• Journal of English Language & Literature
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• v.56 no.2
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• pp.383-408
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• 2010

This paper intends to suggest the positive, ecological vision of sustainability in Karen Hesse's Out of the Dust that Billie Jo Kelby recovers herself through her readjustment of interior consciousness and outer environment in her tragic situations caused by the Dust Bowl. In spite of her desires for happiness and affluence of home, she loses her mother and brother, and her musical talent as a pianist, and lies in self-abandonment. But she finally raises up herself with her courage and patience, reconciliating with the nature and ameliorating the community by taking care of the devastated landscapes. Hence it is appropriate to approach the loss-recovery process of nature and consciousness with ecological solutions, The Dust Bowl breaks down human mind and body, and eventually leads to the situations of despairs and death. Hesse proposes the primary solution that humans should reconstruct their interior consciousness and participate in recovering the nature because humans are inevitably linked with nature. In this novel, the nature takes a dynamic and active role as a catalyst, reconciling the self with other humans and settling with the conflicting situations in history and culture. This verse novel as an active, self-ordering, and corrective process gives the more intense ecological message. As Hesse defines the setting of Dirty Thirties as a channel of energy, she creates the utmost effects of ecological process that human and environment are part of a total situation, representing the transactional formulation, each conditioned by conditioning to the other. Therefore Billie Jo takes her part as an interpreter and actualizes herself, understanding the nature with metaphor and symbol. Eventually Billie Jo realizes that she should rebuild her environment not out of the dust but in the dust, accepting the reality of Dust Bowl.

• Journal of the Korea Institute of Military Science and Technology
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• v.20 no.5
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• pp.647-653
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• 2017

In this paper, we deal with the experimental verification of 1D virtual force field algorithm based reflexive local path planning on uneven and dusty environment. The existing obstacle detection method on uneven and dusty environment and 1D virtual force field based reflexive local path planning algorithm simply are introduced. Although the 1D virtual force field algorithm is verified by various simulations, additional efforts are needed to verify this algorithm in the real-world. The introduced methods are combined with each other, installed to real mobile platforms and verified by various real experiments.

• Journal of the Korean Society of Safety
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• v.17 no.3
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• pp.112-117
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• 2002

A comparative investigation of an experimental and a simulation of chemical kinetics for NOx removal from silent(dielectric-barrier) discharges is presented. Several types of dielectric-barrier discharges were implemented depending upon the configuration of electrodes. The simulation was based on an approximate mathematical model for plasma cleaning of waste gas. The influence of non-uniform distributions of species due to the production of primary active particles in the streamer channel was taken into account. A comparison of observed experimental to the calculated removal efficiency of NOx showed acceptable agreement.

• Journal of Advanced Marine Engineering and Technology
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• v.18 no.2
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• pp.33-40
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• 1994

알루미늄 코팅막은 부식환경으로부터 강판을 보호하는 데에 자주 사용된다. 그러나 이 코팅막은 때때로 사용조건에 따라 제한을 받는다. 아무리 강판상에 치밀한 양질막을 코팅시켰다 할지라도, 사용중 이 피막이 손상을 받아서 강판이 노출되는 경우는 강판과의 갈바닉(Galvanic)작용으로 급격한 부식을 일으킨다. 본 연구는 내식성 개선을 목적으로 해서, 고밀착성의 코팅막을 제공하는 비평형프라즈마 프로세스인 이온프레이팅법에 의해 냉간압연강판상에 Al-Mg합금 코팅막을 제작했다. 제작된 막들은 우선, EMPA측정에 의해 원소조성분석을 한 후, 상구조분석 및 표.단면의 몰포로지(Molphology)를 X선 회절 및 주사형 전자현미경(SEM)에 의해 관찰했다. 또한, 이들막은 탈기시킨 3%NaCl용액중 양극분극 측정을 통해서 내식특성에 대한 평가를 행했다. 이들의 결과에 의하면, 알루미늄과 마그네슘의 조성비에 따라 주상, 미결정 및 아몰포스(Amorphous)조직을 보이는 금속간화합물이나 고용체의 Al-Mg박막이 나타났다. 이들 Al-Mg합금 코팅막은 강판과의 갈바닉 부식작용에 대한 방지 및 부동태 피막의 형성을 촉진하는 등의 좋은 내식성을 나타냈다.

• Journal of the Korean Institute of Landscape Architecture
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• v.44 no.2
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• pp.108-121
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• 2016

The purpose of this study is to explore the issues and implications for landscape design education in Korean landscape architecture by analyzing the National Exhibition of Korean Landscape Architecture(NEKLA). This study analyzed the suggested topics and selected site as well as the commentary that appeared in the NEKLA's award-winning book published from 2004 to 2014. Results of the study are as follows: First, topics of NEKLA are not only competition guidelines but related to exploring new area and role of Korean landscape architecture. Second, most dealing with site is 'industrial heritage and regeneration space' and 'green infrastructure'. In more recent years, a larger variety of sites were addressed. Third, site locations are concentrated in metropolitan areas, and awards and participation of the non-metropolitan universities was very low. Fourth, seven criteria can be applied in a general landscape design competition such as 'newness of the concept(idea)', 'logicality of the design process', 'selection of site fidelity of analysis(interpretation)', 'presentation and completion of the master plan', 'consistency with the theme', 'linkage of concepts and results' and 'feasibility'. The evaluation criteria are increasing the sophistication of the design language to provide useful suggestions on how to find design education methods. Its implications are as follows: First, training is essential to derive innovative ideas, but it should avoid excessive concept-oriented education. Second, design education may include instruction on how to define the problems related with the site. Third, more emphasis on design logic is essential to transform the innovative concept to actual results. Fourth, 'slick images' unrelated to design should be suppressed. Fifth, practice is needed to solve the topics addressed in the design process of education. Sixth, 'feasibility' and 'creative thinking' are necessary to recognize a reciprocal relationship that is helpful to one another. This study uses direct quote commentary to minimize the subjectivity of the researcher and to trace issues of the contemporary landscape architecture more directly and vividly. This study is a record waiting for another review as meta-criticism. In this regard this study, the landscape architect of the next times will have a mean that historical records to review the current thinking of the landscape theory and design.

• Journal of Korean Society of Environmental Engineers
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• v.27 no.10
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• pp.1090-1098
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• 2005

Benzoyl peroxide is very toxic to aquatic organisms but environmental concentration or exposure effects were not studied. Distribution of the chemical among multimedia environment was estimated using EQC(Equilibrium Criterion) model based on the physical-chemical properties to evaluate the risk of benzoyl peroxide in environment. Level I describes a situation that 100,000 kg of benzoyl peroxide is emitted into the environment which is equilibrium and steady-state without degradation and advection condition. Level II describes a situation that a constant rate of 1,000kg/h of benzoyl peroxide is continuously discharged into the environment which is equilibrium and steady-state with degradation and advection condition. Level III describes a situation that 1,000 kg/h of benzoyl peroxide is continuously introduced in each air, water, soil, and sediment compartment which are non-equilibrium and steady-state with degradation, advection, and inter-media transfer condition. In Level I and II calculations the chemical was distributed to soil(68.3%) and water(28.7%). In Level III calculation it was primarily distributed to soil(99.9%) and overall residence time was estimated to be 3.4 years. Benzoyl peroxide can be persistent in environment.

• 한국HCI학회:학술대회논문집
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• 2008.02a
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• pp.534-539
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• 2008

This paper is about intelligent hexapod robot for the support walking of the aged person. The robot using various sensors and small camera has various abilities of forward backward walking, turing left or right, control the speed of walking, avoiding the obstacles and detecting risky situation of fire or gas. To let the aged feel soft and safe walking, we used special servo motor and developed hexapod walking mechanism and effective algorithm.

• Journal of The Korean Association of Information Education
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• v.20 no.4
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• pp.409-420
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• 2016

In the digital age, children can express their ideas in both physical and digital environments. Electronic textile or e-textiles with Lilypad Arduino provides children with opportunities to explore design ideas and to realize their imagination into physical artefacts. This study aims to analyze the nature of activities and perceptions among 16 children in fifth and sixth grade in a primary school in Seoul who participated in the 12-week e-textile project. To this end, two teachers who taught the class evaluated student-created artefacts from technical, critical, creative and ethical perspectives, and interviewed seven students to extract concrete experiences. The contribution of this study is that it offers a case study of how e-textile programs integrating arts and technology can be implemented in primary school settings and provides implications for future research directions.

• Economic and Environmental Geology
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• v.18 no.3
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• pp.239-246
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• 1985

Uranium-thorium separation technique from shallow sediment and ${\alpha}$-source electrodeposition technique are established in the present work, and uranium series disequilibrium dating method is applied to the quaternary piston core from Sangback-do, South Sea of Korean Peninsula. The age of the piston core (depth 200~300cm) sampled from Latitude $34^{\circ}06^{\prime}37^{{\prime}{\prime}}$, Longitude $127^{\circ}37^{\prime}37^{{\prime}{\prime}}$ was determined as ranging from $9.0{\pm}2.2$ to $22.9{\pm}3.3$ Ky B.P, i.e., Later Pleistocene, older than Holocene which was stratigraphically known in the previous study. The sedimentation rate in the area is regularly increased according to the depth of the sedimentation layer. Except a few split sections of the piston core the sedimentation rates are avarage 7.2cm/1,000 years. Where sedimentation layer is deeper, then sedimentation rate tend to be slower. It must be pointed in age calculation that initial $^{230}Th/^{234}U$ radioactivity ratio is much influenced when detrital material was introduced in the sample. The $^{230}Th/^{234}U$ activity ratio measured in the present work is 0.06 at $^{232}Th=0$, and this value shows higher analytical errors because of the low· radioactivity of $^{230}Th$ in the samples.

• Journal of the Korean association of regional geographers
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• v.16 no.1
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• pp.76-84
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• 2010

This study is to critically examine a variety of perspectives of seeing the interactions among space, people, and society. According to Tuan, place is a center of meaning constructed by people's experience, and its attributes consist of natural and built-up environments. Entrikin suggests a way of seeing place from a contrary perspective, that is, the subjective and existential sense of place and the objective and naturalistic conception of place. Lefebvre examines the historical transformation of social space through the dialectics among the perceived space, the conceived space, and the lived space. Social space is (re)produced and changed through the conflictual unit of the spatial triad. The project of Foucault's spatial metaphor is to tightly combine three critical concepts, power, knowledge, and space. Those concepts are not objectively existed regardless of specific times and spaces, but they are socially and culturally constructed through the networks of people under particular environments. In the following papers, it is needed to comparatively examine the various perspectives mentioned above to make a new conceptual framework of understanding the interactions among space, people, and society.