Fabrication of Microscale Wrinkles on a Curved Surface Using Weak-Polymerization and Thermal Curing Process

양정호(Jung Ho Yang),조지준(Zhi Jun Zhao),박상후(Sang Hu Park) Korean Society for Precision Engineering 2016 한국정밀공학회지 Vol.33 No.10

In this study, we proposed an effective and simple way to directly generate wrinkle patterns on a curved surface. A curved surface was prepared using a 3D printer and an UV (Ultraviolet)-lighting system was utilized to weakly polymerize the UV-curable thin resin layer coated on the surface, resulting in a gradient of material properties in the layer thickness. Subsequently, a thermal curing process was conducted to generate microscale wrinkles by compressive forces that were generated during complete curing. Wrinkle shapes from 5, 15, 25 sec of UV-light exposure were compared. With increasing UV-exposure, the line-width of wrinkles became thicker due to much higher strength of skin zone. The results indicated that the proposed fabrication process could be utilized for surface modification in diverse research fields.

유방암 수술에 있어서 내시경을 이용한 액와림프절 절제술

양정현(Jung-Hyun Yang),남석진(Suck Jin Nam),이병붕(Byung Boong Lee) 대한외과학회 1998 Annals of Surgical Treatment and Research(ASRT) Vol.54 No.6

상엽추출물이 제2형 당뇨병 환자의 혈당, 당화혈색소 및 혈청지질에 미치는 영향

양정화(Jung-Hwa Yang),한지숙(Ji-Sook Han) 한국식품영양과학회 2006 한국식품영양과학회지 Vol.35 No.5

본 연구는 상엽추출물의 섭취가 당뇨병 환자의 혈당, 당화혈색소 및 혈청지질에 미치는 영향을 조사하고, 체내 간기능에서의 안전성도 검증하기 위하여 당뇨병 환자에게 12주간 1,000 ㎎의 상엽추출물을 섭취시켜 전ㆍ후 차이를 비교하였으며 그 결과는 다음과 같다. 상엽군은 체중이 실험 전 58.6±9.2 ㎏에서 실험 후 58.8±9.1 ㎏으로 변화를 보이지 않았으며, 허리둘레 및 엉덩이 둘레도 실험 전ㆍ후 거의 변화를나타내지 않았으므로 상엽추출물의 섭취는 신체계측치에 영향을 미치지 않았다. 상엽군에서 수축기 혈압은 127.1±18.9 ㎜Hg에서 128.7±21.0 ㎜Hg로, 이완기 혈압은 80.5±12.1 ㎜Hg에서 77.0±12.1 ㎜Hg로 거의 변화를 나타내지 않음으로서 상엽추출물의 섭취는 당뇨병 환자의 혈압에 영향을 미치지 않았다. 상엽군에서 공복혈당은 141.9±39.4 ㎎/㎗에서 135.8±41.4 ㎎/㎗로, 당화혈색소는 7.8±1.4%에서 7.0±0.6%로 유의(p<0.05)하게 감소하였다. 그러나 위약군에서는 실험 전ㆍ후 공복혈당 및 당화혈색소에서 차이를 나타내지 않았다. 상엽추출물의 섭취가 12주간 이루어지면서 총콜레스테롤은 188.4±21.9 ㎎/㎗에서 176.7±23.8 ㎎/㎗로 감소하였고, LDL-콜레스테롤에서는 상엽군은 116.9±29.3 ㎎/㎗에서 104.3±23.2 ㎎/㎗로 유의(p<0.05)하게 감소한 반면, 위약군은 121.3±24.3 ㎎/㎗에서 121.5±17.3 ㎎/㎗로 변화가 없었다. 중성지방은 상엽추출물의 섭취 후 167.6±44.5 ㎎/㎗에서 123.2±29.3 ㎎/㎗로 유의(p<0.01)하게 감소한데 반해 위약군은 152.0±55.9 ㎎/㎗에서 155.3±51.4 ㎎/㎗로 오히려 약간의 증가를 보였다. 상엽섭취군의 공복혈당 및 당화혈색소 농도수준에 따라 그 변화를 살펴보면, 공복혈당 불량군은 실험 전 188.2±45.2 ㎎/㎗에서 상엽추출물 섭취 후 161.3±25.3 ㎎/㎗로 유의(p<0.05)하게 감소한 반면 공복혈당 양호군에서는 119.3±22.4㎎/㎗에서 119.9±21.9 ㎎/㎗로 변화를 보이지 않았다. 당화혈색소 불량군의 경우 실험 전 8.7±0.7%에서 실험 후 7.8±0.8%로 유의(p<0.05)하게 감소한 것에 반하여, 당화혈색소 양호군에서는 6.7±1.2%에서 6.6±1.2%로 변화가 없음을 확인할 수 있었다. 상엽추출물의 12주간 섭취 후 AST는 24.8±3.5 IU/ℓ에서 31.8±8.7 IU/ℓ로, ALT는 26.4±4.6 IU/ℓ에서 32.8±7.8 IU/ℓ로, γ-GTP는 31.6±4.7 ㎎/ℓ에서 33.7±4.8 ㎎/ℓ로 조금씩 증가하였으나 모두 정상범위의 수치였다. The purpose of this study was to assess the effects of mulberry leaf extract supplement on blood glucose, glycated hemoglobin (HbA1C) and serum lipids in type Ⅱ diabetic patients, and also to assess safety in liver function after mulberry leaf extract supplement. The study was a randomized placebo-controlled trial and total 23 type Ⅱ diabetic patients were divided into a MLE group taking 1,000 ㎎ mulberry leaf extract supplement per day as experimental group and a placebo group taking 1,000 ㎎ cellulose powder supplement per day for 12 weeks. After 2 weeks of wash-out period, fasting blood glucose, HbA1C, serum lipid levels and liver function test were analyzed before and after treatment of 12 weeks. The general baseline char- acteristics, nutrient intake and life style factors of study subjects were similar between two groups during intervention. The concentrations of fasting blood glucose and HbA1C (p<0.05) decreased significantly after mulberry leaf extract supplement in MLE group, while there were no changes found in placebo group. We also found it showed that mulberry leaf extract supplement for 12 weeks decreased significantly (p<0.05) the fasting blood glucose in poor fasting blood glucose group and HbA1C concentration in poor HbA1C group. The concentrations of LDL-cholesterol (p<0.05) and triglyceride (p<0.01) decreased significantly in MLE group after 12 weeks of taking the supplement, while there were no changes found in placebo group. The mulberry leaf extract supplement for 12 weeks didn't show hepatotoxicity. These results suggested that mulberry leaf extract supplement could be effective in improving fasting blood glucose and HbA1C levels in the diabetic patients, specially having high concentrations of fasting blood glucose and HbA1C among type Ⅱ diabetic patients.

교량 중앙분리대 종방향 이음부 누수방지 대책 공법 비교 평가

양정아 ( Yang Jung-ah ),김형주 ( Kim Hyung-joo ),이상순 ( Lee Sang-soon ),곽석환 ( Gwak Seok-hwan ) 한국구조물진단유지관리공학회 2019 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.23 No.2

일체형 중앙분리대에 설치된 종방향 신축이음부에 대한 현장조사결과 약 85%에서 누수가 발생되고 약 21%가 제설염화물 등에 의하여 슬래브 하단에 철근부식, 콘크리트 탈락 등 손상이 진행되고 있다. 이러한 누수를 막기 위하여 지난 10년간 다양한 누수방지 공법이 제안되고 시공되었다. 본 연구에서는 이러한 다양한 누수방지 공법들에 대하여 방수 및 내구 성능을 비교 평가하였으며, 종방향 이음부에 누수방지를 위한 예방적 유지관리를 적용한 경우와 철근부식 등 손상이 발생한 후 보수하는 사후유지관리에 대하여 경제성분석을 실시하였다. 그 결과 예방적 유지관리가 사후유지관리에 비하여 4.6배 경제성이 높은 것으로 평가되었다.

온라인 화장품 커뮤니티의 정보특성이 관계품질 및 구전효과에 미치는 영향

양정아(Jung-A Yang),황선진(Sun-Jin Hwang) 한국인체미용예술학회 2015 한국인체미용예술학회지 Vol.16 No.4

The purpose of this study was to determine the effects of the information characteristics of online fashion communities on relationship quality and WOM. The study also analyzed how the classification of online communities based on hosts makes differences in forming relationship quality. Data were collected from a total of 245 members from both communities (79 and 166, respectively) and analyzed with AMOS 6.0. For hypothesis testing, the study model was set with a structural equation modelling to examine the goodness of fit. The present study gained the following results: 1. The consensus of information in online fashion communities was found to have a negative relationship with the consumer-community relationship quality, while the information vividness and interactivity were found to have a positive relationship with the consumer-community relationship quality. 2. It was found that the higher the consumer-community relationship quality is, the more actively they accept and spread WOM. Thus, online fashion shopping malls would do best to take advantage of consumers’ frank, live and vivid information and active interaction among members in online communities. 3. Depending on the types of online fashion communities, the consumer-community relationship quality showed significant differences. The consumer-oriented community, therefore, compared to a business-centered one, was found to have a higher relationship quality.

大韓帝國期 ‘傳’類 歷史書와 그 歷史觀

梁正鉉(Yang Jung-hyun) 역사교육연구회 1999 역사교육 Vol.72 No.-

This paper intends to analyze biographies published in the Great Han Empire from the historical perspective. Biography is a type of historiography. It provides numerous sources for the value systems and historical consciousness at that time. This study focused on analyzing biographies and Its Historcal Perspective in the Great Han Empire, with relation to contemporary political spheres. ‘Gijunche(紀傳體)’ was considered as typical Oriental historiography. Biographical writing comprises an important part in ‘Gijunche’. Biography in East Asia was used to tell right from the wrongs. In Korea, it was around ‘Eulsaneukyak(乙巳勒約, 1905)’ that biographical writing got wide-spread. Persons who contributed to the saving or reinforcing of the country were chosen as the main characters of biographies. There were four distinct categories in the biographies. The first category aimed to overcome the crisis of the Great Han Empire by preserving the national essence. The second laid the primary focus on fortifying the country by learning from the foreign civilization. Foreign heroes who expanded their territories or increased the national wealth were the leading characters from this stance. Third, lessons were pursued from the heroes who saved their country which was in similar situation with the Great Han Empire. Three Founding Fathers of Italy were discussed in this context. Fourth and finally, great explorers appeared as the main character of the biography. Young adults were encouraged to raise progressive attitude toward the future through the reading of explorers’ biography. All these four categories were based on the heroism, which regards the hero as the chief power of history. Now, there are some people who believe in the power of ordinary men in history. ‘Figures’ is an essential factor in teaching and learning history. Biographical history instruction constitutes a significant part in contemporary history education. Biographies in the Great Han Empire needs reconsidering from the educational point of view.

출신지 위도에 따른 선호 조명환경에 대한 기초적 연구

양정순(Jung-Soon Yang) 한국조명·전기설비학회 2017 조명·전기설비학회논문지 Vol.31 No.6

Humans have adapted and evolved under the constantly changing natural light. At this paper, it started the research under the assumption that the perception of light environment is different according to geographic environment such as latitude. Based on color temperature, intensity of illumination, and lighting method, it investigated the preference response to readability for people with various latitudes and derived lighting data on light environment preference according to their native latitude groups. It was found that for those people who have lived long hours under the strong light near the equator through the analysis process, they prefer the high illumination level and the high color temperature in the space environment for reading. The people lived in the ‘latitude 35°~40°’ and ‘latitude 15°∼20°’ range hasve been similarly evaluated for readability of the light environment. Although it is evaluated differently depending on the illumination level and the illumination method, the suitable color temperature for the illumination environment in the reading environment is 4000K, which is suitable for the illumination environment in the reading environment. In particular, 4000K with of 700lx of direct illumination or the mix of direct and indirect illumination use is are preferred. Although there are limitations on various kinds of experiments on in the experimental variables, the preferable illumination environment of different latitude has more influenced by the color temperature rather than the illumination method or the change in the illuminance levels. the illumination direction for the readability function in the presented condition is preferable to the illumination environment according to the latitude of the hometown according to the color temperature rather than the illumination method or the illumination change in the range of illumination, The difference was significant. This study has significance in raising the importance of experimental study on the light environment based on latitude which is the overlooked geographical environment.

고등부태권도선수들의 경기규칙개정과 전자호구에 대한 만족도 연구

양정석 ( Jung Suk Yang ) 대한무도학회 2010 대한무도학회지 Vol.12 No.3

본 연구의 목적은 경기규칙개정과 전자호구의 도입에 따른 고등부태권도선수들의 만족도를 분석하여 경기규칙개정에 대한 문제점과 개선방향을 모색하여 그 효율성에 도움이 되는 기초 자료로 활용할 수 있도록 하는데 있다. 이와 같은 목적을 달성하기 위하여 대한태권도협회에서 공인한 K사의 전자호구가 사용된 전국태권도대회에 출전한 354명 고등부 선수를 대상으로 설문지를 이용하여 최종 309부를 분석에 이용하였다. 이렇게 수집된 설문지를 토대로 Window용 SPSS/PC 16.0 version 통계프로그램을 이용하여 개인특성에 따른 빈도분석(Frequencies), t-test검증과 일원변량분석(one-way ANOVA)후 집단 간의 유의한 차이를 확인하기 위하여 사후검정인 Scheffe 분석을 실시하였다. 자료 분석의 모든 통계치의 유의수준은 p<.05로 설정하였으며, 이상의 방법과 절차를 통하여 얻어진 결론은 다음과 같다. 첫째, 성별에 따른 전자호구와 경기규칙개정의 하위변인에 대해 분석한 결과 전자호구의 편의성과 기능성에서는 통계적으로 유의한 차이를 보이지 않았으며, 경기규칙개정의 하위변인인 득점개정과 경기개정에서 유의한 차이가 있는 것으로 나타났다. 둘째, 체급에 따른 전자호구와 경기규칙개정의 만족도에서는 전자호구의 편의성과 기능성에서는 통계적으로 유의한 차이를 보이지 않았으며, 경기규칙개정의 득점개정에는 유의한 차이가 있는 것으로 나타났다. 경기개정과 도입개정에서는 유의한 차이가 없는 것으로 나타났다. 셋째, 전자호구 도입 후 입상경력에 따른 전자호구와 경기규칙개정의 하위변인에 대한 만족도 검증결과 전자호구의 편의성과 기능성 모두 통계적으로 유의한 차이가 있는 것으로 나타났다. 하지만, 경기규칙의 득점개정과 경기개정은 유의한 차이가 나타나지 않았으며, 도입개정에 있어서는 유의한 차이가 있는 것으로 나타났다. This study is to provide basic references for the improvement of the efficiency by not only analyzing the satisfaction with adoption of electronic protectors and revised game rules in high school Taekwondo athletes, but also searching for improvement for the drawbacks. To accomplish this, an analysis was done based on 362 copies of questionnaires provided by 394 high school Taekwondo athletes participating National Taekwondo Contest where K company`s electronic protectors were used which had been approved by Korea Taekwondo Association. The processing used SPSS/PC for Windows (version 16.0) and analyses of frequencies in individuals, t-test and one-way ANOVA were done based on the data from the questionnaire, then Scheffe`s F test, one of the post-hoc test, was used to distinguish among groups. Significance level was set below 0.05 (p<.05) and conclusions are as follows. First, an analysis of subfactors of electronic protector and revised game rules from different sex groups showed no statistically significant differences in convenience and functionality of electronic protectors, though revised score rules and revised operation rules showed significance. However, revised introduction rules showed no significant differences. Second, an analysis of satisfaction with electronic protectors and revised game rules from different weight division groups showed no statistically significant differences in convenience and functionality of electronic protector, though revised score rules showed significance. However, revised operation rules and revised introduction rules showed no significant differences. Third, an analysis of satisfaction with electronic protectors and revised game rules from different groups which consisted of achievement of winning prize after adopting electronic protector showed statistically significant differences in convenience and functionality of electronic protectors, though revised score rules and revised operation rules showed no significance. Also, revised introduction rules showed significant differences.

농산물 가공품 선택속성이 만족에 미치는 영향

양정임(Yang, Jung-Im),이정원(Lee, Jung-Won),장양례(Yanglae Jang),이정규(Lee jungkyu),김창환(Changwhan Kim),유예경(Yegyeong Yu) 한국관광레저학회 2019 한국관광레저학회 학술발표대회 Vol.2019 No.12

The purpose of this study is to investigate the effect of agricultural product selection attributes on satisfaction.

고등학교 소설교육에서 영화매체 수용의 적합성 연구 - <오발탄>과 <내 마음의 풍금>을 중심으로 -

양정임 ( Jung Im Yang ) 東亞大學校附設 石堂傳統文化硏究院 2015 石堂論叢 Vol.0 No.61

2007 개정교육과정에서 고등학교 국어교육의 선택과목으로 <매체언어>가 편성되었다. 그러나 어떤 설명도 없이 2009 개정교육과정에서 <매체언어> 과목이 삭제되었다. 대신 국어교육에 다양한 매체를 활용하도록 교육과정에 명시하고 있다. 그리고 2011 개정교육과정을 반영해 편찬되고 있는 문학교재에서 ‘매체 언어’의 비중이 높아졌다. 이렇듯 들쑥날쑥한 교육과정의 원인은 교육이론과 교육현장의 현실적 문제가 충돌하고 있다는 증좌라 할 수 있다. 본 연구는 문학교육에 도입된 ‘매체 언어’ 중 소설교육에서 수용하고 있는 ‘영화매체’에 중점을 두고 고찰했다. 문학 교육과정에 명시된 교육목표와 문학교재 편성방향의 적합성, 문학교육에서의 영화매체도입의 적합성을 논했다. 문학 교육과정에 명시된 ‘매체 언어’의 교육목표는, ‘매체 언어에 대한 통찰력과 비판적 사고력, 창의적 사고력, 창의적 소통 능력’을 함양하는 것이다. 즉, 소설교육에 영화매체를 도입한 것은 디지털시대에 걸맞은 소통방식을 교육하기 위함이다. 그러나 본 연구에서 문학교재와 교사용 지도서를 분석한 결과, 보조 자료로 영화매체를 가지고 왔을 뿐 그 이상으로 나아가지 못하고 있음을 알 수 있다. 이렇듯 ‘매체 언어’ 도입을 통해 교육부가 지향했던 교육본래 의의를 상실했다면 이는 폐기하는 것이 바람직하다고 본다. 그럼에도 불구하고 변화하는 현대사회에 걸맞은 문학교육을 위해 영상매체 도입이 불가피하다고 보는 것이 대세라면, 현실적인 대안이 필요하다. 본 논의에서 이러한 현상을 전제로 몇 가지 대안을 제시해보았다. 첫째, 소설을 영화화한 텍스트를 편성하기 위해서는 고등학교문학교육에 가장 적합한 텍스트가 선정되어야 한다. 텍스트 선정은 각분야의 전문가들(문학, 교육학, 영화, 현직 교사)이 함께 논의를 거처이루어져야 한다. 둘째, 학습자가 영화매체의 의의와 문제점을 성찰할 수 있도록 안내하기 위해서는, 교사가 다양한 ``매체 언어``에 대해 탄탄한 지식을 갖추고 있어야 한다. 이를 위해서 교육부의 대책이 필요하다. 셋째, 학습자로 하여금 영상매체에 대한 ‘비판적, 창의적 사고력’을 갖도록 하기 위해서는, 문학교재가 ‘문제 중심 학습방법’으로 재편될 필요성이 있다. 그러나 이 대안들 역시 ‘매체 언어’의 교육목표를 위한 기존의 비현실적인 교육여건 문제가 개선될 때 가능하다. This study is about the suitable of the media movie that was introduced to novel education of high school. The study consider a position of the movie media in novel education focused on Aimless Bullet . Comparative study about the media features of the novel and the movie has been addressed repeatedly in the preceding paper. Generally, it has something in common with previous studies. After presenting the differences and similarities in the beginning, and compare with novel text in textbooks. Previous studies have common problem. The thing with them is, these studies do not provide any educational effects can be expected that the introduction of the movie media in novel education. Thus, this study started with the objection on the universal discussion of others. It is true that introduction of visual media in literature education is nonetheless fit for the effectual communication. If so, critical media education should be preceded that is acceptable to learners. If no prior training, it is possible to add to the problematic situation of students losing interest in the written language. It is that defenceless students is exposed with practical visual media. If using the media language is a tool for enhancing more interest of class, dare not even need to deal with in the curriculum. However, this is not the purpose of taking the ‘media language’ into the novel education. Education officials should have to consider again for revive the spirit of the media language education in presented curriculm. The phenomenon that ‘media language’ is inserted for organizing materials fit for the digital age is problematic. There are gaps with training goals of literature education. <media language> is organized by the high school elective courses of native language education in curriculum revision 2007. However, <media Language> suddenly disappear from the curriculum revision 2009, the reason is estimated to be unrealistic field education. Meaning of that ‘unreality’ implies lots of things. First, the problem may be in the entrance examination-oriented education, or economic policy. Second, the leadership skills of front-line teachers in high school education. Third, it can be referred to the limitations of the capacity of learners completing the language course.