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양용준 ( Yang¸ Yong-joon ) 한국현대영어영문학회 2020 현대영어영문학 Vol.64 No.4
The purpose of this paper is to examine the usage of indirect speech act in English and Korean through a questionnaire. Although all the language expressions we use in our daily life are speech act, the meanings conveyed can vary depending on the speaker's expression or the listener's understanding. Differences in language of the time, social, and culture will naturally exist, but it can be predicted that language differences between generations in one culture will further accelerate. Direct speech act can be easily accepted in any language, but indirect speech act is difficult to understand because of habits and customs arising from social and cultural differences. In recent years, it can be considered that the meaning of indirect speech act brought about by generational differences is accelerating more than ever. As the survey results show, they are well aware of the speech act, but if they go to the sub-classification of direct speech act and indirect speech act, they tend to feel difficult to understand. The expressions of indirect speech act in English and Korean are frequently used in the form of questions, statements, and commands, and in the order of frequency, the order of question, statement, and command was followed. In conclusion, we examined the meaning, usage, and degree of use of indirect speech act in English and Korean, and investigated how to pay attention in using indirect speech act in the future through a survey. The students who responded to the questionnaire are students majoring in English, so the same answer to the question about the ease of use and understanding of indirect speech act is that they use the same expressions of indirect speech act in both languages, whether consciously or unconsciously. However, there may be a slight difference between expression and frequency. (Jeju National University)
STUDY ON THE STABILITY OF O/W AND MLV EMULSION CONTAINING DIHYDROXYACETONE
( Yongjoon Joo ),( Yeoungjun Han ),( Yongho Joo ),( Younghwan Jeon ) 대한화장품학회 1998 대한화장품학회지 Vol.24 No.3
Dihydroxyacetone (DHA) has been used as a self tanning agent and many emulsion formulations containing DHA have been studied. In an emulsion, many factors which have negative effect on DHA and the resultant DHA decomposition can destabilize the emulsion base. In this study, two kinds of emulsion with 5% DHA were prepared, OA/V type emulsion and Multilamellavesicle (MLV) type emulsion to compare the stabilization effects of both emulsions on the DHA. The DHA concentration was analyzed quantitatively by high performance liquid Chromatography (HPLC), also the pH and viscosity of both emulsions were measured for stability. This process was carried out over 4 months. For HPLC, a bondaclone C<sub>18</sub> column with a mobile phase of distilled water and UV detector were used. The results of these experiment showed that DHA is more stable in an MLV emulsion than it is in an O/W type emulsion.
An Economic Assessment on Prioritizing Climate Change Adaptation Policies in Water Management
( Yongjoon Kim ),( Sung-eun Yoo ),( Ji Won Bang ),( Kwansoo Kim ),( Donghwan An ) 한국농업경제학회 2019 KOREAN JOURNAL OF AGRICULTURAL ECONOMICS(KJAT) Vol.60 No.3
Water management issue is recognized as one of the main concerns of climate change due to an increasing level of drought in terms of its magnitude and severity. This paper tries to prioritize water management-related climate change adaptation policies based on a probabilistic CBA (Cost-Benefit Analysis) approach. First, we classify adaptation policies into four types and evaluate the BCR (Benefit-Cost Ratio) of each type. Second, the risk premium of each adaptation policy type is evaluated, and the BCR is reestimated after taking risk premium results into consideration. Lastly, we found that the estimated probabilistic distribution function of the BCR revealed a remarkable result: “the economically feasible adaptation policy type evaluated at an average can be economically unviable with a probability of 29.38% (RCP 8.5).” In conclusion, the estimated results show that the BCR is hardly over unity, and the priority of adaptation policy can be different when uncertainty effects of climate change associated with extreme weather events are taken into consideration.
Yongjoon Kang,Jihun Jang,박주현,이창희 대한금속·재료학회 2014 METALS AND MATERIALS International Vol.20 No.1
The phase transition behaviors of non-metallic inclusions as a function of Ti content were investigated bymonitoring changes in the microstructure and mechanical properties of high-strength low-alloy steel multi-pass weld metals. Weld metals with Ti contents ranging from 0.007 to 0.17 wt% were prepared using a gasmetal arc welding process. The inclusion analysis was performed based on thermodynamic calculationsand transmission electron microscopy, accompanied by energy-dispersive spectrometry and selected areaelectron diffraction. With increase in the Ti content of weld metals, the chaotic arrangement of ferrite lathsin the columnar zone was transited to a well aligned arrangement and the impact toughness of the weldmetals drastically deteriorated in response to the decrease in the Mn content of the inclusion. The effec-tive inclusion phase for intragranular nucleation contained considerable amounts of Mn and a Mn depletedzone was observed around the effective nucleant.