일부 종합검진 수검자에서 비만도 및 혈중 지질이 혈압에 미치는 영향

임대식,함정오,김화성,이성수 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.3

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고사리잎 추출액을 이용한 견직물 염색성

정진순,설정화,장정대 한국의류학회 2003 한국의류학회지 Vol.27 No.3,4

In this study, the characteristics of catechol tannin and pyrogallol tannin contained in Pteridium aquilinum were analysed by IR spectrum. Silk fabrics were dyed with Pteridium aquilinum extracts using various mordants, and their dyeing properties were discussed. Additionally the fastness to the water digestion, perspiration liquid digestion and light irradiation were investigated. IR spectrum of catechol tannin showed bands of O-H at 2417㎝^(-1), C-H at 2930㎝^(-1), C-O at 1722^(-1), C=C at 1644㎝^(-1), CH₂ at 1402㎝^(-1). And IR spectrum of pyrogallol tannin showed bands of O-H at 3409㎝^(-1), C-H at 3003㎝^(-1) and 2933㎝^(-1), C=O at 1701㎝^(-1), C=C at 1582㎝^(-1), CH₂ at 1401㎝^(-1), CO at carboxylic acid and carboxylic acid ester at 1287㎝^(-1) and 1135㎝^(-1). The maximum absorption wavelength of the extracts appeared at 270.0nm and 311.5nm. The optimum conditions for dyeing silk fabric with Pteridium aquilinum extracts were 80℃, 60min. Surface color of the silk fabric dyed with Pteridium aquilinum extracts was 2.7Y. Surface color of the pre-mordanted fabrics with Al, Cu and Fe were 4.3Y, 2.5Y and 4.7Y, respectively. And Surface color of the post-mordanted fabrics with Al, Cu and Fe were 3.7Y, 2.8Y and 0.2GY. The water fastness and the alkaline perspiration fastness were improved in the Al-mordanted silk fabrics. By acidic and alkaline perspiration treatment, △E of the unmordanted fabrics was lower than that of pre-and post-mordanted fabrics. Also after 40hour irradiation, △E of the unmordanted fabrics was lower than that of pre-and post-mordanted fabrics.

가변블록과 DCT 분류기를 사용한 CVQ에 관한 연구

정일화,이대영 慶熙大學校 大學院 1994 高凰論集 Vol.15 No.-

The proposed CVQ method is based on a classification technique in the discrete cosine transform(DCT) domain. In this scheme, Less complex regions are segmented into variable sized blocks(4×4, 8×8) and high-detail regions are segmented into 4×4 blocks of various edge classes. And Quad-Tree(QT) method is used for block data transmition.

건톳 제조에 관한 연구

정창화,오창경,송대진,김수현,오명철 濟州大學校工科大學産業技術硏究所 1999 尖端技術硏究所論文集 Vol.10 No.1

고품질의 건톳제품을 제조할 목적으로 블랜칭 처리조건, 염도, 색도, 톳의 건조조건 등을 연구하였다. 생톳의 최적 블랜칭 조건은 열탕에서 5초간 처리하였고 이때의 염도는 1.8(NaCl%)로 68%의 염분 제거율을 보였다. 건톳 제조의 최적 건조조건은 열풍건조기로 60 에서 2시간 건조시켰을 때이다. 건톳제품의 수분함량은 10%로 조절하였고 색도는 a(-2.61), b(3.58)이었다. For process dried Hizikia fusiforme product of excellent quality, condition of blanching treatment, salinity, color, and dry condition were investigated. The optimum blanching condition of fresh Hizikia fusiforme was 5 seconds at boiling water. Salinity was 1.8(NaCl%), and effect of salinity elimination was 68%. The optimum drying condition was 2 hours at 60℃ in hot-air drying oven. Moisture content of dried Hijizia fusiforme product was control to 10%, Color was a(-2.61), b(3.58).

鉛暴露 作業者의 鉛中毒 早期發見을 위한 集團檢診法 改善方案에 관한 硏究

홍대용,김장락,정주화,최현림,윤형렬 慶尙大學校 1995 論文集 Vol.34 No.1

This study was carried out to evaluate the feasibility of current lead indicators used in screening lead who were sspeted to have been exposed to lead were selected as 'case'and 207 female workers from non-lead industry were selected for 'control'. The results obtained were as follows: 1. The mean values of blood lead for case and control were 31.4㎍/dl, 22.2㎍/dl,respectively. The difference observed in the mean concentration between case and control was statistically signifi-ant(P<0.01) 2. The mean values for blood ZPP by hematofluorometer for case and control were 31.3㎍/dl, 25.4㎍/dl,respectiely. And difference between two groups was statistically significant(P<0.01). 3. No statistically significant correlation was found between working duation and blood lead, blood ZPPlovel. 4. According to the simple correlation analysis,ZPPand urine lead were found to be statistically correlated with blood lead(P<0.01) 5. According to the discriminant analysis using blood lead as a dependent variable, it showed 89.1% predictability when using 40㎍/dl as a cutting value which is used as a screenig cutting value for industry workers health examination, while 81.8% for 30㎍/dl,77.54% for 20㎍/dl, respectively. 6. Lead related simptons which is used for screening the lead ntoxicated patients were used as a dependent variables in multiple regression analysis to find useful lead indicator. And significant independent variables were found to be ZPP, Age, and Hct. 7. Above results suggest that objective evalution of feasibbility of several lead indicators should be developed to correct the disutility of current lead screeng system in Korea.

장기투석을 받은 만성 신부전 환자에서 발생한 종양에 관한 고찰

황정화,이혜경,홍현숙,박재성,김대호,권귀향,최득린,황승덕,이희발 순천향의학연구소 1996 Journal of Soonchunhyang Medical Science Vol.2 No.2

The authors tried to evaluate tumor occurrence in long-term dialysis patients with chronic renal failure. Among 359 patients, 20 patients (about 5.6%) were diagnosed with malignancy during long-term dialysis from the period of 1983 to 1995 at our nephrology department. The ultrasonographic and computed tomographic findings including the clinical features of 20 patients that were retrospectively reviewed. The mean age of the patients was 53 (37-75)years old and the ratio of male to female was 9:1. Among the 20 cases, 7 cases of hepatoma (35%) were developed. Among them, urinary tract tumors such as renal and bladder cancer were developed in 4 (20%) and 2 (10%) of the cases. Other malignant tumors were lymphoma, stomach cancer, uterine cervical cancer, cholangiocarcinoma, lung cancer, meningioma, and acoustic neuroma one case of each (each of 5.3%). The most common tumor in patients with chronic renal failure, who were receiving long-term dialysis, was hepatoma and the second most common tumor was cancer of the urinary tract such as kidney and bladder.

건강인에서 결핵균 30-kDa항원이 말초혈액 임파구증식에 미치는 영향

최대경,고석신,김화중,조은경,백태현,신철식 충남대학교 의과대학 지역사회의학연구소 1991 충남의대잡지 Vol.18 No.1

T lymphocytes are thought to play a central role in cell mediated immune response. To Study the T lymphocyte proliferative response to 30-kDa antigen purified from Mycobacterium tuberculosis H37Rv, peripheral blood lymphocytes isolated from healthy subjects were stimulated with the 30kDa antigen, crude antigen or PHA. Healthy subjects were divided into three groups so that PPD(+), PPD(±) and PPD(-). The proliferations of lymphocytes were measured by the incroporation of ^3H-thyrnidine. The results were summarized as follows: 1. For the PPD(+) person, at concentration of < 1 ㎍/ml, the proliferative response to 30-kDa antigen resulted in a mild reduction but crude antigen showed relatively rapid reduction. For the PPD(-) person, decreasing the concentration of the both antigens showed rapid reduction of proliferation 2. The lymphocytes proliferations to 30-kDa antigen and crude antigen were significantly increased in PPD(+) group when compared to those in PPD(-) group, but PHA response was no significant difference. 3. The sensitivity and specificity of lymphocyte proliferation assay to 30-kDa antigen and crude antigen when compared with skin test results were 92.3%, 100% and 76.9%, 50%, respectively.

일부 종합검진 수검자에 비만도 및 혈중 지질이 혈압에 미치는 영향

임대식,함정오'김화성'이성수 순천향대학교 교수학습개발센터 2004 Journal of Soonchunhyang Medical Science Vol.10 No.3

This study was conducted to evaluate blood pressure associated with body mass index and blood lipids. Study subjects were 3,076 persons (1,623 males and 1,453 females) who visited to General Health Screening Center located in Chonan. Data were collected from 2001 to 2003. Height, weight and blood pressure were measured by a trained nurse. The level of total cholesterol, HDL cholesterol, triglyceride, and fasting blood sugar were selected as biometric test variables. Statistical analysis, such as t-test, simple correlation, and stepwise multiple regression were performed using SAS package program. The mean (standar deviation) of age, BMI, systolic blood pressure, diastolic blood pressure, fasting blood sugar, triglyceride, total cholesterol, HDL cholesterol, and LDL cholesterol in study subjects were 48.4 ±11.8 years, 23,7 ± 3.2 kg/m^(2), 124.6 ± 16.3 mmHg, 80.9 ± 10.7 mmHg, 97.6 ± 24.9 mg/㎗, 154.4 ± 105.6 mg/㎗, 203.2 ± 39.2 mg/㎗, 51.0 ± 12.8 mg/㎗, and 121.8 ± 35.6 mg/㎗, respectively. In multiple regression analysis of BMI and blood lipids on systolic blood pressure after controlling for confounders (age, sex, and fasting blood sugar), BMI, HDL cholesterol, and triglyceride were found to be significant positive independent predictors of systolic blood pressure. In multiple regression analysis of BMI and blood lipids on systolic blood pressure after controlling for confounders (age, sex, and fasting blood sugar), BMI, triglyceride, HDL cholesterol, and LDL cholesterol were found to be significant positive independent predictors fo systolic blood pressure. With above results, it was found that BMI and blood lipids were significantly associated with blood pressure.

초음파 주파수와 음향밀도에 따른 하수슬러지 전처리 특성

김대용,정연화,김한석,정진희,성낙창 東亞大學校 建設技術硏究所 2008 硏究論文集 Vol.31 No.2

The objective of this study was to investigated the pretreatment characteristics of sewage sludge by ultrasonic process. Excess sewage sludge was sampled from N sewage treatment plant (STP) in B city. The ultrasonic processor was designed to operate with 28 kHz and 40 kHz,independently. During sonication experiment, sludge samples were stirred by agitator. The acoustic densities were changed 33 to 139 W/L by control of current strength. The sonication time was in the range of 10 min and 40 min. The total chemical oxygen demand (TCOD) and soluble chemical oxygen demand (SCOD) of sludge were analyzed with K2Cr207 Closed Reflux Method. The results showed that sonication with 28 kHz of acoustic frequency is better than sonication of 40 kHz in incensement of SCOD/TCOD ratio. Also, the sludge solubilization rates increased as the sonication time and acoustic density increased. The application of dual frequency sonication for sludge pretreatment can be interest for sewage treatment plants having problems in sludge treatment and disposal.

지식베이스를 이용한 영역이해에 관한 연구

金栢起,鄭日和,崔寅浩,李大寧 慶熙大學校 1994 論文集 Vol.23 No.-

본 논문은 지식베이스를 이용한 영역이해에 관한 것으로 영역지식원과 제어지식원을 분리, 영역 지식원을 특징량에 따라 계층적으로 모델링하여 시스템을 구현함으로써 화상의 이해율 및 지식원의 정합율을 향상시키고 검증처리속도를 개선하였으며 전문적인 경험적 지식의 집적화와 갱신이 가능하도록 하였다. In this paper, we present a region understanding method using knowledge base. we splited domain knowledge sources and control knowledge sources and implimented image understanding system modeled on domain knowledge sources hiearchically according to minutia. The purposes of this paper are to improve the understanding rate for images and the matching rate of knowledge sources and to advance the processing times for verification. Therefore, it is possible to integrate and renovate the technical heuristic-knowledge.