우리나라 피혁제조업의 현황과 문제점

이삼근 부산수산대학교 1990 (最高經營管理者課程)論文集 Vol.1990 No.4

[Cp₂Ti(Ⅲ)(1-benzoylacetonato)화합물과 알킬알루미늄화합물의 촉매계에 의한 스티렌 중합반응

이삼근,이동구 대전대학교 기초과학연구소 2002 自然科學 Vol.13 No.1

[Cp₂Ti(Ⅲ)(1-benzoylacetonato)과 조촉매인 알킬알루미늄화합물로 구성된 촉매계를 이용하여 스티렌을 중합하였으며, 생성된 고분자는 ^(13)C NMR 스펙트럼 연구결과 atatic-폴리스티렌이었다. 고분자 반응에 영향을 주는 조건인 주촉매의 농도, 조촉매인 DEAC의 농도와 주촉매의 농도 비율, 반응시간 및 반응온도에 따른 연구를 수행하였다. 고분자 반응은 반응온도에 영향을 받지 않으며 폴리스티렌으로의 전환 비율이 가장 큰 경우는 DEAC의 농도와 주촉매의 농도 비율이 30인 경우이며 고분자 반응은 6시간만에 완료된다. 연구한 조건에서 생성된 폴리스티렌의 분자량은 2,200 - 3,200이었으며, 중합온도가 증가하면 분자량은 감소하고 분산도는 증가하며, 티타늄 촉매에 대한 조촉매의 몰 비율을 증가시키면 분자량과 분산도가 증가하는 경향을 보였다. Polystyrene was prepared in the presence of a catalyst composed of [Cp₂Ti(Ⅲ)( 1-benzoylacetonato)] and alkylaluminum as cocatalyst. The resultant polymer is atatic-polystyrene judging by ^(13)C NMR spectra. Influences of various polpmerizations, e.g., [Ti], [DEACI/"Til, time and temperature were studied. It was found that polymerization reaction is not dependent on the reaction temperature, and the highest conversion of styrene to polystyrene can be obtained when the molar ratio of [DEAC] to [Ti] is 30. The polymerization reaction is almost finished in 6 hours. The molecular weight of the polystyrene ranged from 2,200 to 3,200 and was decreased and the molecular weight distribution was increased with increasing the reaction temperature. The higher the molar ratio of DEAC to titanium catalyst was used, the higher was the molecular weight and the molecular weight distribution.

< 수산해양 및 해양환경 분야 > : 진해만 와편조류 휴면표자의 분포와 발아 특성

이삼근,김학균,안경호,심정민 한국수산학회 1994 춘계학술발표회 Vol.- No.-

鎭海灣에 出現하는 有毒 鞭毛藻類의 分類 : Taxonomy of Marine Toxic Flagellates in Chinhae Bay ⅠAlexandrium sp., responsible for paralytic shellfish poison

文成基,李三根 慶星大學校 1991 論文集 Vol.12 No.2

The classification of Alexandrium, responsible for PSP(paralytic shellfish poison) was investigated during period from 1984 to 1990 on Chonhae Bay, where flagellate red tides have frequently occurred as a result of increasing of domestic and industrial sewages. Identification was carried out by light microscopy and scanning electron microscopy. We identified 4 species: Alexandrum affine, A. catenella, A. fraterculus, and A. tamarense. Among them A.catenella, and A. tamarense were causative organisms of PSP

鎭海灣에 出現하는 有毒鞭毛操類의 分類 II 下痢性 貝毒種-Dinophysis屬

文成基,李三根 慶星大學校 1991 論文集 Vol.12 No.3

The classification of Dinophysis, responsible for DSP(diarrheic shellfish poison)was investigated during the period from 1984 to 1990 in Chinhae Bay. Identification was carried out by light microscopy and scanning electron microscopy. We identified 4 species: Dinophysis acuminata, Dinophysis caudata, Dinophysis fortii, and Dinophysis rotundata, Among those Dinophysis acuminata and Dinophysis fortii were discovered as causative orgnisms of DSP

연구논문 : 적조생물 Cochlodinium Polykrikoides에 대한 유류 및 유처리제의 영향

이삼근 ( Sam Geun Lee ),조은섭 ( Eun Seob Cho ),임월애 ( WoI Ae Lim ),이영식 ( Young Sik Lee ) 한국환경과학회 2007 한국환경과학회지 Vol.16 No.7

사인으로부터 추출한 정유와 용매 추출물의 휘발성 물질 및 금속성분 분석

이삼근(Sam-Keun Lee),음철헌(Chul Hun Eum),손창규(Chang-Gue Son) 한국분석과학회 2015 분석과학 Vol.28 No.6

Phylogenetic position of five Korean strains of Alexandrium tamarense(Dinophyceae), based on internal transcribed spacers ITS1 and ITS2 including nuclear-encoded 5.85 rRNA gene sequences

조은섭,이삼근,김익수,Cho, Eun-Seob,Lee, Sam-Geun,Kim, Ik-Soo Korean Society of Life Science 2002 생명과학회지 Vol.12 No.6

알렉산드륨 적조생물의 리보소옴 알엔에이 유전자의 ITS1, 2 및 5.8S부위를 대상으로 종간 혹은 종내의 유전적 다양도를 조사하기 위하여 지리적으로 격리된 33 스트레인 유전자의 염기서열를 비교했다. 진해만에서 분리된 AT-2, AT-6, AT-10, AT-A, AT-B 5클론은 일본종 OFX151-A과 동일한 유전자임을 발견했다. ITS부위에서 가장 짧은 종은 A. margalefi로 481 bp이며 가장 긴 종은 A. affine으로 528 bp로 나타났다. ITS1과 ITS2 염기서열에 대한 상호관계는 역으로 나타낸 반면에, G+C 함량에 대한 상호관계는 플러스로 나타났다. 유전적 변이율은 0.3% (1 bp)에서 53% (305 bp)였다. A. tamarense과 가장 적게 유전적 변이율을 보인 종은 A. fundyense(1.2-2.3% = 6-12 bp)인 반면에, A. catenella와는 큰 변이율 (19.8% = 102 bp)을 보였고, A. catenella와 A. fundyense은 19.7% 상이하였다. 알렉산드륨 적조생물의 bootstrap은 약하게 지지되는 데도 불구하고, A. catenella 분리종은 독립적인 그룹으로 형성하여 상호간에는 강력한 bootstrap 값은 PAUP과 NJ 분석에서 보였다. A. cohorticula와 A. frateculus 적조생물은 항상 sub-group 내에서 높은 bootstrap을 가졌다. 결론적으로 ITS부위의 염기서열 분석은 알렉산드륨 적조생물의 집단내 혹은 집단간의 계통분류을 밝히는데 유용한 것으로 보였다. In order to measure the inter- and intraspecific genetic divergences within the genus Alexandrium, the variations within the internal transcribed spacer (ITS1 and ITS2) regions and 5.85 ribosomal RNA gene of eight Alexandrium species were examined for 33 strains from diverse geographical locations by direct sequencing. Five isolates of A. tamarense (AT-2, AT-6, AT-10, AT-A and AT-B) from Jinhae Bay, Korea were found to be completely identical to a Japanese strain OFX151-A. The length of the amplified ITSI-5.85-ITS2 region varied from 481 nucleotides (in A. margalefi) to 528 nucleotides (in A. affine CU1-1). ITS1 and ITS2 nucleotide lengths were negatively correlated, whereas a positive correlation was found between their G+C content. The degree of sequence divergence ranged from 0.3% (1 bp) to a maximum of 53% (305 Up). Pairwise sequence comparisons revealed a small degree of divergence between A. tamarense and A. Pundyense isolates (1.2 - 2.3% = 6-12 bp), but a high degree of divergence between A. tamarense and A. catenella (19.8% = 102 bp), and between A. catenella and A. Pundyense (19.7%). Although most nodes were weakly supported by bootstrap values, some types tend to form independent molecular groups. A. catenella isolates also formed an independent molecular sub-group, with relaticula strong bootstrap values (94% or 85% and 79% or 98%, respectively in PAUP and NJ trees). Interestingly, A. cohorticula and A. frateculus always clustered within the same sub-group, this result being supported by strong bootstrap values. Our results indicate that the ITS regions provide useful informations on hierarchical population genetic structure and a high phylogenetic resolution in intraspecific and interspecific Alexandrium population.

光州直轄市 肥滿兒童의 實態와 對策

김응식,이삼근,이범장 조선대학교 스포츠과학연구소 1991 스포츠科學硏究 Vol.4 No.-

Excess weight seems to be one of the worst pathological phenomena and is expected to influence the lives and health of the next generations in our society. The problematic excess weight of children should be recognized to the fullest and examined exactly for its effective cure and prevention at an early stage. This study which was carried out on 1096 obesity children out of 5918 elementary school pupils in kwang ju aims to solve childres excess weight problem. The results are as follows : 1. The economic level of obesity children is not so hight, judging from their fathers, occupations. A high rate of obesity children are from families in which the children’s fathers are salaried men such as public servants and company employes and their mothers are housewives. 2. Heredity is not shown to be an absolute factor, fo their parents, physical stature and characteristic dose not have much to do with children's weight. Universality isshown in obesity children's time to go to Sleep and their amount of sleep. 3. Fifty percent of them are positiv playing and to play, but in reality do not play regularly. The activites in which they participate are shown to be very simple and there is likely to be little effct a guide. The reason for this is consideres to be due to lack of playing facili-ties and not such a good residential environment. 4. Physiscal education class in schools are shown to be intersting to 56 percent of them. Among the big reasons for reasons for their not being intersting are that it is strennuous and the content is uniteresting. This means that there are some problem in the operation of classes. 55.9 percent of male pupils and 64.3 percent of female ones are shown to go to private institues to study rather to go to gyms after school. 5. There is not shown to be particular chactisties in kind of food because they like almost every kind of food. It is shown that their food is high-caloried and that they eat plenty of meat and that like between-meal snacks. And they eat most between meals. 6. Fifty-there percent of overweight children are shown to have a nickname related to their wright and most common nicknames are "pig" and "pumpkin". But being overweight does not give the children mental stress. Being obesity is not shown to be of mush insonvenience in body movement but about 50 percent of the obesity children are shown to have at leat ince been made fun of or looked down upon in playing. 7. Eighty-three percent of them check their weight in pulic bathes and it is considered to positive. Parents and shown not to strongage children to take excerise, not to be worried about their being overweight, and not to resognize its possible ill effects when the children grow up. 8. Being obesity is shown to have little to do with the chilldren's academic achievment and personal character. The possibility of treating overweight children is that the are willing to undergo a considerable amount of physical exercise and good regulation.

Prorocentrum속에 관한 연구

문성기,이삼근,홍채규 한국환경과학회 1995 한국환경과학회지 Vol.4 No.2

Identified 7 species of the genus Prorocentrum which have been obtained from the southern coast area for 4 years from 1990 to 1994 can be summarized as followed. P.balticum is rare species, causing a red tide, and P.dentatum, P.micans, P.minimum, P.triestinum are cosmopolitan species often causing a red tide in the study area. P.gracile and P. lima are very rarely showed up, the former is recorded at first in domestic and later is benthic attached species which has diarrheic shellfish poison.