A False Report of Product Tampering Involving a Rodent and Soft Drink Can: Light Microscopy, Image Analysis and Scanning Electron Microscopy/Energy Dispersive X-Ray Analysis

1997 ◽  
Vol 42 (6) ◽  
pp. 14280J
Author(s):  
S. Frank Platek ◽  
Nicola Ranieri ◽  
Karen A. Wolnik
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Image Analysis ◽  
Light Microscopy ◽  
Soft Drink ◽  
X Ray ◽  
Microscopy Image ◽  
False Report ◽  
Microscopy Image Analysis ◽  
Scanning Electron

Scanning Electron Microscopy image analysis of fiber glass insulation

1992 ◽  
Vol 50 (2) ◽  
pp. 994-995
Author(s):  
H. Talbot ◽  
D. Jeulin ◽  
L.W. Hobbs
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Image Analysis ◽  
Glass Fibers ◽  
Insulation Material ◽  
Glass Insulation ◽  
Microscopy Image ◽  
Microscopy Image Analysis ◽  
Environmental Sem ◽  
Scanning Electron

Glass wool, made of chemically bound glass fibers which trap stagnant air, has been used in a variety of applications as phonic and thermic insulation material. Mechanical and insulating qualities of the material depend heavily on the characteristics of the fibers themselves. Aside from the composition of the glass, the length and diameter distributions of the fibers within the material can be related to these characteristics. A fast and reliable means for obtaining these size distributions is therefore a crucial issue for quality control.Scanning electron microscopy (SEM) imaging was used to access sub-micron dimensions of the fibers; and image analysis, as opposed to manual procedures, was used for obtaining measurements.Samples of clean raw fibers (free of binder) were dispersed with ultrasound into a pH 9 aqueous solution and later deposited on a track-etched polycarbonate filter with 0.2 μm pore size. The filter was then dried, coated, and observed in BSE mode in a standard SEM, or left uncoated and observed in an environmental SEM (ESEM).

Phase Investigations of Copper Based CuZn38Al2MnFe Alloy

2006 ◽  
Vol 113 ◽  
pp. 537-540
Author(s):  
Marek Szkodo ◽  
M. Głowacka ◽  
M. Smajdor ◽  
Henryk Bugłacki
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Image Analysis ◽  
Chemical Composition ◽  
Light Microscopy ◽  
Volume Fraction ◽  
Energy Dispersive ◽  
Phase Identification ◽  
X Ray ◽  
Scanning Electron

In the work phase investigations of special brass CuZn38Al2MnFe alloy are presented. The microstructure, chemical composition and phase identification of the investigated alloy were examined using scanning electron microscopy (Philips 30/ESEM), light microscopy Leica coupled with PC computer with installed MultiScan program, energy dispersive X-ray spectroscopy (EDX) and X-ray diffractometry (XRD), respectively. The investigation of volume fraction existing phases was carried out using image analysis. It was found in the test bend that presence of Fe4Mn77Si19 phase in microstructure caused an increase of brittleness of the tested alloy.

scholarly journals Defects of copper patina / Vady mìdìných patin

2015 ◽  
Vol 59 (3) ◽  
pp. 87-90 ◽  
Author(s):  
J. Stoulil ◽  
P. Šedá ◽  
M. Anisová ◽  
Z. Fencl ◽  
P. Novák ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Image Analysis ◽  
Compact Surface ◽  
Historical Buildings ◽  
X Ray Diffraction ◽  
X Ray ◽  
Destructive Analysis ◽  
High Degree ◽  
Scanning Electron

Abstract The paper is focused on analyses of dark copper patina defects that were formed on one sheet under the same conditions. Roofs of ten historical buildings were studied by image analysis and samples of two roofs were subjected to more detailed destructive analysis. These samples were studied by means of scanning electron microscopy with energy dispersive X-ray spectroscopy, X-ray diffraction and infrared spectroscopy. Both types of patina are composed of brochantite. Green patinas consisted of a pure brochantite and they had a fl at and compact surface. Conversely, black patina contained a high degree of impurities (ammonia cations, nitrates, silicates) and the surface was rough. The proportion of dark patina was higher in south and east facing surfaces, where washing by rainfall is more difficult.

Pore Structure and Microstructure of Foam Concrete

2010 ◽  
Vol 177 ◽  
pp. 530-532 ◽  
Author(s):  
Xin Gang Yu ◽  
Shi Song Luo ◽  
Yan Na Gao ◽  
Hong Fei Wang ◽  
Yue Xiang Li ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Image Analysis ◽  
Light Microscopy ◽  
Pore Structure ◽  
Digital Image ◽  
Digital Image Analysis ◽  
Foam Concrete ◽  
Structure And Microstructure ◽  
Scanning Electron

The pore structure and microstructure of the foam concrete was analyzed by scanning electron microscopy and light microscopy combined with digital image analysis. The results show that: (1) even-distributed fine and close pores resulting in high strength and low permeability; (2) uneven-distributed large size pores and open pores lead to low strength and high permeability; (3) light microscopy combined with digital image analysis is a cheap and convenient tool fitting for the pore structure analysis of the foam concrete; (4) scanning electron microscopy is very appropriate for the pore structure and microstructure analysis of the foam concrete.

Detection of Intermetallic Compounds in a Mg-5Al-3Ca-0.7Sr-0.2Mn Magnesium Alloy

2013 ◽  
Vol 197 ◽  
pp. 137-142 ◽  
Author(s):  
Tomasz Rzychoń ◽  
Janusz Szala ◽  
Tomasz Kukiełka
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Magnesium Alloy ◽  
Light Microscopy ◽  
Diffraction Analysis ◽  
Intermetallic Compounds ◽  
Intermetallic Phases ◽  
X Ray Diffraction ◽  
X Ray ◽  
Scanning Electron

In this paper the results of microstructural investigations and methodology of detection of intermetallic compounds were reported. The microstructural investigations included the light microscopy, scanning electron microscopy, chemical microanalysis and X-ray diffraction analysis. It was found that the microstructure of Mg-5Al-3Ca-0.7Sr-0.2Mn alloy consists of α-Mg, (Mg,Al)2Ca, Al3Mg13(Sr,Ca), Mg2Ca and Al2Ca intermetallic phases. The correct detection of these phases requires the high magnifications and a large number of measurements fields.

scholarly journals Intraocular Lens Opacification following Intracameral Injection of Recombinant Tissue Plasminogen Activator to Treat Inflammatory Membranes after Cataract Surgery

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Simon S. M. Fung ◽  
Evripidis Sykakis ◽  
Niaz M. Islam ◽  
Hadi J. Zambarakji ◽  
Ramin Khoramnia ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Light Microscopy ◽  
Cataract Surgery ◽  
Anterior Chamber ◽  
Plasminogen Activator ◽  
Recombinant Tissue Plasminogen Activator ◽  
X Ray ◽  
Tissue Plasminogen ◽  
Scanning Electron

Purpose. To report 7 cases of intraocular lens (IOL) opacification following treatment of postoperative anterior chamber fibrin with recombinant tissue plasminogen activator (rtPA) after cataract surgery. Methods. Retrospective case series of 7 eyes in 7 patients who developed IOL opacification after receiving rtPA for anterior chamber inflammatory membrane formation resulting from phacoemulsification cataract surgery. Three explanted IOLs were investigated with light microscopy, histochemical analysis, scanning electron microscopy, and X-ray spectrometry. Results. All patients underwent uncomplicated cataract surgery and posterior chamber hydrophilic IOL implantation. Anterior chamber inflammatory membranes developed between 1 and 4 weeks of surgery and were treated with intracameral rtPA. IOL opacification was noted between 4 weeks and 6 years after rtPA treatment with reduced visual acuity, and IOL exchange was carried out in 3 patients. Light microscopy evaluation revealed diffuse fine granular deposits on the anterior surface/subsurface of IOL optic that stained positive for calcium salts. Scanning electron microscopy (SEM) and energy-dispersive X-ray spectrometry (EDS) confirmed the presence of calcium and phosphate on the IOL. Conclusions. Intracameral rtPA, though rapidly effective in the treatment of anterior chamber inflammatory membranes following cataract surgery, may be associated with IOL opacification.

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