• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.38 no.6
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• pp.689-696
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• 2020

It is known through prior research that the crust of the Korean Peninsula moves southeast at an annual average of 3 cm/year. The 2011 Great East Japan Earthquake caused a great change in the crust of the Korean Peninsula. Since then, the frequency of earthquakes has increased on the Korean Peninsula. Therefore, by using NGII and IGS GNSS observation data of the recent 15 years, to analyze the trends of changes in the deformation of the Korean Peninsula before and after the outbreak of the Great East Japan Earthquake. Data processing utilized Bernese Software V5.2, a widely used scientific and technical software around the world. As a result, the global movement of the Korean peninsula differed by about 4mm and the direction of movement by about 10° compared to before the Great East Japan Earthquake. As for the internal distortion of the Korean Peninsula, the East-West expansion of the Korean peninsula's crust was observed during the Great East Japan Earthquake, but it is believed that it has not fully returned to the level before the Great East Japan Earthquake.

• Research in Community and Public Health Nursing
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• v.9 no.1
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• pp.223-231
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• 1998

결혼한 여성의 우울과 관련된 주 요인의 하나는 그들의 다양한 역할이 정신적인 건강에 부정적인 영향을 심리적으로 미친다고 발표되어 있다. 그럼에도 불구하고 한국 이민 주부에 대한 이러한 영역에서의 연구가 매우 부족한 실정이다. 중서부의 주요 도시인 시키고의 도심지에 위치한 11곳의 한국인 교회에서 편의 표출 방법으로 다음과 같은 기준에 맞는 대상자를 선택하였다. 나이는 25-55세 사이, 결혼하여 남편과 함께 살고 있으며, 매주 20시간 이상씩 일하고 있는 여성 등의 기준을 충족시키는 응답자의 수는 282명이었다 대상자들에게는 5가지의 설문 즉 인구통계학적, 우울에 대한 역학 연구, 성 역할 지향성의 지수, 역할 분담 및 대처 전략 등에 관한 질문이었다. 중다회귀분석 (Multiple Regression Analysis)에서 통계학적으로 유의한 관계를 보인 것은 다음과 같았다. 주부의 자녀가 적을수록 우울의 수준은 높았고, 가족의 수입이 많을수록 우울의 수준은 낮았으며, 주부가 일하는 것이 경제적 필요를 충족시키기 위함이라고 스스로 지각(주부들은 일하는 역할이 합법적으로 판단되어지기를 원했고 또 지각했는데 이와 대조하여 일의 역할을 비합법적으로 지각하는 것)할수록 우울의 수준은 더 높았다. 비록 일하는 것이 저녁 늦게 자고 아침 일찍 일어남을 의미할지라도 모든 가사를 완수하기 위하여 열심히 일한다고 하면 할수록 우울의 수준은 더 높았다. 주부가 일의 역할을 합법적으로 지각하면 할수록 남편과 다른 가족의 구성원들에게 도움을 요청하거나 도움을 받는 것을 원하지 않았으며, 일을 더 열심히 하기 위해 대처전략과 우선순위(주부가 일을 전혀 완수 할 수 없을지라도 가정의 어떤 일이 중요하고 어느 것이 두 번째로 중요한지를 결정하는)를 더 잘 설정하고 더 잘 수용하는 것 같았다. 식품 등을 쇼핑하는데에 많은 시간을 소모할수록 우울의 수준은 더 높았다. 이 자료는 스트레스와 대처이론을 지지하고 있다.

• 한국지구과학회:학술대회논문집
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• 2010.04a
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• pp.23-23
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• 2010

스발바드 서측에 위치하는 스피츠버겐 하부의 암석권맨틀의 분화시기를 규명하기 위하여, 두 개의 독립적인 방사성동위원소 시스템인 Lu-Hf과 Re-Os 시스템을 스피넬 페리도타이트(spinel peridotite)에 활용하였다. 전암에 대한 Re-Os 계통(Re-Os 에러크론, 알루미노크론, Re-결핍연대 등)은 연구지역의 페리도타이트가 대류하는 맨틀로부터 고기원생대/후기시생대에 분리되었음을 지시한다. 흥미롭게도 이런 연대는 페리도타이트내 단사휘석 결정들에 대하여 얻어진 Lu-Hf 에러크론 연대와 일치한다. 또한 시료 내에 지구화학적으로 기록된 현무암질 액의 결핍정도 역시 계통적으로 위의 연대를 지지한다. 위 연대는 스피츠버겐 서측부에 보고된 가장 오래된 지각의 연대와 일치한다. 따라서 연구지역의 암석권맨틀이 연약권으로부터 분리된 것은 접촉하고 있는 지각과 동시기적으로 이루어진 사건임을 알 수 있다. 연구지역은 팔레오세 이래로 복잡한 지구조적 응력장 변화(압축에서 신장환경으로의 변화)를 겪었다. 그럼에도 불구하고 지각과 커플링된 암석권맨틀이 현존한다는 것은 연구지역내 응력장변화가 대규모의 암석권 디라미네이션(delamination)을 유발하지는 않았다는 것을 의미한다. 그러므로 북극권의 화산활동을 설명하기 위하여 북극권 상부맨틀에 존재한다고 알려진 듀팔(DUPAL) 같은 부화된 물질의 성인으로 일부의 연구자들이 주장하여 온 디라미네이션된 암석권맨틀의 존재는 설득력이 없다고 판단된다.

• Economic and Environmental Geology
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• v.35 no.5
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• pp.455-463
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• 2002

There have been few geophysical studies on the crustal structure of the continent-ocean zone around the middle eastern part of Korean peninsula, because of the lack of database in both land and ocean. The area for the study on the internal crustal structure using gravity data is bounded by the latitude of 37$^{\circ}$-38"N and longitude of 128$^{\circ}$-132$^{\circ}$E. WCA correction is applied to shipborne gravity data to integrate with gravity anomalies obtained on land. The high frequency components of the shipborne gravity data which are considered as the noise on survey track are effectively removed by means of correlating with satellite gravity data. The corrected shipborne free-air gravity anomaly is integrated with the Bouguer gravity anomaly on land under the same condition. The integrated gravity anomaly is divided into four areas for power spectrum analysis. The depths of Moho discontinuity increases gradually from inland to Ulleung basin. As the result of modeling based on power spectrum analysis, Moho discontinuity depth is about 33-35 km in the continental zone of Korea and 18-28 km at the continental margin. Such structural character is well elucidated in changing gravity data around Ulleung basin. The depths of Moho discontinuity in the southern ocean of Ulleung-island is 16--17 km, which is much lower than in the land. The result of crustal structure modeling in this study is similar to that computed by prior seismic exploration around this area.

• Korean Journal of Cognitive Science
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• v.29 no.2
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• pp.121-135
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• 2018

Dancers' motions are perceived by observers through visual processes with visual information forming the basis for the observers' appreciation and evaluation of the dancers' motions. There have been many discussions as to whether or not observers' personal athletic capabilities form an essential basis for accurate assessment of the motions of others but, so far, no valid conclusions have been reached. The purpose of this study is to investigate how the ability to predict motions of others varies depending on the athletic expertise of the observers. Participants of this research were ballet dancers of varying athletic expertise. Twenty seven participants were divided into three groups with nine in each: beginners, intermediate experts and experts. The participants watched the same dance video and then evaluated whether the motion would be successful or not. The movement related visual information required to evaluate the success of the motion was systematically adjusted by controlling the length of the video. Using the temporal occlusion method, this study measured the response accuracy of the participants by category of expertise. Under the circumstance with insufficient visual information to utilize, the experts showed higher rates of correct response than the intermediate experts and the beginners. The beginners showed higher rates of wrong response than the experts and the intermediate experts. These results showed that the ability to predict success or failure of a dance motion varied depending on motion expertise of the observers, although they had similar level of expertise in perception. Participants considered to have high athletic expertise showed high prediction ability on the result of the motion. In addition, high expertise in perception reduced the likelihood that participants would make hasty responses under the circumstance with insufficient information and helped to reduce wrong response rate. In conclusion, this study showed that motor expertise and perceptual expertise contribute to prediction accuracy of observed motions.

• Science of Emotion and Sensibility
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• v.22 no.2
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• pp.69-82
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• 2019

Do animals have a mind? Our understanding about whether animals have minds depends on our relationship with animals, as we cannot determine animals' actual minds. These two studies presented here thus examined the meat paradox, that is, an inconsistency between love for animals and the act of enjoying eating meat in the context of mind perception. Study 1 examined whether mind perceptions toward various animals are classified on the basis of experience-related capacities, such as feeling pain, and agency-related capacities, such as having self-control. In Study 2, mind perceptions toward cows and sexually objectified women were classified on the basis of food condition and non-food condition. In the food condition (experimental condition), cows were portrayed as products for meat consumption, whereas in the control condition, they were described as animals living on a farm, eating grass. The results of Study 2 demonstrated revealed that mind perception was positively associated with how morally incorrect it was to eat animals. Study 2 thus demonstrated that the scores of mind perception toward cows and sexually objectified women in the experimental condition were significantly lower than those in the control condition. These reduced mind attribution in the experimental condition implied that people may be motivated to reduce cognitive dissonance between their attitudes toward animals, such as loving them, and their behaviors, such as, eating meat. In addition, these results suggest that objectification toward animals may impact the objectification and mind perception toward human beings as well. These findings highlight the role of dissonance reduction in the meat paradox and objectification theory so as to understand basic psychological processes involved while making moral choices in everyday life.

• The Journal of the Korea Contents Association
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• v.11 no.8
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• pp.1-13
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• 2011

In order to create an intelligent autonomous agent in virtual world, we need a sophisticated design for perception, recognition, judgement and behavior. We develop the perception and recognition functions for such an autonomous agent. Our perception mechanism identifies lines based on differences in color, the primitive visible data, and exploits those lines to grasp shapes and regions in the scene. We develop an inferencing algorithm that can infer the original shape from a damaged or partially hidden shape using its characteristics from the ontology in order to intelligently recognize the perceived shape. Several individually recognized 2D shapes and their spatial relations form 3D shapes and those 3D shapes in turn constitute a scene. Each 3D shape occupies its respective region, and an agent analyzes the associated objects and relevant scenes to recognize things and phenomena. We also develop a mechanism by which an agent uses this recognition function to accumulate and use her knowledge on the scene in the historical context. We implement these functions presented above against an example situation to demonstrate their sophistication and realism.

• Journal of dental hygiene science
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• v.15 no.2
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• pp.238-245
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• 2015

Dentinal hypersensitivity is a type of dental pain that occurs when various stimuli are applied to exposed dentin lesions. If the symptoms of dentinal hypersensitivity continue, the dentin is exposed and the hypersensitivity may become a periodontal disease or root caries due to bacterial infection. Therefore, the clinical goal of the present study is to reduce the pain of the patient suffering from dentinal hypersensitivity by developing antimicrobial hypersensitivity treatments and to improve oral hygiene. We prepared chlorhexidine, tetracycline, cetylpyridinium chloride, gallic acid loaded desensitizer by adding 0.1%, 0.5%, 1.0%, and 2.0% chlorhexidine, tetracycline, cetylpyridinium chloride, gallic acid to desensitizer (Micro Prime; Denville and Hurri Seal; Beutlich), and antibacterial effect, and cytotoxicity. The antibacterial test by using Staphylococcus aureus (SA. ATCC 6538, FDA 209) showed that the antibacterial effect of all experimental groups was significantly higher than that of control group (p<0.05). Cytotoxicity test by using agar diffusion assay indicated that Micro Prime showed mild toxicity, Hurri Seal showed severe toxicity and this cytotoxicity is supposed to be caused by one of desensitizer components showing weak antibacterial effect.

• Management & Information Systems Review
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• v.38 no.2
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• pp.165-182
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• 2019

This study investigated the consumer acceptance process of the fourth industrial revolution new product to be introduced into the market in the future. The 4th Industrial Revolution new products are technological advances compared to the existing ones. The technology acceptance model that was used in the past has been modified to reflect variables like the social effects of the 4th Industrial Revolution, expected experience, and perceived risk. Modified models were proposed and verified. Six representative new products of the 4th Industrial Revolution were selected and examined by 40 respondents, and the hypotheses were verified using programs such as SPSS and AMOS. And conclusions and implications are as follows. First, the innovativeness of the fourth industrial revolution new products influences positive evaluation factors such as expected experience and perceived usefulness and it also affect positively to the perceived risk. In addition, the expected experience of the fourth industrial revolution new products has a great effect on the perceived usefulness and social influence, but it didn't affect to the perceived risk. Like the results of the TAM model, purchase intention of the fourth industrial revolution new products are strongly influenced by perceived usefulness. Finally, the perceived risk of the new product of the 4th Industrial Revolution had no statistically significant effect on the purchase intention, and the social influence of the 4th Industrial Revolution had a significant effect on the purchase intention. In general, respondents are highly aware of the social impact of the Fourth Industrial Revolution and seem to be very positive in this respect.

• Korean Journal of Cognitive Science
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• v.17 no.4
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• pp.357-373
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• 2006

Virtual reality (VR) provides a virtual experiment (VE) context consisting of information presented to the senses of the user. The user perceiver and interprets the VE context, and then naturally recognizes a level of realism in the VE. Presence is often thought of as the sense of 'being there' in the n. Presence includes overall feelings about the information conveyed from a virtual avatar to the user. Therefore, there must be brain mechanisms for integrating sensory information about presence.'Feeling of presence' is related with the user's cognition and perception about information on communication through medium. Thus 'feeling of presence' may characterize perceptual mechanisms in the brain. We studied these mechanisms by presenting a VR that consisted of an avatar telling a story about a social conversation. We performed covariance analysis on subjective brain activity (fMRI) during the story presentation with a presence score. The data analysis revealed that activity in several brain areas was correlated with the presence store. A positive correlation was shown in the right lingual gyrus, right cuneus, left lingual gyrus, right fusiform gyrus, left inferior temporal gyrus, anterior cingulate cortex and right posterior cingulate cortex of the brain. This study showed the brain mechanism to be related the feeling of presence and brain activities in our subjects, using VR to communicate information.