• Korean Journal of Remote Sensing
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• v.12 no.2
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• pp.155-168
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• 1996

Speckle noise has been a primary concern to many applications of synthetic aperture radar (SAR) imagery. In recent years, several satellites with radar imaging systems were launched and the use of SAR data are expected to be increased rapidly The objectives of this study are to provide introductory understanding on radar speckle filtering and to compare the effects of several filtering methods that are relatively unknown to user community. Two study sites were extracted from the RADARSAT SAR data obtained over the suburban areas near Seoul. The study sites include relatively homogeneous cover types, such as reservoir, parking lot, rice pad, and deciduous forest. Five filters (mean filter, median filter, sigma filter, local statistics filter, and autocorrelation filter) were applied to the SAR imagery and their effects were evaluated from the aspects of both image smoothing and edge preservation. In overall, the evaluation results indicate that the local statistics filter and autocorrelation filter, that are based on a speckle model, are more effective to suppress speckle within homogeneous cover type while maintaining the edge sharpness between cover types.

• The Journal of the Korea Contents Association
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• v.19 no.10
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• pp.112-125
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• 2019

ASMR are becoming a new consumption trend with wide prevalence of personal web-casting and video-sharing platforms. In this context, this research looked at what factors determine usage of ASMR contents. In greater details, demographic variables, sub-types of contents, usage motivations, neuroticism and subjective norm were considered as possible determinants in this study. And their influences on ASMR usage were empirically tested. The moderating effect of neuroticism was also examined. The findings showed that educational level as one of demographic variables, two sub-types of scratching and eating sound, three motivational factors including attention, relieving for sleep disorder and pleasure stress relief have positive influences on ASMR usage while motivations of curiosity trend and sexual pleasure have negative influences. The moderating effect of neuroticism was also empirically proven. This study has implications since it suggests that personal traits including neuroticism as influencing factors should be taken into account in understanding usage behaviors of ASMR contents with accuracy.

• Anxiety and mood
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• v.15 no.1
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• pp.1-12
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• 2019

Thought-action fusion (TAF) is a tendency to blindly assume causal relations between their thoughts and external reality. On the other hand, cognitive fusion (CF) is a tendency to take internal experiences, such as thoughts and feeling, literally rather than view them as random events. However, these two terms are often confusedly used and, in fact, have conceptual overlaps. Therefore, this study aimed to identify their distinctive features through a comprehensive review of the definition, origin, measurements and clinical implications especially on the understanding of obsessive-compulsive symptoms. The cognitive-behavioral concept of TAF is confined to erroneous and maladaptive beliefs about the connection between thoughts and behaviors. The CF is a broader construct that entails taking thoughts and feelings as facts and engaging or struggling with them such that the quality of life is lowered. They also have different theoretical backgrounds, developing processes and therapeutic approaches. From the perspective of the obsessive-compulsive disorder, both concepts have been studied as mid-structures for this illness. Recently, the effectiveness of psychological therapies related to these concepts such as defusion therapy has been tested. However, it is yet still in its infancy. In the future, complementary advances between the two concepts with studies on biological substrates is needed.

• 재활복지
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• v.22 no.1
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• pp.115-139
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• 2018

The purpose of this study is to examine the awareness and demands from assistive technology professionals on the service and propose practical methods for AAC service. This study selected subjects who are experts working in 10 assistive technology centers and survey was conducted among 69 assistive technology professionals. Results from this study are presented as follows. First, many assistive technology professionals learned AAC through school course. Second, there was a significant difference in the presence of using AAC experience regarding their general awareness of the understanding and interests on AAC. Third, many responders said that it is significant to provide AAC information and extend supports for AAC users and providers. They added that demands of AAC will grow in the future and engineering-based ACC instruments will take up the most market. This study will enable AAC service to offer basic data to establish more efficient supportive direction for AAC users and providers of the assistive technology center.

• Journal of the Korea Convergence Society
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• v.10 no.4
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• pp.153-163
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• 2019

The importance and necessity of convergence research to solve complexity and diversity of research problems is more increasing. For successful convergence research, connectivity beyond the boundary and distance between disciplines is a key factor. To understand the current status and characteristics of connectivity among researchers, we investigated the interdisciplinary relationships among 487 researchers' disciplines in a university by using network anaylsis. The results showed that (1) connectivity between similar disciplines were higher than different disciplines, (2) the density and cohesion level of connectivity within the same campuses were higher, and (3) network centrality was concentrated in engineering and medicine. Based on these results, the necessity of overcoming boundaries and distances as obstacles to convergence research and the necessity of diversification of centrality were proposed. While previous studies mainly analyzed the research outcomes, this study is meaningful because it analyzed researchers' connectivity and collaborative structures in the actual convergence research procedures.

• Journal of the Korea Convergence Society
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• v.10 no.5
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• pp.103-110
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• 2019

The present study investigated the effects of AD on stereoscopic vision. Sixty participants (20 AD patients, 20 mild cognitive impairment patients, 20 healthy elderly controls) participated in the study. Two cubes, one on the left and the other on the right of the center of the monitor, appeared at varying distances from the observer with their relative distances controlled in two disparity conditions (absolute vs relative disparity) combined with two disparity directions (crossed vs uncrossed disparity). Participants identified the object that appeared closer to them. Results demonstrated comparable performance with all three groups performing accurately, suggesting that the effect of AD on stereopsis is negligible. Discussion focused on brain pathology affected by AD involving high level visual processing.

• Journal of Korean Clinical Health Science
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• v.9 no.1
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• pp.1469-1477
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• 2021

Purpose: The purpose of this study is to investigate the understanding about speech therapy and the satisfaction of counseling about speech therapy according to the characteristics of mothers who have children with disabilities, and to devise the clinical instruction methods to provide the effective speech therapy by identifying the correlation between the two variables. Methods: This study conducted a survey for 78 mothers of children with disabilities who use speech therapy labs in university. 17 questions were composed to investigate the understanding degree about speech therapy and 24 questions were composed to investigate the satisfaction degree about speech therapy counseling. Results: First, the survey showed that mothers who have the higher education level have the higher understanding degree about language(p<0.01). Second, the survey showed that mothers who have the higher education level have the lower satisfaction degree about counseling process(p<0.5). In the view of job status, mothers who have a job have the higher satisfaction degree about counseling time(p<0.5). Third, the survey showed that in the view of mothers'understanding degree about speech therapy and satisfaction degree about counseling, mothers who have the higher understanding degree about language, speech therapy tools and speech therapy area have the higher satisfaction degree about counseling. Conclusions: This study showed the necessity to understand the subjects'needs exactly and communicate with mothers actively. In addition, the concrete and various methods should be devised in order to increase the understanding degree about speech therapy and increase the satisfaction degree of counseling about the clinical practice environment and language therapy process.

• The Journal of Korean Academy of Sensory Integration
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• v.20 no.1
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• pp.39-54
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• 2022

Objective : The purpose of this study was to identify the experiences of novice occupational therapists working at a child private clinic center in the clinical experience process of sensory integration therapy and to understand the adaptation process in child private clinic center. Methods : The participants were four occupational therapists with less than 1 year of clinical experience. Data collection was conducted through in-depth interviews, and the recorded interview responses were transcribed and analyzed. The analysis of the data was made by phenomenological analytic method suggested by Giorgi. Results : As a result of analyzing the adaptation process of novice occupational therapists working at the child private clinic center, 3 categories, 6 themes, and 16 main meanings were derived. Novice occupational therapists experienced difficulties arising from clinical, obstacles from the working environment, positive factors inside the center, support from outside the center, self-effort, and changes through adaptation experience. Conclusion : Along with changes to the social system and pediatric rehabilitation institution, one's own effort are also required so that novice child occupational therapists working at child private clinic centers can adapt and perform at their roles.

• Journal of the Society of Disaster Information
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• v.19 no.1
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• pp.76-83
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• 2023

Purpose: In emergency situations such as earthquakes, heavy rains, typhoons, or fires, when quick delivery of emergency alerts is crucial, the hearing impaired are the ones who are the most disadvantaged and vulnerable when alerts are only delivered through auditory or text alerts. They can't perceive auditory information, and many have difficulties in fast understanding text-based alerts. Method: An alert system that can deliver pictograms for specific disaster situations has been devised. Then, a novel approach based on artificial intelligence has been studied so that the pictograms for specific disaster situations can be chosen instantly once a disaster alert is issued in text. Result: A disaster alert system that delivers pictograms for specific disaster situations was developed and a novel method has been suggested for automatic delivery. Conclusion: A system to instantaneously deliver disaster alert information in pictograms has been developed to improve alert delivery to the populations vulnerable to disaster due to hearing impairment by the instantaneous understanding of disaster situations through visual information.

• Industry Promotion Research
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• v.9 no.2
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• pp.127-135
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• 2024

This study is an instrumental case study based on a theoretical proposition on animal phobia as a single case, Six categories were derived for the purpose of psychological analysis of the father of a female research participant suffering from the earthworm phobia. They are 'a fearful existence', 'problems with the woman who is always by her father's side', 'secret adultery and shock', 'fear of punishment', 'symbol for earthworm and fear displacement', and 'earthworm phobia'. Anxiety about punishment from a fearful father was the cause of the phobia. For the study participant, the earthworm phobia was the displacement of her father's fear of earthworm, and the earthworm phobia was interpreted as a substitute for her father. In other words, earthworm phobia should be understood as an escape and defense process as it replaces the re-emergence of long-repressed fearful feeling toward her father, and its symbolism can be seen as a metaphorical transformation of the pathological family atmosphere.