Low cost strategies for the environmental monitoring of Cultural Heritage: Preliminary data from the crypt of St. Francesco d’Assisi, Irsina (Basilicata, Southern Italy)

2014 ◽  
pp. 39-46
Keyword(s):  
Cultural Heritage ◽  
Environmental Monitoring ◽  
Preliminary Data ◽  
Southern Italy ◽  
Low Cost

scholarly journals Comparative Analysis of Digital Models of Objects of Cultural Heritage Obtained by the “3D SLS” and “SfM” Methods

2021 ◽  
Vol 11 (12) ◽  
pp. 5321
Author(s):  
Marcin Barszcz ◽  
Jerzy Montusiewicz ◽  
Magdalena Paśnikowska-Łukaszuk ◽  
Anna Sałamacha
Keyword(s):  
Cultural Heritage ◽  
Low Cost ◽  
Three Dimensional ◽  
3D Models ◽  
Silk Road ◽  
Digital Models ◽  
Global Pandemic ◽  
University Of Technology ◽  
Three Dimensional Models ◽  
3D Digitisation

In the era of the global pandemic caused by the COVID-19 virus, 3D digitisation of selected museum artefacts is becoming more and more frequent practice, but the vast majority is performed by specialised teams. The paper presents the results of comparative studies of 3D digital models of the same museum artefacts from the Silk Road area generated by two completely different technologies: Structure from Motion (SfM)—a method belonging to the so-called low-cost technologies—and by Structured-light 3D Scanning (3D SLS). Moreover, procedural differences in data acquisition and their processing to generate three-dimensional models are presented. Models built using a point cloud were created from data collected in the Afrasiyab museum in Samarkand (Uzbekistan) during “The 1st Scientific Expedition of the Lublin University of Technology to Central Asia” in 2017. Photos for creating 3D models in SfM technology were taken during a virtual expedition carried out under the “3D Digital Silk Road” program in 2021. The obtained results show that the quality of the 3D models generated with SfM differs from the models from the technology (3D SLS), but they may be placed in the galleries of the vitrual museum. The obtained models from SfM do not have information about their size, which means that they are not fully suitable for archiving purposes of cultural heritage, unlike the models from SLS.

Effect of Kaolin Particle Size Towards Preparation of Kaolin Ceramic Membrane

2021 ◽  
Vol 02 (01) ◽  
Author(s):  
Siti Khadijah Hubadillah ◽  
◽  
Norsiah Hami ◽  
Nurul Azita Salleh ◽  
Mohd Riduan Jamalludin ◽  
...  
Keyword(s):  
Particle Size ◽  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Field Emission ◽  
Preliminary Data ◽  
Membrane Structure ◽  
Ceramic Membrane ◽  
Low Cost ◽  
Dense Structure ◽  
Scanning Electron

The purpose of this work is to study the effect of kaolin particle size for the preparation of low cost ceramic membrane suspension and ceramic membrane structure. Kaolin particle size is categorized into two categories; i) ≤ 1µm and ii) ≥ 1 µm. The suspension is prepared via stirring technique under 1000 rpm at 60°C. The particle size of kaolin is characterized using field emission scanning electron microscope (FESEM) and the prepared suspension is characterized in term of its viscosity. Results indicate that the particle size gave significant effect to the viscosity of ceramic membrane suspension. Preliminary data showed that kaolin with particle size ≤ 1µm resulted ceramic membrane with dense structure.

scholarly journals An Application of Integrated 3D Technologies for Replicas in Cultural Heritage

2019 ◽  
Vol 8 (6) ◽  
pp. 285 ◽  
Author(s):  
Balletti ◽  
Ballarin
Keyword(s):  
3D Printing ◽  
Cultural Heritage ◽  
Laser Scanning ◽  
Low Cost ◽  
Three Dimensional ◽  
Digital Data ◽  
Survey Analysis ◽  
Critical Issues ◽  
Data Acquisition And Processing ◽  
Short Time

In recent decades, 3D acquisition by laser scanning or digital photogrammetry has become one of the standard methods of documenting cultural heritage, because it permits one to analyze the shape, geometry, and location of any artefact without necessarily coming into contact with it. The recording of three-dimensional metrical data of an asset allows one to preserve and monitor, but also to understand and explain the history and cultural heritage shared. In essence, it constitutes a digital archive of the state of an artefact, which can be used for various purposes, be remodeled, or kept safely stored. With the introduction of 3D printing, digital data can once again take on material form and become physical objects from the corresponding mathematical models in a relatively short time and often at low cost. This possibility has led to a different consideration of the concept of virtual data, no longer necessarily linked to simple visual fruition. The importance of creating high-resolution physical copies has been reassessed in light of different types of events that increasingly threaten the protection of cultural heritage. The aim of this research is to analyze the critical issues in the production process of the replicas, focusing on potential problems in data acquisition and processing and on the accuracy of the resulting 3D printing. The metric precision of the printed model with 3D technology are fundamental for everything concerning geomatics and must be related to the same characteristics of the digital model obtained through the survey analysis.

scholarly journals Regional Seismic Characterization of Shallow Subsoil of Northern Apulia (Southern Italy)

Geosciences ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 416
Author(s):  
Enrico Paolucci ◽  
Giuseppe Cavuoto ◽  
Giuseppe Cosentino ◽  
Monia Coltella ◽  
Maurizio Simionato ◽  
...  
Keyword(s):  
Southern Italy ◽  
Carbonate Platform ◽  
Low Cost ◽  
Principal Component ◽  
Ambient Vibration ◽  
Resonance Effects ◽  
Resonance Phenomena ◽  
Single Station ◽  
Seismic Characterization

A first-order seismic characterization of Northern Apulia (Southern Italy) has been provided by considering geological information and outcomes of a low-cost geophysical survey. In particular, 403 single-station ambient vibration measurements (HVSR techniques) distributed within the main settlements of the area have been considered to extract representative patterns deduced by Principal Component Analysis. The joint interpretation of these pieces of information allows the identification of three main domains (Gargano Promontory, Bradanic Through and Southern Apennines Fold and Thrust Belt), each characterized by specific seismic resonance phenomena. In particular, the Bradanic Through is homogeneously characterized by low frequency (<1 Hz) resonance effects associated with relatively deep (>100 m) seismic impedance, which is contrasting corresponding to the buried Apulian carbonate platform and/or sandy horizons located within the Plio-Pleistocene deposits. In the remaining ones, relatively high frequency (>1 Hz) resonance phenomena are ubiquitous due to the presence of shallower impedance contrasts (<100 m), which do not always correspond to the top of the geological bedrock. These general indications may be useful for a preliminary regional characterization of seismic response in the study area, which can be helpful for an effective planning of more detailed studies targeted to engineering purposes.

scholarly journals A high resolution multimedia environmental monitoring project at regional and local scale: the Campania region (southern Italy) case study

2021 ◽  
Author(s):  
Benedetto De Vivo ◽  
Stefano Albanese ◽  
Annamaria Lima ◽  
Domenico Cicchella ◽  
David Hope ◽  
...  
Keyword(s):  
High Resolution ◽  
Environmental Monitoring ◽  
Southern Italy ◽  
Local Scale ◽  
Campania Region

scholarly journals Development of an IoT System for Environmental Monitoring: Software

2021 ◽  
Author(s):  
Benjamin Secker
Keyword(s):  
Environmental Monitoring ◽  
Low Cost ◽  
Proof Of Concept ◽  
Embedded Devices ◽  
Data Loggers ◽  
Environmental Monitoring System ◽  
Use Of The Internet ◽  
High Level ◽  
Monitoring Software ◽  
The Internet Of Things

Use of the Internet of Things (IoT) is poised to be the next big advancement in environmental monitoring. We present the high-level software side of a proof-of-concept that demonstrates an end-to-end environmental monitoring system,<br><div>replacing Greater Wellington Regional Council’s expensive data loggers with low-cost, IoT centric embedded devices, and it’s supporting cloud platform. The proof-of-concept includes a Micropython-based software stack running on an ESP32 microcontroller. The device software includes a built-in webserver that hosts a responsive Web App for configuration of the device. Telemetry data is sent over Vodafone’s NB-IoT network and stored in Azure IoT Central, where it can be visualised and exported.</div><br>While future development is required for a production-ready system, the proof-of-concept justifies the use of modern IoT technologies for environmental monitoring. The open source nature of the project means that the knowledge gained can be re-used and modified to suit the use-cases for other organisations.

MICROORGANISMS AS INDICATORS OF SOIL QUALITY

2021 ◽  
pp. 45-50
Author(s):  
Kosumov R.S. ◽  
Okazova Z.P.
Keyword(s):  
Environmental Monitoring ◽  
First Generation ◽  
Low Cost ◽  
Toxicity Tests ◽  
Monitoring Methods ◽  
Unicellular Algae ◽  
Integrated Devices ◽  
Eukaryotic Organisms ◽  
Biological Methods ◽  
State Of The Environment

The first bioassays for environmental monitoring were based on multicellular eukaryotic organisms, in particular fish and mammals. Because they were relatively expensive, time consuming and difficult, there was a need for alternative biological monitoring methods. It became necessary to develop and standardize toxicity tests based on prokaryotic (bacteria) or eukaryotic (protozoa, unicellular algae, yeast) microorganisms instead of higher organisms, which made it possible to quickly and inexpensively screen environmental samples for toxic and genotoxic effects. The first generation of bioassays was based on a variety of naturally sensitive microbes, while the second generation includes genetically modified microorganisms to achieve greater sensitivity and / or specificity. The next step forward was the combination of microbial cells, or parts of cells, with physicochemical detection elements, forming new integrated devices called "biosensors". The purpose of the research is to study the possibility of using microorganisms in bioindication of environmental pollution. The use of biological methods in environmental monitoring is essential to complement chemical analyzes with information on actual toxicity. Microorganisms are widely used as test objects for analyzes due to the simplicity and low cost of their cultivation. The use of microorganisms for the assessment of general toxicity or the detection of specific compounds is an important source of information on the state of the environment. Their use will significantly expand the range of environmental studies.

Lithography Process Optimization for 3D and 2.5D Applications

2013 ◽  
Vol 2013 (1) ◽  
pp. 000790-000793 ◽  
Author(s):  
Doug Shelton ◽  
Tomii Kume
Keyword(s):  
High Resolution ◽  
Process Optimization ◽  
Preliminary Data ◽  
Mass Production ◽  
Low Cost ◽  
High Density ◽  
Through Silicon Via ◽  
Key Technology ◽  
Lithography Process ◽  
Advanced Packaging

Lithography process optimization is a key technology enabling mass production of high-density interconnects using 3D and 2.5D technologies. In this paper, Canon continues its investigation of lithography optimization of thick-resist profiles and overlay accuracy to increase process margins for Through-Silicon Via (TSV) and Redistribution Layer (RDL) applications. Canon will also provide updates on the FPA-5510iV and FPA-5510iZ i-line steppers that are gaining acceptance as high-resolution, and low-cost lithography solutions for aggressive advanced packaging, 3D and 2.5D applications also preliminary data illustrating 450 mm wafer process challenges.

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