• Title/Summary/Keyword: assessment procedure

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Resource Assessment and Engineering Design for Wind Energy Development (풍력에너지 개발을 위한 자원평가 및 엔지니어링 설계)

  • Kim, Seong-Kook
    • Journal of the Korean Professional Engineers Association
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    • v.42 no.1
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    • pp.49-53
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    • 2009
  • Wind energy development and wind farm construction request multi-disciplinary study and coordination to pursuit economically and technically feasible project that may deliver a viable business model. This paper is to provide the study and coordination procedure with key management factors about the wind energy resource assessment and engineering design for EPC(Engineering, Procurement and Construction) contract for the successful business development.

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Real-time Stability Assessment and Energy Margin Estimation using Fuzzy (퍼지를 이용한 실시간 안정도 판별과 에너지 마진의 추정)

  • Choi, Won-Chan;Kim, Soo-Nam;You, Seok-Ku
    • Proceedings of the KIEE Conference
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    • 1999.07c
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    • pp.1239-1241
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    • 1999
  • In this paper, we propose real time transient stability assessment and energy margin estimation using fuzzy approximate reasoning. The proposed method used rotor angle, kinetic energy and acceleration power of generators at clearing time as fuzzy input. In order to calculate energy margin in transient energy function (TEF), we obtained controlling unstable equilibrium point (UEP) using mode of disturbance procedure (MOD). The proposed algorithm is tested on 4-machine, 6-bus, 7-line power system to prove of effectiveness.

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제7차 교육과정을 회상하여 바람직한 수학교육 교수-학습의 고찰

  • Cho, Yong-Uk
    • East Asian mathematical journal
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    • v.23 no.3
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    • pp.361-370
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    • 2007
  • The notion of problem-solving in mathematics education effects mathematics teachers notice and its importance in mathematics is getting better. The purpose of this thesis is to consider the mathematical reasoning for improving the ability of problem solving. It is necessary that notion, enforcement method, procedure and evaluation standard of performance assessment should be explained to students. The teachers, improvements of specialty for class and evaluation as well as systematic reeducation for performance assessment are essential.

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Site-Level Assessment of Other Effective Area-based Conservation Measures - Focusing on the Korea National Arboretum - (기타 효과적인 지역 기반 보전 수단(OECMs)의 개별 평가 - 국립수목원을 중심으로 -)

  • Shim, Yun-Jin;Sung, Jung-Won;Lee, Kyeong-Cheol;Kweon, Hyeong-Keun;An, Jong-Bin
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.26 no.2
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    • pp.1-11
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    • 2023
  • By delivering effective, in-situ conservation of biodiversity, OECMs can contribute to sustaining existing biodiversity values and improving biodiversity conservation outcomes. In this study, for the reporting of OECMs required by Kunming-Montreal Global Biodiversity Framework, the site-level assessment of the Korea National Arboretum and Buffer Zones were conducted using the assessment tool of IUCN. The site-level assessment was carried out in three steps(step 1: screening, step 2 : consent for full assessment, step 3 : the full assessment). It was found that the criteria were satisfied except for the consent for full assessment, sustainability of governance and management arrangements, and the equity of governance and management. Although the governing authority, rights-holders or any other stakeholders could be identified, the step of acknowledging and agreeing to the full OECM assessment was not possible because the governance was not established. As a result of the assessment of equitable governance and management in the aspect of recognition, procedure, and distribution based on criterion(the equity of governance and management), it is judged that more specific measures are needed in the aspect of recognition. And in the aspect of procedure, there is no legal basis for participation in governance and collection of opinions, so it is judged that there is a limit to listening and reflecting the opinions of stakeholders. In the aspect of distribution, it is necessary to further confirm whether it provides direct benefits to rights-holders such as landowners in the region. And it is necessary to prepare specific criteria to assess the important biodiversity values. Therefore, in order to promote OECM reporting in the future, it is necessary to conduct detailed research on various types of governance establishment and operation plans that can establish the basis for recognizing and agreeing to OECM assessment, specific criteria and reasonable measures to judge equity, and important biodiversity value.

A Study on the Alternative Environmental Assessment System in KOREA : Applying New Conceptual Model(APEMI IA MODEL) into Impact Assessment for Better Integrated Decision-Making (대안적 환경평가 시스템 연구: 통합적 의사결정을 위한 새로운 개념의 영향평가모형(APEMI IA MODEL)의 국내 적용방안 탐색)

  • Kim, Im Soon;Han, Sang Wook
    • Journal of Environmental Impact Assessment
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    • v.14 no.4
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    • pp.179-193
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    • 2005
  • As the world's attention turns to sustainability and the considerations of cumulative effects, the concept of Strategic Environmental Assessment(SEA) has become more significant and urgent and increasing number of countries and international organizations now undertake some forms of SEA. The term SEA, however, is variously defined and understood; generally it means a formal process of systematic analysis of the environmental effects on development policies, plans, programmes and other proposed strategic actions. This process extends the aims and principles of EIA upstream in the decision-making process, beyond the project level in which major alternatives are still open. There is a shift toward more integrative approaches and greater use of Environmental Impact Assessment (EIA) and Strategic Environmental Assessment (SEA) as sustainability tools in cooperation with Environmental Management System (EMS). Currently, Korea has EIA system and Prior Environmental Review System (PERS) which is different type of SEA as Environment Assessment (EA) system. APEMI IA MODEL integrated following three pillar(refer to attached figure.1) ; First pillar symbolized decision making cycle with planning process. Second pillar symbolized integrated assessment which tying SEA and EIA with specific impacts assessment(eg: social impact assessment, economic impact assessment, health impact assessment etc) in cooperation with EMS. Third pillar symbolized EA best practical procedure of International Association for Impact Assessment(IAIA). Considering the above, we applied new conceptual model(APEMI IA MODEL) into Impact Assessment for better integrated decision-making in KOREA as an alternative IA system(IS IA MODEL A and B refer to attached figure 4, 5).

Environmental Impacts Assessment of the Wheat Flour Production Process Using the Life Cycle Assessment Method (LCA 기법을 이용한 소맥분 생산 공정의 환경 영향 평가)

  • Chu, Duk-Sung;Kwon, Hyuk-Ku;Kim, Jong-Geu;Lee, Jang-Hoon
    • Journal of Environmental Health Sciences
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    • v.34 no.1
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    • pp.62-69
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    • 2008
  • The life cycle assessment method for environmental impact assessment was used, in this study, to assess the production process of wheat flour which is the most important material in the food industry. Environmental impact assessments were compared between that of the Ministry of Environment, Republic of Korea (method I) with that of the Ministry of Commerce, Industry and Energy (method II). Life cycle inventories (LCI) was performed using internal and external databases and the production statistics database of company S. The procedure of life cycle impact assessment (LCIA) was followed in terms of classification, characterization, normalization and weighting to identify the key issues. The impact categories of method I were divided into 8 categories with consideration of : abiotic resources depletion, global warming, ozone depletion, photochemical oxidant creation, acidification and eutrophication. The impact categories of method II were divided into 10 categories with consideration of: abiotic resources depletion, global warming, ozone depletion, photochemical oxidant creation, acidification, eutrophication, human toxicity, freshwater aquatic ecotoxicity, marine aquatic ecotoxicity and terrestrial ecotoxicity.

A Study on the Collecting Method of Reliability Database for Gas Facilities (가스설비의 신뢰도데이터 수집방법에 관한 연구)

  • Rhie, Kwang-Won;Yoon, Ik-Keun;Han, Sang-Tae;Oh, Sin-Kyu;Kim, Tae-Hun
    • Journal of the Korean Society of Safety
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    • v.23 no.2
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    • pp.37-44
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    • 2008
  • The safety assessment for facility industry is now being periodically performed. For the purpose of scientific safety management, QRA(Quantitative Risk Assessment) is also being performed, and reliability data of the facilities is essential to perform the assessment. Generally, the existing safety assessment is performed by using the values announced in other industry processes, which result in the drop of reliability. In order to solve this problem, there is an urgent need to establish reliability database for the facilities. The most appropriate method is to perform a direct reliability analysis towards the facilities undergoing safety assessment. In this study, in compliance with the assessment method and procedure of OREDA-2002 handbook, the facility reliability data are collected, which include the calendar time and operational time in terms of different facility items, the number of failures in terms of different failure mode, the mean, standard deviation, lower limit and upper limit of failure rate, and the failure rate. And the data process method for this special occasion is also proposed when the number of failure is 0.

An Assessment of Electric Shock Hazard by Safety Criteria Using Graphical Method (그래프법을 이용한 안전기준에 의한 감전위험성 평가)

  • 김두현;강동규
    • Journal of the Korean Society of Safety
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    • v.16 no.3
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    • pp.53-60
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    • 2001
  • This paper presents a graphical method for hazard assessment of electric shock by safety criteria. For the human body to be safety actual body current should not exceed safety criteria, i.e. allowable body current. The assessment method presented in this paper is based m the safety criteria of the IEEE Standard 80 as well as the IEC 479-1. The hazard can be assessed in terms of alterable touch voltages instead of alterable body current. Thus, the hazard assessment of given electric shock condition is referred to a procedure by which the actual touch voltages are compared with the allowable (safe) touch voltages. Since the IEC 479-1 safety criteria are nonlinear, the graphical method is presented for the hazard assessment. Body current and body voltage are calculated with the allowable touch voltage. A comparison of the safety criteria of two widely accepted standards, i.e. the IEEE Std 80 End the IEC 479-1 is proposed. Also Thevenin equivalent resistance is obtained from electric shock model expressed by two-port earth-grid-foot system. On the basis of calculated results, the allowable touch voltage, the body current and the body voltage we can conduct the hazard or safety assessment and estimate the severity of electric shock.

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The Investigation of the Mathematics Teaching Evaluation Standards Focused on Mathematical Competencies in the revised mathematics curriculum in 2022 (2022 개정 수학과 교육과정의 역량을 반영한 수업평가 기준 탐색 - '교수·학습 방법 및 평가' 지식을 중심으로-)

  • Hwang, Hye Jeang
    • East Asian mathematical journal
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    • v.40 no.2
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    • pp.149-166
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    • 2024
  • This study is to establish the domains and the standards of instructional evaluation on the teacher knowledge dealing with the knowledge of 'teaching and learning methods and assessment'. Especially, in this study, the instruction assessment standards are developed focused on the five types of mathematics competencies such as problem solving, communication, reasoning, connection, information and handling, which were emphasized in the mathematical curriculum revised in 2022. By the result, ten domains such as an instruction involving instruction goal and content, problem-solving competency, data treatment competency, learners' achievement level and attitude, communication competency, reasoning competency, connection competency, the assessment method and procedure based on the competency, the assessment tool development based on the competency, assessment result based on the competency were new established. According to those domains, the total 20 instructional evaluation standards were developed. This study is limited to consider the domain of 'teaching and learning methods and assessment' among the domains of teacher knowledge, while dealing with the elements of mathematics competencies in the standards. However, instructional evaluation standards reflecting these competencies should be developed in the other diverse domains of teacher knowledge.

An Application of Probabilistic Environmental Risk Assessment for An Incineration Facility (소각설비에 대한 확률론적 환경위험성 평가 적용)

  • Kim, Young Jae;Jang, E.J.;Ahn, K.S.
    • Journal of Environmental Impact Assessment
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    • v.13 no.1
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    • pp.1-8
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    • 2004
  • A wide spectrum of risk assessments including qualitative and quantitative approaches and the analyses of its consequence were performed for an environmentally sensitive object such as incineration facility. To find out the major risk concerns, HAZOP(Hazard and Operability) were performed. Then, the frequency of hazardous gas release scenarios was calculated. Finally consequence analyses were performed for the gas release scenarios. On the basis of analyses through evaluation, a more innovative way for making a better control system or the enhancement of operation procedure was given. The results from these analyses would act as a substantial benefits for the incineration facility operator, and giving some measured information for the neighbors and the people involved.