• Title/Summary/Keyword: public operating system

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Integrated Eco-Engineering Design for Sustainable Management of Fecal Sludge and Domestic Wastewater

  • Koottatep, Thammarat;Polprasert, Chongrak;Laugesen, Carsten H.
    • Journal of Wetlands Research
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    • v.9 no.1
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    • pp.69-78
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    • 2007
  • Constructed wetlands and other aquatic systems have been successfully used for waste and wastewater treatment in either temperate or tropical regions. To treat waste or wastewater in a sustainable manner, the integrated eco-engineering designs are explained in this paper with 2 case studies: (i) a combination of vertical-flow constructed wetland (CW) with plant irrigation systemfor fecal sludge management and (ii) integrated CW units with landscaping at full-scale application for domestic wastewater treatment. The pilot-scale study of fecal sludge management employed 3 vertical-flow CW units, each with a dimension of $5{\times}5{\times}0.65m$ (width ${\times}$ length ${\times}$ media depth) and planted with cattails (Typha augustifolia). At the solid loading rate of 250 kg total solids (TS)/$m^2.yr$ and a 6-day percolate impoundment, the CW system could achieve chemical oxygen demand (COD), TS and total Kjeldahl nitrogen (TKN) removal efficiencies in the range of 80 - 96%. The accumulated sludge layers of about 80 - 90 cm was found at the CW bed surface after operating the CW units for 7 years, but no clogging problem has been observed. The CW percolate was applied to 16 irrigation Sunflower plant (Helianthus annuus) plots, each with a dimension of $4.5{\times}4.5m$ ($width{\times}length$). In the study, the CW percolate were fed to the treatment plots at the application rate of 7.5 mm/day but the percolate was mixed with tap water at different ratio of 20%, 80% and 100%. Based on a 1-year data of 3-crop plantation were experimented, the contents of Zn, Mn and Cu in soil of the experimental plots were found to increase with increasing in CW percolate ratios. The highest plant biomass yield and oil content of 1,000 kg/ha and 35%, respectively, were obtained from the plots fed with 20% or 50% of the CW percolate, whereas no accumulation of heavy metals in the plant tissues (i.e. leaves, stems and flowers) of the sunflower is found. In addition to the pilot-scale and field experiments, a case study of the integrated CW systems for wastewater treatment at Phi Phi Island (a Tsunami-hit area), Krabi province, Thailand is illustrated. The $5,200-m^2$ CW systems on Phi Phi Island are not only for treatment of $400m^3/day$ wastewater from hotels, households or other domestic activities, but also incorporating public consultation in the design processes, resulting in introducing the aesthetic landscaping as well as reusing of the treated effluent for irrigating green areas on the Island.

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A Study on the Applicability of IoT for Container Terminal (컨테이너 터미널의 사물인터넷(IoT) 적용가능성에 관한 연구)

  • Jeon, Sang-Hyeon;Kang, Dal-Won;Min, Se-Hong;Kim, Si-Hyun
    • Journal of Korea Port Economic Association
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    • v.36 no.2
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    • pp.1-18
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    • 2020
  • The Internet of things (IoT) has been applied to a variety of industrial uses such as public service sectors, medical industries, automotive industries, and so on. Led by smart cities, this is typical. However, from a logistics perspective, the level of application is insufficient. This study examines the applicability of IoT-related technology in a container terminal, an object of the present invention, to derive an applicable plan. Analytic network process (ANP) analysis reveals the following results for IoT applications in container terminals: operating systems (26.7%), safety/environmental/security systems (26.4%), equipment maintenance systems (25.3%), and facility maintenance systems (21.6 %). The second ANP analysis reveals the following results: Economy (40.2%), productivity (21.1%), service level (19.5%), and utilizing technology level (19.2%). The application or standard of evaluation is important when applying IoT technology to container terminals; however, it is not concentrated in a certain area. It is desirable to build each container system with linkage and efficiency from a macroscopic view.

Designing the Optimal Urban Distribution Network using GIS : Case of Milk Industry in Ulaanbaatar Mongolia (GIS를 이용한 최적 도심 유통 네트워크 설계 : 몽골 울란바타르 내 우유 산업 사례)

  • Enkhtuya, Daariimaa;Shin, KwangSup
    • The Journal of Bigdata
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    • v.4 no.2
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    • pp.159-173
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    • 2019
  • Last-Mile delivery optimization plays a key role in the urban supply chain operation, which is the most expensive and time-consuming and most complicated part of the whole delivery process. The urban consolidation center (UCC) is regarded as a significant asset for supporting customer demand in the last-mile delivery service. It is the key benefit of UCC to improve the load balance of vehicles and to reduce the total traveling distance by finding the better route with the well-organized multi-leg vehicle journey in the urban area. This paper presents the model using multiple scenario analysis integrated with mathematical optimization techniques using Geographic Information System (GIS). The model aims to find the best solution for the distribution network consisted of DC and UCC, which is applied to the case of Ulaanbaatar Mongolia. The proposed methodology integrates two sub-models, location-allocation model and vehicle routing problem. The multiple scenarios devised by selecting locations of UCC are compared considering the general performance and delivery patterns together. It has been adopted to make better decisions the quantitative metrics such as the economic value of capital cost, operating cost, and balance of using available resources. The result of this research may help the manager or public authorities who should design the distribution network for the last mile delivery service optimization using UCC within the urban area.

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Analysing the Governance of Regional Policies in the UK: Collaborative Relationships between Stakeholders within the Cambridge Technopole (영국 케임브리지 지역혁신정책상의 거버넌스 구조: 혁신주체간 협력관계를 중심으로)

  • Choi, Young-Chool
    • Journal of the Economic Geographical Society of Korea
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    • v.9 no.1
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    • pp.61-80
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    • 2006
  • The Cambridge Technopole has been recognised as one of the leading clusters in the world, and as such it has been benchmarked by other countries and other regions within the UK. This paper aims to analyse the governance of regional policies in the UK, with particular reference to the relationships between stakeholders operating within the Cambridge Technopole. Major findings of the research are as follows: The central government in the UK has been playing important roles as a customer, regulator and supporter of knowledge sources; Regional innovation policies across central departments have been co-ordinated by the DTI, so that overlapping of policies can be prevented; The policies of individual departments relating to regional innovation are co-ordinated by Government Offices for the Region(GOs) in each region, so that departmental sectionalism can be avoided. At the regional level, the EEDA established in the eastern region of England to which the Cambridge Technopole belongs is in charge of implementing all innovation policies within the region in a consolidated way. Networking organisations such as Cambridge Networks (CN) facilitate knowledge exchange between stakeholders, contributing to the building of mutual trust and creating a high level of social capital essential for regional innovation; The system for commercialising university technology and knowledge has been well institutionalised.

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A Study on the Reestablishment of the Drone's Concept (드론 개념의 재정립에 관한 연구)

  • Lee, Seungyoung;Kang, Wook
    • Korean Security Journal
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    • no.58
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    • pp.35-58
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    • 2019
  • Drone was originally developed for air force aircraft or missile exercise shooting targets, and is being considered as the entire unmanned aircraft to the public. The core concept of a drone can be divided into 'unmanned' and 'aircraft'. However, there are many questions about whether the Fourth Industrial Revolution, expressed as a convergence scientific innovation, is appropriate at a time when smart cities are proposed as a concept of new urban spatial formation, and the role of self-driving vehicles, including drones, is being emphasized within the new urban integrated transport system. In this study, the concept of the existing drones was analyzed for the development process, definitions in each country's laws, and the results of the preceding research to present a concept suitable for future society and a unified term. It is not desirable to define a drone for the purpose of a country, an institution, or an operating entity, depending on the circumstances of the era. It is more reasonable to find the concept of a drone based on human life than in the traditional way, and more reasonable considering the development of the drones in the future. Subsequent studies should be more detailed, more data and research results analyzed, and discussed areas that were not covered in this study. Based on this, research should also be conducted on a variety of topics, including legislation, preparation of operational regulations, and related industrial processes and regulations.

NCS-based Education & Training and Qualification Proposal for Work-Learning Parallel Companies Introducing Smart Manufacturing Technology (스마트 제조기술을 도입하는 일학습병행 학습기업을 위한 NCS 기반 교육훈련 및 자격 제안)

  • Choi, Hwan Young
    • Journal of Practical Engineering Education
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    • v.12 no.1
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    • pp.117-125
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    • 2020
  • According to the government's smart factory promotion project for small and medium-sized enterprises, more than 10,000 intelligent factories are scheduled or already built in the country and the government-led goal is to nurture 100,000 skilled workers by 2022. Smart Factory introduces numerous types of education and training courses from the supplier's point of view, such as training institutions belonging to local governments, some universities, and public organizations, in the form of an efficient resource management system and ICT technology convergence in the automated manufacturing equipment. The lack of linkage with the NCS, the standard for training, seems to have room for rethinking and direction. Results of survey is provided for the family companies of K-University in the metropolitan area and Chungnam area, and analyzes job demands by identifying whether or not they want to introduce smart factories. Defining the practitioners who will serve as a window for the introduction of smart factory technology within the company, setting up a training goal in consideration of the career path, and including the level of training required competency units, optional competency units, and training time suitable for introducing and operating smart factories. Author would like to present an NCS-based qualification design plan.

A Study on Regionalization of Telemedicine in Japan : A Case of the Kagawa Prefecture (일본 원격진료의 지역화 형성 및 특성에 관한 연구 : 카가와현(香川県)을 통한 지방의 원격진료 사례를 중심으로)

  • Park, Soo-Kyung
    • Journal of the Korean Geographical Society
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    • v.46 no.4
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    • pp.501-517
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    • 2011
  • This research investigates a geographical issue as to which factor discovered in the only Japanese telemedicine with regard to social and medical circumstances performs a role as a determinant in regionalization, especially, local areas in Japan. According to the results, strong human networks based on regionalism are mirrored in regionalization and are associated with not only the development and management of telemedicine operations, but also the choice of telemedicine users concretely. In other words, all processes from the suggestion stage of telemedicine to the practical usage or application stage of telemedicine are involved in the existing human networks within one prefecture (the third diagnostic area); further, personal stakes are transferred to public health care services (telemedicine) and their relationships have been formulated by the telemedicine council including local government, medical association, region-rooted companies, core health centers and universities, etc. Accordingly, the telemedicine council responses to the need of telemedicine users immediately and contributes to develop regional health care. Also, telemedicine users have been connected with each other closely before operating telemedicine; accordingly, the human relationships between doctors and patients or among doctors influence the choice of telemedicine serving sites and their behaviors comes down to regional-based diagnosis via the telemedicine system.

A Study on R&D Performance Analysis of Marine Technology (해양수산 연구개발사업 성과분석 연구)

  • Choi, Sang Sun;Oh, Inha;Lee, Dongmyeng
    • Journal of the Korean Society for Marine Environment & Energy
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    • v.19 no.2
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    • pp.165-171
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    • 2016
  • In this study, the characterization of projects and analysis of R&D products and commercialization performances were done to serve some implications on the policy decisions related to the commercialization of R&D in marine and fisheries sector. A total of 212 R&D projects with 144 ones for marine and 68 for fisheries performed for 5 years, from 2010 to 2014, were sorted and analyzed on the respect of government budget, main performing body, and research period. The R&D result and commercialization performance were substituted to quantitative indicators, such as the number of published papers, the number of patents, the amount of the technology royalty, the number of technology transfers, and the improvement of public service, which were subjects to be analysed. Based on the results, this study suggests the policy implications for the success of national R&D program; 1) diversifying the main performing body, 2) operating the system for sharing research infrastructures among researchers, 3) introducing the adaptable R&D program management, 4) expending the portion of grants without detailed requests for proposal, and 5) leaning the investigation of R&D budgets on projects focusing on the practicalization and commercialization.

Social Capital Formation Model in the Resident Participation Greening Projects - For the Greening Project of the Living Area in Seoul - (주민참여형 마을녹화사업의 사회적 자본 형성 모형 - 서울시 생활권녹화사업을 대상으로 -)

  • Lee, Ai-Ran;Cho, Se-Hwan
    • Ecology and Resilient Infrastructure
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    • v.5 no.1
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    • pp.35-44
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    • 2018
  • Social, economic and environmental problems caused by rapid urbanization have been recently overcome by various civic participation projects. Local governance and resident - led partnership through field - based cooperative operating systems from urban regeneration to village projects are considered success factors. Among these, the village greening project which directly affects the residents and requires spontaneity requires the role and cooperation of the various participating actors due to the sharing of public space and private space. Social capital plays a key role in the sustainability and participation of the above - mentioned business as a relational capital centered on trust and participation, network and norms. Therefore, empirical research is needed. In this study, basic research was carried out to build a formation model of social capital in participation - type greening project expanding urban green space system to living area. We analyzed the elements of participation, the components of business progress, and the factors of social capital formation through literature review and in - depth interviews with participating experts. The purpose of this study is to provide basic data of social capital formation model for analyzing sustainability and activation strategies in the future.

A Study on the Problems and New Strategy of the Development Policy for Under-developed Region: Focused on the Awareness of the Officials in Charge of Regional Development (낙후지역 개발정책의 문제점과 개선방향에 관한 연구: 지역개발담당 공무원의 인식도를 중심으로)

  • Lee, Byeong-Woo;Kim, Nam-Jung;Lee, Myoung-Gu
    • Land and Housing Review
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    • v.3 no.4
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    • pp.307-314
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    • 2012
  • This paper examines the characteristics and status of the major development policies for under-developed region by ministries and studies how the awareness or perspective of public officials on such policies impact the policy environment. This paper aims to redefine the goal and strategy of regional development policy so that it can effectively contribute to enhancing the quality of life of residents and improving competitiveness of the region. The problems and improvement direction found out through a documentational and practical research on the development policy for underdeveloped region can be summarized as follows: Firstly, more streamlined and integrated policies which are currently fragmented being implemented by different ministries are needed to enhance the effectiveness of policy execution. Secondly, improvements on the process of securing government funding and operating systems are needed to guarantee the rational standard of providing state subvention, the expansion of comprehensive subsidy and the independence of policy execution. Thirdly, amendments on the policy measures are needed to support the development and execution of the customized projects, strengthen cooperation among those projects by establishing a system for effective regional development project.