• Journal of The Korean Association For Science Education
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• v.32 no.3
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• pp.415-427
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• 2012

In this study, we conducted preliminary survey, diagnostic test and in-depth interview in order to study Korean pre-service chemistry teachers' understanding on entropy and investigate how Korean pre-service chemistry teachers deal with the natural phenomenon which is related to entropy conceptions. Firstly, as a result of the preliminary survey, it was found that pre-service chemistry teachers strongly recognized entropy as the degree of disorder. Secondly, the diagnostic test showed pre-service chemistry teachers were mostly confused about whether the entropy of the universe increases during a spontaneous change, and they had a tendency to interpret the natural phenomenon related to entropy change as the change of disorder. Finally, during in-depth interview, after we explained entropy change in all diagnostic test questions with the concept of microstate, pre-service chemistry teachers revealed a better understanding about entropy. Through this research, pre-service chemistry teachers had an opportunity to reflect on their deficiencies of entropy conceptions, which will ultimately help students to approach the concept of entropy more correctly.

• Korean Institute of Interior Design Journal
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• v.21 no.6
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• pp.212-223
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• 2012

The "Eco-friendly", "Green" concepts was began around 1992 after the Rio Environmental Summit, and the need for sustainable development globally widespread. The green building certification system was began around 2000 and the concept of green building was started in the late 1990s. The green building, which welcomes a period of radical change, is for the survival of the Earth "climate change" and reducing energy consumption in building sector. In this architecture of eco-friendly concept, the green building is rapidly expanding and existing as a ecological environment preservation. Moreover, the realization of zero energy house is to mandate for new buildings in 2025. The aim of further eco-friendly is through the prior ecosystems to restore and product energy for the 9 Green Building model houses in this paper. Building in the concept of ecology is to show about change into 7R's from the 3R's. The "Reduce", "Reuse", "Recycle" consisting of "3R's" is correlated with the traditional to the present Green Building Design. U.S. NCARB (National Council of Architectural Registration Boards) change into the concept of 7R's as "Receive", "Restore", "Respect" and "Remember", added to "3R's". In this paper, the 9 Green Building model houses do not meet the criteria of 7R's. But, the Green Tomorrow of Samsung C & T Corporation meet the 6 criteria for 7R's. This company is most comfortable at low carbon Green Building model houses. Conclusionally, introduction of eco-friendly technologies and amenities for the health of human and natural community life is to advance eco-friendly construction and enhance brand value of housing. By the way, The problem of eco-friendly architecture is initial investment and maintenance. Therefore, eco-friendly architecture and government has to try solving of this difficulty.

• The Mathematical Education
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• v.61 no.3
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• pp.419-439
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• 2022

This study is based on Freudenthal's mathmatising process and the didactical phenomenology of linear function concept, I have described and examined the process in which students represent the constant rate of change into tables, graphs and equations and, in this way, how they construct mental objects and essence of the linear function concept. The students used the proportionality as composite units, when they represented the phenomenon with constant rate of change into tables. When representing in graphs, all but one student represented it into a line. There were differences among the students in the level they were using the given conditions, co-variation perspective, and corresponding rules when formulating equations. The students compared the relationship between two variables in a multiplicative way, and under the guidance of teachers they reached to the understanding that its relationship becomes a constant. Moreover, they could construct mental objects of a constant rate of change, understanding the situation where the relationship between time difference and distance difference becomes one value, namely speed. The students had difficulties in connecting the rate of change with the inclination of a line. The students constructed the essence (concept) of linear functions, after building and organizing the image that the rate of change is constant, the graph is linear, and the equation is formulated as y=ax+b (a: inclination, b: intercept).

• Archives of design research
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• v.15 no.4
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• pp.409-416
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• 2002

The overall concept of the interior space on a vehicle, which is related to the exterior design presents a new turning point at the body design concept on a vehicle and it means the interior space on a vehicle has the largest portion. The concept of the roominess at the interior space is consisted on many physical dimensions for the comfort of passengers, but these elements should be considered also as the result of the dynamic reflections of the characteristics of market demand, and it is not only to designate the physical dimensions and positions of the interior design elements, but also to influence to the total body shape of the vehicle. These days the concept of the interior space is now on the way of changing which is not limited only to the passenger car. The change is more evident especially at the total body shape which is not only the details of the exterior style and it would expend to other type of vehicles.

• Journal of Science of Art and Design
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• v.2
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• pp.193-221
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• 2000

The postmodern culture since the later 20C breaks downa tradition a relation between the reality and languages or sign images expressing it. It develops in the way to review the meaning on the object's imitation or the representation to have been followed since Plato and represent the new state and concept of expressed things. Also, The visual art leads an change of paradigm by images giving up the visual resemblance or the function of representation and endowing them with the new sense. This essay has a purpose to study an important discussion about this change centered on Baudrillard and Lacan. A sociologist Baudrillard promotes the concept of 'simulation' through detecting the reality and the social and historical state of the image. Studying on the course of this change, he calls the step that the image escapes from the stage to reflect the reality and become the pure imitation by itself simulation. The image in the stage of simulation is called 'hyperreality' because it doesn't have any an indicator or a substitute and happens by models without the original or the reality. So he asserts that art is not to contain some absoluteness or transcendency as the past, but to be as the spectacle with characteristics of meaningless, emptiness, contingency. Lacan dismantles the concept of the absolute Cogito to have become the center of the western ideology, and creates the concept of 'Other'. He concludes also the reality exists but can't be captured, and it's impossible for the thinking subject can reach it. The concept of new image which can be thought as the Symbolic in Lacan is 'Signifier without Signified' since it isn't possible to be the transcendent Signifier fixing the meaning finally in it. His 'Gaze' theory is which to be emitted in other's area determines the subject. Equally Baudrillard and Lacan sets up the new state of the image through the end of representation system As for Baudrillard, art intends to the worthlessness and is nothing but imagination. But in Lacan a picture represents the subject being in process by the dialectic of desire.

• Korean Journal of Adult Nursing
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• v.23 no.6
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• pp.527-542
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• 2011

Purpose: This paper is a report of an analysis of the concept of pro-environmental health behavior. Methods: Rodgers' method of evolutionary concept analysis was used to analyze the concept. A literature search using keywords 'pro-environmental health behavior, 'environmental health behavior', and 'eco-friendly health behavior' was conducted using PubMed, CINAHL, PsychINFO, and RISS and utilizing the results published from 1983 to 2011. Database and bibliographic searches yielded 84 records. Results: Four critical attributes of pro-environmental health behavior were identified as 'prevention and protection', 'internal process', 'altruism', and 'alternative'. Antecedents to pro-environmental health behavior were climate change, environmental pollution, and health risk. The consequences of pro-environmental health behavior were individual and social behavioral changes. Conclusion: The concept of pro-environmental health behavior developed in this project may offer information to be considered as the concept is further develop and efforts are made to measure the attributes of pro-environmental health behavior.

• Journal of the Daesoon Academy of Sciences
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• v.26
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• pp.143-182
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• 2016

The Qi(氣) concept in the Orient is the important concept which forms the world-view and thinking structure of the Oriental. The idea of Qi unfolds two ways. The first is the cosmogony that is the theory explaining the creation and change of universe through the change of Qi. The second is the preservation theory that think human body is full of Qi and we can be the immortal by raising Qi inside human body. The canon of Daesoonjinrihoe(大巡眞理會), Jeon-gyung(典經) also says about Qi many times especially in the doctrines about the object of belief and Cheonjigongsalon(天地公事論). This paper is willing to systematize the discussion of Qi in Daesoon(大巡) thought through researching Sangjeguan (上帝觀) and Cheonjigongsalon. The object of religious faith in Daesoonjinrihoe is Gucheon(九天)-yeungwon(應元)-noisung(雷聲)-bohwa(普化)-cheonjon(天尊)-gangsung(姜聖)-sangje(上帝) and Won(元) concept in the explanation of this divinity is deeply related to Wonqi(元氣) thought of the Oriental traditional Qi idea. And the theory of Qi(Qilon, 氣論) in Sangjeguan is related to electricity and the idea that the supreme God governs all things by electricity is the very original interpretation only found in Daesoon thought. The Qilon in Cheonjigongsalon is based on the Qilon of traditional thought that sees Qi is the element of all things and all thing are formed by the change of Qi. And the unique feature of the Qilon is saying that the supreme God, Cheungsan(甑山) operates Qi of universe and arouses the change of Qi. That is to say, God Cheungsan saved the world and all living beings by eliminating and giving and changing and moving and gathering and combining Qi. The characteristics of Qilon in Cheonjigongsalon is that the transcendental existence having human body has the control of the change of Qi in the universe. In conclusion, Qilon of Dasesoon thought tells that Gucheon-Sangje Chengsan governs all things by electricity and he fixed the old world and opened the new world like paradise by conducting the change of Qi.

• Journal of the Korean Society of Fisheries and Ocean Technology
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• v.28 no.1
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• pp.27-38
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• 1992

The paper presents a digital speed control approach of induction motor systems by using a digital redesign method and adopting a well known 2nd order model as the system model equation. The basic concept using the modeling equation is induced from the control theory stand point such that we can describe usually the motor system connected by inverter, generator and load etc. just as a mechanical system to be controlled. The concept does not demand us the complicated vector-based modeling equation adopted in the traditional methods for the speed control of induction motor. The effectiveness of the servo control system composed by the above mentioned design concept is illustrated by the experimental results in the presence of step reference change and generator load variation. It is observed from the experimental results that the steady state error of the experimental set up becomes zero after some regulation time and the induction motor system is robust in spite of reference signal change and load variation of generator.

• 중국학논총
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• no.63
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• pp.299-324
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• 2019

This essay is politico-philosophical y examining the Ho-Shang Kung's Commentary on the Lao Tzu(HSKC) and reveals that there was a concept of 'the Monistic Body' as like as G. Deleuze and P. Guattari's concept 'Body without Organs.' The main idea of the political philosophy in HSKC is mentioned as 'Governing the Body'(GB) and 'Governing the State'(GS), that means a macrobiotic hygiene and a ruling the state respectively. GB is not limited to a personal action, because HSKC is not a Yangist work. All of the prior studies have been fail to point out HSKC's true pioneer the Lu Shi Chun Qiu. But a truly dramatic turning must be belonged to Dong Zhong-shu, he was the first man that used the word Governing to the Body, it indicated a conceptional change. The Body is traditionally not a concept connected with Governing, only just the State can be. But After Dong's change, HKSC attempted again to synthesize the theories of Huang-lao school and Dong's theory about the Body and the State.

• Journal of the Korea Furniture Society
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• v.26 no.2
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• pp.112-121
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• 2015

Concept based Design-Art is a flow formed while focusing on works not dividing boundaries with concept on top in a transition to content-centered communication methods from medium-centered communication methods so far dividing design genres. This movement begins in a try to create upper-level concepts before works and products come into being in pure art and design respectively. This thesis draws out the definition of Concept based Design-Art through its researches, diagnoses directionality of Concept based Design-Art by analyzing Concept based Design-Artists' works and considers their social duties and roles. Outcome of this study will help working authors, designers, and Design-Artists grasp the changing phases of design and art, establish their own directionality, and predict how the Concept based Design-Art market will change in the years ahead. Besides, it will be a good reference by which for them to build their own 'concept,' consider their relationship to the society and check where they are.