• Journal of Conservation Science
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• v.35 no.3
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• pp.237-244
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• 2019

In this study, we applied terahertz imaging technology to three Korean modern oil paintings ('Boy,' 'Girl,' and 'Hyehwadong Landscape'); investigated the types of inner layer information in the pictures that can be extracted with terahertz imaging technology; and analyzed the conditions for extracting them. The biggest problem in the terahertz imaging analysis we encountered was the image distortion caused by the change of the distance between the target surface and the terahertz detector, depending on the surface curvature of the target paintings. We then developed a 'working distance maintaining device' to solve this problem. As a result, the terahertz imaging technique was used to identify the base material characteristics and any patterns of damage inside, and presented the optimal conditions for identifying each characteristic. In addition, it was useful to employ the terahertz frequency-division image to check the characteristics of the background materials. To confirm coloring techniques such as brush strokes, it is effective to compare the maximum reflection peak image with the cross-section image; and to detect damage information inside the paintings that cannot be observed on the surface, to compare the cross-section image with the frequency-division image. On the other hand, according to the terahertz imaging analysis of the oil paintings, the internal structural damage marks of 'Boy' and 'Girl' were confirmed, and the artist's painting style was confirmed in 'Hyehwadong Landscape.' The above results are expected to be useful for the analysis and diagnosis of Korean modern oil paintings for their preservation.

• The Journal of the Korea Contents Association
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• v.13 no.5
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• pp.262-274
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• 2013

This study was performed in order to verify the effect of family resilience in youth suicide. The subject was the third year of high school boys in Gwang-ju, 308 questionnaires were used in the analysis. In order to derive the results of a study, we used the statistical processing technique SPSS, to perform verification of factor analysis and reliability of each variable, AMOS analysis was performed for hypothesis testing. According to the result of the study, belief systems which was sub-variables of family resiliency affect communication, and communication influence on the idea of adolescents suicide. In addition, the belief system has an indirect impact on the communication mediated suicidal thought. Thus, If we emphasize the harmony between family, suicidal thought of adolescent will be reduced. So we proposed the way to increase the belief of the family, and ways to improve communication between parents and children.

• Journal of Korean Home Economics Education Association
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• v.22 no.1
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• pp.21-32
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• 2010

The purpose of this study was to investigate the effects of the family and peer relationships on adolescents' self-esteem. The subject of this study were 563 students of second grade of middle school who reside in Bucheon, Geonggi-Do and 532 self reported questionnaires were used for final analysis. The findings of this study suggested that there was no significant difference between male and female adolescents in self-esteem. Second, adolescents' self-esteem were associated with relationship with parents, parental supervision, interparental conflict, friendship quality and peer victimization. Male adolescents' self-esteem was affected by peer victimization, relationship with parents, friendship quality. Female adolescents' self-esteem was affected by relationship with parents, friendship quality and peer victimization.

• Journal of Korea Entertainment Industry Association
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• v.15 no.1
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• pp.1-12
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• 2021

Big Hit entertainment corporation has been well known for value creation since it became the contents innovator in Korea to develop global artist musician BTS. By introducing sustainable innovations, as well as a mainstream of successive music entertainment growth, Big Hit entertainment corporation has became a global leader in highly competitive entertainment industry. To explain the Big Hit's contents innovation story, this study suggests a innovation momentum with two core elements: CEO's entrepreneurial leadership and platform strategy. Based on in-depth case study, this study proposes that CEO's entrepreneurial leadership allowed the Big Hit entertainment corporation to take advantage of its existing key resources and execute sustainable contents innovations. Also, creating diverse music and entertainment contents from the Weverse digital platform produce Big Hit's value creation. Based on these research results, both the contributions and implication to entertainment industry and academic field are presented.

• The korean journal of orthodontics
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• v.26 no.5 s.58
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• pp.469-485
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• 1996

Orthodontic patients are individuals that grow and develop ; therefore selection of the proper time for orthodontic treatment is considered to be one of most difficult and yet difficult factor. Since the development of cephalometric X-ray, amount and Pattern of craniofacial growth change with aging could be predicted and be came useful in the process of orthodontic treatment. The relationship between the mean values of cephalometric measurements and body height and weight was studied among the groups(boys and girls) of Korean children from the ages 6-years to 17-years. 409 boys and 437 girls with no abnormality in growth and development and no history of orthodontic treatment from the ages of 6 years to 17 years were chosen as subjects Cephaloment X-ray were taken for 3 years and hard tissue analysis based on Burstone's COGS, which was devided into measurements of 6 parts(Cranial base, Maxillar and Mandible, Dental measurements). The relationship between craniofacial growth and height & weight was studied. The following conclusions were obtained : 1. The maximum growth in the measurements of cranial base, N-Ar(FH), N-Ba(FH) corresponded with the age with the maximum increase in body height & weight in both boys and girls. 2. Genial angle gradually decreased with aging in both boys and girls. 3. N-ANS(L) showed greater amount of growth than ANS-Ne(L), and this had greater influence on facial profile. 4. N-A-$Pog^{\circ}$ decreased with aging, and mandibular growth exceeded maxillary growth in amount and rate. 5. Length of Y-axis Increased, but Y-axis to FH plane remained constant. This show that mandible grows at a constant angulation to cranial base. 6. As permanent teeth erupt, interincisal angle deceased.

• The korean journal of orthodontics
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• v.37 no.3 s.122
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• pp.231-240
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• 2007

Objective: The purpose of this study was to investigate the maxillary protraction effects of the Tandem Traction Bow Appliance (TTBA), a new appliance devised several years ago for the treatment of growing skeletal Class III patients. Methods: Participants were 88 Korean children (42 boys, 46 girls) with skeletal Class III malocclusion treated with TTBA at the orthodontic clinic of Ewha Womans University Mokdong Hospital. Mean age at the start of treatment was 7.5 years${\pm}$1.5 years. Mean treatment periods were $13{\pm}3$ months. Pretreatment and posttreatment lateral cephalograms were traced and superimposed by the same investigator and analyzed by modified McNamara analysis and pitchfork analysis. Changes were evaluated with paired t-tests at a significance level of p<0.05. Results: The maxilla and maxillary dentition moved forward. The mandible moved backward, although not significantly; and the mandibular dentition moved forward. The net dental changes combined with the apical base change resulted in a favorable total molar relationship correction. Net dental movement was 26% and the apical base change 74% of the total molar relationship correction. Conclusion: These results suggest that TTBA has a maxillary protraction effect that can be useful in the treatment of growing skeletal Class III malocclusion with maxillary deficiency.

• The Journal of the Korea Contents Association
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• v.18 no.3
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• pp.361-368
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• 2018

This study analyzes movie by individualiztion theory of JUNG. It is about the mother and the boy who killed the family and a lot of people based on the original novel of the same name. Movies based on maternal love express the maternal sublime devoted to their children, or act as a genre film that introduces maternity even against social myth or ethics. It expresses the desire of a woman to clash with maternity and raises questions about maternal ideology.The maternal ideology was a modern product had fixed sex role in industrialized societies.As a resukt, maternal love is identified with femininity unlike paternal love. Women are emphasized to be responsible for raising safe social members beyond individual responsibility. The movie develop story about crime that occurred in motherson relationship which lacks attachment formation in fostering process. This is not a recuurence of the maternal ideology of mother who miscarried child because she lacked motherhood. Mother Eva projected a conflict that is between maternal ideology and her desire on motheson relationship.Son Kevin also experiences a projection that influenced his persona through his mother. In this paper, I analyze through JUNG's individualization theory that The characters face their projected ego and realize self-fulfillment by searching of their own life goal out of external role or ideal.

• The korean journal of orthodontics
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• v.29 no.4 s.75
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• pp.435-443
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• 1999

This study was undertaken to investigate the growth change of genial angle and interrelationship between the growth change of gonial angle and IMPA in the longitudinal data from 7 years to 15 years. By analyzing the serial lateral cephalograms or 15 males and 19 females of 7 years old to 15 yens old who had no abnomality in growth and development and no history of orthodontic treatment, the following conclusion were obtained. 1. Genial angle gradually decreased with aging in 25 children and in 9 children increased or maintained. 2. There was a tendency that children who decreased genial angle with aging showed gradual increase of IMPA and children who increased or maintained gonial angle with aging showed decrease of IMPA. 3. There was a tendency that regardless of the change of gonial angle, interincisal angle decreased with aging.

• Childhood Kidney Diseases
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• v.14 no.2
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• pp.223-229
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• 2010

Percutaneous transluminal renal angioplasty (PTRA) is the current treatment of choice for renal artery revascularization, but renal autotransplantation has been an alternative treatment for complex cases. Here we report a 14-year-old boy with severe hypertension successfully treated with PTRA and renal autotransplantation. Doppler ultrasonography and computed tomography (CT) angiography revealed slight narrowing in the right renal artery ostium and complete obstruction in the left renal artery ostium with multiple collaterals. PTRA with stent insertion was performed for the treatment of the right renal artery, but it was impossible for the left renal artery due to the total obstruction. Therefore, left nephrectomy for autotransplantation was done with the peritoneal approach and the left kidney was autotransplanted to the ipsilateral iliac fossa. Postoperatively, Doppler ultrasonography and mercapto-acetyl-triglycine (MAG-3) renogram were performed, which showed normal renal artery blood flow and kidney function. Blood pressure was normalized and anti-hypertensive drugs were gradually tapered. Fibromuscular dysplasia was suspected to be responsible for the renal artery stenosis based on clinical aspects. In conclusion, renal autotransplantation is also a good treatment option for children with severe renovascular hypertension when endovascular treatment has failed or is not possible.

• Journal of Digital Convergence
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• v.14 no.7
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• pp.461-473
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• 2016

The purpose of this study is to analyze cognition of applicants about the national sports coaching certificate examination. In order to collect data an online survey was conducted against those who attended the practical and oral examination for the sports coaching certificate. SPSS Version 18.0 was used to analyze frequency of the collected 2,895 samples, the factors of measuring methods in the study, difference of applicants' cognition on the certificate system, and difference of applicants' cognition on the practical and oral examination. Results from this study indicates that the applicants' cognition on the sports coaching certificate system differs according to ages, educational levels, and sports related majors at college, and that the applicants' cognition on the practical and oral examination for the sports coaching certificate is also different according to gender, age, educational level, and sports related majors at college. This study suggests development directions for the future sports coaching system by comprehending of the study results.