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한국어 발화 말 담화표지 연구 - 감탄사 유래 담화표지를 중심으로 -
한춘매 ( Han¸ Chun-mei ) 반교어문학회 2021 泮橋語文硏究 Vol.- No.58
담화표지는 담화에서 다양한 화용적 기능을 수행한다. 모든 언어에 존재하는 초분절음인 억양도 담화에서 여러 가지 기능을 한다. 이 글에서는 발화 말 위치에서 주로 실현되는 감탄사 유래 담화표지를 연구 대상으로 그에 얹힌 운율 양상을 살펴보고 담화의 상황과 결부하여 실제 발화에서 어떤 담화 기능을 수행하는지 알아본다. 이를 통해 운율 특성과 담화 기능의 관련성도 살펴본다. 그리고 유형론적인 측면에서 다른 언어들과 비교 분석을 진행하여 한국어 발화 말 담화표지의 보편성과 특수성에 대해 논의하고자 한다. 운율 특성과 담화 기능의 관련성 고찰은 담화표지의 전반적 측면의 연구에 도움을 줄 수 있다. 유형론의 이론에 기초한 연구는 또 한국어 발화 말 담화표지 내지는 한국어의 본질적인 특성을 알아내는데 도움이 될 수 있을 것으로 생각한다. Discourse markers play a variety of pragmatic functions in discourse. Supersonic intonation in all languages also has many functions in conversation. In this paper, we focus on discourse markers originating from interjections, which occur at the end of sentences, and look at the prosody patterns on it, find out what discourse functions are performed in real speech in conjunction with the situation of discourse. Through this, we should also discuss the correlation between prosodic features and discourse function. In addition, from the perspective of typology, we make a comparative analysis with other languages to explore the universality and particularity of Korean discourse markers. The consideration of the relevance of prosody characteristics and discourse functions can assist in the study of the overall aspects of discourse markers. The research based on typology theory is also helpful to discover the characteristics of discourse markers and even the essential characteristics of Korean.
Chunmei Miao,Wei-Gao Ge,Zhaojun Zhang 한국수학교육학회 2014 純粹 및 應用數學 Vol.21 No.3
In this paper, we study the existence of positive solutions for singularimpulsive differential equations with integral boundary conditions "( )+ ( ) ( , ( ), '( ))=0, ∊ ',∆ ( )= ( ( ), '( )), =1,2,…, ,∆ '( )=- ( ( ), '( )), =1,2,…, , (0)=∫10 ( ) ( ) , '(1)=0,where the nonlinearity f(t, u, v) may be singular at v = 0. The proof is based onthe theory of Leray-Schauder degree, together with a truncation technique. Somerecent results in the literature are generalized and improved.
Existence and uniqueness of positive solutions for singular three-point boundary value problems
Chunmei Miao,Weigao Ge 한국전산응용수학회 2009 Journal of applied mathematics & informatics Vol.27 No.3
In this paper, the singular three-point boundary value problem u〃(t) + f(t,u) = 0, t 2 (0, 1), u(0) = 0, u(1) = αu(η), is studied, where 0 < η < 1, α > 0, f(t, u) may be singular at u = 0. By mixed monotone method, the existence and uniqueness are established for the above singular three-point boundary value problems. The theorems obtained are very general and complement previous know results. In this paper, the singular three-point boundary value problem u〃(t) + f(t,u) = 0, t 2 (0, 1), u(0) = 0, u(1) = αu(η), is studied, where 0 < η < 1, α > 0, f(t, u) may be singular at u = 0. By mixed monotone method, the existence and uniqueness are established for the above singular three-point boundary value problems. The theorems obtained are very general and complement previous know results.
Antioxidant Activity of Hawthorn Fruit in vitro
Chunmei Li,한웅,왕명현 한국응용생명화학회 2010 Journal of Applied Biological Chemistry (J. Appl. Vol.53 No.1
The antioxidant activity of hawthorn fruit (Crataegus pinnatifida Bunge var. typica Schneider) extracts was investigated by several in vitro antioxidants properties, including DPPH free radical scavenging activity, total phenolic and flavonoid contents, hydroxyl radical scavenging activity, reducing power activity, iron-chelating capacity and nitrite scavenging activity. Among the extracts in this study, the 70% EtOH extract showed higher antioxidant activity than the others. The IC50 value of DPPH free radical scavenging activity was 99.26 µg/mL. Furthermore, the 70% EtOH extract also showed significantly high total phenolic and flavonoids contents and reducing power activity. However, the MeOH extract exhibited stronger effects on hydroxyl radical scavenging activity, iron-chelating capacity and nitrite scavenging activity. All the results implicated that, the hawthorn fruit may has the available potential to be utilize as a potential source of natural anti-oxidant.
Chunmei Zhang,Dan Xia,Huiling Chen,Guiling Chen 제어·로봇·시스템학회 2023 International Journal of Control, Automation, and Vol.21 No.9
This paper is mainly concerned with partial topology identification of stochastic multi-group models with multiple dispersals (SMGMMD) by adaptive pinning control. By using a graph-theoretic approach and adaptive synchronization techniques, some sufficient criteria for partial topology identification of SMGMMD with time delay are obtained. Meanwhile, the partial topological structures of SMGMMD without time delay and the whole topological structures of SMGMMD can also be identified successfully. Finally, coupled Lorenz systems with time delay are identified to demonstrate the feasibility and effectiveness of theoretical results.
Effect of β-carotene on Nicotine-Induced Embryotoxicities in Mouse Embryos
Chunmei Lin,Jung-Min Yon,A Young Jung,Jong Geol Lee,Ki Youn Jung,Beom Jun Lee,Young Won Yun,Sang-Yoon Nam 한국동물생명공학회(구 한국동물번식학회) 2011 발생공학 국제심포지엄 및 학술대회 Vol.2011 No.1
Nicotine, a major teratogen of cigarettes smoke induces embryonic abnormalities during the early stages of organogenesis. In this study, the protective effect of β-carotene against nicotine–induced embryos was evaluated by morphologic scoring, nile blue staining, lipid peroxidation, SOD activity assay and real-time PCR. The embryos exposed to nicotine (1 μM) revealed remarkable morphological anomalies compared to normal control group (p<0.05), but when β-carotene (1×10‒4 μM or 5×10‒4 μM) was added concurrently to the embryos exposed to nicotine, morphological parameters were significantly improved (p<0.05). Nicotine induced oxidative stress by increased lipid peroxidation, expression of proinflammatory cytokines (TNF-α and IL-1β), caspases-3 and decreased SOD activity. However, administration of β-carotene (1×10‒4 μM or 5×10‒4 μM) restored the SOD level and decreased oxidative damage in the embryos. These results indicate that β-carotene effectively counteracts the deleterious effects of nicotine on embryos and attenuates oxidative damage possibly through its antioxidant effects.