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홍성룡 한국현대언어학회 2000 언어연구 Vol.16 No.2
Coordination constructions have widely been studied in various linguistic theories. Most of these studies have dealt with extractions in coordination constructions by some constraints with movement. For example, these constructions have been approached with Coordinate Structure Constraint by Ross in 1967. On the other hand, in Generalized Phrase Structure Grammar(GPSG) new alternatives are suggested with some principles such as Head Feature Principle and Foot Feature Principle. The purpose of this study is to analyze these constructions with non-constituent coordination schema within Head-driven Phrase Structure Grammar(HPSG) framework, allowing each conjunct daughter to share the value of its mother.
홍성룡,조규섭 대한비과학회 2014 Journal of rhinology Vol.21 No.2
Recently, biomaterials for spacers following sinus surgery have been extensively researched. Such materialsmay reduce the incidence of early postoperative bleeding and formation of synechiae, and possibly promote mu-cosal healing. The aims of this study are to review recent advances in absorbent packing materials for the nasalcavity and to differentiate their effects on hemostasis, wound healing and prevention of adhesion.
능동-수동 경계에서의 반사가 다전극 DBR 레이저의 튜닝특성에 미치는 영향
홍성룡,김덕봉,최안식,윤태훈,김재창,김선호 한국광학회 1996 한국광학회지 Vol.7 No.3
본 논문에서는 특성행렬을 사용하여 다전극 DBR 레이저의 능동 영역과 수동 영역의 경계가 튜닝특성에 미치는 영향에 대하여 연구하였다. 능동-수동 경계면에서 굴절율의 변화가 급격한 경우에 경계면에서의 반사가 레이저의 위상특성과 임계이득 특성에 왜곡을 일으켜 연속 튜닝범위가 좁아지게 된다. 반면 완만한 굴절율 변화를 가진 경우에서는 능동-수동 경계의 반사에 의한 영향이 줄어 연속튜닝범위가 넓고 튜닝특성이 일반적인 DBR 레이저의 해석방법(능동-수동 경계를 무시하는 경우)에 의한 튜닝특성과 비슷함을 확인하였다. In this paper, we studied effects of active-passive interface on the tuning characteristics of a multielectrode DBR laser. An abrupt interface distorts the threshold gain and the phase change in a multielectrode DBR laser, which results in narrowing of the continuous tuning range. On other hand, an interface with the gradual index change gives tuning characteristics which is very similar to that obtained by ignoring the interface.
한국 성인 남성 폐쇄성 수면무호흡증 환자에서의 수면내시경 소견
홍성룡,이종길,이정훈,조규섭,노환중 대한이비인후과학회 부산,울산,경남 지부회 2012 임상이비인후과 Vol.23 No.2
Drug-induced sleep endoscopy (DISE) is one of the common techniques that visualize the upper airway dynamics during sleep in patients with obstructive sleep apnea (OSA). Authors tried to present the DISE results and to investigate the their relationship with polysomnography (PSG) findings. Materials and methods: Authors enrolled 31 male adults who were diagnosed with OSA between March 2011 and February 2012 at Pusan National University Yangsan Hospital. The data including age, body-mass index (BMI), Friedman staging, DISE findings and PSG results such as apnea-hypopnea index (AHI) and positional dependency were collected by retrospective chart reviews. Results:In DISE, 87.0% (27/31) showed the retropalatal airway obstruction and 48.4% (15/31) showed the retroglossal airway obstruction. Among them, 35.5% (11/31) showed obstructions in both the retropalatal and retroglossal airway. The retroglossal airway obstruction was not related with age, BMI or AHI but with Friedman’s palatal position and positional dependency (p=0.020 and 0.029, respectively). Conclusions:Freidman’s palatal position may be a good predictor of the retroglossal airway obstruction. This study suggests that a palatal airway surgery plus a positional therapy or a mandibular advancement device can be tried even in severe OSA patients with the retroglossal airway obstruction.
The Interactive Use of Microcomputer for Distance Learning
홍성룡 한국디지털콘텐츠학회 2007 한국디지털콘텐츠학회논문지 Vol.8 No.2
For human beings, language is the most important means of communication. Bloom and Lahey see successful language development as an interaction between form, content, and use. Language knowledge is a social phenomenon produced in a socio-cultural environment through interaction. Teachers have traditionally concentrated on the structure of their student's writing rather than on the message. If writing is to be seen as an interactive social process between humans, it is the content which is responded to. Language acquisition could be a major problem for hearing-impaired children and their acquisition of written language is characteristically problematic. This study is to search the use of microcomputers in written conversational methods, which enable the hearing-impaired student to hear their conversations in a visual form and which usefully extend their written language learning opportunities.
비강 및 부비동에 발생하는 점막형 악성 흑색종의임상 양상 및 치료 결과
홍성룡,김시환,원태빈,심우섭,김용민,김정훈,이철희,민양기,이재서 대한이비인후과학회 2006 대한이비인후과학회지 두경부외과학 Vol.49 No.12
Background and Objectives:Mucosal malignant melanoma of the nasal cavity and paranasal sinuses is an uncommon tumorwith poorer prognosis compared with its cutaneous counterpart. The purpose of this study is to investigate the clinical features andtreatment outcomes of mucosal malignant melanoma of the nasal cavity and paranasal sinuses. Subjects and Method:Eighteenpatients who were diagnosed and treated as mucosal malignant melanoma of nasal cavity and paranasal sinuses from 1995 to 2004were included. Male to female ratio was 10 to 8. Their ages ranged from 43 to 87 years with median of 62 years. The medicalrecords were reviewed retrospectively with respect to presenting symptoms, stage, treatment modalities and outcome. Result:The most common symptoms were epistaxis and nasal obstruction. The mean duration of symptom was 4.2 months. Commonlyinvolved sites were middle turbinate, inferior turbinate, maxillary sinus and ethmoid sinus. Eight cases belonged to stage I, ninecases to stage II and only one case to stage III. Among them, seventeen patients underwent surgery with or without radiotherapyand immunotherapy. Of the seventeen patients who underwent surgery, twelve had recurrence and the mean period for recurrencewas 8.2 months. During the follow-up periods, five had distant metastases. Five-year survival rate was 27.2% and the survivalrates according to age, sex, tumor size and stage were not statistically significant. Conclusion:Mucosal malignant melanomas ofthe nasal cavity and paranasal sinuses developed commonly in the 6th to 8th decades. Epistaxis and nasal obstruction were the mostcommon presenting symptoms. Almost all cases belonged to the stage I or II and the mainstay of the treatment was surgery.However, it was associated with frequent recurrences and a poor prognosis. (Korean J Otolaryngol 2006;49:1176-80)