language processing, unsupervised methods are confronted with data sparseness and supervised methods have difficulties in constructing sufficient training data. These problems come from the fact that we do not have sufficient training resources necessary to training. After discussing such problems specifically, we suggest a method to construct extensive training resources, not in an academic view of natural language processing, but in a practical one.

본태성 고혈압에서 염산에포니디핀 (NZ-105, 핀테20정�)의 유효성 및 안전성 : 제3상 다기관 임상시험 The phaseⅢ multicenter open trial

배종화,손일석,강흥선,조정휘,강재헌,김성원,이선영,양윤준,김영식,선우성 대한간질학회 2003 대한간질학회지 Vol.9 No.1

내용기반 분류에 의한 비디오 검색 시스템 설계

배종식,남윤성,양동일,최형진 강원대학교 정보통신연구소 2006 정보통신논문지 Vol.10 No.-

We suggest how to search news data by dividing structurely, by classifying meaningly, and by itemizing them by contents. The structural division divides the scene using correlative information between frames such as the distribution of the space brightness and the irregularity of brightness, and time relation etc. The meaning classification means to classify the detailed contents of news video as articles comparing special information extracted frame key frame with previous knowledge information. This study classifies the articles as the anchor's scene and the non-anchor's scene using the character that the progress of news is repeated centering around the anchor frames by periods. We get the non-anchor's scene to search the news data itemizing speech scene, interview scene and general scene, and classifying as articles. Also, we use the function of searching for summary by news icons and search the caption by processing the integration of caption, and design them to be able to search the news video quickly classifying news video as contents and indexing them.

뇌졸중 후 중추성 통증 환자에 대한 동서협진이 진통과 재활에 미치는 영향

이현종,김수영,이상훈,서동민,이두익,김건식,이재동,이윤호,양형인,박재경,최도영 WHO COLLABORATING CENTRE FOR TRADITIONAL MEDICINE 2003 東西醫學硏究所 論文集 Vol.2003 No.-

Purpose : In order to study the effectiveness of East-West pain treatment on central poststroke pain(CPSP), we evaluated its effect on alleviation of pain and rehabilitation of CPSP Patients who were treated with electroacupuncture and west pain treatment for four weeks. Methods : Twenty four patients diagnosed by their pain characteristics of central pain from stroke were treated with sympathetic nerve block, gabapentin, amitriptyline, and electroacupuncture for four weeks. Pain intensity through the visual analogue scale(VAS), and improvements of mobility and rehabilitation through the modified Barthel index(MBI) and Rankin scale(RS), respectively, before and after pain treatment were also assessed. Results : VAS pain scores were significantly improved from 7.7±1.7 to 4.4±2.0 with pain treatment(p<0.05). In accordance with improvement of pain scores, RS and MBI scores were also improved from 2.88±0.95 to 2.13± 1.01 and from 83.0± 16.9 to 94.7±9.5(p<0.05), respectively, with pain treatment(p<0.05). Conclusions : It was suggested that the active pain treatment was contributed to the rehabilitation of CPSP patients, resulting in improvement of quality of life of CPSP patients. Futhermore, East pain treatment in combination with West pain treatment may be useful modality to alleviate CPSP.

폐산과 폐알칼리를 이용한 폐지류의 전처리

진양오,윤철종,우성훈,최성우,김익성,박승조 동아대학교 환경문제연구소 1999 硏究報告 Vol.22 No.1

The objective of this study were to treat waste paper with waste acid and alkali so to enhance maturity of the wastes. The sample was office paper and news paper which ratio was 1:1 and the reagents for pre-treatment were sulfuric acid and sodium hydroxide for waste acid and alkali. The maturity indices were taken volatile solid. cation exchange capacity, and gas production variation. The pre-treatment method was to dip the sample in the reagent according to time, concentration, and dosage. The methods of treatment were to dip the wastes in leachate and to landfill in soil. The result of this study were as follow. When waste paper was treated by acid and alkali, the proper treatment condition was 24hours and 0.1 normality of acid and alkali. The pre-treated samples with acid and alkali such as RSN and RSH were more effective in maturity than non-treated sample such as RS. The post-treated sample such as RSL, RSNL, and RSHL was more effective than nonpost-treated sample such as RS, RSN, and RSH.

주정중독 환자에서 Marchiafava-Bignami Disease로 판명된 환자 2례

이종일,조연규,양병환,김주한 大韓神經精神醫學會 1993 신경정신의학 Vol.32 No.6

Among the many neuropsychiatric complications in chronic alcoholics, the Marchiafava-Bignami disease is a rare clinical condition, which is pathologically characterized by selective degeneration of the corpus callosum as well as the anterior and posterior commissural fibers. It can share many of the common symptoms of chronic alcoholism, but frontal lobe signs(motor and mental slowness, apathy, and frontal releasing signs) are the most consistent findings. We report two cases of Marchiafava-Bignami disease that showed abnormal signal density in the corpus callosum on MRI or CT, and that presented with initial symptoms of psychiatric problems such as personality and behavioral changes.

임산유지수종의 이용에 관한 연구 (Ⅴ) : 장기저장에 따른 때죽나무 종실의 성분 변화 Variation of Components in Sapium japonica Seed Following Long Terms Storge

조종수,강병국,양재경,박종열,김윤근 진주산업대학교 농업기술연구소 2000 農業技術硏究所報 Vol.13 No.-

This paper was carried out to analyze the variation of composition of seed oil with storage periods. Difference of content of crude fat in fresh-cut seed and one year storage seed is not detected but in pentadecanoic acid, acid value, iodine value and peroxide value in one year storage seed have lower than those of the fresh-cut seed. Linoleic acid and oleic acid were high among of total fatty acid in fresh-cut seed but moiety of linolenic acid and icosanoic acid was low otherwise that of palmitic acid and oleic acid is increased in one year storge. In neutral lipid, capric and mytistic acid were high in fresh-cut, oleic acid, palmitic acid and linoleic acid were increased after one year storge. In glycolipid, the lauric acid and linoleic acid were high in fresh-cut seed, the palmitic acid was increased, otherwise, linolenic acid was decreased after one year storge. In phospholipid, palmitic acid and unknown part were high in fresh-cut seed, palmitic acid, oleic acid and linolenic acid were increased after one year storge.