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Shin, Ueon-Sang;Ahn, Hye-Sil;Shin, Ho-Sang
- Analytical Science and Technology
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- v.15 no.5
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- pp.475-481
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- 2002
The determination of phthalates and adipate in natural mineral water and its container is described. Phthalates and adipate were extracted from natural mineral water by liquid-liquid extraction with methylene chloride, concentrated and then injected in GC-MS (SIM). Phthalates and adipate from 1) PET, cap, label and glue were extracted in Soxhlet with 50 mL of carbon tetrachloride, purified with silicagel and detected with GC-MS (SIM). Peak shapes and quantitation of phthalates and adipate were excellent, with linear calibration curves over a range of $0.1{\sim}10{\mu}g/L$ in water sample ($r^2$ > 0.996) and over a range of $1{\sim}1,000{\mu}g/Kg$ in solid samples ($r^2$>0.994). The detection limits of analytes were $0.002{\sim}0.010{\mu}g/L$ in water and $0.01{\sim}0.02{\mu}g/Kg$ in solid samples. Five kinds of natural mineral water samples, two PETs, two labels, two caps and two glues were quantified by the described procedure. As a results, the concentrations of total phthalates in natural mineral water ranged from ND ~ 1.2 ng/mL. Otherwise, the concentrations of total phthalate extracted from PET ranged from 0.55 ~ 1.2 mg/Kg. We found that the accurate determination of phthalte and adipate in natural mineral water and container must be considered blank correction and the removal of label and glue in PET sample.
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Kim Sang-Sik
- Proceedings of the Korea Contents Association Conference
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- 2005.11a
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- pp.166-169
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- 2005
While use of a pet bottle with use it is light recently and convenient increases quickly, it is used from the child, also diffusing the user to a pet bottle to people of various classes, such as an old person, a woman, a male, the man in the street, and a disabled person. However, those who are standardized on the basis of the common man with the plan energy of a pet bottle, and cannot attain to the standard, That is, a child and a disabled person may be condemned to the vague situation that a lid cannot be opened or a contents thing cannot be drunk without external help. And the characteristic of a material and production which are called PET Even if convenience is emphasized for the cost reduction of COST, a design is chosen easily, and even if it calls it the man in the street, the point of coming to experience a situation with the difficult time of use can be found well. In research of a book, problem derivation which classifies entering school and a preschool man-and-woman child for a child drink for an object first by the viewpoint of universal design paying attention to such problems, and leads the actual use example of a pet bottle was carried out in true heart, and various notional approach was shown by the solution method.
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Kim, Ji Young;Ji, Min-Gu;Jung, Joong-Eun
- Proceedings of the Korea Information Processing Society Conference
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- 2021.11a
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- pp.640-642
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- 2021
비전 기반의 재활용-PET 선별공정에서, PET 외 물체와의 식별 성능은 물론 PET 용기 내 포함된 이물질 및 라벨, 뚜껑의 존재 여부, 색상에 대한 검출 성능은 재활용 소재 품질에 중요한 영향을 미친다. 본 연구에서는 비전 인공지능 기반의 재활용-PET 자동 선별 시스템을 제안하고, 인공지능 모델의 제작에서 감독학습의 학습 효과를 최적화하기 위한 데이터 레이블링 기법을 제안한다. 재활용대상 PET 와 이물질 파트가 포함된 용기의 컨베이어벨트 선별공정 혼입을 재현한 실험을 통해서, 재활용 소재화 물량과 순도를 최대화하기 위한 인공지능 모델 생성 방법에 대해 고찰한다.
https://doi.org/10.3745/PKIPS.y2021m11a.640 인용 PDF

Kim Sang-Sik
- The Journal of the Korea Contents Association
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- v.5 no.5
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- pp.124-132
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- 2005
While use of a pet bottle with use it is light recently and convenient increases quickly, it is used from the child, also diffusing the user to a pet bottle to people of various classes, such as an old person, a woman, a male, the man in the street, and a disabled person. However, those who are standardized on the basis of the common man with the plan energy of a pet bottle, and cannot attain to the standard, That is, a child and a disabled person may be condemnedto the vague situation that a lid cannot be opened or a contents thing cannot be drunk without external help. And the characteristic of a material and production which are called PET Even if convenience is emphasized for the cost reduction of COST, a design is chosen easily, and even if it calls it the man in the street, the point of coming to experience a situation with the difficult time of use can be found well. In research of a book, problem derivation which classifies entering school and a preschool boy and girl child for a child drink for an object first by the viewpoint of universal design paying attention to such problems, and leads the actual use example of a pet bottle was carried out in true heart, and various notional approach was shown by the solution method.
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