Search Results (773)

Conservation of historic buildings has long relied on traditional, reactive methods that address deterioration only after it occurs, often leading to irreversible damage. This study introduces an innovative approach that integrates Digital Twin (DT) technology with advanced machine learning algorithms to enable predictive and data-driven conservation. Focusing on Nottingham Cathedral, a Grade II listed Gothic Revival building, this research developed a 3D Historic Building Information Model (HBIM) enhanced with real-time environmental monitoring of temperature, humidity, and air quality. The collected data were analysed using MATLABR2024a to train and evaluate several predictive algorithms, including Long Short-Term Memory (LSTM), Backpropagation Neural Network (BPNN), Adaptive Neuro-Fuzzy Inference System (ANFIS), and Nonlinear Autoregressive Exogenous (NARX) models. The NARX model achieved the highest accuracy (Root Mean Square Error (RMSE) = 0.19) in forecasting indoor environmental conditions. Findings indicate that maintaining an indoor temperature increase of 4–6 °C can effectively reduce relative humidity below 60%, minimising deterioration risks. The study demonstrates how integrating DT and machine learning offers a proactive framework for environmental optimisation and long-term preservation of heritage assets, moving conservation practice from reactive restoration toward predictive conservation. Full article

This article explores the reclamation of Khoisan identities in South Africa as a multifaceted process of cultural, spatial, and political resurgence. Framed within the country’s constitutional vision of a “Nation of Nations,” the research examines how Khoisan communities—historically marginalised and classified under apartheid as “Coloured”—are reasserting their Indigenous heritage through acts of cultural revival and place-based activism. Centred on Cape Town, the ancestral homeland and symbolic epicentre of both colonial encounter and Indigenous resurgence, the article theoretically investigates how creativity, heritage, and activism intersect in processes of reimagining, renaming, and retaking of place. Drawing on theories of visual sovereignty and re-placement, it analyses how visual and performative practices—ranging from protest art and language revitalisation to heritage occupations—function as decolonial acts that reclaim both the image and meaning of place. The article situates the Khoisan revival within broader global movements of Indigenous self-representation and argues that reclaiming place constitutes a living form of sovereignty, restoring relational networks between people, land, and identity. Ultimately, it demonstrates that contemporary Khoisan activism transforms visibility into agency, using culture and creativity as tools to rewrite belonging and to decolonise South Africa’s cultural landscape. Full article

This study identifies the technological signature of ancient and alternative “Chu” and “Kriab” gold glass mosaic mirrors from Thailand. Although these mirrors play an important role in Thai decorative heritage, their production routes and interfacial chemistry at the lead-to-glass interface have remained unclear. A survey of 154 sites across Thailand shows mosaic glass was widely distributed and likely produced during the Ayutthaya period (~300 years ago). Portable X-Ray Fluorescence (pXRF), Wavelength-Dispersive XRF (WD-XRF), scanning electron microscopy (SEM), and X-ray Photoelectron Spectroscopy (XPS) were used to examine the material properties of observed Chu mirrors. Most samples can be classified as a mixed lead–alkaline glass type, with a PbO content ranging from 4.28 to 48.17 wt%. Their yellow tone is controlled by iron and manganese redox states. Chemical and physical analyses distinguish between Chu from the northern part of Thailand and Kriab from the central part of Thailand, which share a silica source but rely on different fluxes, pointing to different glass workshops. Crucially, XPS depth profiling reveals a well-defined interfacial reaction zone extending to approximately 6 nm in the ancient mirrors, predominantly characterized by disordered, chain-like Pb–O–Pb linkages. These polymeric structures enable a “chemical bridging” mechanism that effectively accommodates interfacial strain arising from thermal expansion mismatch, thereby ensuring exceptional long-term adhesion. Furthermore, the depth-dependent distribution of hydrated lead species and the emergence of photoelectron energy-loss features beyond ~6 nm distinguish the superior metallic integrity of the ancient coatings from the alternative reproductions. This distinct stratification confirms that ancient artisans achieved a sophisticated balance between a chemically bonded interface and a coherent metallic bulk. These findings offer significant insights into the ingenuity of ancient Thai artisans, providing a scientific foundation for the conservation, restoration, and replication of these culturally significant artifacts. Full article

The practices followed in the preservation of medieval castles in Latvia during the Soviet occupation period have not yet been comprehensively examined. This article seeks to elucidate this issue by considering a single case study—Turaida Castle. From the 13th until the mid-16th century, Turaida Castle functioned as one of the principal residences of the Archbishop of Riga. From the 17th century onward, its medieval fortifications progressively deteriorated. Between 1952 and 1991, during the Soviet occupation period, the ruins of Turaida Castle became the subject of major restoration, reconstruction, and conservation projects, as well as systematic archaeological investigation. These preservation efforts were impeded by the deteriorated condition of the original brickwork and by the limited availability of appropriate methodologies and theoretical literature. Nonetheless, owing to the scope and continuity of these interventions, Turaida Castle has become one of the most frequently visited heritage sites in Latvia, attracting both international and domestic visitors from the 1960s to the present. The article outlines the principal achievements of the site’s preservation practices and identifies key challenges and shortcomings that have emerged throughout the process. Full article

The 17th-century stucco altar dedicated to St. Michael the Archangel is an interesting, but very damaged, artwork located in the complex of St. Angel in the little town of Barbarano Romano in Central Italy. During the recent and quite necessary restoration carried out by University of Tuscia students on the Conservation and Restoration of Cultural Heritage Master’s program, some problems with the surface coating were encountered in the cleaning phase. Diagnostic and scientific analyses were crucial to better understanding the composition of these materials to perform the safest and most efficient cleaning procedures. The first of many steps required by this approach was an in situ analysis, starting from on-site analysis and diagnostic documentation through X-ray fluorescence spectroscopy and ultraviolet fluorescence photography, followed by laboratory investigations. The latter included µ-Raman and Fourier transform infrared spectroscopies, gas chromatography coupled with mass spectrometry, and scanning electron microscopy equipped with an energy-dispersive detector. Each technique provided useful data to determine the chemical composition of the white surface coating, which was found to be a non-original overpaint containing lead and organic binder. This overpaint had been applied to retouch the white stucco during a previous restoration project. All this new information contributed to achieving the final decision to remove this layer. Full article

Ancient books and documents constitute an important cultural heritage, which are composed by different supports, such as cardboard, parchment and paper. Due to their composition (animal- and plant-based matrices), they allow bacteria and fungi to thrive, causing the phenomenon of biodeterioration, an ecological succession in parchment. Four ancient books called “Compositionum” from the Apostolic Vatican Archive, made of the same materials, exposed to weather-beating conditions and showing different degrees of deterioration, were analysed by a multidisciplinary approach: DNA metabarcoding using NGS, Light Transmission Analysis and Raman and FTIR spectroscopy. The results highlighted how the biodeteriogen community composition changed from the least to the most damaged, without evidence of significant microbial transfer across the three matrices. The results allow confirmation of the ecological succession as biodeterioration process, including cardboard and paper, in addition to in parchment. These results give important insight for the conservation and restoration practices of all matrices. Full article

Against the backdrop of accelerating urbanisation in China, the urban-rural divide continues to widen, while cave dwellings along the Yellow River have been largely abandoned, facing the challenge of cultural erosion. This study breaks from conventional conservation approaches by empirically exploring the viability of living heritage in promoting sustainable rural revitalisation and integrated urban-rural development. Employing participatory action research, it engaged multiple stakeholders—including villagers, returning migrants, and urban designers—across 60 villages in the middle reaches of the Yellow River. This collaboration catalysed a “collective-centred” adaptive reuse model, generating multifaceted solutions. The case of Fangshan County’s transformation into a cultural ecosystem demonstrates how this model simultaneously fosters endogenous social cohesion, attracts tourism resources and investment, while disseminating traditional culture. Quantitative analysis using the Yao Dong Living Heritage Sensitivity Index (Y-LHSI) and Living Heritage Transmission Index (Y-LHI) indicates that the efficacy of collective action is a decisive factor, revealing an inverted U-shaped relationship between economic development and cultural preservation. The findings further propose that living heritage regeneration should be reconceptualised from a purely technical restoration task into a viable social design pathway fostering mutually beneficial urban-rural symbiosis. It presents a replicable “Yao Dong Solution” integrating cultural sustainability, community resilience, and inclusive economic development, offering insights for achieving sustainable development goals in similar contexts across China and globally. Full article

Transit-Oriented Development (TOD), formalized by Calthorpe and Poticha in 1993, emerged to counter urban sprawl, reduce car dependency, and revitalize historical community centers. Rooted in “new urbanism”, TOD emphasizes integrated regional land-use planning and high-capacity public transportation. In the Middle East, TOD implementation remains understudied, particularly regarding heritage integration and social equity in arid climates. Doha’s rapid social and economic transformation presents both opportunities and risks: growth offers urban revitalization yet threatens to displace communities and dilute cultural identity. Shifts in urban planning have aimed to address sustainability, connectivity, and heritage preservation. This study examines Msheireb Downtown Doha (MDD) to assess how TOD can restore historic districts while managing gentrification, enhancing accessibility and promoting inclusiveness. A mixed-methods approach was applied, including 12 semi-structured interviews with stakeholders (Qatar Rail, Msheireb Properties, Ministry of Municipality and Environment), purposive surveys of 80 urban users, site observations, and spatial mapping. Using the Node-Place-People (NPP) model, the study evaluates TOD effectiveness across transportation connectivity (node), built environment quality (place), and equity metrics (people). The findings show that MDD successfully implements fundamental TOD principles through its design, which enhances connectivity, walkability, social inclusiveness, and heritage preservation. However, multiple obstacles remain: the “peripheral island effect” limits benefits to the core, pedestrian–vehicular balance is unresolved, and commercial gentrification is on the rise. This research provides evidence-based knowledge for GCC cities pursuing sustainable urban regeneration by demonstrating both the advantages of TOD and the necessity for critical, context-sensitive implementation that focuses on social equity together with physical transformation. Full article

Accurate wood identification is fundamental to any study, conservation, or restoration activity involving cultural heritage objects, including musical instruments. Here, we apply WoodScope, a structured, multi-scale and minimally invasive workflow for wood identification, to three traditional Japanese chord instruments, showing how a systematic sequence of visual, macroscopic, and microscopic observations maximizes diagnostic accuracy while safeguarding object integrity. The results show that out of 39 wooden parts analysed, 38 were identified non-invasively. In one case, targeted micro-sampling was performed, based on macroscopic observation, to obtain additional information. Overall, our results confirm that most instrument components can be reliably identified at the genus level or, when diagnostic characters are insufficient, to broader anatomical groups, without the need for destructive sampling. Our study demonstrates the efficacy of the WoodScope approach to optimise wood identification outcomes while preserving the object’s integrity and confining micro-targeted sampling to instances where microscopic anatomical characters are indispensable for reliable taxonomic identification and cannot be evaluated non-invasively. Full article

After nearly two decades of developments in Historic/Heritage Building Information Modeling (HBIM), the field has reached a stage of maturity that calls for a critical reassessment of its evolution, achievements, and remaining challenges. Digital representation has become a central component of contemporary heritage conservation, enabling advanced methods for analysis, management, and communication. This review examines the maturation of HBIM as a comprehensive framework that integrates extended reality (XR), artificial intelligence (AI), machine learning (ML), semantic segmentation and Digital Twin (DT). Six major research domains that have shaped recent progress are outlined: (1) the application of HBIM to restoration and conservation workflows; (2) the expansion of public engagement through XR, virtual museums, and serious games; (3) the stratigraphic documentation of building archaeology, historical phases, and material decay; (4) data-exchange mechanisms and interoperability with open formats and Common Data Environments (CDEs); (5) strategies for modeling geometric and semantic complexity using traditional, applied, and AI-driven approaches; and (6) the emergence of heritage DT as dynamic, semantically enriched systems integrating real-time and lifecycle data. A comparative assessment of international case studies and bibliometric trends (2015–2025) illustrates how HBIM is transforming proactive and data-informed conservation practice. The review concludes by identifying persistent gaps and outlining strategic directions for the next phase of research and implementation. Full article

The tilework of Talavera de la Reina (Toledo, Spain) was declared Intangible Cultural Heritage of Humanity in 2019, with one of its landmarks being the tilework preserved in the Basilica of Nuestra Señora del Prado, known as the ‘Sistine Chapel of Talavera tilework’. In the entrance portico to the Basilica, we find the ceramic panel of Virgins and Tercios in front of Christ, which should be reinterpreted as two different compositions: virgins in front of Mary and tercios in front of Christ (milites Christi), on which we will focus our research. The analysis of the location and state of conservation of the pieces that currently make up this panel, as well as the existence of pieces in various areas of the Basilica, which most likely belong to each of the compositions, allow us to propose a recomposition and reintegration of elements that would enable a better view and interpretation of these panels. To this end, a scientific methodology and appropriate intervention criteria are proposed to completely recompose this panel through the restoration of all the necessary pieces. This example can be extrapolated to the rest of the altarpieces and interior panels of the Basilica, which would facilitate their proper conservation, interpretation and dissemination. Full article

The IPCC has emphasised the increasing impacts of climate change across multiple sectors, including cultural heritage. In response, UNESCO launched the Policy Document on Climate Action for World Heritage in 2023, offering guidance on mitigation strategies for historic sites. Cultural heritage faces risks not only from sudden catastrophic events—such as floods, droughts, and wildfires—but also from the gradual deterioration of buildings and artefacts due to shifting environmental conditions. Climate change further affects the indoor microclimate of heritage sites, including museums, archives, and libraries, which are critical to the long-term preservation of cultural assets. Heritage, including heritage buildings and both tangible and intangible heritages, are subject to changes; therefore, their conservation should be assessed to identify sustainable approaches. This study investigates how climate change and microclimate alterations impact the conservation of historic buildings without modern climate control, using the Malatestiana Library—a UNESCO Memory of the World site—as a case study. The library has preserved a remarkably stable indoor environment for centuries, without the introduction of heating, cooling, or major restorations. A monitoring campaign during the summer of 2024 assessed the effects of extreme heat events on the library’s microclimate, comparing two internal spaces to examine the attic’s role in mitigating thermal stress. Data from the 2024 heatwave are also compared with similar data collected in 2013. Results show a marked shift toward a more tropical indoor climate over the past decade, signalling new threats to the preservation of historic materials. These findings highlight the urgent need for adaptive conservation strategies to address the evolving challenges posed by climate change. Full article

The Potocki family of the Pilawa coat of arms was among the most powerful noble lineages of the former Polish–Lithuanian Commonwealth, and its history is closely intertwined with that of Poland, Lithuania, Belarus, and Ukraine. In the late seventeenth century, Feliks Kazimierz Potocki (1630–1702) founded the town of Krystynopol (now Chervonohrad), named in honor of his wife, Krystyna Lubomirska. The residence, passed down through successive generations of the Potocki family, was transformed in the mid-eighteenth century into an impressive Baroque palace-and-garden complex designed by Pierre Ricaudde Tirregaille, becoming a model example of the magnate cultural landscape on the border of present-day Poland and Ukraine. In the centuries that followed, the estate changed owners multiple times, suffered devastation during the world wars, and in the Soviet period housed the Museum of Atheism. Today, the partially restored palace accommodates a small regional museum. Although in the eighteenth century the palace was surrounded by an extensive Italian-French style garden with water canals, ponds, and fountains, the area has since been built over with public-utility buildings. This study presents a concept for the development of the surviving elements of the historical palace park. The project is based on historical analyses, field research, site inspections, interviews with museum staff and town residents, as well as a detailed dendrological inventory including an assessment of tree health. The study area covers 4.71 ha, and the current tree stand is composed mainly of Salix alba, Populus nigra, Populus alba, Betula pendula, Quercus robur, Fraxinus excelsior, Ulmus laevis, Acer negundo, and Acer pseudoplatanus. Archival sources allowed for the reconstruction of the original layout of the palace-park complex. The aim of the project is therefore to introduce new representative, educational, recreational, social, ecological, and touristic functions to the currently neglected area while respecting its historical heritage. Full article

This study investigates Armenian editorial conventions for inscriptions and evaluates their compatibility and the possibility of their further integration with international standards of epigraphic editing for open access and equal use. It focuses on the Divan Hay Vimagrut’yan (Corpus of Armenian Epigraphy), launched in the 1960s, which introduced a systematic apparatus for distinguishing diplomatic transcriptions from interpretative reconstructions. Later Armenian publications often simplified these conventions, replacing specialized signs with typographic substitutes. While these changes improved accessibility, they also reduced palaeographic precision and created inconsistencies across editions. Through comparative analysis with the Leiden Conventions and the EpiDoc TEI framework, the research identifies both areas of alignment and points of divergence. Armenian conventions handle missing letters, restorations, redundancies, and abbreviations in distinctive ways, sometimes reassigning the meaning of symbols across different publications. This variation, if not explicitly documented, complicates digital encoding and risks loss of information. Methodologically, this study develops a digital heritage interoperability model that translates local Armenian editorial practices into machine-actionable standards, enabling their integration into international infrastructures such as EpiDoc and FAIR-based cultural heritage systems. The principal contribution of this work is the proposal of a dual-track encoding strategy. One track applies a granular mapping of Armenian signs to the full set of Leiden and EpiDoc categories, ensuring maximum interoperability. The other track preserves a simplified schema faithful to Armenian usage, reflecting local scholarly traditions. Together, these approaches provide both international comparability and cultural specificity. The conclusion is that Armenian inscriptions can be effectively integrated into global digital infrastructures by means of transparent documentation, crosswalk tables, and encoding policies that follow FAIR principles. This ensures long-term preservation, machine-actionability, and the broader reuse of Armenian epigraphic data in comparative cultural heritage research. Full article

Under rapid urbanization and ecological transformation, balancing authenticity preservation with adaptive reuse presents a major challenge for industrial heritage landscapes. This study investigates the Dagushan Iron Mine in Anshan, China’s first large-scale open-pit iron mine and once the deepest in Asia, which is currently undergoing ecological backfilling that threatens its core landscape morphology and spatial integrity. Using a mixed-method approach combining archival research, spatial documentation, qualitative interviews, and expert evaluation through the Analytic Hierarchy Process (AHP), we construct a cross-validated evidence chain to examine how evidence-based industrial landscape heritage values can inform low-intervention digital narrative strategies for off-site learning. This study contributes theoretically by reframing authenticity and integrity under ecological transition as the traceability and interpretability of landscape evidence, rather than material survival alone. Evaluation involving key stakeholders reveals a value hierarchy in which historical value ranks highest, followed by social and cultural values, while scientific–technological and ecological–environmental values occupy the mid-tier. Guided by these weights, we develop a four-layer value-to-narrative translation framework and an animation design pathway that supports curriculum-aligned learning for off-site students. This study establishes an operational link between evidence chain construction, value weighting, and digital storytelling translation, offering a transferable workflow for industrial heritage landscapes undergoing ecological restoration, including sites with World Heritage potential or status. Full article