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설비종합효율과 불량률을 고려한 DBR 운영에 관한 연구
박동연,윤덕균 한국산업경영시스템학회 2003 한국산업경영시스템학회 학술대회 Vol.2003 No.추계
TOC(Theory Of Constraints) has been applied to manufacturing field traditionally. Nowadays, it"s area is being wide to SCM, Service, Marketing. This paper analyzed Demand pull Manufacturing system, then, tried to apply TOC concept for improving productivity. It used DBR (Drum-Buffer-Rope) considering defect and OEE (Overall Equipment Efficiency). For illustration, simulation was showed and it is suggested how to do for productivity improvement.
한글 글꼴 유사성 판단을 위한 획 요소 속성의 영향력 분석
박동연,전자연,임서영,임순범,Park, Dong-Yeon,Jeon, Ja-Yeon,Lim, Seo-Young,Lim, Soon-Bum 한국멀티미디어학회 2020 멀티미디어학회논문지 Vol.23 No.12
As various styles of fonts were used, there were problems such as output errors due to uninstalled fonts and difficulty in font recognition. To solve these problems, research on font recognition and recommendation were actively conducted. However, Hangul font research remains at the basic level. Therefore, in order to automate the comparison on Hangul font similarity in the future, we analyze the influence of each stroke element property. First, we select seven representative properties based on Hangul stroke shape elements. Second, we design a calculation model to compare similarity between fonts. Third, we analyze the effect of each stroke element through the cosine similarity between the user's evaluation and the results of the model. As a result, there was no significant difference in the individual effect of each representative property. Also, the more accurate similarity comparison was possible when many representative properties were used.
당뇨환자의 식사처방 순응도에 영향을 미치는 사회심리적 요인 분석 II: 설문조사 방법을 이용하여
박동연,최선정,박혜련,안홍석 대한지역사회영양학회 2000 대한지역사회영양학회지 Vol.5 No.1
The purpose of the study was to find the sociopsychological factors predicting the intention of compliance with the dietary regimen in diabetes with a questionnaire. Data were collected from 282 adult noninsulin-dependent diabetics in Seoul, Kyoggida, and Kyongsangbukdo in Korea. Stepwise multiple regression analysis was conducted with predictor variables from theories of the Health Belief Model, Social Cognitive Model, The Theory of Reasoned Action , and Social Support. The behavioral intention of compliance with the prescribed diet was the independent variable. Subjects norm self-efficacy knowledge about diet therapy, outcome expectation, relationship with medical team, threat of deterioration of disease, and social support were the independent variables, The mean score of behavior intention was high ie 35.3 out to 42. Subjective norm and self-efficacy were the significant variables to predict the intention of dietary compliance. These variables comprised 39% of the common variance. To increase dietary compliance by influence of the referents and improve self-efficacy significant referents must be included and concrete and practical methods to follow the dietary regimen must be provided in nutrition education.
박동연,조세란,김남희,임순범,Park, Dong-Yeon,Jo, Se-Ran,Kim, Nam-Hee,Lim, Soon-Bum 한국멀티미디어학회 2022 멀티미디어학회논문지 Vol.25 No.9
Recently, research on various font designs has been actively conducted to deliver effective emotional information in a digital environment. In this study, we propose a Hangul font outline vector modification algorithm that effectively conveys sensitivity according to weather information and can be transformed immediately. The algorithm performs a series of transformations: sets outlines according to design pattern templates, calculates the glyph's position to reflect physical rules, splits outline segments into smaller sizes and deforms the outlines. Through this, we could create several vector font designs such as humidity, cloud, wind, and snow. The usability evaluation was close to good, so it can be used in diverse ways if we improve readability and effective design expression.
Changes of Protein Pattern of Mungbean Seeds, Phaseolus aureus During Germination
박동연,조숙자,신용철,Park, D.Y.,Cho, S.J.,Shin, Y.C. Korean Society of Food Science and Technology 1986 한국식품과학회지 Vol.18 No.2
녹두의 발아중 수분 함량의 변화, 총 단백질과 가용성 단백질 함량의 변화, 그리고 전기영동에 의한 가용성 단백질의 변화 패턴을 조사하였다. 건조녹두의 수분함량은 12.7%이고 침지 후에는 60% 였으며 발아함에 따라서 점차 증가하여 90.7%까지 올라갔다. 녹두를 침지하므로써 급격히 총 단백질 함량과 가용성 단백질 함량이 감소하였고 발아 일수가 경과함에 따라서 점진적인 감소를 보였으며, 총 단백질과 가용성 단백질은 비슷한 감소 패턴을 보였다. 녹두의 가용성 단백질을 SDS로 처리하지 않고 전기영동 하였을때 2개의 넓은 band와 3개의 즘은 band를 얻을 수 있었고, 발아함에 따라서 2개의 넓은 band는 점차 희미해져 단백질이 분해되고 있음을 알 수 있었다. 그러나 다른 band의 단백질들은 비교적 분해되지 않고 남아 있었다. 녹두의 가용성 단백질을 SDS-PAGE로 관찰 하였을때 19개의 분명한 band를 얻을 수 있었고 발아함에 따라서 대부분의 단백질 band는 분해되어 희미해져 갔으나 상당한 부분이 발아 7일째까지 분해되지 않고 남아 있음을 알 수 있었다. During the germination of mungbean seeds, the changes of water contents, total and soluble proteins, and electrophoretic pattern of the soluble proteins were examined. The moisture content of a dry mungbean was 12.7%, which was greatly increased after the soaking. Along to the germination period, the moisture contentof the mungbean sprouts was gradually increased up to 90.7%. The contents of total and soluble proteins were sharply decreased after the soaking of the mungbean and decreased gradually during the germination. PAGE of the soluble proteins showed two broad bands and three sharp bands. During the germination, two broad bands were weadened but other bands were relatively stable. SDS-PAGE showed 19 discrete bands and during the germination, the most of the bands were thinned or disappeared. But some of the protein bands were stable until the end of germination.
박동연,이유상,조은영,조승희,장용이,전현옥,장수연,윤세창,김종원,홍경수 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.3
Objectives : The authors recently found a suggestive evidence of linkage of chromosome 8p21-12 to schizophrenia in Korean multiplex families. Neuregutin 1 (NRGI) was identified in this locus as a positional and functional candidate gene for Schizo-phrenia, through several independent studies with European and Chinese populations. The purpose of this study is to determine whether NRGl is associated with schizophrenia in Korean population. Methods : Three SNPs (SNP8NRG221533, SNP8NRG241930, SNP8NRG243177) and two microsatellites markers (478B14-848,420M9-1395) located at the 5' end of NRGI were genotyped for 242 unrelated schizophrenia patients and the same num-ber of normal controls. Genetic association was tested by χ²-test (df=1). Not only for the whole patients group but also for asubgroup of patients with auditory hallucination. This subtype showed stronger linkage with chromosome 8p12 in the prior study of the authors with multiplex families. Results : G allele of SNP8NRG241930 was significantly in excess in the subgroup of patients with auditory hallucination compared to the control group (p=0.03, 0R=1.76). We also found that 3 SNPs haplotype TTC (p=0.04, 0R=0.58) and five markers haplotype TTC53 (p=0.01,0R=0.49) were associated with schziophrenia with a protective effect. Three SNPs haplotype CGT which is a part of the at-risk haplotype of the Icelandic schizophrenia families was found in excess in the patients group but no significant association was observed. Conclusion : NRGI might either play a mle in the predisposition to schizophrenia or be in linkage disequilibrium with a causal locus of this illness.