The concept of deep geological disposal for high-level radioactive waste is based on an engineered barrier system (EBS), including a canister, bentonite buffer and backfill material. The bentonite buffer is key component of the EBS to prevent groundwater infiltration and radionuclide leakage. However, the bentonite buffer can become saturated due to groundwater flow through the excavation damaged zone in the adjacent rock, causing erosion of bentonite buffer and affecting the long-term performance of EBS. While the RH (relative humidity) sensor is commonly used to assess the degree of saturation in the bentonite buffer, it has a critical challenge due to its sensor size, which can disturb the overall integrity of the bentonite buffer during the initial installation process. In contrasts, the electrical resistivity test, widely known as a non-destructive method, is used to predict soil properties such as the degree of saturation and water contents. This method measures the electric resistance of materials using electric current induced by electric potential difference between two electrodes. Notably, there is no study that assess the integrity of bentonite buffer in a nuclear waste repository using electrical resistivity measurement. This study presents the electrical resistance numerical module under steady state using commercial finite element method (FEM), and quantitatively estimate the change of electrical resistance according to saturation and erosion of bentonite buffer. Furthermore, the electric potential and current density distribution formed between two electrodes are analyzed.

The present study identified several antecedents that create perceived resistance to supply chain management (SCM) change. This work particularly emphasizes SCM change, which is notable given its central role in reacting market orientation and varied environmental and managerial conditions. A careful case study on a small and medium sized food production company in South Korea leads to the formulation of our framework including one second-order construct of ‘resistance’ as well as eight first-order constructs of ‘implementing the payment terms’, ‘balancing of business process’, ‘fear of responsibility’, ‘business sustainability transparency’, ‘past experience of failure’, ‘competence of work personnel’, ‘cooperation with third parties’ and ‘sharing personnel information with partner’. The hypothesized relation of first- and second-order construct was validated using survey sample data collected from 350 respondents who completed their questionnaire instrument. Results from confirmatory factor analysis revealed that nomological validity was established at statistical significance level by identifying six first order constructs of ‘implementing the payment terms’, ‘fear of responsibility’, ‘business sustainability transparency’, ‘past experience of failure’, a conbined construct of 'competence of work personnel/ cooperation with third parties’ and ‘sharing personnel information with partner’. The findings from our work are expected to provide important insights to the strategy for SCM risk management for small and medium sized company.

Compared to steel of the same weight in steel concrete structures, fiber reinforced polymer (FRP) is known to have greater strength and better resistance to corrosion. As such, it is being proposed as an effective structural material. Despite its many advantages, FRP has not been rapidly adopted in civil structures. This is because it is more expensive, prone to brittle fracture, and has weak fire resistance. To examine changes in the mechanical properties of FRP and the effectiveness of fire resistant coating, this study conducted tensile tests on coated and uncoated specimens over varying temperature. Glass fiber has excellent fire resistance since it does not melt or burn at high temperatures. However, epoxy is unable to withstand exposure to temperatures exceeding the transition temperature, thus leading to unsatisfactory structural performance and fire resistance. This study investigated the behavioral changes in FRP by exposing the specimens to temperatures ranging from room temperature (approx. 25℃) to 300℃, so as to improve the fire resistance of epoxy.

본 연구는 조직정치 지각이 조직변화에 대한 저항에 미치는 영향력과 이들 변수들의 관계에 있어서 조직비전 및 리더비전 인식의 조절효과를 실증적으로 규명하는데 목적이 있다. 조직구성원들이 조직정치를 지각하면 조직이 추구하는 변화에 저항하며, 이때 조직비전과 리더비전의 인식 수준에 따라 조직정치 지각의 영향력이 달라진다는 것이다. 조직구성원들의 변화저항은 심리적 저항과 행동적 저항으로 구분하였다. 연구가설은 주효과 가설과 조절효과 가설을 설정하였다. 분석결과를 요약하면 다음과 같다. 첫째, 조직정치 지각은 조직구성원들의 조직변화에 대한 저항을 증가시키는 것으로 나타났다. 둘째, 조직비전과 리더비전 인식은 조직구성원들의 변화저항에 유의미한 영향력을 미치지 못하였다. 마지막으로 조직비전 인식은 조직정치 지각이 변화저항에 미치는 영향력에 있어서 조절역할을 수행하는 것으로 나타났다. 결과적으로 조직정치 지각은 조직구성원들의 조직변화에 대한 저항을 증가시키는 것으로 나타나 조직정치 지각이 변화저항에 중요한 선행변수임을 알 수 있었다. 더불어 조직비전 인식이 높은 경우 조직정치 지각이 조직변화에 대한 저항에 미치는 영향력은 조직비전 인식이 낮은 경우보다 더욱 크게 나타나고 있었다. 이는 조직비전이 명료하며 이를 조직구성원들이 잘 공유하고 있다고 인식할수록 조직정치 지각이 조직변화 저항에 미치는 부정적 영향력은 더욱 확대된다는 것이다. 본 연구는 조직구성원들의 변화저항에 있어 조직정치 지각이 중요한 선행변수라는 것을 규명하였다는 점에서 의의를 가질 수 있다. 더불어 조직비전 인식의 역할을 살펴봄으로써 조직비전을 명료하게 공유하는 것도 중요하지만, 조직정치를 감소시켜야만 조직구성원들을 조직변화 노력에 동참하도록 유도할 수 있다는 것을 밝혔다는 점에서 의의가 있다.

The purpose of this paper is to uncover whether and how contextual factors (information exchange, participation, trust in management, and training), relate to resistance to change. It also explores the mediating effect of perceived impact of change on the relations between contextual factors and resistance to change. This study is conducted in several manufacturing plants in food processing industry in Vietnam, which is implementing a top-down large-scale change – Lean transformation, adopting Total Productive Maintenance (TPM) program, to be specific. The findings suggest that all four contextual factors are negatively associated with resistance to change, in which training had the strongest impact. Also, the perceived change impact partially mediates the relationships between the four contextual factors and resistance to change. The practical implications of this paper are that employees who receive adequate, timely and useful information relating to change are less likely to show opposing behaviors towards change. Fostering trust in management among employees, and employee involvement in decisionmaking, also have a significant influence when addressing employee resistance to change. Employees who are well-trained, well-equipped with tools and knowledge about the change, are less likely to resist as they view the benefits of changes more significant than the risks.