• Title/Summary/Keyword: alternative design

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Design and construction of fluid-to-fluid scaled-down small modular reactor platform: As a testbed for the nuclear-based hydrogen production

  • Ji Yong Kim;Seung Chang Yoo;Joo Hyung Seo;Ji Hyun Kim;In Cheol Bang
    • Nuclear Engineering and Technology
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    • v.56 no.3
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    • pp.1037-1051
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    • 2024
  • This paper presents the construction results and design of the UNIST Reactor Innovation platform for small modular reactors as a versatile testbed for exploring innovative technologies. The platform uses simulant fluids to simulate the thermal-hydraulic behavior of a reference small modular reactor design, allowing for cost-effective design modifications. Scaling analysis results for single and two-phase natural circulation flows are outlined based on the three-level scaling methodology. The platform's capability to simulate natural circulation behavior was validated through performance calculations using the 1-D system thermal-hydraulic code-based calculation. The strategies for evaluating cutting-edge technologies, such as the integration of a solid oxide electrolysis cell for hydrogen production into a small modular reactor, are presented. To overcome experimental limitations, the hardware-in-the-loop technique is proposed as an alternative, enabling real-time simulation of physical phenomena that cannot be implemented within the experimental facility's hardware. Overall, the proposed versatile innovation platform is expected to provide valuable insights for advancing research in the field of small modular reactors and nuclear-based hydrogen production.

Human Experience Using Virtual Reality for an Optimal Architectural Design (효율적인 건축디자인을 위한 가상현실을 활용한 공간경험연구)

  • Chun, Soo Kyung;Cha, Seung Hyun
    • Journal of KIBIM
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    • v.14 no.1
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    • pp.1-10
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    • 2024
  • Virtual reality is one of the key emerging technologies of the 21th century and it has been used in a variety of ways in the fields of architectural research. Virtual reality is presented as an ideal alternative for studying the interaction between space and humans because it provides a realistic spacial experience while allowing experimenters to control environmental variables at a low cost easily. It allowed us to deepen our knowledge of human spatial experience in the built environment. However, existing reviews do not include the following points: 1) previous review research has been focused on using virtual reality technology in construction and engineering, not spatial experience, 2) recently, some review researches started to study the interaction between space and humans in the built environment, however, they do not suggest specific concepts of spatial experience. The present review aims to examine the existing literature about measuring spatial experience using virtual reality in architectural design. The study conducted a systematic qualitative review that analyzes and synthesizes the evolving literature regarding design elements, methodology, and usability. The study concludes with an overall discussion and their potential for providing further directions for future research.

A Study on The Grunge Fashion of the 1990's and 2000's (1990년대와 2000년대의 그런지(Grung) 패션에 관한 연구)

  • Chung Yu Kyoung;Geum Key-Sook
    • Journal of the Korean Society of Clothing and Textiles
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    • v.29 no.3_4 s.141
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    • pp.449-461
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    • 2005
  • The purpose of this study is to rediscover the hidden value of non-mainstreamers style which has been overlooked for the past decade by investigate the aesthetics and formative features of the Grunge fashion. The Grunge fashion was derived from explosive popularity of the early 90's grunge music. Grunge was the alternative anti-thesis against mainstream pop music and anti-fashion against mainstream fashion. Dirty, rubbish grunge style of the poor street youth and grunge musicians have raised to the high fashion by designers. And These trial of designers made people to notice the value of the non-mainstreamers street style like grunge. Actually, the grunge brought the shock with many argument to the 90's fashion field. But now, It became the classic of the street fashion. And It has potent influence on the music, culture and high fashion. The Grunge is a kind of links between music and fashion, street fashion and high fashion, sub culture and mainstream culture, the past and now. Grunge isn't only a fashion of appearance. It is the attitude of wearing clothes and living a life. Variety grunge style in the international street fashion, high fashion, typical musicians's fashion of the 1990's and the 2000's was researched for this study. These materials were gathered from music magazines, fashion magazines, movies, musics and books. As a results of analysis, Grunge has the formative features like mix & match, layering, patchwork, primitive edge, rag, retro, recycle, kinderwhore, sneer scribbling, disheveled hair. Grunge also has the Aesthetic features like the beauty of $disorder{\cdot}\;disharmony{\cdot}\;incompleteness{\cdot}\;kitsch{\cdot}\;poverty{\cdot}\;alternative{\cdot}\;eclectic{\cdot}$symbiosis. For the last 10 years, These features changed our fashion be more pluralistic and dynamic.

A Survey on the Aged Consumers' Needs for an Elderly Friendly and Sensitive Bathtub Alternative (노인 친화적 감성용 욕조 대안에 대한 노인 소비자의 요구 및 평가)

  • Choi, Byungsook;Kwon, Tae-Kyu
    • Journal of the Korean housing association
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    • v.24 no.6
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    • pp.41-49
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    • 2013
  • This study finds out the aged consumers' needs on the developing elderly friendly and sensitive bathtub. This bathtub focuses on enhancement of multi-senses and enhancement of health, safety & convenience during bath. The enhancing multi-senses would have four functions; therapy with color and aroma, the massage with micro water bubbles, the visual and auditory with TV & cinema, and the auditory with music and radio. Also, enhancing others of bathtub would have seven functions; emergency bell, blood-pressure check system for health condition, water temperature indicator, keeping water warm, reading a book in that, and controlling of house entrance door and a getting the phone during bath. The aged consumers' needs find throughout a questionnaire survey, and 497 data was analyzed. The main results are as follow. They consider a full bath behavior as a healthcare. They have an intention to purchase or use the elderly and friendly bathtub, and they prefer using it in common facilities to using it at home. They highly need health related function of bathtub, which are massage (64.4%), blood-pressure check system (55.1%) and aroma therapy (45.7%). The emergency bell (67.0%), keeping water warm (62.2%), and water temperature indicator (49.7%), related to safety & information function of bathtub, are needed. Also, they think tolerance for error and low physical effort in bathtub design alternative, opening door and inside sitting support, to be important.

Suitability of Alternative Dispute Resolution for the Fashion Industry - Focused on Arbitration for the Fashion Industry - (패션산업의 대체적 분쟁해결제도 적합성 - 패션산업의 중재 제도 도입을 중심으로 -)

  • Lee, Jae-Kyoung
    • Journal of Arbitration Studies
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    • v.25 no.1
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    • pp.87-105
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    • 2015
  • Intellectual property law is slowly fighting to keep pace with the rapid growth of the fashion industry. Copyright and patent law have proven only minimally effective in fashion, even in the US and other top fashion nations, forcing designers and fashion companies to rely on their trademarks to protect their work. Litigating trademark disputes in the fashion industry presents a host of problems as witnessed in a recent Christian Louboutin case, leading the parties to resort to Alternative Dispute Resolution(ADR) and Online Dispute Resolution(ODR). ADR methods, especially arbitration, are increasingly emerging as substitutes to litigation. Using these methods, the fashion industry (CFDA in the US case) should sincerely consider a self-regulating program in which its members, both fashion designers and corporations alike, can resolve disputes in a manner mutually beneficial to all parties in order to preserve the industry's growth, solidarity, and esteem In particular, for the US fashion industry, the ongoing Innovative Design Protection and Privacy Prevention Act(IDPPPA) anti-counterfeit legislation could have caused a chilling effect against innovation. New designers with no name and less resources who could normally flourish producing inspired-by designs may find themselves subject to copyright infringement legislation since the IDPPPA may expand the protection of established designers and brands with more resources. This fear and its implication could be solved by the fashion industry itself since fashion experts know best how to handle these fast-paced issues arising in the field. Therefore, stakeholders in the fashion industry should commit to protecting innovation within fashion on a long-term basis by establishing a panel handling an ADR process. This can mitigate the uncertainty created by the IDPPPA or any other legislation from elsewhere, which could result in a shying away from experimentation with inspired-by designs.

A Study on Sustainable Earth Architecture Characteristic from Ecological Aesthetic Point of View - Focus on the thoughts of Lao-tzu - (생태미학적 관점에서의 지속가능한 흙건축 특성에 관한 연구 - 노자사상을 중심으로 -)

  • Kim, Seol-Hyi;Hur, Bum-Pall
    • Korean Institute of Interior Design Journal
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    • v.20 no.4
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    • pp.54-62
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    • 2011
  • Fast industrialization caused from Descartes' dichotomy has enormously developed our world, but endangered the ecosystem. In this study, the ecosystem aesthetics is not only a critique against existing growth-ideology and technical civilization, but also the art pursuing the life as an artistic state and achieving the dream for qualitatively different new future. Lao-tzu's Natural Beauty assumes that the adaptation to natural laws can lead every purpose's achievement. Based on such theoretical alternative, the earth construction as a medium for coexisting mankind, nature and construction interacts with the other objects through the natural affinity, the energy efficiency, the material generation. The earth construction provides the images of naivety, naturalness, folk as well as emotional stability in cultural terms. This study's direction and method are as follows. First, it researches the ecosystem aesthetics from the Taoism viewpoint, the alternative for environmental healing based on theoretical reviews about the ecosystem aesthetics. Second, it researches the earth construction's ecosystem aesthetic features and construction features from the low-tech aspect in continual construction genealogy. Third, it analyzes some cases targeting domestic buildings by drawing out expression methods and features through the connectivity of earth construction and ecosystem aesthetics. The earth construction lies between the heaven and the earth, but coexists in natural cycle. The earth construction caused from ecosystem aesthetics will be a future alterative, and various studies about its features and methods should be continued.

The Trend of CM at Risk in the U.S Construction Market (미국 CM at Risk 시장 동향 및 시사점)

  • Chang, Chul-Ki
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2006.11a
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    • pp.67-73
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    • 2006
  • Alternative project delivery methods including design-build and CM at Risk have evolved as a means of meeting owner's diverse needs and implementing project efficiently with limited budget and time in more competitive construction environment. It is time to consider adopting alternative project delivery methods, especially CM at Risk, for domestic construction industry to enhance competitiveness and to provide various options for owners so that they can select more appropriate project delivery methods for the facility being planned. This research report derives suggestions from investigating how CM at Risk has been evolved in the US construction market. Besides the analysis of CM at Risk market in the US construction industry, the characteristics of companies whose market share are in Top 100, the type of facility usually built by this method were investigated. Based on the analysis of CM at Risk in the US, the prepositions in adopting CM at Risk to domestic construction industry and the possibility of adopting this method have been identified.

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Detergency improvement of hydrophilic soils in dry cleaning process (드라이클리닝 시 친수성 오구의 세탁성 향상을 위한 연구)

  • Kwak, Soo-Kyoung;Sang, Jeong Seon;Park, Myung-Ja
    • Journal of the Korea Fashion and Costume Design Association
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    • v.21 no.4
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    • pp.213-220
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    • 2019
  • The dry cleaning effect related to the type of soil and fiber was analyzed using silicone and alcohol-based solvents(ethyl alcohol, isopropyl alcohol, acetone) that are relatively safe for the human body and environment to improve the detergency of hydrophilic soils in dry cleaning system. Based on this analysis, an effective dry cleaning method to be carried out for improving the detergency according to the type of hydrophilic soils. After dry cleaning was performed using 20 types of artificial soiled fabrics consisting of 7 types of fibers and 4 types of hydrophilic soils, the detergency was measured and the results were compared and analyzed by solvents and fiber types. The results are presented as follows; first, the detergency of hydrophilic soils using silicone solvents showed a low rate of detergency. In particular, the tannin soil showed a lower level of detergency compared to the protein soil. Second, the detergency of hydrophilic soils using silicon solvents with dry soap differed in some detergency according to the soil and fiber types. Especially, the detergency of curry soil on cotton fabric showed significant improvement. Third, the protein soil was not removed from dry cleaning using alcohol-based solvents, but the effect of dry cleaning of curry soil on both cotton and polyester fabric was substantially improved. As a result, the elimination of blood soil is more effective in silicon solvents than in alcohol-based solvents. The removal of tannin soils may improve detergency by adding dry soap to silicon solvents or by using alcohol-based solvents as alternative solvents. The use of alternative solvents such as silicon and alcohol solvents can contribute to the environmental improvement of the dry cleaning industry, which uses petroleum-based solvents. It is also expected to provide consumers with the opportunity to choose eco-friendly and efficient dry cleaning methods.

Construction Cost-Schedule Integration Management Methodolgy by using Progress Integration Unit (성과측정유닛을 활용한 건설 비용 - 일정 통합관리 방안)

  • Kang, Namhee;Choi, Jaehyun
    • Korean Journal of Construction Engineering and Management
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    • v.18 no.3
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    • pp.42-51
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    • 2017
  • Measuring and evaluating project progress and performance are the key element of the construction project success. Construction progress is typically measured quantitatively by evaluating cost and time allocated to the project deliverable, and thus properly integrating cost and time is essential to the project management. This research was performed to propose an alternative methodology to integrate the cost and time and provide a framework for the progress measurement. The researchers developed a typical work process for the cost and schedule planning and also developed an alternative cost-schedule integration method by using progress integration units (PIU). A discipline of a construction phase served as a common level for WBS and CBS integration, so the PIUs'were defined under discipline. A case study project was selected to validate the developed methodology. The result showed the proposed method improved efficiency of cost and time integration. The result also showed the excluding material for the progress measurement purpose significantly reduced the bias of progress measurement.

Design Route Analysis of Dangerous Road for Traffic Accident using GIS (GIS를 이용한 사고 위험도로의 설계노선 분석)

  • Lee, Kye-Dong;Jung, Sung-Heuk;Lee, Jae-Kee
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.26 no.6
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    • pp.591-598
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    • 2008
  • Recently, the government has improvement projects of dangerous road for the site that has very high accident rate due to bad geometric structures of the road. Although, route selecting of the road is a basic and important process, but the process of route selecting must consider the technical, safety and environment factor together. Also, the technology for the 3-dimensional terrain model can be used as an important factor in planning and designing for selecting alternative route projects. In the course of experimenting with the 3-dimensional topography generated by the combination of the digital map and drawing of route, the technology as been developed to offer the multi-dimensional access to the potential construction sites from the nearby main roads. This 3-dimensional digital elevation model has made it possible to make various terrain analysis base on GIS, which provides real-time virtual access to the designated construction sites for development planning and construction projects. Therefore, this study presents a reasonable plan for route selecting from some alternative routes through subjective evaluation and classify the methods linked basic design of road construction.