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주재형 ( Joo¸ Jae-hyung ) 한국가톨릭철학회 2017 가톨릭철학 Vol.0 No.28
베르그손의 _도덕과 종교의 두 원천_은 우리에게 주체화에 관한 매우 독특한 이론을 제시한다. 이에 따르면, 인간이 자신의 실존을 장악하는 주체가 되는 것은 종교를 통해서이다. 지성적 동물인 인간은 인간의 존재가 무의미한 세계 표상을 통해 인간을 허무주의의 고뇌에 빠뜨린다. 주체화는 이러한 지성의 자기 해체적 위험에 대한 방어적 반작용에서 시작된다. 그런데 베르그손은 두 종류의 주체화, 즉 정태적 종교의 작화 본능에 따른 사회적 주체화와 역동적 종교의 신비주의적 직관에 따른 우주론적 주체화를 제시한다. 이 두 주체화 방식에 대한 검토로부터 우리는 주체와 종교의 관계에 관한 다음의 결론들에 이르게 된다. 1) 종교는 주체화의 필수적인 요소이다. 2) 하지만 두 가지 주체화 양태에 따라서 두 가지 종류의 종교가 있다. In Bergson’s two sources of morality and religion one can find a singular theory of subjectivation, linked to an equally singular theory of religion. Bergson starts from a nihilistic existentialism of mankind being the essentially intellectual animal. Human intelligence gives us the depressing representation of the world, which would destroy our will to live by making us realize the meaningless of our existence in this world. Subjectivation is the defense of the destructive effect of this representation of the world. But there are two kinds of subjectivation, social subjectivation through the virtual instinct of static religion, and cosmological subjectivation by the mystical intuition of dynamic religion. From the examination of these two modes of subjectivation, we have two conclusions about the relation between the subject and religion: 1) Religion is a necessary element of human subjectivation. 2) But because there are two modes of subjectivation, we do not have a religion, but two kinds of religion according to these two modes of subjectivation.
Can we Quantify Heavy Metal Concentration in Soils by Taking a Picture?
( Jaehyung Yu ),( Yongsik Jeong ),( Ji Hye Shin ) 대한지질공학회 2019 대한지질공학회 학술발표회논문집 Vol.2019 No.2
Heavy metal contamination of soils cause serious secondary problems such as stream drainage and farm land contamination. Eventually, it may affect human health and ecological systems. Due to the secondary effects and seriousness of the issues, specific survey protocol is controlled by government agencies. The traditional soil survey methods require field sampling, sample processing, and geochemical analysis, which are labor and time intensive. Furthermore, the point-based sampling would have limitations understanding spatial distribution of contamination. Spectroscopic and remote sensing approaches could be an alternative option filling the gap of limitation. Spectroscopic analysis provides a basic knowledge to design case adaptive sensors as they provide experimental results with statistical validation. This study introduces experiment based spectroscopic analysis and prediction models for quantification of heavy metal concentration in soils. The experimental processes include chemical analysis, mineralogical analysis, and spectroscopic analysis. We figured out that high correlation between heavy metal contamination and spectral variables was found at the absorption features of specific minerals associated with geochemical reaction between clay mineral/Fe oxide and heavy metal ions. Finally, imaging approaches of heavy metal concentration in soils are tested employing hyperspectral scanner.
( Jaehyung Park ),( Ji Sun Seo ),( Seul-ah Kim ),( So-yeon Shin ),( Jong-hyun Park ),( Nam Soo Han ) 한국미생물생명공학회(구 한국산업미생물학회) 2017 Journal of microbiology and biotechnology Vol.27 No.10
Sourdough is made by fermentation of dough by lactic acid bacteria (LAB) and yeast to improve bread properties like volume, flavor, and texture. A Korean traditional sourdough was made by fermenting rice flour with rice wine (makgeolli) and used to make sponge-like bread (jeung-pyun). The aim of this study was to investigate the microbial diversity of makgeolli products and their influence on the organoleptic quality of jeung-pyun. Three commercial makgeolli were tested for jeung-pyun production, with each product exhibiting varied dough swelling rates and organoleptic qualities, and among them, J-product was ranked highest in texture and taste. Microbial analysis of the three makgeolli also showed a big difference in their population and diversity. J-product had the highest LAB and yeast counts, and the predominant species were Lactobacillus casei, Lactobacillus brevis, Leuconostoc pseudomenteroides, and Saccharomyces cerevisiae. Using J-product, sourdough was fermented at 25°C, 30°C, and 35°C, and the microbial growth in and textural properties of jeung-pyun were examined by instrumental and sensory tests. At high temperature (35°C), the rates of dough swelling and acidification were fast due to rapid microbial growth mainly caused by LAB, resulting in a short leavening time and soft and sour jeung-pyun. Sensory tests showed consumer preference for the soft and mild-sour jeung-pyun. This study shows that LAB in makgeolli play key roles in production of jeung-pyun, influencing the textural and sensory properties. For the production of high-quality jeung-pyun, development of LAB starters with high gas productivity and low acidity and establishment of an optimal fermentation procedure for rice dough are necessary.
Jaehyung Kong,Sung-il Cho 한국역학회 2021 Epidemiology and Health Vol.43 No.-
OBJECTIVES: This study aimed to examine whether the regional density of tobacco outlets in Korea was associated with the likelihood of attempting to quit among smokers METHODS: This study was designed as a secondary data analysis of a cross-sectional study. Data from the 2015 Korean Com-munity Health Survey and tobacco outlet registrations in 17 metropolitan cities and provinces with 254 communities in Korea were used for the analysis. In total, 41,013 current smokers (≥ 19 years of age) were included. Multi-level logistic regression anal-ysis was conducted to investigate regional differences associated with smokers’ attempts to quit and to evaluate the effects of in-dividual and regional characteristics on quit attempts. RESULTS: Higher tobacco outlet density was associated with lower odds of attempting to quit. Smokers who resided in districts with the highest tobacco outlet density were 18% less likely to attempt quitting (odds ratio, 0.82; 95% confidence interval, 0.70 to 0.98) than smokers who resided in the regions with the lowest tobacco outlet density (intraclass correlation coefficient, 0.030). CONCLUSIONS: This study showed that quit attempts were related to community-level factors, such as tobacco outlet density, as well as other individual factors. These findings support the implementation of national policies restricting the number of to-bacco outlets within communities or zones and limiting tobacco marketing in tobacco outlets.
Real Options Analysis of Groundwater Extraction and Management with Water Price Uncertainty
( Jaehyung Lee ) 한국환경경제학회·한국자원경제학회(구 한국환경경제학회) 2018 자원·환경경제연구 Vol.27 No.4
This paper analyses the investment options of groundwater development project under water price uncertainty. The optimal investment threshold price which trigger the investment are calibrated base on monopolistic real options model. Stochastic dynamic model is set to reflect the uncertainty of water price which follows the GBM (Geometric Brownian Motion) process. Our finding from non-cooperative investment decision model is that uncertainty of water price could deter the groundwater investment by considering the existence of option values. For policy markers, it is easy to manage ‘charges for utilization of groundwater’ rather than ‘performance guarantee ratio’ when managing groundwater investment with pricing policy. And it is necessary to make comprehensive and well-designed policies considering the characteristics of regional groundwater reservoir and groundwater developers.