荳科植物 樹葉의 化學的成分

鄭大成,閔斗植,李學州 충북대학교 농업과학기술연구소 1988 農業科學硏究 Vol.6 No.1

This study was Conducted to obtain some fundamental information on the chemical components of leguminous foliage comprising carbohydrates, lignin, extractives, composition of essential elements, pH and protein. Test materials used in this study were the foliage of seven leguminous species. (see, Table 1) Chemical analyses, of organic and inorganic components were performed by TAPPI standard and A.O.A.C. methods. 1.The extractive contents, carbohydrates and lignin of foliage are that the cold water extractives are from 17.7 to 25.37, hot water from 21.2 to 29.7%, 1% NaOH from 41.7 to 65.8%, alcohol : benzen from 6.4 to 12.4%, holocellulose contents from 37.1 to 57.7%, pentosan from 13.6 to 18.8% and lignin from 25.4 to 41.6%. 2.The essential elements of foliage are that the crude carbon contents are from 28.8 to 47.5%, N. from 1.05 to 2.79%, Ca. from 0.56 to 1.47%, Mg. from 0.22 to 0.37%, K. from 1.08 to 4.76%, P. from 0.18 to 0.38%, Cl. from 0.04 to 0.39%, Si. from 0.40 to 2.08% and ash from 4.92 to 8.17%. 3.pH values of the leguminous foliage from 5.19 to 6.82. And crude protein contents are from 10.6 to 18.8% of it.

원발성 유방암에서 Sodium Iodide Symporter의 발현과 ^(99m)Tc-MIBI 유방스캔의 관계

석주원,김성장,곽희숙,이창훈,김인주,김용기,배영태,김동수 대한핵의학회 2002 핵의학 분자영상 Vol.36 No.6

목적: hNIS는 갑상선 조직 외에 다른 조직들에서도 발현된다고 알려져 있다. 유방암 세포는 그런 조직들 중에 하나이며, 그에 의한 유방암의 방사성옥소치료의 가능성이 제시되고 있다. 본 연구에서는 유방암 조직에서 hNIS의 발현정도를 알아보고, ^99mTc-MIBI 유방스캔과 hNIS의 발현 정도와의 관계를 조사하여 보았다. 대상 및 방법: 본 연구에서는 유방암으로 수술을 시행했던 56명의 환자를 대상으로 하였다. hNIS의 발현은 면역조직화학염색에 의해서 평가되었으며, 그 결과를 ^99mTc-MIBI 유방스캔의 판정 결과와 비교하였다. 결과: 전체 56명의 환자에서 hNIS의 발현율은 41.1%였다. 병리학적 진단에 의해 침윤성관상피암종이었던 49명에서의 발현율은 42.9%, 관상피내암종이었던 7명에서의 발현율은 28.6%였다. ^99mTc-MIBI 유방스캔에서 국소섭취 소견이 관찰되었던 41명에서의 hNIS의 발현율은 31.7%였다. 비정상적인 섭취 소견이 관찰되지 않았던 15명의 환자에서의 hNIS의 발현율이 의미있게 높게 관찰되었다(66.7%, p>0.05). 결론: 유방암 환자에서의 hNIS의 발현율은 그다지 높지 않았다. ^99mTc-MIBI 유방스캔에서 섭취증가 소견이 없을 때 hNIS의 발현율이 더 높았다. Purpose: Human Na^+/I- symporter (hNIS) is known to be expressed in many tissues other than thyroid gland. The breast cancer cells are one of them and the possibility of radioiodine therapy in treatment of the breast cancer may be suggested. We investigated the expression rate of hNIS and the relationship between the expression of hNIS and the finding of 99mTc-MIBI scintimammography in the breast cancer. Materials and Methods: Surgically proved 56 patients with breast cancer were the subjects of this study. The expression of hNIS were evaluated by immunohistochemistry and the results were compared to the findings of 99mTc-MIBI scintimammography. Results: Overall expression rate of hNIS was 41.1% in 56 patients. According to the pathologic diagnosis, it was 42.9% in 49 patients with invasive ductal carcinoma and 28.6% in the 7 patients with ductal carcinoma in situ. The expression rate of hNIS in the 41 cases with a focal increased uptake at he breast lesion on 99mTc-MIBI scintimammogram was 31.7%. That in the 15 cases without any abnormal uptake on the scan was significantly higher(66.7%, p<0.05). Conclusion: The expression rate of hNIS in the patients with breast cancer was not so high. The rate was higher in the patients with no increased uptake at the breast lesion on 99mTc-MIBI scintimammography. (Korean J Nucl Med 2002;36;325-32)

도재수복물의 표면 첨색시 온도에 따른 색조안정성과 표면조도의 평가

백은주,배태성,송광엽,박찬운 全北大學校 齒醫學硏究所 1991 전북치대논문집 Vol.9 No.1

The effects of oven firing on the color stability and surface texture of extrinsic stains used characterization and color modification of metal ceramic restoration were studied by comparing different temperatures and techniques. They were autoglaze technique, applied glaze technique, two step low-fusing glaze technique and one step low-fusing glaze technique. Autoglaze technique and applied galze technique were air-fired to manufacturer's recommended temperature. Two step low-fusing glaze technique is seperated staining and overglazing. Thin slurry of stain powder were air-fired to 1500℉. Overglaze powder was than mixed with stain medium and air-fired to 170℉. One step low-fusing glaze technique in combined staining and overglazing. Thin slurry of stain and glaze powder were air-fired to 170℉. The obtained results were as follows : 1. Slightly significant color differences by colorimeter were found between different stain application and fusion techniques(P<0.05). 2. Two step low-fusing glaze method showed the most rough surface, especially ceramco orange stain(P<0.05). 3. Surface roughness increased gradually in order of autoglaze, applied glaze, one step low-fusing glaze but they were not significantly different(P<0.05). 4. When two step low-fusing glaze was applied, both color measurement and surface texture were significantly different from other groups(P<0.05).

이온교환법에 의한 고분자전해질형 연료전지용 전극의 제조와 특성 고찰

이주성,박수길,오태영,이홍기,심중표 한양대학교 에너지.환경기술연구소 1995 에너지·環境技術論文集 Vol.2 No.-

고분자전해질형 연료전지용 전극의 백금 이용률을 높이기 위해 촉매제조시 이온교환법을 이용하여 백금을 carbon에 담지하고 이에 따른 전지성능변화를 고찰하였다. 전극제조시 Nafion이 첨가되지 않은 경우 이온교환양이 증가함에 따라 전기화학적인 활성이 증가하여 전지성능이 증가하였다. 전극제조시 Nafion이 첨가된 경우, Nafion첨가량이 증가함에 따라 전지성능은 증가하였는 데 Nafin첨가에 의해 이온교환되지 않은 백금이 전기화학적인 활성을 가지게 되어 전지성능은 증가하였다. To improve platinum utilization of PEMFC(Proton exchange membrane fuel cell) electrode, in preparing catalytic powder, platinum was impregnated on carbon by ion exchange method and its cell performance was investigated. When electrode was prepared without adding Nafion solution, as Nafion pre-impregnated amount was increased, electrochemically active area and cell performance was increased. When electrode was prepared with Nafion solution, increase of adding Nafion amount was improvement of cell performance. By adding Nafion at preparation of electrode, non ion-exchange platinum was shown electrochemical activity, cell performance was improved.

도재표면 처리제가 복합레진과 도재와의 결합에 미치는 영향

백명주,박주미,배태성,박찬운 全北大學校 齒醫學硏究所 1991 전북치대논문집 Vol.9 No.1

This study investigated the effect of porcelain primer on bonding of composite resin to porcelain surface. In order to test the bond strength between porcelain and composite resin, porcelain cylinders were embedded in acrylic resin, and polished with 240grit silicone carbide paper. The specimens were divided into twelve groups. All specimens were treated with three porcelain primers and bonded with five composite resins. All test groups were stored in 37℃ distilled water for 48hours. Shear bond strengths were measured with Instron(Model 4201) at a cross-head speed of 1㎜/min. The obtained results were as follows : 1. Scotchprime/SiluxⅡ group and BISCO Porcelain Primer/Bisfill group showed significant higher bond strengths than Clearfil Porcelain Primer/Photo clearfil Bright group(p<0.05). And there was no significant differences in bond strengths between Scotchprime/SiluxⅡ group and BISCO Primer/Bisfill group(p>0.05). 2. When composite resins were used with Scotchprime, the bond strengths were decresed SiluxⅡ(16.68±3.35 MPa), Bisfil(16.23±4.54 MPa), Poly-Fill(14.74±4.08 MPa), Photo Clearfil Bright(13.75±2.89 MPa) and Pekalux(14.74±4.08 MPa) in order, but there was no statistical significance(p>0.05). 3. When composite resins were used with BISCO Porcelain Primer, the bond strength were decreased Bisfil(16.17±1.60 MPa), SiluxⅡ(12.13±2.37 MPa), Poly-Fill(10.78±1.99 MPa), Photo Clearfil Bright(9.91±4.59 MPa) and Pekalux(7.36±2.16 MPa) in order, but there was no statistical significance(p>0.05). 4. SiluxⅡ, Photo Clearfil Bright and Poly-Fill used with Scotchprime showed significant higher bond strengths than BISCO Porcelain Primer(p<0.05).

한국어판 예일 틱 증상 평가척도 : 신뢰도 및 타당도 연구

정선주,이정섭,유태익,구영진,전성일,김봉석,홍강의 大韓神經精神醫學會 1998 신경정신의학 Vol.37 No.5

목 적 : 틱 증상의 심한 정도를 평가하기 위한 도구인 예일 틱 증상 평가척도(Yale Global Tic Severity Scale)를 한국판 가정 평가용 설문지 및 임상 평가용 척도로 개발하기 위하여 본 연구를 시행하였다. 방 법 : 예일 틱 증상 평가척도는 뚜렛 장애 및 기타 틱 장애에서 나타나는 운동틱과 음성틱 각각의 증상의 수, 빈도, 심한 정도, 복합성, 방해 정도 및 장해도를 포괄적으로 평가하도록 고안되어져 있다. 틱 증상을 주소로 정신과외래를 방문한 만 4.3세에서 19세까지의 100명의 환아 및 부모들을 대상으로 한국어로 번역한 예일 틱 증상 평가척도의 가정평가용 설문지를 평가전에 완료하도록 한 후, 면담을 통한 임상평가용 척도를 실시하였으며 수렴타당도 및 변별타당도의 검증을 위해 총괄적인 임상 인상척도-뚜렛 증후군, 강박장애, 주의력결립/과잉운동장애(Clinical Global Impression-TS, OCD, ADHD)를 시행하였다. 결 과 : 자료분석결과 내적일치도, 수렴타당도, 변별타당도 및 검사자간 신뢰도 모두 매우 높게 나타났으며 요인분석상 전 항목척도와 장해도는 운동틱과 음성틱에 해당하는 2개의 요인으로 묶여졌다. 결 론 : 본 연구결과 한국판 예일 틱 증상 평가척도의 높은 타당도 및 신뢰도가 입증되었으며 이는 향후 틱 증상의 객관적인 평가 및 정량화를 위해 유용하게 사용되어질 수 있을 것이다. Objectives : This study was carried out to develop the Korean form of Yale Global Tic Severity Scale(YGTSS)-family & clinical rating version. The severity of motor and phonic tics was rated according to five separate dimensions : number, frequency, intensity, complexity, and interference. Methods : The Korean form of YGTSS was applied to 100 children who visited psychiatric outpatient clinic with chief complaints of tic symptom. Together with YGTSS, Clinical Global Impression for Tourette's syndrome(CGI-TS), Obsessive-Compulsive disorder(CGI-OCD), Attention-Deficit/Hyperactivity Disorder(CGI-ADHD) were administered to all subjects for examining convergent and discriminant validities. Results : We could confirm high internal consistency, convergent and discriminant validities and interrater reliability of YGTSS by analysing data from 100 children with tic disorder. In factor analysis, items were clustered to 2 factors which were identical to motor and phonic tic subscales. Conclusion : The results of this study indicate the Korean form of YGSS is a reliable and valid rating scale for rating tic symptom severity. It can be used to evaluate tic symptom objectively and to quantify the tic severity in the studies for tic disorder.

축산 폐수의 효율적 처리를 위한 광합성 미세조류인 Spirulina platensis 배양 공정의 최적화

안주희,김성수,김태호,이준엽,오상집,이진하,이현용 한국미생물생명공학회 ( 구 한국산업미생물학회 ) 1996 한국미생물·생명공학회지 Vol.24 No.4

돈분 폐수의 효율적인 처리를 위해 6 W/㎡, 12 W/㎡와 24 W/㎡의 조도 하에서 온도를 15℃에서 40℃까지 각각 변화시켜, 광합성 미세 조류인 Spirulina platensis의 생육에 관한 최적 생육 조건 결정에 관한 실험을 하였다. 균체의 비생육속도는 30℃까지는 온도 증가에 따라 증가하였다. 균체의 생육에 있어서 온도의 영향을 설명하기 위해서 Arrhenius 식을 이용하여서 얻은 활성화 에너지 값은 13.5kal/mol이었다. 순수 배지에서 배양된 균체의 비생육속도가 0.31(1/day)인 반면 30% 돈분 첨가 배양시 얻은 균체의 비생육속도는 0.24(1/day)였다. 폐수내의 총 질소량과 이의 제거속도로 균체의 폐수 처리 능력을 평가할 수 있었다. 돈분 농도를 달리 첨가한 회분배양에 있어서 70~93%(PO_4^3- -P), 67~93%(inorganic nitrogen), 80~90% (COD) 그리고 37~56%(organic nitrogen)의 감소율을 보였다. 총-질소와 총-인의 1차반응 감소 속도 상수는 각각 0.17(1/day)와 0.14(1/day)로 계산되었다. 20% 돈분을 첨가하는 연속배양에 있어서 회석률이 0.20(1/day)일 때 최대 균체농도가 1.52(g/L)를 유지했다. 돈분처리 후 얻은 균체의 성분은 단백질이 58.7%, 지방 11.0% 그리고 회분이 15.6%였다. The kinetics of growing microalga, Spirulina platensis was investigated to treat swine wastes with optimum growth conditions. Temperature was varied from 15 to 40℃ at three different light intensities, 6 W/㎡, 12 W/㎡ and 24 W/㎡. The specific growth rate was increased as temperature increased up to 30℃. The activation energy was estimated as 13.5 kcal/mol by an Arrhenius relationship. 0.24(1/day) of specific growth rate was obtained from batch cultivation with 30% swine wastes, compared to 0.31 (1/day) from clean culture. It was found that Spirulina platensis was able to reduce 70~93% of PO_4^3- -P, 67~93% of inorganic nitrogen, 80~90% of COD and 37~56% organic nitrogen by adding various concentrations of swine wastes for 12 days of batch cultivation. Rate constants for removing nitrates and phosphates in treating swine wastes were estimated as 0.17 (1/day) and 0.14 (1/day) in the first order reaction, respectively. 1.52(g/L) of maximum cell density was maintained at 0.20(1/day) of dilution rate in continuous culture, adding 20% swine wastes for 30 days. The chemical composition of the biomass obtained from the process showed 58.7% of protein, 11.0% of lipid and 15.6% of ash.

SNMP 기능확장을 통한 Network 성능 향상에 관한 연구

유성진,김중태,조영주,정일용 조선대학교 전자정보통신연구소 2003 電子情報通信硏究所論文誌 Vol.6 No.1

On internet environment multimedia information containing voice and image is tramitted, which is tens times or hundreds times larger than oridnary information Analytic types for network management in this environment are consisted of a real time analysis, a basis analysis and an intensive analysis. An intensive analysis is to gather trend information on specific objects periodically, and to analyze this information in order to monitor network conditions When SNMP is applied to collect the trend information, it brings on an increase of network load, a delay of response time and a decrease of accuracy of data collection since an agent responds to each managers' polling. In this paper, an efficient SNMP is proposed and implemented to add time variables in the existing SNMP PDU It minimizes unnecessary traffic at an intensive analysis between manager and agent, and collects trend information accurately The results of experiments show that it has compatibility with the existing SNMP, decreases an amount of network traffic greatly and increases the accuracy of data collection.

흡연에 의한 급성 호산구성 폐렴 2예

박종빈,김학렬,주현준,유태양,신성남,신정현,송정섭,황기은,김소영,양세훈,정은택 圓光大學校 醫科學硏究所 2008 圓光醫科學 Vol.23 No.2

최근 흡연을 시작한 젊은 성언에서 급성 호산구성 폐렴의 발생에 대한 증례가 보고되고 있다. 급성 호산구성 폐렴은 대개 발열을 동반하기 때문에 초기에는 감염성 폐렴으로 잘못 진단, 치료되는 경우가 많다. 아직 정확한 병태 생리 및 조직학적 소견은 밝혀져 있지 않지만 병력 청취 및 임상 양상, 방사선 소견의 관찰을 통해 급성 호산구성 폐렴을 의심하고, 진단을 위해 기관지 폐포 세척액 검사를 시행한다면 좀 더 쉽게 진단 내릴 수 있을 것이다. 본 저자들은 최근 처음 시작한 흡연에 의해 발생한 급성 호산구성 폐렴을 진단하고, 스테로이드를 투여하여 성공적으로 치료한 환자 2예를 경험하였기에 이를 문헌 고찰과 함께 보고하는 바이다. Acute eosinophilic pneumonia(AEP) is characterized by acute febrile respiratory illness associated with diffuse pulmonary infiltration and pulmonary eosinophilia. The specific etiology for acute eosinophilic pneumonia is elusive. By some investigators, cigarette smoking is suggested as a causative substance which can cause AEP. In recent, the authors experienced two cases of AEP following cigarette smoking. Both cases had characteristic features including age around 20 years, new onset smoking before occurance of AEP, diffuse infiltration on chest radiography, pulmonary eosinophilia based on bronchoalveolar lavage and acute improvement after steroid therapy. These clinical features are resemble with previous smoking induced AEP case reports. Base on these clinical features, cigarette smoking associated AEP could be diagnosed more easily.

12주간의 운동프로그램이 노인의 근력과 근지구력에 미치는 영향

최종환,김종성,조경욱,김태완,김현주 충북대학교 평생체육연구소 2000 平生體育硏究所 論文集 Vol.12 No.-

The purpose of this study was to determine the effect of 12-week exercise program on isokinetic muscular strength and endurance in the elderly women(n=32, age=66.78±4.01). They were tested on their muscular strength and endurance at the beginning and at the end of the 12-weeks study(pre-post tests). Muscle strength was evaluated by peak torque of the knee extensor and flexors at 60 deg/sec(5 repetitions) and Endurance was assessed by total work of the knee extensor and flexors at 120 deg/sec(15 repetions) using isokinetic exercise machine(Biodex system II, U.S.A.). For data analysis, Mean and Standard Deviation scores were calculated, and paird t-test was used. This study resulted in as follow; First, after 12-week exercise program, muscular strength of right and left knee flexors was significantly improved. Second, after 12-week exercise program, endurance of right and left knew flexors was significantly improved. In conclusion, regular exercise delays decline of muscular strength and endurance or improves muscular strength and endurance in elerly. It will have an effect on essential life of elderly, improve quality of life.