• 제목/요약/키워드: new green

검색결과 2,250건 처리시간 0.028초

Natural Standard Methodology를 이용한 녹즙재료의 항암효과에 대한 근거 및 권고수준에 대한 연구 (Study for Level of Evidence and Recommendation of Anticancer Effect for the Materials of Green Vegetable Juice by Using Natural Standard Methodology)

  • 유화승
    • 혜화의학회지
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    • 제17권1호
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    • pp.11-19
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    • 2008
  • Objective : We designed this study to analyse the anti-cancer effects of materials of green vegetable juice by using the natural standard methodology and apply the results to new studying and evaluating methods. Methods : We investigated the main stream of complementary and alternative medicine (CAM), the methodology of natural standard, guideline in CAM, and concrete 15 green vegetable juice in cancer therapy. Results : There are 15 graded materials of green vegetable juice that associated with cancer in natural standard contents. Most of them get grade C, unclear or conflicting scientific evidence. Conclusion : Natural Standard aims to provide high-quality, reliable information about CAM therapies to clinicians, patients, and healthcare institutions. We have to acquire more reliable evidence in future.

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ALE 기법을 기반 선박 및 해양 구조물의 내파 성능 분석 (Investigation of Wave Resistance Performance for Ships and Offshore Structures based on Arbitrary Lagrangian Eulerian Method)

  • 이치승;김주현;김명현;이제명
    • 한국전산구조공학회:학술대회논문집
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    • 한국전산구조공학회 2011년도 정기 학술대회
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    • pp.553-556
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    • 2011
  • The primary aim of the present study is to propose new design formulae that can be used to evaluate the structural performance of breakwaters installed on container carriers under green water impact loads. A series of numerical analyses for green water impact loads inducing breakwater collapse have been carried out. The well-known fluid-structure interaction analysis technique has been adopted realistically to consider the phenomenon of green water impact loads. The structural behavior of these breakwaters under green water impact loads has also been carried out simultaneously throughout the transient analysis. A verification study of the numerical results was performed using the actual collapse incidents of breakwaters on container carriers. It would be expected that the proposed design formulae, based on the obtained insights, could be used as practical guidelines for the design of breakwaters on container carriers.

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지속가능한 BSC를 사용한 그린 IT 전략 실행과제들의 평가 (Evaluating Green IT Initiatives Using the Sustainability Balanced Scorecard)

  • 박정선
    • 대한안전경영과학회지
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    • 제19권3호
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    • pp.81-87
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    • 2017
  • Performance evaluation has been done using financial indices which are generally regarded as inappropriate for the organizations which are innovative and progressive. Thus, the Balanced Scorecard(BSC) was developed considering long term performance and invisible performance. This BSC has four perspectives of finance, customer, internal operation, and learning. Based on the BSC, a new BSC has been derived with a fifth view of environmental and social perspective, which is now called as a Sustainability BSC. In this study, we evaluated Green IT initiatives using the Sustainability BSC. The initiatives are categorized as RFID, telepresence, paperless office, logistics management etc. The initiatives were evaluated from the view of five perspectives, resulting in high cor relationships among finance, internal operation, and environmental and social perspectives. Namely, good initiatives from the view of environmental/social perspective are also evaluated as good from the view of finance and internal operation perspectives. In this study, we recommend organizations to introduce Green IT initiatives by showing how Green IT initiatives have contributed to the organizations.

6시그마 그린벨트 교육 프로그램의 비교 연구 (A Comparative Study of Six Sigma Green Belt Training Programs)

  • 홍성훈;송재웅
    • 산업공학
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    • 제16권spc호
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    • pp.7-13
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    • 2003
  • This paper is concerned with a six sigma green belt training program. Comparative studies of existing training programs for three major companies (Samsung Electronics Company, Hyundai Motor Company, and LG Chemical Ltd.) and two consulting firms (Korean Standards Association and Korea Management Association) are made. Based on the comparative studies, a new green belt training program is proposed. The main focus of this program is on manufacturing, specially on cost and waste reductions, yield improvement, and operations with opportunity to improve capacity without major capital expenditure. The green belts take up to 4 or 5 days of intensive, highly quantitative training, roughly corresponding to the five macro phases of the six sigma methodology: define, measure, analyze, improve, and control. The six sigma tool sets for each phase are also specified.

그린빌딩의 품질향상을 위한 공정관리매뉴얼 개발 (Development of Process Management Manual for Quality Improvement of Green Building)

  • 김대건;황현준;류경구
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2013년도 춘계 학술논문 발표대회
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    • pp.245-246
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    • 2013
  • The construction of green building has distinct charicteristics by work classification by applying green technologies. Thus if the new technologies are applied to construction, unskiiled worker can experience construction time delay, reconstruction occurrence and quality decrease because of mistakes during the construction and work progress. For this background, we establish the work progress manual to secure quality and performance during the construction phase of green building and provide method to be used in the construction sight operation.

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High-velocity powder compaction: An experimental investigation, modelling, and optimization

  • Mostofi, Tohid Mirzababaie;Sayah-Badkhor, Mostafa;Rezasefat, Mohammad;Babaei, Hashem;Ozbakkaloglu, Togay
    • Structural Engineering and Mechanics
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    • 제78권2호
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    • pp.145-161
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    • 2021
  • Dynamic compaction of Aluminum powder using gas detonation forming technique was investigated. The experiments were carried out on four different conditions of total pre-detonation pressure. The effects of the initial powder mass and grain particle size on the green density and strength of compacted specimens were investigated. The relationships between the mentioned powder design parameters and the final features of specimens were characterized using Response Surface Methodology (RSM). Artificial Neural Network (ANN) models using the Group Method of Data Handling (GMDH) algorithm were also developed to predict the green density and green strength of compacted specimens. Furthermore, the desirability function was employed for multi-objective optimization purposes. The obtained optimal solutions were verified with three new experiments and ANN models. The obtained experimental results corresponding to the best optimal setting with the desirability of 1 are 2714 kg·m-3 and 21.5 MPa for the green density and green strength, respectively, which are very close to the predicted values.

A New Galaxy Classification Scheme in the WISE Color-Luminosity Diagram

  • Lee, Gwang-Ho;Sohn, Jubee;Lee, Myung Gyoon
    • 천문학회보
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    • 제38권2호
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    • pp.49.1-49.1
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    • 2013
  • We present a new galaxy classification scheme in the Wide-field Infrared Survey Explorer (WISE) [$3.4{\mu}m$]-[$12{\mu}m$] color versus $12{\mu}m$ luminosity diagram. In this diagram, galaxies can be classified into three groups in different evolutionary stages. Late-type galaxies are distributed linearly along "MIR star-forming sequence" identified by Hwang et al. (2012). Some early-type galaxies show another sequence at [3.4]-[12] $(AB){\simeq}-2.0$, and we call this 'MIR blue sequence'. They are quiescent systems with old stellar population older than 10 Gyr. Between the MIR star-forming sequence and the MIR blue sequence, some early- and late-type galaxies are sparsely distributed, and we call these galaxies 'MIR green cloud galaxies'. Interestingly, both MIR blue sequence galaxies and MIR green cloud ones lie on the red sequence in the optical color-magnitude diagram. However, MIR green cloud galaxies have lower stellar masses and younger stellar populations (smaller $D_n4000$) than MIR blue sequence galaxies, suggesting that MIR green cloud galaxies are in the transition stage from MIR star-forming sequence galaxies to MIR blue sequence ones. We present differences in various galaxy properties between the three MIR classes using a multi-wavelength data, combined with the WISE and Sloan Digital Sky Survey Data Release 10, of local (0.03 < z < 0.07) galaxies.

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Low Calorific Gasturbine 매립지 적용 및 유리온실 운용기술 설계 (Design for Landfill Gas Appliation by Low Calorific Gas Turbine and Green House Optimization Technology)

  • 허광범;박정극;이정빈;임상규
    • 신재생에너지
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    • 제6권2호
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    • pp.27-32
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    • 2010
  • Low Calorific Gas Turbine (LCGT) has been developed as a next generation power system using landfill gas (LFG) and biogas made from various organic wastes, food Waste, waste water and Livestock biogas. Low calorific fuel purification by pretreatment system and carbon dioxide fixation by green house system are very important design target for the optimum applications of LCGT. Main troubles of Low Calorific Gas Turbine system was derived from the impurities such as hydro sulfide, siloxane, water contained in biogas. Even if the quality of the bio fuel is not better than natural gas, LCGT may take low quality gas fuel and environmental friendly power system. The mechanical characterisitics of LCGT system is a high energy efficiency (>70%), wide range of output power (30 kW - 30 MW class) and very clean emission from power system (low NOx). A green house has been designed for four different carbon dioxide concentration from ambient air to 2000 ppm by utilizing the exhaust gas and hot water from LCGT system. LCGT is expected to contribute achieving the target of Renewable Portfolio Standards (RPS).

A Global Perspective on Green Sustainability, Corporate Reputation, and Technological Strength for Firm Performance Across Countries

  • Lee, Jooh
    • 유통과학연구
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    • 제10권8호
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    • pp.15-23
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    • 2012
  • This study is an attempt to explore the nature and characteristics of strategic impact of green strategy by environmental capital, corporate reputation, and technology strengths on the firm's performance across countries. The main question addressed in this paper relates to how corporate sustainability, corporate reputation, technology strength, and capabilities influence the firm's economic performance with respect to diverse dimensions of performance measures including sustained growth through the leading firms across countries in the United States, Canada, Europe, and Asia-Pacific countries. Particularly, this study attempts to empirically explore the directions and magnitudes of the operational links between new emerging strategic core competencies (e.g., sustainability green strategy by environmental focus for more sustainable path, corporate reputation by corporate social responsibility and image enhancement, and technology strengths to develop a new product and market) and the firm's economic performance with respect to diverse dimensions of performance such as accounting (ROE and EOA) - and market-based performance (Market value and Tobin's q). Considering all possible limitations that might exist with regard to selected samples and methods, this study demonstrates that environmental sustainability, corporate reputation, technological capabilities and competencies through R&D intensity and patent are most likely to be significantly associated with most market-based performance measures, but the strategic significance of other variables such as capital intensity, leverage, and administrative cost efficiency on performance tends to be different depending on which performance measure is used across different countries with diverse economic and business contexts.

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Enhancing Lifetime of White OLED Device by Minimizing Operating Voltage Increase

  • Lee, Sung-Soo;Choi, Jun-Ho;Ha, Jae-Kook;Lee, Sang-Pil;Kim, Seong-Min;Choi, Ji-Hye;Lee, Soo-Yeon;Kim, Hyo-Seok;Chu, Chang-Woong;Shin, Sung-Tae;Kim, Chi-Woo
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권2호
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    • pp.1658-1660
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    • 2007
  • We fabricate green device having unique life time characteristics of operating voltage reduction with time, ${\Delta}V_{op}$ <0. A green device needs lower voltage than initial voltage for sustaining constant current as life time goes on. It means there are two possible reasons; one is interface modification between anode and HIL due to oxygen plasma treatment and the other is bulk property modification due to combination of new green host and new green dopant. From these materials and oxygen plasma treatment, we can make white OLED device having the characteristics of low ${\Delta}V_{op}$ increasing.

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