scholarly journals DOCUMENTATION OF STRUCTURAL DAMAGE AND MATERIAL DECAY PHENOMENA IN H-BIM SYSTEMS

2021 ◽  
Vol XLVI-M-1-2021 ◽  
pp. 375-382
Author(s):  
E. Lanzara ◽  
S. Scandurra ◽  
C. Musella ◽  
D. Palomba ◽  
A. di Luggo ◽  
...  
Keyword(s):  
Structural Damage ◽  
Structural Characteristics ◽  
Digital Tools ◽  
Research Activity ◽  
Descriptive Data ◽  
Built Heritage ◽  
Management Processes ◽  
Digital Management ◽  
Software House ◽  
Real Building

Abstract. The paper presents the results of an experimental research activity aimed to individuate digital tools for an intelligent mapping of structural and material decay of historical buildings.The activities carried out are part of the context of Scan-to-BIM processes, as they establish a workflow that, starting from 3D survey data, leads to an information model enriched by information related to the conservation state of surfaces and to the structural characteristics of the real building. The experimentation has been performed with the support of a software house, looking forward to turning this workflow into an actual implementation on a BIM software. In this regard, this research becomes part of the context of the studies concerned in the digital management processes of the historical built heritage, setting and testing specific parametrical objects that add to H-BIM models the possibility of documenting and sharing graphical, numerical and descriptive data of decay phenomena and, through integrative information sheets, damage phenomena.

scholarly journals The Integrated Project for the Redevelopment of a Historic Building

2020 ◽  
pp. 261-282
Author(s):  
Liala Baiardi ◽  
Emerson A. M. Ferreira
Keyword(s):  
New Technologies ◽  
Research Activity ◽  
Existing Building ◽  
Digital Revolution ◽  
Management Processes ◽  
Building Process ◽  
Market Needs ◽  
Effective Development ◽  
And Control ◽  
Building Project

In a scenario influenced by innovation and new technologies such as the internet of things (IoT) that have projected us towards industry 4.0, the digital revolution has involved the construction sector and the entire building process. This research activity aims to deepen the tools at the base of the design and management processes to an effective development and respect for the environment. The text will illustrate the example of redevelopment of an existing building in response to new market needs and in line with the circular economy vision. The redevelopment foresees the integrated development of the architectural building project and the management of the building during his entire life cycle. The innovation authors intend to achieve aims to combine building automation with the quality of life through management techniques that exploit the best use of space and control of the eco-system of the building and the services provided.

scholarly journals Oxidative Stress in the Healthy and Wounded Hepatocyte: A Cellular Organelles Perspective

2016 ◽  
Vol 2016 ◽  
pp. 1-15 ◽  
Author(s):  
Tommaso Mello ◽  
Francesca Zanieri ◽  
Elisabetta Ceni ◽  
Andrea Galli
Keyword(s):  
Oxidative Stress ◽  
Structural Damage ◽  
Redox State ◽  
Iron Homeostasis ◽  
Structural Integrity ◽  
Whole Body ◽  
Metabolic Demand ◽  
Research Activity ◽  
Cellular Compartments ◽  
Cellular Organelles

Accurate control of the cell redox state is mandatory for maintaining the structural integrity and physiological functions. This control is achieved both by a fine-tuned balance between prooxidant and anti-oxidant molecules and by spatial and temporal confinement of the oxidative species. The diverse cellular compartments each, although structurally and functionally related, actively maintain their own redox balance, which is necessary to fulfill specialized tasks. Many fundamental cellular processes such as insulin signaling, cell proliferation and differentiation and cell migration and adhesion, rely on localized changes in the redox state of signal transducers, which is mainly mediated by hydrogen peroxide (H2O2). Therefore, oxidative stress can also occur long before direct structural damage to cellular components, by disruption of the redox circuits that regulate the cellular organelles homeostasis. The hepatocyte is a systemic hub integrating the whole body metabolic demand, iron homeostasis and detoxification processes, all of which are redox-regulated processes. Imbalance of the hepatocyte’s organelles redox homeostasis underlies virtually any liver disease and is a field of intense research activity. This review recapitulates the evolving concept of oxidative stress in the diverse cellular compartments, highlighting the principle mechanisms of oxidative stress occurring in the healthy and wounded hepatocyte.

scholarly journals ADMINISTRATIVE-TERRITORIAL REFORM: TRANSFORMATION OF LOCAL SELF-GOVERNMENT IN THE REGIONAL CONTEXT (A CASE STUDY OF THE UDMURT REPUBLIC)

2021 ◽  
Vol 31 (4) ◽  
pp. 627-638
Author(s):  
R.M. Yamilov
Keyword(s):  
Rural Areas ◽  
Management System ◽  
Social Processes ◽  
Functional Optimization ◽  
Regional Context ◽  
Management Platform ◽  
Management Processes ◽  
Digital Management ◽  
Territorial Management ◽  
Udmurt Republic

Within the framework of this article, the transformation of local self-government in the regional context (on the example of the Udmurt Republic) is considered with some reservations. Two main tasks of the administrative-territorial reform are identified: the unification of municipal districts into enlarged municipal districts; and the level-by-level reconfiguration of management processes based on functional optimization. It is proposed to create six enlarged municipal districts in the Udmurt Republic. Mixed municipal areas are identified as a result of the combination of urban settlements and rural areas. Excessive administrative-territorial management in relation to rural areas of the Udmurt Republic is revealed. An enlarged scheme of functional optimization of administrative processes of administrative-territorial management is proposed. Quantitative optimization and qualitative (functional) optimization of administrative-territorial management are distinguished. The necessity of a single digital management platform as the basis of administrative-territorial reform is shown. The transition from a fractal management system to an antifractal management system is proposed through the functional optimization of management processes, in relation to which administrative and territorial management should be built. The necessity of compliance of administrative-territorial reform with digital management is shown. Brief examples of functional optimization in relation to regional educational social processes and in relation to regional agricultural social processes are given. The possible reduction of budget expenditures by 5.8 billion rubles relative to the expenditures of the consolidated budget of the Udmurt Republic for 2019 is calculated, which is 5.99 % of this budget in the traditional version of the regional reconfiguration of management processes

scholarly journals How Thumbelina Knows

2016 ◽  
Author(s):  
Giorgio De Michelis
Keyword(s):  
Knowledge Management ◽  
Observation Point ◽  
Education Level ◽  
Digital Tools ◽  
Direct Access ◽  
Conceptual Basis ◽  
Human Beings ◽  
Digital Revolution ◽  
Management Processes ◽  
Access To Knowledge

In this paper I take the book by Michel Serres “Thumbelina” as the occasion for a reflection on the conceptual basis of knowledge management, as it was built by Ikujiro Noanka and co-workers. The direct access to knowledge that Thumbelina practices together with her peers is, in fact, for me, a god observation point to bring the reflection of Nonaka further, towards the discovery of a new understanding of knowledge and knowing processes. If the digital revolution is third step after writing and printing, in the soft changes in the relations between human beings and knowledge, then it poses in an urgent manner the problem to deepen our understanding of what knowledge and intelligence are and to change our practice at the education level and to design new digital tools to support our knowledge management processes.

scholarly journals MINAT ORANG TUA MEMASUKAN ANAK KE SMA ISLAM TERPADU

Conciencia ◽  
1970 ◽  
Vol 18 (1) ◽  
pp. 29-38
Author(s):  
Muhammad Nur Agung Persada
Keyword(s):  
High School ◽  
Religious Education ◽  
Human Life ◽  
Descriptive Analysis ◽  
Study Data ◽  
Easy Access ◽  
Research Activity ◽  
Descriptive Data ◽  
Social Phenomena ◽  
Data Presentation

Education is a very important thing in human life. The progress of a nation depends on the education of the nation. This means that if the education of a nation can produce quality people physically and mentally, the nation will automatically progress, be peaceful and peaceful. This research is qualitative in nature with inductive thinking logic and the type is case studies, to obtain this data through interviews, observations, questionnaires and documentation. The sample of this study was 20 parents of students, this research activity is to describe intensively and in detail about the symptoms and social phenomena under study. Thus this study uses a descriptive analysis approach because the results of this research are descriptive data in the form of written or oral words and the results of research on parents of students who are the object of research to be observed as well as other matters relating to the problem under study. Data analysis is performed through three activities that occur simultaneously, namely data reduction, data presentation, drawing conclusions or verification. The results of this study indicate the main reason for parents interested in enrolling children in Izzuddin Integrated Islamic High School because of the application of the Islamic religious education system implemented by Izzuddin Integrated Islamic High School and there are also accompanying factors such as school modernization, easy access or because of the boarding. Expectations of parents of students sending their children to Izzuddin Integrated Islamic High School so that their children can understand religious teachings well not only theoretically but must be applicable.

scholarly journals Study on Structural Characteristics of Composite Smart Grille Based on Principal Component Analysis

2022 ◽  
Vol 2022 ◽  
pp. 1-11
Author(s):  
Kong Fanxiao ◽  
Yao Huazhong ◽  
Xie Weidong
Keyword(s):  
Principal Component Analysis ◽  
Structural Damage ◽  
Nearest Neighbor ◽  
Structural Characteristics ◽  
Principal Component ◽  
Composite Plates ◽  
Component Analysis ◽  
Triangular Grid ◽  
Grid Structure ◽  
Good Ability

In recent years, many scholars have conducted in-depth and extensive research on the mechanical properties, preparation methods, and structural optimization of grid structural materials. In this paper, the structural characteristics of composite intelligent grid are studied by combining theoretical analysis with experiments. According to the existing conditions in the laboratory, the equilateral triangular grid structure experimental pieces were prepared. In this paper, principal component analysis combined with nearest neighbor method was used to detect the damage of composite plates. On this basis, the multiobjective robustness optimization of the structure is carried out based on artificial intelligence algorithm, which makes the structure quality and its sensitivity to uncertain parameters lower. Particle swarm optimization (PSO) is used in neural network training. The damage characteristics of different grid structures, different impact positions, and different impact energies were studied. The results show that the structural damage types, areas, and propagation characteristics are very different when the structure is impacted at different positions, which verifies that the grid structure has a good ability to limit the damage diffusion and shows that the grid structure has a good ability to resist damage.

scholarly journals Fragility Analysis of RC Frame Structures Subjected to Obliquely Incident Seismic Waves

2021 ◽  
Vol 13 (3) ◽  
pp. 1108
Author(s):  
Bo Huang ◽  
Jiachen Guo ◽  
Kailong Liao ◽  
Yu Zhao
Keyword(s):  
Structural Damage ◽  
Seismic Waves ◽  
Incident Angle ◽  
Structural Characteristics ◽  
Frame Structure ◽  
Fragility Analysis ◽  
Exceedance Probability ◽  
Rc Frame ◽  
Foundation Soil ◽  
Obliquely Incident

Obliquely incident seismic waves have been habitually overlooked in fragility analysis. In this paper, a new approach to solving the equivalent loads on the infinite element boundary due to obliquely incident seismic waves is proposed. Based on the site conditions and structural characteristics in the Jiaxing area, the seismic response of a multi-story reinforced concrete (RC) frame structure has been fully investigated through the finite element method. Under obliquely incident SV waves (shear wave in the vertical x-z plane), the distribution of internal forces on the structure in the case of homogeneous foundation soil is significantly asymmetrical. Among the 3 obliquely incident angles investigated in this paper, the maximum inter-story displacement is smallest when the incident angle is 20° and largest when the angle equals 30°. For the structural fragility, the exceedance probability at each structural damage level is smallest when the incident reflection angle is 20° and largest when the angle equals 30°. When the structure is located in the silty valley, the influence of oblique incidence is attenuated and there is no obvious stress asymmetry on the structure due to the refraction of seismic waves on the interface.

scholarly journals Inelastic analysis of the imperial county services building

1983 ◽  
Vol 16 (2) ◽  
pp. 141-155
Author(s):  
Peter J. Moss ◽  
Athol J. Carr ◽  
Gerard C. Pardeon
Keyword(s):  
Structural Damage ◽  
Shear Walls ◽  
Ground Level ◽  
Transverse Component ◽  
Research Activity ◽  
Inelastic Analysis ◽  
Inelastic Behaviour ◽  
Time Histories ◽  
Analytical Time ◽  
County Services

Full scale ambient and forced vibration dynamic measurements
of buildings have become a continuing research activity over the last twenty years or so. One building that has been studied in such a
way was the Imperial County Services Building which was also instrumented with a number of seismographs. On the 15 October 1979, this building suffered major structural damage in a powerful earthquake. This paper briefly describes the ICSB and the damage that occurred, before discussing the computer models that were analysed to study the likely inelastic behaviour of the building. Though the analytical time histories do not show very good agreement with the seismograph results, they do show that the transverse component of the earthquake had a significant effect on the behaviour of the building on account of a non-symmetric arrangement of the ground floor shear walls in the transverse direction. Another factor was the placing of a ground
level slab above the detailed column hinges.

scholarly journals DIGITAL STORAGE AND THE DATA COLLECTION FOR THE SEISMIC PREVENTION: A COMPARISON FROM THE ITALIAN RECENT EXPERIENCES

2019 ◽  
Vol XLII-2/W11 ◽  
pp. 325-329
Author(s):  
E. Brusa
Keyword(s):  
Structural Characteristics ◽  
Unmanned Aerial Systems ◽  
The Public ◽  
Fire Brigade ◽  
Built Heritage ◽  
Digital Storage ◽  
Laser Scanners ◽  
Remotely Piloted Aircraft ◽  
Public Archives ◽  
Aerial Systems

<p><strong>Abstract.</strong> Concerning the care of our Built Heritage, one of the most important problem that was observed after an earthquake is the speed in the reaction, aiming to minimize the damages provoked by the shakes. As a matter of fact, the necessary time for the reaction of the rescue teams should be not too long, in order to avoid further damages provoked by the future shakes. Thus, the best way to minimize this type of damage is to design appropriate shoring systems that replace the lack of stiffness provoked by earthquake as soon as possible. In this sense, it’s necessary to know many information of a damaged monument, such as: the geometry, the materials and the structural characteristics, the presence of previous alterations and/or restorations, etc. Unfortunately, the accessibility to this kind of information is not always available after an earthquake, due to the possible damages provoked to the buildings, where the public archives and the documentation are normally stored (L’Aquila 2009, Amatrice 2016).</p><p>The awareness of this problem started immediately after the serious earthquake that hit the city of L’Aquila in 2009. Then, it became more urgent after 2016, when the extended and continued earthquake in the Centre of Italy provoked increasing damages to buildings and monuments. In particular, an important role in the churches’ collapses that had occurred during this last earthquake was due to the difficulty in finding the necessary information to design proper shoring systems.</p><p>Nowadays, starting from the experience of L’Aquila, teams composed by functionaries of the Ministry of Culture, engineers from different universities and special members of the Fire Brigade have developed and improved various models for the management of the emergency phases. Using the modern geomatics tools (i.e. Unmanned Aerial Systems (UAS), Terrestrial Laser Scanners (TLS), Remotely Piloted Aircraft Systems (RPAS)), it’s possible to achieve the digital acquisition of many building’s data and characteristics (i.e. through the 3D Object recognition and reconstruction, the point cloud analysis, etc.).</p><p>This article examines some of the most interesting solutions that were adopted after the recent Italian earthquakes (L’Aquila 2009, Emilia-Lombardia 2012, Centre of Italy 2016) by some of the major public Entities (Superintendences, Italian Fire Brigade). Moreover, it evaluates the possibility to enhance both the competences and the tools that have been until now developed, with the purpose to use them for an effective Built Heritage prevention, without having to wait a new emergency phase to adopt them.</p>

scholarly journals 3D Surveying of Underground Built Heritage: Opportunities and Challenges of Mobile Technologies

2021 ◽  
Vol 13 (23) ◽  
pp. 13289
Author(s):  
Francesco Di Stefano ◽  
Alessandro Torresani ◽  
Elisa M. Farella ◽  
Roberto Pierdicca ◽  
Fabio Menna ◽  
...  
Keyword(s):  
Mobile Systems ◽  
Mobile Technologies ◽  
Underground Structures ◽  
Research Activity ◽  
Built Heritage ◽  
Lighting Conditions ◽  
3D Data ◽  
Pros And Cons ◽  
Adequate Representation ◽  
3D Digitization

Among the existing Cultural Heritage settings, Underground Built Heritage (UBH) represents a peculiar case. The scarce or lack of knowledge and documentation of these spaces frequently limits their proper management, exploitation, and valorization. When mapping these environments for documentation purposes, the primary need is to achieve a complete, reliable, and adequate representation of the built spaces and their geometry. Terrestrial laser scanners were widely employed for this task, although the procedure is generally time-consuming and often lacks color information. Mobile Mapping Systems (MMSs) are nowadays fascinating and promising technologies for mapping underground structures, speeding up acquisition times. In this paper, mapping experiences (with two commercial tools and an in-house prototype) in UBH settings are presented, testing the different handheld mobile solutions to guarantee an accurate and reliable 3D digitization. Tests were performed in the selected case study of Camerano Caves (Italy), characterized by volumetric complexity, poor lighting conditions, and difficult accessibility. The aim of this research activity is not only to show the differences in the technological instruments used for 3D surveying, but rather to argue over the pros and cons of the systems, providing the community with best practices and rules for 3D data collection with handheld mobile systems. The experiments deliver promising results when compared with TLS data.

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