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김선회(Kim, Sun-Hoi) 한국음운론학회 2015 음성·음운·형태론 연구 Vol.21 No.1
This study explores the characteristics and trends of academic research in phonology over a period of twenty years in Korea, quantitatively investigating 435 articles published in Studies in Phonetics, Phonology and Morphology from 1995 to 2014 by The Phonology - Morphology Circle of Korea. The investigation focuses on the words and phrases contained in the article titles. Their occurrence frequencies are counted and their co-occurrence networks are analyzed with measurements of meaningful index values such as degree, betweenness centrality, eigenvector centrality and edge weight. The study shows that the trends and directions of academic research in phonology in Korea have changed not radically but steadily and dynamically. While Optimality Theory-related words and phrases occurred frequently in article titles and played an important role in the network structure of co-occurring words and phrases before the period of 2010-2014, during this period Optimality Theory gave way to English-Korean inter-language studies of perception and production, an area towards which academic interest has steadily increased since 2000.
김선회(Sun-Hoi Kim) 한국중원언어학회 2010 언어학연구 Vol.0 No.16
The goal of this paper is to present an Optimality-theoretic approach to the phenomenon that the change of a vowel system is activated by the most unstable vowel in the vowel system and it is also influenced by external factors, such as dialect contact. For achieving this goal, this paper focuses on the analysis of the loss of a low back vowel in Korean. In the framework of Optimality Theory (McCarthy & Prince 1993, Prince & Smolensky 1993/2004), this phenomenon is analyzed in relation to conflicting constraints. The analysis proposed by this paper shows that the vowel shift in Middle Korean is a result of the constraint ranking where a listener-oriented faithfulness constraint outranks speaker-oriented faithfulness ones. It further shows that the loss of the Korean low back vowel is influenced by dialect contact and its influence is formalized by the constraint ranking where an output-output faithfulness constraint outranks input-output faithfulness ones.
수소생산과 전기생산이 가능한 일체형 재생연료전지 Unitized Regenerative Fuel Cell
김선회 ( Sunhoe Kim ) 한국공업화학회 2017 공업화학전망 Vol.20 No.3
수소에너지는 차세대 에너지원으로써 지구온난화의 방지에 크게 기여할 수 있는 기술이다. 에너지안보가 중요해지는 시기에 수소를 이용한 에너지기술의 확보가 이루어진다면 우리나라의 에너지특성상 중요한 기술이라고 할 수 있다. 또한 태양광 및 풍력과 연계시킬 수 있는 기술로서 재생에너지의 활성화에 크게 기여할 수 있을 것으로 판단된다. 본 연구에서 소개하고자 하는 기술은 연료전지의 일종인 일체형 재생 연료전지(Unitized Regenerative Fuel cell, URFC)로써 시스템의 구성과 핵심소재에 대하여 검토하였다. URFC는 전기를 생산하는 연료전지 모드와 수소를 생산하는 수전해 모드 양방향의 구동이 가능하다. URFC는 매우 효율적이고, 친환경적인 에너지 저장장치라고 할 수 있다. 또한 URFC는 90 ℃ 이하의 저온작동형으로서 시스템의 설계 및 운전이 어렵지 않고, 다양한 용량으로 개발이 가능하기 때문에 대형화가 용이하여 대규모 에너지 저장에 적합한 시스템이다.
[i]/Ø 교체 접미사의 입력형 설정에 관한 쟁점 재고찰: /i/로 시작하는 입력형을 위한 /h/-탈락으로부터의 증거
김선회 ( Sun Hoi Kim ) 한국 현대 언어학회 2009 언어연구 Vol.25 No.3
This paper revisits an issue on the inputs of [i]/Ø-alternating suffixes in Korean. This issue has been left with wide disagreement among previous studies. This paper attempts to support one of the conflicting views: the /i/-initial forms should be the inputs of these suffixes. To provide crucial evidence for this view, this paper analyzes the relatedness of /h/-deletion and [i]/Ø alternation, focusing on the forms where a stem-final /h/ is followed by an [i]/Ø-alternating suffix. In this analysis, it is shown that the stem-final /h/ would not be deleted if the inputs of these suffixes could not begin with /i/. Because the actual outputs of /h/-final stems followed by these suffixes do not include the final [h], this situation tells us that the inputs of these [i]/Ø-alternating suffixes should begin with /i/. Accordingly, this analysis leads to the conclusion that the /i/-initial forms are the inputs of [i]/Ø-alternating suffixes. (Chung-Ang University)
김선회 ( Kim¸ Sun-hoi ) 한국현대언어학회 2021 언어연구 Vol.37 No.2
The Journal of Studies in Language 37.2, 127-148. This study focuses on the frequencies of basic words in Korean and English. Their distributions were analyzed quantitatively to compare Korean and English. The correlation analysis shows that the inter-correlation between Korean and English is very high. It implies that the linguistic-cultural difference between these two languages rarely affects the use of basic words. The analysis of visualized frequency distributions shows that the frequencies of basic words exhibit heavy tailed distributions and seem to follow the power-law distribution in both languages. However, the quantitative analysis tells us that their frequency distributions do not follow the power-law distribution but the log-normal distribution. The result suggests that selecting probability distribution best fitted to frequency data should depend on well-established statistical procedures, but not only on visually inspecting of plotted distributions. (Chung-Ang University)
위전절제술 및 루프 식도공장 문합술을 시행한 환자와 정상인에서 Small Bowel Transit Time 의 비교
김선회(Sun Whe Kim),정준기(Joon Ki Jung),양한광(Han Kwang Yang),김진복(Jin Opk Kim),이명철(Myung chul Lee) 대한소화기학회 1988 대한소화기학회지 Vol.20 No.1
N/A There have been great advances in the operative technique and prevention of early postoperative complications of total gastrectomy. But much more efforts are needed to improve late postoperative complications, nutritional abnormalities after total gastrectoniy. There are many possible causes for malnutrition after total gastrectomy, such as poor oral intake, rnalabsorption due to bacterial proliferation in small bowel and relative pancreatic insufficiency etc. Changes in small bowel transit tirne can be considered as another candidate. The purpose of this study is to compare the small bowel transit time between fifteen patients who didnt show any evidence of recurrence after total gastrectomy and loop esophagojejunostomy due to gastric cancer and six normal volunteers who had no specific gastointestinal symptorns and signs. Fried egg-white which was tagged with 99mTc-SC, rice and water was used as test meal. The transit of the test meal was monitored up to 8 hours by gamma camera which was connected to a microcomputer. 1) The small bowel transit time of head of meal was 221+34.39 minutes in the patients after total gastrectonly and 232.5+26.26 minutes in the control subjects (P>0.05) 2) The small bowel transit time of midportion of meal was 326.0+58.04 minutes in the patiens after total gastrectoinay and 271.8+46.64 minutes in the control suuhjects (P >0.05) 3) There was a tendency of delayed transit time of the later part of meal in the patient group. There was no significant differences in small bowel transit time of head and midportion of meal between patients with weight loss after total gastrectomy ancl normal volunteers. Therefore weight loss as a manifestation of malnutritionn after total gastrectomy is not caused by changes in small bowel transit time.
김선회(Kim, Sun-Hoi),남성현(Sunghyun Nam) 한국음운론학회 2020 음성·음운·형태론 연구 Vol.26 No.3
This paper analyzes the distributional characteristics of Korean words and syllables in relation to word frequency. Five sub-lexicons of Korean are made on the basis of word frequency for this study. The sub-lexicons are compared with respect to the distributions of words and syllables. The analysis shows that the sub-lexicon of high frequency words (i.e. use frequency of 1,500 times or more) exhibits a marked difference in the distributional characteristics of words and syllables. According to the analysis, when other words are added to the sub-lexicon of high frequency words, meaningful changes are observed in the distributional characteristics. The analysis shows that word frequency is an important factor that should be considered in the analysis of the distributional characteristics of words and syllables in Korean.