• Transactions on Electrical and Electronic Materials
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• v.6 no.2
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• pp.78-84
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• 2005

Standard crystalline solar cells are generally fabricated with the front grid pattern of silver paste contact. We have reported a detailed theoretical analysis of the proposed segmented cross grid line pattern in this paper. This work was carried out for the optimization of spacing and width of grid finger, main busbar and sub-busbar. The overall electrical and optical losses due to front contact were brought down to $10\%$ or even less as compared to the usual loss of $15\%$ or more in the conventional screen printed silver paste technology by choosing proper grid pattern and optimizing the grid parameters. The total normalized power loss for segmented mesh grid with plated metal contact was also observed and the total power loss could be brought down to $10.04\%$ unlike $11.57\%$ in the case of continuous grid and plated contact. This paper is able to outline the limitations of conventional screen printed contact.

• Journal of Korean Society for Quality Management
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• v.33 no.4
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• pp.103-110
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• 2005

Advanced function has been considered to be the most important aspect of the cellular phone. However, leading companies are now implementing the fashion branding strategy which stresses both high technology and appealing design. By means of the conjoint analysis, this research focuses on identifying the preferred design profile related to style of the key cover, color and texture of the case, and presence or absence of the noctilucent material coated on the part of surface. We also evaluate the relative importance of factors to determine the design concept of new cellular phone. Results indicate that consumers most prefer the silver-colored, sliding key cover phone with soft and noctilucent surface.

• Journal of The Korea Institute of Healthcare Architecture
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• v.15 no.3
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• pp.21-29
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• 2009

Recently, the service for nursing home has been transforming in an overall way, and along with that, the supply of the recuperation facilities for the elderly has been expanding. However, the quantitative expansion of those facilities has not been accompanied by the qualitative supply. In consideration of those shortcomings of the existing facilities, it may be necessary to ensure an improvement in qualitative terms. This study investigated and analyzed the Nursing home, examined the current situation, reconsidered the state of recuperation facilities for the elderly as part of effort to prepare for the silver society, and present measures for improvement in an attempt not to repeat mistakes that have been observed in the existing facilities in planning Nursing home that will be open and built in the upcoming days, which aimed to provide basic data that can be used in the future and explore the direction of relevant design.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2001.05a
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• pp.25-28
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• 2001

In modem society, the development of science and industrialization has brought economic growth, and better living environment, improved food life, advanced medicine, and increased span of life have leaded us into the aging society. In the current situation to move toward the aging society, it's needed to prepare housing planning for retirement community in consideration of the physical and psychological and behavioral features of the elderly to raise their quality of life. The purpose of this study was to map out proper housing planning for retirement community in consideration of the physical, psychological and behavioral characteristics of senior citizens, instead of just focusing on comfortable and convenient one.

• The monthly packaging world
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• s.334
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• pp.48-66
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• 2021

산업통상자원부가 주최하고 한국디자인진흥원이 주관하는 우수디자인(GD)상품 선정은 산업디자인진흥법에 의거해 1985년부터 매년 시행되고 있으며, 공정한 심사를 거쳐 디자인이 우수한 상품과 서비스에 정부인증 마크인GD(Good Design)마크를 부여하는 제도이다. 2020년에는1208점이출품, 총 405점이 GD로 선정되었으며, 이 중 Grand prize, Gold prize, Silver prize, Bronze prize 등 총 79점이 수상의 영광을 안았다. 우수디자인(GD)상품 선정은 최근 2년 이내 국내 또는 국외에서 판매를 개시하였거나 당해년도 판매 예정인 상품을 대상으로 하며, 제품, 시각/정보디자인, 디지털미디어/콘텐츠디자인, 공간/환경디자인, 패션/텍스타일디자인, 서비스/경험디자인, 산업공예 디자인 등 7개 부문, 총 27개 분야로 구성됐다. 포장은 시각/정보 디자인 부문 내 패키지 디자인 분야 외에도 제품 디자인 등 다수의 분야에서 선정됐다. 다음에 우수디자인으로 선정된 포장 관련 상품들을 살펴보도록 한다.

• The monthly packaging world
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• s.322
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• pp.48-64
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• 2020

산업통상자원부가 주최하고 한국디자인진흥원이 주관하는 우수디자인(GD)상품 선정은 산업디자인진흥법에 의거해 1985년부터 매년 시행되고 있으며, 공정한 심사를 거쳐 디자인이 우수한 상품과 서비스에 정부인증 마크인 GD(Good Design)마크를 부여하고 있다. 2019년에는 1041점이 출품, 총 340점이 GD로 선정되었으며, 이 중 Grand prize, Gold prize, Silver prize, Bronze prize 등 총80점이 수상의 영광을 안았다. 우수디자인(GD)상품 선정은 최근 2년 이내 국내 또는 국외에서 판매를 개시하였거나 당해연도 판매 예정인 상품을 대상으로 하며, 제품, 시각/정보디자인, 디지털미디어/콘텐츠디자인, 공간/환경디자인, 패션/텍스타일디자인, 서비스/경험디자인, 산업공예 디자인 등 7개 부문, 총 27개 분야로 구성됐다. 포장은 시각/정보 디자인 부문 내 패키지 디자인 분야외에도 제품 디자인 등 다수의 분야에서 선정됐다. 다음에 우수디자인으로 선정된 포장관련 상품들을 살펴보도록 한다.

• The monthly packaging world
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• s.346
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• pp.48-63
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• 2022

산업통상자원부가 주최하고 한국디자인진흥원이 주관하는 우수디자인(GD)상품 선정은 산업디자인진흥법에 의거해 1985년부터 매년 시행되고 있으며, 공정한 심사를 거쳐 디자인이 우수한 상품과 서비스에 정부인증 마크인 GD(Good Design)마크를 부여하는 제도이다. 2021년에는 1,480점이 출품, 총 514점이 GD로 선정되었으며, 이 중 Grand prize, Gold prize, Silver prize, Bronze prize 등 총 80점이 수상의 영광을 안았다. 우수디자인(GD)상품 선정은 최근 2년 이내 국내 또는 국외에서 판매를 개시하였거나 당해년도 판매 예정인 상품을 대상으로 하며, 제품, 시각/정보 디자인, 디지털미디어/콘텐츠 디자인, 공간/환경 디자인, 패션/텍스타일 디자인, 서비스/경험디자인, 산업공예 디자인 등 7개 부문, 총 27개 분야로 구성됐다. 포장은 시각/정보 디자인 부문 내 패키지 디자인 분야 외에도 제품 디자인 등 다수의 분야에서 선정됐다. 다음에 우수디자인으로 선정된 포장 관련 상품들을 살펴보도록 한다.

• Journal of the Korean Society of Clothing and Textiles
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• v.35 no.2
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• pp.156-166
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• 2011

This study investigated the casual jacket design preferences of women aged 50s and 60s and suggested a prototype design for functional clothing. All age groups liked the casual jacket with a length between the waist and hip, a convertible collar, and a single-breasted design. Those in their 50s preferred fitted or semi-fitted casual jackets while those in their 60s preferred semi-fitted casual jackets. Although, there were significant differences between the preferred jacket designs and ready-made brand jacket designs, most brand jacket designs were casual, semi-fitted, middle-hip length, single-breasted, and with stand-rolled or convertible collars. The analysis of the sleeve styles in brand jackets showed that consumers needed designs that are more decorative. Fashion designers for senior citizens need to design elderly clothing that is comfortable, fashionable, functional, and considers a universal design for ease of clothing function. It will also make the senior citizen fashion market more appealing to consumers. To provide jacket designs for senior citizens, we suggested casual jacket designs for embedding a functional device as well as a new jacket design library for women in their 50s and 60s.

• Journal of the Korean Society of Clothing and Textiles
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• v.48 no.1
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• pp.94-107
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• 2024

This study developed compression pants with excellent wearability and signal quality by approaching the design of wireless sEMG monitoring pants from the perspective of technical design, including the evaluation of wearability and the stable wireless transmission of signals through electrode and circuit design, and using e-textiles. An electrode, sewn with silver thread and a circuit stitched in a zigzag pattern using stainless steel wire, were applied. Additionally, polyurethane sealing tape was used to enhance adherence to the skin and reduce electrical resistance. Conductive snaps completed the design, allowing attachment and detachment to the bio-signal acquisition mainboard. Through the subjects' evaluation, it was determined that the final pants were applied with a pattern reduction rate of 25% to provide superior comfort according to different body parts while also minimizing skin irritation around the thigh circuit. The final pants for wireless sEMG monitoring, which demonstrated stable transmission of wireless measurements, was positively evaluated in terms of cognitive acceptability. This study is significant in that it achieved an optimal design by considering both technical aspects and the electrical characteristics of bio-signal monitoring garments, as well as the wearer's perception when designing smart wear.

• Journal of the korean academy of Pediatric Dentistry
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• v.23 no.3
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• pp.746-763
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• 1996

An alternative design to conventional class II cavity preparation for proximal carious lesions is the tunnel preparation. It preserves the marginal ridge intact, thus making it possible to maintain the natural contact relationship with the adjacent tooth and minimize tooth reduction. This in vitro study was purposed to evaluate the effect of the materials' elastic constants and shear-bond strength on the marginal ridge fracture resistance of teeth restored by the tunnel technique, and to find the materials of choice for tunnel restorations. $Resinomer^{(R)}$, $Ketac-silver^{(R)}$, $Miracle-Mix^{(R)}$, and Tytin were used as restorative material. The elastic constants of each restorative material were evaluated by ultrasonic pulse measurement. Young's modulus and bulk modulus of the restorative materials were evaluated in three specimens for each material type. The shear-bond strength of the restorative materials to the dentin surface was measured after thermocycling 400 times between 6 and $60^{\circ}C$, using ten specimens for each material type. For measuring marginal ridge strength, 60 sound extracted molar teeth were distributed into six groups by size. Sound molar teeth were used as a Control group and unfilled prepared teeth were grouped as Unrestored. Another four groups were named Resinomer group, Ketac-Silver group, Miracle Mix group, and Tytin group by type of restorative material. Tunnel cavity preparation was done with ' 1/2, 2, and 4 round burs in sequence. Initial access to proximal surface was made through an occlusal access preparation started at least 2mm from the marginal ridge, and the proximal opening was formed about 2.5mm below the marginal ridge. After restoration and thermocycling, marginal ridge strength was measured using a universal testing machine. The results were as follows: 1. The Young's modulus of $Tytin^{(R)}$ was 63.95 GPa, followed by $Ketac-Silver^{(R)}$ 27.60 GPa, $Miracle-mix^{(R)}$ 18.48 GPa, and $Resinomer^{(R)}$ 10.74 GPa showing significant differences between the groups(P<0.05). The bulk modulus of the materials showed the same order as Young's modulus. The value of $Tytin^{(R)}$ showed 59.57 GPa indicating that it will deform less than other materials under the same stress. It was followed by $Ketac-Silver^{(R)}$ 23.57 GPa, Miracle $Mix^{(R)}$ 12.50 GPa, and $Resinomer^{(R)}$ 11.60 GPa. 2. The Resinomer group had a shear-bond strength of 7.41 MPa which was significantly higher than those of the Ketac-Silver group (1.80 MPa) and the Miracle Mix group (2.84 MPa) (P<0.01). All the specimens of Tytin group detatched from the dentin surface during thermocycling. 3. The mean marginal ridge strength of the Unrestored group(46.14 kgf) was significantly lower than that of the Control group (84.24 kgf) (P<0.01). The marginal ridge strength of teeth restored by the tunnel technique was, in order, Ketac-Silver group 74.06 kgf, Miracle Mix group 73.36 kgf, Resinomer group 63.47 kgf, and Tytin group 58.76 kgf. The Ketac-Silver, Miracle Mix, and Resinomer groups showed no significant difference with the Control group (P>0.05), but the Tytin group showed significantly lower strength compared to the Control group(P<0.05). The results showed that the marginal ridge strength of the teeth restored by the tunnel technique was not significantly lower than that of sound teeth. They also demonstrated that the bonding strength of the restorative material to the tooth surface should be high and the modulus of elasticity should not be lower than that of the tooth in order to restore the marginal ridge strength to its natural condition.