scholarly journals Determination of Ultrastructural Properties of Human Carotid Atherosclerotic Plaques by Scanning Acoustic Microscopy, Micro-Computer Tomography, Scanning Electron Microscopy and Energy Dispersive X-Ray Spectroscopy

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Bukem Bilen ◽  
Leyla Turker Sener ◽  
Isil Albeniz ◽  
Meltem Sezen ◽  
Mehmet Burcin Unlu ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Acoustic Microscopy ◽  
Atherosclerotic Plaques ◽  
Scanning Acoustic Microscopy ◽  
X Ray ◽  
Computer Tomography Scanning ◽  
Tomography Scanning ◽  
Human Carotid ◽  
Scanning Electron

Evaluation of computer-controlled SEM in the study of metal-contaminated soils

2003 ◽  
Vol 67 (2) ◽  
pp. 219-231 ◽  
Author(s):  
H. W. Langmi ◽  
J. Watt
Keyword(s):  
Electron Microscopy ◽  
Heavy Metals ◽  
Contaminated Soils ◽  
X Ray ◽  
Computer Controlled ◽  
Weathering Crusts ◽  
Individual Particles ◽  
Element Mapping ◽  
Scanning Electron

Computer-controlled scanning electron microscopy (CCSEM) has been assessed for the determination of form and size distribution of heavy metals in urban contaminated soils. Metal distributions within individual particles were determined using X-ray element mapping. The sites selected for study were (1) around a landfill site, previously a colliery in Wolverhampton, UK and (2) a private garden adjacent to a railway in Nottingham, UK. Backscattered thresholding techniques were used to isolate the Pb-containing categories. The classification results for both Wolverhampton and Nottingham soils were generally similar but more Pb-containing classes were observed for the Nottingham samples when a comparison was made between results of the same size fractions. However, difficulties with the technique arose when particles showing chemically similar weathering crusts were assigned to the same class, despite having different internal compositions. The CCSEM data therefore need to be interpreted with caution and their application limited to situations in which particle internal complexity is not an issue.

scholarly journals The use of scanning electron microscopy to the study of the painting from the Church in Radcze

2013 ◽  
Vol 12 (4) ◽  
pp. 095-105
Author(s):  
Beata Klimek
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Electron Microscope ◽  
Historic Buildings ◽  
X Ray ◽  
Composition And Structure ◽  
The Church ◽  
Diagnosis Technique ◽  
Scanning Electron

One of the main tasks in the study of historic buildings is the need to identify the original materials and extensions, which often have historic character. The next task concerns the determination of the composition and structure of the historical, diagnosis technique to develop original paint. The article presents the preliminary results of paintings. Methods were used with the scanning electron microscope was equipped with an energy dispersive X-ray spectrometer (SEM-EDS).

Study of an Energetic-oxidant Co-crystal: Preparation, Characterisation, and Crystallisation Mechanism

2017 ◽  
Vol 67 (5) ◽  
pp. 510 ◽  
Author(s):  
Han Gao ◽  
Wei Jiang ◽  
Jie Liu ◽  
Gazi Hao ◽  
Lei Xiao ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Differential Scanning Calorimetry ◽  
Diffraction Spectrum ◽  
Solvent Evaporation Method ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
X Ray ◽  
Scanning Electron

<p>An energetic co-crystal consisting of the most promising military explosive 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (CL-20) and the most well-known oxidant applied in propellants ammonium perchlorate has been prepared with a simple solvent evaporation method. Scanning electron microscopy revealed that the morphology of co-crystal differs greatly from each component. The X-ray diffraction spectrum, FTIR, Raman spectra, and differential scanning calorimetry characterisation further prove the formation of the co-crystal. The result of determination of hygroscopic rate indicated the hygroscopicity was effectively reduced. At last, the crystallisation mechanism has been discussed.</p>

scholarly journals METHODS OF STUDYING THE STRUCTURE AND PROPERTIES OF MOUNTAIN BREEDS ON SAMPLES (QUICK REVIEW)

2018 ◽  
pp. 10-20
Author(s):  
A. A. Karabutov ◽  
E. B. Cherepetskaya ◽  
A. N. Kravcov ◽  
M. Arrigoni
Keyword(s):  
Internal Structure ◽  
Acoustic Microscopy ◽  
Laser Ultrasound ◽  
Structure And Properties ◽  
X Ray ◽  
Local Porosity ◽  
Non Destructive ◽  
Tomography Scanning ◽  
Destructive Methods ◽  
Scanning Electron

Some non-destructive methods for controlling the internal structure of rocks are described and examples of their use are given. Examples of the use of X-ray and neural tomography, scanning electron and acoustic microscopy are also given. It is shown that the method of laser-ultrasound struktroskopii is promising. Two examples of the use of the latter are given: measuring the local porosity of samples of geomaterials and monitoring changes in the internal structure as a result of electromagnetic exposure.

Preparation of Functionalized Hollow ZnS Microspheres and their Analytical Application

2012 ◽  
Vol 151 ◽  
pp. 281-285
Author(s):  
Shi Jie Chen ◽  
Ying Jie Li ◽  
Ren Jiang Lü ◽  
Peng Wang
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Ph Value ◽  
Fluorescence Probes ◽  
Optimum Conditions ◽  
X Ray ◽  
Transmission Electron ◽  
Scanning Electron

Hollow ZnS microsphere were prepared by hydrothermal method and modified with L-Cysteine. The functionalized hollow ZnS microspheres were characterized using transmission electron microscopy(TEM), field-emission scanning electron microscopy(FESEM), X-ray diffractometer (XRD) and photoluminescence spectroscopy. They were used as fluorescence probes in the determination of ciprofloxacin. The pH value of the system was selected at pH 8.5 with excitation and emission wavelength at 270 nm and 423 nm. Under the optimum conditions, the fluorescence of hollow functionalized ZnS microspheres was enhanced by ciprofloxacin. The responses are linearly proportional to the concentrations of ciprofloxacin, the linear range of calibration curve is 0.20 µg•L-1–870 µg•L-1 for ciprofloxacin, the detection limit is 0.06 µg•L-1.

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