• 대한지역사회영양학회지
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• 제22권4호
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• pp.289-297
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• 2017

Objectives: Stress during adolescence is related to undesirable nutritional intake and negatively affects the growth and development. This study was performed to investigate the relationship among life stress, dietary behaviors and the intake of high-fat containing snacks in male and female high school students in Gyeonggi-do area. Methods: The subjects were 700 high school students (350 males, 350 females) in Gyeonggi-do from July to September 2014 and the survey was performed by using questionnaire that included general characteristics, dietary behaviors, high-fat containing snacks intake, and daily life stress. Results: There was a gender difference in health-related life style and dietary behaviors, and the life stress was significantly higher in female students than in male students. For health-related life style, exercise frequency, hours of sleep and conversation time with parents had significantly negative correlations with life stress, while smoking and perceived stress had significantly positive correlations with life stress. For dietary behaviors, the frequency of eating-out had a significantly negative correlation with life stress, while the changes in amount of meal intake under stress had a significantly positive correlation with life stress. The fat intake of 'high-stress group' was significantly higher and high-fat containing snacks consumed by this group consisted of cookies, honey bread and fried foods. Conclusions: It is necessary to develop appropriate programs for the emotional stability and stress relief of adolescents that provide continuous nutrition education focused on proper snack intake, desirable dietary behaviors and nutritional aspects.

• 수산해양교육연구
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• 제22권2호
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• pp.218-230
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• 2010

This study was conducted to determine the effect of the noise level on the boarding environment in a stern trawl ship, KAYA(GT: 1,737 tons, Pukyong National University). We measured the noise level at a working, an accommodation and a teaching area, and an engine space on January 9, 2010 while the KAYA was sailing on a liner sea route. At the working area, the ranges of the noise rating number(NRN) and the NRN determination frequency(FNRN) were from 44 to 73 and from 1000 to 2000Hz, respectively. The results were generally satisfied the criteria of the International Maritime Organization(IMO). The noise level at the area, except the radio room(w2), was exceeded the criteria(50dB(A)) for the efficient studying and working. The noise level at the engine control room and the machine workshop was respectively exceeded 1.2dB and 9.5dB than the criteria caused the conversation disturbance (70dB(A)). At the accommodation, NRN and FNRN were from 49 to 54 and from 1000 to 4000Hz, respectively. The noise level was below the criteria of IMO, but above 40dB(A) caused the sleep disturbance. At the teaching area, NRN and FNRN were from 44 to 63 and from 500 to 2000Hz, respectively. The noise level was exceeded than the criteria(50dB(A)) for the efficient studying. At the engine space, NRN and FNRN were from 95 to 100 and from 2000 to 4000Hz, respectively. The noise level was above the criteria of IMO(90dB(A)) for the residence, while it was not exceeded 110dB(A) for the transient.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제15권10호
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• pp.3627-3641
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• 2021

Fintech, which stands for financial technology, is growing fast globally since the economic crisis hit the United States in 2008. Fintech companies are striving to secure a competitive advantage over existing financial services by providing efficient financial services utilizing the latest technologies. Fintech companies can be classified into several areas according to their business solutions. Among the Fintech sector, peer-to-peer (P2P) lending companies are leading the domestic Fintech industry. P2P lending is a method of lending funds directly to individuals or businesses without an official financial institution participating as an intermediary in the transaction. The rapid growth of P2P lending companies has now reached a level that threatens secondary financial markets. However, as the growth rate increases, so does the potential risk factor. In addition to government laws to protect and regulate P2P lending, further measures to reduce the risk of P2P lending accidents have yet to keep up with the pace of market growth. Since most P2P lenders do not implement their own credit rating system, they rely on personal credit scores provided by credit rating agencies such as the NICE credit information service in Korea. However, it is hard for P2P lending companies to figure out the intentional loan default of the borrower since most borrowers' credit scores are not excellent. This study analyzed the voices of telephone conversation between the loan consultant and the borrower in order to verify if it is applicable to determine the personal credit score. Experimental results show that the change in pitch frequency and change in voice pitch frequency can be reliably identified, and this difference can be used to predict the loan defaults or use it to determine the underlying default risk. It has also been shown that parameters extracted from sample voice data can be used as a determinant for classifying the level of personal credit ratings.

• 한국산학기술학회논문지
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• 제22권1호
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• pp.149-158
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• 2021

본 연구의 목적은 고등학교 학생의 자아효능감과 부모와의 대화가 진로성숙도에 미치는 영향 관계를 알아보고 자아효능감과 진로성숙도 간 학교생활에 만족하는 학생과 만족하지 않은 두 집단 간의 비교연구를 통해 학교와 선생님이 학교생활에서 학생을 어떻게 지도해야 하는지, 학생들의 진로성숙도를 높이려는 노력과 학생들의 학교생활 만족을 위해 학교들의 진로교육에 대한 시사점을 살펴보는 것이다. 실증분석을 위해 한국직업능력개발원에서 2018년 초 실시한 한국교육고용패널(KEEP II) 조사 Data를 활용하였다. 연구결과, 자아효능감은 진로성숙도에 유의한 정(+)의 영향을 미치는 것으로 나타났다. 자아효능감은 부모와 대화에 유의한 정(+)의 영향을 미치는 것으로 나타났다. 부모와의 대화빈도와 내용은 진로성숙도에 유의한 정(+)의 영향을 미치는 것으로 나타났다. 자아효능감과 부모와 대화 변인이 진로성숙도에 미치는 영향은 학교생활에 만족하는 집단과 만족하지 않는 두 집단 간에 유의미한 조절적 작용(Pairwise T-Test -5.439⁎⁎⁎)을 하는 것으로 나타났다.

• 한국정보교육학회:학술대회논문집
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• 한국정보교육학회 2021년도 학술논문집
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• pp.85-91
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• 2021

학교폭력은 사회적 문제로 인식되고 있으며 이를 예방하기 위한 다양한 노력도 함께 이루어지고 있다. 본 연구에서는 학생들 상호 간의 대화 빈도 데이터를 분석함으로써 교우 관계를 파악하는 방식으로 학교폭력을 예방할 수 있는 시스템을 제안하고 있다. 평정 척도식 설문을 활용하여 학급 내 학생들과의 대화 빈도를 수치화하였고, 이 데이터는 K-means 알고리즘을 활용하여 일정 개수의 클러스터로 군집화하였다. 담임교사는 학급 내 학생들 간의 대화 빈도를 시각적으로 확인하고, 이를 근거로 특정 그룹의 학생 개별 상담 및 학급 운영 등 학교폭력 예방을 위한 참고 자료로 활용 가능하다. 데이터 분석 결과 기존에 교사가 정성적으로 파악하고 있던 교우관계와 상당 부분 일치하였고, 이는 담임교사의 학급 내 교우 관계 파악을 위한 정량적 근거 자료로 활용될 수 있음을 의미한다. 한계점은 연구 대상이 소규모인 것과 학생들의 주관적인 기준으로 설문 결과가 왜곡될 수 있는 점이다. 본 연구가 담임교사의 학급 내 교우 관계 파악 및 학교폭력 예방을 위한 노력에 실질적인 도움이 되고 학교폭력 예방에 기여될 수 있기를 기대한다.

• 한국치위생학회지
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• 제14권3호
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• pp.343-351
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• 2014

Objectives : The purpose of the study is to investigate the influencing factors on the sleep quality in patients with fixed orthodontic appliances. This study intended to find out the improving measures of sleep quality in orthodontic patients. Methods : The subjects were 222 orthodontic patients in Busan. A self-reported questionnaire was filled out by the patients from June to August, 2012. Data were analyzed by SAS version 9.20 including frequency analysis, ANOVA, t-test, multiple regression analysis, and Duncan post-hoc test. Results : The quality of sleep in the patients at the initial stage of orthodontic treatment was influenced by ceramic orthodontic appliances, tooth extraction, Bite adjustment, disturbed sleep habits, and temporomandibular joint pain. Conclusions : The most important factors influencing on the sleep quality were the anxiety toward the treatment and tooth extraction at the initial stage of treatment. A more careful conversation and collaboration are needed in the orthodontic treatment.

• 한국치위생학회지
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• 제3권1호
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• pp.1-12
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• 2003

The purpose of this study was to verify the reliability of the instrument and to analyze the contents of the humor. This study was conducted from December 16th, 2002 to January 13th, 2003, centering on Busan Dental Hospital & public health service. A total of 193 questionnaires was distributed for the survey. The result were as followings: 1. There were significant differences in humor values concerning age(F=1l.44, p=0.000), marriage(t= -3.556, p=0.000), education(F=14.83, p=0.000), clinical carrier(F=9.99, p=0.000), status(F=5.83, p=0.001), working place(F=7.39, p=0.000), and living parents(F=3.65, p=0.014). Humor values were higher for over-forties, married dental hygienists, public health service worker and no living parents. 2. There were no Significant correlation between stress and the dental hygienist's humor values. 3. There were significant differences in humor values concerning sources of the dental hygienist's humor. Data related "book/mass media"(t=-6.32, p=0.000), "conversation" (t=-12.05, p=0.000) and "daily life"(t=-10.33, p=0.000) are examples of these sources. 4. There were no significant differences in humor values concerning the dental hygienist's humor degree related frequency of used humor. 5. There were significant differences in humor values concerning the type of humor used, "word humor"(t=-7.00, p=0.000), "imitation"(t=2.68, p=0.008), "adequate situation" (t=-8.03, p=0.000), "technical terms"(t=6.65, p=0.000) pertain to this. 6. There were Significant differences in humor values concerning the time of using humor expression, "loose situation"(t=-3.75, p=0.000), "tired situation"(t=4.01, p=0.000), "tense situation"(t=5.37, p=0.000), "adequate situation"(t=-16.03, p=0.000) pertain to this.

• 대한환경공학회지
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• 제31권12호
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• pp.1123-1128
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• 2009

치과병원에서 가동되는 기기소음이 환자들에게 피해를 줄 것으로 예상되어 치료시(스케일링, 치아제거) 및 비치료시(기기만 가동) 소음특성(소음도, 주파수 특성)을 측정하여 PSIL, NR과 같은 평가방법으로 분석하고 환자들의 기기소음에 대한 반응을 설문조사를 실시하였다. 치료기기로부터 1 m 떨어진 거리에서 측정한 소음도의 범위는 67.7~78.3 dB(A)로 4 k (Hz) 이상의 고주파성분을 나타내고 있으며 응답자의 대부분이 소음에 민감한 반응(기분이 거슬리거나, 병원방문을 망설임, 소름이 돋움, 깜짝 놀람)을 보이는 것으로 조사되었다. PSIL에 의한 소음 평가 및 설문조사 결과 환자와 치과종사자의 대화에는 문제가 없는 것으로 평가되었으나 NR곡선에 의한 평가 결과 NRN에 의한 각 실의 소음기준(ISO) 중 작업장의 소음기준(NRN 60~70 dB(A))을 훨씬 초과하는 수준이었다. 병원을 방문하는 환자들의 소음공포증을 해소시키기 위하여 방음보호구 제공, 저소음 저진동 장비의 선택, 마스킹 효과 등의 다양한 대책을 수립 제공하면 치과의료서비스 질을 개선하고 치과병원 경쟁력을 향상시킬 수 있을 것이다.

• 대한의용생체공학회:의공학회지
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• 제27권6호
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• pp.376-383
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• 2006

Noise induced hearing loss (NIHS), the well-known occupational disease, is caused by continuous excessive noise. The prevention of NIHS is very important, because it is unrecoverable. There are some kinds of hearing protection device (HPD), and those are effective in preventing NIHS. But workers in noisy environment often resist to wearing them. Because they are ready - made products, so workers feel uncomfortable to wear. Also, they didn't maintain the conversation frequency range, so workers are hard to communicate in wearing them. To prevent hearing loss effectively, it is important that workers keep wearing HPD. Therefore, a HPD is needed to be comfortable to wear and be effective not only in hearing protection but also in preserving communication ability. So we proposed a custom - made hearing protection device in which a small acoustic filter is inserted. We designed several kinds of small acoustic filters and carried out some acoustic experiments for measuring characteristics of filters. We confirmed that acoustic transmission characteristic can be adjusted from experimental results using designed small acoustic filters. And we researched for the actual efficiency of a new developed custom - made hearing protection device using a small size acoustic filter. Also, we found out that workers are more satisfied with the new development than a former protection device from a workers' response.

• 대한의용생체공학회:의공학회지
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• 제23권6호
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• pp.459-465
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• 2002

본 연구는 치매노인 환자들과 간호사들의 생활의 질의 향상에 목표를 준다. 이를 위해 치매환자를 위한 대화보조 시스템이 제안되었고, 이 시스템은 주로 세가지 모듈, 즉, 음성인식엔진, 화상 에이전트, 간호 시케쥴에 의해 구분된 대화 데이터베이스 등으로 구성되었다. 남성 치매환자에 시스템을 도입함에 의해서 간호시설의 실제적인 환경에서 시스템의 평가가 이루어졌고 시스템이 도입되었을 때와 되지 않았을 때의 비교연구도 실시하였다. 치료 전문가(occupational therapist)들이 비디오 촬영을 통해서 대상자의 반응을 평가한 결과, 치매환자의 요구를 충족시키는데 있어서 대화 시스템이 전문간호사들보다 더 응답적이었다는 것을 보여준다. 게다가, 시스템을 도입함에 의해서 대상자의 발화를 유도하는 빈도가 증가함을 알 수 있었다.