• 보건교육건강증진학회지
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• 제29권1호
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• pp.13-25
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• 2012

Objectives: The aim of this study was to measure secular trends in health risk behaviors among middle and high school students in Korea between 2005 and 2009 by using data from the Korea Youth Risk Behavior Web-based Survey(KYRBS). Methods: The analyses were performed using data from the 2005, 2006, 2007, 2008, and 2009 KYRBS, which included a nationally representative sample of middle and high school students. A total of 34 health behavior indices were used for the assessment of secular trends in health risk behaviors. Logistic regression models were used to identify statistically significant secular trends in health risk behaviors, after adjusting for gender and grade. Linear and higher-order time variables were simultaneously entered into the statistical models. Results: There was evidence of small, but statistically significant increasing or decreasing trends in certain health risk behaviors. Secular trends in health risk behaviors varied by gender. Conclusions: This study indicates that between 2005 and 2009, changes in health risk behaviors among Korean adolescents were generally small, but represented statistically significant increases or decreases. Further research should explore why certain health risk behaviors are increasing or decreasing and what types of interventions are most effective.

• Asian Pacific Journal of Cancer Prevention
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• 제13권8호
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• pp.3911-3916
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• 2012

Background: The objective of this study WAS to describe cancer incidence rates and trends among THE Hong Kong population for the period 1983-2008. Methods: Incident cases and population data from 1983 to 2008 were obtained from the Hong Kong Cancer Registry and the Census and Statistics Department, respectively. Agestandardized incidence rates (ASIR) were estimated and joinpoint regression was applied to detect significant changes in cancer morbidity. Results: For all cancers combined, the ASIR showed declining trends (1.37% in men, 0.94% in women), this also being the case for cancers of lung, liver, nasopharynx, stomach, bladder, oesophagus for both genders and cervix cancer for women. With cancer of thyroid, prostate, male colorectal, corpus uteri, ovary and female breast cancer an increase was evident throughout the period. The incidence for leukemia showed a stable trend since early 1990s, following an earlier decrease. Conclusion: Although overall cancer incidence rates and certain cancers showed declining trends, incidence trends for colorectal, thyroid and sex-related cancers continue to rise. These trends in cancer morbidity can be used as an important resource to plan and develop effective programs aimed at the control and prevention of the spread of cancer amongst the Hong Kong population. It is particularly useful in allowing projection of future burdens on the society with the increase in certain cancer incidences.

• Journal of Preventive Medicine and Public Health
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• 제44권4호
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• pp.176-184
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• 2011

Objectives: Understanding recent trends in cigarette smoking among adolescents is important in order to develop strategies to prevent cigarette smoking. The aim of this study was to compare recent trends in cigarette smoking for adolescents living in rural areas, small towns and metropolitan cities in Korea. Methods: The raw data from the Korea Youth Risk Behavior Web-based Survey (KYRBWS) from 2005 to 2009 were used. Data were analyzed by using the method of complex survey data analysis considering complex sampling design. Logistic regression models were used to evaluate significant linear time trends in cigarette smoking. The indicators of cigarette use behaviors were 'current smoking rate', 'frequent smoking rate', 'heavy smoking rate' and 'smoking experience rate before 13 years of age'. All analyses were conducted according to gender. Results: Statistically significant increasing trends in current smoking rate and frequent smoking rate were observed and borderline significant increasing trends in heavy smoking rate were shown among rural boys. Among metropolitan city boys, statistically significant increasing trends were also seen for frequent smoking. Statistically significant decreasing trends in current smoking rate were observed among small town and metropolitan city girls. Smoking experience rate before 13 years of age for rural girls decreased significantly. Conclusions: Cigarette smoking prevalence among adolescents in the rural areas has increased in the last five years especially among boys. Our findings suggest that anti-tobacco program for adolescents should be conducted primarily for those in rural areas.

• 한국의류산업학회지
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• 제8권1호
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• pp.89-98
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• 2006

The purpose of this study is Korean fashion designers' tendency and degree to adopt and receive overseas fashion trends, as a founding work to suggest a direction for Korean fashion industry and designers to select and adopt overseas fashion trends. 204 survey results out of 270 ones from the same number of fashion designers in 68 brands, who work in domestic mass-fashion female-garment brands for more than 3 years, are used as final analysis data. For the data analysis, SPSS, ${\chi}^2$-verification, variable analysis and MANOVA are executed, and statistical significance is verified at significance level 0.05. Conclusions obtained from the result and discussions of study are as follows: 1) The periods for domestic fashion industry to need to adopt overseas fashion trends are during 1992-94, and 1986-88. 2) There are discrepancies of utilization of design factors per brand concept. 3) When a line which is not suitable to domestic consumers is presented as subject of fashion trend, there are difficulties to reflect, and per brand concept there are differences of reflection sequence. 4) Whether or not to develop independent themes is dichotomized per brand concept.

• 전기학회논문지
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• 제66권4호
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• pp.613-620
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• 2017

The power grid has been changed to a smart grid system to satisfy the growing need for power grid complexity, demand, reliability, security, and efficiency with a combination of existing power and ICT technology. This study analyzes the research trends in smart grid technology in the period since the introduction of the smart grid system and compares it with industrial trends to grasp the progress and characteristics of Smart Grid technology and look for ways to innovate the technology. To do this, we analyze the research trends using dynamic topic modeling, which is capable of time-series research topic analysis. Next, we compare the results of research trends with industrial trends analyzed by Gartner's experts to demonstrate that smart grid research is evolving to the level of industrialization. The results of this study are quantitative analysis through data mining, and it is expected that it will be used in many fields such as companies that want to participate in industry and government agencies that need to establish policies by showing more objective analysis results.

• 한국의류학회지
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• 제34권3호
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• pp.492-507
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• 2010

The eco-design in modem fashion is mixed with a well-being trend that combines functionality and ethics with technology to suggest a new fashion style for the $21^{st}$ century. This study analyzes the colors of the eco-design in the current fashion trends and identifies the eco-friendly color images that suggest directions for eco-design. The results of this study are as follows. First, the eco-design is an ethical design concept of the ecological value. It can be classified into the functional efficiency in the multi-functionality the sustainability, the recycling capability, the trends for health and craftsmanship, according to various suggestions by eco-design related theorists. Second, the eco-colors shown in the fashion trend follow the order of YR, R, Y, N, and B, with the order of the pale, grayish, light grayish and dull tones. Third, the hue trends of eco-colors each eco-type are focused on R, YR, and Y. With regards to the tones, the functional efficiency, the multi-functional capability, and the sustainability are shown in the neutral tone, while the recycling capability is shown in the grayish tone and the trends pursuing health and craftsmanship are shown in the pale tone.

• 한국재난정보학회 논문집
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• 제8권3호
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• pp.242-257
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• 2012

우리나라의 인구변화의 양상은 사망률의 감소, 평균수명의 연장으로 고령화, 여성화 추세이며, 더불어 출산율의 저화와 고령화 인구의 비율이 더욱 증가되고 있다. 어려운 인력수급으로 건설노무자는 외국인에 의해 충원되고 있으며 미국, 유럽, 중국 등과 FTA의 체결로 노동집약적 산업이 쇠퇴하면 건설노무자의 일자리는 지속적으로 줄어들게 된다. 이것은 건설 기능인력의 부족현상과 기능 인력의 노무비 증가로 국가의 경제적 사회적 환경에 중대한 영향을 주어 건설업 생산성 저하의 주요 요인이 되고 있다. 따라서 이 연구는 건설업 생산성을 위해 최근 자료로부터 국내 건설경기 동향, 산업별 생산성 지수, 산업별 취업자 추이, 연령 계층별 기능인력 추이, 여성 기능 인력 추이, 노동시간 추이, 외국노동자 인력 추이, 건설업의 수주동향 분석, 업체규모별 수주동향, 건설경영분석지표로부터 노동생산성에 관한 종업원 1인당 부가가치 분석으로 건설업생산성 발전전망을 제시하였다.

• 지역사회간호학회지
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• 제23권4호
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• pp.415-426
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• 2012

Purpose: This study aimed to investigate trends in home-visit nursing care by agencies' characteristics under the national long-term care insurance system. Methods: Cochran-Mantel-Haenzel tests were conducted, using data drawn from the nationwide long-term care insurance claim database of the Korean National Health Insurance Corporation from 2009 to 2011. Results: The number of home-visit nursing care agencies has decreased continuously since 2009. There were also similar trends in the total amount of service provided by home-visit nursing care agencies, the number of recipients, the number of employees, and payments. This study showed that there were statistically significant differences in the trends in home-visit nursing care by agencies' characteristics. Despite the overall downward trend, there were some increases in the percentage of home-visit nursing care provided by agencies which were established by individuals, located in large cities, and which combined home-visit care with home-visit bathing. Conclusion: Home-visit nursing care agencies are responsible for providing community-based healthcare services. For past three years, however, they have not been utilized to their full potential. Understanding the trends in home-visit nursing care by agencies' characteristics is important to develop utilization strategies for home-visit nursing care.

• 한국의류학회지
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• 제38권5호
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• pp.611-626
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• 2014

Reading and foreseeing fashion trends is crucial and difficult in the fashion industry due to accelerated and diversified changes in fashion trends. We use network analysis to investigate fashion trends from 2004 to 2013 in order to find the inter-relevance among fashion trends. We extracted words from fashion trend info for women's wear provided by Samsung Design Net, created a 2-mode network of seasons and trend languages, and visualized this network using NodeXl program. Fashion trends repeated a unique pattern during the period. In the first half (2004-2008), retro modern, feminine modern, and ecological modern were dominant trends in consecutive order. The years 2009-2013 witnessed distinctive fashion trends in S/S seasons and in F/W seasons. 11F/W, 12F/W and 13F/W seasons were characterized by artistic creative style. From 2010, natural style dominated S/S seasons. 10S/S and 12S/S seasons were distinguished as a calm natural style that reflected a peaceful and simple life. In 11S/S and 13S/S seasons, soft natural style emerged as a sign of increased importance of inner spirit and natural energy. A seasonal reappearance of trends was observed every two years in S/S seasons that enabled the prediction that 14S/S will see another version of natural style. A macroscopic trend for the last 10 years was represented by the keywords 'modern' and 'natural'. 'Modern' involved the past styles such as 60's, Baroque and the origin of human life. 'Natural' was connected with design elements such as material, silhouette and color. Managerial implications and future study directions are discussed based on the results.

• Smart Structures and Systems
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• 제29권2호
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• pp.361-374
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• 2022

As civil infrastructure has continued to age worldwide, its structural integrity has been threatened owing to material deteriorations and continual loadings from the external environment. Structural Health Monitoring (SHM) has emerged as a cost-efficient method for ensuring structural safety and durability. As SHM research has gradually addressed an increasing number of structure-related problems, it has become difficult to understand the changing research topic trends. Although previous review papers have analyzed research trends on specific SHM topics, these studies have faced challenges in providing (1) consistent insights regarding macroscopic SHM research trends, (2) empirical evidence for research topic changes in overall SHM fields, and (3) methodological validations for the insights. To overcome these challenges, this study proposes a framework tailored to capturing the trends of research topics in SHM through a bibliometric and network analysis. The framework is applied to track SHM research topics over 15 years by identifying both quantitative and relational changes in the author keywords provided from representative SHM journals. The results of this study confirm that overall SHM research has become diversified and multi-disciplinary. Especially, the rapidly growing research topics are tightly related to applying machine learning and computer vision techniques to solve SHM-related issues. In addition, the research topic network indicates that damage detection and vibration control have been both steadily and actively studied in SHM research.