• 제목/요약/키워드: Environmentally-conscious

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Dual-PDA를 이용한 절삭유 에어로졸 특성분석에 관한 연구(I) -선삭공정을 중심으로 (A Study on the Characteristics Analysis of Cutting Fluid Aerosol Using Dual-PDA System - for Turning Process)

  • 정진열;황덕철;홍기배;우창기;황준
    • 한국분무공학회지
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    • 제10권2호
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    • pp.10-17
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    • 2005
  • The proposed research has been performed to know the characteristics of cutting fluid aerosol formation using Dual-PDA system in machining process. The cutting fluid aerosol size and concentration is common attributes that quantify the environmental intrusiveness or air quality contamination. The atomized cutting fluid aerosols can be affected to human health risk such as lung cancer and skin irritations. Even though cutting fluid can be improved the machining quality and productivity in a carefully. its use must be controlled and optimized carefully. This experimental works using Dual-PDA were performed to analyze the cutting fluid aerosol behaviors and characteristics in turning process using precise aerosol particle measuring system. The obtained experimental results profovide basic knowledge to develop the environmentally conscious machining process. This results cail be provided as a basis to estimate and control the hazardous cutting fluid aerosol in machining process.

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Analysis of Cutting Fluid Atomization and Environmental Impact through Spin-Off Mechanism in Turning Operation for Environmentally Conscious Machining(II)

  • Hwang Joan;Hwang Duk-Chul;Chung Eui-Sik
    • International Journal of Precision Engineering and Manufacturing
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    • 제6권3호
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    • pp.3-7
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    • 2005
  • This paper presents the experimental results to verify the atomization characteristics and environmental impact of cutting fluid. Even though cutting fluid improves the productivity through the cooling and lubricating effects, environmental impact due to cutting fluid usage is also increased on factory shop floor. Cutting fluid's aerosol via atomization process can generate human health risk such as lung cancer and skin diseases. Experimental results show that the generated fine aerosol of which particle size less than 10 micron appears near working zone under typical operation conditions. The aerosol concentration also exceeds NIOSH regulations. This research can be provided as a basis of environmental impact analysis for environmental consciousness.

인천지역 성인소비자의 환경의식과 환경의식적 행동에 관한 연구 (A Study on the Environmental Consciousness and Behavior of the Consumers in Incheon Area)

  • 성영애
    • 가정과삶의질연구
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    • 제23권3호
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    • pp.35-51
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    • 2005
  • The purposes of the study were to examine the level of environmental consciousness and behavior of the consumers living in Incheon areas and to find out the influencing factors increasing or decreasing the environmental consciousness and behavior. A survey was conducted during September 17 thru 30 in 2004 using questionaires developed in the study. Total 1,567 consumers were analysed using SPSS program. Major findings of the study were as follows: The level of environmental conscious behavior is not low in absolute perspectives, but it is lower than environmental consciousness except environmental attention. The most influencing factors of environmental behavior were perceived importance of the behaviors, environmental behaviors of neighbors, and attention to the environmental problems. The effective environmental education and policy can be made focusing on these influencing factors.

No-binding Molding Technology Development for Waste Rubber Recycling

  • Zhang, Xiao Jie;Hong, Sung Woo;Kim, Jin Kuk
    • Elastomers and Composites
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    • 제53권1호
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    • pp.19-25
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    • 2018
  • In this study, a new process was developed to develop the waste rubber material recycling system. Firstly, the blending of the reclaimed rubber/virgin rubber as a compounding technology was investigated in this study. Secondly, the removal of odor by using zeolite. Thirdly, the continuous crosslinking process technology was studied the technology can solve the environmentally harmful substances and economic problems. Based on this technology, we have started to develop application technologies such as floor mats and rubber sheets for forklifts, and will further study the environmentally conscious products in various ways. Our research will contribute to the recycling industry.

환경을 고려한 역물류시스템의 사례 연구 (A Case Study of The Reverse Logistics Considering An Environment)

  • 김현수;한대희;이인철
    • 산업경영시스템학회지
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    • 제24권66호
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    • pp.69-77
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    • 2001
  • The management of return flows induced by the various forms of reuse of products and materials in industrial production processes has received growing attention throughout this decade. As one of the developing countries in the world trade market, we have to apply the reverse logistics system considering an environment seriously, and to implement reverse logistics activities abreast with the forward logistics system of a companies. Therefore, the objective of this study was to discuss what the reverse logistics system of Environmentally Conscious Logistics Systems(ECLS) is by introducing a case study.

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소방용 난연특성 전선의 성능 평가

  • 윤헌주;김동규;신현택;신종열;홍진웅
    • 한국산업안전학회:학술대회논문집
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    • 한국안전학회 2002년도 추계 학술논문발표회 논문집
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    • pp.124-130
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    • 2002
  • 화재 발생 재해요인의 가장 큰 비중을 차지하는 것이 전기화재이다. 이러한 전기화재는 1991년도부터 2000년도까지 10년 동안 화재발생 1순위를 차지하고 있으며 전기기기나 전력설비사용의 증가와 함께 점점 화재건수가 증가하고 있으며 이로 인한 인명피해 및 재산피해는 물론 국가 경제에도 크나큰 손실을 주고 있으므로 이에 대한 대책요인으로 사회 전반적으로 환경보전의 움직임 추세에서 전선ㆍ케이블에 대해서도 환경에 대한 배려가 강하게 요구되어 있고, 유해 화학 물질을 사용하지 않고, 유해 폐기물을 내보내지 않는 제품을 개발하여 환경에 영향을 주는 영향을 감소하는 환경조형제품 (Environmentally Conscious Product : ECP)의 개발이 중요한 과제로 대두되고 있다.(중략)

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환경요소를 고려한 공동주택 단지계획요소 도출 및 가중치 평가 (Deducing environmentally conscious factors for apartment complex planning and weight evaluation)

  • 정숙진;서정범;윤성환
    • KIEAE Journal
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    • 제16권6호
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    • pp.51-56
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    • 2016
  • Purpose: As declines in the quality of residential environments occur, such as urban heat island effect, tropical night phenomenon, and violations of right to light and privacy due to urban densification and high rise building, these problems are emerging as social issues. In order to improve these issues, design factors which consider environmental aspects must be selected when planning apartment complexes, and ways to reflect them in the planning phase must be explored. Method: In this study, the analytical hierarchy process(AHP) was used to deduce design factors that considered environmental elements during the planning of apartment complexes. Furthermore, the priority and weight for each evaluation index were assessed. The objective was to propose a guideline for planning apartment complexes by finding the best solution for each evaluation index using complex weight values. Result: Floor area ratio was selected as the most important evaluation criterion in the environmentally conscious evaluation index for apartment complex planning. The shape and placement of skylights were selected as the most important evaluation criteria in the sunshine environment for a pleasant residential environment. Ground surface cover design was selected as the most important criterion in the outdoor thermal environment index for improving the microclimate within cities and apartment complexes. Thus, the results of this study can serve as an investigation guideline that concerns policy and regulations, and as reference data that can be used in planning apartment complexes.

친환경 섬유소재에 대한 대학생들의 인식도 연구 (University Students' Awareness of Eco-friendly Textile Fiber)

  • 이선영;이승구;김정화;이정순
    • 한국생활과학회지
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    • 제21권4호
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    • pp.781-790
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    • 2012
  • In midst of growing interest and awareness towards sustainability and being "green", there has been increased demand for sustainable clothing. In the purpose of boosting eco-friendly textiles industry, this research was conducted by investigating environmentally-conscious clothing behavior of university students and assessing their views on eco-friendliness of fibers. Thus, their awareness on recycled polyester fiber was evaluated. The research was conducted by surveying 257 university students residing in Daejeon. The data were analyzed with descriptive statistics, factor analysis, and reliability analysis, using SPSS 19.0. The results were as follows. 1) The majority of the subjects answered "Disposing clothing in the clothing recycling container" to reduce environmental impact. 2) Six factors of eco-friendliness of fiber were extracted as reutilization, unfinishedness, economics, environment preservation, natural materials, and slow fashion by using factor analysis. 3) Subjects scored organic cotton as most eco-friendly among various fibers. Recycled polyester fiber was graded less sustainable than natural fiber, but more eco-friendly than artificial one. 4) In assessment of subject's awareness of recycled polyester fiber, they highly valued on resource-reutilization and economics, but less valued on its hygiene, thermal insulation and health-functionality.

지구환경보전과 가정에서의 생태적인 생활양식 (A Study on the Ecological Life Style in the Home and Preservation of the Earth Environment)

  • 최남숙
    • 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.

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Analysis of Cutting Properties with Reference to Amount of Coolant used in an Environment-Conscious Turning Process

  • Yang, Seung-Han;Lee, Young-Moon;Kim, Young-Suk
    • 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.