• Title/Summary/Keyword: Credibility assessment

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Research on the Structure and Application of Fuzzy Environmental Impact Assessment Model

  • Tien, Shiaw-Wen;Hsneh, Chia-Hsiang;Chung, Yi-Chan;Tsai, Chih-Hung;Yu, Yih-Huei
    • International Journal of Quality Innovation
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    • v.5 no.2
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    • pp.45-62
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    • 2004
  • Any business activities may have impact on environment to a certain extent. Enterprises must find appropriate approaches to measure the impact on these environmental aspects, which can be used as the basis to direct enterprises' efforts to improve the environmental impact. The method used to evaluate significant factors in life cycle assessment standards is the one most commonly used by enterprises in general to measure environmental impact. By this method, the decisive factors of each environmental aspect are given scores according to the preset scoring standard of the organization. The scores are added up for each aspect and ranked to assess major environmental aspects. The drawback of this assessment method, that is, it ignores the degree to which each of these factors affects the environment, results in poor credibility. Therefore, this study attempts to solve some qualitative problems by applying to fuzzy theory, in particular, by identifying appropriate fuzzy numbers through fuzzy sets and membership function. Moreover, the study seeks to obtain a crisp value in the process of defuzzifization in order to make up for the shortfall of the original method in dealing with relative weight of decisive factors and thus increase its applicability and credibility. The department of light production of an electronics company is used as an example in this study to measure environmental aspects by employing both the traditional significant factor method and the fuzzy environmental impact assessment model proposed in this study. Based on verification and comparison of results, the model proposed in this study is more feasible as it reduces partiality in decision-making by taking the relative weights of decisive factors into consideration.

Determining Quality Criteria for Online Health Information: A Qualitative Study

  • Cha, Myeong-Hwa;Park, Jyung-Rewng
    • Preventive Nutrition and Food Science
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    • v.11 no.4
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    • pp.305-310
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    • 2006
  • The Web is an important source of information for health care consumers, and the resources they find on the Web have a direct affect on their health outcomes. Despite the enormous benefits of online health care, the quality of health information on the Internet is an area of increasing concern. Therefore, there's a need to develop quality assessment tools that can filter out poor quality online health information. The purpose of this study is to explore the critical attributes for assessing website quality and for developing quality assessment measurements. We completed three focus group discussions with 24 participants that were administered by a moderator and based on specifically focused group questions. The results suggest that the most important quality criteria, as identified by the respondents, were related to issues of credibility and accuracy. To determine the credibility of Internet health information, the respondents stated one must consider the following: the information source, disclosure of the author's or organization's credentials/qualifications, disclosure of ownership and the updating of the content. For the accuracy of content, elements such as a statement of purpose, evidence-based information, relevance and completeness should be considered. Interactivity, accessibility, and design were additional quality criteria.

Design and Implementation of Web-Based Assessment System PAS for Increasing the Usability in Informatics Education (정보 교육에서의 사용성(Usability) 향상을 위한 웹기반 평가시스템 PAS의 설계 및 구현)

  • Yeum, YongChul;Yoo, SeungWook;Kim, Yong;Lee, WonGyu
    • The Journal of Korean Association of Computer Education
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    • v.11 no.1
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    • pp.1-10
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    • 2008
  • Web-based Assessment System is needed for Process-Oriented Evaluation to integrate instructions into evaluation frequently in Informatics Education, and considered usability for supporting teachers to test more conveniently. First of all, we analyzed usability of traditional Web-based Assessment System, and proposed PBA(Paper-Based Assessment) model by extracting usability features of paper-pencil assessment in off-line. The evaluation system based on the PBA model controls the whole processes of tests; before-test, under-test, after-test. Especially, the system readily can change the target class, and control access to the test page during each step. Thus we can get high credibility about the test results. Moreover, students can login to the paper easily by using their grade, class, number and name. Finally, we designed and implemented the Web-based Assessment System for Informatics education on the basis of PBA model; PAS(PBA-based Assessment System).

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A Study on the Recognition and Development plan of Local official's Competency assessment system in B Metropolitan city (지방공무원 역량평가제도의 인식과 발전방안 대한 연구 - B광역시를 중심으로 -)

  • YANG, Seung-eun;KANG, Beodeul
    • Journal of Fisheries and Marine Sciences Education
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    • v.29 no.2
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    • pp.479-491
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    • 2017
  • The purpose of this study is to seek the recognition and development method of the competency assessment in order to set up the competency assessment system introduced for the manager promotion in B metropolitan city. The following conclusion were obtained by studying the recognition of competency assesment system of candidates for promotion and non-candidates. First, it is found that non-candidates have a higher recognition of the necessity of competency assessment system and its credibility, fairness and influence on relieving nepotism than candidates for promotion. Second, competency factors that recognized to be necessary for the performance of manager's role were direction guidance, fostering members, integrative thinking and communication in sequence by candidates for promotion, while direction guidance, communication, integrative thinking and management of organization in sequence the non-candidates. Third, in terms of the operational aspect of the competency assessment system, both candidates and non-candidates wanted a pass rate of 70~90%. And the time required for the assessment task was most favored for 1~2hrs, and the judges of the competency assessment were preferred in the order of professors, public official, consultants, and headhunters. Fourth, $1^{st}$ candidates than non-candidates recognized that the person who are from $5^{th}$ or $7^{th}$ class appointment are younger, have high education, are better at presenting, are in administrative positions, and are more optimistic would be more advantageous in competency assessment.

The Development of a Tool and Its Application to High Schools for the Assessment in Trigonometry (삼각함수 단원의 수행평가 도구 개발 및 적용)

  • 고상숙;백정환
    • School Mathematics
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    • v.6 no.1
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    • pp.21-35
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    • 2004
  • This article was to develop a tool and apply it to the high school classrooms for the performance assessment in trigonometry Bloom(1956)'s cognitive domain and holistic rubric and analytic rubric(NCTM, 1999) were used to guide the development of 12 problems. To find validity and credibility of this developed tool, Cronbach n and Rasch's BIGSTEPS were used with the samples of high students, 208, using SPSS 10.0K. The results from the investigation, indicated that the tool was very worth assessing students' achievement and there was no difference between the areas where students lived, but were differences between genders as well as between a specialized high school and preparatory high schools.

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Improvement Plan of Ocean Physics Assessment Technique for Power Plant Thermal Effluent (발전소 온배수에 의한 해양물리학적 평가기법 개선방안 연구)

  • Kim, Myeong-Won;Jo, Gwang-Woo;Maeng, Jun-Ho;Kang, Tae-Soon;Kim, Jongkyu
    • Journal of Ocean Engineering and Technology
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    • v.28 no.3
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    • pp.245-253
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    • 2014
  • This research analyzed the current situation and problems with an environmental impact assessment to provide a rational ocean physics assessment technique for power plant thermal effluent. This research also tried to create an improvement plan for heated effluent diffusion impact assessment by examining the reporting regulations for environmental impact assessment, national and international evaluation guidelines, etc. In the case of evaluating the oceanographic impact of heated effluent discharged from power plants, a pre-investigation is necessary before a full-scale presentence investigation, to accurately predict and minimize power plant construction effects on the surrounding environments. Before this presentence investigation, moreover, an integrated presentence plan, which agrees with the business plan, effect prediction, and post-investigation, needs to be established. A sufficient summit investigation must be made, which considers climate changes, and new and additional power plant construction. For accurate long-term oceanic environmental change prediction, the credibility of effect prediction must be elevated by presenting an evaluation method that is categorized by numerical organization models, verification methods, result presentation, and other things. Furthermore, unproductive conflicts between the people involved in heated effluent evaluation should be reduced by these improvement plans.

Lifetime Assessment Criteria and Failure Analysis for the Clutch Coil in an Automotive Air Conditioner (자동차용 에어컨 클러치 코일의 수명평가 기준과 고장해석)

  • Choi, Man-Yeop;Wei, Shin-Hwan;Kim, Jung-Sik;Jeong, Hai-Sung
    • Journal of Applied Reliability
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    • v.11 no.2
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    • pp.111-126
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    • 2011
  • The clutch coil mounted on the automotive air conditioner is an important part which actuates the clutch to connect or disconnect the pulley and the compressor according to the climate control condition in an automobile. Here, it is generally required that the clutch coil should ensure the long term durability requirement, such as a warranty for the 10 years of field operation or 160,000 km driving, especially in a brand new item, and so forth. However, some difficulties have arisen in restoring its credibility, since domestic specifications for the part have not been yet unified. In order to ensure the reliability, test methods and assessment criteria should be standardized. Moreover, assessed lifetime under specific conditions and potential failure analysis would be important. In this study, lifetime test specifications for the clutch coil have been reviewed and methodological suggestions are provided to ensure reliability, utilizing a quality function deployment through the potential failure mode effect analysis.

A Study on Performance Assessment of Dry Floors Applied to Long-life Housing (장수명주택에 적용되는 건식바닥의 성능평가에 관한 연구)

  • Seo, Dong-Goo;Lee, Jong-Ho;Kim, Soo-Am;Shin, Yun-Ho;Hwang, Eun-Kyoung
    • Journal of the Architectural Institute of Korea Structure & Construction
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    • v.35 no.5
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    • pp.133-143
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    • 2019
  • Various problems regarding the wet floor method such as its complicated process and waste of thermal storage have been raised, but the usage of dry floor recommended for long-life housing has declined due to lack of confidence on the performance of dry floor. The purpose of this study is to secure the credibility of dry floor. Under this purpose, this study considered precedent studies and established directions to secure the performance of long-life housing infill, and thus, 9 performance items (Impact sound, Smoothness, thermal comfort, sensation hardness while walking, falling safety, impact resistance, local compression load, local strength and strain at heating) were drawn. In addition, the experiment was carried out for 5 performances except for legal performance, some dry floor performances and whole spatial performance. As a result, an appropriate result from all performances except was obtained. The performance of dry floor was verified for each item from these results and it is expected to use such results as basic data on dry floor in the future.

A-KRS GoldSim Model Verification: A Comparison Study of Performance Assessment Model (KAERI A-KRS 골드심 성능평가 모델 비교 검증 연구)

  • Lee, Youn-Myoung;Jeong, Jongtae
    • Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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    • v.11 no.2
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    • pp.103-114
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    • 2013
  • The Korea Atomic Energy Research Institute has developed a performance assessment model implementing the A-KRS concept, which was constructed with the GoldSim. In the A-KRS concept, spent nuclear fuel produced from pressurized-water-reactor operations would be pyroprocessed to reduce waste volume and radioactivity. The wastes to be disposed of in a geologic repository are comprised of metal and ceramic waste forms. In this study, results of simulations conducted to establish credibility and build confidence for the A-KRS model are presented. Specifically, release rates and breakthrough times simulated using the A-KRS model were compared to corresponding results from the U.S. NRC SOAR model. In addition, the A-KRS model results were compared to published release rates from the SKB repository performance assessment. This comparison of the A-KRS model results to other independent performance assessments is expected to form part of a suite of model verification and validation activities to provide confidence that the A-KRS model has been implemented appropriately.

Assessment of the Potential Impact of Climate Change on the Drought in Agricultural Reservoirs under SSP Scenarios (SSP 시나리오를 고려한 농업용 저수지의 이수측면 잠재영향평가)

  • Kim, Siho;Jang, Min-Won;Hwang, Syewoon
    • Journal of The Korean Society of Agricultural Engineers
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    • v.66 no.2
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    • pp.35-52
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    • 2024
  • This study conducted an assessment of potential impacts on the drought in agricultural reservoirs using the recently proposed SSP (Shared Socioeconomic Pathways) scenarios by IPCC (Intergovernmental Panel on Climate Change). This study assesses the potential impact of climate change on agricultural water resources and infrastructure vulnerability within Gyeongsangnam-do, focusing on 15 agricultural reservoirs. The assessment was based on the KRC (Korea Rural Community Corporation) 1st vulnerability assessment methodology using RCP scenarios for 2021. However, there are limitations due to the necessity for climate impact assessments based on the latest climate information and the uncertainties associated with using a single scenario from national standard scenarios. Therefore, we applied the 13 GCM (General Circulation Model) outputs based on the newly introduced SSP scenarios. Furthermore, due to difficulties in data acquisiton, we reassessed potential impacts by redistributing weights for proxy variables. As a main result, with lower future potential impacts observed in areas with higher precipitation along the southern coast. Overall, the potential impacts increased for all reservoirs as we moved into the future, maintaining their relative rankings, yet showing no significant variability in the far future. Although the overall pattern of potential impacts aligns with previous evaluations, reevaluation under similar conditions with different spatial resolutions emphasizes the critical role of meteorological data spatial resolution in assessments. The results of this study are expected to improve the credibility and accuracy formulation of vulnerability employing more scientific predictions.