npj Materials Degradation最新文献_第3页

Enhancing digital preservation of Indian art heritage through fusion based deep learning CBIR system 通过基于融合的深度学习CBIR系统加强印度艺术遗产的数字保护

2区材料科学

npj Materials Degradation Pub Date : 2025-09-24 DOI: 10.1038/s40494-025-01918-1

Meenu Garg, Sonam Aggarwal, Ashok Kumar, Rajat Kapila

{"title":"Enhancing digital preservation of Indian art heritage through fusion based deep learning CBIR system","authors":"Meenu Garg, Sonam Aggarwal, Ashok Kumar, Rajat Kapila","doi":"10.1038/s40494-025-01918-1","DOIUrl":"https://doi.org/10.1038/s40494-025-01918-1","url":null,"abstract":"In digital archives and cultural preservation, effective image retrieval from extensive datasets is critical. This study develops an efficient Content-Based Image Retrieval (CBIR) system for retrieving culturally significant Indian paintings, enhancing digital accessibility and preservation. It focuses on diverse styles like Gond, Pichwai, Madhubani, Mandla, and Warli. Traditional CBIR relies on handcrafted features, which are time-consuming and less effective. This study proposes a fusion approach using EfficientNetB0 and ResNet50, to enhance retrieval accuracy. Further, Recursive Feature Elimination (RFE) optimizes dimensionality reduction. Various distance metrics, including Hamming, Minkowski, cosine similarity, Jaccard, Euclidean, and Manhattan, compute similarity scores. Performance is assessed using precision, recall, and F1-score. The mean average values of precision, recall, and F1-score of the proposed CBIR system on the TIAPD dataset come out to be 91.64%, 18.17%, and 29.54% respectively. This research not only enhances retrieval accuracy but also contributes to the digital preservation of India’s artistic heritage.","PeriodicalId":19270,"journal":{"name":"npj Materials Degradation","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s40494-025-01918-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147890538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploration of stationery items unearthed from the Tomb of Murong Zhi of Tuyuhun in the Tang Dynasty 唐代土峪浑慕容之墓出土文具发掘

2区材料科学

npj Materials Degradation Pub Date : 2025-09-17 DOI: 10.1038/s40494-025-01989-0

Guoke Chen, Wenting Gu, Jian Ma, Feixiang Huang, Yan Wang, Yanfei Wei, Bingbing Liu, Yanrong Chen

{"title":"Exploration of stationery items unearthed from the Tomb of Murong Zhi of Tuyuhun in the Tang Dynasty","authors":"Guoke Chen, Wenting Gu, Jian Ma, Feixiang Huang, Yan Wang, Yanfei Wei, Bingbing Liu, Yanrong Chen","doi":"10.1038/s40494-025-01989-0","DOIUrl":"https://doi.org/10.1038/s40494-025-01989-0","url":null,"abstract":"The tomb of Murong Zhi, a prominent figure of the Tuyuhun Royal Family in the Wuzhou period, represents a significant archaeological discovery in China. Within this tomb, a diverse array of artifacts, including metal ware, wood lacquer items, textiles, and paper relics, have been meticulously unearthed. Noteworthy among these findings is a complete set of stationery, comprising a painted wooden box, writing brush, ink ingot, paper, inkstone, and writing brush holder. This study employs advanced analytical techniques such as SEM-EDS, OM, PLM, Micro-FTIR spectroscopy and Py-GC/MS to investigate the materials and manufacturing processes of these cultural relics. Analysis reveals that the writing brush, crafted from sheep hair, lacks a core, while the ink, bearing inscriptions, is derived from compressed pine wood ash. The distinctive yellow paper is identified to be made from bamboo fibers. This comprehensive examination of the stationery provides valuable physical evidence for understanding Tang Dynasty-era writing materials and techniques.","PeriodicalId":19270,"journal":{"name":"npj Materials Degradation","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s40494-025-01989-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147921243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Controllable degradation behavior, mechanical properties and biocompatibility of Mg-Sr-Mn alloys for the orthopedic medical applications 骨科用Mg-Sr-Mn合金的可控降解行为、力学性能和生物相容性

2区材料科学

npj Materials Degradation Pub Date : 2025-09-01 DOI: 10.1038/s41529-025-00658-8

Enci Niu, Jun Tong, Hua Lü, Sen Wang, Qiuyan Zhang, Jia She, Xianhua Chen

{"title":"Controllable degradation behavior, mechanical properties and biocompatibility of Mg-Sr-Mn alloys for the orthopedic medical applications","authors":"Enci Niu, Jun Tong, Hua Lü, Sen Wang, Qiuyan Zhang, Jia She, Xianhua Chen","doi":"10.1038/s41529-025-00658-8","DOIUrl":"https://doi.org/10.1038/s41529-025-00658-8","url":null,"abstract":"Orthopedic medical implants require matrix materials with moderate strength, low degradation rate and good biocompatibility. Magnesium (Mg) has emerged as a next-generation candidate for bone fixation; however, its rapid degradation leads to premature loss of mechanical integrity and implant-associated inflammation, limiting the clinical application of Mg alloys. In this study, we systematically investigated the mechanical properties, in vitro biodegradation behavior, biocompatibility and osteogenesis performance of newly developed novel extruded Mg-0.3Sr-xMn (SM alloy; x = 0, 0.4, 1.2, and 2.0 wt.%) alloys. Among them, the Mg-0.3Sr-0.4Mn alloy (SM04) demonstrated optimal comprehensive performance: its yield strength (205 MPa) and ultimate tensile strength (242 MPa) were 28% and 11.5% higher, respectively, compared to the Mg-0.3 Sr (SM0) alloy, while exhibiting a 54% reduction in corrosion rate (0.39 mm/year). Furthermore, the SM04 alloy maintained cell viability exceeding 90% and showed 2.46-fold higher alkaline phosphatase (ALP) activity than the SM0 alloy. However, excessive grain refinement, combined with weakened basal texture, may compromise corrosion resistance. Therefore, achieving an optimal composition and precisely engineering the microstructure are essential to balance mechanical properties, biodegradation rate, and biocompatibility. These findings suggest that Mg-Sr-Mn alloys hold great promise as advanced materials for orthopedic medical applications.","PeriodicalId":19270,"journal":{"name":"npj Materials Degradation","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41529-025-00658-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147922633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Study on the hygroscopicity and kinetic and thermodynamic properties of ancient Tibetan Palm Leaf Manuscripts 古藏棕榈叶手稿的吸湿性及动力学和热力学性质研究

2区材料科学

npj Materials Degradation Pub Date : 2025-08-23 DOI: 10.1038/s40494-025-01988-1

Wenjie Zhang, Shan Wang, Liuyang Han, Hong Guo

{"title":"Study on the hygroscopicity and kinetic and thermodynamic properties of ancient Tibetan Palm Leaf Manuscripts","authors":"Wenjie Zhang, Shan Wang, Liuyang Han, Hong Guo","doi":"10.1038/s40494-025-01988-1","DOIUrl":"https://doi.org/10.1038/s40494-025-01988-1","url":null,"abstract":"This study examines how natural aging affects the hygroscopic, kinetic, and thermodynamic properties of ancient Tibetan Palm Leaf Manuscripts. The results show aging increases equilibrium moisture content and hygroscopicity, with a noticeable hysteresis effect, suggesting enhanced moisture stability at low to moderate humidity. The GAB and H-H models indicate aging accelerates cellulose degradation, adds adsorption sites, and promotes physical adsorption. Kinetic studies reveal a faster moisture absorption and release rate with aging, especially under varying humidity. Thermodynamic analysis shows that as moisture content rises, the adsorption and desorption processes become more spontaneous. Infrared spectral analysis confirms significant degradation of cellulose and hemicellulose, increasing hydroxyl groups and hygroscopicity. The study suggests that these manuscripts are best preserved in a controlled environment with moderate humidity (50-60% RH) and cooler temperatures to maintain moisture stability and flexibility while preventing damage from excessive fluctuations.","PeriodicalId":19270,"journal":{"name":"npj Materials Degradation","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s40494-025-01988-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147333789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Design of F-ZIF-67/PDMS-based triboelectric nanogenerator for enhanced cathodic protection 用于增强阴极保护的F-ZIF-67/ pdm摩擦纳米发电机的设计

2区材料科学

npj Materials Degradation Pub Date : 2025-08-22 DOI: 10.1038/s41529-025-00662-y

Tengfei Xiang, Xuxin Chen, Jihuai Wang, Di Liu, Linjing Cui, Tao Wang, Zhenya Zhang, Yang Yang, Shihong Zhang

{"title":"Design of F-ZIF-67/PDMS-based triboelectric nanogenerator for enhanced cathodic protection","authors":"Tengfei Xiang, Xuxin Chen, Jihuai Wang, Di Liu, Linjing Cui, Tao Wang, Zhenya Zhang, Yang Yang, Shihong Zhang","doi":"10.1038/s41529-025-00662-y","DOIUrl":"https://doi.org/10.1038/s41529-025-00662-y","url":null,"abstract":"Metal corrosion poses significant economic and safety challenges across industries, necessitating efficient cathodic protection strategies. Triboelectric nanogenerator (TENG) offers a promising self-powered solution by harvesting ambient mechanical energy. This study presents the design of TENG based on fluorinated ZIF-67/PDMS (F-ZIF-67/PDMS) composites for enhanced cathodic protection of 304 stainless steel (304SS). The present study integrates dual regulation of microstructure and surface energy to synergistically enhance the triboelectric performance. While loading 5 wt.% ZIF-67, the TENG achieved remarkable output performance with an open-circuit voltage of 187.14 V, short-circuit current of 37.46 μA, and transferred charge of 72.54 nC, delivering a peak power of 3.08 mW. When integrated with a cathodic protection system, the TENG significantly reduced the open-circuit potential (OCP) and the corrosion rate. This work advances the integration of MOF-based triboelectric materials with energy harvesting technologies, offering a sustainable approach to mitigating metal corrosion.","PeriodicalId":19270,"journal":{"name":"npj Materials Degradation","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41529-025-00662-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147907353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 14

Multiple Bayesian models approach to assessing drivers of cultural heritage spatial distribution illustrated Lushan County in China 基于多元贝叶斯模型的文化遗产空间分布驱动因素评估——以庐山县为例

2区材料科学

npj Materials Degradation Pub Date : 2025-08-21 DOI: 10.1038/s40494-025-01941-2

Yuxi Liu, Xinyu Du, Yu Bai, Qibing Chen, Dong Liu

{"title":"Multiple Bayesian models approach to assessing drivers of cultural heritage spatial distribution illustrated Lushan County in China","authors":"Yuxi Liu, Xinyu Du, Yu Bai, Qibing Chen, Dong Liu","doi":"10.1038/s40494-025-01941-2","DOIUrl":"https://doi.org/10.1038/s40494-025-01941-2","url":null,"abstract":"Abstract Cultural heritage carries the material and cultural connotations of various historical periods. This study uses Bayesian modelling to assess the drivers on the spatial distribution of cultural heritage in Lushan County. The findings reveal that, first, the hierarchical Bayesian model effectively captures the heterogeneity of the drivers across heritage types and quantifies the variations in their intensities. Second, the spatial distribution shows a “south-dense, north-sparse” pattern. At the overall level, elevation, distance from settlements, and distance from cultural centers have a significant negative effect on heritage density, while distance from geological hazard sites has a significant positive effect. Third, social drivers exert a significantly greater effect than natural drivers, with their effect strengthening over time. Fourth, the significance of the regression coefficients, and the strength and direction of each driver’s effect, vary across different heritage types. These results provide data-driven methodological and theoretical references for cultural heritage research.","PeriodicalId":19270,"journal":{"name":"npj Materials Degradation","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s40494-025-01941-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147382148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

pH-responsive intrinsic self-healing coating via in-situ confined solid-liquid transition of hydrogel microdomains 基于水凝胶微畴原位固-液过渡的ph响应型自愈涂层

2区材料科学

npj Materials Degradation Pub Date : 2025-07-31 DOI: 10.1038/s41529-025-00656-w

Jie Yang, Ting Shen, Jiahong Wei, Chong Chen, Wenkai Cao, Weihua Li

{"title":"pH-responsive intrinsic self-healing coating via in-situ confined solid-liquid transition of hydrogel microdomains","authors":"Jie Yang, Ting Shen, Jiahong Wei, Chong Chen, Wenkai Cao, Weihua Li","doi":"10.1038/s41529-025-00656-w","DOIUrl":"https://doi.org/10.1038/s41529-025-00656-w","url":null,"abstract":"Inspired by pH variation in corrosion microenvironment and the emerging solid-liquid composite strategies, this study presents an innovative self-healing coating based on pH-responsive confined solid-liquid transition behavior, with anti-corrosion functionality as a proof of concept. The coating integrates poly (vinyl alcohol) (PVA) crosslinked with boronic acid (BA) through an in-situ solvent exchange process, forming borate ester-based, pH-responsive PVA-BA (AB) hydrogel microdomains within a poly (3-(trimethoxysilyl) propyl methacrylate) (PTPM) network. The AB/PTPM coating achieves healing within 30 min, based on gel-sol transitions of the AB hydrogel microdomains triggered by different pH conditions (pH = 7 and 11). The hydrophobic PTPM network prevents AB hydrogel microdomains from water intrusion. This design balances the fluidity and stability, providing a solution to enhance the durability of protective coatings. The AB/PTPM coating was applied as a topcoat over an epoxy (EP) primer, and the formed bilayer AB/PTPM@EP coating exhibits excellent anti-corrosion restoration properties after self-healing.","PeriodicalId":19270,"journal":{"name":"npj Materials Degradation","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41529-025-00656-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147908020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Authentic or restored: modern analytical tools in the dating of the Chinese scrolls from the Inner Mongolia 真品或修复品：内蒙古古卷年代测定的现代分析工具

2区材料科学

npj Materials Degradation Pub Date : 2025-07-07 DOI: 10.1038/s40494-025-01876-8

O. V. Polyakova, M. S. Kondratyeva, Li Zhuangzhi, Ming Gao, Viatcheslav B. Artaev, J. Shiel, Sarah Pugh, T. B. Latkin, Аlbert T. Lebedev

{"title":"Authentic or restored: modern analytical tools in the dating of the Chinese scrolls from the Inner Mongolia","authors":"O. V. Polyakova, M. S. Kondratyeva, Li Zhuangzhi, Ming Gao, Viatcheslav B. Artaev, J. Shiel, Sarah Pugh, T. B. Latkin, Аlbert T. Lebedev","doi":"10.1038/s40494-025-01876-8","DOIUrl":"https://doi.org/10.1038/s40494-025-01876-8","url":null,"abstract":"Abstract In 2014, 13 scrolls were found in Inner Mongolia, China. A visual examination indicated they likely originated sometime in the eleventh century. To validate their authenticity, an analytical study was performed. XRF was used to determine elemental distribution, while Gas Chromatography—High Resolution Mass Spectrometry was used to identify organic constituents. Most compounds found were azo dyes, together with their precursors and degradation products, modern glues, surfactants, etc. The presence of tea components suggested that the scrolls were artificially aged by treatment with tea, which is a well-known method of “aging” paper in China. The result suggests these scrolls were created during the second half of the twentieth century. Radiocarbon dating confirms they were likely created between 2013 and 2018, or between 1955 and 1957. Therefore, the use of modern analytical tools, in combination with traditional expert analysis, should be used to validate the authenticity and date of origin of artifacts.","PeriodicalId":19270,"journal":{"name":"npj Materials Degradation","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s40494-025-01876-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147334177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced non-invasive extraction of proteinaceous binders from painted artifacts using composite gellan gum 利用复合结冷胶增强从彩绘文物中非侵入性提取蛋白质粘合剂

2区材料科学

npj Materials Degradation Pub Date : 2025-06-20 DOI: 10.1038/s40494-025-01819-3

Jin Dong, Zhanyun Zhu, Xiaoxi Li, Desheng Lan, Jianhua Huang, Ping Zhou

引用次数: 2

Sublethal THPS accelerates Pseudomonas-associated steel corrosion by stimulating biofilm development and microbial electron uptake 亚致死THPS通过刺激生物膜发育和微生物电子吸收来加速假单胞菌相关的钢铁腐蚀

2区材料科学

npj Materials Degradation Pub Date : 2025-06-19 DOI: 10.1038/s41529-025-00625-3

Xin Shi, Yimeng Zhang, Ruiyong Zhang, Chengpeng Li, Can Wang, Xiao‐Lei Wang, Wolfgang Sand, Jizhou Duan

{"title":"Sublethal THPS accelerates Pseudomonas-associated steel corrosion by stimulating biofilm development and microbial electron uptake","authors":"Xin Shi, Yimeng Zhang, Ruiyong Zhang, Chengpeng Li, Can Wang, Xiao‐Lei Wang, Wolfgang Sand, Jizhou Duan","doi":"10.1038/s41529-025-00625-3","DOIUrl":"https://doi.org/10.1038/s41529-025-00625-3","url":null,"abstract":"Biocides are widely employed to mitigate microbiologically influenced corrosion (MIC) in oil and gas fields. However, improper biocide dosing may result in changes to the MIC. This study investigated the corrosion behavior of the biofilm-forming Pseudomonas stutzeri on X70 pipeline steel under sublethal concentrations of tetrakis(hydroxymethyl) phosphonium sulfate (THPS) using cell counting, weight loss measurements, surface characterization, and transcriptomic analysis. The results revealed that THPS accelerated the corrosion of X70 steel in the presence of P. stutzeri, compared to THPS-free conditions. While THPS inhibited the growth of planktonic cells, it promoted biofilm formation on the X70 steel surface. Transcriptomic data suggested that this corrosion acceleration could be attributed to metabolic alterations in P. stutzeri, potentially enhancing electron transfer between bacterial cells and the steel surface. These findings provide guidance for the rational application of biocides in industrial settings.","PeriodicalId":19270,"journal":{"name":"npj Materials Degradation","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41529-025-00625-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147883199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4