EXPERIMENTS ON THE INTERACTION OF WATER SPRAYS WITH POOL FIRES

Han,Yong-Shik,Kim,Myung-Bae,Shin,Hyun-Dong 한국화재소방학회 1997 한국화재소방학회 학술대회 논문집 Vol.1997 No.-

A series of measurements and visualization to investigate the interaction of water sprays with pool fires is presented. Fire source is a small-scale pool burner with methanol, ethanol and gasoline. Measurements of temperatures, <TEX>$O_2$</TEX>, <TEX>$CO_2$</TEX>, and CO concentrations along the plume centerline are carried out to observe pool fire structures without water sprays. Visualization by the Ar-ion laser sheet shows flow pattern of droplets of the sprays above the pool fires. It is observed that in the case of methanol and ethanol, water sprays continuously penetrate into the center of fuel surfaces. The gasoline pool fire allows intermittent penetration of water sprays because of pulsating characteristics of the gasoline flame. To evaluate the cooling effect of the fuel surface by the sprays, the temperature was measured at the fuel surface. As soon as the mists reach the fuel surface of methanol and ethanol, the temperatures of the fuel surface decrease rapidly below the boiling point, and then the fires are extinguished. Due to the application of mist upon the gasoline fire, though the fuel temperature decrease abruptly at the time of the injection, such a rapid decrease do not continue till the extinction point.

국내에서 보고된 사암침법에 대한 연구 동향

한창현(Han changhyun),신미숙(Shin misuk),박선희(Park sunhee),최선미(Choi sunmi) 한국한의학연구원 2006 한국한의학연구원논문집 Vol.12 No.2

Background The Saam's Acupuncture Method is one of the most widely adopted techniques used by clinicians and educational institutions in Korea today. It is originated in the 17th century from a Buddhist monk known as "Saam''. The reports on the bibliography, biological responses and therapeutic effects of Saam's Acupuncture method were done but trends on the Saam's Acupuncture method were insufficient. Objectives This study aims to review the bibliography, biological responses and therapeutic effects of Saam's Acupuncture. In the process, this review will grasp trends in this field of studies and will direct further researches into the right direction. Method We searched and investigated the journals supplied by Korean Oriental Medical Society and Je-Han Oriental Medical Academy homepage etc. with the key world "Saam(사암), jung-geuk(정격), seung-gyuk(승격), han-geuk(한격), yu1-geuk(열격)". Fifty journals were chosen for the review. Result 1. The proportion of basic researches was 10%. The biological responses of Saam's Acupuncture method reveal on blood pressure, regional cerebral blood flow (rCBF). 2. The proportion of literature researches was 48%. The application of Saam's Acupuncture method was many. 3. The proportion of case reports was 26%. Saam's Acupuncture method is applied in the various disease. 4. The proportion of clinical studies was 16%. Clinical studies were increased after the year 2000. Conclusions To elevated quality of studies, we needs well-designed experimental methods, efficient secure of experimental groups, appropriate statistical verification, accumulations of knowledges about data research.

자금재조달위험이 경영자 이익예측에 미치는 영향

유일한(Yu, Il-han),신상훈(Shin, Sang-hoon),유승원(Yoo, Seung-weon) 한국국제회계학회 2017 국제회계연구 Vol.0 No.72

본 논문에서는 자금재조달 위험이 경영자 이익예측에 미치는 영향에 대하여 연구하였다. 구체적으로 2004년부터 2014년까지 유가증권 상장기업의 경영자이익예측정보를 이용하여 자금재조달 위험이 경영자 이익예측의 편의에 미치는 영향에 대하여 분석하였다. 연구결과 첫째, 자금재조달 위험이 경영자 이익예측의 낙관성에 영향을 미치는 것으로 나타났다. 자본시장을 통한 자금재조달을 앞둔 경영자는 자본비용의 감소를 위해 기업의 미래성과를 낙관적으로 조망함으로써 긍정적인 시장의 전망을 유도할 유인이 있는 것으로 보인다. 둘째, 현금 보유비율이 낮은 기업일수록 경영자가 이익예측을 낙관적으로 할 가능성이 더 큰 것으로 나타났다. 자금재조달을 앞두고 충분한 현금을 보유하고 있는 회사의 경우 그렇지 않은 회사에 비해 자금재조달 시에 발생 가능한 여러 위험에 보다 유연하게 대응할 수 있다. 따라서 현금 보유비율이 높은 기업의 경우 경영자들에게 낙관적 이익예측을 통해 시장의 긍정적인 반응을 유도할 유인이 줄어드는 것이다. 이는 현금 보유비율이 높이는 것이 자금재조달 위험을 낮추는 방편 중 하나가 될 수 있다는 선행연구(Jarrad Harford 2014)와도 일관된 결과이다. 본 연구는 자금재조달 위험이 기업 영업에 중요한 논제임에 비해 국내 연구가 미진한 현 상황에서 자금재조달 위험이 경영자의 이익조정 뿐만 아니라 이익예측 관련 공시 정보에도 영향을 미칠 수 있음을 입증하였다는 점에서 의의가 있다. 또한 자금재조달 위험에 따른 경영자들의 이익예측 편의는 경영자들의 기회주의적 면모를 재조명한 것으로 볼 수도 있다. 나아가 본 논문은 현금보유 수준에 따라 경영자 이익 예측 성향이 달라질 수 있음을 입증하며 자금 대여자들의 의사결정에 필요한 시사점을 제공하리라 생각한다. In this paper, we investigate the effect of fund re-financing risk on managerial earnings forecast. Specifically, from 2004 to 2014, we analyzed the effects of the risk of refinancing of funds on the convenience of managerial earnings forecasts using information on managerial earnings forecasts of listed companies. The results of this study are as follows: First, the risk of refinancing affects the optimism of managerial earnings forecast. Management seems to have an incentive to induce a positive market outlook by optimizing the future performance of the company in order to reduce capital costs. Second, the lower the cash holding ratio, the more likely the manager is likely to be optimistic about earnings forecasts. Companies that have sufficient cash ahead of their refinancing can respond more flexibly to the risks that may arise when refinancing funds compared to non-cash companies. Therefore, for firms with high cash holdings, the incentive to induce positive responses to the market through optimistic earnings forecasts is reduced. This is consistent with Jarrad Harford (2014), which suggests that increasing cash holdings can be one of the ways to lower the risk of refinancing. This study has proved that the risk of refinancing is influential not only on managers" profit adjustment but also on profit forecasting information in the current situation where domestic research is insufficient. In addition, managers" profit forecasting convenience due to the risk of refinancing of funds can be seen as a reexamination of opportunistic aspects of management. In addition, this paper proves that the propensity to predict earnings will vary according to the level of cash holdings and will provide implications for women"s decision making.

강원도 화천군 수달(Lutra lutra) 서식지의 식생 구조

서형수 ( Hyung Soo Seo ),신영섭 ( Young Seob Shin ),이경은 ( Kyung Eun Lee ),김윤미 ( Yoon Mi Kim ),전미나 ( Mina Jeon ),남택우 ( Taek Woo Nam ),한성용 ( Sung Yong Han ),정연숙 ( Yeonsook Choung ) 한국하천호수학회 2014 생태와 환경 Vol.47 No.special

In order to determine whether vegetation would be one of the factors for the selection of otter home range, vegetation structure and other potential factors were studied in Hwacheon, Korea. Thirteen sites, otter’s activity found and not found, were investigated in North Han River and connected tributary streams of Hwacheon-gun. Three types of vegetation were classified by cluster analysis, which is short grass, tall grass and shrub type. Vegetation zone of each channel is composed of either one type, or mosaic of tall grass and shrub type. Short grass type is common in Lake Paro and upper North Han-river where water level is highly variable throughout a year. Therefore, annual species such as Persicaria nodosa, Fimbristylis dichotomam and Chenopodium ficifolium are the most dominant. Shrub type is common at the downstream sites of Jichon stream and along mainstream of North Han River down Lake Paro. A shrub species, Salix koreensis, is the most common. Tall grass type is dominant occupying the most vegetation zone of the tributary channels. Phragmites japonica is absolutely dominant. Due to its dense cover, a few plant species are co-existed. Otter activity was found in all three vegetation types and no marked activity was found at some sites of tall grass type. There is no difference in species composition and physiognomy between tall grass sites with and without otter activity, while it shows significant difference in fish availability between two groups. Overall we found that home range of otters in the region is along the mainstream and downstream of tributary streams with high fish availability in all vegetation types and in various human activity levels.

한강하구지역에서 월동하는 재두루미(Grus vipio)의 개체군 감소

이화수(Hwa-Su Lee),신주열(Ju-Yeol Shin),이시완(Si-Wan Lee),강태한(Tae-Han Kang),윤순영(Soon-Young Yoon),김정수(Jungsoo Kim) 한국조류학회II 2012 한국조류학회지 Vol.19 No.4

김포시와 고양시 일대의 한강하구 지역은 우리나라에서 재두루미의 가장 중요한 월동지 및 중간기착지로 알려져 있지만, 이 지역의 조류 서식환경은 심각한 개발압력과 인간의 간섭으로 인해 지속적으로 나빠지고 있다. 따라서 본 연구에서는 2007-2008년과 2011-2012년의 월동시기에 본 지역에 도래하는 재두루미를 대상으로 월동 개체군 크기 변화와 월동지역 내에서 과거와 현재의 취식지역 이용 현황 등을 조사하여 개발행위가 이들의 서식에 미치는 영향을 확인하였다. 본 지역에서 월동하는 재두루미 개체군은 평균 124.9개체(2007-2008년)에서 59.0개체(2011-2012년)로 감소하였으며, 주요 취식지역에서 확인된 개체수는 평균 77.7개체에서 24.1개체로 감소하여 월동개체군의 감소폭에 비해 주요 취식지역의 이용 개체수의 감소폭이 더 크게 나타났다. 유형별 분석에서는 가족군에 비해 무리군의 개체수가 많이 감소한 것으로 나타났으나, 홍도평 지역의 가족군 이용 개체수는 변화가 나타나지 않았다(Mann-Whitney test. Z=-0.26, p=0.979). 그리고 과거 다수의 재두루미가 주요 취식지역으로 이용하였던 송포동과 평동지역은 2012-2013년 조사에서는 거의 이용하지 않는 것으로 나타났다. 이는 위 지역의 개발행위(예: 제 2자유로 건설 등)와 깊은 연관성이 있는 것으로 생각된다. Han-river estuary in Gimpo and Goyang city is well known as one of the most important wintering and stopover sites for migrating White-naped Crane (Grus vipio) in Korea. Nowadays, habitat quality of this area is getting worse due to serious development pressure and high human disturbances. So, we wanted to know whether development actions affected total wintering population change in Han-river estuary and feeding group pattern of White-naped Crane in main feeding habitats between the 2007-2008 and 2011-2012 wintering period. Average wintering population was decreased 124.9 to 59.0 and population of main feeding site also decreased 77.7 to 24.1. But decrease rate of main feeding site population was higher than total wintering population. Non-family feeding population was more decrease than family feeding population in the flock type analysis. But family feeding population of Hongdopyong was maintained from past and present (Mann-Whitney test. Z=-0.26, p=0.979). However, almost all White-naped Crane din not use both feeding sites, Pyong-dong and Songpo-dong, where were deteriorated habitat quality by human act.

多國籍 企業의 價格決定戰略에 관한 硏究

신한원 韓國海洋大學校 社會科學大學 1996 韓國海洋大學校 社會科學硏究論叢 Vol.- No.3

볼리비아 로즈목에 의한 다형홍반 양상을 보인 직업성 알레르기 접촉피부염 증례

신주연,홍윤철,임종한,박신구,이지나,김환철 大韓産業醫學會 2004 대한직업환경의학회지 Vol.16 No.2

배경 : 로즈목(rosewoods) 중 볼리비아 로즈목(Machaerium Scleroxyon)은 강력한 감작물질을 함유하고 있어서 외국에서는 이로 인한 자극 또는 알레르기 접촉피부염의 발생이 증가하고 있음에도 불구하고 지금까지 우리나라에서는 볼리비아 로즈목을 비롯한 수입목재에 의한 직업성 피부질환의 보고가 부족하였고, 이에 저자들이 볼리비아 로즈목에 의한 다형홍반 양상을 보인 직업성 알레르기 접촉피부염의 증례를 경험하였기에 보고하고자 한다. 증례 : 49세 남자로서 여러 가지 수입목재를 절단하고, 다듬는 작업을 하다가 소양감을 동반한 홍반성의 피부 증상이 발현되었고, 전신으로 증상부위가 확대되어 2주 동안 병원 입원 치료를 하게 되었으며, 이후 본원 산업의학과에서 피부첩포 검사 후 최종적으로 볼리비아 로즈목에 의한 알레르기 접촉피부염으로 확진되었다. 결론 : 수입목재들로 인한 직업성 피부질환 발생에 대한 광범위한 실테 조사가 필요하며, 이를 토대로 작업장에서의 직업성 피부질환의 발생을 감소시키기 위한 다각적인 예방, 관리 대책의 수립이 필요하다. Background: Woods are capable of causing allergic or irritant contact dermatitis which typically occurs on exposed areas. Because Bolivian rosewood exclusively contains the strong sensitizer R-3,4-dimethoxdalbergione, an increasing number of cases of initant and allergic contact dermatitis has been reported. Case report: A 49-year-old, male, wood worker, who handled a variety of woods, developed allergic contact dermatitis. A patch test confirmed a positive reaction to one of the exotic woods, Bolivian rosewood. Allergens found in Bolivian rosewood caused this patient's dermatitis, which cleared when he avoided &is wood. Conclusion: Exotic woods such as Bolivian rosewood can induce occupaiional contact dermatitis. Measures to lower the incidence of work-related dermatitis are needed in the workplace. Especially, when cutting or sanding woods, workers should wear proper personal protection.

제주재래마 특이 표지인자 개발

신택순,김선구,강한석,이길왕,조병욱,전해열 密陽産業大學校 農業技術開發硏究所 1998 農業技術開發硏究所報 Vol.2 No.1

본 연구는 제주재래마의 유전적 특성파악과 이를 통한 타품종과의 유전적 특이성을 가지는 DNA 표지인자를 개발하고자 PCR-RAPD기법을 이용하여 제주재래마와 더러브렛, 가고시마의 3품종에서의 다형 band에 대한 특성파악을 실시한 결과이다. 각 품종별로 10두의 혈액을 혼합한 후 분석하였고 200개의 random primer들 중 PCR증폭양상의 재현성을 기준으로 70개의 primer를 선별하였다. 또한 선별된 primer들중 다형성을 9개의 primer를 이용하여 개체별 DNA분석을 실시하였으며 9개의 prkmer에 의해 나타난 15개의 band는 제주재래마 특이 band, 4개는 더러브렛종에 그리고 4개는 가지고시마 재래마에 품종특이 RAPD band가 나타났다. 따라서 RAPD기법에 의해 품종간의 차이를 보이는 표지인자의 개발이 가능할 뿐 아니라 품종간의 특성차이를 보이는 유전인자 개발과 특성파악이 용이한 것으로 평가되었다. This study was carried out using PCR-RAPD technique to estimate genetic characteristics of Cheju Horse (Jorangmal) and to develop the DNA marker for bread identification in horse. Each three horse breeds was represented by pooled DNA from 10 individuals and tested for 200 different random primers for their reproducible PCR pattern. From them 70 primer were selected and 9 primers were used to detect the difference between breeds at the individual level. Fifteen highly polymorphic bands were observed between breeds using 9 primers . Additionally, the 15 most polymorphic bands showed great difference between breeds in their appearing frequencies, implicating their usefulness in the breed discrimination and in the characterization of genetic structure. Therefore, the polymorphism of RAPD could be used in characterizing genomic difference between breeds and some genetic mechanism that give rise to breed disctimination in horse.

저압 증발하의 열교환 특성에 관한 연구

신유식,이윤환,서종수,전영흥,정효민,정한식 경상대학교 해양산업연구소 2002 해양산업연구소보 Vol.15 No.-

The purpose of this research is to obtain the characteristics of heat transfer or heat exchange under the vacuum pressure. The general heat transfer or heat exchange can be changed with the experimental environment. In this report, the exothermic calorie and endothermic calorie were measured under the vacuum chamber. These two kinds of calories show the evaporative and condensing sides, respectively, and these calories were measured by using the parameter with flow rate.

두경부 암환자의 항암화학요법에 따른 삶의 질 변화

신혜숙,박혜자,박명희,연기순,김훈교,문한림,송혜향 가톨릭대학교 가톨릭대학교 간호대학 호스피스 교육연구소 1999 호스피스논집 Vol.4 No.-

The purpose of this study was to assess the changes in quality of life wish elapse of chemotherapy in head and neck cancer patients. This study was a longitudinal descriptive design. The subjects were 9 patients who had stage III and stage IV head and neck cancer and received neoadjuvant cisplatin and 5-fluorouracil chemotherapy. Linear Analogue Self Assessment Scale (LASA) of the QOL which it includes eleven items(seven physical items appetite, nausea/vomiting, physical well-being, vigor activity, energy, sleepiness, fatigue and four mental items anger, anxiety, depression & vital power) were used to assess the quality of life eleven times(once in the prechemotherapy period and from the 1st day to 10th day postchemotherapy). The means of scores at each time were analyzed by repealed measures of ANOVA and Bonferroni multiple comparison method. The results are as follows : 1. The degree of appetites decreased significantly on the period between third and sixth day compared with that of appetites on the prechemotherapy day (p<0.001). 2. The degree of physical well-being decreased significantly on the period between first and fifth day compared with that of physical well-being on the prechemotherapy day (p<0.001). 3. The degree of nausea/vomiting decreased significantly on the period between first and fourth day compared with that of appetites on the prechemotherapy day (p<0.001). 4. The degree of anger decreased significantly on the second, fourth, eighth and ninth day after chemotherapy compared with that of anger on the prechemotherapy day(p<0.001). 5. The degree of fatigue decreased significantly on the fourth day compared with that of fatigue on the prechemotherapy day(p<0.001). 6. The increment of nausea/vomiting and poor appetite started on the 2.89th day and 3.67th day after chemotherapy, respectively. 7. The increment of sleepiness started on the 2.56th day after chemotherapy. 8. The increment of depression and anxiety started on the 2.33th day and 3.33th day after chemotherapy, respectively. 9. The lowest degrees of nausea/vomiting and poor appetite were 37.00±17.9 % and 28.64±14.94 % after chemotherapy compared with those of nausea/vomiting and poor appetite on the prechemotherapy day, respectively. 10. The lowest degrees of anger and vigor activity were 48.12±28.3 % and 39.83±24.9 % after chemotherapy compared with those of anger and vigor activity on the prechemotherapy day, respectively. 11. The recovery rates of eight items of quality of life (appetite, vigor activity, energy, fatigue, anger, anxiety, depression & vital power) were shown to reach a peak on the tenth day after chemotherapy and be reached to almost 84 % compared with those of quality of life on the prechemotherapy day. 12. The recovery rates of physical well-being and sleepiness were shown to reach to 67.75 % and 95.68 % on the 10th day after chemotherapy compared with those of physical well-belong and sleepiness on the prechemotherapy day. 13. The recovery rates of seven physical items were faster than those of four mental items on the 10th day after chemotherapy. In conclusion, it is suggested that nursing care strategies to improve the quality of life in patients with chemotherapy would be established both physically and mentally, and be extended at least ten days when patients stayed their home after chemotherapy.