연구논문 : 친자연형 녹색방재 정책제안

장준호 ( Chun Ho Chang ),장광석 ( Kwang Seok Jang ),이영석 ( Young Seok Lee ) 한국환경정책학회 2010 環境政策 Vol.18 No.1

The term "Green Growth" was first used at The Fifth Ministerial Conference on Environment and Development in Asia and Pacific which was held in Seoul by UN Economic and Social Commission for Asia and Pacific, ESCAP. The Green Growth which breaks down the stereotype that green was not compatible with growth a paradigm to create a incredible synergy effect by the combination between green and growth. The most important concept of Green Growth is its win-win structure based on harmony between economic growth and environment management. But, nobody tell a defence system about new growth system, i. e green disaster prevention system for new generation. That`s why we are going to declare that green disaster prevention policies will be focused on the governmental rules, green IT, and ubiquitous. The details are as follows. At first, we reorganize the disaster prevention rules for climate change. Second, research fund should be increased for high tech green disaster prevention techniques. Third, we have to develop disaster prevention techniques by using the green Information technique(IT) tools. Fourth, Green Disaster Prevention system which use Ubiquitous should be constructed. It should be realized in the range that risk factors caused by economic activity do not go against nature. It makes people coexist with environment.

Free Paper Presentation : OS-53 ; Factors Associated with Smokers` will for Smoking Cessation in Korea

( Ah Young Leem ),( Chang Hoon Han ),( Chul Min Ahn ),( Tae Hoon Jung ),( Yu Il Kim ),( Jae Yeol Kim ),( Sang Haak Lee ),( Eun Mi Chun ),( Kwang Ha Yoo ),( Ji Ye Jung ) 대한결핵 및 호흡기학회 2014 대한결핵 및 호흡기학회 추계학술대회 초록집 Vol.118 No.-

Background: Smoking is known to increase the risk of chronic disease. Understanding of factors that contribute to smoking cessation may help to develop strategies for smoking behavior change. Methods: Pooled cross-sectional data of 11,924 subjects from the Korea National Health and Nutrition Examination Survey II-V were analyzed. The stages of change in smoking cessation were categorized into pre-contemplation, contemplation, and preparation. Baseline characteristics, socioeconomic factors, quality of life, psychological characteristics, and tobacco-related factors were compared between the groups. Results: The study population consisted of 32.4% in pre-contemplation, 54.4% in contemplation, and 13.1% in preparation group. While the proportion for pre-contemplation group (37.4% to 28.4%) tended to decrease from 2001 to 2012, that of preparation group (6.4% to 18.1%) tended to increase. The mean age of pre-contemplation group (48.4±16.2) is higher than comtemplation and preparation group (42.2±13.9 and 44.4±15.3; P=0.02). As levels of education and income status increased, the proportion of pre-contemplation tended to decrease, and that of preparation tended to increase. Proportion of blue collar job in pre-contemplation group was higher than in preparation group (67.9% vs 58.1%; P<0.001). In pre-contemplation group, percentage of suicidal ideation within 1 year was higher than contemplation and preparation group (19.3% vs 16.0% and 16.1%). Upon adjusting analysis, the proportion of pre-contemplation group increased with increasing age (OR=1.01; 95%CI 1.01-1.02), and smoking amount (OR=1.04; 95%CI 1.03-1.05). People of pre-contemplation group (vs. preparation) are be less educated (OR=1.99; 95% CI 1.51-2.62), are in single marital status (OR=1.25; 95%CI 1.04-1.50), have lower prevalence of cardiovascular disease (OR=0.48; 95%CI 0.31-0.76), and do less exercise walking (OR=1.36; 95%CI 1.09-1.69) and weight training (OR=1.59; 95%CI 1.35-1.85). Conclusions: We demonstrated a significant association between the stages of change in smoking cessation and age, education, marital status, cardiovascular disease, and amount of exercise.

해면효과익의 실험적 연구와 PARWIG선의 설계 및 제작

장종희,전호환,정광효,이 준 釜山大學校生産技術硏究所 1997 生産技術硏究所論文集 Vol.53 No.-

지면효과(Wing In Ground Effect, WIG)의 개념은 날개가 지면 가까이 비행할 때 유기저항(Induced drag)의 감소와 양력의 증가로 양항비가 증가하는 것이다. 이러한 효과를 이용하여 지면 또는 해면 가까이 항주함으로서 해면효과익선이 같은 속도의 비행기보다 경제성이 좋은 것으로 평가되어지고 있다. 또한 PAR(Power Augmented Ram)현상은 1970년대경 발견된 것으로서 날개 앞에 부착된 프로펠러의 후류를 날개 밑으로 불어넣어 해면효과익선이 저속에서도 이수할 수 있도록 하여 WIG선의 성능을 향상시키는 계기가 되었다. 본 논문은 풍동을 이용하여 지면에서 날개후연까지 높이의 변화, 앙각의 변화 및 날개끝단판(End- plate)의 변화에 따른 날개의 양력, 항력 및 종방향모멘트를 계측하여 분석하고 2.5m급 무선 조종 PARWIG선의 설계개념과 제작과정에 대해서 설명한다. In the early of the 20th century, it was noted that a wing operating in close proximity to the ground exhibits a reduction in induced drag, which increases its lift/drag ratio. For several decades this phenomenon, called the wing-in-ground-effect(WIG), was studied because it complicated the takeoff and landing of aircraft. In the 1970s, the Power Augmented Ram(PAR) phenomenon was discovered, which significantly enhanced the performance of the WIG concept. The main purpose of this study is to design a 2.5m size, remote control PARWIG model aiming to develop an one manned leisure PARWIG craft. The lift and drag force are measured in a wind tunnel for wings with different flying heights, angles of attack and endplates. Based on the experimental results, 2.5m size model craft is designed and constructed.

炭素鋼中의 크롬擴散과 空孔機構

張忠根,金基元,千光鉉 충남대학교 자연과학연구소 1974 學術硏究誌 Vol.1 No.1

Chromium diffusion into the carburized iron is measured over the temperature range 800℃-1. 200℃. The diffusion coefficient is obtained by the calculation from the diffused time and depth. Chromium diffusion into the carburized iron appears notably over the temperature 900℃, and the diffusion coefficient of chromium decreases with an increase of the cardon concentration ironin. The above experimental results have shown that a major penetration mechanism is jumping into the vacancy which has been made in the transition from BCC iron structure to FCC type. The relationships of the depth of penetration and diffusion coefficient with the Carbon concentration under the constant temperature is given by the equation X_(p)=50(1-0.96C). D=0. 028X_(p)^(2)

수용액에서 연료용 수소를 얻기 위한 MgFe_2O_4 광반도성 전극의 제조와 특성에 대하여

김일광,이홍,최창진,김윤근,천현자 圓光大學校 基礎自然科學硏究所 1987 基礎科學硏究誌 Vol.6 No.2

In the light of the rarity of p-type semiconducting oxides and the unusual properties of the magnesium-iron-oxygen system, it is worthwhile to examine the solied state and photoelectrochemical properties of these materials more closely. This work presented an investigation of the preparation and characterization of magnesium-substituted ironoxid ceramics. Sintered discs of magnesium substituted ironoxides were prepared by conventional powder state mixing techniques. X-ray diffraction and scanning electron microscopy experiments showed that these materials are multiphase, containing both MgFe_2O_4 corundum phase and a spinel phase. More important, photoelectrochemical experiments using the ceramic discs as photoelectrodes showed both cathodic photocurrents and anodic photocurrents under illumination. Photochemical and electrochemcal techniques have been used to show that the inhomogeneities of these materials in the near surface region may be related to the photoelectrochemical properties of the magnesium substituted ironoxide bi-type photoelectrodes.

아질산염 투여가 가토의 혈액중 Methemoglobin 형성에 미치는 영향

김광현,전우복,윤창 全南大學校 農漁村開發硏究所 1991 農業科學技術硏究 Vol.26 No.-

본 연구는 가토에 있어서 아질산염 투여 수준에 따른 Methemoglobin(MHb) 및 혈장내 NO₂-농도의 변화를 관찰하고, 동일 수준의 아질산염 투여조건 하에서 투여방법(경구투여 및 피하투여)을 달리했을 때 MHb 형성 정도를 비교하고자 실시하였던 바 그 결과를 요약하면 다음과 같다. 1. 아질산염 투여량의 증가에 의해 가토 혈액 중 MHb 농도는 증가하였는데 MHb 함량의 최고치는 아질산염 투여 후 0.5~1.0 시간째에 나타났다. 2. 아질산염 투여 후 형성된 MHb 농도는 개체간에 큰 차이가 있었다. 3. 아질산염의 경구투여와 피하주사 후 형성된 MHb의 함량의 최고치는 경구 및 피하투여간에 큰 차이가 없었다. This experiment was conducted in order to investigate the tolerance of sodium nitrite as well hematological in responses in rabibits. Twenty Angora rabbits fed on concentrates were administrated intragastrically 30, 60, 90, 120 and 150mg of NaNo₂as 10mg/ml(W/V) aqueous solution. Blood samples were taken at 0.5 or 1 hr, intervals, and time courses of methemoglobin content of blood and NO₂-concentration in blood plasma were examined. The results obtained were as follows; 1. The administration of sodium nitrite to rabbits caused a rise in the methemoglobin levels with maximum concentration of methemoglobin occuring generally after half an hour to an hour and the level of methemoglobinemia gradually decreased thereafter. 2. There were high individual variation among the test animals in methemoglobin content of blood and NO₂-concentration in plasma. 3. No significant difference was observed between intragastric and subcutaneous administration in the maximum level of methemoglobinemia achieved.

청년기 한국인 남자의 체격과 유연성과의 상관관계

김광천,김동창 중앙대학교 의과대학 의과학연구소 1988 中央醫大誌 Vol.13 No.2

For the study of the physical growth and body flexibility in Korean adolescence male, the stature, span, body weight, standing-trunk flexion and trunk extension of 1182 cases ranging from 15 to 18 years of age were measured and the correlation coefficients were computed between those items. The results obtained were as follows: 1. The average statures by age were 162.08cm at age 15, 167.20cm at age 16, 168,54cm at age 17, 169.46cm at age 18 and the stature growth per year was 2.46cm. 2. The average spans by age were 161.86cm at age 15,167.66cm at age 16,160.82cm at age 17,169.32cm age 18 and the span growth per year was 2.49cm. 3. The average body weights by age were 51.76kg at age 15, 56.90kg at age 16, 59.52kg at age 17, 60.90kg at age 18 and the body weight increase per year was 3.05kg. 4. The averages of standing-trunk flexion by age were 10.08cm at age 15, 11.74cm at age 16, 12.26cm at age 17 and 49.52cm at age 18. 5. The averages of trunk extension by age were 48.86cm at age 15, 49.34cm at age 16, 49.48cm at age 17 and 49.52cm at age 18. 6. The correlation coefficients between stature and span were very high (over 0.8) in any age group, being especially higher in lower age. The correlation coefficients between stature and body weight, and span and body weight also were high in lower age but moderate value in higher age. 7. The correlation coefficients between standing-trunk 11e%ion and trunk extension were low value (under 0.31) in every age group, especially remarkable in 16 years of age. 8. The correlation coefficients between physical measurements and flexibilities were low (undo.0.32) or very low value (under 0.19). 9. The regression equations among all of the items in each age group are tabled for reference.

질산염이 축적된 Italian ryegrass 급여에 따른 면양의 혈액중 Methemoglobin 농도의 경시적 변화

윤창,전우복,김광현 全南大學校 農漁村開發硏究所 1991 農業科學技術硏究 Vol.26 No.-

본 시험은 초기생육기간 중 질소비료의 시비 수준에 따른 사료작물내 질산염 함량에 미치는 영향, 그리고 질산염이 축적된 Italian ryegrass를 면양에 급여한 후 시간경과에 따라 면양 혈액중 methemoglobin(MHb) 농도의 변화를 조사할 목적으로 실시하였던 바 그 결과는 다음과 같다. 1. Italian ryegrass의 질산염 함량은 질소 시비수준의 증가에 따라 유의적으로 증가하였다(p<0.05). 2. 면양의 혈액내 MHb 함량의 평균 최고 농도는 22.5%를 나타냈으며 면양기체간의 차이가 매우 심하게 나타났다. 그리고 Italian ryegrass의 일일 DM 섭취량은 554~750g이었으며 조사료내 NO₃-N의 섭취량은 2.715~3.675g이었다. This study was conducted to investigate the influence of the level of nitrogen fertilization and cutting date on the nitrate accumulation in Italian ryegrass, and the influence of nitrate accumulation in Italian ryegrass feeding on the chang of methemoglobin in sheep. 9 Corriedale wethers(average body weight 33kg) were fed Italian ryegrass containing average 0.469% NO₃-N. Blood samples were taken at 1 hour before feeding and 4, 5, 6, 7, 8, 9, 10 hours after feeding, and then methemoglobin concentration in blood were determined. The results obtained were summarized as follows; 1. Significant difference were observed in nitrate concentration in Italian ryegrass when nitrogen fertilizer were applied(p<0.05). 2. There were large variations among the test animals in the capacity of methemoglobin formation of the Italian ryegrass feeding and DM and NO₃-N intake of Italian ryegrass in sheep was 554 to 750g and 2.715-3.675 in a day respectively.

임대아파트의 수선비용 관리시스템을 위한 데이터베이스 구축

이춘경,정영한,박태근,김광우,김창덕,김옥규,황영삼,박홍석 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1

It shows that a variety of side effects result from the housing-supply policy focused in quantity. In a rental apartment for the low-income group, a shortage of maintenance cost in facilities become aggravated. The rapid progress of obsolete leads the lessor to the economic loss as well as a baneful influence to national economy. Also, the maintenance skill brings inadequacy by reason of technique development focused on new construction. As a result, the cost which needs for maintenance should get accomplished to application toward economy analysis and attempt considered management and financial affairs. Simultaneously, it should keep and administer a lot of data of maintenance affairs during life cycle in apartment and set up the way for aiding the situation of maintenance process.

만성 신부전증 환자의 중중 고혈당에 따른 의식 변화 결정에 대한 연구

위형중,이창범,박성광,강성귀,임천규,박은주,윤경택,한상웅,안유헌,김호중· 대한신장학회 2000 대한신장학회잡지 Vol.19 No.6