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Cultural heritage and earthquake: The case study of “Santa Maria Della Carità” in Ascoli Piceno

Open Civil engineering Journal 2017年 11卷 1079-1105页

作者： Clementi, Francesco Quagliarini, Enrico Monni, Francesco Giordano, Ersilia Lenci, Stefano Department of Civil and Building Engineering and Architecture (DICEA) Polytechnic University of Marche Ancona Italy

Background: In October 2016, two major earthquakes occurred in Marche region in the Centre of Italy, that resulted in widespread damage. The second one strokes Norcia, Visso, Arquata del Tronto, Accumoli and Amatrice, causing a lot of damages to cultural heritage of the cities of Tolentino, San Severino, Camerino and Ascoli Piceno, where the church of Santa Maria della Carità is located. Introduction: The church has high historical, architectural and social value for the city of Ascoli Piceno, because it is the only one that is opened to the devotees all time in the day and night. From the structural point of view, the church has a long and important annex to the north, which was later built with respect to the church, and after the L’Aquila earthquakes (2009) damages, the church was subjected to a retrofit intervention, in order to obtain a better “box-like behavior”. Objective: This paper addresses how the relevant annex influenced the seismic response of this historical complex and how, more generally, this kind of asymmetric mass may affect the behavior of historic churches. Results and Conclusion: The results indicate that the presence of annex plays a significant role in the dynamic response of the church and affects the distribution of damages in the whole building. The results of the seismic simulation agree with the observed damage. © 2017 Clementi et al.

关键词： 3D smeared crack model Earthquake loading FE Modelling Masonry church Nonlinear static analysis Retrofitting

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Author Correction: RhMYB108, an R2R3-MYB transcription factor, is involved in ethylene- and JA-induced petal senescence in rose plants

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Horticulture Research 2019年第1期6卷 1-2页

作者： Shuai Zhang Qingcui Zhao Daxing Zeng Jiehua Xu Hougao Zhou Fenglan Wang Nan Ma Yonghong Li School of Applied Chemistry and Biological Technology Postdoctoral Innovation Practice Base Shenzhen Polytechnic Shenzhen Guangdong China Shenzhen Key Laboratory of Fermentation Purification and Analysis Shenzhen Polytechnic Shenzhen Guangdong China College of Horticulture and Landscape Architecture Zhongkai University of Agriculture and Engineering Guangzhou Guangdong China China Beijing Key Laboratory of Development and Quality Control of Ornamental Crops Department of Ornamental Horticulture China Agricultural University Beijing China

After publication of our article[1],we became aware that there were errors in Fig.7b,namely the negative control of pLacZi+pJG4-5-RhMYB108(2nd row,panel 1).The error does not affect the result,discussion or conclusion... 详细信息

关键词： journal Figure conclusion

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The role of climate and urbanization in compound meteorological event exposure in China’s megacities

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Climate Risk Management 2025年

作者： Liling Chu Chao Xu Yanwen Wang Chaoqing Huang Zhaoliang Zeng Yilin Li Yiqi Zhou Qian Wu Pingan Jiang Xusheng Gong Yujia Hong Chao He College of Resources and Environment Yangtze University Wuhan 430100 China College of Resources and Environment Xinjiang Agricultural University Urumqi 830052 China Xinjiang Key Laboratory of Soil and Plant Ecological Processes Urumqi 830052 China Xinjiang Engineering Technology Research Center of Soil Big Data Urumqi 830052 China School of Economics and Management China University of Geosciences Wuhan 430074 China School of Tourism and Culture Guangdong Eco-Engineering Polytechnic Guangzhou 510520 China State Key Laboratory of Severe Weather Chinese Academy of Meteorological Sciences Beijing 100081 China School of Geography and Ocean Science Nanjing University Nanjing 210023 China School of Resource and Environmental Sciences Wuhan University Wuhan 430079 China Hubei University of Science and Technology Xianning 437100 China Department of Real Estate and Construction Favulty of Architecture The University of Hong Kong 9990777 Hong Kong China National Science Library (Wuhan) Chinese Academy of Sciences Wuhan 430071 China

Compound precipitation and wind speed extremes (CPWE) pose significant threats to the sustainable development of urban areas. This study investigated the spatial evolution characteristics, potential population exposure risk, and multidimensional inequality of CPWE within nine urban agglomerations in China, each containing at least one city with a GDP exceeding one trillion yuan, utilizing spatiotemporal statistics and attribution analysis. The results indicated that the intensity of CPWE in these urban agglomerations decreased from southeast to northwest, and the population exposed to mild, moderate, severe, and extreme levels accounted for 58 %, 28.3 %, 11.4 %, and 2.3 % of the total, respectively. Changes in exposure risk were driven by climate effect (58.29 % ± 12.77 %), followed by population (32.15 % ± 6.20 %) and interaction effect (9.55 % ± 5.14 %). Pearl River Delta (PRD) and Yangtze River Delta (YRD), identified as particularly vulnerable, experienced an increase in CPWE intensity exceeding 0.015 /10a. An increase of approximately 0.62 × 10 4 people per decade was observed for exposure risk, with over 20 % of the population facing severe or extreme levels, mainly due to the climate effect. CPWE exposure risk was significantly unequal across various dimensions (spatial autocorrelation: Moran’s I  = 0.3798, P  = 0.001; Gini coefficient: 0.08–0.5). Areas characterized by high-risk and balanced development (e.g., PRD, YRD) exhibited lower inequality, whereas regions featuring low-risk and concentrated development (e.g., GPZ) demonstrated higher inequality. The climate effect was the predominant influence in the low-risk areas as well as most high-risk areas. These findings support the targeted implementation of appropriate climate adaptation policies to promote regional sustainable development.

关键词： Compound precipitation and wind speed extremes (CPWE) Population exposure risk Multiscale inequality Exposure attribution China’s megacities

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Tourists’ motivations for practicing physical activity: a home-holiday comparison

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Journal of Sport and Tourism 2018年第3期22卷 207-226页

作者： Osti, Linda Cicero, Lucia Moreschini, Martina Faculty of Economics and Management Free University of Bolzano Piazzetta dell’Università 1 Brunico 39031 BZ Italy Department of Economics and Statistics Sciences University of Udine Via Tomadini 30 Udine UD Italy Polytechnic Department of Engineering and Architecture University of Udine Via delle Scienze 206 Udine UD Italy

The aim of the study is to examine motivations for practicing physical activity on holiday. In particular, the objective is to compare home habits to holiday experiences and identify differences and commonalities in individuals’ attitude towards physical activity. The methodological approach is to conduct a survey among tourists during a holiday stay by employing a self-administered questionnaire. Findings identify three motivational factors (Decompress, Performance and Shape) and a cluster analysis reveals the coexistence of four different profiles of physical activity performers (Shapers, All-around Pursuers, Sport Performers and Decompress Seekers). Results show diffuse distinctiveness of motivations for practicing physical activity on holiday compared to the motivations for practicing it at home. Specifically, Decompress motives increase and Shape motives decrease. The study contributes to deepen the knowledge on consumer behaviour in leisure and holiday and provides useful insights to destination managers and policy-maker to address the sport tourism market. © 2018, © 2018 Informa UK Limited, trading as Taylor & Francis Group.

关键词： consumer behaviour home-holiday gap motivational factors Physical activity sport tourism

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Numerical simulations of the vulcanization process of a low cost elastomeric seismic isolator

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AIP Conference Proceedings 2022年第1期2425卷

作者： Gabriele Milani Federico Milani Ahmad B. Habieb Renato Cerchiaro 1Department of Architecture Built Environment and Construction Engineering (A. B. C.) Polytechnic University of Milan Piazza Leonardo da Vinci 32 20133 Milan Italy 2Chem.Co. Consultant Via JF Kennedy 2 45030 Occhiobello RO Italy 3Institut Teknologi Sepuluh Nopember Jalan Teknik Kimia 1 60111 Surabaya Indonesia 4Dergom S.R.L Via dei Castagni 3/5 23846 Garbagnate Monastero LC Italy

A 3D numerical model based on finite differences is proposed to predict the degree of vulcanization of a Fiber Reinforced Elastomeric Isolator FREI constituted by five EPDM pads and four GFRP laminas interposed between contiguous pads. EPDM used is composed by 2/3 of regenerated rubber and 1/3 of virgin rubber. A prototype is cured at 130°C for 40 minutes and shore A hardness is measured in the central cross section on two points, the first located in the middle, the second near the corner. It is found that the crosslinking density obtained is suboptimal (but still acceptable for an engineering point of view) and that it is required to increase the vulcanization temperature to 150°C to obtain a full and homogeneous curing.

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Antihelium-3 fluxes near Earth using data-driven estimates for annihilation cross section 37

Antihelium-3 fluxes near Earth using data-driven estimates f...

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37th International Cosmic Ray Conference, ICRC 2021

作者： Acharya, S. Adamová, D. Adler, A. Aglieri Rinella, G. Agnello, M. Agrawal, N. Ahammed, Z. Ahmad, S. Ahn, S.U. Ahuja, I. Akbar, Z. Akindinov, A. Al-Turany, M. Alam, S.N. Aleksandrov, D. Alessandro, B. Alfanda, H.M. Alfaro Molina, R. Ali, B. Ali, Y. Alici, A. Alizadehvandchali, N. Alkin, A. Alme, J. Alt, T. Altenkamper, L. Altsybeev, I. Anaam, M.N. Andrei, C. Andreou, D. Andronic, A. Angeletti, M. Anguelov, V. Antinori, F. Antonioli, P. Anuj, C. Apadula, N. Aphecetche, L. Appelshäuser, H. Arcelli, S. Arnaldi, R. Arsene, I.C. Arslandok, M. Augustinus, A. Averbeck, R. Aziz, S. Azmi, M.D. Badalà, A. Baek, Y.W. Bai, X. Bailhache, R. Bailung, Y. Bala, R. Balbino, A. Baldisseri, A. Balis, B. Ball, M. Banerjee, D. Barbera, R. Barioglio, L. Barlou, M. Barnaföldi, G.G. Barnby, L.S. Barret, V. Bartels, C. Barth, K. Bartsch, E. Baruffaldi, F. Bastid, N. Basu, S. Batigne, G. Batyunya, B. Bauri, D. Bazo Alba, J.L. Bearden, I.G. Beattie, C. Belikov, I. Bell Hechavarria, A.D.C. Bellini, F. Bellwied, R. Belokurova, S. Belyaev, V. Bencedi, G. Beole, S. Bercuci, A. Berdnikov, Y. Berdnikova, A. Bergmann, L. Besoiu, M.G. Betev, L. Bhaduri, P.P. Bhasin, A. Bhat, I.R. Bhat, M.A. Bhattacharjee, B. Bhattacharya, P. Bianchi, L. Bianchi, N. Bielčík, J. Bielčíková, J. Biernat, J. Bilandzic, A. Biro, G. Biswas, S. Blair, J.T. Blau, D. Blidaru, M.B. Blume, C. Boca, G. Bock, F. Bogdanov, A. Boi, S. Bok, J. Boldizsár, L. Bolozdynya, A. Bombara, M. Bond, P.M. Bonomi, G. Borel, H. Borissov, A. Bossi, H. Botta, E. Bratrud, L. Braun-Munzinger, P. Bregant, M. Broz, M. Bruno, G.E. Buckland, M.D. Budnikov, D. Buesching, H. Bufalino, S. Bugnon, O. Buhler, P. Buthelezi, Z. Butt, J.B. Bylinkin, A. Bysiak, S.A. Cai, M. Caines, H. Caliva, A. Calvo Villar, E. Camacho, J.M.M. Camacho, R.S. Camerini, P. Canedo, F.D.M. Carnesecchi, F. Caron, R. Castillo Castellanos, J. Casula, E.A.R. Catalano, F. Ceballos Sanchez, C. Chakraborty, P. Chandra, S. The Technical University of Munich James-Franck-Str. 1 Garching Germany Bologna Italy Dipartimento DET del Politecnico di Torino Turin Italy M.V. Lomonosov Moscow State University D.V. Skobeltsyn Institute of Nuclear Physics Moscow Russia Department of Applied Physics Aligarh Muslim University Aligarh India Institute of Theoretical Physics University of Wroclaw Poland University of Kansas LawrenceKS United States Foundation Yerevan Armenia AGH University of Science and Technology Cracow Poland Bogolyubov Institute for Theoretical Physics National Academy of Sciences of Ukraine Kiev Ukraine Kolkata India Budker Institute for Nuclear Physics Novosibirsk Russia California Polytechnic State University San Luis ObispoCA United States Central China Normal University Wuhan China Havana Cuba Mérida Mexico City Mexico Chicago State University ChicagoIL United States China Institute of Atomic Energy Beijing China Chungbuk National University Cheongju Korea Republic of Comenius University Bratislava Faculty of Mathematics Physics and Informatics Bratislava Slovakia COMSATS University Islamabad Islamabad Pakistan Creighton University OmahaNE United States Department of Physics Aligarh Muslim University Aligarh India Department of Physics Pusan National University Pusan Korea Republic of Department of Physics Sejong University Seoul Korea Republic of Department of Physics University of California BerkeleyCA United States Department of Physics University of Oslo Oslo Norway Department of Physics and Technology University of Bergen Bergen Norway Dipartimento di Fisica dell’Università’La Sapienza’ and Sezione INFN Rome Italy Dipartimento di Fisica dell’Università and Sezione INFN Cagliari Italy Dipartimento di Fisica dell’Università and Sezione INFN Trieste Italy Dipartimento di Fisica dell’Università and Sezione INFN Turin Italy Dipartimento di Fisica e Astronomia dell’Università and Sezione INFN Bologna Italy Dipartimento di Fisica e As

Antinuclei found in cosmic rays could provide a smoking gun signal for dark matter as this signal is virtually background free. The study of 3He cosmic rays requires the knowledge of their production, propagation in the galaxy and annihilation cross-section. While the former two have been already estimated with data-driven methods, there were no experimental data available for the 3He inelastic cross section. We measured for the first time the inelastic cross section of 3He using the ALICE detector itself as a target. To study the effect of 3He annihilation in the galaxy and estimate the transparency of the galaxy, the 3He source functions and annihilation cross sections were implemented in GALPROP. © Copyright owned by the author(s) under the terms of the Creative Commons.

关键词： Galaxies

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Numerical Characterization of High Modulus Asphalt Concrete Containing RAP: A Comparison among Optimized Shallow Neural Models

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IOP Conference Series: Materials Science and engineering 2020年第2期960卷

作者： Nicola Baldo Jan Valentin Evangelos Manthos Matteo Miani Polytechnic Department of Engineering and Architecture (DPIA) University of Udine Via del Cotonificio 114 33100 Udine Italy Faculty of Civil Engineering Czech Technical University in Prague Thákurova 7 166 29 Prague Czech Republic Department of Civil Engineering Aristotle University of Thessaloniki University Campus 54124 Thessaloniki Greece

Knowing the relationship between the stiffness modulus and the empirical mechanical characteristics of asphalt concrete, road engineers may predict the expected results of costly laboratory tests and save both time and financial resources in the mix design phase. In fact, such a model would make it possible to assess a priori whether the stiffness of a specific mixture, characterised in the laboratory only by the common Marshall test, is suitable for the level of service required by the road pavement under analysis. In this study, 54 Marshall test specimens of high modulus asphalt concrete were prepared and tested in the laboratory to determine an empirical relationship between the stiffness modulus and Marshall stability by means of shallow artificial neural networks. Part out of these mixtures was characterised by different types of bitumen (20/30 or 50/70 penetration grade) and percentages of used reclaimed asphalt (RAP at 20% or 30%); a polymer modified bitumen was used in the preparation of the remaining Marshall test specimens, which do not contain RAP. For the complex and laborious identification of the neural model hyperparameters, which define its architecture and algorithmic functioning, the Bayesian optimization approach has been adopted. Although the results of this methodology depend on the predefined hyperparameters variability ranges, it allows an unbiased definition of the optimal neural model characteristics to be performed by minimizing (or maximizing) a loss function. In this study, the mean square error on 5 validation folds was used as a loss function, in order to avoid a poor performance evaluation due to the small number of samples. In addition, 3 different neural training algorithms were applied to compare results and convergence times. The procedure presented in this study is a valuable guide for the development of predictive models of asphalt concretes' behaviour, even for different types of bitumen and aggregates considered here.

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Verification of an energy-based design procedure for seismic retrofit of a school building

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Procedia Structural Integrity 2018年 11卷 161-168页

作者： Gloria Terenzi Iacopo Costoli Stefano Sorace Paolo Spinelli Department of Civil and Environmental Engineering University of Florence Via S. Marta 3 50139 Florence Italy Polytechnic Department of Engineering and Architecture University of Udine Via delle Scienze 206 33100 Udine Italy

A viable design criterion of supplemental damping strategies for seismic retrofit of frame structures, recently proposed by the first author (Terenzi, 2018), is applied in this paper to a school building in Florence dating back to the early 1980s. The building is composed of two portions, with reinforced concrete and steel frame structure, respectively. Similarly to several other buildings of the same period, the structure is infilled by heavy reinforced concrete panels interacting with the frame elements under horizontal loads. A careful reconstruction of the structural characteristics of the constituting members, based on the original design documentation and on-site testing campaigns, highlighted specific drawbacks in current state, related to a remarkable degration of the materials and a poor performance of several elements. The retrofit solution considered in this study consists in removing the infill panels and replacing them with a set of dissipative braces incorporating fluid viscous dampers as protective devices. The design is carried out by the sizing criterion mentioned above, targeting an elastic structural response up to the maximum considered earthquake normative level.

关键词： Seismic retrofit supplemental damping energy-based design procedures school buildings

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Corrigendum to “Effect of the source concrete with ASR degradation on the mechanical and physical properties of coarse recycled aggregate” [Cement Concr. Compos. (2020) 103621]

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Cement and Concrete Composites 2020年 114卷

作者： M. Barreto Santos J. de Brito A. Santos Silva A. Hawreen Department of Civil Engineering School of Technology and Management Polytechnic of Leiria Campus 2 - Morro do Lena - Alto do Vieiro P-4163-2411-901 Leiria Portugal CERIS Department of Civil Engineering Architecture & Georesources Instituto Superior Técnico University of Lisbon Av. Rovisco Pais 1049-001 Lisbon Portugal Department of Materials National Laboratory for Civil Engineering Avenida do Brasil 101 P-1700-066 Lisbon Portugal Department of Civil Engineering Technical Engineering College Erbil Polytechnic University Kurdistan Region Erbil Iraq

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Stability analysis in milling by taking into account the influence of forced vibrations on the actual tool-workpiece engagement conditions

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Procedia CIRP 2018年 77卷 453-456页

作者： Giovanni Totis Tamas Insperger Gabor Stepan Marco Sortino Polytechnic Department of Engineering and Architecture University of Udine Via delle Scienze 206 33100 Udine Italy Department of Applied Mechanics Budapest University of Technology and Economics Budapest Hungary

In order to increase the material removal rate in milling, advanced cutting tools with complex geometry are typically applied under extreme cutting conditions which may trigger undesired chatter vibrations of the machining system. Recently some dynamic milling models were proposed in the literature which take into account the higher geometrical complexity of these tools. In these works, the tool-workpiece engagement conditions are computed from a purely geometric-kinematic analysis of the milling operation. Moreoever, they are kept constant throughout the stability analysis, independently from any possible increase of the axial depth of cut. In many cases the experimental validation of the proposed models is incomplete. In this work a novel methodology for assessing milling stability is presented, which is based on the correct linearization of the regenerative perturbations around the actual steady state forced vibrations. When the axial depth of cut is progressively increased, the resulting forced vibrations may cause a variation of each tooth-workpiece contact conditions, thus influencing the process dynamic behavior. This effect is more dominant when the degree of symmetry is poor as in the case of variable pitch cutters, when there is significant teeth runout, and when the average chip thickness is concurrently very small as in peripheral milling. The proposed approach for chatter prediction consists of an incremental linear stability analysis which does progressively adapt to the gradually increasing depth of cut up to the stability border. The concept was successfully verified with experimental cutting tests.

关键词： Milling Tool Dynamics Chatter Prediction Forced Vibrations Regenerative Vibrations

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