자동차용 부품 제조회사의 생산관리용 전산시스템 개발

주운기,윤철호 선문대학교 중소기업기술지원연구소 2001 선문공대 연구/기술 논문집 Vol.6 No.1

자동차용 부품을 생산하는 중소기업체에서 회사내 업무 전산화를 위해 활용할 수 있는 전산시스템을 개발하였다. 자동차용 부품 생산은 주로 이산(discrete) 생산이고 주문(order) 생산품이 많으므로, 제품 및 부품에 대한 관리를 수작업으로 하기는 어렵다. 따라서, 전산시스템을 이용한 관리가 필요한데, 본 연구개발에서는 현재의 업무 처리 방식, 생산 환경, 전산망의 상황 등을 고려하여 기존 시스템의 문제점들을 해결하고 개선한 전산시스템을 개발하였다. The objective of the study is in development of a software for a small and medium company. Our software will be utilized to improve the planning and control process in discrete and order production environment. Most of companies have at least one software for the production planning and control. By the way, there exist few companies having a software of good fitness of the company. This study develops a new software to have good fitness for the company I by modifying and improving the existing one of the company.

분산 하드 실시간 시스템에서 태스크 스케줄링에 관한 연구

성낙운,김주현 慶星大學校 1993 論文集 Vol.14 No.4

In the design of distributed computer systems, the scheduling for tasks with deadlines is considered to be an important one. The performance metrics used to evaluate the task scheduling algorithms is the guarantee ratio defined as the ratio of the number of tasks which can be guaranteed to complete before their deadlines compared to the number of tasks which are invoked. This thesis design and evaluate a task scheduling algorithm which use duplicate table to improve the guarantee ratio.

수종 생약의 Hepatoma cell line에 미치는 형태적 변화의 동정

이은주,정용자 慶星大學校 1998 論文集 Vol.19 No.2

The cells included in medium were invastigated to be aggregated and destroyed slowly by treatment with Lactuca dentata Makino. var. flaviflora Makino. On the other hand, the cells treated with Equisetum arvense L were aggregated to be coat-like. The case of Capsicum annuum L. var. angulosum Mill, the cells became vague after 2 days and then destroyed. This procedure was faster than other. The chromasome was more condensated after 37hr treated with Capsicum annuum L. var. angulosum Mill.

C_(1)-HVOCs 제거를 위한 Ru-Sn/γ-Al_(2)O_(3) 촉매 제조 및 반응성 평가

김영주,황운연,구기갑,김용렬,박종수,윤왕래 한국화학공학회 2004 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.42 No.1

HVOCs 제거에 사용되는 백금-팔라듐계보다 저렴한 촉매 개발을 목적으로 다양한 루테늄계 촉매를 제도하여 C_(1)-HVOCs 분해 특성 평가 실험을 수행하였다. 그 결과 Ru[2]-Sn[2]/γ-Al_(2)O_(3) 촉매가 가장 우수한 성능을 보였다. 구조 증진제인 주석은 흡착 산소의 양을 증가시키고, 다양한 산소 이온 종의 생성에 기여함을 알 수 있었다. HVOCs 분해 반응에 첨가되는 산소 원자는 주로 루테늄과 주석에 흡착되며, CH_(3) 등 HVOCs는 지지체인 γ-Al_(2)O_(3)의 브뢴스테드 및 루이스 산점에 흡착됨을 알 수 있었다. 흡착된 HVOCs의 염소와 브뢴스테드 산점의 수소 화학 결합에 의한 HCl의 생성 반응이 HVOCs 분해의 주 반응 기구임을 알 수 있었다. Various ruthenium(Ru) based catalysts, which were less expensive than Pt-Pd based catalysts, were prepared and their activity with C_(1)-HVOCs(Halogenated Volatile Organic Compounds) was evaluated. Ru[2]-Sn[2]/γ-Al_(2)O_(3) was found to have the most desirable effect on the destruction of HVOCs. Tin taken as a structural promoter was found to increase the amount of oxygen adsorption and to generate various oxygen ions. Oxygen atoms were found to be mainly adsorbed on the surface of ruthenium and tin and HVOCs such as CH_(3)Cl to adsorbed on Bronsted and Lewis acid sites of γ-Al_(3)O_(3) supports. It was found that the formation of HCl by the reaction of chlorine in HVOCs with hydrogen atom on Bronsted acid site was the main reaction mechanism in the destruction of HVOCs.

육계 농가의 가격정보수집 행위 및 경영 애로사항

김정주,김운영 건국대학교 자연과학연구소 1996 建國自然科學硏究誌 Vol.7 No.-

The purpose of this study is aiming at understanding the behavior of broiler growers in collecting information about broiler price in Korea. In order to achieve the goals questionnaires collected from 61 broiler growers during May 1995 were analyzed. The respondents' demographic data were summarized as 45 year-old, high school graduated and 11 year-experienced broiler growers. Their average farm size was 24,125 heads with 4.1times turnover per year, and annual income was 25.4 million won(U$32,000). The main sources of the information about price were magazines(38.3%) and seminar organized by Korean Poultry Association(29.8%). Seventy seven percent(77.0%) of the respondents replied that they had information about price, which was published(44.3%) and self collected(29.5%). The respondents regarded past price and feed production amount as the main factors affecting future broiler price. The respondents pointed out that the fluctuated broiler price, unfairness in selling their products and damage by disease were the main problems to be solved in their farming. Consequently, it would be an important task to provide a price forecasting devices using personal computers in the future.

근전도 바이오피이드백을 이용한 불안장애 환자 및 정상인의 근육긴장도에 관한 비교연구

정도언,이주호 大韓神經精神醫學會 1987 신경정신의학 Vol.26 No.2

For the purpose of comparing muscle tension level and muscle relaxibility between anxiety disorder patients and normal controls, frontalis EMG levels of 28 anxiety disorder patients (male 14, female 14) and 40 normal controls (male 22, female 18)were measured. The results were as follows: 1) The mean value of EMG basal levels of the anxiety disorder group were 2.38㎶ for male and 2.89㎶ for female, which did not prove to be significantly different from those in the control group (1.77㎶ for male and 3.17㎶ for female). 2) In both male and female groups, anxiety disorder patients and normal controls were significantly different from each other in the mean EMG level on relaxation trial and this was consistent with the findings by the analysis of covariance. The result suggested that muscle relaxibility of the anxiety disorder group was significantly lower than that of the normal control group. 3) In 36% of anxiety disorder patient, paradoxical rise of the muscle tension above the basal(resting) level was noted on relaxation trial.

Hepatoma cell에 증식억제작용을 나타내는 식물들

이은주,정용자 慶星大學校 1998 論文集 Vol.19 No.1

We have studied that the effect on the inhibition of the cancer cell growth by the 3-[4,5-Dime wthylthiazol-2 yl]-2,5-diphenyl-tetrazolium bromide(MTT) assay, to investigate the anticancer effect with plants, observed around us, by culturing the human hepatoma cell-line. And we knew it was the best condition that the cell number was 4×10³ cells/well and the time of culture is 48 hours. We found that Equisetum arvense L. and Lactuca dentata Makino. var. Flaviflora Makino. exhibited a good anticancer effect and especially Capsicum annum L. angulosum Mill exhibited the best effect of them.

工場廢水에 關한 硏究 : 食品工場의 廢水分析 Analysis on Waste Water of Food Plant

徐株洙,趙鏞雲 진주산업대학교 1981 論文集 Vol.19 No.-

食品工場인 豆腐製造業體의 廢水分析에 있어서 다음과 같은 結果를 얻을 수 있었다. 工程中 豆乳를 凝固시킨 후 成型時 除去되는 숫물의 BOD가 7112∼13140으로 本 工場의 폐수의 主汚染源임을 알 수 있었다. 廢水 處理水에서 pH 6.7∼7.0, BOD 86.2∼107.4, 부유물질 18∼32, 유지류 1.1∼3.1로서 우리나라 工場廢水 基準値 以內이며 特히 부유물질 및 유지류는 대단히 낮았다. This report analyzed the waste water of bean curd manufacture in food plants. The results were as follows. After soy milk was solidified, BOD of waste water removed form bean curd forming was the highest as 7112∼13140 mg/ℓ and main pollutant. Discharging water has pH; 6.7∼7.0, BOD;86.2∼107.4mg/ℓ, SS; 18∼32mg/ℓ and n-Hexane extract; 1.1∼3.1mg/ℓ. Specially SS and n-Hexane extract were severely low.

항정신병약물을 처음으로 사용하는 초발 정신증 환자에서 나타나는 체중 및 대사성 지표의 변화 : 후향적 연구

김우진,심주철,공보금,강제욱,문정준,김정은,김민걸,박민경,김성진,김현정,정도운 대한생물치료정신의학회 2011 생물치료정신의학 Vol.17 No.2

Objectives:This study was to identify weight & metabolic changes in first-episode psychotic patients with antipsychotics use and investigate the differences of weight & metabolic changes between first-episode psychotic patients and controls with antipsychotics use. Method:In this retrospective study, twenty eight first-episode psychotic patients and twenty eight controls with schizophrenia, schizoaffective or bipolar disorder defined by DSM-IV criteria were included. Information about demographic and clinical characteristics of the subjects was gathered from the medical records. Also body weight, sBP, dBP, fasting glucose, lipid profile and WBC count were evaluated before and after antipsychotics use. Rogistic regression was conducted to assess factors associated with weight gain. Results:First-episode psychotic patients showed more weight and BMI changes than controls after antipsychotics use, and these changes continue over 12 months. On the other hand, there were no significant factors associated with weight gain. Conclusion:The results of present study suggest that antispychotics is one of the major causes inducing weight gain of psychotic patients and antipsychotics-induced weight gain is more vulnerable to drug-naive first-episode psychotic patients.

MCF-7에 미치는 인근식물들의 항암효과 Screening Test

곽수영,이은주,정용자 慶星大學校 1998 論文集 Vol.19 No.1

We have studied that the effect on the inhibition of the cancer cell growth by the 3-[4,5-Dimewthylthiazol-2 yl]-2,5-diphenyl-tetrazolium bromide(MTT) assay, to investigate the anticancer effect with plants, observed around us, by culturing the human MCF-7 mammary gland adenocarcinoma cell-line. And we knew it was the best condition that the cell number was 4×10³ cells/well and the time of culture is 48hours. We observed the effect on the inhibition of the cuncer cell growth with plants, observed us and we can find that Capsicum annum L. angulosum Mill exhibited a good anticancer effect.