• 한국기계가공학회지
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• 제2권1호
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• pp.5-14
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• 2003

Cutting fluids used for superfinishing are usually mineral based oils With sulfur and chlorine additives. These cutting fluids are an environmental hazard and can adversely affect the health of personnel on the shop floor. The present investigation was undertaken to explore the possible alternative use of environmentally-conscious cutting fluids for superfinishing. Unlike mineral oils, these environmentally-conscious cutting fluids are biodegradable and non-hazardous. Experiments were conducted for testing an ester oil manufactured by Accu-Lube applied in miniscule amounts using the Minimum Quantity Lubrication (MQL) technique. A significant improvement in stock removal was found with the 6 stones tested. The specific energy values associated with the process were also significantly lower than those obtained previously with conventional straight oils and the water based synthetic fluid, indicative of better lubrication, while the surface roughness was comparable. These tests prove that MQL with ester oils can be a very effective environmentally-conscious alternative to conventional straight oils.

• Human Ecology Research
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• 제53권5호
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• pp.581-594
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• 2015

This paper analyzes the effects of adolescents' cultural disposition and self-conscious emotion on empathy according to gender and age. Data were collected from self-report questionnaires for 385 adolescents in Chungbuk province. The major results of the study were as follow: First, adolescents who perceived high collectivism showed a high ability on perspective taking. Additionally, girls who had high guilt showed a high ability on perspective taking. Sixth graders who had high guilt and low shame and eleventh graders who had high pride showed high ability on perspective taking. Second, boys who perceived high collectivism and guilt, and girls with high individualism, low shame, and high guilt showed a high ability towards fantasy. Sixth graders who had high individualism and guilt and low shame, eighth graders with high guilt and eleventh graders with high individualism, collectivism and guilt showed high ability towards fantasy. Third, adolescents with high collectivism showed high ability on empathic concern. Additionally, boys, girls, and eleventh graders with low shame and high guilt, and sixth graders with low shame showed a high level of empathic concern. Fourth, all adolescents with high guilt showed a high level of personal distress. Additionally, eighth graders with low individualism and eleventh graders with low pride showed a high level of personal distress. In conclusion, the significant relationships among cultural disposition, self-conscious emotion, and empathy are different for gender and age groups. Implications for future studies are provided.

• 한국환경교육학회지:환경교육
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• 제7권1호
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• pp.88-105
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• 1994

Since the Rio Convention of 1992, the international community has displayed a heightened consciousness concerning the Earth environment and domestic attention on the said subject has also rapidly increased. An Ecological life style signifies the conscious efforts to preserve the environment interpreted into quotidien action. For the realization of conservation in action, an understanding of the specific details of environmental preservation must precede. The environmental conservation action in the homes was systematically approached in this study as an input-process-output and feedback cycle. The input phage is the consumer oriented buying stage, the while the process is the actual use of the products and the output stage consists of categorizing and producing wales, the feodbach being recycling of resources. At each stage the attitude which is devoted to environmental consciousness plays a big ride in the actual preservation of the Earth environment. in order to effectively conserve the environment, efforts displayed by the business sector is as important as implementation of environmentally conscious action at home. During the process of producing and distributing products, and attitude and action in preservation efforts are crncial and the responsibility ageat. For the business sector to effectively initiate environmental preservation into action, institutional support from the government and cooperation from the homes is of essence. Consolidated efforts to atter the superfrony life style into ecological life styles and ralues is essential to solve the most important socio-economic issue of the 90's of preserving the earth.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2003년도 춘계학술대회
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• pp.956-961
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• 2003

Recently, environmental pollution has become a significant problem in industry and many researches have been investigated in order to preserve the environment. Environmentally conscious machining and technology have more and more important position in machining process. In the milling process, the cutting fluid has greatly bad influence on the environment. In this study, the machining of blade parts(12Cr steel) using the cutting fluid, compressed cold air and oil mist etc., also, the productivity and the surface topography was improved by using new end-mil tool considering tool material and shape.

• The International Journal of Costume Culture
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• 제2권2호
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• pp.31-44
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• 1999

The purpose of this study was to investigate the level of environmentally conscious consumer behavior, and to identify the influencing variables and causal relationship. Data were collected from questionnaires with 275 housewives who were residents of Seoul and Kyunggi-do. The major findings were as follows : (1) The level of environmentally conscious behavior differed significantly according to occupation, income, averaged monthly clothing expenses, residence type and residential area. (2) The consumer's clothing behavior related to the environmental consciousness differed significantly according to age, education, matrimonial status, income, average monthly clothing expenses, residence type and residential area. (3) The use of mass media differed significantly in the consumer's environmental consciousness.

• 한국조경학회지
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• 제13권1호
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• pp.25-42
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• 1985

The objective of this article is to develop residential site planning techniques for the energy conservation by focusing on energy conscious site design process, influencing natural factors for energy conservation and suggestion of multi - family housing Prototypes. This article is the second part of the article titled "A Study on an Energy - Effective Site Planning for a Residential Environment"which is published in the previous issue (Vol. 12, No. 2) of this journal. The first part of the article dealt with how to make best use of energy conserving effect of natural forces such as sun, wind and water, and the selection techniques of suitable residential site for achieving energy conservation. The second part proposes the energy conscious design process of residential site development and suggests building forms of single family and multi -family housings. The three multi - family housing prototypes haute been developed which are most energy -effective ; the linear type, the cut -de -sac type and the atrium type. In the process of creating the prototypes, energy conserving design criteria have been also developed. These criteria can be used to develop some other alternative prototypes.

• Journal of Mechanical Science and Technology
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• 제18권12호
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• pp.2182-2189
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• 2004

In the recent years, environmentally conscious design and manufacturing technologies have attracted considerable attention. The coolants, lubricants, solvents, metallic chips and discarded tools from manufacturing operations will harm our environment and the earth's ecosystem. In the present work, the Tukey method of multiple comparisons is used to select the minimum level of coolant required in a turning process. The amount of coolant is varied in 270 designed experiments and the parameters cutting temperature, surface roughness, and specific cutting energy are carefully evaluated. The effects of coolant mix ratio as well as the amount of coolant on the turning process are studied in the present work. The cutting temperature and surface roughness for different quantity of coolant are investigated by analysis of variance (ANOVA) - test and a multiple comparison method. ANOVA-test results signify that the average tool temperature and surface roughness depend on the amount of coolant. Based on Tukey's Honestly Significant Difference (HSD) method, one of the multiple comparison methods, the minimum level of coolant is 1.0 L/min with 2% mix ratio in the aspect of controlling tool temperature. F-test concludes that the amount of coolant used does not have any significant effect on specific cutting energy. Finally, Tukey method ascertains that 0.5 L/min with 6% mix ratio is the minimum level of coolant required in turning process without any serious degradation of the surface finish. Considering all aspects of cutting, the minimum coolant required is 1.0 L/min with 6% mix ratio. It is merely half the coolant currently used i.e. 2.0 L/min with 10% mix ratio. Minimal use of coolant not only economically desirable for reducing manufacturing cost but also it imparts fewer hazards to human health. Also, sparing use of coolant will eventually transform the turning process into a more environment-conscious manufacturing process.

• 품질경영학회지
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• 제38권4호
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• pp.521-530
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• 2010

Global regulatory pressures relating climate change and environmental responsibility are asking companies to find out the best way for sustaining their continuous business growths. It could be known that inadequate management for environmental issues are bad for business, negatively affecting brand image, causing unnecessary losses and costs for environmental preservation. For this reason, environmentally conscious green business growth has been recognized as an essential requirement for a company to stay in business. Many companies are looking for green business opportunities of improving their environmental and financial results, and struggling with how green fits into their business. In this paper, the Green Six Sigma, an environmentally conscious Six Sigma methodology, is presented as a way to find solutions for green growths. The Six Sigma is known as a disciplined, data-driven approach and methodology for achieving world-class performance in any process from manufacturing to transactional. In chronological order, the Six Sigma has been evolved from Motorola's quality-oriented methodology to GE's cost-oriented lean approach, and is being evolved and developed as an environment-oriented green growth approach. There is no doubt that the Green Six Sigma, as an engine of green growth, is a power tool for achieving competitive business performance and reducing the impact on the environment.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2006년도 춘계학술대회 논문집
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• pp.225-226
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• 2006

As the technique of high-speed end-milling is widely adopted to machining field. The investigation for microscopic precision of workpiece is necessary for machinability evolution. The environmental pollution has become a big problem in industry and many researcher have investigated in order to preserve the environment. The environmentally conscious machining and technology have more important position in machining process. In the milling process, the cutting fluid has greatly bad influence on the environment. The damaged layer affect mold life and machine parts in machining. In this study, the cutting force, the surface roughness, micro hardness and residual stress is evaluated according to machining environment. Finally, it is obtained that the characteristics of damaged layer in environmentally conscious machining is better than that in conventional machining using cutting fluid.

• 대한가정학회지
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• 제46권2호
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• pp.85-96
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• 2008

Given the evolving nature of the family unit, a large number of children are being left unsupervised after school. The purpose of this study is to understand the adaptation ability and emotional capacity of these children. To achieve this objective, we investigated the different characteristics of 708 middle-school students in Seoul, dividing them into two categories adult-care children, for whom adults provide care after school, and self-care children for whom no adult supervision was present. In particular, we examined children's adaptation to the school environment and possible self-consciousness difference between self-care and adult-care children, in consideration of their family characteristic; divorced, separated, widowed parent, remarried parents, ordinary families. The results showed that self-care children tend to have a higher rate of shame-proneness and guilt-proneness compared to adult-care children. Furthermore, self-care children exhibited lower school adaptation rate than adult-care children. There was no significant difference in schoolmate relationships between the two groups. In relation to specific family structures, children from reorganized families showed no significant differences in school adaptation and self-conscious, while self-care children from ordinary families revealed low school adaptation and high self-conscious characteristics. The results of this study are critical in the effective analysis and understanding of children's adaptive and emotional behaviors arising from changes in their family structure.