Air Pressure Regulation in Air Bladders of Ascophyllum nodosum(Fucales, Phaeophyceae)

강은주,Brackenbury, Angela M.,Kang, Eun-Ju,Garbary, David J. 한국조류학회(藻類) 2006 ALGAE Vol.21 No.2

Diurnal and age-related changes in air pressure were measured in air bladders of Ascophyllum nodosum from the Atlantic coast of Nova Scotia. Exterior and interior bladder volumes vary significantly with 4 and 6 y bladders being about 40% larger than 2 y bladders (p < 0.01). Freshly collected bladders yielded a mean pressure of 40.8 ± 6.5 cm H2O. Overnight (20 h) dark treatment at 15°C generated pressure reductions by 80% in 2 y bladders but only by about 30% in 4 and 6 y bladders. Furthermore, in 2 y bladders 8 out of 11 bladders were reduced to atmospheric pressure. Pressure losses were inversely related to pressure recovery after 2.5 h in natural daylight, but after 5 h in daylight there was no significant difference in pressure within the age groups. Even under 25% of full illumination, bladders inflated to full pressure after 5 h. The results show that differences in bladder age and bladder wall thickness have roles in diurnal patterns of bladder inflation and deflation. These results confirm that bladder inflation is based on photosynthetic O2 production and not on partial pressures of O2 in the surrounding medium as was suggested for Sargassum. Chemical analyses of fluid recovered after the interior of bladders were washed with saline showed no evidence for the occurrence of surfactant that might be responsible for maintaining the air-liquid interface.

치과 의료종사자의 개인보호장구 착용에 대한 보건계열 대학생의 인식

강은주,최미혜,Kang, Eun-Ju,Choi, Mi-Hye 한국치위생학회 2011 한국치위생학회지 Vol.10 No.2

Objectives : This study was performed to enhance infection control and to establish the fundamental and practical improvement by the survey on personal protection of dental personnels with health science college students. Methods : We performed the survey with 585 individual students affiliated with health science in Jeonbuk province and statistically analyzed by SPSS 12.0 program. Results : The frequencies of the clinic gown as a personal protection were 96.0% of dentists (p<0.01) and 88.0% of dental hygienists (p<0.05) respectively in college-associated dental hospital when we compared with institution scale. The frequencies of the medical gloves as a compulsory personal protection were 47.2% of dentists and 34.6% of dental hygienists respectively (p<0.001). The frequencies of the medical mask as a compulsory personal protection were 84.0% of dentists (p<0.001) and 52.2% of dental hygienists (p<0.05) respectively shown by freshman students. The frequencies of the safety glasses as a compulsory personal protection were 12.3% of dentists and 2.5% of dental hygienists shown by freshman students (p<0.001). Conclusions : The results reflect that current dental personnel's concern of personal protection need to be increased continuously in accordance with current demands and eventually suggest their effort to put their action on personal protection in their dental office.

아르누보의 특성을 활용한 아트 마스크 융합디자인 연구 -구스타프 클림트 작품을 중심으로-

강은주,박리라,Kang, Eun-Ju,Park, Li-La 중소기업융합학회 2021 융합정보논문지 Vol.11 No.9

본 연구는 아르누보의 특성을 활용한 아트 마스크 디자인 제안이다. 선행연구를 바탕으로 아르누보의 특성을 곡선적 표현, 여성적 표현, 자연주의적 표현, 반복적 표현으로 분류하였으며 각 특성에 따라 아르누보의 대표화가 구스타프 클림트의 작품을 4점 선정하였다. 선정된 작품을 모티브로 아트 마스크에 리디자인하였으며 작품 제작에 따른 결과로는 첫째, 아르누보의 특성을 아트 마스크에 디자인 할 수 있는 가능성과 방법론을 모색하였다. 둘째, 아트 마스크에 표현될 수 있는 범위와 방식을 넓혀 다양한 소재에 따른 접근성을 높였다. 셋째, 아트 마스크와 미술사조의 융합은 아트 마스크의 작업 조건에 충분했다. 이러한 연구결과를 토대로 향후 아트 마스크에 표현될 수 있는 소재가 무궁무진해지길 바라며 메이크업 분야로서 아트 마스크의 위상이 더욱 높아지길 기대해본다. This study is a proposal for art mask design through the use of Art Nouveau. Based on precedent studies, its characteristics have been divided into a curvy expression, feminine expression, naturalism expression, and a repetitive expression. The four pieces by Gustav Klimt, a signature artist of Art Nouveau, have been selected. With the motif from them, the art masks were redesigned and the following results have been obtained. First, the study sought out a possibility and the methodologies to apply Art Nouveau to the art mask design. Second, the study has improved the accessibility to materials by increasing the scopes and methods of the art masks. Third, an integration of the art masks with the art history has provided a suitable condition for them. Based on such study results, it is expected that art mask materials could be developed and their status, as a field of makeup, could be raised.

일부 중금속과 제초제에 대한 저서규조류 Nitzschia sp.의 광합성 반응

강은주,최태섭,김광용,Kang, Eun-Ju,Choi, Tae-Seob,Kim, Kwang-Young 한국조류학회(藻類) 2007 ALGAE Vol.22 No.4

This study was conducted with using chlorophyll a fluorescence (indicated as photosynthetic activity) to examine the toxic effect of 96 h exposure of heavy metals and herbicides on the benthic diatom Nitzschia sp. which was isolated from pristine sediment in Pamquat Harbour, Nova Scotia, Canada. Samples of benthic diatom were exposed to 0, 0.01, 0.1 and 1 mg L?1 of copper, 0, 1, 10 and 100 mg L?1 of chrome (VI), 0, 2.45, 24.5 and 245 mg L?1 of paraquat dichloride, and 0, 4.37, 43.7 and 437 mg L?1 of alachlor during 96 hours. The effective quantum yield of photochemistry (ΔF/Fm’) was evaluated by subjecting light acclimated samples to saturating pulses of light using a pulse amplitude modulated (PAM) fluorometer. The impact of heavy metals on Nitzschia sp. photosynthesis was not severe in < 1 mg L?1 but in the high concentrations (> 1 mg L?1) clearly increased toxic stress during 96 h. Herbicides had a limited impact during the exposure period but clearly increased stress on the benthic diatom with increasing concentrations. Acute response of Nitzschia sp. to selected heavy metals and herbicides was characterized, and the capacity of a benthic diatom to tolerate and recover from toxic stress was assessed.

성격과 학습동기 및 학습유형이 전공만족도에 미치는 영향: 음악 전공생을 대상으로

강은주 ( Eun Ju Kang ),임규혁 ( Kyu Hyeok Im ),한주희 ( Ju Hee Hahn ) 한국예술교육학회 2010 예술교육연구 Vol.8 No.2

본 연구는 음악전공 학생들의 전공만족도를 결정하는 요인으로 성격과 학습동기, 학습유형의 영향력을 살펴보고자 하였다. 연구를 위하여 예술고등학교에 재학 중인 음악 전공학생 380명을 대상으로 설문조사를 실시하였으며, SPSS 17.0과 AMOS 7.0을 사용하여 구조방정식 모형을 검증하였다. 감정 성향은 외재적 동기보다 내재적 동기를 높이는 것으로 나타났다. 또한 내재적 동기는 외재적 동기에 비하여 수용형과 탐구형 학습유형을 높이는 것으로 분석되었다. 마지막으로 수용형 학습유형보다 탐구형 학습유형이 전공만족 정도를 높이는 것으로 나타났다. 본 연구는 성격에 따라 학습동기가 영향을 받으며, 학습동기 및 학습 유형에 따라 전공만족도가 다르게 나타남을 검증하였다 이러한 연구결과를 바탕으로 할 때, 학생 개인의 특성에 따라 동기 및 학습 유형이 다르게 나타남으로 이에 따라 학습 지도 방법을 다르게 해야 할 것이다. 그리고 수용형 학습유형이 탐구형 학습유형보다 전공만족도를 높이는 것으로 나타났다. 즉, 음악 전공생들을 지도할 경우, 학생들이 수용형 학습 유형을 가질 수 있도록 음악 전공생을 지도해야 할 것으로 생각된다. The purpose of thins research investigates the relationship among characteristic and learning motivation, learning style and major satisfaction. In this research, 380 students in the high school of art completed the questionnaires and SPSS 17.0 and AMOS 7.0 were employe. The findings are: Firstly, introversion increases extrinsic motivation. Secondly, Feeling increases intrinsic motivation more than extrinsic motivation. Third, intrinsic motivation increases accommodation learning style more than assimilation learning style. Finally, major satisfaction is increases by accommodation learning style. Based on these results, when, to lead students, teachers should consider student`s characteristic. Major satisfaction is increased by accommodation learning style more than assimilation learning style.

열 현상에 대한 초등학생들의 개념 분석

강은주(Eun-Ju KANG),박종호(Jong-Ho PARK),백남권(Nam-Gwon BACK),박강은(Kang-Eun PARK),조태호(Tae-Ho JO) 한국수산해양교육학회 2019 水産海洋敎育硏究 Vol.31 No.6

광고메이크업에 나타난 팜므 파탈(Femme Fatale)이미지 - 향수광고를 중심으로 -

강은주 ( Kang Eun-ju ) 한국디자인트렌드학회 2010 한국디자인포럼 Vol.27 No.-

인간은 아름다워지고자 하는 미적 욕구를 인체를 통해서 표출하고 있다. 특히 메이크업은 인간의 미의식이 반영된 것으로 인간의 내면적인 욕구를 표현하는 한 방법으로 사용되고 있는데, 메이크업을 통해서 성에 관한 기본 욕망과 함께 미를 추구하게 된다. 결국 성적 특징이 미의 개념에서 중요한 위치를 차지하게 되고, 이러한 에로티시즘의 표현은 오늘날 에로티시즘 표현 광고로 나타나고 있다. 특히 개인의 분위기와 취향 등 이미지에 따라 달리 선택하는 개성적인 품목임과 동시에 향을 통한 성적 매력 추구라는 목적을 가진 향수광고에서 보여 지는 에로티시즘은 19세기 문학과 회화에 나타난 팜므 파탈의 이미지와도 밀접한 연관이 있는 것으로, 본 연구는 향수광고에 나타난 팜므 파탈 이미지를 중심으로 메이크업의 유형을 신비로운 이미지, 선정적 이미지, 잔인한 이미지로 나누고 그 특징들을 살펴보았다. A human expresses the aesthetic desire to become beautiful through the human body. In particular, the human`s aesthetic consciousness is reflected on the makeup, and it is used as a way of expressing the internal desire in the human. But, it comes to pursue the beauty together with the basic desire about the sex through the makeup. After all, the sexual characteristics take important position in concept of beauty. This expression of eroticism is expressed by the advertising of eroticism expression today. In particular, the eroticism, an item with the personality selected contrary to the images like the private atmosphere and taste as well as one with the purpose pursuing the sexual attraction through the perfume in the perfume advertising, is closely connected with the Femme Fatale image shown in the literature and painting in the 19th century. This study was to divide the makeup patters into mysterious image, sensual image, cruel image centered on the Femme Fatale image shown in the perfume advertising, and investigate the characteristics.

친환경인증학교의 생태면적률 실태분석에 관한 연구

강은주(Kang, Eun-Ju) 한국교육시설학회 2009 敎育施設 Vol.16 No.2

Biotope area rate and ecological environment planning for school campuses are closely related, and we can say that ecological environment of a school that has high biotope area rate is of high ecological value. Taking that into account, in this paper, we are going to have a look at the relationship between the elements of ecological environment plan for environment-friendly schools and the biotope area rate, and we are going to come up with a method how we can increase ecological value of ecological environment and biotope area rate in a school campus through analyzing the actual biotope area rate of certified environmental-friendly schools.

학교시설의 생태계획요소 실태분석에 관한 연구

강은주(Kang, Eun-Ju),조진일(Cho, Jin-Il) 한국교육시설학회 2010 敎育施設 Vol.17 No.4

In this paper, a current condition analysis of a certified environmentally-friendly school and a school forest demonstration school was made to understand how they have developed effective ecological environments and examine their specific technical methods for ecological planning. After taking into account the differences and current situations of the two types of schools this paper will present an effective method for the suitable implementation ecological environmental projects in domestic schools.

치과위생사의 방사선 안전 관리 실태 및 피폭 불안감 인식

강은주 ( Eun Ju Kang ),형주희 ( Ju Hee Hyeong ) 한국치위생과학회 2015 치위생과학회지 Vol.15 No.2

This study intends to improve the radiation safety management and the recognition for handling radiation using structured questionnaires to dental hygienists working at Jeollabuk-do from September 1 to October 31 in 2014. As a result, 63% of respondents have not received education for radiation safety management. Moreover, the practical degree for radiation safety management was 2.58±1.11, while the degree of knowledge was 3.74±0.83 of total 5.0. The results of insecurity for radiation danger were high as 3.88±0.92, and insecurity for fetus during pregnancy shows the highest value as 4.43±0.71. From the results of statistical significance level, the knowledge degree of radiation safety management is affected by total numbers of radiograpy for a day (p<0.05), and the practical degree of radiation safety management is affected by age group, academic background, monthly income, continuous service year, practice area, present position, and status of radiography in present (p<0.05). In addition, the knowledge degree of radiation safety management have a negative correlation (r=-0.232) with the practical degree, but have a positive correlation (r=0.262) with the insecurity for radiation danger. The high knowledge degree of radiation safety management (b=0.252, p<0.001) and the short radiography work period (b=-0.341, p<0.05) were the influential factors to the insecurity for radiation danger. Consequently, countermeasures are necessary to encourage dental hygienists to put their radiation safety management knowledge into the practice and to reduce the insecurity degree for radiation danger. Furthermore, it is important to prevent psychological and physical risks by radiation exposure through the improvement of radiation safety management level and recognition for handling radiation to improve medical environment.