Digital photographs

Bimetallic nanoparticles, either as alloys or as core-shell structures, exhibit unique electronic, optical and catalytic properties compared to pure metallic nanopartides [24]. Cu-Ag alloy nanoparticles were obtained through the simultaneous reduction of copper and silver ions again in aqueous starch matrix. The optical properties of these alloy nanopartides vary with their composition, which is seen from the digital photographs in Fig. 8. The formation of alloy was confirmed by single SP maxima which varied depending on the composition of the alloy. 

Fig. 8. Digital photograph of starch capped metallic and bimetallic nanopartides in aqueous medium. A Cu B-D Cu-Ag E Ag.

Fig. 13. Digital photograph showing various stages of the hydrothermal reduction of reaction of CU2O in a sealed tube.

Evaluation of cosmetic benefits with the patient. Digital photographs are the best, permit easy comparison and are inexpensive. It is helpful to show the patient the necessity... 

Scientific documentation. Comparable high quality digital photographs... 

Figure 9. Left digital photograph ofa selected area ofsample WJJ122, followed by elemented contour maps of iron, copper, and manganese concentrations on the surface of the sherd. Darker areas on the contour maps indicate higher elemental concentrations for that element. The analyzed area is 10 x 18 mm. Sampling was conducted at 1 mm intervals.

Figure 20.3 Digital photographs of sol-gel-derived materials monoliths, powders, and films. (See color insert.)...

Photographs always lose some detail in reproduction, so be sure to take the photograph in good focus and, for digital photographs, with sufficient resolution. See Figure 15-4. 

A single-blinded histochemical infarct size analysis is determined by computer planimetry (Adobe Photoshop version 4.0) of the digital photographs of NBT-stained heart slices. 

Fig. 3. (a) Digital photographs of mid-slices of nitro blue tetrazolium stained hearts treated with CSIL at 5 (a), 10 (b), and 20 (c) min of ischemia orIgG-L at 5 (d), 10 (e), and 20 (f) min of ischemia, (b) Mean infarct sizes are expressed as the percentage of right and left ventricles of hearts treated with CSIL, IgG-L, phosphate buffered saline (PBS), or sham instrumentation... 

Digitally photograph all slices on both sides to document the site of the occlusion-induced area at risk by the absence of blue staining. 

Patients having a febrile prodrome and either one other major criterion or at least four minor criteria are at moderate risk for smallpox. For patients at moderate risk, physicians should alert infection control and immediately institute contact precautions and respiratory isolation. If possible, they should obtain dermatology and/or infectious disease consultation and obtain digital photographs of the lesions. Given a moderate risk situation, the appropriate clinical diagnosis is essential, and physicians must rule out varicella or complication of vaccinia (smallpox vaccine). Therefore, for moderate risk patients, the history is essential, specifically the history of clinical varicella infection, history of vaccination for varicella and history of possible exposure to vaccinia (smallpox) vaccine. 

The second criterion of quahty is the depth of color of a digital photograph. This depends on the number of colors encoded for 256 colors, eight digital characters (bits) per pixel are necessary. A color intensity of 16 bits enables 65 536 colors to be represented, which is known as high color . An almost photographically reahstic representation ( true color ) is only possible with 16.7 miUion colors, and this requires 24 bits per pixel [121]. 

Digital photograph of the flexible sensor chip. From McAlpine etal. (2007). 

Fig. 9 Top row. TEM images of a series of nanocomposite particles synthesized by emulsion copolymerization of styrene and BA of varying mass ratios in the presence of a cationic azo initiator and a commercial ultrafine glycerol-modified silica sol. Bottom row TEM of an ultrami-crotomed section of nanocomposite particles obtained for a 50 50 styrenetBA mass ratio bottom left). Digital photographs of nanocomposite films deliberately contaminated by increasing amounts of silica, showing significant embrittlement and illustrating the detrimental effect of excess silica on film properties bottom right). Reproduced from [63] with permission of American Chemictil Society...

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