김치유래 젖산균의 균체지방산 분석을 이용한 분류학적 연구

이정숙,정민철,김우식,이근철,김홍중,박찬선,이헌주,주윤정,이근종,안종석,박완,박용하,민태익 한국미생물생명공학회 ( 구 한국산업미생물학회 ) 1996 한국미생물·생명공학회지 Vol.24 No.2

표준균주를 포함한 230여개의 김치유래 젖산균에 대한 균체지방산(FAMEs)을 분석하였다. FAMEs profiles는 Euclidian Distance 17.5에 의해 7개의 Major Cluster와 1개의 Single Cluster로 나뉘어졌다. 이중 A, B, C 및 Cluster는 Leuconostoc속으로 분석되어졌고, F는 Lactobacillus속으로 분석되어졌다. 그리고 E와 G cluster는 두개의 Genus가 혼재되어 나타났으며 보충적인 연구가 필요하다. 앞으로 김치유래 젖산균의 균체지방산 분석결과를 기반으로 한 데이타베이스에 95가지 탄소원을 이용하는 수치분류학적 접근방법 및 Pyrolysis Mass Spectrometry 등의 화학적 분석 방법과 분자친화적 연구를 통한 종합적 분류정보 체계가 갖추어지면 젖산균의 신속, 정확한 동정 및 연구에 활발히 이용되어질 것이다. Two hundreds and thirty lactic acid bacteria, mostly isolated from Kimchi, including type strains were sued for analysis of cellular fatty acids. The 230 test strains were recoverd in 7 major and 1 single clusters defined a Euclidian distance of 17.5. These aggregate taxa were equivalent to the genus Leuconostoc (aggregate group A, B, C and D), and the genera Leuconostoc and Lactobacillus (aggregate group G). It is concluded as evident that FAMEs (Fatty Acid Methyl Esters) profile of cell can be used as a criterion in classification of lactic acid bacterial from kimchi. Additional comparative taxonomic studies need to be carried out on well chosen representative strains to determine the most appropriate methods of value.

소각잔사 중의 클로로벤젠과 클로로페놀의 함량 및 이성체 분포특성

이우근,심영숙,김진범 江原大學校 附設 環境硏究所 1998 環境硏究 Vol.15 No.-

Chlorobenzens(CBs) and chlorophenols(CPs) in fly asha discharged from several municipal soild waste incinerators (MSWI) were investigated in terms of total content and isomer distribution. The content of CBs and CPs was highest in the fly ash from S incinerator, which were 1040.7ngCB/g-fly ash and 1156.4ngCP/g-fly ash. According to the experimental results, while all samples contained a large amount of the higher chlorinated CBs the amount of lower chlorinated CPs varied with season It was found that the isomer distribution of CBs and CPs was almost constant regardless of season. The quantities of CBs and CPs depended closely on the chemical composition of MSW, while the isomer distribution of CBs and CPs was contant throughout all the year round.

Honeycomb 觸媒에 의한 窒素酸化物과 2-CP의 同時除去에 관한 硏究

李宇根 江原大學校 附設 環境硏究所 1993 環境硏究 Vol.10 No.-

도시폐기물 소각로에서 배출되는 질소산화물과 Dioxin類를 동시에 제거하기 위해서 honeycomb型 觸媒를 이용하여 반응온도 200-400℃의 범위에서 질소산화물과 Dioxin類의 前?物質인 2-CP의 同時除去 실험을 수행하였다. 실험결과에 따르면 space velocity 6000 hr^(-1)과 NH₃/NO_(x)比 0.5에서 90%이상의 NO_(x)제거율이 얻어졌으며 space velocity 1200 hr^(-1)에 2-CP가 거의 완전히 분해됨을 알 수 있었다. 동시제거 실험에서는 공존물질에 의한 제거율의 저하는 없었고 2-CP의 경우 단독 제거보다 동시제거 실험에서의 제거율이 더 높음을 알 수 있었다. The removal of NO_(x) and 2-CP was investigated over the temperature range of 200-400℃ by using a honeycomb catalyst, for the purpose of finding the condition to decompose simultaneously NO_(x) and dioxin. The removal efficiency of NO_(x) was 90% at the space velocity of 6,000 hr^(-1) and NH₃/NO_(x) ratio of 0.5. And the removal efficiency of 2-DP was 99% at the space velocity of 1200 hr^(-1). There was no effect in the removal efficiency of NO_(x) and 2-CP by co-existing materials(NO_(x), NH₃, 2-CP etc.) at the simultaneous decomposition. The removal efficiency of 2-CP in the simultaneous decomposition was higher than in the only decomposition of 2-CP.

소각장별 비산재 중의 중금속 용출 특성 및 존재형태

이우근,김준수,김진범 江原大學校 附設 環境硏究所 1998 環境硏究 Vol.15 No.-

본 연구는 도시폐기물 소각시설에서 발생되는 비산재 중에 함유된 중금속으 존재형태 및 용출 툭성을 알아보기 위해 수행되었다. 용출 실험은 KSLT, TCLP, MALT법을 이용하였고 중금속의 존재형태별 분포에는 다음과 같이 5가지 형태로 구분하였다.; exchangeable, carbonate, reducible, organic, residual fraction.용출 심험 결과에 의하면 pH 4로 일정하게 유지한MALT법에 의한 중금속 용출량이 가장 높 This study was carried out to estimate the fractional composition and leaching properties of heavy metals in fly ash generated from three municipal solid waste incinerators(MSWI). Three leaching tests are used in this work. These are Korea Standard Leaching Test(KSLT)), Toxicity Characteristic Leaching Procedure (TCLP), Maximum Availability Leaching Test(MALT) method. The fractional composition of heavy metals is classified into five fractions; exchangeable, carbonate, reducible, organic, residual fraction. According to the leaching tests, it seems that the highest amounts of heavy metals are leached by MALT method in which pH of 4.0 maintains constantly. From the results of the fractional composition of heavy metals, above 45% of Cd is leached by the change of pH or/and concentrations at I and J incinerators. And 91% of Cd is extracted under the reducible environment at B incinerator. But Cu may be leached under the strong acidic environment. The amount of Cu at B incinerator is less leached than that of I and J incinerators due to high residual fraction. About 35% of Ni in fly ashes at three incinerators exists in reducible fraction. It is probably leached under the reducible environment. Pb may be leached under the weak acidic environment at I and J incinerators, but in case of S incinerator leached under the strong acidic environment.

비산재 중에 함유된 중금속의 용출특성에 관한 연구(1)

이우근,김진범,김은미 江原大學校 附設 環境硏究所 1997 環境硏究 Vol.14 No.-

The secondary environmental contamination is now feared by the land-fill treatment os fly ash from MSWI. It is urgently necessary to study the development of a proper technology for fly ash. considering the governmental plan for enhancing the rate of incineration. The leaching characteristics of MSWI ash were analyzed for pH, L/S ratio and leaching time in our study. According to the result, pH was decreased as the leaching time elapsed. The amounts of leached heavy metal were affected by L/S ratio. pH is the most important among the factors for affecting the amounts. Therefore, the leaching experiment must be excuted under the pseudo-actual condition(actual pH at the land-fill site)evaluating the risk.

체육교사의 정신지체학생 지도유형에 대한 하위구조의 신뢰성과 타당성 검증

이현수,이근모,손승우 釜山大學校 附設 體育科學硏究所 2005 體育科學硏究所 論文集 Vol.21 No.2

The purpose of this study was to reliability and validity of the substructure about physical education teachers teaching types to Students with Mental Retradation. The study used to 241 middle school students(male:118, female:123) as subjects for actual analysis with the purposive sampling, except insincere 11 samples......

시간 경과에 따른 부가중합형 실리콘 인상재의 수소 발생

이근우,김경남,고영무 大韓齒科器材學會 1995 대한치과재료학회지 Vol.22 No.1

Clinical reports have indicated that there occurs many bubbles on the surface of the gypsum model because of the hydrogen release from the addition silicone impression materials. Recently the products containing hydrogen absorber have been being developed but not perfect yet. In this study, 4 type Ⅲ dental stones(New fujirock ; G.C., New Plastone ; G.C., MG dental stone ; Maruishi, Suprastone ; Kerr) was poured into the impression of detail-reproducing test block taken using addition-type silicones (Correct VPS ; J/P, Exafine ; G.C., Express ; 3M, Extrude ; Kerr, Provil ; Bayer, Reprosil ; Dentsply) with the intervals of 0, 15, 30, 45, 60, 90 and 120 minutes. Gypsum model was removed from the impressions and the number of bubbles on the surface of casts was counted after 30 min. Ordinal numbers were given to the ranges of the number of bubbles like this, Score 0 ; 0, 1 ; 1∼10, 2 ; 11∼30, 3 ; 31∼60, 4 ; 61∼100, 5 ; 101∼200, 6 ; 201∼400, 7 ; 401 or more. There was no bubble in Correct VPS impression poured immediately in MG dental stone and Extrude impression poured immediately in New Fujirock, New Plastone, and MG dental stone. Significant bubbles were appeared in Provil until 15 minutes(Score 1∼3), Reprosil until 30 minutes(Score 1∼2), and Express until 45 minutes(Score 1∼2) in all gypsum models(p<0.05). Express impression poured in Suprastone(Score 2) and New Plastone(Score 4) had bubbles until 120 minutes(p<0.05). On the basis of this study it can be concluded that not only hydrogen release but also compatibility with gypsum should be considered when using addition silicones.

Earth Anchor의 인발저항력에 관한 연구

이유근,김우중,윤용철 진주산업대학교 1994 論文集 Vol.33 No.-

This paper describes the results of an experimental consideration on the uplift capacity of the earth anchor. The earth anchor used in pull-out test is the cylindrical steel with plate and eight earth pressure cells(No.1~No.8). The plate diameter is 120㎜ and embedment ratios(L/B; L=length of embedment, B=diameter) are 1, 2 or 3, Also, we investigated surface displacement of the test ground using two gap sensors. Pull-out test were conducted for dry sand of soil placed at a density of loose. From the results, the following conclusions were drawn ; Uplift capacity of anchor becomes larger due to the increase in the L/B. The earth pressure act upon the upside of the anchor plate is different in according to place of earth pressure cell and L/B. That is to say, the earth pressure of No.1 or No.2 (earth pressure cell) increases as time goes by until the anchor pull-out completely, but the earth pressure of No.3(L/B≤2) becomes smaller No.1 and No.2 after the rate of increase of the earth pressure decreased by boundary a point of time. The intersecting point of the ground(sand) surface and the end of shear bed is about 15㎝(L/B=1), 21㎝(L/B=2) or 27㎝(L/B=3) by distance from anchor center.

Holstein種의 血液化學値에 關한 硏究 : -Ⅰ. 成牝牛의 血液化學値- -Ⅰ. Blood Chemical Values of Adult Cows -

李載洪,林貞澤,韓邦根,金宇權 全南大學校 農漁村開發硏究所 1981 農業科學技術硏究 Vol.16 No.1

國內에서 飼育되고 있는 Holstein種成牝牛의 血液化學値를 얻고자 全南地域에서 飼育되고 있는 外觀上 健康하다고 認定된 經産牛 385頭를 對象으로 血液化學値를 調査檢討하여 다음과 같은 結論을 얻었다. 1. 平均血淸TP量은 7.35(5.10∼10.20)g/100㎖이었으며 年令의 增加에 따라서 漸漸 증가하는 傾向이 있었다. 2. 平均血淸Alb量은 3.51(2.50∼4.40)g/100㎖이었으며 年令別 差異는 認定할수 없었다. 3. 平均血淸Glb量은 3.84(1.40∼7.20)g/100㎖이었으며 年令의 增加에 따라서 漸漸 증가하는 傾向이 있었다. 4. 平均血淸 A/G比는 0.91(0.43∼2.64)이었으며 年令의 增加에 따라서 漸漸 증가하는 傾向이 있었다. 5. 平均血淸 cholesterol量은 179.38(46.4∼336.0)g/100㎖이었으며 年令의 增加에 따라 增加하여 4年牛를 頂点으로 다시 下向의 傾向을 나타내고 있었다. 6. 平均血淸 glucose量은 39.38(27.0∼57.3)㎎/100㎖로 낮았으며 年令別로 特徵的인 것은 發見할수 없었다. 7. 平均血淸 magnesium量은 2.72(0.20∼8.46)㎎/100㎖이었으며 老令牛에서 magnesium의 減少가 顯著하였다. 8. 平均血淸 calcium量은 8.69(6.34∼16.83)㎎/100㎖로 全般的으로 낮은 량이었으며 年令別 差異는 認定할수 없었다. 9. 平均血淸無機燐量은 5.88(3.50∼9.76)㎎/100㎖이었으며 年令別로 特徵的인 것은 發見할수 없었다. 10. 平均血淸Ca/P比는 1.48(0.68∼2.64)이었으며 年令別로 特徵的인 것은 發見할수 없었다. 11. 平均血淸 potassium量은 18.95(13.69∼24.24)㎎/100㎖이었으며 年令別 差異는 認定할수 없었다. 12. 平均血淸 sodium量은 315.90(282.86∼361.05)10.20)㎎/100㎖이었으며 年令別로 特徵的인 것은 發見할수 없었다. 13. 平均血淸 chloride量은 354.64(299.97∼361.05)㎎/100㎖이었으며 年令別 差異点은 發見할수 없었다. The present study was conducted to determine the blood chemical values of adult Holstein cows in Korea. Samples of blood were taken from 385 healthy cows in Chonnam province, and the results obtained are summarized as follows. 1. Mean serum totalprotein content was 7.35(5.10∼10.20)g/100㎖;it in creased with age. 2. Mean serum albumin content was 3.51(1.40∼4.40)g/100㎖;no differences were found between age groups in the serum albumin content. 3. Mean serum globulin content was 3.84(1.40∼7.20)g/100㎖; it increased with age. 4. Mean serum albumin/globulin ratio was 0.91(0.43∼2.64);it decreased with age. 5. Mean serum glucose concentration was 179.38(46.4∼336.0)g/100㎖;it increased up to 4 years of age and thereafter it decreased with age. 6. Mean serum glucose concentration was 39.38(27.0∼57.3)㎎/100㎖, which was low compared with other results. No differences were found in the glucose concentration between age groups. 7. Mean serum magnesium concentration was 2.72(0.20∼8.46)㎎/100㎖;it decreased significantly in older cows. 8. Mean serum calcium concentration was 8.69(6.34∼16.83)㎎/100㎖, which was low compared with other results. No differences were found in the calcium concentrati on between age groups. 9. Mean serum inorganic phosphate concentration was 5.88(3.50∼9.76)㎎/100㎖;no differences were found in the inorganic phosphate concentration between age groups. 10. Mean serum calcium/phosphate(Ca/P) ratio was 1.48(0.68∼2.64);no differences were found in the Ca/P ratio between age groups. 11. Mean serum potassium concentration was 18.95(13.69∼24.24)㎎/100㎖;no differences were found in the potassium concentration between age groups. 12. Mean serum sodium concentration was 315.90(282.86∼361.05)10.20)㎎/100㎖;no differences were found in the sodium concentration between age groups. 13. Mean serum chloride concentration was 354.64(299.97∼361.05)㎎/100㎖;no differences were found in the cholride concentration between age groups.

지문과 정신분열증

우숙희,정국동,최송표,조근자,양은진,김수일,박경란,이영호,김원식 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.1

Fingerprint patterns of 333 schizophreniacs who met with the diagnostic criterias of International Pilot Study of Schizophrenia except items associated with chronicity in exclusion criteria were studied, and the following results were obtained. 1. The frequency distribution of the fingerprint patterns in the 333 schizophreniacs was ulnar loop, whorl, twinned loop, arch, radial loop in order in both control and schizophrenia groups. 2. Finger ridge counts of both sexes were decreased significantly in schizophrenia group. 3. Dissociation of fingerprint pattern in the schizophrenia group was 51.1%, which was far greater than 6.25% of control group. Number of dissociation was greatest in the thumb, followed by index, middle, ring, and little finger in order. According to the above results, it is considered that both the number of finger ridges and degree of dissociation of fingerprint patterns were closely related with schizophrenia. Analysis of fingerprints and palmprints with the aid of chromosomal analysis would contribute the early diagnosis and prevention of schizophrenia.