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Oh, Jeong-Ik,Lee, Jechan,Lee, Taewoo,Ok, Yong Sik,Lee, Sang-Ryong,Kwon, Eilhann E. Elsevier Science B.V. Amsterdam 2017 Journal of CO₂ utilization Vol.20 No.-
<P><B>Abstract</B></P> <P>This study laid great emphasis on strategic use of CO<SUB>2</SUB> as reaction medium and raw material for energy recovery from food waste via shifting carbon distribution from pyrolytic oil to syngas. Thus, the mechanistic understanding of CO<SUB>2</SUB> in pyrolysis of food waste was investigated systematically in this study. To this end, the thermo-gravimetric analysis (TGA) of food waste in N<SUB>2</SUB> and CO<SUB>2</SUB> was carried out. The TGA test evidenced that any physical aspects describing the thermal degradation such as onset and end temperature were not influenced by CO<SUB>2</SUB>. A scale-up experimental work was also conducted with a batch-type tubular reactor to figure out any chemical influences induced by CO<SUB>2</SUB> in pyrolysis of food waste. CO<SUB>2</SUB> in pyrolysis of food waste imparted the genuine capability for shifting carbon distribution from pyrolytic oil to syngas. CO<SUB>2</SUB> led to carbon distribution shift from pyrolytic oil to syngas (<I>i.e.</I>, enhanced generation of H<SUB>2</SUB> and CO). Particularly, the generation of CO evolved from pyrolysis of food waste in CO<SUB>2</SUB> was substantially enhanced by a factor of 100 at 800°C. Thus, all experimental findings in this study significantly introduced an innovative way to use CO<SUB>2</SUB> as energy resources, thereby substantially boosting the sustainability in the thermo-chemical process.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Utilizing CO<SUB>2</SUB> as reaction medium in thermo-chemical process. </LI> <LI> Shifting carbon distribution from pyrolytic oil to syngas. </LI> <LI> Enhanced generation of CO from food waste using CO<SUB>2</SUB> by a factor of 100. </LI> </UL> </P>
Some Semantic Universals on Numeral Classifier Languages
Oh, Sang-Ryong 충주대학교 2006 한국교통대학교 논문집 Vol.41 No.-
본 연구는 동남아시아 언어들에 있는 수량사에 존재한다고 여겨지는 두 개의 의미적 보편성을 집중적으로 논의한다. 하나는 일반수량사(general classifier)에 관한 것이고, 다른 하나는 어떠한 범주가 수량사체계에서 두드러지게 나타나는가 하는 것이다. 이전 연구에서 나타난 문제점을 수정하고, 일반수량사의 영향력이 덜 하다는 것을 밝힌다. 또한 16개의 언어표본을 가지고 어떤 의미적 범주가 더 대표성을 보이는가를 연구한다.
Some Semantic Universals of Numeral Classifier Languages
Sang-Ryong Oh 한국중원언어학회 2008 언어학연구 Vol.- No.12
The study focuses on two semantic universals in numeral classifier languages in Southeast Asia. One is on the scope of general classifiers, and the other on typical semantic features of the numeral classifier system. With the corrections of previous studies, the semantic scope of the general classifier is not really unmarked than expected. With the sample of 16 typical numeral classifier languages, the study proposes what semantic features are more omnipresent than others.
Lexical Semantics and Some Implications
Oh, Sang-Ryong 忠州大學校 2004 한국교통대학교 논문집 Vol.39 No.2
본 연구는 어휘의미론(lexical semantics)의 틀에서 두 가지 이론을 분석하고 있다. 하나는 한 단어가 여러 가지의 의미를 가지는 다의성(polysemy)현상에서 예상치 못하는 의미를 가지게 되어 반의성(antonymy)이 깨어지는 경우를 제안하고 논의한다. 다른 하나는 은유적 허구 움직임(metaphorical fictive motion)에서 영어와 국어에서 서로 다른 동사가 쓰이는 예를 들어, 이러한 동사들의 의미도 어휘의미론에서 다루어져야 한다고 제시한다.