Search Results (1,847)

Cairo’s Islamic architectural heritage represents one of the world’s most significant concentrations of pre-industrial environmental ingenuity. For over a millennium, an integrated suite of passive climate-control systems—the Mašrabiya latticework screen, the open courtyard (Ṣaḥn), the wind-scoop (Malqaf), and stalactite vaulting (Muqarnas)—has moderated temperature, humidity, and airflow with remarkable effectiveness. Today, these inherited solutions are under unprecedented stress from urban densification, chronic particulate pollution, climate-driven temperature rise, and growing visitor footfall. This study investigates indoor environmental quality (IEQ) in six Fatimid- and Mamlūk-era buildings in Historic Cairo through the integrated IQAD-IAH framework, combining IoT field monitoring (January–December 2023) of temperature, relative humidity, CO₂, and PM2.5 with CNN-based deterioration image analysis and Random Forest predictive modeling. Results document critical summer thermal buffering failures reaching 28% of occupied hours above the ASHRAE 55 adaptive comfort limit; hygrothermal stress cycles exceeding the EN 15757 ±10% RH safe threshold for up to 38% of annual hours; and PM2.5 courtyard concentrations of 40–61 µg/m³ under normal conditions, surging to 180–320 µg/m³ during Ḫamāsῑn-seasonal wind events. Machine-learning projections indicate all three principal passive elements will cross the critical deterioration threshold of 70/100 under RCP 8.5 before 2050. A precautionary intervention window is identified between 2025 and 2032. Evidence-based management recommendations compatible with UNESCO World Heritage obligations are presented. Full article

This paper addresses the important issue of the proper management and protection of subterranean monuments. It concerns the analysis and decoding of the microclimate that is created in heritage structures, which are structures located beneath the soil or carved into rock. The aim of this study is to understand the hygrothermal processes occurring in the mass of underground structural elements, such as evaporation, condensation, water content, and heat fluxes, based on the principles of building physics. The methodology used is the following: a systematic literature review on the topic, an overview of the factors affecting the microclimate, the assessment methodology, and the simulation tools used to decode and evaluate microclimate in subterranean heritage structures; a discussion of the current gaps; and finally, a proposal for future directions for research. A review of the literature reveals that researchers worldwide have employed similar methodologies to approach this complex issue. Recordings and analyses of the microclimate inside underground monuments lead to decision-making and the formulation of actions for optimal preservation. Due to the large number of parameters involved in microclimate analysis, computer software for numerical simulation has been used in many cases. Following the review of the relevant literature in the field of study, a critical discussion concludes by proposing directions for future research on this important topic. Basic results of this research identify current gaps, problems, and limitations. These include technical and practical issues or gaps concerning lack of data for material properties and weather conditions. Another significant limitation arises from the complexity of physical interactions, as well as from the human factor, which involves the proper use of the simulation program and the correct interpretation of the calculation results. This study demonstrates that the microclimate of subterranean heritage structures is the result of complex interactions between climate, geology, architectural design, material properties, and human use. Across different geographical and cultural contexts, subterranean monuments exhibit distinct microclimatic behaviors. The comparative analysis of case studies highlights that while subterranean environments generally benefit from thermal stability, they remain highly vulnerable to moisture dynamics, ventilation changes, and external climatic coupling. Hence, there is a necessity for context-specific approaches rather than generalized conservation solutions. Decoding subterranean microclimates requires a multidisciplinary framework that combines environmental monitoring, material indicators, architectural analysis, and numerical modeling. Full article

Historic districts are important built environments in which architectural form and cultural meaning shape residents’ place-based identity and engagement with conservation under urban renewal. However, empirical evidence on which features of the historic environment most strongly support local identity and conservation participation in migrant-intensive, fast-growing cities remains limited. This study investigates the relationships among architectural heritage, religious elements, cultural activities, local identity, sense of belonging, and conservation participation in five historic districts in Shenzhen, China. Using a residents’ questionnaire survey, we applied hierarchical multiple regression and mediation analysis to examine these relationships. The results indicate that architectural heritage is the strongest predictor of local identity, whereas religious atmosphere and cultural activities show comparatively weak effects. Local identity is positively associated with conservation participation, with only limited mediation through sense of belonging. The findings indicate that in migrant-intensive urban settings, architectural distinctiveness plays a stronger role in shaping local identity than religious or other cultural practices. Overall, the study argues that architectural heritage should be seen not only as a physical fabric to be preserved, but also as a resource that can strengthen local identity, participation, and socially sustainable urban renewal. Full article

Based on the UN SDGs global agenda and China’s national urban renewal strategy, this study highlights the key role of historic architectural decorative patterns in supporting cultural continuity in urban renewal and facilitating heritage building-informed regeneration. Focusing on the sustainable development of urban renewal and heritage building-informed design and regeneration of historic buildings, this study explores the quantification of the cultural memory value of decorative patterns. It integrates a quantitative indicator system into the Gaussian Strategy Enhanced Whale Optimization Algorithm-Back Propagation Neural Network (GSWOA-BP) to enable intelligent pattern generation. First, cultural genes are extracted from architectural heritage, followed by digital quantification and analysis, to generate context-appropriate pattern designs. These are then applied to urban renewal scenarios, ultimately promoting the transmission and revitalization of architectural heritage through digital means. This study provides theoretical support and a technical pathway for the intelligent design of historic architectural decorative patterns, facilitates cultural continuity in heritage building-informed design for urban renewal, and presents a heritage building-informed generative design framework. Full article

Background: This research explores the intersection between cultural heritage and mental health, analyzing how heritage mediation acts as a strategic asset in the personal recovery of individuals experiencing mental distress. Methods: A systematic review was conducted across PubMed, PsycINFO (via ProQuest Psychology Collection), Scopus, Web of Science, and Google Scholar for the 2015–2026 period, following PRISMA protocols. The methodological quality of 18 selected studies was evaluated using the Mixed Methods Appraisal Tool (MMAT). Results: The findings reveal that the efficacy of these practices stems from a symbiotic interaction between tangible and intangible heritage, functioning as an “identity scaffold” that facilitates the transition from a “patient identity” toward a “citizen identity” with biographical authority. Analysis under the CHIME (Conexión—Hope—Identity—Meaning—Empowerment) framework reveals convergent evidence across the Identity dimension, positioning cultural environments as “third spaces” that mitigate self-stigma. Discussion and Conclusions: Recovery is identified as a circular phenomenon requiring the convergence of clinical and cultural scaffolding. This study advocates for a humanized service architecture where therapeutic practices and affective curating coexist, ensuring the right to identity and social justice within community mental health contexts. Full article

Image-based PM2.5 estimation has emerged as a promising complementary approach to traditional physicochemical monitoring. However, achieving accurate predictions in severely polluted environments remains a critical challenge, as existing deep learning models tend to prioritize luminance variations induced by PM2.5 while neglecting the impact of complex atmospheric light interference, leading to substantial estimation errors. To address this issue, this paper proposes a novel luminance–spatial decoupling (LSD) module constructed based on L2–Lp Retinex theory and integrated into a VGG16 backbone. By establishing a prior knowledge module linking luminance to PM2.5, the proposed method achieves high-fidelity separation of atmospheric luminance (AL) and target luminance (TL) during feature extraction. TL represents the luminance variation induced by PM2.5 concentrations, whereas AL characterizes the luminance contribution arising from atmospheric light. Simulation experiments validate the reliability of the L2–Lp Retinex-based decomposition. Ablation studies reveal that the LSD module effectively mitigates haze interference in high-pollution conditions while minimizing influence on the backbone network in clear weather, thereby resolving the conflict between dehazing and feature extraction. Comparative experiments demonstrate that LSD-VGG16 significantly outperforms traditional methods and standard convolutional neural networks, achieving a minimum prediction error of 12.42 while exhibiting stronger stability against temporal variations. Furthermore, evaluation on the unseen RHID-AQI dataset without retraining confirms the model’s robust generalization capability under abrupt illumination fluctuations and diverse weather conditions. Full article

Dajue Temple, a representative ancient architectural heritage in North China, houses numerous lacquered wooden components of exceptional historical and artistic value. Prolonged environmental exposure causes severe dark discoloration and black spotting on lacquer surfaces, threatening their structural integrity. This first investigation into the damage identifies the spots as microbial in origin, with Cladosporium spp. as the primary agent driving deterioration and possessing wood-degrading capabilities. Antifungal tests show that thymol, clove essential oil, and nano-silver gel are all effective inhibitors. We proposed targeted, relic-friendly microbial control strategies tailored for ancient lacquered wooden components. These findings provided scientific guidance for the sustainable conservation and restoration of lacquered architectural elements in historic temples and comparable cultural heritage sites. In future work, environmental monitoring and the biocides’ compatibility should be involved, which will help to clarify microbe–environment interactions, enable early warning of biodeterioration risks and explore the wood-friendly biocides. Full article

While a conserved core microbiome is shared across healthy individuals, significant interindividual taxonomic variation exists; however, the specific influence of genetic ancestry on supragingival plaque structure in eubiosis remains unclear. This systematic review analyzed evidence regarding taxonomic variations in supragingival plaque associated with ethnicity in systemically healthy populations. A search was conducted in PubMed, Scopus, ScienceDirect, and Scielo following PRISMA 2020 guidelines, covering literature up to October 2025. Cross-sectional studies using genomic sequencing or metagenomics were included, with quality assessed via the GRADE system. Six studies met eligibility criteria. Results identified a universal core microbiome structurally dominated by Corynebacterium spp. and Streptococcus spp. However, distinct ethnic-specific taxonomic signatures emerged, such as the enrichment of Fusobacterium spp. in African Americans and Corynebacterium spp. in Caucasians, alongside the exclusive presence of Sneathia spp. in Burmese individuals. Although a basal microbial architecture necessary for homeostasis exists, ethnicity acts as a biological filter defining distinctive bacterial profiles and differential susceptibilities. These findings suggest that while the core microbiome is conserved, the composition of peripheral species in the dental plaque hedgehog structure varies according to ancestry. This supports a transition from standardized dental care to personalized medicine oriented towards the patient’s biological heritage. Full article

With the rapid development of digital technologies, augmented reality (AR) has created new possibilities for the presentation and dissemination of cultural heritage. However, conventional digital guide systems in historic districts are typically dominated by static information delivery, lacking interactivity and user engagement, which limits their effectiveness in enhancing public understanding of historic architectural environments and related cultural knowledge. To address this limitation, this study focuses on historic architectural districts and proposes a narrative-based AR cultural exploration approach embedded in real architectural space. The Hubu Mountain historic architectural district in Xuzhou, China, was selected as the case study. First, grounded theory was employed to systematically analyze the cultural resources of the district and extract key cultural narrative elements. Based on these elements, a design framework for a narrative AR cultural exploration system was constructed. Subsequently, a mobile AR interactive system was developed using the Unity 2022.3 LTS and Vuforia Engine 10. A total of 80 participants were recruited and randomly assigned to either an experimental or a control group. Cultural knowledge tests, an immersive experience scale, and a dissemination intention scale were used to evaluate the outcomes, and the collected data were analyzed statistically. The results indicate that, compared with a conventional text–image guide condition, the narrative AR exploration condition significantly improved participants’ cultural cognition and dissemination intention. Specifically, the experimental group achieved significantly higher post-test scores in cultural knowledge than the control group, and a significant between-group difference was also observed in dissemination intention. In terms of immersive experience, although the experimental group reported higher mean scores than the control group, the difference did not reach statistical significance, showing only a possible improving trend. These findings suggest that an integrated narrative AR cultural exploration condition can enhance public understanding of historic architectural districts and strengthen the communication potential of heritage experiences in real built environments. This study provides a digital interpretation approach for historic architectural districts and offers empirical support for the use of AR-based interactive systems in architectural heritage communication and public engagement. Full article

The conservation and restoration of architectural heritage face dual challenges from natural erosion and human interference, necessitating the adoption of efficient and non-contact digital technologies to achieve sustainable preservation. Virtual reality (VR) technology, with its advantages of immersion, interactivity, and visualization, provides a novel technological pathway for digital documentation, conservation decision-making, and public presentation of architectural heritage. Taking the Fuliang Red Pagoda in Jingdezhen, Jiangxi Province, as the research object, this study constructs a high-precision digital reconstruction and VR interactive application workflow based on the integration of terrestrial laser scanning and close-range photogrammetry. Through point cloud denoising, Iterative Closest Point (ICP) registration, and Poisson surface reconstruction algorithms, a refined three-dimensional model of the pagoda is achieved, and an immersive VR system is developed with functions including component information query, virtual restoration scheme switching, and interactive exploration. The results demonstrate that this technical workflow not only enables non-contact digital archiving of the Fuliang Red Pagoda but also provides a visual decision-support tool for conservation interventions. Under full-scene operation, the system achieves an average rendering frame rate of 92 FPS and maintains motion-to-photon latency below 20 ms, ensuring good real-time performance and interaction stability. The findings indicate that VR-based digital technologies can enhance the scientific rigor of conservation planning and promote public engagement while adhering to the principles of authenticity and minimum intervention. This study provides a replicable technical pathway and practical reference for high-precision digital reconstruction and sustainable conservation of historic buildings. Full article

Achieving sustainable urban development and optimizing the urban scale structure are central priorities in global governance. However, the relentless population agglomeration in Chinese megacities, despite astronomical living costs, presents a prominent “China Paradox” that seemingly defies classical spatial equilibrium theories. This study decodes this paradox by endogenizing the strategic land supply behaviors of local governments. Utilizing a comprehensive panel dataset of 287 Chinese prefecture-level cities from 2006 to 2020, we construct a multi-dimensional mediation framework and a panel threshold model to investigate how the structural misallocation of land—specifically, the pro-industrial and anti-residential bias—reshapes urban migration dynamics. Empirical results reveal that this land allocation bias acts as the fundamental institutional engine driving urban polarization. Analysis of the transmission pathways reveals a complex push–pull dynamic at the core of this paradox. The artificial restriction of residential land drives up housing prices, generating a profound centrifugal “push” force. However, this dispersion effect is entirely neutralized by two formidable centripetal “pull” forces: industrial co-agglomeration fueled by subsidized manufacturing land, and premium public service capitalization financed through lucrative land revenues. Furthermore, this demographic pull effect exhibits a pronounced inverted U-shaped dynamic, peaking during the rapid growth phase but diminishing precipitously once cities cross the threshold into highly developed megacities (LnGDP > 11.525). These findings highlight the ultimate unsustainability of the land-driven urbanization model. We propose a paradigm shift towards sustainable urban governance, advocating for stage-specific land supply reforms and the transition from monopolistic land finance to a sustainable property tax system to foster a spatially just and resilient urban hierarchy. Full article

As a key convergence zone between the Circum-Bohai Sea cultural circle and the land–sea interface of Northeast Asia, the Liaoning coastal area has been shaped by multicultural integration, endowing its dwellings with distinctive cultural hybridity and geographic adaptability. This study takes 160 traditional dwellings as samples and integrates field surveys, historical documents, and multi-source geographic data to construct a multi-dimensional feature identification system. Quantitative classification is conducted using principal component analysis and systematic clustering, and external validity is verified through historical document comparison and spatial overlay analysis. The results indicate that five dwelling pedigrees are identified: the Coastal Quadrangle Courtyard Type, the Coastal Flat-Roofed Middle Courtyard Type, the Coastal Gabled-Roof Small Courtyard Type, the Mountainous Gabled-Roof Small Courtyard Type, and the Plain Flat-Roofed Long Courtyard Type. Regarding the formation mechanism, geographic detectors reveal that the coupling effect of migration culture and topographical conditions is the dominant mechanism shaping pedigree differentiation. This study verifies the applicability of integrating quantitative and qualitative methods in dwelling research within multicultural convergence zones, constructs a pedigree framework for traditional dwellings in coastal Liaoning, and provides a theoretical basis for the systematic understanding and sustainable conservation of vernacular architectural heritage in the Circum-Bohai Sea region. Full article

Urban renewal in China increasingly focuses on extensive residential historic areas embedded within cities. Recent practice emphasizes refined and progressive renewal strategies, which require multi-dimensional evaluations of micro-scale spatial elements and the formulation of differentiated renewal pathways. The progressive renewal also requires repeated evaluation and adjustment. However, conventional evaluation and decision-making largely rely on manual judgment, which can be subjective and inefficient when dealing with complex information. To address these limitations, this study proposes a digital methodological workflow integrating multi-objective analysis with design decision-making. The workflow targets spatial design issues at three hierarchical levels—streets, plots, and buildings—and is implemented through a multi-module platform. The platform consists of an analytical evaluation module and a design decision module. The analytical module provides quantitative assessments across morphological and non-morphological dimensions, while the design decision module combines analytical results with expected parameters to generate optimization suggestions for spatial structures and identify renewal pathways for spatial elements. Tested in the conservation and renewal planning of Hehuatang in Nanjing, the platform demonstrates the ability to efficiently compare spatial structure schemes and rapidly determine renewal pathways, improving the scientific rigor and efficiency of renewal planning. Full article

To address the challenge of efficiently and cost-effectively generating images of intangible cultural heritage (ICH) furniture that can adapt to diverse modern spatial contexts for visual communication, this paper proposes and constructs an Generative Artificial Intelligence (AIGC) virtual studio system based on ComfyUI. The system is designed for ICH furniture designers, cultural communicators, and digital preservation practitioners, aiming to overcome the bottlenecks of scene switching encountered in traditional photography and 3D modeling. First, furniture images and user scene descriptions are collected, and a dual lexicon consisting of AI prompts and user prompts is constructed. The analytic hierarchy process (AHP) is then applied to weight and filter prompt combinations, forming a quantifiable and integrated prompt system. Second, a visual workflow incorporating ControlNet and IPAdapter nodes is built in ComfyUI to enable the transfer of ICH furniture images to various preset spatial scenes. Finally, a Likert-scale comparison is conducted between the experimental group (using AHP-weighted prompts) and the control group (using unweighted prompts). The results show that the experimental group achieves significant improvements in image realism, style consistency, and cultural communication effectiveness. The images generated by this system can be directly used for digital display, e-commerce product pages, design proposals, and cultural archives of ICH furniture. The method is applicable to the context-aware AIGC generation of traditional furniture and home products, provided that a certain amount of image data and a ComfyUI environment are available. This study provides a reusable technical pathway for the modern visual presentation of ICH furniture and offers methodological support and empirical evidence for the integration of AIGC into environmental design. Full article

Spolia, defined as reused architectural elements in constructions, constitute a diachronic practice extending from antiquity to modern times, mostly denoting war trophies. Their application was related to multiple parameters including technical, economic, aesthetic, symbolic, and cultural aspects. In all cases, the reuse of high-quality, processed materials could be associated with the diachronic principles of sustainability. Therefore, spolia can be characterized as precursors of the contemporary circular resource management strategies adopted in the constructional sector. In the present paper, the spolia identified in nine monuments in Thessaloniki, dated throughout a wide period of 1.5 millenniums (from the Roman to the Ottoman era), were studied. Analysis results, regarding their location, functional use, type, origin, geometric characteristics, and technology, were statistically processed and concluding remarks were assessed. Their application was classified into three principal categories related to structural, functional, and symbolic usage, rendering spolia material mediators between successive historic periods, through which memory, cultural identity, and architectural continuity can be foreseen in the city of Thessaloniki. Full article