• Title/Summary/Keyword: Behavior preservation

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Analysis of Mechanical Behavior of Nanowire by $Nos\acute{e}-Poincar\acute{e}$ Molecular Dynamics Simulation ($Nos\acute{e}-Poincar\acute{e}$ 분자 동역학 알고리즘을 이용한 나노 와이어의 역학적 거동 해석)

  • Lee, Byeong-Yong;Cho, Maeng-Hyo
    • Proceedings of the KSME Conference
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    • 2007.05a
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    • pp.506-511
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    • 2007
  • Mechanical behavior of copper nanowire is investigated. An FCC nanowire model composed of 1,408 atoms is used for MD simulation. Simulations are performed within NVT ensemble setting without periodic boundary conditions. $Nos\acute{e}-Poincar\acute{e}$ MD algorithm is employed to guarantee preservation of Hamiltonian and temperature. Numerical tensile tests of Nanowire are carried out with constant strain rate. Additionally, temperature and strain rate effects are considered. Stress-strain curve is constructed from the calculated Cauchy stresses and specified strain values. In (22,4,4) Copper nanowire, non-linear behavior appears around ${\epsilon}\simeq0.09.$ At this instance, starting of structural reorientations are observed. At the onset of reorientation, the modulus characteristics are also investigated.

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Analysis of Mechanical Behavior of Nanowire by Molecular Dynamics Simulation (분자동역학을 이용한 나노 와이어의 역학적 거동 해석)

  • Lee, Byeong-Yong;Cho, Maeng-Hyo
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2007.04a
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    • pp.433-438
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    • 2007
  • Mechanical behavior of copper Nanowire is investigated, An FCC Nanowire model composed of 1,408 atoms is used for NID simulation, Simulations are performed within NVT ensemble setting without periodic boundary conditions, Nose-Poincare MD algorithm is employed to guarantee preservation of Hamiltonian. Numerical tensile tests are carried out with constant strain rate, Stress-strain curve is constructed from the calculated Cauchy stresses and specified strain values, Non-linear behavior appears around $\varepsilon$=0.064, At this instance, starting of structural reorientations are observed.

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Environmental Perception, Ethical Consumer Behavior, and Price Sensitivity: Impact on Using Intention of Eco-Friendly Products

  • Yang, Hoe-Chang;Han, Tae-Jeom
    • Journal of Distribution Science
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    • v.12 no.10
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    • pp.57-65
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    • 2014
  • Purpose - This study aims to identify the effect of corporate eco-friendly marketing, which focuses on corporate social responsibility, on the environment, natural preservation and protection, and environmental concern among consumers. Research design, data, and methodology - A total of 92 valid questionnaires were used for analysis. A structured model was established and a 3-step mediated regression test was employed to see how consumers' perception of ethical consumer behavior and price sensitivity are influential in relation to the impact of consumer's perception of eco-friendliness on the using intention in relation to eco-friendly products. Results - Three factors of eco-friendly perception all have a positive impact on ethical consumer behavior, thus lowering their price sensitivity. In particular, it is found that environmental knowledge and environmental concern are important to promote ethical consumer behavior. Conclusion - It is found that, to increase the using intention of eco-friendly products, an enterprise should practice an eco-friendly marketing strategy, deliver eco-friendly related knowledge, and include contents to allow consumers to take an interest in the environment for effective performance of marketing.

The Effect of Water Environmental Program Focused on Problem-Based Learning for Elementary School Students on Pro-Environmental Behavior (문제 중심 학습의 물 환경교육 프로그램이 초등학생의 환경 친화적 행동에 미치는 영향)

  • Lee, Ji-Hyung;Lee, Sang-Won
    • Hwankyungkyoyuk
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    • v.22 no.2
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    • pp.23-42
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    • 2009
  • The purpose of this study is to investigate the influences of water environmental program using PBL on pro-environmental behavior for 4th graders in elementary school. The results of this study are as follows. First, the experimental group is more effective in promoting the pro-environmental attitude compared with the control group. Second, the experimental group is more effective in promoting the pro-environmental behavior compared with the control group. Third, the experimental group is not more effective in promoting the pro-environmental knowledge compared with the control group. Fourth, students are concerned and interested in the environment and environmental problems of the daily-life. And, they presented positive attitude and active participation toward environmental preservation. So, the process of PBL using water environmental program showed that it promotes active learning participation and various action. In conclusion, the environmental education program through PBL program has a positive effect on pro-environmental attitudes and behavior of elementary school students. It is demanded that more intensive research on this study should be done, linking with teaching and learning method, as a follow-up activity.

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The Effects of the Socially Responsible Clothing Consumption Attitude on the Clothing Disposition Behavior (Part I) (사회 책임적 의류 소비 태도가 의류 처분 행동에 미치는 영향(제 1보))

  • 장경혜;박재옥
    • Journal of the Korean Society of Clothing and Textiles
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    • v.21 no.4
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    • pp.795-805
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    • 1997
  • The purpose of this study is to clearly understand the Korean consumer's socially responsible consumption attitude and disposition behavior through revealing by use Fishbein's Multi-Attributes Model as a conceptual frame, the relationship between the socially responsible clothing consumption attitude factors and disposition behavior pattern, and relations of demographic variables. Data were collected from the adult females residing in Seoul. Judgment Sampling were. performed twice during March of 1996 and total 549 sets of answers were used for final analysis. The result are following. First, by looking at the relationship between intrinsic side of socially responsible consumption attitude and disposition behavior, the attitude shows more economical disposition when consumers are in considerate about preservation of natural resources and clothing consumption and when consumers favor purchasing a second hand product, On the other hand, consumers' behavior shows more altruistic disposition, when they favor recycling and acquisition of second hand clothing and when not favor fashion. The result of analysis of relationship between the socially responsible clothing consumption attitude and demographic variables shows that income, age and education level relates to some intrinsic side of socially responsible clothing consumption attitude. On the other side, the analysis result shows that consumers with relatively lower education normally practice economical dispotion, while consumers with higher education level do altruistic disposition. Also, elder and married consumers tend to do more altruistic disposition.

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The Consumer Consciousness and Behavior on Environmental Problems of the High School Girls (여고생의 환경문제에 대한 소비자 의식과 행동)

  • 박영옥;신효식
    • Korean Journal of Human Ecology
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    • v.1 no.1
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    • pp.44-65
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    • 1998
  • The purpose of this study are to measure the overall level of consumer consciousness and behavior on environmental problems of high school girl students and to analyze the most influential factors related to the socio-demography and the education on environment. This study also aims at inspiring the students with sound view of environments and furnishing basic data for the development of consumer education program. The researcher used questionnaires on consumer consciousness scale and consumer behavior scale for the purpose of this study. 640 students were surveyed randomly in Kwangju and Chonnam, and 608 questionnaires were selected as final analysis data. Major Findings were as follows: 1. The average score of consumer consciousness and behavior on environmental problems of the high school girls were 86.0 on scale of 110 (72.7 on scale of 100) and 63.3 on scale of 115(43.8 on scale of 100). 2. The consumer consciousness and behavior on environmental problems of the high school girls showed partial differences according to the socio-demography variable. 3. The consumer consciousness and behavior on environmental problems of the high school girls showed partial differences according to the education to environment variables. 4. The consumer behavior on environmental problems had a positive relationship with the consumer consciousness. 5. The most influential variables on the consumer consciousness were necessity of the education on environment, the type of school, region, and monthly allowance money in sequence. And the most influential variables on the consumer behavior were the campaign on environment in home, participation in environment preservation, cosciousness of environment, and education experience on environment in sequence. (Korean J Human Ecology 1(1) : 44∼65, 1998)

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Experimental Study of Flexural Behavior of Reinforced Concrete Beam Using WFS and Recycled Aggregate (순환골재와 폐주물사를 활용한 철근콘크리트보의 휨거동에 관한 실험연구)

  • Kim, Seong-Soo;Lee, Dae-Kyu
    • KIEAE Journal
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    • v.8 no.5
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    • pp.61-68
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    • 2008
  • For the recycling of the resources and the preservation of the environment, this study's purpose is to measure flexural behavior of the reinforced concrete beams with the major variables like concrete strength, replacement ratio of the recycled aggregate and the waste foundry sand and the tension reinforcement ratio and to present the data of the recycled aggregate used for the structure design. The experiment on the flexural behavior resulted in the followings. The ultimate strength of recycled R/C beam was manipulated proportionate to the tension reinforcement ratio, however the strength instantly decreased after passing the ultimate load due to the destroyed concrete of the compression side. The deflection at the maximum load varied from the tension reinforcement ratio by 5.5 times. The test specimen with the tension reinforcement ratio less than $0.5{\rho}b$ showed constant curve without change in the load from the yield to the ultimate load in contrast to the distinctive plastic region where the displacement was rising. Although the strain of main tension steel with the reinforcement ratio indicate different, the design of recycled concrete member can be applied for current design code for reinforced concrete structure as the ratio of tension reinforcement district the under the reinforcement ration in a balanced strain condition.

Experimental Study on the Mechanical Behavior of Reinforced Concrete Beams Exposed to High Temperature (고온에 노출된 철근콘크리트 보의 역학적 특성에 관한 실험연구)

  • Choi, Kwang-Ho;Lee, Joong-Won;Eum, Young-Hoon
    • Proceedings of the Korea Concrete Institute Conference
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    • 2005.05a
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    • pp.127-130
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    • 2005
  • The purpose of this study is to investigate the flexural behavior of reinforced concrete beam members exposed to high temperature. In order to study the flexural behaviors, the 17 specimens have been tested with variables of reinforcement ratios($0.5\rho_{max},\rho_{min}$), heating conditions(nonheating, 400$^{circ}C$, 600$^{circ}C$, 800$^{circ}C$ heating and 1 hour preservation) and loading state(stressed and residual state). The results show that the stiffness and strength of specimens are lower when they are exposed to higher temperature and the pattern of crack and color of specimens exposed to fire are different from ordinary concrete members.

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Automated Code Smell Detection and Refactoring using OCL (OCL을 이용한 자동화된 코드스멜 탐지와 리팩토링)

  • Kim, Tae-Woong;Kim, Tae-Gong
    • The KIPS Transactions:PartD
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    • v.15D no.6
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    • pp.825-840
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    • 2008
  • Refactoring is a kind of software modification process that improves system qualities internally but maintains system functions externally. What should be improved on the existing source codes should take precedence over the others in such a modification process using this refactoring. Martin Fowler and Kent Beck proposed a method that identifies code smells for this purpose. Also, some studies on determining what refactoring will be applied to which targets through detecting code smells in codes were presented. However, these studies have a lot of disadvantages that show a lack of precise description for such code smells and detect limited code smells only. In addition, these studies showed other disadvantages that generate ambiguity in behavior preservation due to the fact that a description method of pre-conditions for the behavior preservation is included in a refactoring process or unformalized. Thus, our study represents a precise specification of code smells using OCL and proposes a framework that performs a refactoring process through the automatic detection of code smells using an OCL interpreter. Furthermore, we perform the automatic detection in which the code smells are be specified by using OCL to the java program and verify its applicability and effectivity through applying a refactoring process.

A behavioral approach to increase recycling behavior: An examinination of effect of environmental alteration and prompts (환경문제에서의 재활용 행동 증진을 위한 행동분석적 실험 연구 - 환경적 변화와 프롬트의 효과를 중심으로-)

  • 오세진;양병화;현보성;황혜연
    • Hwankyungkyoyuk
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    • v.14 no.1
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    • pp.19-31
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    • 2001
  • This study examined the effect of environmental alteration and prompts on recycling behavior. An A-B-BC with a control condition design was employed. Subjects in this study were college students, professors, and employees at a university building. After a baseline phase, environmental alteration was I effect in the next phase and both environmental alteration and prompts were in effect in the final phase for the control condition. The environmental alteration consisted of providing four separation containers for the paper cups, cans recyclable paper, and the disposable on each floor in the building. The prompts consisted of providing the information about the importance of environmental preservation and how to separate the materials in the appropriate containers using an information board and pamphlets. The dependent variables were (1) the number of cans collected in can container, (2) the number of paper cups collected in cup container, (3) the rate of correct separation of cans, (4) the rate of correct separation of paper cups, and (5) the weight of disposable. The rates of correct separations of cans and paper cups were obtained by calculating the percentage of thenumber of recyclable cans and paper cups in the corresponding containers. The results indicated that environmental alteration had positive effects on all the dependent variables. Also, when the prompts were added to the environmental alteration, the incremental effect of the prompts was demonstrated. The implications and limitations of theses findings were discussed and the direction of future studies was also proposed.

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