• Asian Journal of Atmospheric Environment
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• v.12 no.3
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• pp.255-273
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• 2018

To develop effective emission abatement strategies for eighteen coal-fired power plants located throughout Korea, power plant emission data and TAPM (The Air Pollution Model) were used to quantify the impact of emission reductions on primary $PM_{10}$ concentrations. TAPM was validated for two separate time periods: a high $PM_{10}$ concentration period from April 7 to 12, 2016, and a low $PM_{10}$ concentration period from June 1 to June 6 2016. The validated model was then used to analyze the impacts of five applicable power plant shut-down scenarios. The results showed that shut-down of four power plants located within the Seoul metropolitan area (SMA) would result in up to 18.9% reduction in maximum $PM_{10}$ concentrations, depending on synoptic conditions. A scenario for the shutdown of a single low stack height with highest-emission power plant located nearest to Seoul showed a small impact on averaged $PM_{10}$ concentrations (~1%) and 4.4% ($0.54{\mu}g/m^3$) decrease in maximum concentration. The scenario for four shutdowns for power plants aged more than 30 years within SMA also showed a highest improvement of 6.4% ($0.26{\mu}g/m^3$ in April) in averaged $PM_{10}$ concentrations, and of 18.9% ($2.33{\mu}g/m^3$ in June) in maximum concentration, showing almost linear relationship in and around SMA. Reducing gaseous air pollutant emissions was also found to be significant in controlling high $PM_{10}$ concentrations, indicating the effectiveness of coreduction of power plant emissions together with diesel vehicle emissions in the SMA. In addition, this study is implying that secondary production process generating $PM_{10}$ pollution may be a significant process throughout most regions in Korea, and therefore concurrent abatement of both gas and particle emissions will result in more pronounced improvements in air quality over the urban cities in South Korea.

• Cross-Cultural Studies
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• v.43
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• pp.115-138
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• 2016

The Milk of Sorrow (La teta asustada) (2009) is a Peruvian-Spanish film by a young, female Peruvian director, Claudia Llosa (1976 - ). By applying the theories that feminist and subaltern scholar Gayatri Chakravorty Spivak presents in "Feminism and Critical Theory", the present work questions the ironic term, "Feminism in the Third World" by considering the Latin American context. Would the term refer to the feminism of Native Indian women or white creole women? The present work raises this question via Llosa's The Milk of Sorrow, in which a white creole woman, Aída, takes advantage of a quechua woman, Fausta. Through analysis of this film, this work demonstrates that in the Latin American context, even in a single country, there should be various types of feminism, since what Native Indian women fight against is different from what white creole women fight against. Thus, it insists that feminism in the Third World should develop in a deconstructionist manner, in which each woman has the ability to interpret her own social and political stance. Furthermore, it can be said that cultural appropriation is taking place in the "real" world as well as on the screen: a white creole director, Llosa, is taking advantage of a hot-button issue in our postmodern era, the violation of the human rights of minorities, especially those of Latin American Native Indian women, since Llosa became a success and won many prizes in international film festivals for her work.

• Child Studies in Asia-Pacific Contexts
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• v.2 no.1
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• pp.61-75
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• 2012

Indisputably school is the main institution that socialises migrant children into the culture of their new country. Through school they learn the new language and customs, which will enable them to become cultural brokers between the new cultural world and their families. During this process migrant children often transit a liminal terrain where their roles and identity become at the same time diverse and ambivalent. Despite the challenges involved these children often become experts in juggling different cultures, environments and expectations. This study explores the experiences of Latin American children and their families as they start primary school in Australia.

• The Korean Publising Journal, Monthly
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• s.335
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• pp.144-144
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• 2003

• Journal of the Earthquake Engineering Society of Korea
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• v.19 no.6
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• pp.293-302
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• 2015

ASCE 4 requires that a hard stop be built around the seismic isolation system in nuclear power plants. In order to maintain the function of the isolation system, this hard stop is required to have clearance-to-stop, which should be no less than the 90th-percentile displacements for 150% Design Basis Earthquake (DBE) shaking. Huang et al. calculated clearance-to-stop by using a Latin Hypercube Sampling technique, without considering the rocking behavior of the isolated structure. This paper investigates the effects on estimation of clearance-to-stop due to 1) rocking behavior of the isolated structure and 2) sampling technique for considering the uncertainties of isolation system. This paper explains the simplified analysis model to consider the rocking behavior of the isolated structure, and the input earthquakes recorded at Diablo Canyon in the western United States. In order to more accurately approximate the distribution tail of the horizontal displacement in the isolated structure, a modified Latin Hypercube Sampling technique is proposed, and then this technique was applied to consider the uncertainty of the isolation system. Through the use of this technique, it was found that rocking behavior has no significant effect on horizontal displacement (and thus clearance-to-stop) of the isolated structure, and the modified Latin Hypercube Sampling technique more accurately approximates the distribution tail of the horizontal displacement than the existing Latin Hypercube Sampling technique.

• Journal of the Korean Society of Costume
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• v.60 no.7
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• pp.103-116
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• 2010

Recently, the art of the Latin America Culture is being actively introduced into our country. Many concepts in the fashion field contain Latin American culture and their influence is growing. This present study, based on a correct understanding of and research on Latin American culture, is an attempt to expand the expression of fashion design and explore the use of works of art in fashion. The case study is on Frida Kahlo (1907~1954), who was a Mexican woman painter who gives us some inspiration in contemporary fashion design. The scope of this case study investigates the Haute couture and the Pr$\hat{e}$t-$\grave{a}$-porter women's wear collections and photos from 1998 to 2009 which were greatly influenced by Frida Kahlo and analyzes through the formative elements of dress, color, form, pattern and material. Frida Kahlo was a painter whose composition of surrealism held the world of life and death, pain and pleasure, love and parting, thought and freedom, and tradition and modern, etc. As a design inspiration, her influence reaches into accessories, and hairstyles, as well as the Pr$\hat{e}$t-$\grave{a}$-porter. This current study for the correct understanding of the new culture and the introduction of art into the fashion design might be helpful in making fashion a work of art and in extending the expression of the fashion design concept which is based on commercial art.

• Advances in aircraft and spacecraft science
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• v.6 no.6
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• pp.529-550
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• 2019

The effect of multiple process parameters on a set of continuous response variables is, especially in experimental designs, difficult and intricate to determine. Due to the complexity in aeroacoustic and vibroacoustic studies, the often-performed simple one-factor-at-a-time method turns out to be the least effective approach. In contrast, the statistical Design of Experiments is a technique used with the objective to maximize the obtained information while keeping the experimental effort at a minimum. The presented work aims at giving insights on Design of Experiments applied to aeroacoustic and vibroacoustic problems while comparing different experimental designs and approximation models. For this purpose, an experimental rig of a ducted low-pressure fan is developed that allows gathering data of both, aerodynamic and aeroacoustic nature while analysing three independent process parameters. The experimental designs used to sample the design space are a Central Composite design and a Box-Behnken design, both used to model a response surface regression, and Latin Hypercube sampling to model an Artificial Neural network. The results indicate that Latin Hypercube sampling extracts information that is more diverse and, in combination with an Artificial Neural network, outperforms the quadratic response surface regressions. It is shown that the Latin Hypercube sampling, initially developed for computer-aided experiments, can also be used as an experimental design. To further increase the benefit of the presented approach, spectral information of every experimental test point is extracted and Artificial Neural networks are chosen for modelling the spectral information since they show to be the most universal approximators.

• Journal of the Korean Society of Costume
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• v.61 no.6
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• pp.113-130
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• 2011

Post-Modern Multiculturalism is spreading in many ways and other cultural interest has led to the Latin American culture, which has steadily appeared as the main fashion concept of the international collection. Frida Kahlo(1907-1954), a representative of Latin American culture and a Mexican female surrealistic painter, who gives us some inspiration for contemporary fashion design. The purpose of this study is to have a correct understanding of and research on Latin American culture and to expand the expression of fashion design. In the process, this article examines the costume of Mexico belong to the Indio culture which had been regarded as the Other for a long time and understands Frida Kahlo's fashion style: Tehuanas costume and her masculine style. The Tehuanas costume is a traditional style of the city, Tehuantepec, located in the southeast of Mexico, which is characterized by colorful floral patterns and a long skirt. Three fashion concepts were derived from her fashion style: tradition & modern, love & farewell, and masculine & feminine. The scope of this study investigates the Haute Couture and the Pret-a-porter women's wear collections and photos from 1998 to 2010 in Europe, USA and South America. From classifying the collected photos into each concept, three styles such as ethnic, romantic and androgynous style were derived. These fashion styles were analyzed through the formative elements of dress, color, silhouette, pattern, material and clothing construction in order to figure out how costumes of other cultures influenced on contemporary fashion. As a design inspiration, Frida Kahlo extends her influence into innerwear, accessories and hairstyles, as well as women's wear. These inspirations emerge steadily from the past and far into the future as an expression of a fashion design concept.

• International Journal of Fluid Machinery and Systems
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• v.10 no.3
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• pp.240-253
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• 2017

Latin hypercube sampling is widely used design-of-experiment technique to select design points for simulation which are then used to construct a surrogate model. The exploration/exploitation properties of surrogate models depend on the size and distribution of design points in the chosen design space. The present study aimed at evaluating the performance characteristics of various surrogate models depending on the Latin hypercube sampling (LHS) procedure (sample size and spatial distribution) for a diverse set of optimization problems. The analysis was carried out for two types of problems: (1) thermal-fluid design problems (optimizations of convergent-divergent micromixer coupled with pulsatile flow and boot-shaped ribs), and (2) analytical test functions (six-hump camel back, Branin-Hoo, Hartman 3, and Hartman 6 functions). The three surrogate models, namely, response surface approximation, Kriging, and radial basis neural networks were tested. The important findings are illustrated using Box-plots. The surrogate models were analyzed in terms of global exploration (accuracy over the domain space) and local exploitation (ease of finding the global optimum point). Radial basis neural networks showed the best overall performance in global exploration characteristics as well as tendency to find the approximate optimal solution for the majority of tested problems. To build a surrogate model, it is recommended to use an initial sample size equal to 15 times the number of design variables. The study will provide useful guidelines on the effect of initial sample size and distribution on surrogate construction and subsequent optimization using LHS sampling plan.

• Journal of the Korean Data and Information Science Society
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• v.23 no.4
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• pp.683-691
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• 2012

In $4{\times}4$ graeco-latin square design, powers of rank transformed statistic for testing the main effect are superior to powers of parametric statistic without regard to the effect structure with equally or unequally spaced effect levels as well as the type of population distributions such as exponential, double exponential, normal and uniform distribution. As numbers of block effect or effect sizes are decreased, powers of rank transformed statistic are much higher than powers of parametric statistic. In case that block effects are smaller than a main effect or one block effect is higher than other block effects, powers of rank transformed statistic are much higher than powers of parametric statistic in $4{\times}4$ graeco-latin square design with three block effects and one main effect.