• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 2002년도 추계학술발표회
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• pp.280-282
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• 2002

In analysis of pumping test data, generally infinite domain has been assumed. However, in many cases, this assumption was not readily satisfied. Some boundaries conditions and natural heterogeneity of hydrogeologic properties would play critical roles on groundwater flow and contaminant transport. This study examined effects of some boundary conditions and heterogeneity on the groundwater flow and contaminant transport with basic numerical groundwater modeling, which provides implications for remediation of contaminated groundwater.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 2003년도 추계학술발표회
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• pp.282-284
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• 2003

Multi-phase extraction of LNAPLs not only floating on groundwater but also captured in soil pores was studied in a simulated soil system. The extraction rate of LNAPL under the MPE conditions was much higher than the rate under usual hydraulic gradient conditions. The WE might be especially useful for recovery of oils in fine-textured soils such as clay-dominant soils. The vacuum-enhanced transport of LNAPL in soils also depended on the properties of LNAPL such as viscosity and density as well as soil textures.

• 한국콘텐츠학회논문지
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• 제16권12호
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• pp.170-180
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• 2016

우리나라 비정규직 청소년의 노동 시장이 지속적으로 증가하며, 불안한 요소가 지속적인 환경의 변화로 건강상의 문제로 변하고 있다. 이에 본 연구의 목적은 비정규직의 청년 근로자의 근무환경이 건강문제에 미치는 요인을 파악하고자 하였다. 본 연구에서는 제4차 근로환경조사 자료를 활용하여 청소년 근로자(15세~29세) 4,322명 대상으로 통계 분석하였다. 통계 분석은 SAS 버전 9.4(SAS Institute Inc., Cary, NC, USA)로 이루어 졌으며, t 검정, NOVA 및 다중 회귀 분석을 하였다. 그 결과 개인, 일반 특성 (환경 노동자), 근무 시간, 건강 문제 중심으로 보았으며, 요통의 주요한 인자로 보고 있으며 risk가 2.7배 증가하며 (p=0.0202), 근육통(어깨, 팔, 목 등)에서는 risk가 1.4배 증가하는 등으로 건강에 직접적인 영향을 주고 있다. 결론은 우리나라의 청소년 근로환경이 계층의 차별성과 다양한 불만이 이루어 질 수가 있는 근로환경의 조건의 삶이 질의 변화가 필요 할 것이다.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 2000년도 창립총회 및 춘계학술발표회
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• pp.72-72
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• 2000

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 2005년도 INTERNATIONAL SYMPOSIUM ON SOIL & GROUNDWATER ENVIRONMENT
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• pp.26-28
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• 2005

• 한국환경생태학회:학술대회논문집
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• 한국환경생태학회 2009년 학술대회 논문집
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• pp.114-116
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• 2009

• 한국환경생태학회:학술대회논문집
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• 한국환경생태학회 2000년도 정기총회 및 학술논문 발표회
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• pp.59-63
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• 2000

• International Journal of Industrial Entomology and Biomaterials
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• 제29권2호
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• pp.207-213
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• 2014

The structural proteins of classical swine fever virus (CSFV) consist of nucleocapsid protein C and envelope glycoprotein $E^{rns}$ (E0), E1 and E2. Among them, E2, the most immunogenic of the CSFV glycoproteins, induces a protective immune response in swine. In this study, to determine the optimal expression conditions of glycoprotein E2 using baculovirus system, we investigated the influence of insect cells and media to the expression of recombinant E2. Recombinant virus containing glycoprotein E2 coding gene was constructed with bApGOZA DNA. Expression of the glycoprotein E2 was analyzed by SDS-PAGE and Western blot analysis using anti-CSFV E2 monoclonal antibodies. Expression of glycoprotein E2 in Sf21 cells was first observed after 3 days and reached a maximum on the 5th day after infection. Furthermore, the highest levels of glycoprotein E2 expression were observed at multiplicity of infection (MOI) of 5. When three different insect cell lines (Sf21, High-Five and Se301) were tested, High-Five cells showed the highest production. In addition, four different serum-free and serum-supplemented media, respectively, were tested for the expression of glycoprotein E2 and the budded virus (BV) titers. As a result, serum-supplemented medium provided the best conditions for protein production and the BV yield.

• 한국실내디자인학회논문집
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• 제19호
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• pp.114-120
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• 1999

By taking an ecological approach, The purpose of this thesis was to 1. analyze the existing literary work about design directives for the elderly housing. 2. case study about actual housing conditions of elderly people, 3. grasp the level of satisfaction and level of requirement about housing environment by Korean elderly, 4. by integrating the above three, provide foundational data arranging the appropriate housing design directives pertaining to Korea's actual circumstances. The major findings in this study were surmmarized as follows. (1) From the six literary works, 27 items as Microsystem, 1,249 items as Mesosystem, and 330 items as Exosystem were founded and there was no evidence of directives for Macrosystem. (2) As a result of the case study, there appeared a substantial difference between actual conditions of housing environment for the Korean elderly and the design directives perceived in the literary works. (3) The level of satisfaction and for the Korean elderly housing environment were founded differently in each directives. (4) By ecological approach for the Korean elderly housing environment design directives as follows. In microsystem (13 items) in mesosystem(83 items), in exosystem(24 items), in macrosystem(15 items), 135 items in total were suggested as design directives for Korean Elderly housing environment.

• 한국직업건강간호학회지
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• 제25권4호
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• pp.300-310
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• 2016

Purpose: Few studies have considered the psychosocial work environment factors in relation to employee health. This study explored the relationship between psychosocial work characteristics and self-rated health among Korean employees. Methods: The study population of 21,476 employees was derived from the 2014 Korean Work Environment Survey (KWES). Psychosocial work environment was measured by Copenhagen psychosocial questionnaire scales. Results: Among employees at workplaces (n=21,476), 23.3% rated their health as poor. Among 12 indicators of psychosocial work environment characteristics, 'higher emotional demand', 'demands for hiding emotions', 'work-family conflict', and 'social community at work' were independently associated with risk of poor self-rated health of Korean employees after adjustment of all sociodemographics, work condition characteristics and physical work environment exposure. In addition, higher 'possibilities for development' and 'social support from supervisor' were more likely to decrease the risk of poor health. Conclusion: We suggest that psychosocial work environment is an important determinant of employees' health. The study results provide a good starting point for developing intervention and strategies for health improvement.