• Title/Summary/Keyword: Systematic study

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A Study on the Characteristics of Safety Insensitivity in Construction Workers (건설근로자가 갖는 안전불감증의 특성분석)

  • Kim, Seyeob;Cha, Suhyeon;Cha, Yongwoon;Han, Sangwon
    • Korean Journal of Construction Engineering and Management
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    • v.22 no.2
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    • pp.88-96
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    • 2021
  • There have been many efforts to identify and eliminate the direct causes of the construction accident, but many accidents are still occurring in the construction industry. The main reason for the construction accident is not because of ignorance of the causes, but because of safety insensitivity. This paper analyzes why construction workers feel safety insensitivity and how safety insensitivity varies depending on their age and work experience. A survey of 103 construction workers confirmed that systematic safety education is the most important factor in minimizing safety insensitivity of construction workers. On the other hand, economic reasons such as cost reduction were identified as the most tempting factor to increase safety insensitivity. In addition, the survey results showed that those in their 40s and 50s, the largest proportion of construction workers, have a significantly higher level of safety insensitivity than those in their 20s and 60s. These findings are expected to be valuable source that can be used to prevent construction safety accidents.

Systematic Review on Diagnosis of Children with ADHD: With Special Regard to School-Based Identification and Multi-method Assessment (ADHD 아동 진단과 판별: 학교기반 및 다중방법 평가를 중심으로)

  • Kim, Dongil;Go, Eun-Yeong;Kim, Eun-Hyang;Go, Hye-Jeong;An, Ji-Yeong
    • (The) Korean Journal of Educational Psychology
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    • v.26 no.4
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    • pp.1225-1248
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    • 2012
  • The present study explored how ADHD assessment, identification, and diagnosis were conducted in research through an overview of research papers on ADHD in the last 10 years. The collected studies were categorized and analyzed by topics including data collection settings, assessment and identification, coexistence with other disabilities, considerable variables throughout evaluation, and biological basis. They were categorized and analyzed according to the identification methods, the number of assessment(s) and the number of informant(s). The results were as follows: First, the assessment and identifying studies on children with ADHD were excessively biased toward clinical settings. Second, the majority of the previous studies explored more the development or validation of tools for the assessment and identifying of ADHD than the other topics. Finally, a high preference for the use of a multiple assessment method in identifying ADHD was found. However, considering methodological aspects, there was a lack of practical application of multi-step process such as including a personal interview, reviewing school records or direct observing rating criteria. Considering these results, we discussed an urgent need for the diagnosis and identification guidelines of ADHD for teachers to effectively identifying ADHD children at schools. The implications of school-based ADHD assessment and diagnosis research were suggested.

China, the United States and Japan's animation film creation style of comparative study (중·미·일 애니메이션영화 창작스타일 비교연구)

  • Yang, jian-hua
    • The Journal of Korean Philosophical History
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    • no.39
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    • pp.221-235
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    • 2013
  • Through the comparative analysisand inductive research on main creation styles of Chinese, American and Japanese animation films, a conclusion can be given out, which means that the animation film style of each country can hardly be formed without their own traditional painting art, aesthetics habits and ways of thinking. It is these characteristics that form their unique animation film style. America emphasizes realism art, development and utilization of new technology, Japan pays sepcial attention totraditional painting art and comic stories. In business aspect, they bring about different business models relying on the experience of satisfying the diverse needs of domestic and global entertainment markets. When it comes to the content field, they carry forward universal values and meet the individualistic heroismso that a variety of business animation films and art animation films find their ways into the global market and acquire great popularity among audiences from all over the world. Through the comparasion of American and Japanese animation films, a new view to analyze the animation films of China is created. Animation creation is largely based on the need of socialist ideology from 50s to 80s. Even though the purposes of animation film creations returned to satisfying the diverse requirements of commercial markets and audiences, the consequences, such as the break gap of creations and talents, the lack of diverse creative styles and commercial market operation mechanism, sitll affect China's animation films today. Japan found thier position from the American model and became successful. Nowadays, China need find our own creative style and position from American model and Japanese model. And the systematic reformings that are detailed in the government managements, industry standards, internationalized talents cultivation and accumulation are the essential point.

A comparative study on the 'Xuan'in the view of Yangxiong & Gehong(2) (양웅(揚雄)과 갈홍(葛洪)의 '현(玄)' 개념 비교 연구(2) - 우주구조론을 중심으로 -)

  • Lee, Jin-yong
    • The Journal of Korean Philosophical History
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    • no.42
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    • pp.165-195
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    • 2014
  • This paper aims to examine the meaning of 'Xuan(玄)' in the cosmology and astronomy, especially in the view of Yang-xiong(揚雄) and Ge-hong(葛洪). The cosmology of the ancient China has opened a discussion about the Tian(天), through the discussion about the celestial structure, the structure and the location relation of the heaven & earth, in the Han-dynasty has been found a systematic theory. But in the ancient Chinese philosophy, the cosmology has been developed in the field of the astronomy & the Oriental calendar. In this context, Yang-xiong(揚雄) and Ge-hong(葛洪) have founded the system of the cosmology, it is as in the following. First, Yang-xiong criticized sharply the theory of Gaitian(蓋天說) and advanced the theory of Huntian(渾天說). And Ge-hong support the theory of Huntian(渾天說) and also accepted the theory of Xuanye(宣夜說). Second, Yang-xiong(揚雄) and Ge-hong(葛洪)'s cosmology is regarded as the theoretical premise of their cosmogony. As the discussion about the celestial structure, the structure and the location relation of the heaven & earth, both scholar discussed about the cause of creation, the differentiation process. And in the this context, they founded the cosmology as the concept 'Xuan'. Third, the concept 'Xuan' in the both scholar forms a philosophical system. Yang-xiong insisted that the concept 'Xuan' is the basis of the universe, the human-being and the society. While through realizing the concept 'Xuan', Ge-hong tried to pursue the human-being's agelessness and the eternal life. In this way, their view point of the cosmology is comprised of cosmogony & astronomy. With this perspective, they are going to found the system of their own philosophy.

A Study on Systematic Firmware Security Analysis Method for IoT Devices (체계적인 IoT 기기의 펌웨어 보안 분석 방법에 관한 연구)

  • Kim, Yejun;Gim, Jeonghyeon;Kim, Seungjoo
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.31 no.1
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    • pp.31-49
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    • 2021
  • IoT devices refer to embedded devices that can communicate with networks. Since there are various types of IoT devices and they are widely used around us, in the event of an attack, damages such as personal information leakage can occur depending on the type of device. While the security team analyzes IoT devices, they should target firmware as well as software interfaces since IoT devices are operated by both of them. However, the problem is that it is not easy to extract and analyze firmware and that it is not easy to manage product quality at a certain level even if the same target is analyzed according to the analyst's expertise within the security team. Therefore, in this paper, we intend to establish a vulnerability analysis process for the firmware of IoT devices and present available tools for each step. Besides, we organized the process from firmware acquisition to analysis of IoT devices produced by various commercial manufacturers, and we wanted to prove their validity by applying it directly to drone analysis by various manufacturers.

A Study of Authors' Moral Rights Infringements Regarding Cinematographic Works and Other Visual Works (음악·영상저작물의 동일성유지권 침해관련 연구)

  • Kang, Sang-Gu
    • The Journal of the Korea Contents Association
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    • v.21 no.6
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    • pp.228-236
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    • 2021
  • This research investigates the causes of infringements related to authors' moral rights which has most conflict among moral rights of authorship, through analysis of judicial precedents and compare whether there subsists any differences in viewpoints between judicial precedent trend and those on behind the scene of broadcast production. Copyright is divided into intellectual property and moral rights of authorship. Right to the integrity of the work is part of moral rights of authorship and produce one content and used in various media. When the edit is needed to fit the organization and advertisement time, advanced consultation from the rightful owner or written consent is needed. However, under the time pressure or ignorance of copyright, the arbitrary edits are made and content is used. This infringes the right of the integrity of the work. When we produce and use cinematographic works and other audiovisual works, there are considerable variablilies stemming from authorship, production cost and program staff. Therefore, prior conscent is needed to acquire and use the copyright in a proper manner. However, due to production-oriented environment and low understanding of the copyright protection, we usually depend on the users' work practices rhather than insufficiency of copyright laws in dealing with the infringement of right to the industry. In conclusion, we need to provide meticulous work manual and to focus on systematic eduction of professional copyright manpower.

A Change of Vegetation at the Ecological Restoration Area of Simwon Valley in Jirisan National Park (지리산국립공원 심원계곡 생태경관 복원공사지역 식생 변화)

  • Jung, Tae-Jun;Kim, Yeon-Gyeong;Kim, Young-Jin;Jung, Myung-Hee;Park, Kyoung-Hee;Shin, Chang-Keun;Park, Seung-hong;Kim, Young-Sun
    • Korean Journal of Environment and Ecology
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    • v.35 no.3
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    • pp.294-304
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    • 2021
  • This study aims to obtain basic data for systematic restoration by analyzing the monitoring results of the Shimwon Valley Ecological Landscape Restoration Project area in Jirisan National Park. In 2017, when the restoration project was completed, 12 monitoring plots and 4 control plots were installed for vegetation monitoring, and changes in the relative dominance, species diversity index and similarity between 2017 and 2020 were analyzed. The species diversity index of the surveyed areas where trees were planted during the restoration project was 0-1.4552, and the similarity index with the control group was 0% except for one survey area at 1.32%. The very low species diversity index and similarity index in the survey areas were attributed to the loss of trees planted during the restoration project due to death, damage by wild boars, or erosion by running water. On the other hand, the species diversity index was 0.9538-2.3222 in the monitoring plot where no tree was planted, and the similarity index was analyzed to be as high as 8.33%. It is necessary to continue the long-term monitoring for the development of ecological landscape restoration methods in the national park and analysis of the succession in monitoring plots where no trees were planted.

Minimum Wind Speed of Dragging Anchor for Ships in Jinhae Bay Typhoon Refuge (진해만 태풍 피항 선박의 주묘 한계 풍속에 관한 연구)

  • Kang, Byung-Sun;Jung, Chang-Hyun;Park, Young-Soo;Kong, Gil-Young
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.27 no.4
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    • pp.474-482
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    • 2021
  • An average of two to three typhoons that occur in the Philippines or Taiwan pass through Korea each year owing to the influence of the geographical location and western winds. Because Jinhae Bay is known as Korea's representative typhoon refuge, it is filled with ships during typhoons and later becomes saturated with ships anchored to the surrounding routes. If a strong wind drags an anchored ship, a collision accident may occur because of the short distance between the ships. Therefore, a systematic anchoring safety management of Jinhae Bay is required. In this study, the minimum wind speeds of a dragging anchor based on the water depths of Jinhae Bay anchorages were investigated. When 7-9 shackles were given, the minimum wind speeds were 48-63, 46-61, and 39-54 knots at depths of 20, 35, and 50 m, respectively. As the water depth increased, the length of the cable laid on the sea bed became shorter than 5 m owing to the external force, and the minimum wind speed showed a significant difference of 4-8 knots. In addition, ships with high holding power anchors (AC-14 type) had higher minimum wind speeds than ships with conventional anchors (ASS type). Finally, it was confirmed that at a depth of 50 m, dragging easily occurred even when a high holding power anchor was applied.

Comparison of Factors Influencing Job Satisfaction by Occupation in S Tertiary Hospital -Focused Herzberg's Motivation and Hygiene Factors (일개 S상급종합병원 내 직종별 직무만족에 미치는 영향요인 비교 -허즈버그의 동기 및 위생요인 중심으로)

  • Kang, Kun-Woo;Jeong, Ho-Tae;Nam, Yun-Teak;Cho, Eun-Kyung
    • Korean Journal of Clinical Laboratory Science
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    • v.53 no.1
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    • pp.96-104
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    • 2021
  • There will be many changes in job consciousness and job satisfaction due to changes in various job fields and social interests, and it is necessary to manage them efficiently for the organization to continue to grow. By analyzing factors influencing job satisfaction by occupation, the study intended to provide the necessary data for an efficient management plan. 400 Employees working at S tertiary hospital in Seoul from April 1st to April 15th, 2015 were targeted. An analysis of the validity and reliability of the influencing factors was conducted, and the allied health profession which showed the highest level of satisfaction in overall job satisfaction and influencing factors were identified. It was found that achievement, compensation and working environment in the medical doctor profession, achievement, compensation and job stability in the nursing profession, achievement and working environment in the allied health profession, achievement, interpersonal relationships, working environment, and job stability in the administrative profession, were the main influencing factors for job satisfaction. It can be seen that not only motivation factors but also hygiene factors affect job satisfaction. To increase the level of satisfaction, it is judged that systematic management of hygiene factors as well as motivation factors is necessary.

The Effects of Youth Well-being on Career Decision Self-efficacy with Mediation Effect of Community Social Capital -for School-maladjusted Youth- (청소년 안녕감이 진로결정 자기효능감에 미치는 영향 및 지역사회자본의 매개효과 -학교부적응 청소년 대상으로-)

  • Song, Kyeng-my;Cho, Sung-je
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.22 no.1
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    • pp.672-680
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    • 2021
  • The purpose of this study is to understand the effects of adolescent wellbeing of school maladjusted teens on the career decision self-efficacy and the mediating effect of community capital. The subjects were 116 school maladjusted teens in Ulsan metropolitan area. As analysis methods, frequency analysis, descriptive statistics analysis, correlation analysis, three-step mediation effect analysis, and a Sobel test were performed based on factor analysis, reliability analysis, and regression analysis, using the R program. As a result, adolescent wellbeing was found to have a significant positive (+) effect on career decision self-efficacy. The effect of adolescent's wellbeing on career decision self-efficacy was confirmed. This means that the self-efficacy of career decisions will improve as the adolescent's wellbeing of school maladjusted teens increases and there is more positive community capital. Overall, it will be necessary to develop and utilize educational programs that can improve the sense of youth wellbeing and implement systematic intervention of specialized counseling services helpful in career search and decision-making in light of the psychological characteristics of youth. Therefore, to improve the career decision self-efficacy of school-maladjusted teens, reinforcement of teenage wellbeing and various strategies utilizing community capital will be necessary.