• 한국결정성장학회지
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• 제18권1호
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• pp.45-49
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• 2008

태양광 산업의 성장에 따른 개선된 실리콘 잉곳 제조 방법의 개발은 중요한 이슈 중 하나이다. 단결정 실리콘 웨이퍼에 비해 가격 변에서의 유리함으로 인해 현재 다결정 실리콘 웨이퍼가 태양광 시장의 60% 이상을 점유하고 있으며 주조법, 열교환법, 전자기 주조법 등을 포함한 몇 가지 응고 공정들이 개발되어 오고 있다. 이 논문에서는 ADS 법을 이용하여 대형 다결정 실리콘을 성장하기 위한 공정모사를 수행하였다. ADS 법은 적은 열 손실, 짧은 공정 시간 및 효율적인 방향성 응고가 가능하다는 장점을 가지고 있다. ADS 공정의 수치해석은 온도 분포를 확인하기 위해 유체역학을 적용하였고, 공정모사 결과 240 kg 이상의 대형 다결정 실리콘 잉곳의 효율적인 방향성 응고가 가능함을 확인하였다.

• 방사선산업학회지
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• 제3권1호
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• pp.7-11
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• 2009

Hard magnet was usually used by coating $SiO_2$ ceramic thick films followed by the thermal annealing process. In this work, the alternative annealing process for NdFeB magnets using e-beam sources (1~2 MeV, 50~400 kGy) was investigated. NdFeB magnets was coated with ceramic thick films using the spray method. The optimal annealing parameter for e-beam source reveals to be 1 MeV and 300 kGy. The sample prepared at 1 MeV and 300 kGy was characterized by the analysis of the surface morphology, film hardness, adhesion and chemical stability. The mechanical property of thick film, especially film hardness, is better than that of thermal annealed samples at $180^{\circ}C$. As a result, e-beam annealing process will be one of candidate and attractive heat treatment process. In future, manufacturing process will be carried out in cooperation with the magnet company.

• 한국BIM학회 논문집
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• 제8권4호
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• pp.23-33
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• 2018

Recently, the industry actively adopts the cutting-edge technologies of the fourth industrial revolution and uses them to enhance the productivity and service of mass-customization. The manufacturing industry is creating new processes and business models by achieving digital transformations through a lean start-up approach aimed at achieving the highest customer satisfaction with minimal resources. Although attempts are made to manufacture the building by introducing the latest technology in architecture, it is applied sporadically, not as an integrated system, in the entire phase of the architectural project. This paper analyzes the changes in the construction industry through the application of core technologies of the fourth industrial revolution. Design processes are analyzed for the digital transformation of the construction industry by case study of advanced architectural design practice. A novel design concept model 'Architectural lean startup' is proposed by combining the architectural process and the lean start up method. Through the design of the bus stop based on the architectural lean startup concept, it is confirmed that the designer repeats the 'Generate-Test-Analysis' to develop the design and generate the final result.

• 상하수도학회지
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• 제35권6호
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• pp.437-454
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• 2021

This study investgates Korean water technology through the water market perspective and analyses its competitiveness. Based on the water technology classification, water technology competitiveness is analysed through the technological influence index and market dominance index which are based on the extracted water technology patents from the US, Europe, Korea, and Japan for the last decade. As a result, the Korean water technology patents were lack in influence and competitiveness in global market considering the large volume of patents. There are two most tech-influential industries in Korea; manufacturing industry consisting pipes, sterilization, disinfection, and advanced water purification equipment, and construction industry including seawater desalination and water resource development. Due to the domestic usage of the patents, the Korean water technology patents scored low in global market PFS(Patent Family Size) index compared to their CPP(Cites Per Patent) index. The study is meaningful in a way that the analysis on Korean water technology competitiveness using water technology classification system and patent analysis was conducted based on the perspective of the global water market.

• 대한의용생체공학회:의공학회지
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• 제43권3호
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• pp.153-160
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• 2022

As new types of medical devices are emerging through convergence with advanced technology, innovative technologies are becoming hot issues in health policy because of their disruptiveness. This study analyzed the innovative medical device management systems in the US, China and Korea. Innovative medical devices have been defined differently depending on the country's management system, but in common, they are defined as products that do not exist or have dramatically improved performance compare to existing products by applying innovative technologies. Innovative medical devices have been supported by regulatory authorities during product development and approval processes. While the US and China have more than 300 products designated as innovative medical devices with diverse functions, application fields, and manufacturing countries considering the initial situation of the implementation for the system, Korea has only 16 products, mainly radiology and diagnostic devices and made in Korea only as innovative medical device. In addition, Korea shows the highest market approval rate of innovative medical devices compare to the US and China, and it is necessary to prepare the approval process in consideration of product diversity.

• 한국인터넷방송통신학회논문지
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• 제23권1호
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• pp.163-170
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• 2023

본 논문은 제조설비의 자율제어와 상태판별 알고리즘을 위한 시멘틱 모델링 기술에 대해 소개한다. 디지털 트윈 기술과 스마트 팩토리의 다양한 ICT 기술의 발전으로 제조업은 새로운 생산 관리모델이 구축되고 있다. 발전된 스마트 제조기술을 바탕으로 상태판별 알고리즘은 자율제어와 공장 내의 설비 문제를 빠르게 파악하고 대처하기 위한 방법론으로 제시되었다. 그러나 기존의 상태판별 알고리즘은 사용자 또는 관리자에게 그리드 맵을 통해 주요 정보를 알려주고, 이에 대처하는 방향으로 제시되었다. 하지만 스마트 제조기술의 고도화와 방향성은 유연 생산과 소비자 니즈에 맞춘 생산등으로 다변화 하고 있다. 이에 따라 본 논문에서는 시멘틱 기반의 Linked List 자료구조를 이용하여 공장을 설계 구축하고 그래프 기반 정보를 통해 사용자 또는 관리자에게 필요한 정보만을 제공하여 관리의 효율성을 높일 수 있는 기술을 소개한다. 이러한 방법론은 유연 생산과 다품종 소량 생산 등에 적합한 구조로 활용될 수 있다.

• International Journal of Advanced Culture Technology
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• 제8권1호
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• pp.135-140
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• 2020

The main battlefield of 'made in China 2025' proposed by the Chinese government is the deep integration of industrialization and informatization, among which intelligent manufacturing and new energy vehicles are the key links. New energy vehicle refers to the use of unconventional automotive fuel as a power source (or use conventional automotive fuel, the use of new vehicle-mounted power plant), integrated vehicle power control and driving aspects of advanced technology, the formation of advanced technical principles, with new technology and the structure of the vehicle. BYD's success in the battery, I T and automobile industries has attracted the attention of the industry, making it a shining new star in the Chinese business community. BYD 's innovation, diversification and corporate culture construction have certain enlightenment to the development of China's small and medium-sized enterprises. Therefore, by looking at the Chinese network literature, about BYD's research mainly focused on the development strategy, corporate finance, corporate performance, and corporate marketing, etc. This paper will take BYD as the research object and focus on corporate culture. Through literature analysis and qualitative analysis, it will summarize and further analyze the unique corporate culture of BYD, its important role, and provide relevant theoretical references for the construction and development of corporate culture in other industries.

• Journal of Welding and Joining
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• 제31권6호
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• pp.58-64
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• 2013

Several joining methods involving resistance welding, laser welding, ultrasonic welding and mechanical joining are currently applied in manufacturing lithium-ion batteries. Cu and Al alloys are used for tab and bus bar materials, and laser welding characteristics for these alloys were investigated with similar and dissimilar material combinations in this study. The base materials used were Al 1050 and oxygen-free Cu 1020P alloys, and a disk laser was used with a continuous wave mode. In bead-on-plate welding of both alloys, the joint strength was higher than the strength of O tempered base material. In overlap welding, the effect of welding parameters on the tensile shear strength and bead shape was evaluated. Tensile shear strength of overlap welded joint was affected by interfacial bead width and weld defect formation. The tensile-shear specimen was fractured at the heat affected zone by selecting proper laser welding parameters.

• 무역학회지
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• 제44권5호
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• pp.29-43
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• 2019

This study aims to estimate the economic effect of Korea's transition to a developed country in WTO negotiations. If Korea develops into an advanced country, it must give up many advantages in the agricultural sector. In particular, limiting the scope of sensitive items, giving up the selection of special items, and drastic tariff reductions are expected to have greater negative effects on the agricultural sector. According to research results, Korea's GDP rose slightly from 0.2 to 0.8 percent following the DDA settlement. Especially when China is classified as an advanced country along with Korea, Korea's GDP appears to be growing even more. On the other hand, damage is expected in most areas of agriculture. The trade deficit in the agriculture sector is expected to widen as output in the agricultural sector decreases, and import growth exceeds export growth. In the non-agricultural sector, there are no significant differences in the change in WTO status. However, if China is grouped together as an advanced country, the export growth rate of the Korean manufacturing industry appears greater.

• 디지털융복합연구
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• 제15권10호
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• pp.201-210
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• 2017

본 연구는 기술경영활동이 기업성과에 어떤 영향을 미치는지, 기업의 혁신활동이 기업경영활동과 기업성과 간의 관계에서 매개효과가 있는지 분석하여 그 연구결과를 기업실무에 적용할 수 있는지 검증해보고자 하였다. 첫째, "기술경영 활동은 기업성과에 긍정적인 정(+)의 영향을 미칠 것이다."는 가설1은 부분적으로 채택되었다. 둘째, 기술경영활동과 재무성과 간의 관계에서 제품혁신은 기술리더쉽에 완전매개효과를, 기술경영활동과 비재무성과 간의 관계에서도 제품혁신은 기술리더쉽에 완전매개효과를 가지는 것으로 확인되었다. 공정혁신의 매개효과 분석을 위하여 3단계 매개회귀분석을 실시한 결과, 기술경영활동과 재무성과 간의 관계에서 공정혁신은 기술리더쉽에 부분매개효과를 기술경영활동과 비재무성과 간의 관계에서 공정혁신은 기술리더쉽에 완전매개효과를 가지는 것으로 나타났다. 향후 연구조사 대상의 전국적인 확대와 제조업과 비제조업, 중소기업과 대기업 등으로 나누어 분석한다면 학문적 관점이나 실무적 관점에서 상당한 의미가 있을 것으로 사료된다.