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총설 : 기후변화 등 잠재적 영향을 고려한 수중 미량오염물질의 관리방향 연구
김호정 ( Ho Jeong Kim ),홍용석 ( Yong Suk Hong ),안종호 ( Jong Ho Ahn ) 한국화학공학회 2013 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.51 No.6
본 논문에서는 국내·외 미량오염물질의 관리현황을 분석하고, 기후변화 등 수질관리에 영향을 주는 잠재적인 요소를 고려한 미량오염물질의 관리방향을 제시하고자 하였다. 국내에서는 먹는 물 안전성 확보를 위해 수돗물 정수 및 원수를 대상으로 미량오염물질에 대한 실태조사가 꾸준히 진행되었다. 근래에 들어 하천·호소수 중의 미량오염물질에 대해서도 조사가 진행되고 있으나 조사 항목과 횟수가 많지 않아 전체적인 미량오염물질 발생 및 검출 현황을 파악하기에는 어려움이 있었다. 선진국에서는 미량오염물질의 실태조사 외에도 환경 매체에서의 거동, 인체 및 생태위해성, 처리공정 등에 미량오염물질 관리 전반에 대한 연구가 수행되고 있음을 확인할 수 있었다. 향후 기후변화에 따른 기온과 수온의 상승, 수문학적인 순환의 변화 등으로 미량오염물질의 잔류 농도가 증가할 우려가 있다. 또한 물 재이용이 확대되는 과정에서 미량오염물질에 대한 우려가 커질 수 있다. 그러므로 먹는 물 또는 신체와 접촉하는 용도의 용수에 대해서는 사전예방의 관점에서 미량오염물질의 관리를 강화하는 것이 필요하다. 지표수 중의 미량오염물질에 대해서는, 물환경 정책목표 중의 하나인 생태 위해성 관리의 관점에서, 물질의 거동, 생태 위해성 평가, 하·폐수처리공정에서의 제어방안 등에 대한 연구가 확대되어야 할 것이다. In this study, the management polices of micropollutants (MPs) were reviewed and the future management strategy was discussed considering climate change and etc. In Korea, the investigation of drinking water has been actively carried out for the priority contaminants as well as MPs. Recently river and lake waters have been also examined for MPs. However, the coverage and depth of the investigation is limited. Moreover, climate change is likely to increase air & water temperature and it will affect the hydrological cycle. Such changes may increase the residual concentrations of MPs in water system. As water reuse increases, the residual MPs of the recycled water may create public concerns. Thus, in a viewpoint of the precautionary principle, more stringent management of MPs is recommended for the drinking water and the body-contact water use. For the surface water, more studies are necessary to understand the ecological risk by MPs.
두개저의 크기,형태 및 두부자세와 악안면구조의 위치적 상관관계
홍용석,조영곤,윤영주,김광원 朝鮮大學校 口腔生物學硏究所 1997 口腔生物學硏究 Vol.21 No.1
This study was done to evaluate the correlations between the size, the form of the cranial base, head posture and the horizontal and vertical position of craniofacial structures. For this purpose, 100 cephalometric radiographs were taken from the sample composed of 51 male and 49 female, 12 measurement criteria and 37 reference points were established and digitized, then calculation was performed for the values of measurement variables and the horizontal and vertical position of reference points. The correlations between them were analyzed statistically and mean facial diagrams were constructed and compared with the selected groups which were composed of 10 samples each as large and small group from the measurement value. The following results were obtained: 1. The angles N-S-BA and N-S-AR as variables for the form of cranial base correlated highly to the horizontal and vertical position of reference points in the cervical column with statistical significance (0.1% level). 2. The angles N-S-BA and N-S-AR as variables for the form of cranial base correlated to the horizontal position of the reference points in the facial structure with statistical significance (1% level), but not to the vertical position of them (5% level). 3. The length N-S, S-BA, N-BA and N-AR as variables for the size of cranial base were correlated to the position of craniofacial structures in various ways, but in general, highly correlated to the horizontal and vertical position of midfacial structures around the teeth and alveolar area. 4. The angle NSL/CVT and NSL/OPT as postural variables for the inclination of cranial base and cervical column were correlated to the horizontal position of the craniofacial structures with statistical significance (1% level), but not to the vertical position of them (5% level). 5. The angle OPT/HOR and CVT/HOR as postural variables for the inclination of cranial base and true horizontal line were not correlated to the horizontal and vertical position of the craniofacial structures with statistical significance (5% level). 6. The correlation between the measurement variables and horizontal and vertical positions of the reference points in soft tissue were shown as similar to the related hard tissue points.