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      • KCI등재

        Hong JeongHa's Tianyuanshu and Zhengcheng Kaifangfa

        홍성사,홍영희,김영욱,Hong, Sung Sa,Hong, Young Hee,Kim, Young Wook The Korean Society for History of Mathematics 2014 Journal for history of mathematics Vol.27 No.3

        Tianyuanshu and Zengcheng Kaifangfa introduced in the Song-Yuan dynasties and their contribution to the theory of equations are one of the most important achievements in the history of Chinese mathematics. Furthermore, they became the most fundamental subject in the history of East Asian mathematics as well. The operations, or the mathematical structure of polynomials have been overlooked by traditional mathematics books. Investigation of GuIlJib (九一集) of Joseon mathematician Hong JeongHa reveals that Hong's approach to polynomials is highly structural. For the expansion of $\prod_{k=11}^{n}(x+a_k)$, Hong invented a new method which we name Hong JeongHa's synthetic expansion. Using this, he reveals that the processes in Zhengcheng Kaifangfa is not synthetic division but synthetic expansion.

      • Three Steps of the Postcolonial Resistance in Seamus Heaney's Poetry

        Hong, Sung-sook 淸州大學敎 學術硏究所 2005 人文科學論集 Vol.31 No.-

        세계화는 문화의 다양성을 수용하기보다는 파괴할 가능성이 있어 과거 식민의 경험이 있는 나라들은 세계화의 확산을 자기 정체성 상실로 여길 수 있다. 심지어 세계화는 지배국에게도 그것에 대한 저항의 한 양상으로 테러리즘같은 또 다른 도전을 경험하게 했다. 세계화 이후의 현상에 대한 사무엘 헌팅턴의 '문명 충돌' 이론이 새롭게 조명됨도 위와 같은 맥락에서 이해될 수 있다. 우리 한반도역시 미국과 중국의 힘이 충돌할 수 있는 기축으로의 가능성이 고조되고 있으며 미국주도의 세계화에 대한 도전의 장으로 점차 그 윤곽을 나타내고 있다. 이 논문은 아일랜드와 우리 대한민국은 과거 식민 역사와 그로인한 분단국으로서 여러가지 유사한 경험과 통일에 대한 소망을 공유하고 있어서 아일랜드를 비교 연구함은 우리의 문제 해결에 도움을 줄 수 있을 것이라는 가정 하에 쓰여 졌다. 그리고 이 논문의 목적은 셰무스 히니의 시를 읽어 탈 식민 저항의 가장 이상적인 모델을 찾으려는데 있다. 그 하나의 근거로서 셰무스 히니 시는 지역 작가의 저항에서 시작해 자유를 억압하는 큰 힘에 도전하면서 시적 자유를 추구하고 있기 때문이다. 한편 셰무스 히니 시를 다시 읽은 결과 그의 초기시 에서는 지역적 정체성을 추구하고 정의 내리려는 강한 의지를 통한 지역작가로의 저항정신을 찾아낼 수 있었다. 그러나 다음 단계에 이르면 그의 시들은 지배문화 확산의 결과인 혼종화를 수용하려는 태도를 보임으로써 전유의 단계를 거쳐 간다 그리고 1987년 이후의 작품세계에서는 실용성과는 다른 시적 자유의 추구를 통한 새로운 휴머니즘 및 지역문화의 창조라는 단계로 변해갔음을 확인하게 되었다. 한편 그의 저항은 프란츠파농식의 과격성과 정치성을 배제하고 보다 온건하고 문화적 저항의 특색을 지니고 있음도 알 수 있었다.

      • SCOPUSSCIEKCI등재

        악관절 과두강직 : 편측성 과두강직을 동반한 안모비대칭 치료 증례 UNILATERAL POSTTRAUMATIC CONDYLAR PSEUDOANKYLOSIS

        홍성규,홍성준 대한치과교정학회 1993 대한치과교정학회지 Vol.23 No.3

        '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

        The ankylosis of temporomandibular joint occured by several causes directly developes TM joint disfunction, In cases with prolonged condylar ankylosis, especially at growing age the condylar ankylosis evokes malfunction of growth center area, and then developes the abnormal facial morphology and malocclusion. Therefore it must be cured. Almost authors have agreed to the necessity of surgical correction of the TMJ anlylosis. but they did not decide the one surgical method to get the best results. The Tx. method suggested by many authors are the using interposition after resection of condyle to remain a lever of 3rd class in Mn. kinetics, the autogenous condylar graft and the alloplastic condylar graft. Some authors have got the satisfied results only with the condylectomy of the involved TMJ. This study also operated only the detachment of fibrous adhesion on ankylosed condylar side and then established occlusion in the case with the unilateral TMJ ankylosis and fibrous joint adhesion and facial asymmetry evoked after the fracture of condylar head at early age. This study got a improved mouth opening and a stable postsurgical result after 1 year. Also, this study reviewed many author's study about the chanracteristics, etiology, diagnosis and Tx. method for the ankylosis of TMJ.

      • KCI등재

        Critical role of bile acid (BA) in the cellular entry and permissiveness of Hepatitis B virus in vitro

        Hong‑Jai Lee,Bo‑Young Shin,Jae‑Seung Moon,Ailyn Fadriquela,Selikem Abla Nuwormegbe,Chun‑Chang Ho,Jin‑Su Shin,Jee‑Sang Yoon,Sang‑Kyou Lee,Soo‑Ki Kim 대한독성 유전단백체 학회 2020 Molecular & cellular toxicology Vol.16 No.3

        Background Lack of universal replication system for hepatitis B virus with narrow host range and organ tropism has hampered to uncover the pathogenesis of HBV. Previously, we reported the essentiality of humoral milieu and its components toward HBV and hepatitis C virus survival/viability in vitro. Of these components, the precise role of enterohepatic humoral milieu such as bile acid (BA) on HBV cultivation in vitro and in vivo is unknown. Objective We explored whether BA, specifically taurochenodeoxycholic acid (tCDCA) would directly regulate the viral DNA and surface antigen expression of HBV in vitro, consequently rendering HBV to enter into human or murine immortalized hepatocytes, and non-hepatocytes. Result We found that higher concentration of taurochenodeoxycholic acid (tCDCA) is able to preserve the genomic stability of HBV in cell-free DMEM, showing higher the surface antigenicity than taurocholic acid (tCA). In line, we found that in vitro cell culture condition (100 μmol/L of tCDCA coupled with 1 × 108 g e/mL HBV) would be optimal for HBV entry into target cells. Using this, human (HepG2, Huh7), and rodent (Hepa1c1c7, H4-II-E) hepatoma cell lines were infected by HBV, as evidenced by the presence of HBV biomarkers (HBsAg, and HBV DNA in culture supernatant, as well as HBcAg in cell). Further, cellular entry test revealed that HBV is able to infect 12 different non-hepatic cell lines regardless of species, and organ/tissue, consequently reproducing progeny as confirmed by HBV biomarkers. Last, reinfection test showed that the progenies of HBV from immortalized HepG2, and Hepa1c1c7 cells are able to enter into each or vice versa naïve HepG2, and Hepa1c1c7 cells with or without BA. Conclusion This study demonstrates that enterohepatic humoral milieu such as BA, specifically tCDCA would directly regulate HBV DNA and its surface antigen expression in vitro, consequently rendering HBV to enter into human or murine immortalized hepatocytes, and non-hepatocytes. This is the first note to render HBV permissive to human or rodent hepatic and non-hepatic cells via sole manipulation of humoral milieu, thus establishing the platform for in vitro robust replication system of HBV.

      • KCI등재

        Underlying representation in geminates: from OT perspective

        Sung-Hoon Hong,Chang-Kook Suh 한국음운론학회 2004 음성·음운·형태론 연구 Vol.10 No.1

        '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

        Hong, Sung-Hoon, and Chang-Kook Suh. 2004. Underlying represen-tation in Geminates: from an OT perspective. Studies in Phonetics, Phonology and Morphology. 10.1. 129.144. This research has examined the status of Underlying Representation (UR) in Optimality Theory focusing on the representation of consonant geminates. For this purpose, we have examined geminate/singleton alternation in Ponapean employing Lexicon Optimization (LO), an algorithm proposed to select a UR among multiple inputs. We have seen that simple application of LO is problematic in singling out a UR for the case of alternation. This leads us to the version of LO that is performed on the paradigms, rather than on an individual forms (Tesar and Smolensky 1996, 2000, Inkelas 1995, 1998). After a thorough implementation of LO, we have found that the URs are simply identical to the input forms; geminate UR for the alternating case and singleton UR for the nonalternating case. Further, it was shown that a unique underlying representation of geminates, regardless of their positions in which they occur, can account for the exceptional geminate behaviors. (Hansung University and Cheonan University)

      • KCI등재

        정보이론 기반 한국어 준말의 분석

        홍성훈 ( Sung Hoon Hong ),박선우 ( Sunwoo Park ) 경희대학교 언어연구소 2016 언어연구 Vol.33 No.2

        In casual speech of Korean, words are often reduced to shorter forms by reducing one or more syllables from the original words. This word reduction comes in three types: simple deletion of one or more syllables from the source word, reduction motivated by hiatus avoidance, and reduction created by deletion of subsyllabic segment(s) with subsequent resyllabification. The third type, which we call "subsyllabic reduction (SSR)," is particularly interesting because it is not clear what motivates this specific deletion of segment strings and the subsequent phonological restructuring. This paper examines the issues surrounding SSR from the perspective of information theory (Shannon 1948) and proposes that SSR occurs to improve string well-formedness and collocational strength between segments, which are measured respectively by information-theoretic notions of ``positive logarithm`` (plog; Goldsmith 2002, 2011) and ``mutual information``. To elaborate this proposal, we compiled a list of reduced words created by SSR and examined how plog and mutual information vary with SSR. We obtained a partially positive result: Among the five types of SSR, the values of plog and mutual information change as we expected in three types, which account for 270 out of 309 cases of SSR. We suggested a tentative explanation for the remaining cases based on reverse derivation and word-edge effect. (Aitchison 2011). (Hankuk University of Foreign Studies · Keimyung University)

      • KCI등재후보

        접속구문에 관한 연구

        홍성룡 대한언어학회 2001 언어학 Vol.9 No.3

        Hong, Sung-Ryong. 2001. A Lexical Constraint-Based Approach to Coordination Constructions. The Linguistic Aasociation of Korea Journal, 9(3), 52-70. Coordination constructions have widely been studied in v linguistic theories. The previous studies have focused on how to analyze the coordination constructions where the coordinated expression clearly Identified as constituent. Accordingly, these studies cannot provide an appropriate analysis to the coordinated constructions which has a gap in each conjunct This paper first reviews how constituent constructions has been approached in the Head-driven Phrase Structure Gramar(HPSG). Second is to show how to apply HPSG principles to the non constituent coordination constructions in English. In particular, it shows how the structure of constituent & non-constituent coordination can be explained either by the HPSG Coordination Rule o with the Gap Principle just proposed, but not specified by Ivan A. Sag & Thomas Wasow(1999). Finally this study is to analyze both the constituent coordination and non-constituent coordination constructions with conjunction of "Kuliko" in Korean . (Namseoul University)

      • KCI등재
      • 조응사 등위구문에 관한 연구 : 핵어중심 구구조 문법이론을 중심으로

        홍성룡 남서울대학교 2004 남서울대학교 논문집 Vol.10 No.3

        Hong, Sung-Ryong. 1998. A Study of the Coordination Constructions with Reflexives. The coordination constructions have widely been studied in various linguistic theories. Most of these studies have not dealt with the coordination constructions with reflexives. Accordingly, these studies cannot provide an appropriate analysis to the coordinated construction where the subject is composed of the complex NP and has its reflexive pronoun in the same sentence. This paper first reviews the previous analysis on these constructions such as GB, Generalized Phrase Structure Grammar, Head-driven Phrase Structure Grammar(HPSG). In particular, it shows how the AGR value of the coordinated subject NP depends on the conjunction. Finally this study is to analyze the constructions, where some reflexive or pronoun occurs with the above subject, by extending the INDEX feature structure into two subsort INDEX, that is INDEX for agreement and INDEX for Binding.(Namseoul University)

      • KCI등재

        성분 접속구문과 비성분 접속구문에 관한 연구

        홍성룡 대한언어학회 1998 언어학 Vol.6 No.2

        Hong, Sung-Ryong. 1998. A Study of constituent vs. non-constituent Coordination. Linguistics, 6-2, 119-140. Coordination constructions have widely been studied in various linguistic theories. The previous studies have focused on how to analyze the coordination constructions where the coordinated expression is clearly identified as a constituent. Accordingly, these studies cannot provide an appropriate analysis to the coordinated constructions where the conjunctor 'and' coordinates the two expressions which do not form a constituent. The purpose of this study is to provide a novel way to deal with these data in Head-driven Phrase Structure Grammar (HPSG) developed by Pollard and Sag (1987, 1994) and many others. This study extends the theory of the Head-driven Phrase Structure Grammar so as to describe and explain the data concerning with coordination constructions by formulating a rule compatible to the general assumptions of HPSG. (Namseoul University)

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