scholarly journals Silk Textiles from the Topkapi Palace Museum, Istanbul: An Analytical Study

2021 ◽  
pp. 67-75
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Elemental Analysis ◽  
High Performance ◽  
Analytical Study ◽  
Color Measurement ◽  
X Ray ◽  
Scanning Electron

Eight historical textile objects belonging to the 16th-20th centuries in the collection of the Topkapi Palace Museum in Istanbul were analyzed with the purpose of reaching improved conservation and restoration methods. The historical textiles underwent dyestuff analysis by High Performance Liquid Chromatography, morphological and elemental analysis by Scanning Electron Microscope with energy Dispersive X-ray Spectroscopy, CIEL*a*b color measurement as well as technical analysis by optical microscopy.

PHAX-SCAN: Functional integration of a Scanning Electron Microscope and an energy-dispersive x-ray analyser

1989 ◽  
Vol 47 ◽  
pp. 56-57
Author(s):  
Marc H. Peeters ◽  
Max T. Otten
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
High Speed ◽  
High Performance ◽  
Functional Integration ◽  
Energy Dispersive ◽  
X Rays ◽  
X Ray ◽  
High Speed Analysis ◽  
Scanning Electron

Over the past decades, the combination of energy-dispersive analysis of X-rays and scanning electron microscopy has proved to be a powerful tool for fast and reliable elemental characterization of a large variety of specimens. The technique has evolved rapidly from a purely qualitative characterization method to a reliable quantitative way of analysis. In the last 5 years, an increasing need for automation is observed, whereby energy-dispersive analysers control the beam and stage movement of the scanning electron microscope in order to collect digital X-ray images and perform unattended point analysis over multiple locations.The Philips High-speed Analysis of X-rays system (PHAX-Scan) makes use of the high performance dual-processor structure of the EDAX PV9900 analyser and the databus structure of the Philips series 500 scanning electron microscope to provide a highly automated, user-friendly and extremely fast microanalysis system. The software that runs on the hardware described above was specifically designed to provide the ultimate attainable speed on the system.

Research on the Insulation Materials with Sugar Filter Mud as Pore-Forming Agent and Jilin Clay as Aggregate

2013 ◽  
Vol 361-363 ◽  
pp. 682-685
Author(s):  
Chao Qian ◽  
Wen Yuan Gao ◽  
Chun Yuan Luo ◽  
Li Dong Tuo ◽  
Hai Yuan Li ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Electron Microscope ◽  
Flexural Strength ◽  
Scanning Electron Microscope ◽  
Elemental Analysis ◽  
X Ray Diffraction ◽  
X Ray ◽  
Insulation Materials ◽  
Filter Mud ◽  
Scanning Electron

Insulation materials with flexural strength 5.238 MPa and porosity 39.24% obtained at 1050 °C for 0.5 h show that its bulk density of the materials decreased down to 1.252 g/cm3using clay as aggregate. Due to change the amount of sugar filter mud, the porosity arises from 37.07% to 39.24% and the thermal conductivity decreases from 0.086 to 0.052 W·m-1·K-1. The clay and wastes were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and chemical elemental analysis. The main crystalline phases of sample observed by XRD are quartz, mullite and anorthite. The insulation materials were manufactured from clay and the optimal proportion of wastes.

A Combined Scanning Electron Microscope/Electron Microprobe Analyzer

1968 ◽  
Vol 26 ◽  
pp. 368-369
Author(s):  
V.G. Macres ◽  
O. Preston ◽  
N.C. Yew ◽  
R. Buchanan
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Electron Microprobe ◽  
High Performance ◽  
Electron Gun ◽  
Objective Lens ◽  
Condenser Lens ◽  
X Ray ◽  
Low X ◽  
Scanning Electron

The instrument described here is the Materials Analysis Company Model 400S combined scanning electron microscope/electron micro-probe analyzer. It was designed specifically to incorporate the most advanced features of a high performance electron microprobe analyzer with those of a medium resolution (1000A°) scanning electron microscope. The high effective x-ray take-off angle of the instrument (38.5°) offers low x-ray absorption, and thus allows the analysis of fairly rough specimens. The large depth of focus of the scanned electron images further enhances the capability of examining rough specimens.The electron-optical column comprises a triode electron gun, double condenser lens and objective lens. The electron gun uses a conventional hairpin filament, autobiased Wehnelt cylinder and anode. An externally controlled filament/Wehnelt cylinder height adjustment is provided for optimizing gun performance at all operating potentials. The double condenser lens is unitized and has two lens regions and a common energizing coil.

Direct growth of Mn0.6Ni0.4CO3 nanosheet assembles on Ni foam for high-performance supercapacitor electrodes

2022 ◽  
Author(s):  
RongMin Cheng ◽  
Conghong Zhan ◽  
Juanjuan Gao
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Powder Diffraction ◽  
High Performance ◽  
Ni Foam ◽  
X Ray ◽  
Transmission Electron ◽  
Direct Growth ◽  
Calcination Treatment ◽  
Scanning Electron

Using Ni foam as a template, Mn0.6Ni0.4CO3 nanosheet assembles were synthesized by hydrothermal method and calcination treatment. X-ray powder diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), Inductively...

scholarly journals Computer-Aided Facial Reconstruction of “Mary-Magdalene” Relics Following Hair and Skull Analyses

2019 ◽  
Vol 12 ◽  
pp. 117955061882193 ◽  
Author(s):  
Philippe Charlier ◽  
Philippe Froesch ◽  
Nadia Benmoussa ◽  
Stéphane Morin ◽  
Anaïs Augias ◽  
...  
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Elemental Analysis ◽  
Facial Reconstruction ◽  
High Magnification ◽  
X Ray ◽  
Mary Magdalene ◽  
Computer Aided ◽  
First Time ◽  
Scanning Electron

The supposed relics of “Mary-Magdalene” are preserved in Provence (France) in an ancient tradition. They consist of a dry skull and a lock of hair. For the first time, they were officially subjected to an extensive medico-surgical examination by photogrammetry, high-magnification binocular lenses, scanning electron microscope, and energy-dispersive X-ray elemental analysis, to propose a full computer-aided facial reconstruction. The preliminary results are presented here.

Energy Dispersive X-Ray Analysis of Picoliter Samples of Physiological Fluids

1975 ◽  
Vol 33 ◽  
pp. 248-249
Author(s):  
Paul M. Quinton
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Elemental Analysis ◽  
Freeze Drying ◽  
Biological Fluids ◽  
Energy Dispersive ◽  
Biological Parameters ◽  
X Ray ◽  
Scanning Electron

Investigations of biological parameters at increasingly refined levels have sustained interest in methods for analyzing diminishingly small quantities of biological fluids. This report presents a rapid, straight forward procedure for elemental analysis of volumes on the order of 50 picoliters or less using the scanning electron microscope coupled with energy dispersive X-ray analysis. This technique has advantages over previously reported methods in that the preparation is faster, no freeze drying is necessary, and all elements heavier than flouride can be analized simultaneously.

Influence of Nano-SiO2 on the Strength of High Performance Concrete

2011 ◽  
Vol 686 ◽  
pp. 432-437 ◽  
Author(s):  
Bao Min Wang
Keyword(s):  
Compressive Strength ◽  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
High Performance ◽  
High Performance Concrete ◽  
Mixing Ratio ◽  
X Ray Diffraction ◽  
X Ray ◽  
Injection Experiment ◽  
Scanning Electron

The influence of Nano-SiO2 (NS) on the strength of high-performance concrete (W/B=0.24, W/B=0.29, W/B=0.34) has been studied in this paper. The results show that compressive strengths of concrete in both the early and later stage can be improved by adding Nano-SiO2 content. And the influence on the early compressive strength is greater than that on the later compressive strength. According to the results, 3%-5% Nano-SiO2can be used as the proper mixing ratio. X-ray diffraction, SEM (scanning electron microscope) and mercury injection experiment were used to analyze the action principle of Nano-SiO2 microscopically, the microscopic characteristics of concrete can be significantly improved through interfacial and filling effect effects so that the performance of concrete can be accordingly improved.

X-ray micro tomography in the scanning electron microscope

1978 ◽  
Vol 36 (1) ◽  
pp. 106-107 ◽  
Author(s):  
W. Brünger
Keyword(s):  
Electron Beam ◽  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Target Surface ◽  
The Body ◽  
X Rays ◽  
Cross Sectional ◽  
X Ray ◽  
Micro Tomography ◽  
Scanning Electron

Reconstructive tomography is a new technique in diagnostic radiology for imaging cross-sectional planes of the human body /1/. A collimated beam of X-rays is scanned through a thin slice of the body and the transmitted intensity is recorded by a detector giving a linear shadow graph or projection (see fig. 1). Many of these projections at different angles are used to reconstruct the body-layer, usually with the aid of a computer. The picture element size of present tomographic scanners is approximately 1.1 mm2.Micro tomography can be realized using the very fine X-ray source generated by the focused electron beam of a scanning electron microscope (see fig. 2). The translation of the X-ray source is done by a line scan of the electron beam on a polished target surface /2/. Projections at different angles are produced by rotating the object.During the registration of a single scan the electron beam is deflected in one direction only, while both deflections are operating in the display tube.

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