전자 포트폴리오 평가가 어머니와 교사의 유아발달평가 일치도 및 어머니의 유아교육 참여도에 미치는 영향

문정의,황해익 부산대학교 영유아보육연구소 2003 영유아보육연구 Vol.9 No.-

The objective of this Study is to identify how the electronic portfolio evaluation affects the mothers evaluation of their children and how they view their participation in the kindergarten by selecting the two issues as follows; 1) What change will take place as a result of carrying out the electronic portfolio evaluation with respect to the level of consistency between the evaluations by mothers and instructors of the children in question? 2) What change will take place in the mothers understanding of the kindergarten education with the electronic portfolio evaluation in place? For the purposes of the two issues stated, we selected 30 children of ages less than 5 at H Kindergarten located in Kumkok-dong, Puk-ku, Pusan, dividing into the experimental group comprised of 15 children and the control group of 15 children. We performed the electronic portfolio evaluation for 24 weeks from April to September in a total of 11 sessions. Since we discovered from pre examination that there is no difference between the experimental and control groups, and to explicate the first issue, we examined changes before and after carrying out the electronic portfolio evaluation in terms of the level of consistency between the evaluations by mothers and instructors of the children in question. Consequently, we have discovered that the said level of consistency after the execution of the electronic portfolio evaluation has enhanced as against before the execution. From examining the said changes based upon an independent sample t- within 5 percent of the range of deviation, we have discovered that there is a valid difference in terms of the total points scored. In view of the lower elements of the developmental checklist, there is a valid difference in linguistic ability to read and write, further to physical growth. Sharing information on the children by mothers and instructors alike, and frequent communications made amongst, thereby resulting in the enhanced level of consistency in evaluations by mothers and instructors of the children, lends to our interpretation that the resulting, relatively precise understanding of the child development is more likely. For the second issue, we observed changes before and after the electronic portfolio evaluation by examining surveys on the understanding of participation in the kindergarten by the mothers involving the experimental and control groups. As a result, we have discovered that the mothers understanding of their participation in the kindergarten education has declined in the points scored as against that before. Nevertheless, it is evident in the comments provided by the mothers following the execution of the electronic portfolio evaluation, rendering a conclusion that the portfolio evaluation must have had some effects upon their understanding of the participation in the kindergarten education. Instead, this could be reflective of the differences arising from what were planned and carried out, while intrinsically indicative of their resentment from their failure to carry out their plans since the start of the semester. Furthermore, of the lower elements of the understanding on the participation, the experimental group directly participating in the electronic portfolio evaluation in terms of communication, provides a significantly valid difference against the control group (p<.01), which we believe may provide a basis for the electronic portfolio evaluation to be valued as a new form of communication.

Ground Level의 수직적 확장을 통한 Public 상업시설 계획안

정의문(Jung, Eui-Moon),이정만(Lee, Jung-Man) 대한건축학회 2011 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.31 No.1(계획계)

난지도 침출수의 단독 처리를 위한 광촉매 반응 시스템의 적용

문정의(Jung Uye Moon),김성준(Sung Joon Kim),박영규(Yung Kyu Park) 大韓環境工學會 1998 대한환경공학회지 Vol.20 No.12

트리즈를 이용한 에어컨디셔너 프레임구조의 강건설계

정의문(Yiemoon Jeong),이종수(Jongsoo Lee) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.11

In the quality-oriented product design, uncertainties and/or noise factors have been more significantly recognized due to the high-cost upgrade of product body exterior, the diversities of sales area and distribution channel, etc. In this context, the design robustness is necessary in order to accommodate more complex and detailed design requirements such as the rational selection of material, structural safety and isolation of sound noise. The present study explores an implementation of TRIZ based robust design process with application to an air-conditioner frame structure that has a number of noise factors during the product development and environmental considerations.

한국형 출혈열 환자에서 병기에 따른 혈중 Atrial Natriuretic Polypeptide 농도의 변화

박정의(Jeong Euy Park),송치욱(Chi Wook Song),송관규(Gwan Gyu Song),표회정(Heui Jung Pyo),박승철(Seung Chull Park),이창홍(Chang Hong Lee),김대원(Dae Won Kim),이갑노(Kap Ro Lee),양영선(Yung Sun Yang),황흥곤(Heung Kon Hwang),문정식(Jung 대한내과학회 1987 대한내과학회지 Vol.33 No.6

N/A The plasma atrial naturiuretic polypeptide (ANP) was repeatedly measured in each clinical phases in 20 patients (20.8±7.2yr) with Korean Hemorrhagic Fever (KHF). The study purpose was to see whether there is any relationship between the clinical course of KHF and the changes of plasma level of ANP. In three patients the plasma ANP could be repeatedly measured from the early oliguric to diruetic phases. In these three patients the plasma level of renin activity and aldosterone were very high in the early oliguric phase. Then the plasma renin activity and aldosterone level decreased steeply in remarkable degree to near normal level while the patient is still in oliguric phase and stayed at this level during the diuretic phase. The plasma ANP level was low (30-80pg/ml) in the early oliguric phase. Then with the sudden remarkable decrease of plasma renin activity and aldosterone the plasma ANP increased rapidly to high level (230-280pg/ml), then was decreased to near normal level (90-190pg/ml) making a narrow peaked plasma ANP concentration curve, and then the level stayed at near normal level during the diuretic phase. Around the time when the plasma renin activity and aldosterone concentrations were decreased to their low level and the plasma ANP was increased to it's peak level the oliguric phase was changed to the diuretic phase. The changes of plasma cortisol level followed the pattern of changes of plasma renin and aldosterone. It is possible that the increase of plasma ANP level might have had some role in the initiation of diuretic phase in these patients. It is not certain whether these changes are the unique changes seen only in patients with KHF or the changes seen also in patients with acute renal failure of other causes.

CMC계 수용성 섬유의 특성을 이용한 친환경적 섬유재료의 pilot plant 적용 연구

정의현,박귀남,장석흥,이승문,박진원,신재균 한국화학공학회 2007 화학공학의이론과응용 Vol.10 No.2

This study is manufacturing environmental-friendly fiber material using characteristics of the CMC water soluble fiber. The process of CMC fiber consist of mercerization, etherification, washing, drying. We build continuos processing pilot plant and find optimal process conditions. Mercerization and etherification is concerned about solubility and D.S. Drying is concerned about tensil strength and fiber surface improvement.

급성 발작으로 내원한 만성폐쇄성 폐질환 환자에서 사망의 예측 인자

정의식,이혜리,문유선,조근호,정규철,심재용 대한가정의학회 1996 Korean Journal of Family Medicine Vol.17 No.12

Streptococcus thermophilus와 Lactobacillus casei를 이용한 미강 첨가 발효유의 품질특성에 관한 연구

홍성문 ( Sung Moon Hong ),구민성 ( Min Seong Gu ),정의천 ( Eui Chun Chung ),강필구 ( Pil Gu Kang ),김철현 ( Cheol Hyun Kim ) 한국유가공기술과학회 2015 Journal of Dairy Science and Biotechnology (JMSB) Vol.33 No.1

본 실험은 쌀겨를 발효식품에 이용하고자 상업용 균주인Streptococcus thermophilus(ST-body1), Lactobacillus casei(LC-10)을 이용하여 발효유를 제조하고, 발효시간 경과에 따라 적정산도, 유산균수, 유기산 측정, 유리아미노산 측정, 관능검사를 측정하였다. ST-body1은 대조구와 처리구 모두발효 3시간째에 급격하게 산도가 증가하였다. 하지만 LC-10은 산도의 증가폭이 크지 않아 24시간 발효를 하여도 산도가 0.5%를 넘지 못하였다. 균주의 생균수는 대조군과 실험군 모두 배양 24시간 동안 뚜렷한 경향 없이 106~109 CFU/mL 사이로 존재하였다. 유기산 및 유리아미노산 측정 결과,ST-body1 생장 및 생육에는 glutamic acid가 LC-10 생장 및 생육에는 aspartic acid가 밀접한 관계를 보였으며, LC-10은 발효 시 methionine이 20~30시간 경에 감소하다가 증가하는 것으로 보아 methionine을 발효 시 이용하고, 재생산하는 것으로 추측된다. 관능검사 결과, 선호도는 ST-body1이 미강의 존재 유무에 관계없이 우수하였다. The present study was carried out to evaluate the preparation of the fermented milks with rice bran and to prove that the bacteria used are necessary for providing amino acids in this process. The rice bran on fermented milk with Streptococcus thermophilus (ST-body1) and Lactobacillus casei (LC-10). The fermentation limit was set until acidimetry score reaches 1. There are reports of titratable acidity, pH, viable cell count and amounts of organic acids affecting amino acid production about physical and chemical analysis measured using HPLC. Finally, sensory test was surveyed. In this study, the rate of acidification was higher in the fermented milk with rice bran than in the common fermented milk. In case of the number of cells was 1.0×108 CFU/mL in group. The lactic acid and citric acid content in yogurts prepared with rice bran using Streptococcus thermophilus (ST-body1) and Lactobacillus casei (LC-10) was higher than that in the control yogurt. Amino acids derived by rice bran were effected in fermentation for each bacteria``s necessary amino acid production, and it made bacteria growth larger. From the physical test of the fermented milk with rice bran, flavor, texture, sweetness, overall taste of the fermented milk of Streptococcus thermophilus (ST-body1) were found to be much better than those of the other groups. The results obtained for the fermented milk prepared with rice bran using Streptococcus thermophilus (ST-body1) are significant.

광용적맥파를 이용한 개인인증 기술 개발 적용에 대한 연구

문효정(H. J. Moon),손재범(J. B. Son),서수원(S. W. Seo),정의성(E. S. Jung) 한국재활복지공학회 2018 재활복지공학회논문지 Vol.12 No.4

생체인증 기술 (biometrics)은 보안 및 개인인증의 측면에서 폭넓게 사용되고 있으나, 복제의 위험, 인식률 저하 등의 문제가 있다. 본 연구에서는 이러한 단점을 보완하는 기술로 광용적맥파 (photoplethysmography, PPG)를 이용한 개인인증 방법을 제안한다. 제안하는 사용자 등록 알고리즘은 계측된 PPG 신호의 6개 특징값을 추출하여 데이터베이스에 저장하는 알고리즘이고, 이 계측된 데이터베이스와 새롭게 측정된 PPG 신호의 특징값을 비교분석하여 사용자를 식별하는 것이 개인인증 알고리즘이다. 이 방법의 타당성을 검증하기 위해 9명의 피험자를 모집하여 실험하였다. 9명의 피험자는 모두 사용자 등록 알고리즘을 시행하고, 그 중 같은 조건에서 참여 가능한 5명의 피험자에 대하여 개인인증을 구현하였다. 총 5명중 4명이 개인인증에 성공하였다. 연구결과를 바탕으로 PPG를 이용한 개인인증 기술이 기존의 생체인증 기술의 단점을 보완하는 방법이 되리라 기대된다. Biometrics are widely used in terms of the personal authentication and the security of personal data. However, there are several drawbacks of the biometric identification. In this study, we propose a personal authentication method using photoplethysmography (PPG) as biometric identification to solve this problem. The proposed method is consist of user registration algorithm and personal authentication algorithm. Six feature parameters extracted from measured PPG are stored in the database using the user registration algorithm. Subsequently, a comparative analysis of newly extracted features and the database to recognize the same person based the personal authentication algorithm. To test the validity of these algorithms, an experiment was performed on a group of 9 subjects for the user registration algorithm and on the only 5 subjects for the personal authentication algorithm. The result with a successful number of 4 out of the 5 subjects shows that the proposed personal authentication using PPG can be used as biometric method compensating the conventional methods’ drawbacks.

리튬 2차전지용 $LiCoO_2$양극의 제조 및 특성

문성인,정의덕,도칠훈,윤문수 한국전기전자재료학회 1994 電氣電子材料學會誌 Vol.7 No.4

In this study, new preparation method of LiCoO$_{2}$ was applied to develop cathode active material for Li rechargeable cell, and followed by X-ray diffraction analysis, electrochemical properties and initial charge/discharge characteristics as function of current density. HC8A72- and CC9A24-LiCoO$_{2}$ were prepared by heating treatment of the mixture of LiOH H$_{2}$O/CoCO$_{3}$(1:1 mole ratio) and the mixture of Li$_{2}$CO$_{3}$/CoCO$_{3}$(1:2 mole ratio) at 850 and 900.deg. C, respectively. Two prepared LiCoO$_{2}$s were identified as same structure by X-ray diffraction analysis. a and c lattice constant were 2.816.angs. and 14.046.angs., respectively. The electrochemical potential of CFM-LiCoO$_{2}$(Cyprus Foote Mineral Co.'s product), HC8A72-LiCoO$_{2}$ and CC9A24 LiCoO$_{2}$ electrode were approximately between 3.32V and 3.42V vs. Li/Li reference electrode. Stable cycling behavior was obtained during the cyclic voltammetry of LiCoO$_{2}$ electrode. According as scan rate increases, cathodic capacity decreases, but redox coulombic efficiency was about 100% at potential range between 3.6V and 4.2V vs. Li/Li reference electrode. Cathodic capacity of HC8A72-LiCoO$_{2}$ was 32% higher than that of CFM-LiCoO$_{2}$ and that of CC9A24-LiCoO$_{2}$ was 47% lower than that of CFM-LiCoO$_{2}$ at 130th cycle in the condition of lmV/sec scan rate. Constant cur-rent charge/discharge characteristics of LiCoO$_{2}$/Li cell showed increasing Ah efficiency with initial charge/discharge cycle. Specific discharge capacities of CFM and HC8A72-LiCoO$_{2}$ cathode active materials were about 93mAh/g correspondent to 34% of theretical value, 110mAh/g correspondent to 40% of theretical value, respectively. In the view of reversibility, HC8A72-LiCoO$_{2}$ was also more excellent than CFM- and CC9A24-LiCoO$_{2}$.