Scanning electron microscope photos

Figure 6. Scanning electron microscope photos of the troublesome clay minerals kaolinite, chlorite, smectite, and illite. (Reproduced with permission, Halliburton Services.) Continued on next page.

After cutting a specimen of AlN/W FGM in the direction of the gradient, we polished the surface to a mirror finish and observed the microstructure by Scanning Electron Microscope. Photo 1 shows the results of backscattered electron image of the microstructure. The black distributed areas are metallic tungsten particles. The dispersed particles are also distributed inside the aluminum nitride crystal grain and grain boundary. 

Fig. 15. Scanning electron microscope photo of the magnetic fraction of core MTR.l from a depth of 36-38 cm. Note the abundance of spheres. The scale bar is 50 /am long.

I would like also to thank my former co-worker Barbara Tiybalska for the beautiful scanning electron microscope photos that she took me when she worked with me in the AGH University of Science and Technology. 

Scanning electron microscopic photos of the worn surfaces of (a) unfilled epoxy and its composites filled with (b) untreated nano-A Os, (c) AI2O3-KH55O, (d) AljOa-g-PAAM, (e) AljOg-g-PS, and (f) A Oa-g-PEA at a volume fraction of nano-AlaOs of 0.24 vol.%7 The composites codes are the same as those explained in Fig. 20.10. (Reprinted from Wear, vol. 256, G. Shi eta .. Sliding wear behavior of epoxy containing nano-AlaOs particles with different pretreatments, p. 1072,2004, with permission from Elsevier.)... 

Fig. 11.1. Fungal microcolonies and associated extracellular pol3uneric substances (EPS). (A) On the surface of marble in Greece (Athens). The EPS network around black fungal colonies is stained red (on the photo -light grey) by periodic acid - Schiff s reagent stain (PAS). (B) Cryo-scanning electron microscope image of a fungal microcolony with its inherent mucilage. This colony of strain A49 was cultured in subaerial conditions with some additional supply of nutrients from the substrate.

XRD, X-ray diffraction XRF, X-ray fluorescence AAS, atomic absorption spectrometry ICP-AES, inductively coupled plasma-atomic emission spectrometry ICP-MS, Inductively coupled plasma/mass spectroscopy IC, ion chromatography EPMA, electron probe microanalysis SEM, scanning electron microscope ESEM, environmental scanning electron microscope HRTEM, high-resolution transmission electron microscopy LAMMA, laser microprobe mass analysis XPS, X-ray photo-electron spectroscopy RLMP, Raman laser microprobe analysis SHRIMP, sensitive high resolution ion microprobe. PIXE, proton-induced X-ray emission FTIR, Fourier transform infrared. 

The earliest, and still the most widely used, packings for gas chromatography were prepared from naturally occurring diatomaceous earth, which consists of the skeletons of thousands of species of single-celled plants that inhabited ancient lakes and seas. (Figure 31-13 is an enlarged photo of a diatom obtained with a scanning electron microscope.) These support materials are often treated chemi-... 

Fig. 5.3 Scanning electron microscope (SEM) photo of parenchyma tissue (thin-waUed cells with large empty spaces) in modem Sambucus (Elderberry) stem...

Figure 5. Scanning electron microscopic photographs of 2 circumstellar graphite grains (top) and a presolar SiC grain (bottom) isolated from meteorites. Photos courtesy of Sachiko Amari.

The core photos and cuttings photos illustrated that there were upgrowth of big pores and big holes, and a large number of micro cracks and micro pores were discovered under the scanning electron microscope. Futher studies indicate that the pores, cracks filled with authigenic kaolinite, quartz, where some clay mineral particles montmorillonitized on surface and they were derived from some partially dissoluted particles. Microscopic pore and crack structure types from erosion were visible. 

Photo 5. Scanning electron microscopic picture of the endothelial cells covering atheroma. - In Cholesterol-fed rabbits -... 

Photo 6. Scanning electron microscopic demonstration of endothelial cell-contraction (1) Angiotensin II side (2) Saline side... 

A Some calcium salts, such as calcium fluoride and calcium hydrogen phosphate, have beneficial uses, but another calcium salt, calcium oxalate (CaC204), can be harmful. The photo is a scanning electron microscope image of calcium oxalate crystals, a common type of kidney stone that can form in the human kidney. 

In general, optically, electrically or chemically triggered switches would seem to be preferable to mechanically activated ones, as are photo-, electro- and chemo devices with respect to mechano devices and electronic or photonic computing with respect to mechanical computing. The ultimate in (nano)mechanical manipulation of a molecular device is represented by the realization of a bistable switch based on the motion of a single atom by means of the scanning tunnelling microscope [8.295] (see also Section 9.9). 

The scanning tunneling microscope also provides new technologies for chemists and physicists. The red areas in the photo below show the valence electrons of metal atoms that are free to move about in a metallic crystal. On the surface of the crystal, they can move in only two dimensions and behave like waves. Two imperfections on the surface of the crystal cause the electrons to produce concentric wave patterns. 

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