• 대한기계학회논문집A
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• 제24권9호
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• pp.2381-2386
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• 2000

Surface replication is playing an important role in the assessment of creep damage and remaining life of high temperature components. As the replication procedures, however, have not been standardized in domestic industry, its standardization is proposed in this study. For this purpose, the 2.25Cr-IMo steel was heat treated(5 min at 1,300 0C and oil quenched) to produce a simulated HAZ microstructure, and crept in air at 575 0C and under 120 MPa to produce artificial cavities. Then, the effect of surface preparation procedures on the quality of replicas was investigated using this sample. As a result, it was demonstrated that the presence of cavities may be observed readily or missed depending on the surface preparation procedures followed. Therefore it is essential to repeat three polishing/etching cycles at least in order to reveal cavitation damage accurately, even though it may be tedious or time-consuming.

• Journal of Digestive Cancer Research
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• 제11권2호
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• pp.104-107
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• 2023

The Ministry of Health and Welfare of Korea has implemented various social security programs to ensure a basic standard of living and raise overall quality of life for all citizens. The Korean social security system provides social insurance, public assistance, and social welfare services. To achieve adequate drug benefits, the Drug Management Department of Health Insurance Review and Assessment Service (HIRA) implement drug management duties including drug listing, upper price limit setting, scope of benefits, and post-factum management. When a manufacturer or an importer wants to apply for National Health Insurance (NHI) coverage of the drug that has obtained safety and efficacy approval, the pharmaceutical benefit assessment committee of HIRA evaluates the drug's clinical efficacy and cost-effectiveness to determine whether or not to include the drug into the benefit package. The benefit standards for a listed drug (ingredient) are set either for the whole permitted range or a part of range with conditions. To increase the coverage rate for new drugs, the listed drugs are regularly reviewed for their value. The status of listed drugs can be adjusted or eliminated from the benefit package if the clinical efficacy turns out to be insignificant. Therefore, through these pharmaceutical management procedures, high-quality drugs are provided at reasonable prices, which save healthcare expenditure by price determination and selective coverage in consideration of economic evaluation.

• 경영과정보연구
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• 제2권
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• pp.295-310
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• 1998

This exploratory study examines critical quality factors of store that can give access to credit card. The procedures of developing instrument is followed by recommendations on the developing measures of marketing constructs. The results shows that service quality of store available for credit card is divided four dimensions(personal service, payment-approving service, information-providing service, problem responsiveness service). These dimensions and scales are verified through the assessment of reliability and validity. Finally, the importance of personal service is showed to be different across types of industry.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2004년도 Proceedings of ISRS 2004
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• pp.397-400
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• 2004

Synthetic Aperture Radar(SAR) is an active micro­wave instrument that performs high-resolution observation under almost all weather conditions. Although there are many advantages of SAR instrument, many complicated steps are involved in order to generate SAR image products. Many research and algorithms have been proposed to process radar signal and to increase the quality of SAR products. However, it is hard to find research which compare the quality of SAR products generated with different algorithms and processing methods. In our previous research, a SAR processing s/w was developed for a ground station. In addition, quality assessment procedures and their test parameters inside a SAR processor was proposed. The purpose of this paper is to evaluate the quality of SAR images generated from the developed SAR processing s/w. However, If there are no direct measurements such as radar reflector or scattering field measurement values it is difficult to compare SAR images generated with different methods. An alternative procedures and parameters for SAR image quality evaluation are presented and the problems involved in the comparison methods are discussed. Experiments based on real data have been conducted to evaluate and analyze quality of SAR images.

• 한국항공운항학회지
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• 제21권1호
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• pp.51-56
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• 2013

Risk assessment should be processed when physical circumstances of airspace such as establishment of new flight procedures or reconstruction of existing airspace are planned to change and one of the alternatives for the change have to be selected. This is an effort to find the best alternative which is able to maintain at or above the acceptable risk level. ICAO and its contracting states provide specialized guidance material for 'Safety Management System' relating to handing airspace matters. These manuals include a conceptual framework for managing safety as well as some of the systemic processes and criteria used to meet the objectives of a State's safety programme. This criteria must be established in compliance with the State's laws and regulations for air safety and for the fulfillment of the State's safety goals. This study is to carry out the risk assessment criteria through literature reviews relevant to the safety management, and to propose the results of criteria to be applicable for establishing flight procedure design process.

• 환경영향평가
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• 제21권2호
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• pp.327-338
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• 2012

Environmental specimen banks provide the baselines for the scientists and decision makers to do research using the past and present specimens to expect the possible contaminant implications of the future. Many chemicals that are considered harmless now but not found may be found and pose threats in the future. Collected specimens of animals and plants should be conserved without contamination for future analysis. To ensure the availability of samples for the retrospective analysis, the establishment and maintenance of specimen banks in the developing and developed nations has become absolutely necessary. National Environmental Specimen Bank (NESB) established at National Institute of Environmental Research (NIER) in 2009. For the application of NESB, several activities such as standard operating procedures (SOPs) development have been prepared. This study applied the guidelines for sampling and sample treatment of five environmental specimens which had been prepared from 2007 to 2009. The target species were shoots of red pine and Korean pine, leaves of Mongolian oak, eggs of domestic pigeon and muscles and livers of common carp. The NESB will enhance the quality of environmental assessment and environmental monitoring based on real time and retrospective analysis.

• 한국환경과학회지
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• 제26권11호
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• pp.1209-1222
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• 2017

On June 5, 2008, the "Act on Special Cases Concerning the Simplification of Authorization and Permission Procedures for Industrial Complexes" (Act No. 9106) was enacted. When it was implemented in August 2008, many industrial complex development projects were established, and the number of industrial complexes growth rates of 3-6% during 2003-2007 rose to around 15% in 2008. With the increase in industrial complexes, the environmental impacts of individual projects were examined, but comprehensive regional reviews of environmental impacts were not undertaken. In this study, we determined changes in air quality by applying the industrial complex development plan that completed the consultation at the end of 2010 to assess the comprehensive regional environmental impacts and presented the adequacy review plan for future industrial development plans based on the study's results. When considering these industrial complex development plans, emissions in North Jeolla and South Chungcheong Provinces and Daegu City have increased significantly. Air quality analyses showed that the 24 h mean $SO_2$ concentration in Daegu increased by more than 50% in summer compared to air quality concentrations in summer. The 24 h mean $PM_{10}$ and $NO_2$ concentrations increased by approximately 12 and 30%, respectively, in North Jeolla Province in summer. Areas exceeding the air quality standard for 1 h mean $O_3$ concentration increased by more than $3,500km^2$. Based on the above analysis, changes in air quality should be anticipated through a comprehensive evaluation of long-term development plans. Furthermore, control of air quality in accordance with the development of future industrial complexes is possible.

• 환경영향평가
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• 제18권3호
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• pp.131-141
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• 2009

We studied improvement in marine environmental impact assessment and related management systems of coastal sediments that are dredged inshore but disposed offshore. After reviewing and diagnosing the existing assessment procedures and problems, we recommend to design the core assessment items and improve the reliability of assessment byenhancing the quality assurance/quality control (QA/QC) and verification processes. We proposed eco-friendly disposal plan for dredging sediment such as reuse system in land development was explored. A marine environmental database system was established to support the assessment processes. Guidelines for marine research and modelling were proposed for improving assessment of dredging and disposal of coastal sediment. Also, applying of screening and scoping for marine environmental assessment was reviewed.

• 한국조사연구학회:학술대회논문집
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• 한국조사연구학회 2002년도 추계학술대회 발표논문집
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• pp.111-127
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• 2002

국가통계의 활용도가 높아질수록 통계에 대한 객관적인 품질평가 필요성도 높아지게 된다. 과거에 대표적인 품질평가지표로 간주되어 온 평균제곱오차나 응답률은 유용성에 많은 문제가 있으므로 통계이용자의 다양한 요구사항을 반영할 수 있는 새로운 품질지표 개발의 필요성이 대두되었다. 따라서 본 논문에서는 정부기관에서 작성하고 있는 표본통계조사를 대상으로 통계작성 절차의 흐름을 분석하고 각 절차별 투입자료와 산출결과를 인식함으로써 최종 집계결과의 품질에 영향을 미칠 수 있는 절차별 품질지표를 개발하는 방법이 연구되었다. 또한 발굴된 절차별 품질지표에 다른 통계간 또는 동일 통계간 품질을 비교할 수 있도록 품질지수 산출방법이 논의되었다.

• 한국의료질향상학회지
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• 제2권1호
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• pp.110-117
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• 1995

The Comprehensive quality assurance for radiation oncology provides an overall organizational structures, responsibilities, procedures, processes and resources for assuring the quality of patient management by radiation treatment. Superior performance of modern radiotherapy equipment will be essential part of quality assurance in radiation oncology, which high degree of accuracy and consistency should be maintained under the optimal quality assurance program. Besides quality control of all radiation equipment, this review also emphasizes quality assurance of clinical aspect such as adequacy of the medical decision-making which eventually leads to the treatment prescription, accuracy of treatment procedure from treatment preparation to radiation delivery, and the significance of assessment of treatment outcomes with structure and process.