• 한국의류산업학회지
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• 제24권5호
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• pp.605-617
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• 2022

The purpose of this study was to investigate the influence of retailing types on consumers' omnichannel experience while purchasing fashion products. The omnichannel experience occurs when retailers provide seamless customer experience across the various touchpoints of retail channels. In this empirical study, retail types were categorized into single-brand stores and multi-brand stores, and the relationship among store loyalty, brand loyalty, and customer retention was observed by the research model. A survey was conducted on the global consumers who had experience in purchasing fashion products via the omnichannel using Amazon Mechanical Turk; as a result, 351 responses were analyzed. The mediating and moderating effects of loyalty constructs and retail types were analyzed using Process Macro 4.0. The results indicated that a seamless omnichannel experience affects customer retention by mediating store loyalty and brand loyalty; additionally, the dual mediating effect of store loyalty and brand loyalty was significant. The moderating effect according to retail type was identified, and the moderated mediation effect of store loyalty was validated. The results showed that multi-branded retailers' store loyalty had a stronger influence on customer retention than that of single-brand retailers and exhibited the relationship between store loyalty and brand loyalty as well as retail types (single vs multi) in a seamless omnichannel customer experience.

• Nuclear Engineering and Technology
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• 제53권8호
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• pp.2582-2590
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• 2021

The high-energy milling is one of the most extended techniques to produce Oxide dispersion strengthened (ODS) powder steels for nuclear applications. The consequences of the high energy mill process on the final powders can be measured by means of deformation level, size, morphology and alloying degree. In this work, an ODS ferritic steel, Fe-14Cr-5Al-3W-0.4Ti-0.25Y₂O₃-0.6Zr, was fabricated using two different mechanical alloying (MA) conditions (M_std and M_act) and subsequently consolidated by Spark Plasma Sintering (SPS). Milling conditions were set to evidence the effectivity of milling by changing the revolutions per minute (rpm) and dwell milling time. Differences on the particle size distribution as well as on the stored plastic deformation were observed, determining the consolidation ability of the material and the achieved microstructure. Since recrystallization depends on the plastic deformation degree, the composition of each particle and the promoted oxide dispersion, a dual grain size distribution was attained after SPS consolidation. M_act showed the highest areas of ultrafine regions when the material is consolidated at 1100 ℃. Microhardness and small punch tests were used to evaluate the material under room temperature and up to 500 ℃. The produced materials have attained remarkable mechanical properties under high temperature conditions.

• 한국초전도ㆍ저온공학회논문지
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• 제9권4호
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• pp.19-23
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• 2007

The superconducting properties of several HTS coated conductors (CC), which had different tape structures, fabricated by KERI, X and Y institutes were compared. We have fabricated the $high-J_c$ SmBCO CC, which has 273.5 A/cm, $1.2MA/cm^2$ and 93.5 K for $I_C,\;J_C\;and\;T_{c-zero}$, respectively, using the EDDC (Evaporation using Drum in Dual Chambers) process. Both X and Y institutes CCs, however, were purchased. The n-values of KERI, X and Y institutes CCs are 58.5, 40.7 and 31.5 in $V=1{\sim}10{\mu}V$ criterion, respectively. The in-field properties of $I_C$ at 77K were investigated and the $J_C(B)/J_C(0G)$ at 0.5 T with $B{\perp}$ ab-plane are 0.31, 0.19 and 0.24 for KERI, X and Y institutes CCs, respectively. From the $I_C-{\theta}-B$ measurement, we observed that the ab-plane of ReBCO phase was tilted for the ab-plane of substrate in the KERI and X institutes CCs. The tilted angle is about 5 degree. We confirmed that the peak shift (as an inclined texture) was observed by X-ray (102) pole figures of the SmBCO for the KERI CC.

• 한국초전도ㆍ저온공학회논문지
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• 제10권2호
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• pp.16-19
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• 2008

Angular dependence of critical current density of SmBCO coated conductor fabricated by co-evaporation method was investigated. For comparison, three samples were fabricated by a co-evaporation method and one sample was fabricated by a pulsed laser deposition process. The deposition system, named EDDC (Evaporation using Drum in Dual Chambers), is a batch type co-evaporation system, which is composed of reaction chamber and evaporation chamber. The normalized critical current density ratio ($I_c/I_c$(H//ab-plane)) of EDDC-SmBCO samples was found to be higher than that of PLD-YBCO sample in the whole range of angle. While the EDDC-SmBCO samples evidently had a peak at the angle of H//c-axis in the plot of the angular dependence of critical current, the normalized critical current of PLD-YBCO sample decreased monotonically without any peak as angle increased. The field dependence of critical current under the magnetic field parallel to the normal direction of those samples showed similar aspect in the range of $0\;G{\sim}5000\;G$.

• Journal of Information Processing Systems
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• 제19권2호
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• pp.139-148
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• 2023

Current food-traceability platforms suffer from problems such as inconsistent traceability standards, a lack of public credibility, and slow access to data. In this work, a combined code and identification method was designed that can achieve more secure product traceability using the dual anti-counterfeiting technology of a QR code and a hidden code. When the QR code is blurry, the hidden code can still be used to effectively identify food information. Based on this combined code, a food-safety traceability platform was developed. The platform follows unified encoding standards and provides standardized interfaces. Based on this innovation, the platform not only can serve individual food-traceability systems development, but also connect existing traceability systems. These will help to solve the problems such as non-standard traceability content, inconsistent processes, and incompatible system software. The experimental results show that the combined code has higher accuracy. The food-safety traceability platform based on the combined code improves the safety of the traceability process and the integrity of the traceability information. The innovation of this paper is invoking the combined code united the QR code's rapidity and the hidden code's reliability, developing a platform that uses a unified coding standard and provides a standardized interface to resolve the differences between multi-food-traceability systems. Among similar systems, it is the only one that has been connected to the national QR code identification platform. The project has made profits and has significant economic and social benefits.

• Composites Research
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• 제19권6호
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• pp.8-15
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• 2006

본 연구에서는 대형 LCD 패널 제조용 복합재 롤러에 대한 3차원 회전체 동역학 해석을 수행하였다. 전산해석은 로터시스템의 회전에 의한 자이로스코픽 영향을 고려한 일반적인 유한요소법에 근거하고 있다. 본 연구에서는 유럽의 범용 상용 유한요소해석 프로그램인 SAMCEF를 활용하였으며 이는 전문적인 로터해석 모듈을 포함하고 있다. 전산해석 기법의 검증을 위해 베어링 지지된 2중 회전축 로터 모델에 대한 해석 및 비교결과를 제시하였다. 설계된 복합재 롤러 모델에 대한 상세 유한요소 모델을 구축하였으며, 중력 효과를 고려한 전산해석을 통하여 실제 운용환경에서의 진동특성을 고찰하였다. 이의 결과로 다른 회전조건에 대한 로터 안정성 선도 및 불평형 응답에 대한 결과들을 제시하였다.

• 예술인문사회 융합 멀티미디어 논문지
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• 제6권4호
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• pp.341-349
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• 2016

글로벌 시대의 요구에 부응하기 위해 교육 분야에서도 글로벌 교육에 대한 필요성과 중요성이 급증하고 있다. 하지만 보는 관점에 따라 글로벌 교육의 정의와 모델에 대한 합의가 아직 명확하지 않고 글로벌 교육 과정에서의 고비용성, 저효과성, 지속성 결여 등으로 인해 실제 글로벌 교육의 성과는 예상보다 기대에 미치지 못하고 있다. 더구나 예비 교원의 글로벌 능력을 함양하기 위한 글로벌 교육에 관한 연구는 거의 이루지지지 않고 있다. 본 연구는 예비 교원의 글로벌 교육을 중심으로 IT 융합 접근 방법을 연구하였다. 본 연구에서는 우선 국내에서 시행되고 있는 글로벌 교원 양성을 위한 글로벌 교육 프로그램을 비교 분석하였다. 또한, 글로벌 교육에서의 제약 사항들을 해결할 수 있는 IT 융합 교육 시스템을 연구하여 구체적인 IT 융합 글로벌 교육 방법들을 알아보았다. 특히 빅데이터 분석 기술을 기반으로 복수학위나 교환학생 프로그램에 도움을 줄 수 있는 글로벌 교육과정 이수 추천 시스템을 제시하였다.

• 대한토목학회논문집
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• 제28권4B호
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• pp.421-428
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• 2008

최근 들어 우리나라 전해역에 걸쳐 발생하고 있는 침식은 사회적인 문제가 되어왔다. 하지만, 해안구조물에 의한 기존의 방법으로 해안선을 보호하는 것이 "파랑장에 친화적인가?"라는 관점에서 개선의 여지가 있다. 새로운 형식의 철재형 이안제는 권혁민 등(2007)에 의해 제안되었다. 본 형식은 다수의 파일과 상부에 파랑진행방향과 수평으로 설치된 소파장치로 구성되어 있다. 본 형식은 해수유통원활, 대수심 축조수월, 공기단축 등의 장점이 있다. 본 연구는 소파제로서 철재형 이안제의 상부에 거치가 가능한 이열 조합판의 투과율을 실험적으로 평가했다. 일방향 불규칙파 시스템에 의한 모형실험을 통하여 반사율, 소파율, 투과율에 관하여 분석했다. 실험결과, 파형경사가 클수록 그리고 조합판의 폭-파장비가 클수록 투과율이 작아짐을 보였다. 본 연구는 이열 소파판 조합에 대하여 투과율 산정을 위한 직선식을 제안했다.

• 영어영문학
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• 제56권6호
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• pp.1255-1279
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• 2010

Much has already been learned about what goes on in the minds of second language writers as they compose, yet, oddly enough, until recently little in the L2 research literature has addressed writing and mental imagery together. However, images and imaging (visual thinking) play a crucial role in perception (the basis of mental imagery), in turn, affecting language, thinking, and writing. Many theorists of mental imagery also agree that more than just language accounts for how we think and that imagery is at least as crucial as language. All of these demands, to be sure, are compounded for EFL students, which is why I investigate EFL students' writing process, focusing on the use of mental imagery and its relationship to the writing. First I speculate upon some ways that imagery influences EFL students' composing processes and products. Next, I want to explore how and whether the images in a writer's mind can be shaped effectively into a linear piece of written English in one's writing. I studied two university undergraduate EFL students, L and J. They had fairly advanced levels of English proficiency and exhibited high level of writing ability, as measured by TOEFL iBT Test. Each student wrote two comparison and contrast essays: one written under specified time limitations and the other written without the pressure of time. In order to investigate whether the amount of time in itself causes differences within an individual in imagery ability, the students were placed under strict time constraints for Topic 1. But for Topic 2, they were encouraged to take as much time as necessary to complete this essay. Immediately after completing their essays, I conducted face-to-face retrospective interviews with students to prompt them for information about the role of imagery as they write. Both L and J have spent more time on their second (untimed) essays. Without time constraint, they produced longer texts on untimed essay (149 vs. 170; 186 vs 284 words). However, despite a relatively long period of time spent writing an essay, these students neither described their images nor detailed them in their essays. Although their mental imagery generated an explosion of ideas for their writings, most visual thinking must merely be a means toward an end-pictures that writers spent in purchasing the right words or ideas.

• 한국항만경제학회지
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• 제39권3호
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• pp.141-153
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• 2023

최근 갈등의 관리가 주요한 과제로 떠오르고 있다. 그 중 공공정책의 추진에 따라 발생하는 공공갈등은 사회적으로 부정적 효과를 가져올 수 있기 때문에 갈등을 효과적으로 잘 관리하는 것은 매우 중요하다. 이에 본 연구는 항만 관련 공공갈등의 특성을 면밀히 살펴봄으로써 항만과 관계된 공공정책의 원활한 추진을 위한 기반을 마련하고자 하였다. 본 연구는 항만 분야에서 발생한 갈등사례를 다양한 채널을 통해 수집하고 유형화를 실시하여 항만 관련 갈등의 특성을 보다 면밀히 살펴보고자 하였다는 점에서 의의를 지닌다. 본 연구의 결과를 요약하면 다음과 같다. 첫째, 본 연구는 주체별, 생애주기별, 쟁점별 특성을 고려하여 항만 관련 공공갈등을 유형화하였으며, 이를 통해 항만을 둘러싼 갈등은 다양한 쟁점을 지니고 있음을 확인하였다. 둘째, 지금까지 발생한 항만 관련 공공갈등은 강제력이 높은 방식으로 종결된 사례가 많다. 다만, 갈등 유형에 따라 합의로 종결되는 사례가 많은 경우도 있으므로 갈등발생시 조속한 종결유도를 위한 판단이 필요하다. 셋째, 항만 관련 공공갈등의 관리를 위해 사전예방, 사후대응의 이원적 체계를 마련할 필요가 있다.