최근 제주도 도심과 배경지점에서의 CO2 농도 변화 및 복사강제력 영향 연구

이수정 ( Soo-jeong Lee ),송상근 ( Sang-keun Song ),박연희 ( Yeon-hee Park ) 한국환경과학회 2016 한국환경과학회지 Vol.25 No.7

The spatial and temporal variations of CO2 concentrations and radiative forcing (RF) due to CO2 were examined at urban center (Yeon-dong) during 2010-2015 and background sites (Gosan) during 2010-2014 on Jeju Island. The RF at the two sites was estimated based on a simplified expression for calculating RF for the study period. Overall, annual mean CO2 concentrations at the Yeon-dong and Gosan sites have gradually increased, and the concentrations were higher at Yeon-dong (401-422 ppm) than at Gosan (398-404 ppm). The maximum CO2 concentrations at the two sites were observed in winter or spring, followed by fall and summer, with higher concentrations at Yeon-dong. The RF at Yeon-dong (annual mean of up to 0.70 W/m2 in 2015) was higher than that at Gosan (up to 0.46 W/m2 in 2014), possibly because of higher CO2 concentrations at Yeon-dong resulting from population growth and human activities (e.g., fossil fuel combustion). The highest monthly mean RFs at Yeon-dong (approximately 0.92 W/m2) and Gosan (0.52 W/m2) were observed in spring 2015 (Yeon-dong) and spring 2013 (Gosan), whereas the lowest RFs (0.17 and 0.31 W/m2, respectively) in fall 2011 (Yeon-dong) and summer in 2012 (Gosan).

실용음악 전공 학생들의 발성치료 전후 성대 및 음성 특성 비교

황연신,심미란,김철준,최용석,김상연,최찬호,선동일,Hwang, Yeon Shin,Shim, Mi Ran,Kim, Chul Jun,Choi, Yong Suk,Kim, Sang Yeon,Choi, Chan Ho,Sun, Dong Il 대한후두음성언어의학회 2016 대한후두음성언어의학회지 Vol.27 No.2

Background and Objectives : Many students major in applied music singing have various difficulties in phonation when they sing or perform. But the studies about this cause are lack. The purpose of this study is whether singing voice therapy based on vocal music is effective or not to applied music singing students that have difficulties in phonation. Materials and Methods : Singing voice therapy program had been done to 8 students major in applied music singing during 7 weeks. We did laryngeal stroboscope, perceptual, acoustic and aerodynamic examination before and after singing voice therapy to this students. And we studied post examination results have differences or improvements compared to pre examination results. Results : Four male students don't have effective improvement after singing voice therapy but they shows slight improvement in aerodynamic examination values compared to pre examination values. Four female students shows improvement in aerodynamic examination values and pitch range increasing. Above all, one student's vocal nodules disappeared after singing voice therapy. Conclusion : Singing voice therapy based on music singing is very effective to the students major in applied music singing. Above all, their curriculum in applied music singing should include phonation training based on music singing before training perform and technic practices.

테니스 포핸드 스트로크 시 왼팔의 이용 유무가 스트로크의 정확성에 미치는 영향

우상연,최성범,김호묵 순천향대학교 기초과학연구소 2011 순천향자연과학연구 논문집 Vol.17 No.1

The purpose of this study is to analyze and compare accuracy and kinematic characteristics of forehand strokes upon using the left-hand and non the using left hand in tennis. Six unskilled collegiate players who complied primary tennis course participated in this study. Subjects were requested to hit 10 balls with 4 types each: first, it was two directions(down the line, cross), second, it was two velocities(slow ball, fast ball) and then it was type of using left hand. Variables such as accuracy, time, distance, angle and velocity variables were measured by USPTA method and video cameras. The results of this study are as follows: 1) accuracy of hitting balls was not different according to the type of using left hand. While there was an interaction between ball velocity and hitting direction. 2) impact positions of hitting ball were not different according to the type of using left hand. While impact positions were done near by target direction in cross direction then down the line direction. 3) shoulder rotation angle was not different according to the type of using left hand. While shoulder rotation angle was grater in down the line direction than cross direction. 4) the maximum velocity of racket head was faster in using left hand than non using left hand.

구도심의 소외된 근대 유휴공간을 활용한 문화시설 리노베이션 계획 - 서울 종암동 ‘고려시장상가’부지 활용을 중심으로 -

박하연, 이상훈 충북대학교 건설기술연구소 2018 建設技術論文集 Vol.37 No.2

본문 참조

원적산 봉수대 주변정비 기본계획

이상진,김기수,강영조,조승래,홍순연 東亞大學校 建設技術硏究所 2006 硏究論文集 Vol.29 No.2

문화재란 문화가치가 있는 사물로서 국가 가 종교적·세속적 근거에 따라 특별히 지정 한 재산이다. 문화재는 그것이 구현하는 정신적 가치와 시각적 음향적으로 표현하는 수단으로서 그 나라의 독특하고, 다양한 주체성을 보존하는 중요한 매체이기도 하다. 그러므로 문화재는 한나라의 민족역사와 문화로서 과거의 모습을 통해 현재 그리고 나아가 미래를 연결시키는 하나의 매개체인 것이다. 또한 문화재는 그 지역민에게 향토사적 인 자긍심 및 연대의식을 고취시키는 동시에 나아가 한 나라, 세계적인 관심사로 여겨 야 할 것이다. 원적산 봉수대는 양산군청 소재지에서 북쪽으로 약 9.2㎞, 통도사입구 마을인 신평에서 남쪽으로 8㎞지점에 있다. 이 봉수대는 경상남도 기념물 제 118호로써 원적산봉수대 보존회에 의해 복원된 문화재이다. 즉 다른 지역의 문화재와 달리 잊혀 져가는 문화재의 재생을 통해 다시 태어난 문화재인 것이다. 원적산 봉수대 주변정비 기본계획의 목적 은 지역민의 자긍심으로 복원된 봉수대와 주 변과 접근로를 체계적으로 정비를 함으로써 접근성, 전통성, 보존성을 높이고자 한다. 특히, 문화재보호를 위한 제반 법규 및 현지여건에 부합하는 정비방향을 설정하고, 전문 인력과 관련문헌을 바탕으로 문화재 주변을 역사성과 주민친화성, 기능성, 관광성을 함께 갖춘 문화공간으로서의 미래지향적 문화재정비 계획을 추구하고자 한다.

남녀대학생들의 성에 대한 지식,태도,경험과 상관변인에 관한 분석 연구

성영자,정연강 중앙대학교 의과대학 의과학연구소 1984 中央醫大誌 Vol.9 No.3

The purpose of this study is to measure the knowledge and attitudes of sexuality of the students. The subject for this paper were 144 college students from C university and D university, locating in Seoul. For the study, it is used the Sexual Knowledge and Attitude Test(SKAT) which was designed by Lief and Reed and revised by Ebert. The sexual knowledge items are composed of 8 areas; relation, development, action, stimulation, orgasm, motivation, reaction, and body image. The attitudes items are composed of 4 areas; Heterosexual relation, sex education, autoeroticism, and abortion. The sexual experiences items are composed of 6 areas; experience, self-conscious, worth-constitution, permit, masturbation, and adjustment. The results of this study are as follows: 1. The first period to learn the knowledge of sexuality is junior school 61.8%, primary school 20.1%, senier school 15.3%, and college 2.8%. 2. The majority respendents learn from their friend 67.4%, from teachers 13.2%, from parents 8.3%, and other's 11.1%. 3. To get the knowledge, they use the dictionary and expert magazine 48.6%, monthly magazine 27.8%, weekly magazine 9.0%, ratio, T.V. 8.3%, and newspaper 6.3%. 4. Sexual knowledge marks 1.529 in maximum level 2.0 Sexual stimulation was highest level(1.651) in sexual knowledge area. The correlation in sexual stimulation and sex(p<0.001) grade (p<0.001) was statistically significant. Sexual relation and sex(p<0.01), grade(p<0.001) was statistically significant. Artificial conception and sex(p<0.001), grade(p<0.01) was statistically significant. 5. Attitude marks 3.070 in maximum level 5.0. Abortion was highest level 3.224 in attitude area. Sex, and age use statistically significant(p<0.05) in masturbation. Abortion in sex grade and age was no significant(p>0.05). 6. Experience marks 1.573 in maximum level 5.0. Degree of conservation was highest level 2.458 in experience area. Conservatism and sex(p<0.001), grade(p<0.001), age(p<0.05) was statistically significant. Sexual experience in sex(p<0.001), grade(p<0.001), and age(p<0.001) was statistically significant. Masturbation frequency in sex(p<0.001), grade(p<0.01), and age(p<0.05) was statistically significant. 7. In stepwise multiple regression, grade 7.5% among knowledge, age 2.7% among attitude, sex37.1% age 6.3% and mother's educational background 1.8% among experience were possible to explain.

수몰 지역의 영상복원을 위한 정밀기하보정 및 채널선정 비교연구

연상호 한국지리정보학회 2004 한국지리정보학회지 Vol.7 No.1

우리가 살아가고 있는 현실공간에서 사라진 과거의 지형공간을 복원한다는 것은 매우 의미가 있는 실험연구이다. 본 연구는 20여 년 전에 다목적 대형 댐의 건설로 대부분 물속으로 사라진 청풍 호수 주변의 마을을 대상으로 원격탐사기법으로 3차원 지형을 복원하기 위한 연구이다. 수몰 이전의 비교적 해상도가 높은 인공위성 사진과 영상 및 지도를 이용하여 과거의 새로운 영상을 복원하는 실험을 실시하였다. 이로써 영상과 영상의 좌표변환, 영상과 지도와의 정밀기하보정, 과거지도와 참조지도 및 좌표변환을 통하여 DEM과의 중첩오차를 최소화시키고, 영상 복원 시에 손실정보를 최소화하는 최적채널 선정을 통하여 수몰이전을 가장 잘 보여주는 퓨젼영상을 복원할 수 있었다. It's a very meaningful experimental study to image restoration of ancient villages vanished at the real life spatial world. Focused on Cheung-Pyung Lake around where most part were flooded by the Chung-Ju large dam founded in early 1980s, we used remote sensing technique in this study in order to restore topographical features before the flood with 3 dimensional effects. It was gathered comparatively good satellite photos and remotely sensed digital images, then its made a new color image from these and the topographical map which had been made before filled water. This task was putting together two kinds of different timed images. And then, we generated DEM(digital elevation model) including the outskirts of that area as harmonizing current contour lines with the map. That could be a perfect 3D image of Cheung-Pyung around before when it had been flood by making perspective images from all directions, north, south, east and west, for showing there in three dimensions. Also, flying simulation we mde for close visiting can bring us to experience their real space at that time.

工作機械의 Bearing에 對한 考察

延翔欽 忠州大學校 1974 한국교통대학교 논문집 Vol.7 No.-

Bearing used in the machine tool connot be disregarded its minte degree, load, wear and revoluing speed. I think that these problems come from the progress of lubricationg skill. The problems of bearing are the reduction of frictional force, the prevention of wear and overhating and these have an object that smoothes the relative movement, and these neen the firm quality about burden, the minte degree of movement, the decreasing and withering character about the vibration, the prevention of the generation of heat generating from the friction. But to solve these problems the offect of the lubricating drug is large. there fore, to hasten the same direction, I think that we had better expect the progress of lubricating skill.

미성숙영구치의 복합항생제 적용에 의한 변색의 처치: 증례보고

박소연,김영재,김정욱,장기택,이상훈,김종철,한세현,현홍근 大韓小兒齒科學會 2012 大韓小兒齒科學會誌 Vol.39 No.1

The concept of revascularization of necrotic pulps regained interest and became an alternative conservative treatment option for young permanent teeth with immature roots. Revascularization of immature teeth with apical periodontitis depends mainly on disinfection of the canal. Since the infection of the root canal system is considered to be polymicrobial, a combination of drugs would be needed to treat the diverse flora. A triple antibiotic mixture of metronidazole, ciprofloxacin, and minocycline was used as an intracanal medicament. However, discoloration was developed after applying the triple antibiotic mixture. It is believed that the marked discoloration is related to the use of minocycline. The aim of this article was to present cases of coronal discoloration after triple antibiotic therapy in immature tooth and was treated with bleaching technique to control coronal discoloration. In conclusion, revascularization by using triple antibiotics promotes a paradigm shift in treating endodontically involved permanent teeth. However, we should understand that triple antibiotics containing minocycline induces tooth discoloration. Further research to prevent coronal discoloration should be investigated and suggested for the safe use of triple antibiotics. 괴사된 미성숙영구치의 치수치료에 있어서 치수의 재혈관화를 통해 치근단 발육 및 치근형성을 지속하려는 개념이 소개됨 으로써 현재 미성숙영구치의 치수치료의 대안으로 제시되고 있다. 이러한 치근단 염증을 가진 미성숙 영구치의 재혈관화를 위해서는 가장 중요한 것이 근관내 감염된 부분을 확실히 제거하는 살균(disinfection)이다. 근관 내 감염은 여러 세균의 복 합작용으로 일어나기 때문에 철저한 살균에 사용되는 약제의 조합은 다양한 범위의 균주를 모두 제거 가능해야한다. Metronidazole(MN), ciprofloxacin(CF), minocycline(MC)의 세 가지 복합항생제가 약제로 사용되고 있으나 이 복합항생 제 적용 후 치관변색을 일으키는 사례가 보고되고 있다. 이러한 치관변색은 항생제의 성분 중 MC에 의한 것으로 여겨지고 있으며, 본 증례에서는 복합항생제 적용에 의해 야기된 치관변색의 증례를 소개하고 이를 표백술로 처치하여 최종 수복한 증 례를 보고하였다. 복합항생제 적용을 통해 미성숙영구치의 치수치료에 새로운 패러다임을 제시한 것은 분명하지만 치관변색 등의 부작용이 있음을 인지하고 치관변색을 사전에 예방하고 최소화하기 위해 다양한 방법이 강구되어야 할 것이다.

화학적 활성화로 제조한 비산회 흡착제의 중금속 흡착 특성

연익준,박상찬 忠州大學校 2005 한국교통대학교 논문집 Vol.40 No.2

This research was performed to investigate the utilization of fly ash as an adsorbent for effective disposal by recycling of fly ash generated from power plant. The adsorption characteristics of this adsorbent was also studied through the analysis of specific surface area, and removal of heavy mctal ions. The specific surface area of the adsorbent added to 10% Na_(2)SO_(4) at 800℃ was about 2.5~4.0 ㎡/g, which was 8~13 times higher than fly ash. The adsorption of activated charcoal and the manufactured adsorbent at 500 Pb^(2+) ㎎/L at pH 3 were 5.29 ㎎/g and 46.5 ㎎/g, respectively. The removal efficiency of the manufactured adsorbent was about 8.8 times as high as that of activated charcoal, but it was lower for Cu and Cd than activated charcoal.