• 한국전기전자재료학회논문지
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• 제26권6호
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• pp.482-487
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• 2013

The new recycling technology for aged aluminum wires in overhead conductor have been carried out. We are attempting to develop remanufacturing method for them for more effective way of recycling in stead of its conventional remelting process. The drawing process of aged aluminum wires play a role in remanufacture process. Drawing process was performed under lubricant. The speed of drawing was between 500 m/min and 1,000 m/min. These machines have 11 or 12 dies house for breakdown of the feedstock. Material of the die is tungsten carbide and they have generally 25% reduction ratio. The paper investigates the mechanical properties during drawing process of aged aluminum wire. The results of tensile tests and microscopic analysis were discussed to underscore the hardening features of drawing aluminum wire. Various graphs are presented accompanied by discussion about their relevance on the process.

• 소성∙가공
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• 제14권7호
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• pp.607-612
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• 2005

In this paper, warm deep drawing process with local heating and cooling technique was attempted to improve the formability of AZ31 magnesium alloy which is impossibly to form by conventional methods at room temperature by finite element method and experiment. For FE analysis, in first model with considering heat transfer, both die and blankholder were heated to 573K while the punch was kept at room temperature by cooling water. Also distribution of thickness and von Mises stress at room temperature and 498k for warm deep drawing were compared by FEM. Uniaxial tension tests at elevated temperature were done in order to obtain the temperature dependence of material constant under temperature of $293K\~573K$ and cross head velocity of $5\~500mm/min$. The phenomenological model for warm deep drawing process in this work was based on the hardening law and power law strain rate dependency. Deep drawing experiment were conducted at temperatures of room temperature, 373K, 423K, 473K, 498K, 523K, and 573K for the blank and deep drawing tools(holder and die) and at a punch speed of 10mm/min.

• 소성∙가공
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• 제15권6호
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• pp.421-427
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• 2006

Drawing process of Al-1%Si bonding wire considering fine Si particle is analyzed in this study using FE-simulation. Al-1%Si boding wire requires electric conductivity because Al-1%Si bonding wire is used for interconnection in semiconductor device. About 1% of Si is added to Al wire for dispersion-strengthening. Distribution and shape of fine Si particle have strongly influence on the wire drawing process. In this study, therefore, the finite-element model based on the observation of wire by continuous casting is used to analyze the effect of various parameters, such as the reduction in area, the semi-die angle, the aspect ratio, the inter-particle spacing and orientation angle of the fine Si particle on wire drawing processes. The effect of each parameter on the wire drawing process is investigated from the aspect of ductility and defects of wire. From the results of the analysis, it is possible to obtain the important basic data which can be guaranteed in the fracture prevention of Al-1 %Si wire.

• 만화애니메이션 연구
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• 통권35호
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• pp.129-153
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• 2014

본 연구는 대안적인 교육모형을 연구하는 과정으로 애니메이션의 전문성을 고려한 교수법을 적용하면 애니메이션 드로잉능력이 효율적으로 신장될 것이라는 관점으로 이어지기 위한 연구의 선행분석 과정이다. 애니메이션 분야는 대상의 움직임을 통해 스토리를 전달하는 영상예술이기 때문에 드로잉 관련 교육만 보더라도 전문성에 필요한 항목을 명확히 하고 체계적인 커리큘럼과 교수법을 적용할 필요성이 요구된다. 이에 본 연구는 애니메이션의 전문성이 고려된 모션드로잉의 범주화 내용에 해당되는 교육적 과제를 분석하고, 국,내외 커리큘럼과 교육내용을 분석하여 현재의 상황을 살펴봄과 동시에 교육모형 개발의 필요성을 점검해보고자 한다. 그에 대한 결과로 모션드로잉 영역에 있는 교과목의 교육모형을 계획하기 위한 근거로 한다. 이 과정은 ADDIE교육모형 개발의 분석단계에 해당되며 추후, 융합적 연구의 시도로써 뇌의 기능과 창작기제를 바탕으로 한 교육모형을 개발하고 적용하는 연구로 이어진다.

• Physical Therapy Rehabilitation Science
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• 제11권2호
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• pp.136-144
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• 2022

Objective: This study was to identify the effect of pressure biofeedback applied in various postures that allow the application of abdominal drawing-in. Design: A cross sectional study. Methods: The study intended to compare changes in the thickness of abdominal muscles between different postures when abdominal drawing-in was performed using a pressure biofeedback unit in five postures and to compare differences in terms of measures such as the transverse abdominis's preferential activation ratio(PAR). Data measured from 30 healthy individuals were used for data analysis. A paired t-test and repeated measures analysis of variance was performed to compare the thickness of each abdominal muscle. Results: The transverse abdominis's and internal oblique's thickness showed statistically significant differences in all postures when abdominal drawing-in (p<0.05). In the comparison between the postures, statistically significant differences were observed between the positions of hook-lying and wall support standing and between supine and wall support standing and between hook-lying and sitting (p<0.05). In terms of the transverse abdominis's PAR in each posture, statistically significant differences were observed between hook-lying and quadruped, hook-lying and sitting, hook-lying and wall support standing, quadruped and supine, sitting and supine, as well as wall support standing and supine (p<0.05). Conclusions: When abdominal drawing-in using pressure biofeedback unit is performed for stabilization exercises, selecting and applying specific postures according to targeted muscles and the subject's functional ability will help provide a more efficient and accurate intervention.

• 한국콘텐츠학회논문지
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• 제22권9호
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• pp.497-509
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• 2022

선(lines)은 인류 역사에서 가장 오래된 시각적 요소이자 인간의 삶과 밀접하게 연관됐으며, 동굴벽화나 바위에 선으로 그려진 그림 및 기호는 인간의 생존을 위한 대체 이미지로 존재해 왔다. 미술에서 선은 단시간 내에 대상의 핵심을 드러내며, 미술치료에서는 내담자의 심리적 상태를 진단하고 치료적으로 개입할 수 있는 매개체가 된다. 그러나 선 그리기, 즉 선화(line drawing)는 진단뿐 아니라 과정상에서 치료적 중요성을 지님에도 불구하고 그 효용성과 치료적 특성을 고찰한 연구는 활발히 이루어지지 못했다. 따라서 본 연구에서는 미술치료에서 선화와 연관된 국내외 문헌을 이론 삼각검증, 질적 내용분석, 공통부분 찾아내기를 통해 우선 도출한다. 그 결과 선화의 핵심적인 치료적 요소인 운동성을 뇌 구조와 연결하여 살펴본다. 이를 통해 선화의 운동성이 신체, 뇌, 마음에 미치는 치료적 메커니즘을 고찰하고 미술치료 안에서 어떻게 치료적으로 활용 가능한가를 검토 및 제안하는 데 학문적 의의를 둔다.

• 대한토목학회논문집
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• 제28권4D호
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• pp.553-560
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• 2008

건설산업의 생산성 향상 및 건설사업관리의 효율성 제고를 위해 국가차원에서의 건설 CALS/EC 표준을 개발한바 수자원 분야에서도 국가 전자도면 작성기준에 준한 표준체계의 개발이 필요한 시기이다. 따라서 본 연구에서는 국가 건설CALS/EC를 지원하기 위한 수자원분야 전자도면정보의 표준체계 개발전략을 수립하였다. 이를 위해, 수자원분야 공공기관의 건설사업관리시스템, 건설유지관리시스템, 도면작성기준서 등 건설관련 분야의 도면정보 표준, 국내 전자도면 작성표준과 ISO, 미국 NCS, 일본표준에서 포함하고 있는 도면표준을 분석하였다. 그 결과, 건설CALS/EC 지원을 위한 수자원분야 도면정보 표준의 기본적인 방향을 제안하였다. 실무적으로 표준체계를 적용하기 위해, 수자원 분야 공공기관의 현행 표준체계와도 연계되면서 국가 건설CALS/EC을 준수하도록 번호부여체계를 수립하였다. 따라서 본 연구는 건설CALS/EC을 지원하기 위한 수자원 분야의 기본적인 표준화 방향 및 번호부여 규칙을 제시하였다.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2013년도 춘계학술대회 논문집
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• pp.1303-1304
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• 2013

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2009년도 추계학술대회 논문집
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• pp.91-92
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• 2009

• 한국보건간호학회지
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• 제18권2호
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• pp.299-311
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• 2004

Purpose: Somatotype drawing developed by Sorensen et al.(1983) has been evaluated as a simple instrument of obesity level without real somatic measuring as height and weight. This study was designed to validate somatotype drawings for obesity assessment by bioelectrical impedance body component analysis. Method: At first questionnaire of somatotype drawing was done. Subjects were measured body component by bioelectrical impedance analysis as weight, BMI(body mass index), WHR(waist-hip ratio), body water, protein mass, mineral mass, body fat mass, skeletal muscle mass, soft lean mass, fat free mass and percent body fat. We evaluated correlations between these data and somatotype drawings and tried to grouping of somatotype drawings with the means of major body component value. Result: The data were collected from 205 college women whose height and weight were $161.2\pm4.8,\;55\pm8.3$. Spearman's correlation coefficients of somatotype drawing were 0.74 with BMI, 0.68 with weight 0.69 with body fat mass, 0.65 with WHR. 0.64 with percent body fat after adiusted age. The grade of somatotype drawings were grouped as 1-2, 3-4, 5-6. 7-9 by BMI, body fat mass, weight, 1, 2-4, 5-6, 7-9 by WHR and 1-2, 3-4, 5-9 by percent body fat(ANOVA and Duncan's method). Conclusion: So quick instrument using somatotype drawings were useful tools for evaluation of obesity level and is applicable to screen degree of body fat in self-administered questionnaire survey.