Development of High efficiency Food Waste Treatment System for Entering New and Renewable Energy Industry in Southeast Asia

Kwon,Ki-Tae,Lee,Woo-Sik,Kwon,Lee-Seung,Seong,Seung-Hwan,Kim,Young-Do,Kwon,Woo-Taeg 한국유통과학회 2019 KODISA ICBE (International Conference on Business Vol.2019 No.-

It is possible not only to treat high concentration organic matter such as food wastes but also to utilize food wastes as resources according to the bio-energy generation such as methane. The method of co-digestion of mixed wastewater mixed with organic wastes such as sewage sludge concentrated waters together with drinking wastewater is the most ideal method. Radiation not only has germicidal power in water treatment, but also is effective in decomposing degradable organic matter. Second chemical contamination problem is also solved because it does not use chemicals. Introduction of radiation pretreatment system to solve problems caused by mixing of waste water and organic waste resources. Biological electrochemical fusion system is used to remove the nutrients contained in the organic matter-removed mixture. Through the development of a system for treatment of high concentration wastewater, the processing efficiency is verified through the universal water treatment system for wastewater containing high concentration organic matter in addition to treatment of wastewater.

자궁선근증의 고찰

조환성,이해혁,정성윤,김성욱,이순곤,남계현,이임순,이권해 순천향의학연구소;Soonchunhyang Medical Research Institute 2000 Journal of Soonchunhyang Medical Science Vol.6 No.1

Objective: This study was designed to estimate the frequency and risk factor for edenomyosis Methods: The clinical records of 623 women undergoing hysterectomy were retrieved in the Department of Obstetrics and Gynecology, Soonchunhyang University Hospital, during 5 years, from Jan. 1995 to Dec. 1999. Results: The following result were obtained. 1. Adenomyosis was found in 247 of 623 patients(39.6%) 2. The highest incidence was 40-49 years of age group, an incidence of 46.6% and mean age was 44.7 years. 3. Adenomyosis was more frequently observed in parous women than non-parous women, such as 93.1% and 6.9%, respectively. 4. Dysmenorrhea, metrorrhagia, pelvic pain and vaginal bleeding were common symptom of adenomyosis, an incidence of 28.7%, 19.0%, 18.2% and 16.2%, respectively. 5. Myoma was the most combined disease in adenomyosis, showing the incidence of 54.7%. 6. Grossly, the size of uterus was enlarged more than 10 weeks gestational size in adenomyosis, an incidence of 61.9%. 7. Preoperative diagnostic accuracy of adenomyosis was 6.9%. Conclusion: The results show that deeply understanding of the common symptoms and epidemiology of adenomyosis improve the preoperative diagnostic accuracy.

부분적으로 유체가 채워진 원통형 관내의 외팔보 진동특성에 관한 실험적 연구

권대규,유계형,소순선,이성철 전북대학교 공학연구원 ( 구 전북대학교 공업기술연구소 ) 2003 工學硏究 Vol.34 No.-

This paper presents the vibration characteristics of an intelligent cantilever beam in contact with fluid using PZT actuator and PVDF film. The effect of liquid level on free vibration of composite beam in a partially liquid-filled circular cylinder is investigated. The dynamic behaviors of a flexible beam-water interaction system are examined. The coupled system is subject to an undisturbed boundary condition in the fluid domain. In the vibration analysis of wetted beam, the decoupled analyses between beam and fluid have been conventionally employed by considering firstly the composite beam vibration in air and secondly performing the correction taking account for surrounding fluid effects. That is, this investigation was to look at how natural frequencies, mode shapes, and damping are affected by liquid level variations. Using the coupled modal reanalysis method employing the governing equations and the clamped-free and free-free boundary conditions, the vibration analysis of beam in contact with fluid is performed. We also carried out the experimental verification about reliability of theoretical methods to inclusive vibration analysis of the fluid-structure system with PZT actuator and PVDF film. It was found that the coupled natural frequencies decrease with the fluid level for the identical composite beam due to added mass effect.

A. 高校 科學 (生物·地球科學) 및 數學科 探究學習의 評價模型 定立과 評價紙 開發

李相協,權炳奎,林在圭,孫文求,吳岱燮,楊洪準,梁承榮,姜用熙,林成圭,金正遠,金吉民,兪正在 경북대학교 과학교육연구소 1982 科學敎育硏究誌 Vol.6 No.-

Currently the evaluation of high school science and mathematics learning has been too much knowledge-centered without concerning the inquiring ability or scientific attitude. This study, therefore, was made for the purpose of establishing of evaluation model for high school science (biology and earth science) and mathematics learning and its evaluation items. In this paper, the research was done about three fields, biology, earth science and mathematics. 1. For the biology, the evaluation methods of inquiry learning were studied with the foreign references, and proper evaluation items were suggested. 2. For the earth science, after analizing 5 kinds of earth science textbook of current using in high school, essential 19 items were selected. 5 of them were tested in test group and control group, then, the results were analized. 3. For the mathematice, the teaching elements of「Set」and「Flow chart」in mathematics (Ⅰ) were selected and structured. Detailed teaching objects were established and evaluation items were introduced.

Frank L. Wright 초기건축의 공간구석 특성에 관한 연구

이정석,이용재,권성진 순천향대학교 부설 산업기술연구소 2004 순천향 산업기술연구소논문집 Vol.10 No.1

The purpose of this study is to define the variation of spatial composition in Frank L. Wright's architecture focusing on the houses of Prairie in the early period(1892~1910). The view point of architectural organization, the classified principle of spatial composition be related to the geometric space and the organic space in that period. We select the houses of Frank L. Wright : Blossam House(1892), Winslow House(1893), Heller House(1896), Willits House(1902), Martin House(1904), Coonley House(1907). The result of this study shows that the spatial composition on the houses of Prairie is variated from the linear symmetry to symmetrical axial centripetal and non-symmetric expansion.

한국인 심부전증 환자 심근에서의 인형 거대 세포 바이러스 감염

이명용,이무용,김영권,한성식,최성준,김효수,이영우,서정돈 단국대학교 1998 論文集 Vol.33 No.-

Objectives: In order to evaluated the prevalence and the site of infection of cytomegalovirus in terminally failing heart, cytomegaloviral DNA was detected in the explanted hearts of transplantation recipients. Methods: DNA extractions were performed from explanted failing hearts(N=22) and normal hearts(N=5) and polymerase cain reactions(PCRs) were done for detection of late gene sequence coding pp150 glycoprotein. The products were confirmed by electrophoresis on the 1% agarose gel. n order to improve the detectability of cytomegaloviral genome, nested PCRs were executed with the primers designed for the original 607 bp products. In situ PCRs also were done with the samples which were confirmed as positive for CMV viral genome by nested PCRs. Results: All patients had IgG anti-cytomegalovirus antibody and did not have IgM anti-cytomegalovirus antibody. Cytomegaloviral genomes in myocardium were detected by polymerase chain reaction. The 607bp products by PCRs were found in both explanted failing heart(3 cases/22. 13.5%) and normal hearts( 1 case/5, 20.0%). In nested PCRs, 186bp products were found in both failing hearts(LV 4/22, LA 3/2, RV 4/22, RA 0/17) and normal hearts(LV 2/5, LA 1/4, RV 2/5, RA 2/5). These was no significant change in positivity of cytomegaloviral DNA genome between failing and normal hearts. Total positivity of cytomegaloviral genome in explanted hearts was 44.4% according to the nested PCR results. The positivity of cytomegaloviral DNA by n situ PCR was 33.3%(4/12), and the site of positive reaction was the nuclei of the myocardial cells. Conclusion: Cytomegalovirus was rarely observed in explanted hearts of terminal heart failure and nested PCR could enhance the sensitivity of cytomegaloviral genome detection. The result of the in situ PCR showed the site of the cytomegaloviral infection was nuclei of the myocardial cells. Cytomegalovirus, however, might have no direct causal relationship in the development of terminal heart failure.

물리문제해결 실패자(초심자)와 성공자(전문가)의 문제해결 사고과정에 관한 연구

권재술,이성왕 한국교원대학교 과학교육연구소 1991 청람과학교육연구논총 Vol.1 No.1

This study intended to find the differences between expert's and novice's thinking processes when they solve physics problems. Five physics professors and twenty sophomore students in a physics department were participated in the study. The researcher investigated their thinking processes in solving three physics problems on NEWTON's law of motion. The researcher accepted so called "Thinking Aloud" method. The thinking processes were recorded and transfered into protocols. The protocols were analysised by problem solving process coding system which was developed by the researcher on the basis of Larkin's problem solving process model. The results were as follows: (1) There was no difference of time required in solving physics problem of low difficulty between expert and novices; but, it takes 1.5 times longer for novices than experts in solving physics problems which difficulties are high and average. (2) Novices used working forward strategy and working backward strategy at the similiar rate in solving physics problems which difficulties were average and low, while Novices mo mostly used working backward strategy in solving physic problems which difficulty was high. Experts mostly used working forward strategy in solving physics problems whose difficulties was average and low, however experts used working forward strategy and working backward strategy at the similiar rate in solving physics problem which difficulty was high. (3) Novices usually wrote only a few information on the diagram of figure they drawn, on the other hand experts usually wrote almost all the information which are necessary for solving the problems. (4) Experts spent much time in understand the problem and evaluation stage than novices did, however experts spent less time in plan stage than novices did. (5) Physics problems are solved in sequence of understanding the problem. plan, carrying out the plan, and evaluation steps regardless of problem difficulty.

제6차 교육과정에 따른 고등학교 화학Ⅰ 교과서의 STS 내용 분석

이석희,김용권,문성배 부산대학교 사범대학 과학교육연구소 2001 科學敎育硏究報 Vol.28 No.-

The STS contents, emphasized in the 6th curriculum, in the chemistry Ⅰ textbooks were analyzed. The STS contents of textbooks showed average of 10.7%. The Chapter in "water and air" were included 34.8% in STS contents, 11.0% in "metal and nonmetal", 9.7% in "organic compound" and 15.1% in "our livelihood and medicine goods". When the STS contents were analyzed by STS topics of Piel, the results are as follows; 51.1% on environmental quality and utilization of natural source, 38.6% on effect of technological developments. 9.5% on energy, 0.8% on sociology of science. However, there were no topics on human engineering, population, space research and national defense. When the STS contents were analyzed by student activities of SATIS, most of the activities were research study and case study. There were few field activities of practical investigation, role play, simulation, and research design.

MPLS 네트워크 상에서 IP VPN을 위한 이동성 지원 매커니즘

이영석,고성현,양해권 국립7개대학공동논문집간행위원회 2005 공업기술연구 Vol.5 No.-

본 논문에서는 MPLS(Multiprotocol Label Switching) 네트워크 상에서 VPN(Virtual Private Network) 사용자를 위한 이동 서비스를 지원하는 메커니즘을 기술한다. 이 매커니즘은 VPN 사용자가 같은 VPN 내의 다른 사이트로 이동하거나 다른 VPN 내의 어떤 사이트로 이동하는 경우에도 동일한 VPN 서비스를 제공해 준다. 이러한 VPN 환경에서, 라우터는 이동 VPN 사용자를 위해 추가적인 기능(홈 에이전트, 이동 에이전트, 대응 에이전트)을 제공해야 한다. 본 연구에서 고려된 MPLS VPN은 IETE RFC2547에서 제안된 PE(Provider Edge) 라우터 기반 VPN 방식이 아니라 CE(Customer Edge) 라우터 기반 VPN 방식이다. 이동성 지원을 제공하는 CE 기반 MPLS VPN을 PE 기반 MPLS VPN과 성능을 비교하기 위해 시뮬레이션을 수행하고 결과를 분석한다.

구조화된 불확실성을 고려한 지능형 외팔보의 강인제어

권대규,방두열,소순선,유기호,이성철 전북대학교 공학연구원 ( 구 전북대학교 공업기술연구소 ) 2003 工學硏究 Vol.34 No.-

This paper presents the robust control of a composite beam using μ-synthesis. The natural frequencies of the composite beam featured by a piezo-film sensor and piezo-ceramic actuator are calculated by using the modal analysis method and then modal coordinates are introduced to obtain the state equations of the structural system. Two-natural frequency were considered in the modelling, because robust control theory which has inherent robustness to structured uncertainty is adopted to suppress the transients vibrations of a glass fiber reinforced(GFR) composite beam. A robust controller satisfying the nominal performance and robust performance is designed using μ-synthesis theory based on the structured singular value. Simulations and experiments were carried out with the designed controller and effectiveness of the robust control strategy was verified by results.