• Proceedings of the Korean Society of Disaster Information Conference
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• 2023.11a
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• pp.149-150
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• 2023

많은 인원을 필요로 하는 조선업은 선박을 건조하는 현장의 제품들이 복합 공정이면서도 중후장대한 특성을 가지고 있다. 이러한 선박을 건조할 때는 종사하는 작업자 간의 작업 내용에 대한 의논과 방법의 결정에 따른 경험기술의 활용도가 높다. 그래서 작업자별 작업 방법이나 기능의 차이가 많고 그 차이만큼이나 공정 진척이나 품질에 대한 결과도 다르게 나타나게 된다. 하지만 인력 집약도가 높은 조선소 작업인력이 퇴직이나 이직 등으로 발생되는 공백을 내국인으로 채우지 못하고 경험이 없고 소통도 어려운 외국인 작업자로 대체하고 있는 실정이다. 외국계 작업자의 경우 인건비가 낮은 중소기업이나 대기업의 하도급 업체에 고용이 되는데 중소기업의 특성상 기술력의 축적이나 안전작업을 위한 사전 직무교육 등에는 여유가 없어 제한된 기간 동안의 고용이나 단순 업무에만 종사토록 하는 등의 방법으로 활용해왔다. 그러나 외국계 작업자의 고용 비중이 높아지면서 전반적인 생산성의 한계와 불안전 작업에 대한 우려로 그 관심도 높아지고 있다. 외국계 작업자의 경우 생산 현장에서 이루어지고 있는 각종 안전관련 교육이나 행사, 동료간의 소통등에 소외되면서 불안전이 가중되고있고 비자종류에 따라 체류기간이 한정되어 기술력의 유지는 어려운 현실이 될 수 밖에 없다. 이러한 외국계 작업자에게 안전에 대한 수준을 높이기 위한 방안으로 직무별 위험성평가도 작업자의 논높이에 맞게 해야 한다. 현재 활용되고 있는 4가지 위험성평가 방법을 일부 보완하여 안전수준에 맞게 실시하여 작업자 개인별 직무 수행상의 위험성에 대한 이해도가 안전에 미치는 영향을 최소화 하여 안전을 유지시키는 방안을 연구한다. 위험성평가의 취지가 기본적으로 해당 작업자 전원참여라는 중요 요소임을 감안할 때 외국인 작업자의 직무 이해도 점검은 매우 중요하다 하겠다.

• The Korean Journal of Nuclear Medicine Technology
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• v.13 no.1
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• pp.93-97
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• 2009

Purpose: Recognize circulation work system and fixing work system's merits and demerits that is enforced in operation of PET/CT center in sudden increase recently. Wish to estimate connectivity degree of individual exposure dose and PET/CT working that is managed periodically through this and look for operation efficiency of PET/CT center. Materials and Methods: (1) Find interrelationship of length of service to be individual exposure dose and PET/CT through TLD interpretation. Specially, evaluate on the basis of data of 2.5 years until 2 quarters 2006~2008 year that show patient increase rapidly the latest. (2) Recognize what countermeasure is evaluating problems happened at circulation work system and fixing work system. Results: Patient examination's number was 14,674 items until 2 quarters 2006~2008 year, and the $^{18}F$-FDG average injection amount was 461.5 MBq. 2 people of 10 radiotechnologist did fixing work PET area and GAMMA area each, and 8 people did circulation work of 3 times for 2.5 years. Average exposure dose that PET area and Gamma area's circulation men in service receive was 1.32 mSv, and PET area men in services came out average 0.825 mSv high than Gamma area men in services. Nurse's exposure dose is 0.28 mSv, and next 2 reason is conjectured. One is contact with patient that medicate $^{18}F$-FDG injection, and another is consultation about patient's next time schedule after examination end. Although exposure dose's amount is not much, is expected to consider continuation work possibility by exposure dose in case is a nurse with pregnancy possibility. Also, $^{131}I$-isotope therapy area's radiotechnologist that use capsule appeared by 0.12 mSv and a nuclear medicine doctor appeared by exposure dose that is less of 0.11 mSv. Conclusions: In case do PET/CT center circulation work after a long time, connoted danger that most men in service is consecutiveness deficiency of business and individual exposure dose increase at early 1 month. Specially, way for individual exposure dose's decrease should be considered. Also, need to evaluate abhorrent work form for efficient work system introduction, and enforce circulation and fixing work suggestion suitable shift working. Finally, must make normalized business guide and so on to prevent circulation work people's business efficiency decline.

• Journal of Food Hygiene and Safety
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• v.31 no.2
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• pp.126-131
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• 2016

This study examined the immunostimulatory activities on a 70% ethanol extract of raw garlic (RG) and steamed garlic (SG) grown in Korea, Japan, and America using primary immune cells isolated from the blood of Soyangin, Taeumin, and Soeumin volunteers. The Soeumin showed the highest cell proliferation, NO and $TNF-{\alpha}$ production from the immune cells treated with a 70% ethanol raw garlic extract (RGE), followed Taeumin, and Soyangin. The constitution differences were not observed for the same ethanol streamed garlic extract (SGE) and the SGE showed stronger immunostimulatory activities than RGE. The immunostimulatory activities of RG and SG showed a significant difference among countries and the immunostimulatory activities were the highest in RG and SG grown in Korea, followed by RG and SG grown in Japan, RG and SG grown in America. The effect of RGE and SGE on antioxidant activity showed similar trends.

• Proceedings of the Korean Society of Computer Information Conference
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• 2011.06a
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• pp.253-256
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• 2011

이 연구는 국내 초등학교에서 실시되고 있는 방과후 컴퓨터교육의 운영을 조사하고 문제점을 체계적으로 분석하고 파악함으로써 방과후 컴퓨터교육의 개선방안을 제안하는데 목적이 있다. 이를 위해, 방과후 컴퓨터교육에 관련한 문헌조사 및 컴퓨터교육의 운영에 대한 CIPP평가모형을 적용한 설문조사, 지도교사 집단면담 등을 토대로 방과후 컴퓨터교육의 운영성과를 분석했다. 연구결과, 현행 방과후 컴퓨터교육은 대체로 바람직하게 운영되고 있다고 인식하고 있었다. 각 평가항목별 구체적인 분석결과 수준별 고려여부(학생:M=2.35, 교사:M=2.70), 시설 및 기자재(학생:M=2.25, 교사:M=2.20), 복리후생 여건(학생:M=2.28, 교사:M=2.50), 교재구성(학생:M=2.51, 교사:M=2.65), 맞춤형 수준별 전략(학생:M=2.90,교사: M=2.45) 등의 분야는 미흡하다고 인식하는 것으로 조사되었다. 또한 집단면담 결과를 토대로 교육현장 요구 반영, 과정별 차이를 고려한 목표 제시, 새로운 교육 과정의 개발이 필요, 강사 전문성 기준의 재정립, 교재 구성 및 유용성 제고, 래포(rapport) 형성과 개인별 맞춤형 수업 가능성, 성찰과정을 강조하는 평가, 통합 커뮤니티 구축 가능성 모색, 방과후 컴퓨터 수업 개선을 위한 연계 방안 필요성 등을 고려해야 하며, 각종 방과후 컴퓨터교육 운영에의 저해요인(컴퓨터관련 각종 규정, 학생들의 참여의지 부족, 예산 및 인력부족 등)등을 개선하는 것이 중요하다. 초등학교 방과후 컴퓨터교육에 대한 양적 질적 성과분석 결과를 바탕으로 차세대 방과후 컴퓨터 교육의 개발을 위한 총론적 개선방안 제시는 물론, 구체적인 차세대 방과후 컴퓨터교육의 개발연구가 필요하다.

• The Journal of the Korea Contents Association
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• v.21 no.12
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• pp.310-321
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• 2021

The influence of regional economic growth on migration may also differ by age and generation age due to individual lifestyle. Therefore, this study analyzes an effects of changes in regional economic growth on migration between regions by age group. The result shows that the increase in the growth rate of the regional economy and job creation increased the net migration rate, regardless of age group. Second, it is found that the growth rate of the regional economy and job creation have a greater effect on the net migration rate for the youth population than for the middle-aged group. Third, it is found that the gap between regions in the level of individual income in the 25 to 29 years old and the level of land price fluctuations in the 40 to 64 years old affect the net migration rate. This implies that regional economic growth is still an important factor in the migration between regions, and has a great influence on the youth population.

• Journal of Internet Computing and Services
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• v.17 no.1
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• pp.83-89
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• 2016

This study aimed to examine how gender and regional differences affect the relationships between SNS use and social capital. By analyzing a large set of data from Korean teenagers, significant roles of gender and regional differences could be found. In regards to gender difference, the most notable finding was the negative effects of SNS use on bonding and bridging social capital among male teenagers. Furthermore, it was found that such negative effects of SNS use were significant particularly among urban teenagers. These findings theoretically contribute to broadening the understanding of the relationships between SNS use and social capital.

• The Journal of Korean Association of Computer Education
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• v.6 no.3
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• pp.143-150
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• 2003

The popularization of the Internet brought about easy access to a huge amount of information, yet it is hardly easy for one to find information in need. Therefore, information users must have information retrieval abilities to gather, analyze and utilize data in efficient ways. In general the information retrieval strategies of each user are all different, and consequently the retrieved result also significantly varies from one to another. This paper describes an experimental study on information retrieval behaviors in elementary students, and analyzes the variation in retrieval strategies and results by examining cognitive patterns based on their personal characteristics, specifically their cognitive patterns. As a research result we propose a set of education requirements which can improve students' information retrieval abilities and the efficiency of the information retrieval system.

• The Journal of Korean Association of Computer Education
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• v.13 no.4
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• pp.61-68
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• 2010

One often thinks that those doing any activity on the Internet are likely to be addicted to it so that they tend to rather restrain the educational use of what the Internet can provide. However, the online edu-games deserve a good learning material which can not only provoke learners' interest but also draw out a smoother interaction between teachers and learners. Even the preliminary study on immersion verified that the Internet could work positively for the learners. Considering that online edu-games can be a useful tool for individual learning, more studies on immersion should be conducted focusing on the individualization in the future. This paper shows the differences among the components of learning immersion depending on the different individual cognitive styles in the online edu-games.

• The Journal of the Acoustical Society of Korea
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• v.28 no.5
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• pp.409-415
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• 2009

The head-related transfer function (HRTF), which has an important role in virtual sound localization has different characteristics across the subjects. Measuring HRTF is very time-consuming and requires a set of specific apparatus. Accordingly, HRTF customization is often employed. In this paper, we propose a method to search an adequate HRTF from a set of the HRTFs. To achieve rapid and reliable customization of HRTF, all HRTFs in the database are partitioned, where a binary search tree was employed. The distortion measurement adopted in HRTF partitioning was determined in a heuristic way, which predicts the differences in perceived sound location well. The DC-Davis CIPIC HRTF database set was used to evaluate the effectiveness of the proposed method. In the listening test, where 10 subjects were participated, the stimuli filtered by the HRTF obtained by the proposed method were closer to those by the personalized HRTF in terms of sound localization. Moreover, performance of the proposed method was shown to be superior to the previous customization method, where the HRFT is selected by using anthropometric data.

• Korean journal of communication and information
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• v.69
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• pp.139-169
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• 2015

This paper examines the factors that influence viewers' attitudes toward the public service broadcasting (PSB) system and the license fee. A online survey group was classified into four types on the basis of their expectations and evaluations of public values and demographic characteristics. Subsequentially, the attitudes each type of the viewers displayed toward the PSB system and the license fee were analyzed. The result reveals that young women in their 20-40s have more negative attitudes toward the PSB system than any other groups; those women tend to have high expectations on 'diversity' whereas they show low satisfactions with all the other public values. Additionally, this study attempted to detect factors that affect the attitudes toward the PSB system and the license fee. The important factors was not only the viewers' demographic characteristics but also their expectations and evaluations regrading the public values of PSB.