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).

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.

산소소비속도를 이용한 퇴비화 미생물의 활성도 평가

정연구,김진수 금오공과대학교 산업기술개발연구원 2000 産業技術開發硏究 Vol.16 No.-

Composting reaction usually proceeds under the dynamic change of some operating conditions such as pH, temperature and ammonia content. The pH value is usually maintained at low level during the initial stage of reaction, resulted from the active decomposition of easily degradable organic materials. The low pH gradually goes up to 8.5~9.0 with a production of ammonia. Along with these changes of operating conditions, reaction temperature also increases to 60℃ or even higher. As pH and temperature increase, the fraction of free ammonia that is responsible for the microbial inhibition also increases. As a results, active production of ammonia could inhibit the microbial activity in composting reaction. We investigated the effects of ammonia on the microbial activity in compost using oxygen consumption rate. The microbial activity of compost was found to be decreased with an increase of ammonia content in compost regardless of water content and temperature. It was also found that water content and temperature had greater effects on the microbial activity than the ammonia content. Additionally, the cumulative amount of oxygen consumed in biological reaction was successfully simulated with a modified Gompertz equation developed in this study.

형질전환 제초제저항성 벼 밀양 204호의 농업적 특성

정응기,이기환,원용재,박향미,전남수,최준호,구연충,한창덕,은무영,김태산,남민희 Plant molecular biology and biotechnology research 2005 Plant molecular biology and biotechnology research Vol.2005 No.

This study was conducted to investigated the major characteristics of genetically modified rice of "Milyang 204" originated from Dongjinbyeo compared to a non-transgenic rice varieties Dongjinbyeo and Junambyeo. Basta resistant transgenic rice lines carrying bar gene produced by the Yeongnam Agricultural Research Institute were evaluated for their agronomic characters. The transgenic Japonica rice of "Milyang 204" showed inferior phenotypic traits compared to a non-transgenic rice variety Dongjinbyeo and Junambyeo. On the basis of UPOV (Union Internationale Pour la Protaection des Obtentions Vegetables) and NSMO(National Seed Management Office) the transgenic "Milyang 204" showed difference in some traits out of some agronomic traits, such as leaf color, angle of flag leaf, number of spikelets, culm length, white core and white belly compared to the nontransgenic varieties rice.

주변성 거대세포 육아종의 증례보고

정연화,조봉혜,나경수,김성수 大韓口腔顎顔面放射線學會 1997 Imaging Science in Dentistry Vol.27 No.2

The authors experienced one case of peripheral giant cell granuloma occurred at the gingiva of right maxillary molar in a 12-year-old male patient. The lesion showed amorphous calcification within soft tissue mass which made difficult to differentiate this lesion from peripheral ossifying fibroma and peripheral odontogenic fibroma clinically and radiographically. The final diagnosis was made histologically.

1998-1999년 절기에 부산지역에서 유행한 인플루엔자 바이러스의 분리

정영기,정명주,이주연,안정배,김지희,김만수,조경순 동의대학교 기초과학연구소 2000 基礎科學硏究論文集 Vol.10 No.1

Investigate the epidemics for influenza outbreaks. The outbreak pattern of the internal and external patients housed in the 10 designated hospitals was monitered to investigated and the characteristics of the virus isolates are as follows. 232 strains of influenza virus was isolated from the oral specimen of 1,320 respiratory disease patients in Pusan from Oct. 1998 to Jun. 1999. Among these isolates, 222 strains were A-type and the rest were B-type. The outbreak pattern for sex-and age-group is as follows. The male outbreak was similar to the female outbreak: male outbreak, 47.4% and female outbreak, 52.5%. Most of the patients were less than 10 years old. The monthly influenza outbreak was consistent from Dec. 1998 to Apr. 1999. and The 113 strains from the A-type isolates were A/Sydney/05/97(H3N2)-like, the 109 strains were A/Beijing/262/95(H1N1)-like, and all of the 10 B-type isolates were B/Harbin/07/94-like.

HPLC를 이용한 Alnus속 식물에서의 diarylheptanoids의 정량분석

정동욱,김준식,조수민,이연아,김광호,김세원,이민원 중앙대학교 약학연구소 1999 약학 논총 Vol.13 No.-

Quantitative determination of diarylheptanoids (oregonin and hirsutanonol), which were characteristic components of Alnus spp. has been conducted by High Performance Liquid Chromatography. The HPLC analysis was carried out using an YMC J'sphere ODS-H80 column [150×4.6mm, S-4μm. 80A(particle)] and a combination of acetonitrile and H2O was used as mobile phase in gradient solvent system. The results showed differnce in the species (Alnus japonica, A hirsuta and A. hirsuta var. sibirica)

두경부 림프관종의 증례보고

정연화,조봉혜,나경수 대한구강악안면방사선학회 2000 Imaging Science in Dentistry Vol.30 No.1

Lymphangiomas are uncommon benign congenital tumors. Most occur in the head and neck and most lesions present by the age of 2 years. We present our experience with four patients who have iymphangiomas of the head and neck with tongue involvement. First case is a 7-year-old male who has the cystic iymphangioma of left submandibular area. Second a 22-year-old female has a lesion involving the border outright tongue. Third case is the iymphangioma which occurs in the right upper lip of a 6-year old male. The last patient is a 28-year old male who fell down and whose right face was swollen up. He had undergone an operation and been treated with steroid before. The characteristic appearances of imaging methods were described and all lesions best depicted on T2-weighted images. Our experience indicates that MRI is useful in the diagnosis and treatment planning of iymphangioma. (Korean J Oral Maxillofac Radiol 2000; 30: 87-91)

Capsicum chinense, 재래종 및 저항성 고추 유전자원에서 역병 저항성 계통 선발

김정훈,여승호,김동우,배수연,한정혜,황희숙,김병수 慶北大學校農業科學技術硏究所 2002 慶北大農學誌 Vol.20 No.-

2000년도에 검정에서 역병에 살아남은 개체들로부터 채종하여 육성한 Capsicum chinense 31계통에 대하여 역병 저항성을 검정한 결과 고도의 저항성을 나타내는 것은 발견되지 않았다. 2001년도의 검정에서 역병에 살아남은 개체로부터 채종한 재래종 26계통에 대하여 다시 역병 저항성 검정을 실시한 결과 KC180, KC230, KC195, KC194에서 다수의 개체가 살아남아 저항성을 나타내었다. 그러나 KC180과 KC230은 각각 AC2258과 CM334와 혼종된 것으로 관찰되었다. KC195와 KC194는 재래종의 형질을 유지하고 있는 것으로 관찰되었다. CM334의 보존 증식과정에 자연교잡이 일어난 것으로 보여 이의 순도향상을 위하여 채종년도별로 시료를 꺼내어 역병저항성 검정을 실시한 결과 가장 오래된 1992년도 채종종자에서부터 약간의 이형주가 관찰도기 시작하여 1995년부터 2001년도까지 시간이 경과함에 따라 많이 변형되어 있는 것을 알 수 있었다. 1992년도 종자에서 이형주를 제거하고 원형의 개체로부터 자식종자를 대량으로 채종하였다. 함께 공시한 AC2258은 순수한 것으로 확인되었다. 1995년도 채종 CM334 종자에서는 비록 혼종은 되었으나 측지발생이 적은 개체들이 발견되어 이들을 개체 선발하여 역병에 저항성이며 측지발생이 적은 계통으로 육성하고 있다. A total of 31 c. chinense lines selected from 2000 screening were tested again for resistance to P. capsici but resistance was not found in the lines. A total of 26 selections from Korean land races tested 2001 spring were tested again for resistance to P. capsici. KC180, KC230, KC195 and KC194 showed moderate resistance to P. capsici. However, it was apparent on the basis of hortivultural characteristics that KC180 and KC230 had been naturally crossed with AC2258 and CM334, respectively. CM334 and AC2248 seed lots that were increased in different years were taken out and tested for resistance to improve their genetic purity because the resistant genetic resources have been showing some off-types in the population. Off-types began to be found in 1992 seed lots and the proportion and degree of the offs was increasing with time up to 2001. Plants true to the type in 1992 seed lots were selected and their inbred seeds were mass produced in a net cage in the greenhouse. AC2258 included in the experiment number of lateral branching at cotyledonary axil, although they were off from the original in the experiment together was uniform. In 1995 seed lost of CM334, plants with resistance to P. capsici and low or no number of lateral branching at cotyledonary axil, although they were off from the original CM334, were found and selection was applied to breed lines fixed in the characters.

대학생들의 다이어트 식습관 실태 조사

김연정,문진아,왕수경 대전대학교 기초과학연구소 2010 自然科學 Vol.21 No.-

대전대학교 교양과목으로 개설된 ‘식생활과 다이어트’ 교과목을 수강하는 남녀 학생 151 명을 대상으로 다이어트 경힘과 함께 그들의 식습관을 알아온 결과는 다음과 같다 조사대상자는 남학생 81 명과 여학생 70명으로 총 151 명이었다. 남학생들의‘식생활과 다이어트’ 수강동기는 식생활 전반에 대해 공부하고 싶다는 응답이 여학생들은 특히 다이어트에 관심이 있어서 라고 응답한 학생이 가장 높아 유의적 차이를 보였다 여학생 중 51 .4%, 남학생 중54.3%는 다이어트에 대한 경험이 있었으며, 다이어트 해 본 시기는 남학생은 대학교 때 여학생은 고등학교 때가 가장 높게 나타나 유의적 차이를 보였다. 다이어트 정보는 남학생과 여학생 모두 인터넷과 경험 있는 친구 나 선배를 통해서가 가장 높게 나타났다. 남녀 학생의 평균 운동 시간은 유의적 차이를 보여 남학생은 주 1 - 3시간 운동하는 학생이 가장 많았고 여학생들의 주 1 시간미만 운동하는 학생이 많았다. 식생활 태도에 대한 조사에서 아침 식사를 하지 않는 학생이 남녀 각각 19.6%. 18.6%로 나타났다. 남학생이 여학생보다 과식하는 경향을 보였으며 간식을 먹는 횟수는 여학생이 많았다. 조사대상자 자신의 식생활의 개선점으로 남녀 학생이 각각 56 .4%와 47.0%가 불규칙한 식사로 답하였다. 이상의 결과로 남녀 학생들이 다이어트에 대한 관심도가 높았고 식습관에 문제가 있어 “식생활과 다이어트”과목을 수강함으로써 식습관과 다이어트 과목을 통한 영양교육이 효과가 있을 것으로 본다. In th is study, 151 students(male were 81 and female were 70enrolled in ‘' Food and Diet course were asked about their diet experiences and food habits . In the question asking the reasons for taking this‘' Food and Diet'class , most male subjects answered they enrolled 'to learn about overall knowledge’, whereas female students answered ' special interest in diet’' led to taking th is class. 67 .1 %of women and 64.2% of men said they put effort to maintain weight. Also , 51 .4%of female and 54.3% of male have experience of diet. The period of diet was most frequent in University for men (33 .3%) and in high school for women (47.1 %). Diet information was gathered from internet of from friends with previous experiences for both genders . It showed students gain little through reading nutrition related books , percentage was low for men and women (3 .7%. 1.4%, respectively). For diet methods. 40% of the subjects in total said they do diet through exercise. Female subjects showed that they've tried many different methods such as yoga and diet therapy . 53 .1 % of male and55.7% of female answered the diet was effective and lost weight. In the questionnaire about the dietary life and habits. percentage of the subjects who do not eat breakfast was 19.6% for men and 18.6% for women. The frequency of excessive eating and taking snacks was higher in men and it showed statistically meaningful result. From above results , we can conclude that the interest in diet was high in both gender and they both have problems regarding eating habits. 80 by taking ‘' Food and Diet’' class , it is predicted that this course will have educational effect on students 'eating habits and their diet.