• 인터넷정보학회논문지
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• 제16권3호
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• pp.95-104
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• 2015

최근 스마트폰 사용자들이 급격히 증가함에 따라 다양한 사회적 문제점들이 발생되고 있다. 대표적으로, 과도한 스마트폰의 사용과 잘못된 이용습관은 '스마트폰 중독(smartphone addiction)'과 '스마트폰 질병(smartphone disease)'과 같은 새로운 사회적 문제점들을 야기시키고 있다. 본 연구에서는 이러한 문제들을 사전에 예방하기 위해 스마트폰 사용자의 패턴을 방향센서를 이용해서 수집하고 분석해서 스마트폰 중독 및 질병을 예방하는 시스템을 제안한다. 제안된 시스템은 사용자의 스마트폰 사용형태와 사용시간을 실시간으로 분석하여 위험수준에 도달하였을 경우, 사용자에게 이를 알려 줌으로써 사용자 자신이 사전에 위험을 인지할 수 있도록 하며, 자신의 의지로 스마트폰 사용을 절제하도록 하여 스마트폰 중독 및 질병을 사전에 예방할 수 있도록 제안한다.

• 지질공학
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• 제27권2호
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• pp.153-164
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• 2017

지반 함몰 위험성에 대한 지질학적 인자는 매우 다양하다. 어떠한 지질학적 요인 또는 외부적인 영향에 의해 영향을 받을 수 있으며 동일한 지질학적 요인 내에서도 여러 가지 다른 물성값에 의해 지반함몰 영향인자가 결정될 수 있다. 다수의 논문 및 연구사례를 검토 한 결과 크게 7가지 범주의 지반함몰 요인이 있음을 알 수 있었다. 공동의 존재 여부에 따라 상재하중의 심도 및 두께가 지반침하에 영향을 줄 수 있고, 토사와 암반으로 구성된 지반에서는 그 경계면의 심도와 배향이 지배적 요소이다. 이 중 토사지반에서는 좀 더 다양한 영향인자로 구성이 되어있는데 토사의 종류, 전단강도, 상대밀도 및 다짐도, 건조단위중량, 함수비, 액성한계가 그것이다. 암반지반에서는 암석의 종류와 주 단열과의 거리 및 RQD가 영향인자로 구성될 수 있으며 수리지질학적 측면에서 접근했을 경우 강우 강도, 하천과의 거리와 심도, 투수계수 및 지하수위 변동이 영향을 줄 수 있다. 외부적인 요소도 지반함몰에 영향을 줄 수 있는데 굴착심도와 흙막이 벽과의 거리, 굴착공사 시 지하수 처리공법, 하수관로 등 인공시설물 존재 유무 등이 이에 해당된다. 최근 도심지의 지하구조물 건설에서 지반함몰 요소를 평가하는 것은 필수적일 것으로 예상된다. 본 연구에서 분석한 지반함몰 영향인자가 지반함몰위험 평가에 도움이 되기를 기대한다.

• 문화기술의 융합
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• 제10권5호
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• pp.693-698
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• 2024

전북 진안 지역은 다양한 암석 종류와 더불어 발달하고 있는 불연속면의 종류 또한 다양하여, 암반 내 지하수 거동을 분석하기 위해 불연속면의 종류별 배향과 빈도를 측정하였다. 불연속면의 배향 중 주향을 방위각으로 측정하여 불연속면 궤적으로 표현하였고, 불연속면 밀도는 단위면적당 발달한 불연속면 길이의 합으로 수치화하였다. 연구 지역의 불연속면 궤적은 전체적으로 북동 방향이 우세하며, 화성암 분포 지역에서 남북 방향과 동서 방향이 우세하고, 퇴적암 분포 지역은 동서 방향과 북동 방향이 우세하게 나타난다. 불연속면의 종류 중 지층 경계와 층리 및 엽리의 우세 배향인 북동 방향과 유사한 불연속면 궤적을 보인다. 불연속면 빈도는 0.1m-1 ~ 1,000m-1로 다양한 범위를 보인다. 불연속면 밀도 분포를 불연속면 등고선도 그림으로 표현하였다. 그 결과 연구 지역의 남부와 남서부 데미샘 부근의 압쇄암과 마령면 일대의 화성암 지역, 북동부 용담댐 부근의 화성암 지역 및 북서부 운일암·반일암 부근의 화성암 지역 등이 불연속면 밀도가 100m-1 이상으로 가장 높게 나타났으나, 마이산 부근의 퇴적암 지역이 상대적으로 낮은 수치를 보였다. 기존 연구 지역의 물리탐사 및 시추조사 자료 결과와 지질구조 및 불연속면 밀도 및 궤적은 향후 암반 내 지하수 거동에 중요한 인자가 될 수 있음을 시사한다.

• Asian Pacific Journal of Cancer Prevention
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• 제17권8호
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• pp.3809-3816
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• 2016

Background: Increasing knowledge and awareness of cancer screening significantly influence health promotion behavior which could markedly reduce incidence rates. In many countries, health care providers are the principal source of information concerning cancer screening. This study was carried out to assess the level of knowledge concerning cancer screening among medical students, house officers and residents and to explore their attitude towards cancer screening practices. Materials and Methods: This cross-sectional study was conducted in Kasr Al Ainy Medical School at Cairo University in Egypt, with 300 undergraduate medical students and 150 postgraduates (interns and residents) enrolled. A pre-tested self-administered questionnaire was used to collect data from the study participants regarding personal and education-related information, knowledge about cancer screening and its sources, and attitude towards cancer screening. Results: More than 64% of participants had knowledge scores of ${\leq}10$ points (out of 24). The total knowledge score (out of 6 points) for breast cancer screening increased from $1.9{\pm}1.0$ to $2.3{\pm}1.2$ and $2.4{\pm}1.1$ for $4^{th}$, $5^{th}$ and $6^{th}$ year respectively, interns showed the highest score of $2.6{\pm}1.1$, P= 0.001. Year of enrollment at medical school was a significant positive predictor of acquiring knowledge about cancer screening (post graduate vs. undergraduate students) (OR= 1.30, C.I =1.01-1.63), lack of or none receiving of orientation/training about cancer screening was the sole negative significant predictor for proper knowledge about cancer screening (OR=0.50, C.I=0.31-0.82). Over 92% of students agreed that they had insufficient knowledge about cancer screening, 88.2% appraised the need to have enough knowledge in order to direct/advice patients, relatives and friends, and 93.7% required that the faculty should emphasize the importance of cancer screening in the delivered curricula at medical school. Conclusions: A relatively low to moderate level of knowledge about cancer screening was detected among the selected medical students regardless of their year of enrollment at medical school or their graduation status, which may implicate a negative impact on early cancer detection especially in a low resource country like Egypt.

• Asian Pacific Journal of Cancer Prevention
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• 제17권3호
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• pp.1277-1284
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• 2016

Background: Early detection is a critical part of reducing the burden of breast cancer and breast self-examination (BSE) has been found to be an especially important early detection strategy in low and middle income countries such as Malaysia. Although reports indicate that Malaysian women report an increase in BSE activity in recent years, additional research is needed to explore factors that may help to increase this behavior among Southeastern Asian women. Objective: This study is the first of its kind to explore how the predicting variables of self-efficacy, perceived barriers, and body image factors correlate with self-reports of past BSE, and intention to conduct future breast self-exams among female students in Malaysia. Materials and Methods: Through the analysis of data collected from a prior study of female students from nine Malaysian universities (n=842), this study found that self-efficacy, perceived barriers and specific body image sub-constructs (MBSRQ-Appearance Scales) were correlated with, and at times predicted, both the likelihood of past BSE and the intention to conduct breast self-exams in the future. Results: Self-efficacy (SE) positively predicted the likelihood of past self-exam behavior, and intention to conduct future breast self-exams. Perceived barriers (BR) negatively predicted past behavior and future intention of breast self-exams. The body image sub-constructs of appearance evaluation (AE) and overweight preoccupation (OWP) predicted the likelihood of past behavior but did not predict intention for future behavior. Appearance orientation (AO) had a somewhat opposite effect: AO did not correlate with or predict past behavior but did correlate with intention to conduct breast self-exams in the future. The body image sub-constructs of body area satisfaction (BASS) and self-classified weight (SCW) showed no correlation with the subjects' past breast self-exam behavior nor with their intention to conduct breast self-exams in the future. Conclusions: Findings from this study indicate that both self-efficacy and perceived barriers to BSE are significant psychosocial factors that influence BSE behavior. These results suggest that health promotion interventions that help enhance self-efficacy and reduce perceived barriers have the potential to increase the intentions of Malaysian women to perform breast self-exams, which can promote early detection of breast cancers. Future research should evaluate targeted communication interventions for addressing self-efficacy and perceived barriers to breast self-exams with at-risk Malaysian women. and further explore the relationship between BSE and body image.

• Journal of Korean Neurosurgical Society
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• 제65권2호
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• pp.315-324
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• 2022

Objective : The aim of this study was to verify the equivalence and effectiveness of the tablet-administered Korean Repeatable Battery for the Assessment of Neuropsychological Status (K-RBANS) for the prevention and early detection of dementia. Methods : Data from 88 psychiatry and neurology patient samples were examined to evaluate the equivalence between tablet and paper administrations of the K-RBANS using a non-randomly equivalent group design. We calculated the prediction scores of the tablet-administered K-RBANS based on demographics and covariate-test scores for focal tests using norm samples and tested format effects. In addition, we compared the receiver operating characteristic curves to confirm the effectiveness of the K-RBANS for preventing and detecting dementia. Results : In the analysis of raw scores, line orientation showed a significant difference (t=-2.94, p<0.001), and subtests showed small to large effect sizes (0.04-0.86) between paper- and tablet-administered K-RBANS. To investigate the format effect, we compared the predicted scaled scores of the tablet sample to the scaled scores of the norm sample. Consequently, a small effect size (d≤0.20) was observed in most of the subtests, except word list and story recall, which showed a medium effect size (d=0.21), while picture naming and subtests of delayed memory showed significant differences in the one-sample t-test. In addition, the area under the curve of the total scale index (TSI) (0.827; 95% confidence interval, 0.738-0.916) was higher than that of the five indices, ranging from 0.688 to 0.820. The sensitivity and specificity of TSI were 80% and 76%, respectively. Conclusion : The overall results of this study suggest that the tablet-administered K-RBANS showed significant equivalence to the norm sample, although some subtests showed format effects, and it may be used as a valid tool for the brief screening of patients with neuropsychological disorders in Korea.

• 한국융합학회논문지
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• 제9권5호
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• pp.121-127
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• 2018

본 연구는 55명의 노인 대상자를 무작위로 급속안구운동(saccadic eye movement, SEM)군과 원활추종눈운동(smooth pursuit eye movement, SPEM) 두 군으로 구분하여 4주 동안 안구운동을 실시한 후 사건관련 전위(event-related potentials)중 P300의 전위값과 잠복기 그리고 MMSE-DS를 사용하여 안구운동이 인지능력에 미치는 영향을 알아보고자 하였다. 그 결과 SEM과 SPEM 군의 P300 전위값은 유의하게 상승하였으며, P300의 잠복기는 유의하게 짧아졌다. MMSE-DS 결과 두 군 모두 유의한 상승을 나타냈으며, 군간 비교 시 SEM군은 지남력, SPEM군은 주의력에서 유의한 차이를 나타내었다. 결론적으로 SEM과 SPEM은 노인의 인지능력을 향상 및 유지를 시킬 수 있으며 치매예방과 경도 치매에 대한 치료 도구로 사용될 수 있을 것으로 생각된다.

• 복식
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• 제59권4호
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• pp.98-110
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• 2009

Performance art is an integrated genre of different art areas, and make-up is a visual art area to give lively effects to the performance art, which makes actors and actresses changed into the characters of plays. It can be said to be a kind of deliverer of idea to help effectively understand the contents of the performance. When we are in the world abundant in various cultures and innumerable styles of expression of different countries, we should rediscover the value of the beauty of our traditional masks that have represented the emotion and thought of Han nation, which we can find in play culture of our ancestors that has kept our ancestors' value system. That's the way we can get continuous life force and competitive power of our traditional culture. The Korean traditional masks haven't only been for the prevention of bad luck and the prayer of fortune, but also well expressed Korean people's looks, features and personalities according to the roles. They are excellent artistic works in themselves, and many studies have been performed on the analyses and uses of the features of the masks in various fields due to their good expression of different cultural aspects, while the studies in the light of make-up are rarely performed. Therefore, this article aims to analyze the features of the Korean traditional masks and, by using this analysis, to present effective make-up designs in outdoor performances through a stage performance. In addition, this article also tries to present the orientation of make-up as an expression of artistic image, and to expand the expression area of make-up by using the Korean traditional masks in the light of make-up. For this purpose, I examined the related literature and the precedent study materials to find the origin and kinds of the Korean traditional masks, and analyzed the features of the masks. Furthermore, I established the make-up design plan using the material features of the Korean traditional masks by analyzing the characters in actual performance works, and presented the photos of works actually performed.

• Nuclear Engineering and Technology
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• 제42권3호
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• pp.249-258
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• 2010

Recently, many utilities have considered interim dry storage of spent nuclear fuel as an option for increasing spent fuel storage capacity. Foreign nuclear regulatory committees have provided some regulatory and licensing requirements for relatively low- and medium-burned spent fuel with respect to the prevention of spent fuel degradation during transportation and interim dry storage. In the present study, the effect of cladding creep and hydride distribution on spent fuel degradation is reviewed and performance tests with high-burned Zircaloy-4 and advanced Zr alloy spent fuel are proposed to investigate the effect of burnup and cladding materials on the current regulatory and licensing requirements. Creep tests were also performed to investigate the effect of temperature and tensile hoop stress on hydride reorientation and subsequently to examine the temperature and stress limits against cladding material failure. It is found that the spent fuel failure is mainly caused by cladding creep rupture combined with mechanical strength degradation and hydride reorientation. Hydride reorientation from the circumferential to radial direction may reduce the critical stress intensity that accelerates radial crack propagation. The results of cladding creep tests at $400^{\circ}C$ and 130MPa hoop stress performed in this study indicate that hydride reorientation may occur between 2.6% to 7.0% strain in tube diameter with a hydrogen content range of 40-120ppm. Therefore, it is concluded that hydride re-orientation behaviour is strongly correlated with the cladding creep-induced strain, which varies as functions of temperature and stress acting on the cladding.

• 지질공학
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• 제32권3호
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• pp.339-350
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• 2022

경주시 골굴사 신생대 응회암에서는 다양한 형태의 타포니가 다수 발달한다. 응회암은 풍화변질되어 있는데, 석영, 장석류, 운모, 버미큘라이트, 녹니석, 스멕타이트와 제올라이트 광물인 아날사이트 등으로 구성된다. 타포니는 초기 단계에서는 각력이 제거된 동공이나, 응회암 결정 입자의 풍화변질에 의해 형성된 미세 동공에서부터 시작하여 점차 확대된다. 타포니는 사면의 반대방향으로 약하게 경사지면서 발달한다. 타포니의 상관계수는 폭-높이 0.839, 폭-깊이 0.900, 높이-깊이 0.856인데 서로 밀접한 관련성이 있다. 타포니 벽체가 제거되면 반달형이나 신장된 타포니로 되는데, 작은 동공들이 횡적으로 병합되면서 확대된다. 커다란 타포니 동공들은 암반 사면에 비하여 내부가 비어있기 때문에 암반의 강도가 더 낮다. 따라서 타포니 사면의 강도, 동공의 비율, 체적, 합병 양상에 대한 지속적인 모니터링이 요구된다.