Observation of a New Mechanism Balancing Hardening and Softening in Metals

<div><p>Plastic deformation of metals refines the microstructure and increases the strength through work hardening, but this effect of deformation is counterbalanced by dynamic recovery. After large strain, the microstructure typically shows a lamellar morphology, with finely spaced lamellar boundaries connected by triple junctions. Here, we report that mechanically assisted triple junction motion is an important contributor to dynamic recovery, leading to an almost steady state. Triple junction motion replaces two boundaries by one, while maintaining the structural morphology. The observation rationalizes both a decreasing work hardening rate and the approach to a dynamic equilibrium of structural refinement at large strains.</p></div

Complex Social Value-Based Approach for Decision-Making and Valorization Process in Chinese World Cultural Heritage Site: The Case of Kulangsu (China)

China is undertaking effective actions to adhere to wider international standards with better consideration of the notion of authenticity, collective memory, identity, and the sense of belonging. Besides the traditional participatory management discussions, scholars are also interested in finding out how the ICTs can encourage and enable new forms of engagement with heritage in different cultural contexts. The article offers an innovative approach to understanding the value of community participation in order to obtain a more sustainable way for integrative approaches in cultural heritage management. It focuses on the identification of criteria for the evaluation of Digital Community Engagement (DCE) and proposes the multivariate evaluation model based on the online questionnaires and face-to-face interviews. The result shows that the transparency of the restoration process, the possibility of adopting bottom-up suggestions, and the coherency with the residents’ interests are the most important factors to influence the Willingness to Participate and the Willingness to Pay. The analysis based on theme-coding is essential to understand the opinions of various stakeholders with different educational and professional backgrounds. It concludes that multi-disciplinary and value-based methods should be encouraged as an exploratory way ofenhancing community engagement in the specified urban heritage contex

Social Media as a Medium to Promote Local Perception Expression in China’s World Heritage Sites

The assessment of public participation is one of the most fundamental components of holistic and sustainable cultural heritage management. Since the beginning of 2020, the COVID-19 pandemic became a catalyst for the transformation of participatory tools. Collaboration with stakeholders moved online due to the strict restrictions preventing on-site activities. This phenomenon provided an opportunity to formulate more comprehensive and reasonable urban heritage protection strategies. However, very few publications mentioned how social networking sites’ data could support humanity-centred heritage management and participatory evaluation. Taking five World Cultural Heritage Sites as research samples, the study provides a methodology to evaluate online participatory practices in China through Weibo, a Chinese-originated social media platform. The data obtained were analysed from three perspectives: the users’ information, the content of texts, and the attached images. As shown in the results section, individuals’ information is described by gender, geo-location, celebrities, and Key Opinion Leaders. To a greater extent, participatory behaviour emerges at the relatively primary levels, that being “informing and consulting”. According to the label detection of Google Vision, residents paid more attention to buildings, facades, and temples in the cultural heritage sites. The research concludes that using social media platforms to unveil interplays between digital and physical heritage conservation is feasible and should be widely encouraged