• Proceedings of the Korean Society for Cognitive Science Conference
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• 2002.05a
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• pp.125-130
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• 2002

우리의 언어생활을 비추어 볼 때 한자어 정보처리는 많은 연구가 이루어야 함에도 불구하고 고유어 언구에 비해 소흘해 다루어져 왔다. 본 연구는 단일 한자어를 구성하는 각 음절이 단어의 재인에 어떤 영향을 미치는지 점화과제를 통하여 알아보았다. 본 실험은 기존의 한자어 연구에 빈도특성과 고유어와 외래어의 글자특성까지 고려하여 종합적으로 살펴보았다. 먼저 실험1의 어휘판단관제에서는 고유어와 한자어의 양상이 비슷하며 외래어는 다른 처리를 하는 것으로 드러났다. 고유어와 한자어는 빈도에 따라 영향을 받지만 외래어는 빈도의 영향에 변함없이 일정하게 나타났다. 이런 결과는 한국인은 고유어와 한자어를 동일한 양상으로 처리하며 이런 이유는 외래어의 한국어와는 다른 음운규칙이나 음절규칙의 영향으로 해석할 수 있겠다. 실험 2에서는 한자어 형태소와 의미적으로 유사한 조건(강도-강력)과 철자적 유사 조건(강도-강변), 고유어 유사 조건(강도-강정)조건을 점화과제를 이용하여 어휘판단을 하게 하였다. 실험 결과 모든 조건이 통제조건에 비하여 빠르게 나왔다. 그리고 의미적 유사 조건이 촉진적 점화효과를 일으키고, 철자적 유사조건은 억제 효과를 일으켰으며 고유어는 특이하게도 판단시간이 빠르게 나와 한자어와는 다른 처리과정이 있음을 보여주고 있다. 이런 결과는 지연조건에서도 동일하게 일어나고 있다. 이런 결과는 한자어는 어휘접근 이후에도 실험의 과제 특성상 한자어 형태소는 단어 수준 아래 위치하기는 힘든 반면, 고유어는 단어 수준 아래에 존재한다고 할 수 있다. 결국 한자어와 고유어는 기본적으로 외래어와 다른 처리를 보이면 한자어와 고유어 내에서도 한자어는 단어접근 전에 의미접근의 단계를 거쳐야 하지만 고유어는 각 음절이 형태소가 아니기 때문에 바로 어휘에 접근하는 것이라고 할 수 있겠다.ulic geometry and sediment transport has been applied to: (1) gravel-bed transport measurements in a cobble-bed stream at Little Granite Creek, Wyoming; (2) sand and gravel transport by size fraction in the sharp meander bends of Fall River, Colorado; (3) changes in sand dune geometry and resistance to flow during major floods of the Rhine River in the Netherlands; (4) changes in hydraulic geometry of the Rio Grande downstream of Cochiti Dam, New Mexico; and (5) analysis of the influence of water temperature and the Coriolis force on flow velocity and sediment transport of the Lower Mississippi River in Louisiana. Recent developments also include two textbooks on "Erosion and Sedimentation" and "River Mechanics" by the author and state-of-the-art papers in the ASCE Journal of Hydraulic Engineering.rk on is diversified, the importance of skills are diversified in each field of jobs.

• 재활복지
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• v.20 no.4
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• pp.229-246
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• 2016

The aim of this study is to conduct superordinate word selection task to compare their performance and reaction time, and superordinate word writing task to compare the differences in their performance and error pattern in 40 elderly adults and 43 young adults. As a result, first, in both tasks, elderly adults had a smaller number of correct responses. Second, elderly adults showed slower reaction time than young adults. Third, in superordinate word writing task, elderly adults showed more relevant errors than irrelevant errors. The reason elderly adults had a smaller number of correct responses in both tasks was that the links among the pieces of information in the semantic lexicon weakened or deteriorated due to normal aging. Slower reaction time was based on neurophysiological changes of the brain and cognitive processing speed. In addition, the relevant errors showed that they could access the lexicon for target words and produce explanation the relevant characteristics, even though they could not retrieve the target words.

• The Journal of the Acoustical Society of Korea
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• v.40 no.4
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• pp.330-336
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• 2021

In bistatic sonar operation, the scattering strength of a sonar target is characterized by the probe signal frequency, the aspect angle and the bistatic angle. Therefore, the target detection and identification performance of the bistatic sonar may vary depending on how the positions of the target, sound source, and receiver are changed during sonar operation. In this study, it was evaluated which variable is advantageous to change by comparing the target identification performance between the case of changing the aspect angle and the case of changing the bistatic angle during the operation. A scenario of identifying a hollow sphere and a cylinder was assumed, and performance was compared by classifying two targets with a support vector machine and comparing their accuracy using a finite element method-based acoustic scattering simulation. As a result of comparison, using the scattering strength defined by the frequency and the bistatic angle with the aspect angle fixed showed superior average classification accuracy. It means that moving the receiver to change the bistatic angle is more effective than moving the sound source to change the aspect angle for target identification.

• The Journal of the Korea Contents Association
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• v.15 no.8
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• pp.170-178
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• 2015

Interactive media is a buzz word in current creative industry, but many of related fields have different understanding of the meaning of "interaction" in interactive media. This aspect is often the cause of difficulties communication and becomes an obstacle to joint researches. Thus this study attempts to develop a theoretical categorization of the meanings of interaction in interactive media. For this, this study first gathered various interpretations about what is interaction and build a rough classification. Then the classification is supplemented and amended over three times through FGIs of the interactive media related experts. This theoretical categorization is expected to help smooth cross-disciplinary studies and integrated technology development in interactive media.

• Korean Journal of Culture and Social Issue
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• v.27 no.4
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• pp.505-528
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• 2021

The current study examined the differential effects of giving and receiving social support in the elderly when relationships(family, friend/neighbor) are important. For this purpose, the mediation effects of meaning in life on the relationship between giving and receiving social support and self-esteem were analyzed. Self-reporting data of 310 adults aged over 60 living in Busan and Gyeongnam in South Korea were collected regarding giving and receiving social support, meaning of life and self-esteem. The mediation analysis showed that giving social support had a positive effect on self-esteem with the partial mediation effect of meaning in life. Receiving social support, however, showed no significant mediation effect of meaning in life. This pattern was similar regardless of both family and non-family relations. The result that giving social support enhances self-worth in the elderly through meaning in life suggests the importance of social interaction with intimate others as a source of happiness in the elderly.

• 한국사회정책
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• v.24 no.1
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• pp.1-31
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• 2017

This paper attempts to analyze citizens' giving behavior by household income level. Particularly, it focuses on participation and amount of secular giving by using 'Social Survey'in 2011, 2013, and 2015 from the Bureau of Statistics and employing Heckman selection model for statistical analysis. This study shows that citizens' participation has a proportional tendency by their income level. Similar to participation of secular giving, citizens' giving amount has also a proportional tendency by their income level. However, the degree of proportional tendency seems not to be significant in the case of amount of secular giving. This empirical analysis promotes understanding of participation and amount of secular giving by citizens' income section in Korea by showing the differences. This paper provides meaningful empirical understanding regarding citizens' secular giving behavior by their income level. In addition, it offers important clues to motivate relevant prospective studies and develop social agenda which contribute to strengthening giving culture in Korea.

• Journal of KIISE
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• v.43 no.12
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• pp.1376-1384
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• 2016

Computers require analytic and processing capability for all possibilities of human expression in order to process sentences like human beings. Linguistic information processing thus forms the initial basis. When analyzing a sentence syntactically, it is necessary to divide the sentence into components, find obligatory arguments focusing on predicates, identify the sentence core, and understand semantic relations between the arguments and predicates. In this study, the method applied a case frame dictionary based on The Korean Standard Dictionary of The National Institute of the Korean Language; in addition, we used a CRF Model that constructed subcategorization of predicates as featured in Korean Lexical Semantic Network (UWordMap) for semantic role labeling. Automatically tagged semantic roles based on the CRF model, which established the information of words, predicates, the case-frame dictionary and hypernyms of words as features, were used. This method demonstrated higher performance in comparison with the existing method, with accuracy rate of 83.13% as compared to 81.2%, respectively.

• Phonetics and Speech Sciences
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• v.12 no.4
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• pp.27-36
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• 2020

The aim of this study is to investigate the perceptive aspects of the polysemic sentence final ending "-(eu)lgeol" produced by Chinese Korean learners. "-(Eu)lgeol" has two different meanings, that is, a guess and a regret, and these different meanings are expressed by the different prosodic features of the last syllable of "-(eu)lgeol". To examine how Korean native speakers perceive "-(eu)lgeol" sentences produced by Chinese Korean learners and the most saliant prosodic variable for the semantic discrimination of "-(eu)lgeol" at the perceptive level, we performed a perceptual experiment. The analysed material constituted four Korean sentences containing "-(eu)lgeol" in which two sentences expressed guesses and the other two expressed regret. Twenty-five Korean native speakers participated in the perceptual experiment. Participants were asked to mark whether "-(eu)lgeol" sentences they listened to were (1) definitely regrets, (2) probably regrets, (3) ambiguous, (4) probably guesses, or (5) definitely guesses based on the prosodic features of the last syllable of "-(eu)lgeol". The analysed prosodic variables were sentence boundary tones, slopes of boundary tones, pitch difference between sentence-final and penultimate syllables, and pitch levels of boundary tones. The results show that all the analysed prosodic variables are significantly correlated with the semantic discrimination of "-(eu)lgeol" and among these prosodic variables, the most salient role in the semantic discrimination of "-(eu)lgeol" is pitch difference between sentence-final syllable and penultimate syllable.

• Proceedings of the Korean Society for Cognitive Science Conference
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• 2006.06a
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• pp.119-123
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• 2006

문자는 의사소통의 중요한 매개체 중 하나로 사람이 문자를 인식할 때, 글자의 크기나 모양, 위치, 글 자체 등의 매우 다양한 지각적인 변화에 의한 영향을 크게 받지 않는다. 이는 문자에 대한 처리가 다른 사물과는 다소 다르게 일어나며 머릿속에 추상적인 형태(abstract form)로 저장되어 있음을 의미한다. 이러한 처리과정은 시각단어재인 과정에서 어휘 지식에 접근하기 위한 중요한 단계로 여겨지면서 이와 관련된 대뇌 영역의 국재화 양상에 대한 연구들이 진행되고 있다. 본 연구에서는 한글 시각단어재인에 있어 Cohen과 Dehaene 등이 'visual word form area'주장하고 있는 좌측 ventral occipito-tempoarl region의 대뇌 활성화 양상을 살펴보았다. 실험 결과, 좌측 'VWFA'는 어휘의 친숙성에 우뇌의 대측 지점은 어휘성(lexicality)에 민감한 것으로 나타났다.

• Proceedings of the Korea Contents Association Conference
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• 2015.05a
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• pp.173-174
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• 2015

간에서 발생하는 악성종양과 양성종양의 대표적 질환 으로는 간세포암(Hepatocelluar carci- noma, HCC)과 간혈관종(Hepatic hemangioma, HH)이다. CT검사를 이용한 진단에 있어서 두 질환은 시간변화에 따른 조영증강양상 차이가 나타난다. Liver 3-phase computed tomography검사를 시행하여 시간별 조영증강 양상을 알아보았다. 본 연구는 조영제 주입전, 동맥기(35sec), 문맥기(70sec), 지연기(180sec)에 대한 Enhan -cement Pattern 변화와 HU(Hounsfield unit)값 변화, pixel값 변화의 관찰로서 검증하였다. 실험결과 HU를 사용한 방법에서 의미있게 구분되었고 임상적용 시 판독에 도움을 줄 것으로 생각한다.