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.

초등학교 과학 수업에서 발생 학습 모형의 적절성 분석

정병석,장연수,정진우 한국교원대학교 과학교육연구소 1997 청람과학교육연구논총 Vol.7 No.1

The major purpose of this study was to analysis the appropriateness of generative learning model in primary science teaching. For this study, 41 children were selected from the 6th grade, and the model was applied to the samples for nine weeks(26hours) Various of teaching analysis tools and testing papers such as analysis framework for teaching, questionnaire for surveying conceptions, science inquiry ability and scientific interest etc were used. The conclusions of the study are as follows: Making a teaching plan for generative learning is required much time to the teachers, but it is useful in science teaching for using continuously this generative learning model is much better effective in applying for a long run. Because it's teaching strategy is almost discussion method it is vary interesting and understandable for students to take a science class. Also, generative learning model is vary effective in changing to conceptions, for example, such as surface change cased by earthquake and intensity of magnetic fields. This model is partially appropriateness for improving in science process skills and scientific attitude and interest to students. In a world, application for generative learning model is appropriateness in changing children's ideas, but it is requires much for a long per.

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.

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.

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)

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.

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)

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.

초등실과 전기기구 다루기 단원의 CD-ROM 개발과 수업에의 적용 효과

윤정한,김동연,김진수 韓國實科敎育硏究學會 2001 實科敎育硏究 Vol.7 No.1

The purposes of this study was to develop CD-ROM on manipulating the electric appliances unit for the fourth grade students in elementary practical arts curriculum, and to verify the effect of it for helping students acquire the basic knowledge of manipulating the electric appliances and teachers improve teaching method. The developed CD-ROM title had the following features. 1.The learning content of this CD-ROM title was consisted around manipulating the electric appliances unit for the fourth grade students in elementary practical arts curriculum. 2.This CD-ROM title was developed using various graphics, photos, movable image and animation to motivate elementary school students and to raise the effect of learning. 3.The learning content of this CD-ROM title was consisted around the fourth grad practical arts text in elementary school to utilize this CD-ROM title in class effectively. 4.This CD-ROM title was developed with authoring tool, Tool Book 5.0 of Asymetrix. 5.The basic learning topic of this CD-ROM title was composed of five specific topics for consideration of learner's interest. The results of application of this CD-ROM title were as follows: 1.There was a meaningful difference(p<0.05) between experimental group and control group on the effect of achievement. 2.There was a meaningful difference in girl students, but not a meaningful difference in boy students on the effect of achievement.