Natural Disaster Risk Monitoring for Immovable Cultural Relics Based on Digital Twin

Natural disaster risk monitoring is an important task for disaster prevention and reduction.In the case of immovable cultural relics,however,the feedback mechanism,risk factors,monitoring logic,and monitoring indicators of natural disaster risk monitoring are complex.How to achieve intelligent perception and monitoring of natural disaster risk for immovable cultural relics has always been a focus and a challenge for researchers.Based on the analysis of the concepts and issues related to the natural disaster risk of immovable cultural relics,this paper proposes a framework for natural disaster risk monitoring for immovable cultural relics based on the digital twin.This framework focuses on risk monitoring,including the physical entities of natural disaster risk for immovable cultural relics,monitoring indicators,and virtual entity construction.A platform for monitoring the natural disaster risk of immovable cultural relics is proposed.Using the Puzhou Ancient City Site as a test bed,the proposed concept can be used for monitoring the natural disaster risk of immovable cultural relics at different scales.

Influence of particle size distribution on biocarbonation method produced microbial restoration mortar for conservation of sandstone cultural relics

Biocarbonation of reactive magnesia based on microbially induced carbonate precipitation(MICP)process is a sustainable geotechnical reinforcement technology for strength development and permeability reduction.This method can be used to produce microbial restoration mortar(MRM)for the application of stone cultural relics restoration.In this paper,the influence of particle size distribution on the strength and porosity of MRM was examined.By mixing fine and coarse sandstone powder in various proportions,nine different particle size distributions were obtained to investigate the restoration performance,including the unconfined compressive strength(UCS),porosity,and color difference.The results indicate that the well-graded particle size distribution can lead to the UCS improvement and porosity reduction of MRM.The findings also imply that adding fine sandstone powder to the coarse sandstone powder can provide extra bridging contacts within the soil matrix.These bridging contacts can be easily connected by the precipitated hydrated magnesium carbonates(HMCs)minerals,consequently resulting in more effective bonding and filling within the pore matrix.The microstructural images of MRM confirm the formation of HMCs,which exhibited a dense network structure,filling out the gap and bonding the sandstone powders.Furthermore,the microbial restoration mortar showed a high weather resistance to dry-wet cycles,acid rain,and salt attack,which is attributed to better stability and strength of HMCs than the original calcic cemented minerals in sandstone.

Pheasants in sacred and other forests in western Sichuan: their cultural conservation

Buddhism and local cultural traditions have long protected wildlife species and their habitats in Tibetan-dominated areas of western Sichuan. In Daocheng County, the White Eared-pheasant (Crossoptilon crossoptilon) has been afforded special protection by local people because it is conspicuous and white, a color with special symbolism for Buddhists. This and other cultural reasons have led to pheasants and forests benefiting in some areas. Pheasants were found during surveys between January 2003 and June 2004 in forests with varying degrees of local (non-formal) protection. However, there were significant signs that these traditional attitudes were changing in the face of three particular pressures brought to bear by better roads, improving access to and from the rest of China. The first was the development of a significant local demand for the Chinese caterpillar fungus (Cordyceps sinesis), which is much sought after throughout East Asia and mushrooms. Second, and more recent, is a dramatic increase in tourism from major Chinese cities, bringing non-Tibetan values into Daocheng County and changing the local attitudes to all animals. And then, there is a rise in income of the local population, resulting in a higher timber demand for building big houses, which impact all wildlife in the forest, but local attitudes to sacred forests have been retained so far in spite of this increased timber demand. Lessons should be learnt from the impact that unregulated tourism at Chonggu monastery, the most visited area in the county, has on the surrounding forests so that other sacred and non-sacred forests can best be protected for the long term. The alternative is that several Tibetan Plateau Galliformes, currently considered non-threatened because of their extensive distribution in a remote area, cannot be guaranteed such a healthy future.

Automatic Extraction Method of 3D Feature Guidelines for Complex Cultural Relic Surfaces Based on Point Cloud

Cultural relics line graphic serves as a crucial form of traditional artifact information documentation,which is a simple and intuitive product with low cost of displaying compared with 3D models.Dimensionality reduction is undoubtedly necessary for line drawings.However,most existing methods for artifact drawing rely on the principles of orthographic projection that always cannot avoid angle occlusion and data overlapping while the surface of cultural relics is complex.Therefore,conformal mapping was introduced as a dimensionality reduction way to compensate for the limitation of orthographic projection.Based on the given criteria for assessing surface complexity,this paper proposed a three-dimensional feature guideline extraction method for complex cultural relic surfaces.A 2D and 3D combined factor that measured the importance of points on describing surface features,vertex weight,was designed.Then the selection threshold for feature guideline extraction was determined based on the differences between vertex weight and shape index distributions.The feasibility and stability were verified through experiments conducted on real cultural relic surface data.Results demonstrated the ability of the method to address the challenges associated with the automatic generation of line drawings for complex surfaces.The extraction method and the obtained results will be useful for line graphic drawing,displaying and propaganda of cultural relics.

Sanxingdui Cultural Relics Recognition Algorithm Based on Hyperspectral Multi-Network Fusion

Sanxingdui cultural relics are the precious cultural heritage of humanity with high values of history,science,culture,art and research.However,mainstream analytical methods are contacting and detrimental,which is unfavorable to the protection of cultural relics.This paper improves the accuracy of the extraction,location,and analysis of artifacts using hyperspectral methods.To improve the accuracy of cultural relic mining,positioning,and analysis,the segmentation algorithm of Sanxingdui cultural relics based on the spatial spectrum integrated network is proposed with the support of hyperspectral techniques.Firstly,region stitching algorithm based on the relative position of hyper spectrally collected data is proposed to improve stitching efficiency.Secondly,given the prominence of traditional HRNet(High-Resolution Net)models in high-resolution data processing,the spatial attention mechanism is put forward to obtain spatial dimension information.Thirdly,in view of the prominence of 3D networks in spectral information acquisition,the pyramid 3D residual network model is proposed to obtain internal spectral dimensional information.Fourthly,four kinds of fusion methods at the level of data and decision are presented to achieve cultural relic labeling.As shown by the experiment results,the proposed network adopts an integrated method of data-level and decision-level,which achieves the optimal average accuracy of identification 0.84,realizes shallow coverage of cultural relics labeling,and effectively supports the mining and protection of cultural relics.

Value Analysis of Immovable Cultural Relics from Landscape Perspective

This paper started by defining immovable cultural relics and landscape, and explicitly classified cultural relics under landscape. Then it analyzed the scientific value, artificial value, and historical value of cultural relics based on the angle of landscape. All these values had been changed and were indicated cultural value, aesthetic value and resource value as new values. The cultural value included identification with culture, inherited culture and educational value. The content of aesthetic value contained visual aesthetics and enjoyment. The resource value which was composed of the essence, space-time and scarcity, was revealed economic value, which was composed of environmental value and tourism value. In the following, the values of landscape and the new identified values of cultural relic were compared together to discover the connections between them. Finally, the new values of cultural relic were established under the angle of landscape which was composed of 4 degrees.

Challenges to the Conservation of Subak System as World Cultural Heritage in Bali

Subak in Bali is believed to have been existing from earlier than the ninth century. Throughout this long period, Subak has been successfully utilized water resources for irrigation. Subak has been recognized as world cultural heritage by UNESCO since 2012. Currently, however, the sustainability of the system and its existence in the future is a big concern. This research is a literature review that aims to identify the challenges and provide option of solutions to sustain the Subak. The study showed that some operational and maintenance aspects of Subak are alarming, such as some network deterioration, limited availability of maintenance facilities either from government or farmers. Despite this condition, religious tradition of Subak is still carried out, although the processions vary from one Subak to another. There are several challenges in regards to Subak conservation: (1) reduction of the Subak area, resulting in declining income to support a decent life; (2) deterioration of quality and quantity of water resources; (3) the age of farmers is above 40 years with a heavy financial burden; (4) there are no clear external regulations to support Subak conservations. This study suggests several strategic steps in keeping the sustainability of Subak. The strategic steps include:refunctioning government officials; providing government support to reduce cost levied to farmers; facilitating collaborations between farmers and other stakeholders; promoting alternative commodities which have a higher financial value; preventing and repairing damages of upstream areas; controlling pollution; forming a coordination board at a provincial, regency and river basin level; building the Subak information systems; providing supervising mechanism, and encouraging academics and students to participate in an effort to preserve Subak itself.

Units 7 Cultural relics课本要点精练

一、单词拼写根据句意和首字母或汉语提示,写出句中所缺单词的完全形式。1.The c________exchange between the two countries will make them better under

Renewal Design of External Space of Wangji Temple in Xi’an Based on Integrated Conservation of Cultural Heritage

Based on the theory of integrated conservation of cultural heritage, through the study of the content of integrated conservation of cultural heritage, the external space of Wangji Temple, an ancient building in Xi’an, was renewed and designed.The corresponding design methods are used to solve the problems of material structure, visual landscape and social function in the space to improve the quality of space and maintain and enhance the value of cultural heritage of Wangji Temple, and provide a reference case for the improper use of external space of urban ancient buildings caused by insufficient awareness of the integrated conservation of cultural heritage.

Ancient Cultural Relics in Cities and Environmental Art Design: Series I of Urban Public Environment Design

Buildings and spatial environment left by history record evolution traces of cities and significant events related to the cities, and as a particular carrier of culture, they are witnesses of city development, and show the later generations memories of the city history. In urban planning, historical images must be respected, the relation between ancient cultural relics and urban planning handled properly, city brand established, and city image improved. The author, on the basis of exploring signifi cance of urban ancient cultural relics, used practical cases to fi gure out approaches of preserving urban ancient cultural relics in urban planning.

Welcome Lost Cultural Relics Back!

A statistics show that China lost more than 10 million cultural relics after the Opium War in 1840. Following the return of 361 pieces of Chinese cultural relics by the United States, Italy has recently returned 796 pieces of lost Chinese cultural relics and artworks, demonstrating the efforts and effectiveness of exchanges and cooperation in international cultural relics protection.

Listen to Stories of the Silk Road from Cultural Relics in Thirteen Countries Sharing a Common Future-Exhibition of Treasures from National Museums along the Silk Road

April 11 to July 14, 2019,"Sharing a Common Future 一 Exhibition of Treasures from National Museums along the Silk Road" was held at National Museum of China. The thirteen national-level museums participated in the event and exhibited 234 cultural relics.

The Cultural Relics Exhibition Series of the Joint Exhibition of Asian Civilizations

The Joint Exhibition of Asian Civilizations is an exhibition activity during the Conference on Dialogue of Asian Civilizations, which includes the Art Exhibition and the Cultural Relics Exhibition Series. From May 13 to August 11,2019, the Cultural Relics Exhibition,"the Splendor of Asia 一 an Exhibition of Asian Civilizations", is opened at National Museum of China. Those exhibited are 45 1 cultural relics from 47 Asian countries and another 2 countries with ancient civilizations, i.e., Greece and Egypt. Among them were 1 09 Chinese relics, including Bronze Statue of Yi, Changxin Palace Lamp and other national treasures.

Revitalization Strategy in Conservation and Renewal of Historical and Cultural Districts:A Case Study of Shangxiahang in Fuzhou City

Taking the revitalization strategy in conservation and renewal of Shangxiahang historical and cultural district as an example,the paper analyzes the main problems at the present stage and the main contradictions with urban development,and puts forward the revitalization practice for conservation and renewal of Shangxiahang historical district by using related revitalization theory and planning principles.Furthermore,the contemporary practicality of Shangxiahang district is increased on the basis of protection,giving play to its contemporary charm.