• Journal of the Korean Society for Industrial and Applied Mathematics
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• v.24 no.4
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• pp.351-362
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• 2020

Adaptive behaviors are one of ubiquitous features in evolutionary dynamics of populations, and certain adaptive behaviors can be witnessed by individuals' movements which are generally affected by local environments. In this paper, by revisiting the previous work, we investigate the sensitivity of species coexistence in the system of cyclic competition where species movement can be affected by local environments. By measuring the extinction probability through Monte-Carlo simulations, we find the relativistic effect of weights of local fitness and exchange rate for adaptive movement on species biodiversity which promotes species coexistence as the relativistic effect is intensified. In addition, by means of basins of initial conditions, we also found that adaptive movement can also affect species biodiversity with respect to the choice of initial conditions. The strong adaptive movement can eventually lead the coexistence as a globally stable state in the spatially extended system regardless of mobility.

• Journal of the Korean Ceramic Society
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• v.46 no.4
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• pp.429-435
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• 2009

In this study, we investigated microstructure and the CO gas sensing properties of Ag-CuO-$SnO_2$ thin films prepared by co-evaporation and subsequently thermal oxidation at air atmosphere. The sensitivity of a Cu-Sn films, thermally oxidized at $600^{\circ}C$, is strongly affected by the amount of Cu. At Cu:7 wt%-Sn:93 wt%, the film exhibited a maximum sensitivity of ${\sim}2.3$ to CO gas of 1000 ppm at $300^{\circ}C$. In contrast, the sensitivity of a Sn-Ag film did not change significantly with the amount of Ag. An enhanced sensitivity of ${\sim}3.7$ was observed in the film with a composition of Ag:3 wt%-Cu:4 wt%-Sn:93 wt%, when thermally oxidized at $600^{\circ}C$. In addition, this thin film shows a response time of ${\sim}80$ sec and a recovery time of ${\sim}450$ sec to 1000 ppm CO gas. The results demonstrate that the CO sensitivity of the Ag-CuO-$SnO_2$ thin films may be closely associated with coexistence of $SnO_2$ and SnO phase, decrease in average particle size, and a porous microstructure. We also suggest that co-evaporation and followed by thermal oxidation is a very simple and effective method to prepare oxide gas sensor thin films.

• Journal of Communications and Networks
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• v.4 no.4
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• pp.282-291
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• 2002

3GPP (Third Generation Partnership Project) is defining UMTS (Universal Mobile Telecommunication System) releases which span the transition from GSM/UMTS coexistence to All-IP UMTS networks. The deployment of an UMTS network depends, in the first place, on the intended service offerings and the release an operator chooses to start service with. Other key decisions in-fluencing UMTS deployment relate to the timing of the functional enhancements and capacity increases along the economic life of the network. This paper gives an overview on the architectural and technical options for UMTS deployment. It also outlines the methodology underlying the business plan aimed at estimating the returns from investments in the UMTS infrastructure, thus helping to tune operators’ strategies for UMTS deployment.

• Journal of the Korean Society of Fashion and Beauty
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• v.6 no.1
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• pp.60-72
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• 2008

A midst the tendency in an attempt to rehabilitate the coexistence of values in Oriental and Western cultures, along with centripetal attention through reincarnation of the Oriental culture, the modem fashion trend is also inclusive of such Oriental flavors even in the opposite Western fashion icons with an outlook for futuristic alternative. In this regard the study is to investigate the Oriental Characteristics shown in the contemporary fashion in a more profound and right manner by evaluating its spirituality and formativeness through analytical survey on preliminary literatures, whose key words are as follows; Fist, heterogeneity inclusive of the Oriental comprehensiveness through non-periodic chaos; second, imperfection in pursue of perfection through non-perfection; third, asymmetry caused by polarized historicity together with agility in the Oriental costumes; fourth, simplicity bridging into religious naught, and; fifth, spatial comfortablity shrouded by loose design. As a result, the study demonstrates that Oriental sensitivity implicative at the modem fashion, prior to its formativeness, shed out a clue of the Oriental profound spirits in its fashion style.

• Journal of English Language & Literature
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• v.56 no.2
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• pp.277-299
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• 2010

This study explores Witi Ihimaera's The Whale Rider (1987) from ecological and postcolonial perspectives. Ihimaera is one of the prominent Maori writers who have critically voiced their concerns about the fragmentation of Maori tradition and the alienation of an environmentally friendly culture in New Zealand. Throughout the novel The Whale Rider, with his mythic imagination and cultural sensitivity, Ihimaera raises ecological awareness in terms of environmental justice and promotes critical consciousness regarding sociocultural and histo-political realities of the Maori people as alienated others in their ancestors' land. Revolving around the developmental process of a young Maori girl named after a mythical Maori ancestor Kahutia Te Rangi also known as the Whale Rider to inherit the Maori leadership, the novel describes the historical, cultural, emotional landscape of the Maori community in the white-centered society of New Zealand. In particular, this paper analyzes the leaving and homing process of narrator Rawiri which is deeply embedded in Maori myth and philosophy toward an eco-friendly culture and postcolonial reality. Indeed, Ihimaera skillfully juxtaposes young man Rawiri's experience outside the Maori community and young girl Kahu's life at the Maori home. In the end, while Kahu achieves her destiny in a mythical way to foster a new vision of harmonious co-existence that is rooted in Maori heritage and compatible with Western culture, Rawiri comes to understand the interrelatedness of all existence and embraces both the rational knowledge of scientific empiricism and the traditional knowledge of spiritual experiences. The novel The Whale Rider was also turned into a film by New Zealand's most influential female film director Niki Caro in 2002, and the film Whale Rider received international acclaim.

• Journal of Popular Narrative
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• v.25 no.2
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• pp.9-32
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• 2019

This paper tried to analyze the post-human phenomenon of our age with a focus on the 'emotional machine' motif. The post-humans of our time are closely linked to the creatures in very old storie. The post-human concept is based on the universal and intellectual imagination of humanity that is shared beyond humanities and technical civilizations, cultural and historical boundaries between East and West. This paper is about the creatures from mythical stories that have fascinated human beings, the mechanical humans who brought fear through the sophisticated mechanism of technology civilization era, the post humans. Through my process of looking at the post humans, I sought to clarify the conditions of the sensitivity and humanity of the age. In the process, we come to understand the vagueness of the boundaries between human beings, nature, and machines, and study the coexistence of humans, nature, and machines in the post-human era of the 21^st century, beyond the limitations of human-centered humanity.

• Journal of Information Technology Applications and Management
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• v.30 no.1
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• pp.33-52
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• 2023

This study observes the difference in the actual regional ripple effect of the decrease in admission resources due to the decrease in school age population, which has been weak in empirical studies, and how much the decrease in competition rate by department nationwide provides a significant shock to the decrease in enrollment rate in the population unit. An empirical quantitative analysis was attempted. As a result of applying the panel-tobit regression model, a clear gap was confirmed in the decrease in the registration rate due to the decrease in the competition rate both nationally and in the provinces, and in particular, a highly significant relationship was derived with the decrease in the recruitment rate. In particular, the sensitivity of the risk of unrecruitment due to a decrease in competition rate was the highest in the Jeolla region (0.499), followed by the Gangwon region (0.475) and the Gyeongsang region (0.471), and the metropolitan region (0.158) was confirmed to be the most stable. This suggests that the gap in insufficient funding has gradually widened by region over the past 10 years, and that the shock wave becomes more pronounced in the provinces farther away from the metropolitan area. Based on this study, if we deviate from the standardized application of university development policies for the metropolitan area and regional universities, and present a customized higher education strategy for each region, it will be an opportunity to prevent local extinction due to a decrease in the school-age population and achieve coexistence with higher education institutions and regions at the same time.

• Korean Journal of Childcare and Education
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• v.8 no.1
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• pp.85-107
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• 2012

The movie WALL-E shows the Earth which has been overrun with garbage and devoid of plant and animal life, and humans who try to restore the ecosystem. The aim of this study is to find the implications of children's education with a detailed analysis of the movie's theme. The analysis method is the interpretive analysis model that is one of the qualitative methods of data analysis based on the concept of Wolcott. First, the Earth is an abandoned planet covered in trash: the Axiom is a haven for morbidly obese and indolent people. The main area of the earth's destruction, and the captain's cabin is the place to find a clue to awakening and change. Second, with the lapse of time, the Axiom becomes a ship allowing their return to earth. The Earth, recognized as their homeland, turns in to the land of hope when people return. Third, the cleaning robot Wall-E, as a main agent of change, has changed humans as well as itself. The results showed that we found nature-friendly development, destruction of nature, the criticism of modern civilization, the sanctity of life, ecological consciousness, coexistence, symbiosis and a win-win principle in our research.

• Korean Journal of Agricultural and Forest Meteorology
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• v.12 no.2
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• pp.95-106
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• 2010

The performance of Community Land Model version 3.5 - Dynamic Global Vegetation Model (CLM-DGVM) was evaluated through a comparison with the observation over temperate deciduous forest in Gwangneung, Korea. Influence of plant phenology, composition of plant functional type, and climate variability on carbon exchanges was also examined through sensitivity test. To get equilibrium carbon storage, the model was run for 400 years driven by the observed atmospheric data at the deciduous forest of the year 2006. We run the model for 2006 with the equilibrium carbon storage at Gwangneung forest and compared the model output with the observation. A comparison of leaf area index (LAI) between the model and observation indicated that the simulated phenology poorly represented the timing of budburst, leaf-fall, and evolution of LAI. Senescence of the phenology was delayed about four weeks and the simulated maximum LAI (of 5.8 $m^2$ $m^{-2}$) was greater than the observed value (of 4.5 $m^2$ $m^{-2}$). The overestimated LAI contributed to overestimation of both gross primary productivity (GPP) and ecosystem respiration $(R_e)$ through increased photosynthesis and foliar autotropic respiration $(R_a)$, respectively. Despite the discrepancy between the simulated and observed LAI, the simulated tree carbon storage amounts were comparable with the reported values at the site. Change in plant phenology from the simulated to the observed reduced more than six weeks of the plant growth period, resulting in the decreased amount of GPP and $R_e$. These values, however, were still higher (~10% of GPP and 40% of $R_e$) than the observed values. The effect of change in plant functional type composition (from dominant temperate deciduous forest to the coexistence of temperate deciduous and needle leaf forests) on the estimated amount of GPP and $R_e$ was marginal. The influence of climate variability on carbon storage amounts was not significant. The simulated inter-annual variation of GPP and $R_e$ from 1994 to 2003 depended on annual mean air temperature and total radiation but not on precipitation. Other deficiencies of CLM3.5-DGVM have been discussed.