The operation time of a disposal repository is generally more than one hundred years except for the institutional control phase. The structural integrity of a repository can be regarded as one of the most important research issues from the perspective of a long-term performance assessment, which is closely related to the public acceptance with regard to the nuclear safety. The objective of this study is to suggest the methodology for quantitative evaluation of structural integrity in a nuclear waste repository based on the adaptive artificial intelligence (AI), fractal theory, and acoustic emission (AE) monitoring. Here, adaptive AI means that the advanced AI model trained additionally based on the expert’s decision, engineering & field scale tests, numerical studies etc. in addition to the lab. test. In the process of a methodology development, AE source location, wave attenuation, the maximum AE energy and crack type classification were subsequently studied from the various lab. tests and Mazars damage model. The developed methodology for structural integrity was also applied to engineering scale concrete block (1.3 m × 1.3 m × 1.3 m) by artificial crack generation using a plate jacking method (up to 30 MPa) in KURT (KAERI Underground Research Tunnel). The concrete recipe used in engineering scale test was same as that of Gyeongju low & intermediate level waste repository. From this study, the reliability for AE crack source location, crack type classification, and damage assessment increased and all the processes for the technology development were verified from the Korea Testing Laboratory (KTL) in 2022.

The quality of service in ERP services is a key issue in innovating the ERP performance as an IT service for corporations. Currently, most of the research works for this area are based on the existing quality models such as SERVQUAL, which are said not to measure service quality properly. Also, it does not consider the factor of the system acceptance, which is thought to be closely related to the quality of service in this type of IT services. Therefore, a research model is required, which can address the issues related to the ERP service quality measurements. In this paper, new research models have been proposed, and empirical data obtained from SME’s ERP users have been applied to the proposed model to analyze the causal relationship between quality factors and to identify the most suitable quality measures. Also, the relationship between the service quality and the system acceptance was analyzed using a combined model. The results show that factors such as productivity and convenience affects the quality mostly and that the most appropriate measure for the service quality of ERP service is satisfaction. Also, for the system acceptance, the ease-of-use is the main factor. And, the service quality and system acceptance shows a strong correlation. This means that, in order to enhance the quality of ERP services, the service provider needs to provide customers with productivity-enhanced user-friendly IT services and active product support. The work of this research can help to improve the service quality and the user acceptance of ERP services and to lead further research works in this area.

개발부담금제는 현재 운영되고 있는 가장 대표적인 개발이익환수제도중 하나이다. 그러나 개발부담금제는 그것이 갖는 내재적 한계로 인하여 환수의 효율성이 높을 수 없다. 그렇다고 해서 개발부담금제에서 부과율을 높이는 등의 조치는 제도 자체의 논란만을 가중시킬 수 있다. 따라서 개발이익환수제도의 실효성을 제고하는 방안으로 기부채납의 활용을 검토할 필요가 있다. 기부채납은 본래의 공익과 사익의 합리적인 조정수단으로써 운영되는 것과 달리 효용성 및 사후관리의 문제 등의 많은 문제점이 제기되고 있는 실정이다. 이에 본 연구는 개발부담금 부과실적과 기부채납이 된 토지 현황분석을 통해 문제점을 도출하고, 이의 개선방안을 제시하는 것을 목적으로 한다.연구결과 개발부담금이 소규모 개발사업의 개발이익 환수에 유리하고 기부채납이 대규모 개발이익 환수에 적합함을 알 수 있었다. 또한 대규모 개발이익은 현재 추진되고 있는 사전협상제와 결합하면 큰 시너지 효과를 낼 수 있을 것이다. 특히 사전협상제도는 10,000㎡ 이상의 경우에만 대상이 되므로, 기부채납을 대규모 개발에 한정하여 개발이익 환수의 특례로 인정하고 개발부담금 산정에서 배제하여 협의에 의한 산정이 가능하도록 한다면, 전반적인 제도를 수정하지 않고도 대규모 개발사업에서 효율적으로 개발이익 환수를 실시할 수 있을 것이다.

본 논문은 조선 관련 기업에 해적에게서 지켜줄 수 있논 시스템 수용에 대한 해적에게서 지켜줄 수 있는 시스템 수용의 주요 요인을 검토하는 것을 목표로 하고 있습니다. 가설은 180 명의 사람들을 조사하여 실험 하였습니다. 연구 결과는 다음과 같습니다. 해적에게서 지켜줄 수 있는 시스템 수용의 네 가지 요소는 수용에 큰 긍정적인 영향을 미쳤습니다. 그것은 조선 회사와 관련 기엽에서 효과적인 해적에게서 지켜줄 수 있는 시스템 수용에 신뢰할 수 있는 기준을 표시됩니다.

This paper analyzes the main factors affecting user selection of a small-sum electronic payment system using survey data of 396 users. Several findings emerge. First, users consider three pillars and eight factors in adopting a new system : system feature

The benefits of information technology cannot be obtained unless potential users utilize it for their work. This led to a lot of research works on computer system acceptance. But most of the works address the early stage of system introduction, leaving th

본 연구에서는 Venkatesh 등(2003)이 제안한 UTAUT모형에서 간과된 플로우(시간적해리, 쾌락적해리)와 마음챙 김(탈중심, 비판단적 수용, 주의집중/현실자각)이라는 개념을 추가하여 보다 완전한 온라인게임의 피로도시스템과 관련된 모형을 검정하고자 하였다. 실증분석결과 첫째, 본 연구에서 설정한 변수들(성과기대, 예상노력, 시간적해 리, 쾌락적해리, 탈중심, 비판단적 수용, 주의집중/현실자각, 사회적 영향, 촉진조건) 중 '예상노력', '쾌락적해리', ' 주의집중/현실자각', '탈중심', '사회적영향'이 사용의도에 유의한 영향을 미치는 것으로 나타났으며 '주의집중/현실 자각', '탈중심', '사회적영향', '촉진조건'이 사용행동에 영향을 미치는 것으로 나타났다. 이러한 결과를 바탕으로 본 연구는 UTAUT모형과 같이 하나의 효과적인 수용모형을 통해 전체 정보기술 및 서비스의 수용을 설명하려는 모형을 제시하기 보다는 서비스의 유형에 따라 각기 다른 수용모형을 제시하고 검증하는 것이 필요할 것이라는 시사점을 제시하였다.

This study aims to understand the determinant of the employee’s intention to use information system within the framework of the Technology Acceptance Model (TAM) and Information System Success Model (ISSM). This paper also aims to examine the influence of ISSM dimension on the perceived usefulness and the perceived ease of use. The research respondents were 248 employees of Universitas Negeri Semarang (UNNES) who are users of the Financial Information System (SIKEU). Data was obtained using a questionnaire that was distributed online via Google form. The data analysis method used is Structural Equation Model (SEM) analysis using the Warp-PLS software. The results showed that the dimensions of TAM (perceived ease of use and perceived usefulness) had a positive and significant influence on the employee’s intention to use SIKEU. The ISSM dimension (system quality and information quality) also had a significant influence, although other ISSM dimensions (service quality) had not been proven to have a significant influence on the employee’s intention to use SIKEU. Moreover, the results showed that the employee’s intention to use is a determinant of SIKEU’s actual usage. Perceived ease of use was significantly determined by system quality, information quality, and service quality. In addition, the perceived usefulness was significantly determined by system quality and information quality.