영화 산업의 사운드디자인 발전방향에 대한 연구

성재현 한국감성과학회 2023 한국감성과학회 춘계학술대회 Vol.2023 No.-

THE LONGITUDINAL GROWTH CHANGES OF CRANIOFACIAL STRUCTURE IN KOREAN ADULT (DURING THE AGE 24 TO 31)

Park, Hyo-Sang,Sung, Jae-Hyun,Sohn, Dong-Seok,Bae, Sung-Min 대한치과교정학회 1997 대한치과교정학회지 Vol.27 No.6

최근 성인환자의 증가에 따라 왕성한 사춘기성장이 완료된 후 성인에서 일어나는 성장변화를 이해하는 것이 임상교정학에 있어서 매우 중요하게 되었으나 이에 대하여 알려진 바가 많지 않다. 따라서 저자등은 한국인 성인의 두개안면부의 성장변화를 관찰하기 위하여 성인 남자 25명과 여자 15명의 두부방사선규격사진을 촬영한 후 7년후에 추적하여 다시 촬영한 연속 두부방사선규격 사진을 분석하여 다음과 같은 결과를 얻었다. ·여자에서 하악골은 시계방향으로 회전하였으나 남자에 있어서는 변화가 없었으며 하악골의 길이 변화는 없었다. ·여자에서 상악전치는 설측경사 하였다. ·남녀 모두에서 전안면고와 전하안면고의 증가가 있었고 여자에서 전하안면고의 증가가 후안면고의 증가보다 많았다. ·두개저는 관찰기간동안 변화가 없었다. ·성인 두개안면부의 성장은 개개인에 따라서 매우 큰 차이를 보이는 다양성을 가지고 있었다. Recently according to the increase of adult patient, it is neccessory to understand the growth changes of adult after cessation of active pubertal growth in clinical orthodontics. The purpose of this study was to investigate the growth changes of craniofacial structure after active growth period(adult) in order to use as reference in clinical orthodontics. Authors followed the 40 sample(male 25, female 15) from 24 to 31 years of age. By analyzing the serial cephalograms, authors could get the following findings. ·The mandible rotated clockwise in female, but not in male, and no incremental growth change in both genders. ·The anterior facial height and lower anterior facial height were increased in both genders, the increase of lower anterior facial height exceed the posterior facial height increase in female. ·The cranial base was stable throughout observation period. ·The upper incisors uprighted slightly in female. ·There were quite great the individual variation in the growth change of craniofacial structure in adult.

지속적 및 간헐적 가압력이 치주인대 배양세포의 Alkaline Phosphatase 활성도에 미치는 영향

성재현,경희문,배성민,권숙이 대한치과교정학회 1997 대한치과교정학회지 Vol.27 No.4

지속적 및 간헐적인 가압력이 배양치주인대 세포의 ALP활성도에 미치는 영향을 알아보기 위하여 치주인대세포를 24 well 배양접시에 배양한 후 밀생상태가 되었을 때, 세포배양기 속의 특수제작된 사각상자에 배양접시를 넣은 후 실험기간동안 300g/㎠의 압력을 10분간 가압시킨 후 10분간 가압이 중지되도록 한 간헐적 가압군, 그리고 압력을 가하지 않은 군을 대조군으로 하여 각각 실험 24시간, 72시간 후의 alkaline phosphatase의 활성도를 측정하여 다음과 같은 결과를 얻었다. 1. 가압 24시간 군에서는 간헐적 가압군이 대조군에 비하여 ALP활성도가 낮게 나타났다(p>0.05). 2. 가압 48시간 군에서는 실험군은 대조군에 비하여 ALP활성도에 유의한 차이는 나타나지 않았다. 3. 가압 72시간 군에서는 지속적 가압군이 대조군에 비하여 ALP활성도가 높게 나타났다(p>0.01). The purpose of this study was to evaluate the effect of cellular activity on PDL cells dependent on intermittent and continuous compressive force by determining the alkaline phosphatase activity. An intermittent and continuous compressive force were applied on PDL cells at the confluent stage. The alkaline phosphatase activity was measured on control and experimental groups every 24, 48, 72hours. The experimental group were consist of continuous and intermittent compressive group which were compressed by 300g/㎠ of diaphram pump. The intermittent compressive group was connected by timer which was worked on 10 minutes and off 10minutes. The results were as follows; 1. The alkaline Phosphatase activity of intermittent compressive group was lower than control at 24 hours(p>0.05). 2. The alkaline Phosphatase activity between each groups showed no significant differences at 48hours. 3. The alkaline Phosphatase activity of continuous compressive group was significantly higher than control group at 72 hours(p>0.01).

스포츠 인플루언서의 특성과 소비자의 신뢰 및 구매만족, 재구매의도 간의 관계 분석

성재현,강유원,신민철 한국사회체육학회 2024 한국사회체육학회지 Vol.- No.97

Purpose: The purpose of this study is to provide essential foundational data for developing strategies for sports influencer marketing in a social media environment. Method: A total of 221 responses were collected through the Google Online Survey. Frequency analysis was performed using SPSS, and a structural equation model test was conducted through Partial Least Squares (PLS). The structural equation model was segmented into a measurement model and a structural model for evaluation, which was assessed based on predefined reference values. Results: The results of this study are as follows: 1) After examining the relationship between the characteristics of sports influencers and trust, it was discovered that expertise, interaction, and attractiveness all had a significant positive effect on trust. 2) Following and analysis of the relationship between the characteristics of sports influencers and purchase satisfaction, it was revealed that expertise, interaction, and attractiveness all had a significant positive effect on purchase satisfaction. 3) Upon investigating the connection between trust and repurchase intention, it was determined that trust had a significant positive effect on repurchase intention. 4) Through an examination of the relationship between purchase satisfaction and repurchase intention, it was established that purchase satisfaction had a significant positive (+) effect on repurchase intention. Conclusion: When conducting sports influencer marketing, it is essntial to establish a strategy that takes into account the characteristics of sports influencers, consumer trust, purchase satisfaction, and repurchase intention.

Ⅲ급 부정교합의 치료후 예후에 관한 후향적 고찰

성재현,권오원,김상두 대한치과교정학회 1998 대한치과교정학회지 Vol.28 No.2

본 연구는 치료후 빈번한 재발로 인해 치료에 어려움을 겪는 Ⅲ급 부정교합의 치료후 예후를 예측하는데 도움을 주고자, 교정치료후 관찰기간동안 측모와 교합이 양호한 상태로 유지된 안정군(Stable group, n=12)과 그렇지 않고 재발의 경향을 보인 재발군(Relapse group, n=13)으로 나누고 초진시 계측항목을 이용한 t-test, 상관분석 그리고 판별분석을 시행한 결과 다음과 같은 결론을 얻었다. 1. 상하악골의 전후방적인 위치와 관계를 나타내는 항목인 SNA, SNB, ANB, Angle of convexity 그리고 APDI에서 두 군간 통계학적으로 유의성 있는 차이를 보여주지 않아 (p<0.05) 두군간 전후방적인 골결형태에 있어서는 차이가 나지 않음을 알 수 있었다. 2. 교합평면의 경사도와 관련된 항목인 Wits, AB to Occlusas plane angle 그리고 Occlusal plane to Mandihular plane angle에서 두 군간 통계학적으로 유의성있는 차이를 보여 (P>0.05)재발군의 교합평면이 안정군에 비해 전하방으로 많이 경사져 있음을 알 수 있었다. 3. 상하치열관계를 나타내는 항목인 Overjet에서 안정군이 재발군에 비해 절대치로 더 커(P<0.01) 전후방 골격부조화에 의한 것이 아닐 경우 치열의 전후방부조화가 클수록 치료후 예후가 좋음을 알 수 있었다. 4. 상관분석결과 Overjet과 Occlusal plane to Mandibular plane angle만이 통계학적으로 유의성있는 상관관계를 보여주었다(P<0.001, P<0.01). 5. 판별에 기여도가 높은 3항목 즉 Overjet, AB to Occlusas plane angle 그리고 Articular angle을 이용한 판별식을 도출하였으며, 이를 이용할때 본 연구에 사용한 표본의 88%를 올바르게 판별할 수 있었다. The purpose of this study was to predict the prognosis of class Ⅲ malocclusion treatments. 25 patients selected for this study were devided into two groups by the stability of dentitional, skeletal and soft tissue profile improvement. One was stable group which consisted of 12 children and the other was relapse group with 13 children. Various measurements in initial cephalogram were calculated and analyzed by t-test, correlation coefficient and discriminant analysis. The results of this study were summarized as follows: 1. In both stable and relapse groups, there was not distinct difference in the antero-posterior skeletal relationship(p<0.05). 2. As the result of wits, AB to occlusal plane angle and occlusal plane to mandubular plane angle, the occlusal plane of relapse group was slopper than that of the stable group. 3. In correlation coefficient analysis, the overjet and the occlusal plane to mandibular plane angle showed significant correlations(P<0.001, P<0.01). 4. The discriminant function was obtained from three major influential measurements; overjet, AB to occlusal plane angle and articular angle, and this function could discriminate correctly in 88% of these samples.

한국인 두개안면골 성장변화 : 16.5세에서 18.5세까지

성재현 대한치과교정학회 1995 대한치과교정학회지 Vol.25 No.5

정상교합자의 사춘기 이후의 두개안면골 성장변화를 평가하기 위하여, 16세와 18세에 촬영한 연속 두부X선규격사진을 분석하였다. 대상은 남자 19명과 여자 14명이였으며 이들의 평균연령은 16.5세와 18.5세이였다. 관찰기간동안에 남자는 상,하악골, 두개저, 저,후방안면높이에서 통계적으로 유의한 증가가 있었으나(P<0.05), 여자에서는 하악골길이 (Ar-Gn, Ar-Go) 그리고 전,후방안면높이에서만 유의한 증가가 있었다(P<0.05). 그러나 이 기간 동안 성장량은 여자에서는 전 계측항목에서 1mm이하 였으며, 남자에서는 전체 하악골길이(Ar-Gn)는 2mm, 하악체길이(Go-Me), 하악지길이(Ar-Go), 전,후방안면높이(Na-Me, S-Go)는 1mm∼1.54mm였고, 나머지 항목은 1mm이하의 증가를 보였다. 또한 이 기간 동안에도 남자에서는 하악골경면각(SN/Mp)이 -0.61˚로 유의하게 감소하여 하악골의 전방으로 닫히는 변화가 있었다(P<0.01). 종합하면 본 연구기간동안에 여자는 비록 일부 항목에서 통계적으로 유의한 증가가 있었으나 그 양이 미미하여 임상적으로 그 변화를 인지할 수 없을 정도였으나 남자에서는 하악골과 관련된 부위에서 상당량의 증가가 인정되었다. Postpubertal craniofacial growth changes were assessed from serial lateral cephalograms taken at which subjects were 16 and 18 years of age. The sample consisted of 19 male and 14 female subjects with no previous orthodontic treatment who had normal occlusion. The craniofacial growth changes of these samples during this study period might be summarized as follows. 1. Significant increase in mean maxillary and mandibular length, cranial base length, posterior and anterior facial height were observed at the age period studied in male(P<0.05), however, in female significant increase was observed only mandibular length(Ar-Gn, Ar-Go) and anterior and posterior facial height(P<0.05). 2. Total growth increment of all measurements were below 1mm in female, but in male, total mandibular(Ar-Gn) growth increment was 2.0mm and those of mandibular tody length, ram length, posterior facial height, and anterior facial height were 1 to 1.54mm and the others were below 1mm. 3. A closing, forward rotation of the mandible occured with a significant decrease in mandibular plane angle of 0.61˚in male(P<0.01). 4. Summarized the findings, even though statistically significant growth changes in some dimensions of female were observed, the amount of growth change were very small, however, in male the growth changes of some dimensions associated with mandible were significant and considerable amount.

생체 인증의 침해 사례와 보안 위협 분석에 관한 연구

성재현(Jae-hyeon Seong),이정훈(jung-hun Lee),최윤성(Youn-sung Choi) 한국정보통신학회 2024 한국정보통신학회 종합학술대회 논문집 Vol.28 No.1

Ⅲ급 부정교합의 치료전략

성재현 대한치과교정학회 1996 대한치과교정학회지 Vol.26 No.2

저자는 성장기 Ⅲ급 부정교합자의 치료 후 성장완료시까지 장기관찰 기록을 통하여 Ⅲ급 부정교합치료 전략 수립에 도움이 되는 유용한 정보를 얻었다. 장기 관찰 결과는 다음과 같이 요약할 수 있다. 첫째, 전치부 반대교합의 조기 개선시에 상악에서 상당한 전방성장이 많은 증례에서 관찰되었다. 둘째, 악골에 대한 정형적 치료에 의한 성장조절은 장기적인 관점에서 제한적인 효과만 인정되었다. 셋째, 반대교합을 가진 어린 환자에서 얻은 어떤 자료도 장기적인 관점에서 그 환자의 치료후 안정성을 예측활 수 있는 것은 없었다. 그러나 gonial angle은 어느 정도 예측의 가능성을 보였다. 넷째, 성장이 된 연령에서 하악에 대한 정형적 후방력이나 하악의 급작스런 위치 변화는 약관절에 좋지 못한 영향을 줄 수 있었다. 따라서 저자는 다음과 같이 Ⅲ급 치료 전략을 제시한다. ·반대교합은 가능하다면 조기에 개선하는 것이 좋으며, 전형적 치료는 10세 이전에 1-2년 정도 사용하는 것이 좋겠다. ·이후에 바로 phaseⅡ 치료에 들어가지 말고 성장이 어느 정도 끝나는 시점까지 기다린다. 즉 여자는 14세, 남자는 17세 경까지 기다린 후에 교정치료로 마무리할 것인지 악교정 수술을 할 것인지 결정한다. 관찰기간 동안에 성장에 영향을 줄 수 있는 기도문제, 혀자세, 습관, 제3대구치의 발율 등을 감독하고, 성자에 관한 자료를 채득한다. 이렇게 하므로서 앞에서 관찰한 치료 완료 후의 재발로 인한 재치료 문제를 줄일 수 있고, 실제적인 치료기간을 단축할 수 있어 환자나 술자에게 모두 유익하다고 생각한다. The author obtained some useful useful information for the classⅢ treatment from long term observation on the growing patients with class Ⅲ malocclusion. 8 patients were selected for this study and presentation. From these observation so far my conclusions might be as follows; First, in the early correction of the anterior crossbite, considerable forward growth changes were observed in the maxilla. Second, as for the growth modification of jaws by orthopedic treatment, only limited effects were recognized from the long-term observation Thrid, at early age of patients with anterior crossbite, any data couldn't make me predict the stability after treatment on the long-term basis. Fortunately, however,gonial angle showed a marginal possibility of it prediction. Forth, at an advanced age/retraction orthopedic force on the mandible and the rapid change in the mandibular position may cause some trouble in the T.M.joint. Finally, the followings are recommendable. As for the anterior crossbite, correct it early as possible, and use orthopedic force under the age of ten. Do not enter the phase Ⅱtreatment directly. Just wait and observe until the growth were almost completed, focusiong on some important factors such as airway problem, tongue position, and third molar development. Of course, these factors may have some effects on the mandibular growth. for the female, at the age of around 14 years old and the male, around 17 years old, make a final decision whether the patients will continue to be treated orthodontically or surgically. Thereby, (I think) the relapse and retreatment problem after treatemnt we have observed so far might be minimized Furthermore, the active treatment time may be also reduced.

Angle 氏 Ⅲ級 不正交合의 治驗一例

成在鉉(Jae-Hyun Sung),權五源(Oh-Won Kwon) 대한치과교정학회 1981 대한치과교정학회지 Vol.11 No.1

A girl aged 18 years and 1 month, had a Angle`s Class Iff malocclusion, characterized by anterior crossbite, anterior crowding, and constriction from right lower 2nd p emolar to right lower 2nd molar This ~i5 5s patient underwent scaling and 84148 extraction, and multibanded system was placed. After 14 months, anterior crossbite and crowding was corrected, andbothdental arches were improved. After 6 months from debanding, band space disappeared,, and any relapse was not detected.

混合齒列期 學童에서 身長 및 體重과 頭蓋顔面部사이의 相互關係에 關한 硏究

成在鉉 대한치과교정학회 1980 대한치과교정학회지 Vol.10 No.1

The interrelationships between growth rates (and size) of the selected cranifacial dimensions and body dimensions (height and weight) were investigated in the longitudinal data of primary school children from 6 to 11 years of age. The data were obtained from serial cephalometric radiographs and health record which were taken at one year interval. Regression analyses were used to analyze the data. The main concludions might be summarized as follows; 1. Size relationships between body height (and weigh) and S-Gn, posterior facial height (S-Go), total mandibular length (Ar-Gn) showed high significant correlation, but no association between body height, weight and anterior cranial base length (S-N) 2. Correlation coefficients between facial dimensions and body height (and weight) were getting lower with age increase. 3. At all age groups, significant prediction equation for some facial dimensions with body height and weight were obtained. 4. In this sample, the growth rates of facial dimensions and body height and weight showed almostly constant during this age period and the growth rate of body height and weight of girls was exceeded that of boys. 5. A relatively high degree of variation between individuals existed in the sample. 6. A positive correlation was found for the relationship between the growth rates of facial dimensions and those of body height (and weight) in boys and girls, but was not found in total samples.