• 디지털융복합연구
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• 제10권3호
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• pp.71-78
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• 2012

본 연구는 모브랜드로부터 상당한 거리가 있는 제품범주로의 브랜드 확장(비유사 브랜드확장)에 영향을 미치는 모브랜드의 컨셉과 사고방식의 주효과는 물론, 이들 변수간의 상호작용효과인 조절효과를 살펴보고자 하였다. 이를 위하여 속옷브랜드인 캘빈클라인(상징적 컨셉)과 보디가드(기능적 컨셉)를 모브랜드로 선정하였으며 확장제품으로는 지갑을 선정하였다. 연구결과 1) 기능적 브랜드컨셉보다 상징적 브랜드컨셉에서 브랜드 확장의 적합성 판단 및 평가가 높게 나타났으며, 2) 종합적 사고자들이 분석적 사고자들보다 브랜드 확장의 적합성을 높게 판단하고 호의적으로 평가하였다. 뿐만 아니라 3) 상징적 브랜드에서는 사고방식에 따른 적합성 판단 및 평가가 큰 차이를 보이지 않았지만 기능적 브랜드에서는 상대적으로 큰 차이를 보여 변수들 간의 상호작용 효과를 살펴볼 수 있었다. 이러한 연구 결과는 글로벌 시장 환경 하에서 기존의 브랜드컨셉을 고려한 다양하고도 실질적인 마케팅전략을 수행하는데 상당한 기여를 할 것이다.

• The Journal of Advanced Prosthodontics
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• 제9권2호
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• pp.93-98
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• 2017

PURPOSE. The purpose of this study was to compare the width ratio of maxillary anterior teeth according to age in the Korean population and to evaluate the maxillary central incisor width-to-length (W/L) ratio, given differences in age and gender. MATERIALS AND METHODS. Ninety-three Korean adults were divided into 3 groups (n = 31) by age. Group I was 20 - 39 years old, Group II was 40 - 59 years old, and Group III was over 60 years of age. After taking an impression and a cast model of the maxillary arch, the anterior teeth width ratio and central incisor W/L ratio were calculated from standard digital images of the cast models using a graph paper with a digital single lens reflex (DSLR) camera. The calculated ratios were compared among all groups and central incisor W/L ratio were analyzed according to age and gender. All comparative data were statistically analyzed with one-sample t-tests, one-way ANOVAs with Tukey tests, and independent t-tests. RESULTS. No significant differences in maxillary anterior teeth ratios were found among the age groups. The maxillary central incisor W/L ratios in Group III were the greatest and were significantly higher than those in the other groups. The central incisor W/L ratio of men was higher than that of women in Group II. CONCLUSION. Maxillary anterior teeth width ratios were similar in all age groups in the Korean population. The maxillary central incisor was observed as worn teeth in the group over 60 years of age, and a significant difference between genders was found in 40 to 50 year olds.

• 한국의상디자인학회지
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• 제18권2호
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• pp.221-236
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• 2016

The purpose of this study is to make a contribution to the development of creative fashion culture through the expansion of creative fields in the fashion design area and also the combination of fashion and art techniques, by classifying the cases of Trompe $L{\oe}il$ expressed in modern fashion, and also analyzing its aesthetic characteristics. Conducting the qualitative research through the literature study and the analysis of design cases, it targeted the women's wear collections of Paris, Milan, London, and New York, limiting its range from S/S 2010 to F/W 2015. The results are as follows: First, based on the preceding research, the types of Trompe $L{\oe}il$ expressed in modern fashion were shown as realistic expression of clothing, movement of daily objects, double images, and application of human body. Second, the aesthetic characteristics of Trompe $L{\oe}il$ based on its expression types were deconstruction, avant-garde, and amusements. The deconstruction was expressed in the expression type of Trompe $L{\oe}il$ such as freedom of materials using digital printing technique, change in the position of clothes, and movement of daily items using collage technique by collecting objets like daily items or waste. The avant-garde was expressed by switching/overlapping in and out of clothes, intentionally exposing some body parts like breast or torso, displacing body parts, and moving daily items. The amusements was shown by realistically expressing accessories or details of clothes using digital printing technique, or moving daily items such as book and fork.

• 한국의류산업학회지
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• 제17권5호
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• pp.781-792
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• 2015

This study aims to develop a spring/fall motorcycle jacket for quick service transporter. Depending on the results of the previous research, this study produced the tested jacket which was improved in material, pattern, and design. For the tested jacket, 100% polyester fabric excellent in strength, durability and abrasion-resistance was selected as a major material, and Cordura was used as a partial material to improve the strength and abrasion-resistance of the sleeve side lines, elbow and shoulder areas. The retro-reflection material was applied partially in order to improve visibility of the jacket in the night or in a dark place. A total of 7 pockets were composed in the jacket for the sufficient storage spaces. The functional design elements such as the 2-way zipper and the placket at the center front, the action pleats at the upper part of back armholes, the pit-zip at armpit were applied. In addition, the sleeve pattern was bent with the shape of elbow curvature in time of driving and the back length of the jacket was lengthened 4cm. As a result of the appearance assessment, there was a significant difference from the existing jacket in all items but chest size, shoulder width, cuffs circumference, and jacket hemline circumference. In motion adaptability and field activity appropriateness assessments, the assessment grade for all items was found to be commonly higher than that of the existing jacket, and thus, the tested jacket was assessed to be suitable for a motorcycle jacket design for the quick service transporters.

• 한국환경보건학회지
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• 제13권2호
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• pp.25-33
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• 1987

This study was carried out to evaluate student exposures to dust in classroom of middle schools. A total of four schools, such as two in an urban and two in a rural area, were selected for this study. In this study, airborne dust concentrations were measured during a period from July 8 to July 18, 1986. Additional measurements of dust concentrations were conducted from November 4 to 7, 1986 to compare the results by seasonal variation. The results of this study were as follows. 1. Respirable dust concentrations were measured by both filtration method (C mg/m$^3$) and Digital Aerosol Monitor (cpm) to calculate anexchange factor K. K- value was 0.159 as follows. $K=\frac{c}{cpm} = \frac{2.71}{17.09} = 0.159$ 2. In summer when windows were opened, the concentrations of airborne respirable dusts measured by filter sampling method were 0.54-1.37 mg/m$^3$ in the morning and 0.79-1.75 mg/m$^3$ in the afternoon. Thus, higher levels were indicated in the afternoon. Meanwhile, the concentrations of airborne respirable dusts measured in winter were approximately twice as high as those in summer. 3. The highest dust concentrations were determined in School D which is a coeducational school with classroom of concrete floor. Walking roads in School D were not paved and students did not wear indoor-shoes. Dust levels in School D were approximately twice as high as levels in School B. All of the measured dust levels in four schools exceeded Korean Standard for outdoor air, 0.3 mg/m$^3$ for 24 hours. Results by Digital Aerosol Monitor indicated that there was no significant difference in dust levels among grades. The concentration of airborne dusts in the classroom was 1.5-3.0 times higher than that in the hall way. The concentration of airborne dusts during recess was 1.3-1.6 times higher than that during class. In winter, the dust concentrations during clean-up exceeded the permissible exposure limit, 10 mg/m$^3$ (as total dusts), for occupational exposures. 4. The concentrations of total dusts measured in winter were 1.5-2.4 times higher than those of respirable dusts measured simultaneously.

• 한국의류산업학회지
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• 제20권6호
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• pp.722-732
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• 2018

This study was to develop a dress form that is highly representative of the body shapes of senior men in their 50s and 60s. And this research was compared the measurements and forms of three different dress forms available in the market, in order to analyze the body type and suitability and provide a standard for developing and utilizing the dress forms. After extracting the body shapes of the senior men's 3D shape, the body type that is curvature on the back prevalent among senior men, was chosen. The dress form was created as follows: 3D modeling and rendering, printing with a FDM-type 3D printer. The dress forms were 3D-scanned and the 3D data was analyzed - classification drop value, area deviation, compared horizontal section and vertical section. The results were as follows: This suggested that the area deviation amount at the chest and hip circumference levels was larger in the commercial products than in the dress form in this study, while that at the waist circumference level was larger in the dress form in this study. The vertical length of the lateral shoulder point-waist circumference was smaller, the side shape showed severe curvature on the back, and the waist circumference was larger in the senior men dress form than the commercial products. The dress form developed in this study reflected the body type of senior men and, therefore, were suitable for fitting when creating clothes for senior men.

• 디지털융복합연구
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• 제17권1호
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• pp.423-432
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• 2019

본 연구의 목적은 요추 척추관협착증 환자에게 쿠션 인솔을 착용하게 하여서 요추의 유연성과 운동능력에 미치는 영향에 대하여 연구하는 것이다. 요추 척추관협착증이 있는 26명의 환자를 실험군 13명과 대조군 13명으로 무작위로 배치하였다. 참가자들은 6 주간 하루 2 시간 동안 쿠션인솔을 착용하게 하였다. 실험군은 8mm, 대조군은 4mm 쿠션인솔을 맹검법으로 착용하도록 하였다. 실험군의 굴곡능력 검사에서 $3.38{\pm}3.12$의 유의미한 증가(p<0.05)를 보였으나 다른 검사에서는 통계적으로 유의미하지 않았다(p>0.05). 결론적으로 쿠션인솔은 요추 척추관협착증 치료를 위한 중재의 방법으로 적합하지 않았다. 차후에 인솔의 높이나 재질을 다르게 하여 더 연구할 필요성이 있다.

• 디지털융복합연구
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• 제20권4호
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• pp.617-625
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• 2022

본 연구는 기능에 따른 메타버스 플랫폼을 비교하고 분석하고자 하였다. 전문가 심층면접을 통해 5가지 메타버스 플랫폼을 선정하고 비교 분석하였다. 연구결과, 첫째 로블록스는 나만의 아바타를 커스터마이징하여 생성이 가능하며, 스튜디오 기능을 무료로 제공하며, 친구들과 프라이빗 게임을 즐길 수 있다. 둘째, 제페토는 셀카 한 장으로 아바타 생성이 가능하며, 크리에이티브 스튜디오 기능을 제공한다. 셋째, 포트나이트는 게임내 케릭터 생성이 가능하며, 게임에서 제공하는 아이템 구매 및 의복에 장치부착이 가능하고, 포크리 모드에서 친구들과 게임이 가능하다. 넷째, 게더타운은 가상공간의 유저들과 네트워킹이 가능하며, 나만의 아바타 커스터마이징 및 원하는 가상공간 템플릿이 제공된다. 끝으로, 페이스북 호라이즌은 직접 꾸민 자신만의 아바타로 가상세계 호라이즌에 참가하며, 월드 빌더라는 기능이 가능하고, 가상현실 속 광고판을 세우거나 가상의 매장이 가능하다. 본 연구는 메타버스 플랫폼의 특징을 통해 향후 산업에 적용할 수 있는 이론적 근거를 제공했다는 점에서 그 가치가 인정된다.

• 대한치과보철학회지
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• 제61권4호
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• pp.293-307
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• 2023

최근 다양한 증례 보고에서 소개되고 있는 jaw motion tracking은 환자의 안궁 이전 및 개별화된 하악 운동 경로를 기록한 후, 이를 computer-aided-design/computer-aided-manufacturing (CAD-CAM) 소프트웨어의 가상공간상에 재현하는 방법이다. 본 증례의 환자는 오랜 기간 구치부의 상실로 인해 교합평면의 붕괴가 관찰되었기에, 수직 교합 고경의 증가를 동반한 완전 구강 회복술을 계획하였다. 우선 jaw motion tracking을 진행하여 새로운 중심위 상에서 환자의 하악 운동을 기록한 후, 이 정보를 환자의 초진 구내 데이터 및 3차원 안면 스캔 데이터와 조합하여 가상 환자를 생성하였다. 가상 환자 상에서 진행한 디지털 왁스업과 임플란트 식립 계획을 바탕으로 임시 보철물을 제작하였다. 새롭게 설정된 수직 교합 고경 상에서 적절한 견치 유도를 보이는 임시 보철물의 검증을 통해, 최종 보철물로 이행하였다. 이처럼 디지털 치의학 기술의 장점을 활용하여 환자는 저작능과 심미성의 개선에 만족하였기에 본 증례를 보고하고자 한다.

• Restorative Dentistry and Endodontics
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• 제37권3호
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• pp.160-164
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• 2012

Objectives: This study was aimed to investigate the methods to reduce operator's radiation dose when taking intraoral radiographs with portable dental X-ray machines. Materials and Methods: Two kinds of portable dental X-ray machines (DX3000, Dexcowin and Rextar, Posdion) were used. Operator's radiation dose was measured with an 1,800 cc ionization chamber (RadCal Corp.) at the hand level of X-ray tubehead and at the operator's chest and waist levels with and without the backscatter shield. The operator's radiation dose at the hand level was measured with and without lead gloves and with long and short cones. Results: The backscatter shield reduced operator's radiation dose at the hand level of X-ray tubehead to 23 - 32%, the lead gloves to 26 - 31%, and long cone to 48 - 52%. And the backscatter shield reduced operator's radiation dose at the operator's chest and waist levels to 0.1 - 37%. Conclusions: When portable dental X-ray systems are used, it is recommended to select X-ray machine attached with a backscatter shield and a long cone and to wear the lead gloves.