• 복식
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• 제61권8호
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• pp.100-113
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• 2011

The earlier notion of feminism regarding gender equality was changed into that of Postfeminism because of gender differences. The idea of Postfeminism has been present since the 1980s but has been influenced by modern culture theories such as Postmodernism, Poststructuralism, Theory of Power and Discourse and Psychoanalysis. Various features of Postfeminism are found in the medieval warrior images of contemporary fashion. Warrior costumes were men's exclusive property in the medieval ages, but as it is introduced as women's wear in the 21st century, it shows us new fashion images which are constructed by gender deconstruction, differences and pastiche. In this regard, the purpose of this study is to examine a key characteristic of Postfeminism fashion. An article described the historical costumes of medieval warriors and refocused on the development processes of feminism and then conducted an analysis on formative characteristics and Postfeminism tendencies in contemporary women's wear from 2000 to 2011. The results were that materials such as metallic and flexible materials, monotonic and red colors and detailed patterns of armor were used to display forms of exaggeration and restraint. These elements fully and correctly expressed the image of a medieval warrior woman in contemporary fashion. Postfeminism fashion is constructed with feminine power, gendered identity, sensual elegance and a postmodern body. Postfeminism is the contemporary cultural icon and is continuously influencing modern fashion design in the 21st century in a positive and powerful way.

• 한국의류산업학회지
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• 제10권3호
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• pp.364-370
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• 2008

This research aims to recognize necessity of modern expression of traditional pattern, understand the matter which is expressed when developing design using traditional pattern, and find the solutions. As the solutions, this research presents design of traditional pattern using symmetry concept and works on the possibility of symmetry as the pattern design. So this research carried out in-depth interview to textile designer working at Gyeongsangnam-do, analyzed the substances. The main results are as follows. First, the presented problems of developing common pattern design and designing using traditional pattern show the necessities for adequate harmony among conception of creative idea, traditional pattern and present pattern. As the solution, the efficient design principles are required. Second, the seven traditional figures can present design applying symmetry, also draw the 8 mapping models for the visuality and utilization. Third, the symmetry-applied traditional pattern design makes it possible for the traditional figure to be represented with the creative and modern sense and provides easier way to the design development by complementing the pattern design formation. As the result, symmetry-utilized traditional pattern design improvement shows the expectation that it will increase the design development ability and ease the figure drawing. In addition, the pattern development which can be applied to any figure presents the time efficiency as well as possibility of the high added value textile industry.

• 패션비즈니스
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• 제8권6호
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• pp.39-56
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• 2004

At the outset, surrealism starts from pure art, but surrealism has greatly influenced commercial art and fashion circles, more so than any other genre of art. The critical thinking methods of surrealism and its mode of expression continues to influence fashion theory extensively. Even now, surrealism may be found in the designs presented in fashion circles and is still expected for future lines. Surrealism in modern fashion has been reborn, newly integrated and transformed, based on the features of Surrealism paintings. The characteristics of its forms can be found in a combination of modern material, modern design and new skills and the classical items : bodyform molding context of architecture, experimental and sex-appealing of body. Expression was made by borrowing natural motives and recreating natural fabrics while the existing typical idea about clothes was destructed, with the boundary of patterns changed. Expression was also made by mixing items, uniting future images, and using up-to-date functional techniques. This study is significant that up-to-date technological culture expands cyber-space and increases surrealistic expressions by combined heterogeneous materials, thus arousing much interest. The purpose of this study is to determine interrelationship between how surrealism developed and what formative properties those clothes affected by surrealism obtained in the 1990s.

• Journal of electromagnetic engineering and science
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• 제16권2호
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• pp.134-142
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• 2016

This paper proposes a technique for improving the conventional conical horn antenna for the X-band frequency using metamaterial on a wire medium structure. The main idea of this research is the application of the wire medium metamaterial to the conical horn's aperture for the enhancement of the horn's gain; this is done without changing the antenna's dimensions. The results show that the wire medium structure can increase the gain of a conventional conical horn antenna from approximately 17.7 dB to 20.9 dB (an increase of approximately 3.2 dB). A prototype antenna was fabricated, and its fundamental parameters including its reflection coefficient ($S_{11}$), radiation patterns, and directive gain were measured. The simulated and measured results were very good. The wire medium structure of the proposed antenna improved the radiation pattern, enhanced the directivity, increased the gain, and reduced the side lobe level using a simple integrated wire medium structure.

• 전기전자학회논문지
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• 제23권1호
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• pp.68-73
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• 2019

벅 컨버터는 전압 직류 계통(LVDC), 가전 분야 및 전기차 충방전 분야에서 다양하게 적용되고 있는 전력변환장치이며, 일반적으로 벅 컨버터는 부하측에 단락 등 고장 발생시 반도체 스위칭 소자를 개방시켜 벅 컨버터의 운전을 중지시킨다. 그러나 벅 컨버터의 출력단에 인덕터와 캐패시터에 저장된 에너지로 인해 고장 전류가 지속적으로 부하로 전달되는 문제점을 가지고 있다. 본 논문에서는 벅 컨버터의 출력측 저역통과 필터에 일반적인 인덕터 대신 커플드 인덕터(Coupled-inductor)를 사용하여 인덕터에 저장된 전기에너지를 부하단에 공급되지 않도록 소모시키는 구성을 포함하는 벅 컨버터의 새로운 고장전류 고속차단 방식을 제안하며, 제안된 방식은 시뮬레이션을 통해 성능을 검증하였다.

• 한국지형학회지
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• 제24권1호
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• pp.63-76
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• 2017

This research was classified mountain areas with high ecological, environmental and resource value among the macro scaled terrain that can be checked at the space scale of less than 1:1,000,000 and analyzed the topographical characteristics. It has been confirmed that the mountains of the Korean peninsula belong to the groups IV, V, VI(classification by Kapos et al.(2000)) as a result of applying the quantitative standards for designation of mountain areas to the global mountain system. The area of mountains calculated using high resolution DEM is equivalent to 48% of the area of the Korean peninsula, and the result is quite different from the general idea of which 70% is the mountain area of the Korean peninsula. The mountain areas show the distribution of geomorphons, that is different from the plains and the hills and also, it shows the differences between the mountains of the groups IV~ VI classified according to the altitude. As a result of analyzing the relations among type pattern, slope, and relief, specific geomorphons are concentrated at $10^{\circ}$ and $20^{\circ}$ and it shows the possibility to classify the mountainous areas into two groups based on the result that the distribution of landform patterns are bimodal in the relation to the amount of relief.

• Geomechanics and Engineering
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• 제30권2호
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• pp.107-121
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• 2022

Coal pillar assessment is of broad importance to underground engineering structure, as the pillar failure can lead to enormous disasters. Because of the highly non-linear correlation between the pillar failure and its influential attributes, conventional forecasting techniques cannot generate accurate outcomes. To approximate the complex behavior of coal pillar, this paper elucidates a new idea to forecast the underground coal pillar stability using combined unsupervised-supervised learning. In order to build a database of the study, a total of 90 patterns of pillar cases were collected from authentic engineering structures. A state-of-the art feature depletion method, t-distribution symmetric neighbor embedding (t-SNE) has been employed to reduce significance of actual data features. Consequently, an unsupervised machine learning technique K-mean clustering was followed to reassign the t-SNE dimensionality reduced data in order to compute the relative class of coal pillar cases. Following that, the reassign dataset was divided into two parts: 70 percent for training dataset and 30 percent for testing dataset, respectively. The accuracy of the predicted data was then examined using support vector classifier (SVC) model performance measures such as precision, recall, and f₁-score. As a result, the proposed model can be employed for properly predicting the pillar failure class in a variety of underground rock engineering projects.

• 한국컴퓨터정보학회논문지
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• 제20권2호
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• pp.29-45
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• 2015

생물의 진화패턴과 원리는 지난 200년간 학문적인 영역에서 활발히 연구되어 왔으며 생명의 진화에 대한 체계적인 이론, 개념 및 방법론이 제시되었다. 그리고 진화경제학, 진화심리학, 진화언어학 등 다양한 분야에 적용되어 큰 연구 성과를 거두고 있다. 이와 더불어 진화생물학 논리를 인간이 만든 제품에 적용하려는 시도도 병행되어 왔다. 기존 연구들이 생물진화 논리를 인공물에 그대로 적용하거나 해당 분야 전문가의 직관에 근거하여 진화 모형을 구축하는 것이어서 진화 모형에 대한 일반화를 시키기에는 한계를 가진다. 또한 생물과 달리 인공물은 인간 의지의 상상력이 반영되기 때문에 생물진화 이론을 곧바로 적용할 수 없다고 알려져 왔다. 따라서 본 논문에서는 특정인의 주관에 벗어나 일반 대중들의 생각을 엿보고 이를 바탕으로 진화 모형을 구축하는 것을 목표로 한다. 이를 위해, 인공물을 계통적으로 분류할 수 있는 체계적인 틀을 제시하는 텍스트 마이닝 방안과 그 결과물을 효과적으로 보여줄 수 있는 시각화 방안을 차례로 제안한다. 특히, 제안방안을 바탕으로 최근 혁신의 아이콘으로 떠오르고 있는 휴대폰과 스마트폰에 대한 사례 연구를 집중적으로 수행한다. 지난 10년간 국내에서 출시된 휴대폰과 스마트폰에 대한 리뷰 포스트들을 수집하고 분석하여, 진화패턴을 발견하고 요약해서 보여주며 그 결과에 대해서 자세히 토의한다. 더욱이 이러한 작업은 소수의 전문가들이 방대한 문헌과 자료를 조사 정리하여, 오랜 시간에 걸쳐 진화계통도를 그리게 되는 매우 지난한 작업이다. 하지만 본 논문에서 제안한 방안은 반자동(semi-automatic) 마이닝 알고리즘으로 인간의 노력을 최소화할 수 있어 그 효용 가치가 높다. 이러한 연구를 통해 인간의 창의력과 상상력이 구현되는 방식을 이해하고 휴대폰의 미래 모습을 전망하는데 있어 유관기업들에게 큰 도움을 줄 것이다.

• 디자인학연구
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• 제11권2호
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• pp.203-213
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• 1998

다가오는 21세기는 정보와 문화가 지배하는 시대이다. 인간의 삶의 질은 문화의 수준에 의해 좌우된다. 이러한 시대에는 한 나라의 독창적인 문화와 문학적 수준이 그 나라의 모든 것을 대변하게 될 것이며 문화의 총체적인 결과물이라고 할 수 있는 국가 이미지는 막대한 영향력을 행사하게 된다. 이같은 문화주의 시대의 도래는 근대문화의 합리성과 전통문화의 개념을 어떻게 실질적으로 조화시켜 후기산업사회를 맞이해야 할것인가라는 중요한 과제를 던져주고 있다. 이른바 문화의 산업화와 산업의 문화화는 국경없는 국가 경쟁시대에 무엇보다 중요한 생존 전략이 될것이며 한 나라의 독특한 문화가 배어있는 문화상품은 그 나라의 이미지 선양은 물론 고부가가치 산업으로 부상할 수 있다. 일반상품이 편의성, 실용성을 우선 조건으로 개발된다면 문화상품은 문화와 기술 창조력의 척도가 되는 것으로 한 나라나 한 지역을 국제 사회에 인식시키는 실체가 된다. 이러한 국제시장 질서와 문화환경 변화에 대응하기 위해서는 독특한 문화유산을 바탕으로 하여 현대적 기호와 감각에 적합한 디자인을 개발하고 이를 상품화하여 국제경쟁력을 강화해 나갈 방안이 절실하다. 하나의 상품이 탄생하여 시장에 유통되고 최종 수요자에게 도달하기 위해서는 상품의 개발과 유통·판매라는 여러 복합과정에 대한 이해와 각 분야의 시스템화가 필수적이며 또한 어떠한 영역도 소홀할 수는 없겠지만, 본 고에서는 이에 대한 정책·제도적 대안이나 유통과 마케팅적 관심은 논외로 한다. 본 고는 한국적 문화이미지로서 전통문양이 차지하는 비중과 이것이 문화상품이라는 형태로 구체화되는-전통문양이 상품에 효과적으로 활용될 수 있는 상품디자인·개발 과정을 제시하는 것이다. 따라서 이를 바탕으로 한 제도적 장치와 구체적 활성화 방안이 후속적으로 전개되길 기대한다.

• Journal of Korea Trade
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• 제27권1호
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• pp.139-158
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• 2023

Purpose - The study of co-movements between stock markets is a crucial area of finance and has recently received much interest in a variety of studies, especially in international finance. Stock market co-movements are a major phenomenon in financial markets, but they are not necessarily independent of the real market. Several studies support the idea that bilateral trade linkages significantly impact stock market correlations. Motivated by this perspective, this study investigates whether real market integration due to trade agreements brings about financial market integration in terms of stock market co-movement. Design/methodology - Over the 10 free trade agreements (FTAs) signed by the United States, using a dynamic conditional correlations (DCC) multivariate GARCH (MGRACH) model, we empirically measure the degree of integration by finding DCCs between the US market and the partner country's market. We then track how these correlations evolve over time and compare the results before and after trade agreements. Findings - According to the empirical results, there are positive return spillover effects from the US market to eight counterpart equity markets, except Jordan, Morocco, and Singapore. Especially Mexico, Canada, and Chile have large return spillover effects at the 1% significance level. All partner countries of FTAs generally have positive correlations with the US over the entire period, but the size and variance are somewhat different by country. Meanwhile, not all countries that signed trade agreements with the United States showed the same pattern of stock market co-movement after the agreement. Korea, Mexico, Chile, Colombia, Peru, and Singapore show increasing DCC patterns after trade agreements with the US. However, Canada, Australia, Bahrain, Jordan, and Morocco do not show different patterns before and after trade agreements in DCCs. These countries generally have the characteristic of relatively lower or higher co-movements in stock markets with the US before the signing of the FTAs. Originality/value - To our knowledge, few studies have directly examined the linkages between trade agreements and stock markets. Our approach is novel as it considers the problem of conditional heteroscedasticity and visualizes the change of correlations with time variations. Moreover, analyzing several trade agreements based on the United States enables the results of cross-country pairs to be compared. Hence, this study provides information on the degree of stock market integration with countries with which the United States has trade agreements, while simultaneously allowing us to track whether there have been changes in stock market integration patterns before and after trade agreements.