• 한국치위생학회지
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• 제15권3호
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• pp.363-369
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• 2015

Objectives: The purpose of this study is to investigate the cognition and practice of infection control in the dental hygienists. Methods: A self-reported questionnaire was completed by 220 dental hygienists in Busan and Gyeongnam from August 1 to 31, 2014. The questionnaire was adapted from Nam. The questionnaire consisted of four questions of the general characteristics of the subjects, two questions of infection control factors, four questions of clinic environment, 50 questions of awareness of infection control, and 50 questions of infection control practice. Cronbach's alpha in the awareness of infection control was 0.958 and that in infection control practice was 0.950. Results: The dental hygienists in the large scale hospitals tended to have higher score of cognition and practice of infection control thatn those in the small scale hospitals(p<0.001). Small scale hospitals tended to have lower infection rate than the large scale hospitals. The education for the infection control guideline reduced the infection prevalence rate. Conclusions: In order to reduce the infection prevalence rate, it is necessary to educate the dental hygienists continuously and to provide the infection control guideline to the dental clinics.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2013년도 춘계 종합학술대회 논문집
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• pp.361-362
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• 2013

As one of the steps toward understanding how the plant is well adapted to strongly saline habitats, the purple pigment compound that is accumulated in Suaeda japonica was extracted and characterized. The extracted pigment compound exhibited typical characteristics of betacyanin that were represented by water solubility, pH- and temperature-dependent color changes, sensitivity to light, UV-Vis spectra, and gel electrophoretic migration pattern. LC-MS of the extracted pigment compound showed the presence of two major protonated molecular ions ($[M+H]^+$) at m/z 651.1 and m/z 827.1. According to the DPPH assay, it was found to have an antioxidant activity that is linearly increased in proportion to the reaction time for up to 30 min, and the activity was comparable to that of control BHA at 9.0 mg/ml. The cytotoxic activity against several tumor cell lines was also examined following the MTT assay. The significant growth inhibitory effect was observed on two tumor cell lines, SW-156 (human kidney carcinoma) and HEC-1B (human endometrial adenocarcinoma). Probably, the pigment compound may function as an osmolyte to uphold halotolerant physiological processes in saline environment.

• Human Ecology Research
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• 제54권6호
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• pp.589-598
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• 2016

The study finds a constructive way to improve shared houses by analyzing shared house living conditions, satisfaction of the residents and potential consumer's needs. For this, a survey of 179 single-person university residents and interviews with seven young adults residing in shared house was conducted. The results showed that shared house tenants had high satisfaction in regard to bedrooms, common spaces, and rental costs. They successfully adapted to community life by frequently using the living, dining spaces, and common spaces with respect and consideration towards other tenants by following rules. Single-person university household should prefer single rooms and the biggest consideration when they move into a shared house is rent. Affordable rates were 300,000 to 350,000 Korean Won per month (40.5%) and deposit of 3 million won or less (64.3%). Results also showed a need for a professional manager residing in the house with a cleaning service for common spaces and a want to share hobbies with other tenants (3.25/5 point scale). It is very important in a housing welfare perspective that one experiences the value of living and emotional sharing to heighten the satisfaction through shared houses. It is essential to put effort into developing a service that reflects consumer's needs for shared houses to continue as a housing alternative model for young adults.

• Architectural research
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• 제24권4호
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• pp.93-103
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• 2022

In contemporary housing design, this cultural value has been ignored. Contemporary design has adapted quickly to global trends and houses have gradually lost their cultural identity (GhaffarianHoseini & Dahlan, 2012; Lim, 2001). Nevertheless, traditional housing culture persists in people's behavior and thoughts. Therefore, there is currently a pressing need to rebuild cultural identity in housing for cultural sustainability. This study aimed to analyze the traditional culture which was maintained, then transformed and disappeared in housing design through the quantitative survey and explore the cultural identity of Malaysian housing as a result. A quantitative survey was distributed to mothers of 129 married households living in a metropolitan area of Kuala Lumpur in August 2019. As a result, it was found that hosting guest was important even though the designated space (serambi) was disappeared. The LD/K layout, separating kitchen from living and dining area was philosophical and practical culture, still strong among older generation, but weakened among younger generation. To accommodate the traditional habit of diverse household work, wet kitchen, utility space for washing machine & drying, and outdoor space were needed to design carefully. When applied to future housing design, the findings will contribute to enhancing quality of life by strengthening residents' sense of place and social cohesion and by providing a culturally inherent design that eases the effects of globalization.

• 만화애니메이션 연구
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• 통권46호
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• pp.1-22
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• 2017

정보통신기술의 빠른 발전과 디지털콘텐츠 산업의 확대로 인해 관련 실용학문분야는 교육의 내용과 환경에서 새로운 패러다임이 요구되고 있다. 특히, 디지털콘텐츠 산업의 핵심 분야인 애니메이션 교육은 창의와 융합 그리고 실무교육이 중시되며 교육 내용과 방법에서 많은 개선이 시도되었다. 하지만, 기존 컴퓨터실 형태의 획일적 교육 공간은 애니메이션 교육특성을 충분히 반영하지 못하고 있는 실정이다. 이에, 본 연구는 애니메이션 분야 직무 역량과 애니메이션 프로젝트 제작의 특성이 반영된 효율적인 실습교육 공간 구성을 제안하고자 한다. 이를 위한 연구의 전개는 첫째, 기존의 애니메이션 교육공간의 한계점에 대해 사례를 통해 분석하고, 그 문제점을 도출한다. 또한, Pre-production, Main-production, Post-production의 세 단계로 구성된 애니메이션 제작의 작업적 특성과 순차적 업무에 따른 여섯 개 세부 직무의 역량에 대해 고찰한다. 둘째, 애니메이션 제작공간의 구성을 파악하기 위해 공간구문론을 차용한 6가지 공간 유형에 대해 고찰한다. 셋째, 애니메이션 제작특성, 세부직무역량 요소, 6가지 공간 유형을 분석 툴로 하여, 애니메이션 제작 스튜디오인 Walt Disney의 작업환경과 공간구성에 대해 사례분석을 진행한다. 다섯째, 문헌연구와 사례연구의 결과를 연계적으로 분석하여 애니메이션 프로젝트 진행을 위한 효과적인 교육 공간 구성의 특성을 도출한다. 본 연구를 통해 프로젝트 실무와 직무역량요소의 특성이 반영된 교육 공간 구성을 제시하는데 의의가 있으리라 사료된다. 또한, 본 사례분석을 통해 애니메이션 교육공간 구성을 일반화 하는데 한계가 있으나, 기존과 차별화된 프로젝트 교육 공간구성을 위한 참고자료로 활용가치가 있으리라 기대한다.

• Human Ecology Research
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• 제52권4호
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• pp.337-345
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• 2014

The purpose of this study was to examine the mediating effect of the adult attachment in the relationship between the family of origin functioning and fear of intimacy. Data were collected through a questionnaire from 557 university students in the Jeollabuk-do of South Korea. The collected data were analyzed by basic descriptive statistics, Pearson's correlations and multiple regression analysis. Baron and Kenny's method was used and examined, and the Sobel test was performed to determine the mediating model's significance. It was adapted to SPSS ver. 18.0 for Windows. The major findings were as follows: first, the functioning of family-of-origin was negatively related to the fear of intimacy. In addition, younger students and students with less past dating experience were more likely to fear of intimacy. Second, fear of intimacy was influenced by the family-of-origin through the intermediate effect of attachment avoidance and attachment anxiety. Attachment avoidance and attachment anxiety had partial mediating effects on the relationship between family-of-origin functioning and the fear of intimacy. That is, family-of-origin functioning was shown to have not only a direct effect, but also an indirect effect through attachment avoidance and attachment anxiety, on the fear of intimacy. The results of this study suggest that the importance of family-of-origin functioning in order to improve Korean college students' intimacy abilities.

• ALGAE
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• 제20권2호
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• pp.127-132
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• 2005

Algal growth potentials were probed by algal growth rates, maximal PSII quantum yields and ATP amount as well as dry weights of algae to evaluate the water fertility due to the algal growth in the stream (CT) and stagnant watershed (WW). Oscillatoria agardhii (CY) and Coelastrum reticulatum (CH) were cultured in nitrogen (N) and phosphorus (P) starvation media (CH-10 medium) and re-inoculated in CT and WW for 7 days. Cell division rates of CY were the highest (k = 7.5) in WW after N starvation, while those of CH were the hight (k = 2.97) in WW after P starvation. The growth of CY was limited by P, while that of CH was by N. Conversely, maximal PSII quantum yields of CH were generally higher than those of CY in CT and WW according to culture time. CY was much more sensibly adapted than CH according to the variations of nutrient amounts in WW. The water fertility was much higher in WW than in CT. The potential assessment tool for water fertility will be able to compensate for the limit of physio-chemical analyses and to be applied as a monitoring system to forecast red-tide.

• Environmental Engineering Research
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• 제17권3호
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• pp.139-144
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• 2012

In this study, the effects of starvation on floc characteristics when treating saline wastewater using a sequencing batch reactor (SBR) were investigated. The effectiveness over 5 days of starvation for aerobic and non-aerobic strategies for maintaining the physical characteristics of floc-forming sludge and the recovery period needed to regain the initial pollutant removal efficiency were investigated. Experiment results revealed that the sludge volume index (SVI) increased and the floc size and fractal dimension decreased after starvation under both aerobic and non-aerobic conditions. Sludge settleability deteriorated faster under aerobic conditions compared to non-aerobic conditions. Under non-aerobic conditions, the SBR required less time to return to its initial pollutant removal efficiency and settleability. Floc size, fractal dimension, and SVI were observed to be fairly correlated with each other. The results demonstrated that it was better to maintain the sludge under non-aerobic rather than aerobic starvation, because it adapted to, resisted starvation and had a quicker re-start afterward.

• 제어로봇시스템학회논문지
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• 제17권2호
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• pp.176-182
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• 2011

Industrial network, often referred to as fieldbus, becomes an indispensable component for intelligent manufacturing systems. Thus, in order to satisfy the real-time requirements of field devices such as sensors, actuators, and controllers, numerous fieldbus protocols have been developed. But, the application of fieldbus has been limited due to the high cost of hardware and the difficulty in interfacing with multi-vendor products. As an alternative to fieldbus, the Ethernet (IEEE 802.3) technology is being adapted to the industrial environment. However, the crucial technical obstacle of Ethernet is its non-deterministic behavior that cannot satisfy the real-time requirements. Recently, the EtherCAT protocol becomes a very promising alternative for real-time industrial application due to the elimination of uncertainties in Ethernet. This paper focuses on the implementation of the IEC 61800 based real-time EtherCAT network for multi-axis smart driver. To demonstrate the feasibility of the implemented EtherCAT slave module, its synchronization performance is evaluated on the experimental EtherCAT testbed with a single axis smart driver.

• 한국잡초학회지
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• 제30권3호
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• pp.206-214
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• 2010

The laboratory and green house studies evaluated the effect of three different environmental factors on the seed germination, seedling emergence and survival of four major weed species in coconut plantations, Mimosa pudica, Ureana lobata, Panicum maximum and Pennisetum polystachyon. Germination percentage of all the weed species was significantly reduced with increasing soil moisture stress, no germination was observed at -0.9 MPa. Germination of both grass seeds ranged from 8% to 25% and 10% to 45% as moisture stress decreased from -0.4 MPa to 0 MPa, respectively. In contrast, seeds of M. pudica, and U. lobata were moderately tolerant to soil moisture stress and best adapted to moist environment. All the weed species seeds germinated over a wide range of soil pH values with the highest germination occurring at pH 6. In all the species, seedling emergence was declined rapidly with increasing depth with the exception of U. lobata. Seedling emergence significantly declined when the duration of flooding was three days or longer in dicotyledonous weed species and two days or longer in monocotyledonous weeds. This study illustrates the adaptability of these weeds to different environmental conditions which would enable the development of management strategies to reduce their populations below economic threshold levels in coconut plantations.