수도권 거주환자의 구강건강인식과 그 연관요인

정의정 ( Ui Jung Jung ),김민영 ( Min Young Kim ) 한국치위생과학회 2007 치위생과학회지 Vol.7 No.4

성인 남성의 외모관리행동과 특성에 관한 연구

정의정(Ui-Jung, Chung) 한국인체미용예술학회 2011 한국인체미용예술학회지 Vol.12 No.2

Looks in mordern society is one of the important elements that I can reveal about myself. People spare no effort to get fine looking as appearance effects have a influence on social relationship and psychological stability. Decoration is no longer the exclusive property of the female so, beauty industry related to male has grown rapidly, for example, fashion, cosmetics, accessories, hair styling, skin care, fitness, plastic surgery, and so on. The sample group for this study is men in the age of 20’s to 50’s. The differences in group based on the demographic characteristics are related to age, educational backgroud, and income. Through this study, the following conclusions could be made: To find relation between general characteristics and characteristics towards managing external appearance, it was conducted cross-tabulations. There was a broad distinction in many articles as per age, income, and job. It was classified 4 types that are associated with correlation to grasp attitude towards appearance care. Pursuing fashion style, pursuing hair style, pursuing skin care, pursuing fitness. To find relation between 4 types and general characteristics, cross-tabulations was conducted. There was a broad distinction in many articles. This study proved that men consider their external appearance and adorn themselves variously. It will help collect basic data regarding males and sales assistants in the field of men’s wear and beauty industry.

평위산가미방(平胃散加味方)이 아토피피부염을 유발한 NC/Nga mouse에 미치는 영향

정의령,김윤범,Jung, Ui-Ryung,Kim, Yoon-Bum 대한한방안이비인후피부과학회 2011 한방안이비인후피부과학회지 Vol.24 No.2

Objective : To investigate the effects of Pyeongwi-san-gamibang on atopic dermatitis, this study measured TEWL(transepidermal water loss), observed scratching behaviors and checked levels of Total IgE, IL-4, IFN-${\gamma}$ and conducted skin biopsy on NC/Nga mice with atopic dermatitis. Methods : NC/Nga mice were challenged with DNCB during 5 weeks to develop atopic dermatitis-like skin lesions. The NC/Nga mice with atopic dermatitis were divided into three groups of control group, PW-d, PW-e group. Once a day for 22 days, Pyeongwi-san-GamiBang extract with water was administered for the PW-d group and the extract with 80% ethanol was administered for PW-e group compared with saline solution for control group. During drug administration, sensitization by DNCB had lasted for three times per week. Results : 1. TEWL had no statistical difference among 3 groups. 2. The scratching behaviors had no statistical difference among 3 groups. 3. The levels of Total IgE in PW-d, PW-e group had a statistically significantly higher than that of the control group although difference between the control group and the PW-d, PW-e group were similar. 4. The level of IL-4 had no statistical difference among 3 groups. 5. The level of IFN-${\gamma}$ had no statistical difference among 3 groups. 6. As the observation of toluidine blue stained lesion, both PW-d and PW-e group had lower level of histamine releasement compared with the control group. Conclusion : Result based on these experiments, Pyeongwi-san-GamiBang on atopic dermatitis-like skin inflammation in NC/Nga mice is not effective. But, as the study showed significantly individual differece, we need to repeat these study after supplementing the object number and modified indicator of clinical severity.

건물의 개구부 크기에 따른 외벽 수열온도분포에 관한 연구

정의인 ( Jung Ui-in ),홍상훈 ( Hong Sang-hun ),김봉주 ( Kim Bong-joo ) 한국건축시공학회 2020 한국건축시공학회지 Vol.20 No.3

본 연구는 공동주택의 화재 및 화재확산에 의한 피해의 예방과 대응마련을 위해 실내화재 조건에 대한 정확한 데이터 확보를 목적으로 실물화재실험을 재현하였다. 실험조건으로 개구부 크기를 다르게 하여 외벽 수열온도를 측정 및 분석하였으며, 다음과 같은 결과를 도출하였다. 개구부 크기를 2,000㎜, 1,600㎜, 1,400㎜로 실험하였을 때, 플래시오버는 각각 630초, 505초, 510초에서 일어났으며, 총 가열시간은 개구부 크기에 따라 815초, 713초, 721초로 나타났다. 개구부 크기에 의한 외벽 최고 수열온도는 2,000㎜에서 282.4℃, 1,600㎜에서 382.9℃, 1,400㎜에서 423.8℃로 나타나 개구부의 크기가 작아질수록 화재확산에 의한 외벽의 수열온도는 높아지는 것으로 나타났다. This study used a real-scale model experiment to reproduce internal fires in residential buildings such as a multi-dwelling unit, in order to prevent damage caused by tens of thousands of fires witnessed each year and to take measures to cope with them. For experimental conditions, different opening sizes were applied to measure and analyze the heating temperature of the exterior wall. Results drawn are as following: when the experiment was conducted with opening sizes(horizontal length) each at 2,000㎜, 1,600㎜, and 1,400㎜, the flashover occurred at 630 seconds, 505 seconds and 510 seconds, respectively. Also, the total heating time, in proportion to this, came to 815 seconds, 713 seconds and 721 seconds. The maximum heating temperature of the exterior wall by the opening size reached 282.4℃ at 2,000mm, 382.9℃ at 1,600㎜, and 423.8℃ at 1,400㎜. This represented that as the opening size gets smaller, the heating temperature of the exterior wall by fire spread becomes higher.

개구부 상부 차양설치 및 길이에 따른 외벽 수열온도분포에 관한 연구

정의인 ( Jung Ui-in ),홍상훈 ( Hong Sang-hun ),김봉주 ( Kim Bong-joo ) 한국건축시공학회 2020 한국건축시공학회지 Vol.20 No.4

본 연구는 매년 수만 건 발생되는 화재에서 화재확산에 의한 피해 예방과 대응 마련을 위해 공동주택 및 일반건물의 내부화재를 실물화재실험을 통해 재현하였다. 또한, 개구부 크기와 차양길이 조건을 달리하고 이에 따른 외벽온도 분포를 분석하여 화재확산방지 기초자료를 제공하고자 하였다. 실험결과, 차양을 설치하지 않았을 때 최고온도는 약 380℃ 이상으로 나타났다. 차양을 설치하지 않은 최고온도를 기준으로 차양길이가 150mm 일 때, 동일한 측정점에서 약 90℃가량 낮아졌으며, 300mm에서 약 150℃ 이상, 450mm에서 175℃ 이상 온도가 낮아졌으며, 차양길이 600mm 일 때, 최고온도 차는 약 180℃ 이상 낮아지는 것으로 나타나 개구부 상부의 차양 설치가 외벽의 수직화재 확산에 의한 화염온도를 낮추는데 효과가 있는 것으로 판단된다. This study used a real-scale model experiment to reproduce internal fires in residential buildings such as a multi-dwelling unit, in order to prevent damage caused by tens of thousands of fires witnessed each year and to take measures to cope with them. For experimental conditions, different opening sizes were applied to measure and analyze the heating temperature of the exterior wall. Results drawn are as follow : On top of this, the experimental conditions had whether to install shading and put a shading length differently, before measuring and analyzing the heating temperature of the exterior wall. Subsequent results were drawn as shown below. Based on the maximum temperature, the temperature was lowered as much as around 90℃ at 150mm, around 150℃ or over at 300mm and over 175℃ at 450mm. It also turned out that the difference in maximum temperature dropped by around 180℃ or over. This indicated that the shading installation works well in lowering flame temperature generated by fire spread of the exterior wall.

굴 패각의 조립률 및 양생방법에 따른 강도특성에 관한 연구

정의인 ( Jung Ui-in ),홍상훈 ( Hong Sang-hun ),유남규 ( You Nam-gyu ),송승리 ( Song Seung-li ),김봉주 ( Kim Bong-joo ) 한국건축시공학회 2018 한국건축시공학회 학술발표대회 논문집 Vol.18 No.1

Oyster shell is produce by shucking process in oyster farming in southern coast of Korea. In average, about 6.7kg of oyster shell is produced as an industrial waste for 1kg of oyster flesh, and even only in last year, it is estimated that about 150,000 ton of oyster shell is produced. Oyster shell is light weighted and the strength characteristic of it is similar to send. So we produced mortar test piece using grounded oyster shell according to aggregate and reviewed strength characteristic. Therefore, in this study, the strength characteristics of the test specimen are evaluated by artificially altering fineness modulus and curing method by processing oyster shells.

유닛 커튼월 프로파일 형상 변화에 따른 구조 성능 검토에 관한 연구

정의인 ( Jung Ui-in ),홍상훈 ( Hong Sang-hun ),김해나 ( Kim Hae-na ),박준서 ( Park Jun-seo ),김봉주 ( Kim Bong-joo ) 한국건축시공학회 2023 한국건축시공학회 학술발표대회 논문집 Vol.23 No.1

The unit curtain wall is an exterior finish currently used on the exterior walls of high-rise buildings. Although the structural impact is not significant due to the non-strength wall, in the case of the unit curtain wall to which the factory manufacturing method is applied, deformation of the profile may occur according to its own weight. Therefore, in this study, stability is evaluated through design standard calculation applied when finishing the outer wall according to the design shape of the unit curtain wall profile.

유닛 커튼월 프로파일 형상에 따른 단열성능에 관한 연구

정의인 ( Jung Ui-in ),홍상훈 ( Hong Sang-hun ),김해나 ( Kim Hae-na ),박준서 ( Park Jun-seo ),김봉주 ( Kim Bong-joo ) 한국건축시공학회 2023 한국건축시공학회 학술발표대회 논문집 Vol.23 No.1

The unit curtain wall is an exterior finish currently used on the exterior walls of high-rise buildings. Curtain walls used as non-endurance walls are largely classified into stick curtain walls and unit curtain walls, and their use has recently been on the rise to reduce risks at construction sites through factory manufacturing. Accordingly, this study attempted to examine the insulation performance according to the shape of the unit curtain wall profile through insulation simulation.

굴 패각을 잔골재로 사용한 모르타르의 물시멘트비에 따른 강도특성

정의인 ( Jung Ui-in ),최인권 ( Choi In-kwon ),허민회 ( Heo Min-hoe ),김봉주 ( Kim Bong-joo ),원철희 ( Won Chul-hee ),최호림 ( Choi Ho-rim ) 한국건축시공학회 2016 한국건축시공학회 학술발표대회 논문집 Vol.16 No.2

Oyster shell is light weighted and its strength characteristic is similar to sand. So we produced mortar test piece using grounded oyster shell powder under 0.5mm, which is a standard of fine aggregate, and reviewed strength properties according to water cement ratio. In our test, we used two kinds of oyster shell particles: below 0.6㎜ and 1.2~2.5㎜. Water cement ratio is varied 40% to 100% and we found that flexural strength and compressive strength are decreased in higher water cement ratio.

굴 패각을 잔골재로 활용한 내화모르타르의 잔존강도 특성

정의인,김봉주,Jung, Ui-In,Kim, Bong-Joo 한국건축시공학회 2017 한국건축시공학회지 Vol.17 No.5

본 연구는 산업폐기물로 발생되는 굴 패각을 세척, 건조 및 가공하여 3개의 입도범위로 분급하였다. 이를 이용해 일정한 비율로 잔골재를 대체한 모르타르 실험체를 제작하였으며, 28일 재령을 기준으로 $300^{\circ}C$, $600^{\circ}C$, $900^{\circ}C$의 가열조건에 의해 실험체를 가열하였다. 재령 28일에서 Plain 휨 강도는 9.2MPa로 나타났으며, O 0.15에서는 대체율에 따라 7.9~4.4MPa로 나타났다. O 1.2~2.5에서는 대체율에 따라 7.7~4.4MPa으로 나타났으며, 마지막으로 O 2.5~5.0의 경우에는 대체율에 따라 8.8MPa,~6.1MPa로 나타났다. 재령 28일 압축강도의 경우, O 0.15에서는 대체율에 따라 23.6~43.2MPa의 차이를 나타냈으며, O 1.2~2.5에서는 대체율에 따라 20.4~45.1MPa의 차이로 나타났고, 마지막으로 O 2.5~5.0의 경우 17.1~40.4MPa의 차이가 나타났다. 가열을 통해 잔존강도를 측정한 결과 굴 패각 잔골재 O 0.15 이하를 100% 대체한 경우 강도감소율이 가장 낮은 것으로 나타났으며, 이러한 결과를 통해 굴 패각의 가공 및 적정 배합을 통한 내열성능 발휘가 가능할 것으로 예상된다. This study classified oyster shells that produced as a industrial waste into 3 distribution by washing, drying and processing them. Mortar specimens with a constant ratio by using this to substitute fine aggregates were made, and the specimens were heated under the heating conditions of $300^{\circ}C$, $600^{\circ}C$ and $900^{\circ}C$ based on the 28-day age. On the age of 28 days, the plain flexural strength was found to be 9.2MPa, and in O 0.15, it was shown to be 4.4~7.9MPa depending on the substitution rate. It was found to be 4.4~7.7MPa in O 1.2~2.5 depending on the substitution rate, and last but not least, it was shown to be 6.1~8.8MPa in case of O 2.5~5.0 depending on the substitution rate. In case of the compressive strength of the 28-day age, it showed the difference of 23.6~43.2MPa in O 0.15 depending on the substitution rate, and 20.4~45.1MPa in O 1.2~2.5 depending on the substitution rate, and last but not least, 17.1~40.4MPa in case of O 2.5~5.0. As a result of measuring the residual strength through heating, in case of substituting fine aggregates less than O 0.15 by 100%, it showed the lowest strength reduction ratio, and it is expected that the heat-resisting property could be achieved through processing and proper mixing of oyster shells through these results.