• Title/Summary/Keyword: Environment Evaluation

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Using Support Vector Machine Method to Improve Company Performance Management

  • Yuanhao LI;Xin LI;Han XIA
    • Asian Journal of Business Environment
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    • v.13 no.4
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    • pp.1-6
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    • 2023
  • Purpose: To explore the application prospect of support vector machine (SVM) in supply chain management and its practical application in supply chain performance evaluation practice. Research design, data and methodology: This paper establishes the performance evaluation index system of supply chain management according to the balanced scorecard (BSC) theory, and establishes the SVM model of supply chain management performance evaluation based on the SVM principle. Results: The performance evaluation results of the supply chain of an electric power equipment Co., Ltd. in Harbin established by using the model are consistent with the actual situation, which indicates the nature and accuracy of the possible reflection of the established supply chain performance evaluation model. Conclusions: The results show that SVM model can be used to evaluate enterprise supply chain management performance indicators, and can improve enterprise supply chain management performance, thus demonstrating the effectiveness of the model.

A Study on the Variation of Water Quality and the Evaluation of Target Water Quality Using LDC in Major Tributaries of Nakdong River Basin (낙동강수계 주요 지류의 수질특성변화 및 LDC를 이용한 목표수질 평가에 관한 연구)

  • Lee, Sangsoo;Kang, Junmo;Park, Hyerim;Kang, Jeonghun;Kim, Shin;Kim, Jin-pil;Kim, Gyeonghoon
    • Journal of Korean Society on Water Environment
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    • v.36 no.6
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    • pp.521-534
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    • 2020
  • In this study, the variation of water quality was analyzed for six sites in major tributaries of the Nakdong River Basin. Standard-FDC (Flow Duration Curve) was developed using PM (Percentile Method), one of the statistical FDC estimation methods. The LDC (Load Duration Curve) was obtained using the developed FDC. The current method and the LDC evaluation method were compared and analyzed to evaluate the achievement of TWQ (Target Water Quality). Regarding the monthly flow rate variation, the five sites showed the distribution of the lowest flow rate between May and June, indicating a high probability of dry weathering of the streams. The variation of water quality confirmed the vulnerable timing of flow rate in each site, and it is therefore deemed necessary to plan to reduce T-P and TOC. A comparison and evaluation of TWQ showed that there was a difference between the TWQ values achieved by the two techniques. In addition, the margin ratio to the 50% excess ratio can be found in the LDC evaluation. The results of the LDC evaluation by section and by month showed whether or not the water quality was exceeded by flow conditions, along with the vulnerable sections and timing. Accordingly, it is judged that this method can be used for water quality management in TMDLs (Total Maximum Daily Loads).

Review on Water Quality and Achievement of Water Quality Goal by Various Evaluation Methods in Geum River (다양한 평가기법을 이용한 금강 대권역의 수질 및 목표수질기준 달성도 평가)

  • Lee, Jae-Woon;Jeong, Hye-Sung;Yoon, Jung-Hee;Cheon, Se-Uk
    • Journal of Environmental Impact Assessment
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    • v.17 no.6
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    • pp.373-380
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    • 2008
  • The Ministry of Environment plans to improve quality of water which is achieved over 85% in rivers and 94% in lakes of the whole country as "Good Water" until 2015. Also, the law of evaluation of water quality and water quality goal were made newly. So, the water quality has evaluated by using new law since 2007. This study evaluated whether "Good Water" and" Water Quality Goal" were achieved or not in 22 middle-sized districts and major 10 lakes of Geum river. The achievement rates of rivers decreased and the achievement rates of lakes mostly were the same for 5 years. In 2007, the achievement rates of "Good Water" were 50% in rivers and 50% in lakes. The achievement rate of "Water Quality Goal" were 59.1% in rivers and 20% in lakes. The water quality in 2007 was evaluated worse than last year in case of rivers. The evaluations of Korea-Comprehensive Water Quality Index(K-CWQI) showed that achievement rates of "Water Quality Goal" were 81.8% in rivers and 0% in lakes. The statistical correlation analysis showed that correlations between BOD and COD were meaningful at the downstream, compared to upstream, generally. In case of lakes, correlations between COD and temperature were meaningful. Also, correlations between COD and Chl-a were meaningful. The Trophic State Index ($TSI_{KO}$) showed that the half of lakes are major over eutrophic status in lakes. These analytical methods such as K-CWQI, $TSI_{KO}$, statistical correlation analysis could be additionally helpful for evaluation of water quality and provide basis data for understanding characteristics of watershed in Geum river.

A Study on Extraction of Factors and Evaluation of Satisfaction on the Visual Environment of an Urbanized Area in a Local City - Focused on Nohyung Area, Jeju-Do - (지방도시의 도심지역에 있어서 시환경 만족도 평가 및 요인추출에 관한 연구 - 제주도 노형 일대를 중심으로-)

  • Byun, Kyeong Hwa
    • Journal of the Korean Institute of Rural Architecture
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    • v.14 no.3
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    • pp.85-92
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    • 2012
  • This study aims to evaluate the residential exterior environment and ascertain the factors having an effect on the visual environment viewed through the living room window. This study is based on a questionnaire on the exterior environment targeting residents living in the area of Nohyunng in Jeju city, Jeju-do. The results are as follows. First, residents are satisfied with the exterior environment as a whole; however, the longer-term residents' level of satisfaction is found to be relatively low while dissatisfaction is high. Additionally, there is a difference in satisfaction and dissatisfaction levels between the residents in their own housing and those in rental housing. The residents living in rental housing were found to have a relatively low level of satisfaction and high dissatisfaction. Second, in the case where the living room window faces roads, low satisfaction and high dissatisfaction levels with the visual environment were found, where the living room is on the first or second floor. Third, satisfaction and dissatisfaction with the exterior environment have a close correlation to the impression or nature elements of 26 questions but they show low correlation in size, height, color, design, traffic, artifact elements. Finally, as a result of extracting the factors influencing satisfaction and dissatisfaction with the visual environment, four factors were extracted including "Impression & Nature factor", "Building factor", "Design factor", and "Traffic volume & Artifacts factor". "Impression & Nature factors" is the most influencing factor with satisfaction and dissatisfaction and "Traffic volume & Artifacts factor" was found to have an effect on satisfaction, but not as clearly on dissatisfaction.

Sustainability Evaluation for Shellfish Production in Gamak Bay Based on the Systems Ecology 2. Environmental Accounting for the Improvement of the Natural Environment Based on the Emergy Evaluation (시스템 생태학적 접근법에 의한 가막만 패류생산의 지속성평가 2. 가막만 환경개선에 관한 환경회계)

  • Oh, Hyun-Taik;Lee, Suk-MO;Lee, Won-Chan;Jung, Rae-Hong;Hong, Suk-Jin;Kim, Nam-Kook;Tilburg, Charles
    • Journal of Environmental Science International
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    • v.17 no.8
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    • pp.857-869
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    • 2008
  • The objective of this research is to apply more scientific, quantitative methods and procedures of environmental investigation to the development of the natural environment and the improvement of the human environment during the establishment of a sewage treatment plant and special facilities using environmental accounting. This research was performed to develop a method of strategic environmental assessment on the operation of sewage treatment plant and reuse of shellfish seeding areas through the use of environmental accounting based on EMERGY evaluation. The result was applied to marine environment policy in order to evaluate the real wealth of the regional environment and economy for both the present phase and the proposed developed phase. Using results from the comparison of EMERGY indices between the present situation and future scenarios, cost benefit analysis was performed for three different scenarios: (I) construction of a new sewage treatment plant, (2) relocation and recovery of the shellfish seeding area, and (3) relocation and re-seeding of shellfish area and construction of a new sewage treatment plant. Cost-benefit ratios of the three scenarios are 1.88, 0.94, and 1.38, respectively.

Characteristics Analysis of Evaluation Measures and Submission Requirements of Sustainable Design Awards -Comparison between AIA COTE Top 10 and Korea Green Building Awards- (완공작 친환경 건축물 공모전의 평가기준 및 제출요구자료 특성 분석 - AIA COTE TOP 10 공모전과 녹색건축대전의 비교를 중심으로 -)

  • Kim, Jin-Ho;Lee, Do-Gyun
    • KIEAE Journal
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    • v.17 no.3
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    • pp.59-67
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    • 2017
  • Purpose: As we are facing the global crisis from the climate change and energy depletion, urgent actions are needed to design a integrated sustainable building. This paper suggests that a sustainable design awards can stimulate for architects to bring the cutting-edge ideas into a realized building in comparison to green building certification system. AIA COTE Top 10 design awards, organized and run by AIA(American Institute of Architects) COTE(Committee on the Environment) from 1997, is analyzed as a case study. By researching the core of the AIA COTE Top 10 design awards system in terms of evaluation measures and submission requirements, meaningful suggestions were drawn to supplement Korea Green Building Awards system and to design and realize leading green buildings in Korea. Method: The comparison between AIA COTE Top 10 and Korea Green Building Design Awards was made in terms of evaluation measures, submission requirements, and green building certification systems. Result: This paper finally suggests the following three points in conclusion: 1) Set the standards of evaluation measures reflecting the three aspects(economy, environment, social) of sustainability, 2) Set the qualitative evaluation measures and corresponding submission requirements that can apply in the design awards in comparison to green building certification system, 3) Develop and balance submission requirements in response to evaluation measures to proceed systematic evaluation of the green buildings.

River Embankment Integrity Evaluation using Numerical Analysis (수치해석을 이용한 하천제방의 건전도 평가)

  • Byun, Yo-Seph;Jung, Hyuk-Sang;Kim, Jin-Man;Choi, Bong-Hyuck;Kim, Kyung-Min;Chun, Byung-Sik
    • Proceedings of the Korean Geotechical Society Conference
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    • 2009.09a
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    • pp.524-528
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    • 2009
  • An influence factors for soundness evaluation of river levee include resistibility and embankment for piping of ground consisting embankment in case piping, permeability coefficient of ground, height of embankment, the width of crest, material characteristics of embankment and foundation ground, shape of embankment slope, an influence for penetration of rainfall or river water in case slope stability. In this study, it was operated a feasibility investigation of existing design result, stability evaluation for permeability coefficient use and permeability coefficient change of foundation ground to investigate an influence in line with permeability coefficient change for result of river levee penetration analysis. The evaluation results of influence factors, the permeability coefficient used in design and it was evaluated influence in safety factor of piping. After the evaluation of influence factors, the permeability coefficient used in the design appears with the fact that differs in a design report about same soil, Accordingly, the stability investigation of embankment by application of literature data can affect stability evaluation results by change factors like a permeability coefficient, void ratio. It should be certainly used material properties by a test in soundness evaluation of river levee.

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A Study on Developing the Evaluation Items for the Green Libraries Certification (녹색도서관 인증을 위한 평가항목 개발에 관한 연구)

  • Noh, Younghee
    • Journal of the Korean Society for information Management
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    • v.32 no.3
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    • pp.99-130
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    • 2015
  • This study was conducted to develop and propose the evaluation indicators to evaluate the eco-friendliness of the library, when certified as the eco-friendly Green Libraries. To do this, we extracted the green library components through an analysis of the green library literatures and case studies, and surveyed the perceptions of the library staffs about the assessment factors. Finally, we developed the green library evaluation index with 11 evaluation areas, 31 evaluation items, and 135 evaluation indicators. The 11 evaluation areas are as follows; Land use and transportation, energy and environmental protection, materials and resources, water cycle management, maintenance management, ecological environment, the indoor environment, the library resources, the eco-education programs and campaigns, the staff and operations, and the computerization.

Characterization of Test Substance in the GLP (GLP 시험에서의 시험물질 특성파악)

  • Lee, Eun-Jung;Song, Kyung-Seuk;Yu, Il-Je
    • Toxicological Research
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    • v.23 no.2
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    • pp.173-177
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    • 2007
  • The GLP contains specific language concerning characterization of the test, control and reference substances used in toxicity studies. This paper will describe and discuss what types of documents are required to support test/reference substance characterization under GLP system. The purpose of this article is to present an overview of data needed in the characterization package that will adequately define the substance. Most sponsors use a certificate of analysis (COA) to communicate the test sub-stance characterization status information to the contracting research organizations. The COA should provide the test $material^{\circ}{\phi}s$ characterization results, substance storage requirements, expiration dates, verification of the collection of the retention sample, archival location of the data to support the characterization and GLP compliance status of the characterization.

Development of An Integrated Test Facility (ITF) for the Advanced Man Machine Interface Evaluation

  • Oh, In-Seok;Cha, Kyung-Ho;Lee, Hyun-Chul;Sim, Bong-Sick
    • Proceedings of the Korean Nuclear Society Conference
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    • 1995.10a
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    • pp.117-122
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    • 1995
  • An Integrated Test Facility(ITF) is a human factors experimental environment to evaluate an advanced man machine interface(MMI) design. The ITF includes a human machine simulator(HMS) comprised of a nuclear power plant function simulator, man-machine interface, experiment control station for the experiment control and design, human behavioural data measurement system, and data analysis and experiment evaluation supporting system(DAEXESS). The most important features of ITF is to secure the flexibility and expandibility of Man Machine Interlace(MMI) design to change easily the environment of experiments to accomplish the experiment's objects In this paper, we describe a development scope and characteristics of the ITF such as, hardware and software development scope and characteristics, system thermohydraulic modelling characteristics, and experiment station characteristics for the experiment variables design and control, to be used as an experiment environment for the evaluation of VDU-based control room.

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