환경오염과 환경약자, 환경피해와의 관계 분석: 대기 및 수질을 중심으로

김태현,박현주,김태현 한국환경정책학회 2018 環境政策 Vol.26 No.2

본 연구의 목적은 환경정의 실현을 위해 환경오염과 환경약자, 환경피해 지표들 간 상관관계 및 구조모형 분석을 통하여 환경불평등이 나타나는지를 확인하는 것이다. 이를 위해 우리나라 전국 시・군・구 단위환경오염(수질 및 대기오염)물질 배출량, 환경약자(사회경제적 약자, 생물학적 약자) 비율, 환경피해(환경관련 질환으로 인한 사망자수) 등 환경정의 관련 통계자료를 수집하여 환경불평등을 분석하였다. 상관분석결과 환경약자, 환경오염, 환경피해 관련 일부 지표들 간에 통계적으로 유의미한 상관관계를 도출하였다. 구조모형 분석결과 환경오염이 환경피해와 직접적으로 관련이 있지는 않으나 환경약자를 매개로 환경피해에 간접적 영향을 미치는 것으로 나타났다. The purpose of this study is to identify environmental inequity through correlation and structural equation modeling analysis of the relationships between environmental pollution, susceptible and damage. This study compiles the amount of environmental pollution emissions (water and air pollution), the ratio of those susceptible to the environment (those as a socioeconomic disadvantage and biologically weaker) in the population, and environmental damage (the number of deaths due to environmental diseases) in counties and cities. As a result of the analysis, statistically significant correlations were found between some indicators. The structural model analysis showed that environmental pollution was not directly related to environmental damage, however it did show an indirect impact on environmental damage through environmental weakness.

Smart and resilient urban disaster debris cleanup using network analysis

김태현,김태현 대한공간정보학회 2017 Spatial Information Research Vol.25 No.2

This study aims to discuss problems and to suggest improvements of disaster debris clearance procedure by case analysis, providing scenarios and network analysis. An interview with officer and manager of disaster debris clearance procedure was conducted in Busan Dongnae-gu in 2014. Problems deducted were as follows: lack of cooperation and support from each local government, landfill clearance for the entire quantity of disaster debris. To supplement the problems, the first step was to provide four scenarios on the basis of utilizing waste sorting facility in other borough and disposing disaster debris by each property. Next, the study proposed the shortest distance by each scenario to find the best route using network analysis. As a result, in case of disposing the entire quantity of disaster debris, the best route was using Busanjin-gu waste sorting facility as a second temporary disposal storage. Finally, the best route was categorizing disaster debris by landfill, incineration plant, and recycle facility using Dongnae-gu waste sorting facility as a second temporary disposal storage in case of flood. There for this study holds its significance improving disaster debris cleanup guidelines.

주거 부문 탄소발자국 결정요인 분석:1인가구와 다인가구 비교를 중심으로

김태현,김태현 한국환경정책학회 2023 環境政策 Vol.31 No.4

가구 내 에너지소비에 따른 1인당 탄소발자국을 줄이는 것은 탄소중립 달성에 중요함에도, 최근 증가하는 1인가구의 탄소발자국 특성에 대한 연구는 부족하다. 이에 본 연구는 온라인 설문조사 기반으로 가구의 여름철/겨울철 주거 부문 탄소발자국을 산출하고, 1인가구와 다인가구의 탄소발자국 차이 분석과 탄소발자국 결정요인 비교분석을 수행하였다. 탄소발자국 차이 분석 결과, 1인가구는 여름철/겨울철 주거 부문 1인당 탄소발자국이 다인가구보다 많은 것으로 나타났다. 1인가구와 다인가구의 탄소발자국 결정요인 비교분석 결과, 공통결정요인으로 여름철은 주거면적, 겨울철은 중앙(지역) 난방 여부가 도출되었으며, 그 외 결정요인은 상이하였다. 본 연구 결과는 건물 부문 탄소중립 달성에 있어서 1인가구의 탄소발자국을 줄이는 것이 중요하며, 탄소중립 정책이 1인가구와 다인가구의 결정요인을 고려하여 차별적으로 적용되어야 함을 의미한다. 본 연구결과는 탄소중립 기본계획 수립을 위한 근거자료로 활용될 것으로 기대한다. Reducing the per capita carbon footprint associated with household energy consumption is crucial for achieving carbon neutrality in the residential sector. However, existing research on the carbon footprint characteristics of single-person households, which often exhibit inefficient energy consumption, is insufficient. This study, therefore, calculates the summer/winter residential sector carbon footprints based on online surveys and analyzes the differences and determinants of carbon footprints between single-person and multi-person households. The results showed that single-person households in the residential sector have higher per capita carbon footprints during both summer and winter compared to multi-person households. Common determinants of carbon footprints between single-person and multi-person households include residential area in summer and the use of central (or district) heating in winter, with other factors varying between the two household types. The findings emphasize the importance of reducing carbon footprints in single-person households toward achieving carbon neutrality in the residential sector and suggest that carbon-neutral policies should be differentially applied, considering determinants unique to both single and multi-person households. The study's results are expected to be utilized as foundational data for establishing carbon-neutral master plans.

Association of Demographic and Socioeconomic Factors With Risk Factors for Chronic Kidney Disease

김태현,김태현,이민지,유기봉,한은아,최재우 대한예방의학회 2015 Journal of Preventive Medicine and Public Health Vol.48 No.3

Objectives: The goal of this study was to examine the association of various demographic and socioeconomic factors with risk factors for chronic kidney disease (CKD). Methods: We used nationally representative pooled data from the Korea National Health and Nutrition Examination Survey (KNHANES), 2007–2013. We estimated the glomerular filtration rate (GFR) using the Modification of Diet in Renal Disease equation. We defined CKD as a GFR <60 mL/min/1.73 m2, and 1304 of the 45 208 individuals included in the KNHANES were found to have CKD by this definition. The outcome variable was whether individual subjects adhered to the CKD prevention and management guidelines recommended by the Korea Centers for Disease Control and Prevention. The guidelines suggest that individuals maintain a normal weight, abstain from alcohol consumption and smoking, manage diabetes and hypertension, and engage in regular exercise in order to prevent and manage CKD. Results: This study found that individuals with CKD were more likely to be obese and have hypertension or diabetes than individuals without CKD. In particular, male and less-educated CKD patients were less likely to adhere to the guidelines. Conclusions: Although the prevalence of CKD, as indicated by the KNHANES data, decreased from 2007 to 2013, the prevalence of most risk factors associated with CKD fluctuated over the same time period. Since a variety of demographic and socioeconomic factors are related to the successful implementation of guidelines for preventing and managing CKD, individually tailored prevention activities should be developed.

초음파 유도하 담낭 조직검사를 통해 진단된 담낭의 소세포암

김태현,정진수,오성렬,김태현 대한내과학회 2010 대한내과학회 추계학술대회 Vol.2010 No.-

SoC 플랫폼 상에서 임베디드 블루투스오디오 스트리밍 솔루션 개발

김태현 한국정보처리학회 2006 정보처리학회논문지. 컴퓨터 및 통신시스템 Vol.13 No.7

In this paper, we describe the development and optimization of an embedded Bluetooth solution on an SoC platform for real-time audio streaming over a Bluetooth wireless link. The solution includes embedded Bluetooth protocol stack and profile simplemented on a virtual operating system for portability, and other optimization techniques to fully exploit the benefits of multimedia-oriented SoC. The optimization techniques implemented in this paper are memory access minimization by using on-chip scratch pad memory, codec library optimization with DSP and parallel memory access instruction set, and dynamic audio quality adjustment regarding current wireless link status. Experimental results show that the optimized solution presented in this paper can support high-quality audio streaming without the support of external memory. 본 논문에서는 블루투스 무선 링크를 이용한 실시간 오디오 스트리밍을 위해 DSP를 내장한 SoC (System-on-Chip) 플랫폼 상에서 임베디드 블루투스 솔루션의 개발과 최적화에 대해 설명한다. 개발된 솔루션은 이식성을 고려해서 가상 운영체제 상에서 구현된 임베디드 블루투스 프로토콜 스택, 프로파일과 타겟 멀티미디어 SoC의 특성을 이용한 최적화 기법들을 포함한다. 주요 최적화 기법으로는 SoC 내의 스크래치 패드 메모리의 활용을 통한 메모리 접근 최소화, DSP 연산과 병렬 메모리 접근 명령을 이용한 코덱 구현, 무선 통신 환경을 고려한 동적 오디오 품질 조정 등이 있다. 실험 결과는 본 연구에서 제안한 최적화 기법을 적용한 임베디드 솔루션은 별도의 외부 메모리 없이 고품질 오디오 스트리밍을 지원할 수 있음을 보여준다.

입체조형 동적회전조사 방사선치료의 선량 검증

김태현,신동호,이두현,박성용,윤명근,신경환,표홍렬,김주영,김대용,조관호,양대식,김철용,Kim Tae Hyun,Shin Dong Ho,Lee Doo Hyun,Park Sung Yong,Yun Myung Guen,Shin Kyung Hwan,Py Hong Ryull,Kim Joo-Young,Kim Dae Yong,Cho Kwan Ho,Yang Dae-Sik,K 한국의학물리학회 2005 의학물리 Vol.16 No.4

입체조형 동적회전조사 방사선치료(Dynamic Conformal Arc Radiotherapy, DCAR)에서 필름 선량계를 이용한 선량검증시 필름 회전중심점 이동 보정값을 최적화법으로 구하고 최적화 후 DCAR에 대한 선량 검증의 정량적 허용기준을 제시하고자 하였다. 정위방사선치료를 시행했던 7명의 전이성 뇌암 환자에서 DCAR 치료계획을 시행하고 필름 선량계로 선량을 측정하였다. 필름 선량계의 가장 큰 계통적 오차 요인인 회전중심점 이동 보정값을 최적화법으로 구하고 치료계획과 필름으로 측정된 선량분포를 비교하여 최적화 전후의 평균 선량오차와 점선량오차가 $5\%$ 이상인 지점의 비율을 얻었다. 모든 환자에서 필름 선량계의 회전중심점 이동 보정값은 1 mm 이내였다. 필름 회전중심점 이동 보정 최적화전, 후로 선량오차 결과를 산출하였다. 최적화 전, 후의 평균 선량오차의 평균은 각각 $1.70{\pm}0.36\%$, $1.34{\pm}0.20\%$이었고 점선량오차가 $5\%$ 이상인 지점 비율의 평균은 각각 $4.54{\pm}3.94\%$, $0.11{\pm}0.12\%$로서 최적화 후 선량오차가 현저히 감소하였다. 본 연구의 결과와 같이 최적화법을 이용한 필름의 회전중심점 이동값을 구하고 최적화 후의 평균 선량오차와 점선량오차가 $5\%$ 이상인 지점의 비율을 구하는 방법은 임상에서 DCAR에 대한 선량 검증 방법으로 유용하게 사용될 수 있을 것으로 기대된다. The purpose of this study is to develop the optimization method for adjusting the film isocenter shift and to suggest the quantitative acceptable criteria for film dosimetry after optimization In the dynamic conformal arc radiation therapy (DCAR). The DCAR planning was peformed In 7 patients with brain metastasis. Both absolute dosimetry with ion chamber and relative film dosimetry were peformed throughout the DCAR using BrainLab's micro-multileaf collimator. An optimization method for obtaining the global minimum was used to adjust for the error in the film isocenter shift, which is the largest pan of systemic errors. The mean of point dose difference between measured value using ion chamber and calculated value acquired from planning system was $0.51{\pm}0.43\%$ and maximum was $1.14\%$ with absolute dosimetry These results were within the AAPM criteria of below $5\%$. The translation values of film isocenter shift with optimization were within ${\pm}$1 mm in all patients. The mean of average dose difference before and after optimization was $1.70{\pm}0.35\%$ and $1.34{\pm}0.20\%$, respectively, and the mean ratios over $5\%$ dose difference was $4.54{\pm}3.94\%$ and $0.11{\pm}0.12\%$, respectively. After optimization, the dose differences decreased dramatically and a ratio over $5\%$ dose difference and average dose difference was less than $2\%$. This optimization method is effective in adjusting the error of the film isocenter shift, which Is the largest part of systemic errors, and the results of this research suggested the quantitative acceptable criteria could be accurate and useful in clinical application of dosimetric verification using film dosimetry as follows; film isocenter shift with optimization should be within ${\pm}$1 mm, and a ratio over $5\%$ dose difference and average dose difference were less than $2\%$.

모자가족과 부부가족간의 가족스트레스 관련변인에 관한 비교연구

김태현,조희선 한국가족학회 1991 家族學 論集 Vol.3 No.-

기술집약적 중소기업의 성장과정 : 대전의 코스닥 상장기업을 중심으로

김태현,신동호 한남대학교 사회과학연구소 2003 사회과학연구 Vol.12 No.-

다니자키 준이치로(谷崎潤一郎)와 영화 - 영화요소의 문학작품으로의 도입 시기를 중심으로

동북아시아문화학회 2008 동북아 문화연구 Vol.1 No.14

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