The study of the mural painting in the 12th century monastery of Santa Maria delle Cerrate (Puglia-Italy): characterization of materials and techniques used

2013 ◽  
Vol 44 (6) ◽  
pp. 899-904 ◽  
Author(s):  
Giuseppe E. De Benedetto ◽  
Daniela Fico ◽  
Eleonora Margapoti ◽  
Antonio Pennetta ◽  
Antonio Cassiano ◽  
...  
Keyword(s):  
Mural Painting ◽  
12Th Century ◽  
Characterization Of Materials ◽  
Santa Maria

scholarly journals An Enhanced GC/MS Procedure for the Identification of Proteins in Paint Microsamples

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
D. Fico ◽  
E. Margapoti ◽  
A. Pennetta ◽  
G. E. De Benedetto
Keyword(s):  
Chemical Characterization ◽  
Binding Medium ◽  
Secondary Products ◽  
Works Of Art ◽  
12Th Century ◽  
Materials Used ◽  
Characterization Of Materials ◽  
Artistic Heritage ◽  
Santa Maria

The chemical characterization of materials used in works of art is extremely useful for gaining a better knowledge of the artistic heritage and to guarantee its preservation. A derivatization GC/MS procedure for the identification of proteins in a microsample from painted works of art has been optimized. The amino acid fraction is derivatized using anhydrous dimethylformamide (DMF) as solvent instead of pyridine (Py), commonly used to facilitate the reaction. Although pyridine is often considered a silylation catalyst, there are many instances in which silylation reactions actually are slower in pyridine than other solvents. In addition, pyridine also may have other undesirable effects such as the promotion of secondary products and other chromatographic anomalies. Using DMF, the formation of artifacts is limited and the derivatization yield of hydrophilic amino acids such as proline and hydroxyproline has improved, thus making the identification of organic paint media more straightforward. The method has been validated and successfully applied to identify the binder of the sample taken from the pictorial cycle of the 12th century monastery of Santa Maria delle Cerrate (Lecce, Italy), thus highlighting the use of eggs as a binding medium.

Some applications of electron beam microanalysis techniques in VLSI process evaluation

1983 ◽  
Vol 41 ◽  
pp. 160-161
Author(s):  
Simon Thomas
Keyword(s):  
Integrated Circuits ◽  
Process Evaluation ◽  
Large Scale ◽  
Technology Development ◽  
Analytical Techniques ◽  
Successful Implementation ◽  
Analysis Of Failures ◽  
Characterization Of Materials ◽  
Circuits Vlsi

Trends in the technology development of very large scale integrated circuits (VLSI) have been in the direction of higher density of components with smaller dimensions. The scaling down of device dimensions has been not only laterally but also in depth. Such efforts in miniaturization bring with them new developments in materials and processing. Successful implementation of these efforts is, to a large extent, dependent on the proper understanding of the material properties, process technologies and reliability issues, through adequate analytical studies. The analytical instrumentation technology has, fortunately, kept pace with the basic requirements of devices with lateral dimensions in the micron/ submicron range and depths of the order of nonometers. Often, newer analytical techniques have emerged or the more conventional techniques have been adapted to meet the more stringent requirements. As such, a variety of analytical techniques are available today to aid an analyst in the efforts of VLSI process evaluation. Generally such analytical efforts are divided into the characterization of materials, evaluation of processing steps and the analysis of failures.

Applications of ultramicrotomy for materials characterization

1993 ◽  
Vol 51 ◽  
pp. 232-233
Author(s):  
R.T. Blackham ◽  
J.J. Haugh ◽  
C.W. Hughes ◽  
M.G. Burke
Keyword(s):  
Materials Science ◽  
Microstructural Analysis ◽  
Analytical Electron Microscopy ◽  
Austenitic Stainless Steels ◽  
Specimen Preparation ◽  
Preparation Technique ◽  
Thermally Induced ◽  
Radiation Induced ◽  
Characterization Of Materials

Essential to the characterization of materials using analytical electron microscopy (AEM) techniques is the specimen itself. Without suitable samples, detailed microstructural analysis is not possible. Ultramicrotomy, or diamond knife sectioning, is a well-known mechanical specimen preparation technique which has been gaining attention in the materials science area. Malis and co-workers and Glanvill have demonstrated the usefulness and applicability of this technique to the study of a wide variety of materials including Al alloys, composites, and semiconductors. Ultramicrotomed specimens have uniform thickness with relatively large electron-transparent areas which are suitable for AEM anaysis.Interface Analysis in Type 316 Austenitic Stainless Steel: STEM-EDS microanalysis of grain boundaries in austenitic stainless steels provides important information concerning the development of Cr-depleted zones which accompany M23C6 precipitation, and documentation of radiation induced segregation (RIS). Conventional methods of TEM sample preparation are suitable for the evaluation of thermally induced segregation, but neutron irradiated samples present a variety of problems in both the preparation and in the AEM analysis, in addition to the handling hazard.

Free-Space Electromagnetic Characterization of Materials for Microwave and Radar Applications

PIERS Online ◽  
2005 ◽  
Vol 1 (2) ◽  
pp. 128-132 ◽  
Author(s):  
Habiba Hafdallah Ouslimani ◽  
Redha Abdeddaim ◽  
Alain Priou
Keyword(s):  
Free Space ◽  
Radar Applications ◽  
Characterization Of Materials

scholarly journals Vocabulary of radioanalytical methods (IUPAC Recommendations 2020)

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Zhifang Chai ◽  
Amares Chatt ◽  
Peter Bode ◽  
Jan Kučera ◽  
Robert Greenberg ◽  
...  
Keyword(s):  
Nuclear Reactions ◽  
Hyperfine Interactions ◽  
Chemical Species ◽  
Radiation Detectors ◽  
Nuclear Analysis ◽  
Characterization Of Materials ◽  
Nuclear Effects ◽  
Nuclear Processes ◽  
Radioanalytical Methods

AbstractThese recommendations are a vocabulary of basic radioanalytical terms which are relevant to radioanalysis, nuclear analysis and related techniques. Radioanalytical methods consider all nuclear-related techniques for the characterization of materials where ‘characterization’ refers to compositional (in terms of the identity and quantity of specified elements, nuclides, and their chemical species) and structural (in terms of location, dislocation, etc. of specified elements, nuclides, and their species) analyses, involving nuclear processes (nuclear reactions, nuclear radiations, etc.), nuclear techniques (reactors, accelerators, radiation detectors, etc.), and nuclear effects (hyperfine interactions, etc.). In the present compilation, basic radioanalytical terms are included which are relevant to radioanalysis, nuclear analysis and related techniques.

scholarly journals Analysis and characterization of materials used in heritage theatrical figurines

2020 ◽  
Vol 8 (1) ◽  
Author(s):  
Yuxuan Gong ◽  
Chengquan Qiao ◽  
Bochao Zhong ◽  
Jiarang Zhong ◽  
Decai Gong
Keyword(s):  
Materials Used ◽  
Characterization Of Materials
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