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      • KCI등재

        개질한 지르코니아를 함유한 열경화성 액정 에폭시의 열분해 거동

        문희정,조승현,Moon, Hee Jung,Cho, Seung Hyun 한국섬유공학회 2016 한국섬유공학회지 Vol.53 No.4

        In this study, liquid crystalline thermosetting epoxy resin (LCTER) was synthesized with 4,4'-diglycidyloxy-${\alpha}$-methylstilbene and sulfanilamide as a basic resin and curing agents, respectively. Following the synthesis, the LCTER composite was fabricated using modified zirconia as a filler. To investigate the thermal behavior of the LCTER composites, a thermogravimetric analysis of the LCTER composites was recorded on temperature difference, with a filler content of 0.5-5 wt% of modified zirconia. The activation energy for the thermal decomposition was calculated using the Kissinger and Flynn-Wall methods. It was found that the activation energies of LCTER composites were proportional to the amount of modified zirconia used in the composites.

      • KCI등재후보

        웹툰에서의 3D컴퓨터그래픽스 적용에 관한 연구

        문희정,Moon, Hee Jeoung 한국스마트미디어학회 2015 스마트미디어저널 Vol.4 No.3

        '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

        최근 컴퓨터그래픽스는 실사에 가까운 표현이 가능하게 되었다. 하지만, 2D 컴퓨터그래픽스 고유의 느낌을 선호하는 면도 없진 않다. 2D 컴퓨터그래픽스와 3D 컴퓨터그래픽스의 합성 작업은 이미 오래전부터 제작되어왔다. 하지만, 기술적인 차이로 한계를 넘지 못하거나 실사 2D에 가상의 3D 컴퓨터그래픽스가 도입되거나 2D 컴퓨터그래픽스에 이펙트 등 효과가 3D 컴퓨터그래픽스 작업을 통해 제작되어 왔다. 최근에는 웹툰 등 2D 컴퓨터그래픽스로 작업하면서 시간적으로 좀 더 제약을 많는 콘텐츠 등에 2D 컴퓨터그래픽스로 작업한 느낌을 살리면서 카메라 앵글이나 시공간적인 장면 전환이 용이한 요소를 3D컴퓨터그래픽스로 작업하여 작업의 효율을 높이는 경우가 있다. 실제 작업을 통해 적절한 방향을 제시해보고자 한다. Recently, computer graphics has made possible a close representation of the due diligence. But, prefer the feel of a 2D computer graphics. 2D computer graphics and compositing of 3D computer graphics have already been produced for a long time. But, the virtual 3D computer graphics application in 2D image or live-action have been used to effect expression of a 2D computer graphics. Recently, 2D computer graphics content is being expanded through the cartoons. In some cases increase the efficiency by making a 3D computer graphics on the camera angle or temporal and spatial part. Through practical work and want to present the proper direction.

      • KCI등재
      • KCI등재

        전문대학 항공서비스 전공 신입생의 대학생활적응 척도 개발및 타당화 연구

        문희정 (사)한국관광레저학회 2018 관광레저연구 Vol.30 No.11

        The purpose of this study are to describe the process for development of the College Adjustment Scale, which reflected cultural characteristics of freshman majorimg in Airline Service and to analyze the technical qualities of the test. For these purposes , the study extracted the sub-factors of college adjustment and developed questions. In addion, contents validity was reviewed with experts, and the preliminary scale was validated by verifying the validity and reliability through exploratory factor analysis and confirmatory factor analysis for the data of survey of two times. The result of exploratory factor analysis , the scale messured the 6 sub-factors of academic activities(11items), personal psychology(7items), department regulation (6items), qualification for major(5items), social adaptability(4items), and relationship with seniors(3items). The Cronbach’s α of the subscale was good, from .833 to .931. The fit indices from confirmatory factor analysis presented the instrument supported the conceptual model of this study. lastly, proposals reflecting these results and implications for follow-up research were proposed.

      • 치과위생사의 근골격계통증관리에 관한 연구

        문희정 대한치과위생학회 2007 대한치과위생학회지 Vol.9 No.1

        The purpose of this study was to examine the musculoskeletal pain management of dental hygienists in a bid to pave the way for the development of programs geared toward letting them lead a healthier life at work. The subjects in this study were dental hygienists who worked in dental hospitals and clinics in Seoul and Gyeonggi province. A survey was conducted by visiting them from July 9 through August 24, 2007. The findings of the study were as follows: 1. Concerning the state of musculoskeletal pain, 41.3 percent of the dental hygienists investigated felt that pain before they started to work as dental hygienists, and 94.2 percent suffered that pain after that. 2. As to the cause of musculoskeletal pain, treatment posture(67.5%) was cited as the cause, and another cause was that they had to stand for a long time(23.5%). 3. After they worked at dental hospitals or clinics, they felt significantly more musculoskeletal pain in the neck(p<.05) and on the shoulder(p<0.01), and they had a backache significantly more as well (p<0.01). 4. As for the way of handling the pain, the largest group(33.6%) just bore with it. The second greatest group took physical therapy(26.3%), followed by Oriental medical treatment(14.7%), selftreatment(14.3%) and drug intake(8.5%). 5. Regarding connections between musculoskeletal pain experience and life adjustment, those who had ever felt that pain after starting to work in dental hospitals or clinics(3.44±.667) were less adjusted to daily routine life than the others who hadn’t(4.00±.667)(P<0.05). And the former fitted into their workplaces less(3.09±.568) than the latter. The gap between the two was statistically significant(P<0.01). 6. The dental hygienists who suffered pain due to the repetitive use of the body(2.98±.854) were less adjusted to daily routine life and work than the others who didn’t(3.73±.767)(P<0.001). 7. As for correlation between the pain experience and difficulties at work and in daily life, those who felt the pain found it hard to take care of their work, and were aware of the necessity of health checkup. But the pain experience didn’t have a close correlation to their awareness of the necessity of health checkup(P<0.01). The dental hygienists who faced difficulties in daily life found it hard to handle their work as well, and those who were cognizant of the necessity of vocational health education were more in want of education about how to alleviate the pain. There was a strong correlation between their awareness of the necessity of vocational health education and their need for education about how to ease the pain. 8. In regard to health checkup, 48.8 percent underwent a health checkup once a year at work. 37.8 percent had never done it on a regular basis, and 90.7 percent felt the need for that.

      • 치위생과 졸업예정자의 취업인식에 관한 연구

        문희정,김경희,최은영 대한치과위생학회 2006 대한치과위생학회지 Vol.8 No.1

        The purpose of this study was to examine the awareness of dental hygiene seniors about collegecurriculum and employment as prospective professional workers in the field of dentistry in an attempt toexplore how their employment could be boosted and facilitated. The subjects in this study were dentalhygiene students who were scheduled to graduate from a three-year-course college around Seoul. Asurvey was conducted for about three months from August through October 2006, and the answersheets from 226 students were gathered. Out of them, 190 answer sheets were analyzed with SPSS 12.0program. After statistical data on frequency and percentage were obtained, t-test was carried out. Thefindings of the study were as follows;1. 85.8 percent of the students investigated attended the college due to the strong possibility of getting ajob, and 89.5 percent chose the department for the same reason. 53.7 percent decided to choose thecollege and department at their own option.2. As for their experiential perception of college education, college education was considered to beconducive to raising social status(57.4%), guaranteeing a large income(81.5%), the pursuit oflearning(35.3%), and building up morality and citizenship(42.1%).3. A practical curriculum(74.2%) was viewed as most important for employment, followed by fieldpractice(62.6%), job seminar(71.6%), employment programs(75.8%), career counseling(75.3%),publicity activities (74.2%) and help-wanted/job hunting information system (74.7%). 71.5 percentfound it necessary to be connected to working graduates, and 74.2 percent asked for career guidanceby professors.4. Concerning their satisfaction level with college education related to employment, the satisfaction rateswith practical curriculum, field practice, job seminar, career counseling, publicity activities, help-wanted/ job hunting information system, connections with working graduates and career guidance byprofessors respectively stood at 81.6 percent, 81.0 percent, 34.8 percent, 28.5 percent, 35.4 percent,40.1 percent, 27.4 percent and 53.8 percent. 5. Regarding their post-graduation career plans, 91.6 percent wanted to work at dental hospitals orclinics, and 3.7 percent hoped to get other kinds of jobs. 2.6 percent planned to transfer to auniversity. As to preferred workplace, dental hospitals, university dental hospitals and dental clinicswere preferred by 23.2 percent, 19.4 percent and 7.9 percent respectively.6. As for their employment-related priority, they took social status, economic compensation,interpersonal relations, welfare benefits, commuting distance and commuting time into account, andtheir priorities were statistically significantly different(*p<0.05, **p<0.01).

      • KCI등재

        빅데이터를 위한 데이터 시각화 방법과 표현 연구(광주 대중버스노선 이용 실태를 적용한 태블루를 활용한 시각화 표현)

        문희정 (사)한국스마트미디어학회 2019 스마트미디어저널 Vol.8 No.1

        The importance of data is increasing at a high rate as data is massively generated and taken into account invarious policy supports and contents. However, because of their speed of growth, it is difficult to find the data thatis needed. Both the methodological elements that summarize the data and the technical elements of the visualizationthat help to see at a glance are important. This paper summarizes data visualization methods to improve thecurrently used design - oriented infographics and propose data - centric infographics. In addition, we will presentexamples of data analysis and infographics production using Tableau Public. The Gwangju metropolitan city bususer data was used for infographics production, and the results show that the total number of passengers usingthe stopping point is similar to that of the general passengers, while it is different from the numbers of transitpassengers and teen riding-and-transit passengers. Data-centric infographics visualization, unlike existinginfographics that is pronounced only as a visual role, is expected to be used as a tool for scientific research aswell as efficiently delivering data 하루가 다르게 방대한 데이터가 생겨나고, 데이터를 반영한 정책지원이나 콘텐츠들이 증가하면서 데이터에 대한 중요성이주목받고 있다. 데이터의 시각화 측면에서 모든 데이터를 살펴보는 것에 제약이 따르기 때문에, 시각화의 기술적인 요소뿐만아니라 데이터를 요약하고, 이해하기 쉽도록 돕는 시각화의 방법론적 요소가 중요하다고 할 수 있다. 본 논문에서는 현재 많이 사용되는 디자인 중심의 인포그래픽을 개선하고 데이터 중심의 인포그래픽을 제안하기 위해 데이터 시각화의 표현 방법을 정리하고, 시각화의 방법을 Tableau Public을 활용하여 데이터 분석 및 인포그래픽 제작사례를 제시고자 한다. 인포그래픽 제작을 위해 광주광역시 버스 이용자 데이터가 사용되었고, 분석결과 정류소 사용 총 승객수는 일반승객수와는 유사한 결과를 보이지만 환승역 이용 승객, 청소년 승차·환승 승객수에 따른 정류소와는 차이를 보였다. 그래프 유형에 따라 시각적인 결과는 다르게 도출되었다. 데이터 중심의 인포그래픽 시각화는 기존의 인포그래픽의 시각적인 역할만 강조한 것에 비해 데이터를 효율적으로 전달하는 것을 물론 과학적 연구를 위한 도구로 활용될 것으로 기대한다

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