연구논문 : 제주지역 미세먼지의 장기변동 및 농도변화에 관한 국지기상 분석

박연희 ( Yeon Hee Park ),송상근 ( Sang Keun Song ),이수정 ( Soo Jeong Lee ),김석우 ( Suk Woo Kim ),한승범 ( Seung Bum Han ) 한국환경과학회 2016 한국환경과학회지 Vol.25 No.1

Long-term variations of PM_{10} and the characteristics of local meteorology related to its concentration changes were analyzed at 4 air quality sites (Ido-dong, Yeon-dong, Donghong-dong, and Gosan) in Jeju during two different periods, such as PI (2001-2006) and PII (2007-2013), over a 13-year period. Overall, the long-term trend of PM_{10} was very slightly downward during the whole study period, while the high PM_{10} concentrations in PII were observed more frequently than those in PI. The concentration variations of PM_{10} during the study period was clarified in correlation between PM_{10} and meteorological variables, e.g. the low (high) PM_{10} concentration with large (small) precipitation or high (low) radiation and in part high PM_{10} concentrations (especially, Donghong-dong and Gosan) with strong wind speed and the westerly/northwesterly winds. This was likely to be caused by the transport effect (from the polluted regions of China) rather than the contribution of local emission sources. The PM_{10} concentrations in “Asian dust” and “Haze” weather types were higher, whereas those in “Precipitation”, “Fog”, and “Thunder and Lighting” weather types were lower. The contribution of long-range transport to the observed PM_{10} levels in the urban center (Ido-dong, Yeon-dong, and Donghong-dong), if estimated by comparison to the data of the background site (Gosan), was found to explain about 80% (on average) of its input.

Plenary Session 2 : PS-2-1 ; Outcomes of hepatitis B virus recurrence after liver transplantation: a multicenter analysis in Korea

( Hee Yeon Kim ),( Jong Young Choi ),( Dong Goo Kim ),( Myoung Soo Kim ),( Soon Il Kim ),( Shin Hwang ),( Sung Gyu Lee ),( Kwang Woong Lee ),( Kyung Suk Suh ),( Young Seok Han ),( Dong Lak Choi ),( Se 대한간학회 2012 춘·추계 학술대회 (KASL) Vol.2012 No.-

Background: The outcome of hepatitis B virus (HBV) infection after liver transplantation (LT) was improved by hepatitis B immunoglobulin (HBIG) and nucles(t)ide analogue (NUA). However, HBV recurrence after LT is critical because the recurrence is occasionally accompanied by a progressive destruction of graft and poor survival. The aims of this study were to investigate the significance HBV recurrence and identity factors associated with HBV recurrence. Methods: From October 1999 to February 2011, a total of 2684 consecutive LT recipients who underwent HBV-associated LT were retrospectively enrolled from 7 transplantation centers in Korea. Results: Prophylaxis regimens were HBIG monotherapy (67.7%) or a combination of HBIG with NUA (22.3%). The recurrence rate of HBV was 6.1% (164 recipients) during mean follow-up duration of 10.9 years. The median time from transplantation to recurrence was 2.1 years (0.1-7.9 years). Of the 1,071 patients with hepatocellular carcinoma (HCC) prior to LT, 155 patients (14.5%) had HCC recurrence after transplantation, and 48 patients (31.0%) had HBV recurrence. Of the 48 patients with recurrence of both HBV and HCC, 25 patients (52.1%) experienced HBV recurrence after HCC recurrence. In the multivariate analysis, pretransplant HCC, pretransplant HBV DNA above 5.5 log copies/mL was independent clinical factors influencing HBV recurrence after LT. The mortality rate among the recipients with HBV recurrence was 34.1% (56 recipients). Mean overall survival was 6.4 years in the HBV-recurrence group and 9.9 years in the HBV-nonrecurrence group (p<0.001). HBV recurrence was not an independent prognostic factor for overall survival. HCC recurrence was the most important factor for overall survival. Conclusions: The overall outcome of LT in HBV-related liver disease was excellent with the current prophylaxis regimen Choon Hyuck David Kwon,8 Suk-Koo Lee8 Pretransplant HBV DNA and HCC were important factors for HBV recurrence. HBV recurrence after LT did not significantly influence on the overall survival without combining of HCC recurrence.

연령·표상양식·단어유형이 유아산문학습에 미치는 효과

황구연,최민수,정연숙 진주교육대학교 1990 論文集 Vol.34 No.1

The learning activities of young children have been frequently accomplished through the prose materials varied in the form and the structure. The probe passages mean the language activities that explain, describe, and tell about the objects and events in several sentences. It is needed the concrete materials and the method of instruction in order that young children understand the abstract and complex informations and concepts in prose. The materials of instruction for young children's prose learning involve the pictures, the actions, and the written language that are similar or identical with the prose contents. Thus it is possible to study the relations between Bruner's three repersentational modes (enactive, iconic, symbolic) and the young children's prose learning. The main purpose of this study was to present the appropriate instruction media and method in young children's prose learning by investigating the effects of the repersentational modes, the area, and the kinds of word on young children's memory of key words in prose learning. And the other purpose was to give the basic information in selecting the words for instruction throuh the comparison of nouns and adjectives. The hypotheses of this study are as follows: Hypothesis 1. The young children win recall key words differently in ages. Hypothesis 2. The young children win recall key words better in the conditions of enactive representation and iconic representation than in the condition of symbolic representation, Hypothesis 3. The five, six, seven-year-olds will recall more nouns than adjectives. Hypothesis 4. There win be the interaction effect of the ages and the representational modes. Hypothesis 5. There win be the interaction effect of the representational modes and the kinds of word. For subjects in this study, a total of 90 children who know the written language and go to the kindergarten and the elementary school in Guang-Ju, Ma-San were randomly assigned to the three experimental conditone (actions, pictures, witten languages). The experimental instruments were the actions, the 10 pictures, and the 10 cards with the written languages, and the tapes with the prose passages by the experts. Stein's(1978) "Albert Gets Caught" was used for this study as in Jung Yeon-Suk'a paper(1986). The datas were colleted by the response test consisted of ten items that were divided to 0. 1. and 2 degrees by the responses. The collected dates were analized by the repeated 3×3×2 (Ages × Rrpesentational Modes × Kinds of Word) ANOVA. The following findings were obtained: First, the hypothesis 1 was accepted [F(2, 81) = 1.09, p<,01]. The seven-year-olds (the second grades) rememberd key words better then the five-year-olds and the six-year-olds. But the differonce between the memory of the five- year-olds and that of the six-year-olds was not. Second, the hypothesis 2 was accepted [F(2, 51) = 5.56, P<.01]. Namely the significant differences among the conditions of the notions, the pictures, and the written languages were. The means of the three conditions were 6.78, 6.98, 5.92. And be the mean of the iconic repersentation mods was highest. Third, the hypothesis 3 was sccepted [F(1,81) = 39.68. P<.01]. This indicates the main effect of the kinds of word. And this mians that the kinds of word affect the prose learning of the five, six, and seven-year-olds. Forth, the hypothesis 4 was rejected. the degrees in the three representational modes were consistent in disregard of ages. Fifth, the hypothesis 5 was accepted [F(2, 81) = 3.01, P<.10]. The young children remembered relatively well key words of adjectives in the iconic representation mode.

건설공사의 재해예방에 관한 연구

연길환,조희제,임경택,윤석천 忠南大學校 産業技術硏究所 1994 산업기술연구논문집 Vol.9 No.2

This study aims to review the problems and status of accident and construction projects also to find out the ways of preventing the works from accident. It can let them understand the reasons for the accidents and the way of promoting the awareness of safety. For the study the literature and previous studies are reviewed and then the field managers and safety management members were interviewed intent of status of field safety management and accidents data occurred at domestic construction fields.

R.C.造에서 超音波速度에 미치는 鐵1筋의 影響 : 길이방향鐵筋을 중심으로 On the longitudinal Steel bar

윤석천,정수영,연길환 忠南大學校 産業技術硏究所 1988 산업기술연구논문집 Vol.3 No.2

Ultrasonic testing of a reinforced concrete member by means of the ultrasonic testing apparatus is affected by the steel bar embedded in concrete. A test location avoid the zone of steel effect when selecting test location in reinforced concrete member. But if it is impossible, it is necessary to make a correction to the measured value to provide an estimate of the velocity of the pulse in the plain concrete. The purpose of this study is to analyze the effect of steel bar on ultrasonic pulse velocity and the evaluate optimum correction formular by means of comparison between pulse velocity in concrete and effective pulse velocity according to steel bar diameters. Concrete mixes having water cement ratio of 0.4 and 0.6 by weight and slump values of 18㎝ in fresh concrete were used to make 20×30×60㎝ cubes for pulse velocity in concrete and effective pulse velocity. The diameters of the plain bars were 6, 9, 12, 19, 25, 32, 38 and 50㎜.

대엽성 폐렴의 양상을 보인 폐 Cryptococcosis 1예

박석영,윤영연,오귀염,권낙기 대한화학요법학회 1996 대한화학요법학회지 Vol.14 No.2

A 26 year old lady was admitted due to fever and productive coughing of 10 days duration. She had been working at the office treating stuffs of oriental herb medicine without any problem in her health by then. Chest films revealed consolidative changes involving Lt. lower lobe and she was given systemic antibacterial antibiotics, but her illness was not improved. On 19th hospital day needle biopsy was performed and cryptococcosis was diagnosed involving both alveoli and intertitium. Antifungal agent, itraconazole, was prescribed for 10 weeks and the lesion was resolved completely without remnant change. We discussed this case with review of literatures.

葉煙草의 混植集團에 있어서 主要形質의 生態的 變異

孫錫龍,朴然圭 충북대학교 엽연초연구소 1983 煙草硏究 Vol.10 No.-

In the mixture planting ratio of tobacco cultivar Y.S.A. and Hicks were investigated on the variation of the leaf characters under field condition. Planting ratio of the above two cultivar were 100 : 0, 75 : 25, 50 : 50, 25 : 75 and 0 : 100 respectively. The results were summarized as follow. 1.Even though the growth characters of Y.S.A. and Hicks were different, the responses to mixture planting ratio were almost the same. The optimum mixture planting ratio of two cultivar for leaf length and leaf width were within a range of 100 % and 25 %, 2.The order of the mixture planting ratio for increases leaf length and leaf width of two cultivar was 100%>25%>75%>50%. 3.The ratio of leaf length to leaf width increased with 75 % mixture planting ratio, but its decreased lenearly with lower leaf position. Leaf length and leaf width of leaf decreased in relation to decreasing mixture planting ratio, but increaesd below a certain of mixture planting ratio. From theses results, it was concluded that mixture planting ratio with two cultivar is not necessary for a good growth of leaf length, leaf width and leaf area of the tobacco plant.

국제회의 참가자의 국제회의 기획업에 대한 만족도 조사에 관한 연구

남태석,정연국,최정은 한국관광정책학회 2000 觀光政策學硏究 Vol.6 No.3

Conventions have become extremely important in today's business world. Every fields has its conventions : Professions, trade unionism, education, arts, commerce, politics, and fraternalism all rely on conventions to bring together the membership's cross section of ideas. At past sutudies, there were few detailed studied for the PCO services in Korea even though they have taken several accesses to the international convention in the hardware aspect like facilities as well as in the software aspect. Whereas, for the activation of the international convention industry, this study shows how much the participant are satisfied with the service of the PCO, and then presents the way out of tough conditions of Korean tourism as holding more international convention, which invites quality foreign tourists in large number. Therefore the object of this study shall be of help to the desirable development of international convention industry through the survey of the satisfaction with the PCO service based on the positive investigation and the view of attendant. In a common view of domestic and foreign people, while Korean PCO comes up to the standard in the planning and working out the international convention, it cannot meet the various requirements of attendants in the specialized knowledge interpretation and relationship. Therefore it needs the new establishment of the developend and systmatic departure to bring up the specialized PCO.

急性骨髓性 白血病에서의 試驗管內 集落細胞 形成에 관한 연구

고석만,조덕연,박철신,강원권,김민범,김삼용,노흥규 충남대학교 의과대학 지역사회의학연구소 1988 충남의대잡지 Vol.15 No.2

To evaluate the in vitro granulocyte-macrophage colony formation in acute myfloblastic leukemia and the prognostic implications of these results, the author performed the in vitro agar culture of bone marrow cells in 10 patients with acute myeloblastic leukemia (AML) and 5 control subjects. Culture medium was composed of 20% fetal calf serum(FCS), 50% Iscove's medium, 0.3% agar, 10% colony stimulation factor (CSF), and 2 × 10 exp (5) cells/ml. Human placental conditioned medium (HPCM) and phytohemagglutinin-leukocyte conditioned medium (PHA-LCM) were used as colony stimulating factor. Colony counting was done on 7th day of culture. Colony was defi ned as containg 20 or more cells, and cluster was defined as containing 3-19 cells. The results were as followings, 1. In control subjects, the number of clusters formed was 3-47/2 × 10 exp (5) cells (20±19)and that of colonies was 5-24/2 × 10 exp (5) cells (14±9) when stimulated with HPCM. When stimulated with PHA-LCM, the number of clusters formed 5-39/2 × 10 exp (5) cells(18±16) and that of colonies was 6-13/2 × 10 exp (5) cells (9±3). 2. In AML patients, 3 groups were recognized according to pattern of colony formation: 1) non-forming 2) cluster forming 3) both cluster and colony forming. Of 10 cases, 5 cases Were `non-forming', 2 cases were `cluster forming'; and 3cases wer cluster and `colony forming'; 3. All 5 cases 'non-forming' cases, one of 2 cases of `cluster forming'; and none of 3 cases of `cluster and colony forming' achieved complete remission. So, there was significa nt difference in remission rate in the different growth types. These results suggest that granulopoiesis in AML patients is impaired and the pattern of in vitro CFU-L(colony forming unit-leukemia) formation has prognostic significance.

최근 10년간 원광의대병원에서 시행한 소아 심장혈관 수술의 임상적 고찰

윤향석,정수미,최두영,오광수,오연균,김종덕,양현웅,이삼윤,김형곤,최종범,최순호,노병석 圓光大學校 醫科學硏究所 1995 圓光醫科學 Vol.11 No.2

We reviewed 10 years experiences of the clinical aspects and early postoperative results in 544 pediatric patients(age less than 16 years old). Among them. 529 cases had the congenital heart diseases, and 15 had the acquired diseases. Open heart surgery was performed in 413 patients. 115 cases were treated with non-open heart surgery. 16 with interventional catheterization. Annual increase of the cardiac patients was not significant in recent 10 years, except slight increase in 1994. The mean age of the study patients had been evidently changed to younger year by year. Total mortality rate of the open heart surgery was 6.4%. The cyanotic congenital heart diseases were high in early postoperative mortality by 25.7%, whereas 4% in acyanotic group. The age group less than one month was most highest in surgical mortality(66.7%). There were no deaths in patients with patent ductus arteriosus(103 cases), atrial septal defect(83 cases) or pulmonary stenosis(17 cases). Among 220 patients with ventricular septal defects(VSD). 10(4.5%) were died early postoperatively. In cyanotic group, the patients with pulmonary atresia with ventricular septal defects(PAVSD), transposition of the great arteries(TGA), interrupted aortic arch(IAA), complex cardiac anomalies with isomerism seemed to be most susceptible to an early death.