XRF Imaging (MA-XRF) as a Valuable Method in the Analysis of Nonhomogeneous Structures of Grisaille Paint Layers

Heritage ◽  
2021 ◽  
Vol 4 (4) ◽  
pp. 3193-3207
Author(s):  
Edyta Bernady ◽  
Maria Goryl ◽  
Małgorzata Walczak
Keyword(s):  
Experimental Methodology ◽  
Light Elements ◽  
Stained Glass ◽  
Valuable Data ◽  
Additional Information ◽  
Xrf Scanning ◽  
Valuable Method ◽  
Glass Panels ◽  
Quantitative Results ◽  
Non Destructive

Stained glass paint layers made with vitreous paints can be a challenging subject for analyses. Their heterogenic structure requires proper experimental methodology in order to obtain valuable data. The main goal of this paper is to present the advantages of macro-XRF scanning (MA-XRF) in the non-destructive investigation of historical grisaille paint layers on the basis of research conducted on seven stained glass panels from the Dominican Monastery in Kraków, the Diocesan Museum in Kielce and the National Museum in Poznań (Poland). The obtained results showed the capabilities of MA-XRF scanning in technology recognition, the legibility of damaged fragments of painted depictions, as well as with distinguishing the elemental composition between vitreous paints in different colours. Additionally, SEM-EDS measurements are presented so as to acquire quantitative results and additional information concerning light elements.

Chemical imaging of stained-glass windows by means of macro X-ray fluorescence (MA-XRF) scanning

2016 ◽  
Vol 124 ◽  
pp. 615-622 ◽  
Author(s):  
Geert Van der Snickt ◽  
Stijn Legrand ◽  
Joost Caen ◽  
Frederik Vanmeert ◽  
Matthias Alfeld ◽  
...  
Keyword(s):  
Chemical Imaging ◽  
Stained Glass ◽  
X Ray ◽  
Xrf Scanning

Textile Museum Collections. SIM Method Validation for the Assessment of Pesticides

2021 ◽  
Vol 58 (3) ◽  
pp. 1-10
Author(s):  
Elena-Cornelia Mitran ◽  
Irina-Mariana Sandulache ◽  
Cristina-Mihaela Lite ◽  
Lucian Gabriel Radu
Keyword(s):  
Analytical Techniques ◽  
High Sensitivity ◽  
Pest Infestation ◽  
Accuracy And Precision ◽  
Cis And Trans Isomers ◽  
Quantitative Results ◽  
Cis And Trans ◽  
High Degree ◽  
Non Destructive ◽  
Detection And Quantification

In time the environmental conditions could damage textiles (materials/ artifacts) causing the need to develop better non-destructive or at least micro-destructive analysis techniques of the samples. There are ethnographic textile artifacts that were treated in the past with various pesticides, that have not been mentioned in any document. These are often re-treated with chemicals by museum staff as a method of preventing pest infestation. Due to the progressive use of many pesticides, this paper was focused on the detection and quantification of three pesticides: malathion, methoxychlor, and permethrin (cis- and trans- isomers). Gas chromatography is one of the most widely used analytical techniques for characterizing volatile organic compounds and therefore was the analytical method of choice for the present study. Because these analytes are found at trace levels, the detection and quantification limits of analytes are very small and it is necessary to optimize and validate a SIM method - that allows the mass spectrometer to detect specific compounds with high sensitivity. In SIM mode, the instrument is set to collect data at selected masses of interest, thus increasing the accuracy and precision of the quantitative results. The present paper is aimed to develop this type of method with specificity and selectivity, high precision (expressed in terms of repeatability and intermediate accuracy), accuracy, suitable working range and linearity, and high degree of series� homogenity.

On non-destructive residual stress measurement in glass panels

2010 ◽  
Vol 16 (2) ◽  
pp. 150 ◽  
Author(s):  
H Aben ◽  
J Anton ◽  
A Errapart ◽  
S Hödemann ◽  
J Kikas ◽  
...  
Keyword(s):  
Residual Stress ◽  
Stress Measurement ◽  
Residual Stress Measurement ◽  
Glass Panels ◽  
Non Destructive

scholarly journals Archaeometric investigations of medieval stained glass panels from Grodziec in Poland

2017 ◽  
Author(s):  
Dariusz Wilk ◽  
◽  
Marta Kamińska ◽  
Małgorzata Walczak ◽  
Ewa Bulska ◽  
...  
Keyword(s):  
Stained Glass ◽  
Glass Panels

scholarly journals Fast quantification of extracellular vesicles levels in early breast cancer patients by Single Molecule Detection Array (SiMoA)

2021 ◽  
Author(s):  
Carlo Morasso ◽  
Alessandra Ricciardi ◽  
Daisy Sproviero ◽  
Marta Truffi ◽  
Sara Albasini ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Extracellular Vesicles ◽  
Single Molecule ◽  
Cancer Surgery ◽  
Breast Cancer Patients ◽  
Additional Information ◽  
Before And After ◽  
Quantitative Results ◽  
Baseline Values ◽  
After Cancer

Abstract Purpose Preliminary reports suggest that extracellular vesicles (EVs) might be a promising biomarker for breast cancer (BC). However, the quantification of plasmatic levels of EVs is a complex task. To overcome these limitations, we developed a new, fast, and easy to use assay for the quantification of EVs directly in plasma based on the use of Single-Molecule Array (SiMoA). Methods By using SiMoA to identify CD9+/CD63+ EVs, we analyzed plasma samples of 181 subjects (95 BC and 86 healthy controls, HC). A calibration curve, made of a serial dilution of lyophilized standards from human plasma, was used in each run to ensure the obtainment of quantitative results from the assay. In a subgroup of patients, EVs concentrations were estimated in plasma before and after 30 days from cancer surgery. Additional information on the size of EVs were also acquired using a Nanosight system to obtain a clearer understanding of the mechanism underlying the releases of EVs associated with the presence of cancer. Results The measured levels of EVs resulted significantly higher in BC patients (median values 1179.1 ng/µl vs 613.0 ng/µl, p < 0.0001). ROC curve was used to define the optimal cut-off level of the test at 1034.5 ng/µl with an AUC of 0.75 [95% CI 0.68–0.82]. EVs plasmatic concentrations significantly decreased after cancer surgery compared to baseline values (p = 0.014). No correlation was found between EVs concentration and clinical features of BC. Conclusion SiMoA assay allows plasmatic EVs levels detection directly without any prior processing. EVs levels are significantly higher in BC patients and significantly decreases after cancer surgery.

scholarly journals Visual Participatory Analysis: A Qualitative Method for Engaging Participants in Interpreting the Results of Randomized Controlled Trials of Health Interventions

2020 ◽  
Vol 15 (1) ◽  
pp. 18-36 ◽  
Author(s):  
Jenevieve Mannell ◽  
Katy Davis ◽  
Kohenour Akter ◽  
Hannah Jennings ◽  
Joanna Morrison ◽  
...  
Keyword(s):  
Randomized Controlled Trials ◽  
Qualitative Method ◽  
Controlled Trial ◽  
Controlled Trials ◽  
Randomized Controlled ◽  
Valuable Method ◽  
Unique Method ◽  
Quantitative Results ◽  
Participant Perspectives ◽  
Participatory Analysis

This article contributes to the field of mixed methods by introducing a new method for eliciting participant perspectives of the quantitative results of randomized controlled trials. Participants are rarely asked to interpret trial results, obscuring potentially valuable information about why a trial either succeeds or fails. We introduce a unique method called visual participatory analysis and discuss the insights gained in its use as part of a trial to prevent risk and reduce the prevalence of diabetes in Bangladesh. Findings highlight benefits such as elucidating contextualized explanations for null results and identifying causal mechanisms, as well as challenges around communicating randomized controlled trial methodologies to lay audiences. We conclude that visual participatory analysis is a valuable method to use after a trial.

Applying of dynamic acoustic signal attributes for evaluation of the contact between pile and soils

2020 ◽  
pp. 126-137
Author(s):  
V. V. Kapustin ◽  
A. A. Churkin
Keyword(s):  
Data Analysis ◽  
Static Load ◽  
Geophysical Methods ◽  
Additional Information ◽  
Integrity Testing ◽  
Testing Data ◽  
Load Tests ◽  
Dynamic Attributes ◽  
Non Destructive ◽  
Pile Integrity

The low-strain impact method is one of the most commonly used non-destructive geophysical methods in pile integrity testing. Data analysis of the low-strain method in the frequency domain allows the researcher to get additional information about the studied foundation. The authors of the article propose a methodology for assessing the contact of piles with soils based on an analysis of the dynamic attributes of the frequency response. Conclusions drawn from using the above-described method can be used by engineers to study piles quality and to plan direct static load tests to determine the bearing capacity of piles.

scholarly journals Can XRF scanning of speleothems be used as a non-destructive method to identify paleoflood events in caves?

2015 ◽  
Vol 44 (1) ◽  
pp. 17-23 ◽  
Author(s):  
Martin Finné ◽  
Malin Kylander ◽  
Meighan Boyd ◽  
Hanna Sundqvist ◽  
Ludvig Löwemark
Keyword(s):  
Xrf Scanning ◽  
Non Destructive
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