• Title/Summary/Keyword: safety contents

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Heavy Metal Contents in Internal Organs and Tissues of Scallops Patinopecten yessoensis and Comb Pen Shell Atrina pectinata (가리비(Patinopecten yessoensis) 및 키조개(Atrina pectinata)의 부위별 중금속 함량 및 위해도 평가)

  • Choi, Woo Seok;Yoon, Minchul;Jo, Mi Ra;Kwon, Ji Young;Kim, Ji Hoe;Lee, Hee jeung;Kim, Poong Ho
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.50 no.5
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    • pp.487-493
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    • 2017
  • Recent years have seen steadily increasing concerns about human exposure to heavy metals through seafood consumption. In Korea, the diverse dietary patterns of different bivalve shellfish necessitate tissue-specific evaluation of heavy metal contents for risk assessment. We analyzed the heavy metal contents of various tissues in scallops (Patinopecten yessoensis) and pen shells (Atrina pectinate). In both species, we found higher levels of cadmium (Cd) in the mantle than in the adductive muscle, while there was no significant difference between the two tissue types in total mercury (THg) and lead (Pb) (P<0.05). Levels of THg and Pb were acceptable by Korean standards. However, the level of Cd in pen shell mantle tissue exceeded the standard by 40%. The rate of heavy metal exposure from consumption of these species was shown to be 0.003-0.010% of the provisional tolerable weekly intake of THg and 0.312-0.600% of the provisional tolerable monthly intake (PTWI) of Cd as recommended by the Joint FAO/WHO Expert Committee on Food Additives. These findings on the tissue-specific heavy metal contents of these species will be useful in assessing the health risks of Korean dietary habits.

A Study on the Effectual Making Schemes of the Safety Assessment for the Construction Works (건설공사 유해,위험방지계획서의 효과적 작성방안에 관한 연구)

  • Choi, Jin-oo
    • Journal of the Korean Society of Safety
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    • v.17 no.4
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    • pp.168-172
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    • 2002
  • The Safety Assessment for Construction works is used in order to make the safety plans to protect calamities in construction sites. However in Korea it is problem that the Safety Assessment has strict and meaningless contents. So it is not used well. This study suggests the effectual making methods of the Safety Assessment to solve the problems which are found through investing serious calamities and interviewing experts.

Direction of approach to web-based edutainment contents for prevention of crime against children (어린이 대상 범죄 예방을 위한 웹 기반 에듀테인먼트 콘텐츠 접근 방향)

  • Kim, Y.K.;Kim, D.H.
    • Journal of Korea Multimedia Society
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    • v.17 no.6
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    • pp.759-768
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    • 2014
  • Recently crime against children is emerged as a serious social problem. Children should be protected in social. However, they have become major targets of the crime, as sexual abuse, abduction, abuse, domestic violence, school violence and so on. To solve these problems, it is important to educate crime prevention for children all above. Entertainment is one of the edutainment's elements. It attracts voluntary participation, immersion, and continuous learning from children. Edutainment contents for prevention of crime against children are far less fully studied than that of school subject as Mathematics, English, and so on. There is no serious study on edutainment contents for prevention of crime against children, as well as base study and approach way. Now more than ever, safety needs are strongly demanded in society. Accordingly, study on edutainment contents for prevention of crime against children have been demanded more than ever. In this paper we shall see basic approach principles and planning process of web-based edutainment contents for prevention of crime against children. This study lays the foundation for future work on edutainment contents for prevention of crime against children.

Study on Users' Perception of Digital Contents Traits and Intention (디지털콘텐츠 특성의 이용자 지각과 이용의도에 관한 연구)

  • Choi, Dong-Chun;Kim, Yong-Bum;Yoon, Ji-Eun
    • Proceedings of the Safety Management and Science Conference
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    • 2008.04a
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    • pp.157-179
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    • 2008
  • This study demonstrates some major traits of digital contents as information, playfulness, individuality, perceived recognition as perceived usefulness and perceived ease of use, relationship quality as satisfaction and commitment, user behavior as use intention. To make an empirical analysis the study, it is hypothesized that traits of digital contents and perceived recognition, traits of digital contents and relationship quality, perceived recognition and relationship quality, relationship quality and user behavior. Proposed theoretical model was based on TAM and was tested by the structure equation model for validity, credibility, goodness of fit. The major finding of this study can be summarized as follows, traits of digital contents are positively affected by perceived recognition, satisfaction in relationship quality and use intention via perceived recognition. Theoretical implication of this study are as follows. First, users wanted to choice only needed information. Second, users recognized digital contents as a part of life. So, user's ability is very important in this environment. According to this, business related with or interested in digital contents must have developed digital contents in variety aspect. Users must have concerned using digital contents, also.

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Electrical and Mechanical Properties of Gamma-ray Irradiated LDPE/EVA Blends (${\gamma}$-선 조사에 따른 LDPE/EVA 블랜드의 전기적, 기계적 특성)

  • Lee, Chung;Kim, Ki-Yup;Kim, Gyu-Baek;Jung, Sang-Ho;Ryu, Boo-Hyung
    • Journal of the Korean Society of Safety
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    • v.21 no.4 s.76
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    • pp.55-59
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    • 2006
  • The radiation effects on electrical and mechanical properties of LDPE/EVA blends with various vinyl acetate contents were investigated. Radiation degradation of LDPE/EVA blends were studied by using gelation, volume resistivity, permittivity, dissipation factor, elongation at break, and E-modulus. As vinyl acetate contents increased in LDPE/EVA blends, electrical insulation characteristics were deteriorated, but flexibility was improved. As irradiation doses increased, electrical insulation characteristics were improved, but flexibility was deteriorated.

A Study on Class Loading in Java Virtual Machine (자바 가상 머신에서 클래스 로딩에 관한 연구)

  • 김기태;이갑래;유원희
    • Proceedings of the Korea Contents Association Conference
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    • 2003.05a
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    • pp.171-176
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    • 2003
  • The core of class loading is assured of type safety. The security of Java greatly depends on type safety. In JVM, type safety mechanism is very difficult and access of accuracy is not clear, so type safety problems were raised. In paper, we analysis simple Java code and present a diagram graph and an operational semantics for dynamic class loading and type safety.

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A Cyber Collaboration Platform based on Web for Food Safety Service (식품 안전 서비스를 위한 웹 기반 가상 공동 플랫폼)

  • Ko, Eung-Nam
    • Journal of Digital Contents Society
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    • v.16 no.1
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    • pp.79-83
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    • 2015
  • This paper suggested a cyber collaboration platform based on web for food safety service. We implemented the cyber collaboration platform for food safety service so that the users participated in collaborative work may refer shared media objects as the same view to others. In this paper, we discussed a model for increasing reliability of food safety data through N screen server and client model. This paper explained a performance analysis of a system with function comparison running on multimedia collaboration work based on web and N screen techniques.