• 한국컴퓨터정보학회논문지
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• 제29권8호
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• pp.165-170
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• 2024

본 연구는 인공지능 평가 모델을 활용하여 양주시의 대기질 관리 시스템의 정확성을 검증하는 데 목적이 있다. 환경부 미세먼지 공공 데이터와 양주시 대기질 관리 시스템 데이터를 비교하여 미세먼지 데이터의 정합성과 신뢰성을 평가하였다, 이를 위해 데이터의 완전성, 유일성, 유효성, 일관성, 정확성, 무결성을 분석하였다. 데이터의 정합성을 비교하기 위해 탐색적 통계 분석을 활용하였다. 분석 결과, AI 기반 데이터 품질 지수 평가 결과, 두 데이터 세트 간에 통계적으로 유의미한 차이가 없음을 확인하였다. AI 기반 알고리즘 중 랜덤 포레스트 모델이 가장 높은 예측 정확도를 보였으며, ROC 커브와 AUC를 통해 예측 성능을 평가하였다. 특히, 랜덤 포레스트 모델은 대기질 관리 시스템의 최적화에 유용한 모델로 확인되었으며, 미세먼지 데이터의 신뢰성과 적합성을 AI 기반 모델 성능 평가로 활용할 수 있음을 확인하였다.

• 간호행정학회지
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• 제3권1호
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• pp.107-118
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• 1997

This study was designed to obtain basic data for development of evaluation tool which would be needed to measure the outcome of general quality nursing care of individual patient. The purpose of this study was to analyze and classify the outcome indicators of quality nursing care. The 29 articles of quality nursing care and outcome measures were selected coveniently, and analyzed to classify the outcome indicators of quality nursing care using open coding method. The results of this study were as follows: 1. Quality nursing care was defined as level of excellence of nursing care to achieve good patient outcome. 2. The 6 domains of which were health status, satisfaction, self care, patient progress and prognosis, and compliance were identified in outcome indicators of quality nursing care 3. Seven indicators of health status domain which were perceived health status, quality of life, well-being, daily activities, physical-physiological status, psychoemotional status, and social role functioning were identified. 4. Two indicators of satifaction domain which were patient satisfaction and family satisfaction were identified. 5. Three indicators of self care domain which were skill, knowledge, and home management were identified. 6. Seven indicators of patient progress and prognosis domain which were change of clinical status, resolution of nursing diagnosis and problem, days of stay, dicahrge state, recovery state, survival were identified. 7. compliance with therapeutic direction compliance was identified as an indicator of compliance domain. 8. It was sugested that studies for development of evaluation tools for outcomes of quality nursing the results of this study could be executed

• 한국기계가공학회지
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• 제18권2호
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• pp.96-101
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• 2019

This paper presents a machinability evaluation of Inconel 718 material when using a new uniform-temperature indirect cooling method that incorporates constant-pressure liquid nitrogen (LN2). The flank wear of a TiAlN coated tool used with this indirect cooling system was much lower than that of the tool used with dry machining under all machining conditions. Also, the surface roughness resulting from machining with this indirect method was far less than that of a dry machined surface after the same cutting time. Reduced heat generation and uniform temperature in turning operations play important roles in tool life and surface quality.

• 한국융합학회논문지
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• 제11권2호
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• pp.161-165
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• 2020

재활과학분야에서 메타분석을 이용한 연구가 증가하는 추세이지만 모든 메타분석 논문의 질적 수준이 동일한 것은 아니다. 특히, 메타분석이 가장 상위의 근거수준을 가진 연구방법임에도 불구하고, 개별 연구들 간의 이질성을 고려하지 않고 단순히 대푯값만을 통합할 경우 결과를 왜곡시킬 뿐만 아니라 잘못된 대안을 도출할 가능성이 높다. 본 연구는 2010년 1월부터 2019년 6월까지 우리나라에서 출판된 언어중재를 주제로 한 메타분석 논문을 대상으로 현황을 파악하고, A Measurement Tool to Assess the Methodological Quality of Systematic Review(AMSTAR)를 이용하여 방법론적 질을 평가하였다. 검색된 논문 98편 중 최종 5편 논문의 방법론적 질을 평가한 결과 총점 11점 중에서 평균 7.4점이 산출되어 보통 이상의 수준으로 확인되었다. 향후 언어병리학 메타연구의 질적 수준을 높이기 위해서는 출판편향에 대한 검증과 이해상충에 대한 명시를 포함해야 할 것으로 사료된다.

• 한국병원경영학회지
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• 제23권1호
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• pp.1-15
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• 2018

Recently, the importance of emergency medical services has emerged, as rapid advances in urbanization and industrial development. Accordingly, the need for effective emergency medical services is increasing, and the evaluation of an emergengy medical services centers is conducted to meet these policy needs. The purpose of this study was to analyse the relationship between the structure and the process domain of the evaluation of an emergency medical services center based on the Donabedian's model and to verify the validity as an index of quality evaluation through the results. As a result of the analysis, there were some indicators that showed a different direction than expected, but generally there was a significant correlation between the structure and process domains of the evaluation of an emergency medical services center. This suggests that the process can be improved by improving the structure. In conclusion, as structure and process indicators in evaluation of an emergency medical services center show significant relationship, it can be evaluated as validity as a tool to measure the quality of emergency medical services.

• 한국실내디자인학회논문집
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• 제25권4호
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• pp.147-155
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• 2016

In order to ensure a certain level of the quality of design, standardized evaluation indicators are being used as an objective criterion. Even though the evaluation indicators are quantifiable, limitations such as inefficiency and inconsistency caused by manual task in the evaluation process still have been found. BIM (Building Information Modeling) technology that is commonly adopted in architectural design process provides an environment which enables us to figure out a building model to be interpreted quantitatively with the basis of the building information model. It supports quantitative, consistent, accurate and quick evaluations so as to improve quality of design even in the initial design phase. This paper aims to establish BIM-enabled quantitative indicators and an evaluation framework to analyze building circulation even in early phase of design. The indicators are composed of 4 types (relative distance, accessibility, simplicity, pedestrian friendliness) and 7 sub-types. The evaluation framework is the process to derive Parameterized Path Value (PPV) as weighting on each indicator. For demonstrating the scalability of the suggested evaluation indicators and the framework, the authors implemented an evaluation tool and a case study has been carried out by using an actual building remodel project.

• Design & Manufacturing
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• 제6권2호
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• pp.90-95
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• 2012

The sheet metal forming proceccing is very important and indispensable in the automotive industry because the accuracy of prsee worked parts is directly related to the automotive quality. But when making mold it is difficult and expensive to modify mold. mold design technology is a critical technology in press plastic working. When design the mold there are lots of variables in press plastic working according to worked material, mold materials, conditions of heat treatment, clearance and so on. Abrasion of mold depends on these kind of conditions and sheared surface which is crucial for quality of product also depends on them. In this study, we conduct research on abrasion loss of mold according to 8, 10 and 12% of clearance for thickness of 1.0mm of worked material out of mold design variables of the products whose worked materials are high carbon steel and carbon tool steel by a practical experiment and perform a comparative evaluation of difference of abrasion loss mold with the alloy tool steel (STD11) and Tungsten Carbide (WC).

• 한국정밀공학회지
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• 제19권10호
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• pp.92-98
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• 2002

End mill is an essential tool to generate complex surface in workpiece and it has been developed with various materials and tool shapes. The most important factor to evaluate the performance of end mill is still the wear characteristics of flank face. In addition to the flank wear, the tool edge roughness generated by the chipping is another important factor in aspects of material property and machinability evaluation and affects the quality of machined surface. Up to now, there is no direct method for measurement of tool edge roughness. In this study, the tool edge roughness of flat end mill is indirectly measured along the axial direction of workpiece. The theoretical equation is derived in consideration of tool geometry. Finally, the optimal conditions to measure the tool edge roughness by the proposed method are presented through the theoretical review and experimental identification.

• 대한통합의학회지
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• 제6권3호
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• pp.83-92
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• 2018

Purpose : The purpose of this study was to develop an index of usability that reflects the needs and characteristics of the elderly. The usability index is used primarily to assess issues in the usability of a product. Methods : In this study, 22 items for mobile toilet usability index were developed by consulting with 12 elderly users, 6 caregivers, and 12 experts. The usability evaluation index was intended to increase reliability through preliminary and main evaluations. In addition, the validity of the items used as the usability evaluation index was verified to prove that the index is effective for the evaluation. Result : The usability index is a welfare tool developed by gathering data from various sources such as previous studies dealing with usability evaluation, characteristics of users, range of use, and environment of product use. Conclusion : The development of the usability index for mobile toilets was useful for the user to quantitatively derive the problem of the product. Consequently, user needs and usability problems can be identified, which can help improve product quality.

• 정보교육학회논문지
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• 제5권2호
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• pp.258-267
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• 2001

본 논문에서는 수업 유형별 교수-학습원리와 학습성과 영역별 수업원리 그리고 학습자의 특성을 적절히 반영한 웹 코스웨어의 평가 준거를 설정하고, 타당성과 신뢰성 그리고 객관성을 검증하였다. 또한, 인터넷 상에서 평가가 이루어지도록 평가 도구를 개발한다. 본 논문에서 개발된 웹 코스웨어 평가 도구는 우수한 웹 코스웨어 개발의 방향과 지침을 제시해 주며, 평가 결과가 인터넷 상에 게시됨으로써 학습자들이 우수한 웹 코스웨어를 선택하는데 많은 도움을 줄 것이다.