• 제목/요약/키워드: sustainable use

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Estimation of the Level of Sustainable Development in Kazakhstan Regions and Recommendation for its Increase

  • Baimukhamedova, Gulzada S.;Nurlanova, Nailya K.;Akhmetova, Sharzada
    • 유통과학연구
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    • 제10권7호
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    • pp.23-31
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    • 2012
  • The purpose of this study is to investigate existing world economic science theories and concepts of sustainable development as well as create original system of criteria and indicators to assess potential and conditions for sustainable development from a regional perspective and based on the above justify proposals for public authorities to improve methods of economic regulation for regional development. To achieve the goal evolution process of existing theories and concepts of sustainable development and "green growth" have been studied in terms of its adaptation to the spatial development of Kazakhstan, comparative dynamics of natural resources consumption in the Asia-Pacific region and Kazakhstan were investigated as well. Methodology. World best theory and practice methods for assessment of the level of sustainable development of the country and some of its territories were also studied. We selected the best system of criteria and indicators for assessment of economic, social and environmental sustainability of regional systems. Methods offered in this article are based on traditional and new factors of economic development and conditions for operation of regional systems. Indicators are chosen with a glance to basic goals for future development of regions in Kazakhstan. It is recommended to use two levels of methodology offered by author, namely national and regional, and at the local level later (districts, municipalities, cities). The results. Method offered by the author has been tested based on materials and statistics of regions in Kazakhstan. Suitability and usability of the proposed system of criteria and indicators for measuring of economic, social and environmental sustainability of regional systems was proved. Based on this analysis it was found out that there are regions in Kazakhstan that differ from each other by most of key indicators of sustainable regional development and this tendency is increasing. Conclusions and recommendations. As a result of this analysis, the authors have substantiated a number of proposals on methods of analysis to be used, improvement of methods of regional development, implementation of institutional reforms, as well as improvement of regional statistics. This article provides recommendations that can be successfully used in the management practices by public authorities to implement a new regional strategy focused on sustainable development in future.

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Single Cell Oil Production from Undetoxified Arundo donax L. hydrolysate by Cutaneotrichosporon curvatus

  • Di Fidio, Nicola;Liuzzi, Federico;Mastrolitti, Silvio;Albergo, Roberto;De Bari, Isabella
    • Journal of Microbiology and Biotechnology
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    • 제29권2호
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    • pp.256-267
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    • 2019
  • The use of low-cost substrates represents one key issue to make single cell oil production sustainable. Among low-input crops, Arundo donax L. is a perennial herbaceous rhizomatous grass containing both C5 and C6 carbohydrates. The scope of the present work was to investigate and optimize the production of lipids by the oleaginous yeast Cutaneotrichosporon curvatus from undetoxified lignocellulosic hydrolysates of steam-pretreated A. donax. The growth of C. curvatus was first optimized in synthetic media, similar in terms of sugar concentration to hydrolysates, by applying the response surface methodology (RSM) analysis. Then the bioconversion of undetoxified hydrolysates was investigated. A fed-batch process for the fermentation of A. donax hydrolysates was finally implemented in a 2-L bioreactor. Under optimized conditions, the total lipid content was 64% of the dry cell weight and the lipid yield was 63% of the theoretical. The fatty acid profile of C. curvatus triglycerides contained 27% palmitic acid, 33% oleic acid and 32% linoleic acid. These results proved the potential of lipid production from A. donax, which is particularly important for their consideration as substitutes for vegetable oils in many applications such as biodiesel or bioplastics.

DEVELOPING U-CITY MARKET SCENARIOS THROUGH A SCENARIO PLANNING APPROACH

  • Yong-Ho Kwon;Jae-Jun Kim;Suk-Hee Han;Jin-Sik Kim;Yoon-Sun Lee
    • 국제학술발표논문집
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    • The 2th International Conference on Construction Engineering and Project Management
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    • pp.459-468
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    • 2007
  • The u-City construction project has become a hot topic in the construction market because it seems economic value-added field for construction firms. However, construction firms don't willingly participate in the u-City construction market because environments of the future business for the u-City are very uncertain. Scenario planning is a very powerful method in managing this uncertain planning situation and is based on scenarios that help each enterprise appropriately adapt itself to its own business environments. Therefore it is based on the main principles of systems thinking and multiple futures. For the purpose of dealing with such uncertainties, this paper attempts to develop the possible market scenarios of the u-City construction market in S.Korea through a scenario planning approach. From this perspective, we considered various aspects of the u-City construction such as market demands, technology development, policy level and management environment. After considering the relevant issues, we identified the main trends and key uncertainties. Finally, we developed three coherent u-City construction market scenarios. Construction firms can use these scenarios as a basic reference for market analysis and business strategy. Therefore, this paper is able to enhance the participation of construction firms in the u-City construction market.

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낙동가 유역의 지속가능한 이용을 위한 EMERGY 분석 (EMERGY Analysis of Nakdong River Basin for Sustainable Use)

  • 김진이;손지호;김영진;이석모
    • 한국환경과학회지
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    • 제9권1호
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    • pp.49-55
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    • 2000
  • An EMERGY analysis of the main energy flows driving the economy of humans and life support systems consists of environmental energies, fuels, and imports, all expresses as solar emjoules. Total EMERGY use(720.0 E20 sej/yr) of the Nakdong River Basin is 96 per cent from imported sources, fuels and goods and services. EMERGY flows from the environment such as rain and geological uplift flux accounted for only 4 percent of total EMERGY use. Consequently, the ratio of outside investment to attracting natural resources was large, like other industrialized areas. EMERGY use per person in the Nakdong River Basin indicates a moderate EMERGY standard of living, even though the indigenous resources are very poor. Population of 6.66 million people in 1996 is already in excess of carrying capacity of the basin. Carrying capacity for steady state based on its renewable sources in only 0.226 million people. EMERGY yield ratio and environment loading ratio were 1.07 and 28.52, respectively. EMERGY sustainability index, a ratio of EMERGY yield ratio to environment loading ratio, is therefore less than one, which is indicative of highly developed consumer oriented economies. This study suggests that the economic structure of the Nakdong River Basin should be transformed from the present industrial structure to the social-economic structure based on an ecological-recycling concept for the sustainable use of the Nakdong River.

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빅데이터를 활용한 폐교시설의 지표 개발에 관한 연구 -텍스트마이닝 기법을 중심으로- (A Study on the Development of the Use Index of Closed School Facilities Using Big Data -Focused on Text-Mining Techniques-)

  • 김재영;이종국
    • 교육녹색환경연구
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    • 제18권2호
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    • pp.1-11
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    • 2019
  • 본 연구는 지속적으로 증가가 예상되는 폐교시설의 효율적인 활용을 위하여 활용지표의 개발을 통해 폐교 활용 시 객관적인 의사결정을 위한 목적을 가진다. 연구 단계는 크게 폐교 활용 예비지표 도출, 빅데이터를 활용한 최종지표 도출, 지표의 정량화 단계로 구분하여 진행하였으며, 최종적으로 지표를 정량화함으로써 객관화하였다. 향후 지표를 기준으로 시설에 적용 및 검증하고자 한다. 본 연구는 지금까지 폐교시설의 활용을 위한 계획 및 연구에 있어서 시도되지 않았던 빅데이터 분석기법을 적용한 것에 그 의의가 있다.

MZ 세대의 디지털 결제 서비스의 결정요인 (How to Foster Digital Payment Service for Millennials and Generation Z?)

  • 조윤정;오상균
    • 디지털산업정보학회논문지
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    • 제19권3호
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    • pp.45-60
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    • 2023
  • The purpose of this study is to explore factors that affect millennials and generation Z customers' perception on intention to recommend to use the digital payment services and invesetigate factors that affect perception on sustainable growth of the digital payment services. This study applied the following research questions: i) how perceived brand value, easy to use, personalization, open to public, and social value affect intention to recommend to use the digital payment services and ii) how perceived public policy, promotional strategy, and prspects affect intention to recommend to use the digital payment services to others. This study conducted an online survey. This study applied factor, ANOVA, and regression analysis to test hypotheses. The results of this study found that effects of personalization, open to public, and social value on intention to recommend the service showed significance in the case of millennials, while effects of brand value, easy to use, and open to publis on intention to recommend the service showed significance in the case of generation Z. The results provide managerial and policy implications on how to apply better strategies and pepare policies to enhance adoption of the digital payment service in cases of millennials and generation Z.

시스템 생태학적 접근법에 의한 한국의 지속적인 발전가능성 평가(I)-한국의 자연환경과 경제활동에 대한 EMERGY 평가- (Evaluation of Korea`s Sustainable Development by the System Ecology(I)-EMERGY Analysis of Korea`s Natural Environment and Economic Activity-)

  • 이석모;손지호;강대석
    • 한국환경과학회지
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    • 제9권6호
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    • pp.449-454
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    • 2000
  • Sustainable development has been the key concept, both in economic policies and in environmental management. On the basis of an systems ecology perspective, this suggests the sustainable development of Korea\`s natural environment and economic activity using the EMERGY evaluation. The total EMERGY use(7,730E20sej/yr) in Korea is 81 percent from imported sources, fuels and goods and services. The ratio of outside investment to attracting natural resources is already large, like other industrialized countries. Continued availability of purchased inputs at a favorable balance of EMERGY trade, currently about 2.85 to 1 net EMERGY, tis the basis for present economic activity and must decrease as the net EMERGY of purchased inputs including fossil fuels goes down. EMERGY yield ratio and environmental loading ratio were 1.23 and 20.30, respectively. The population level is already in excess of carrying capacity. Its carrying capacity for steady state on its renewable sources is only 2.2 million people, compared to 45.9 million in 1977. EMERGY sustainability index is therefore less than one, which is indicative of highly developed consumer oriented economies. Until now the development of a country has been achieved by the economic growth, but it can be sustained in the long run by the use of renewable resource systems. the efficiency of energy usage, and the transformation of the social-economic structure based on an ecological-recycling concept.

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