Mirror areas

Comparison of concentrations found in feathers and internal tissues of magpie individuals has been possible because a part of the birds captured in Poland (mostly males) was sacrificed for studies of internal tissues as kidneys, livers, femur bones, breast muscles, and brains. The results have shown that transposition of results of feather analyses to internal tissues is possible, at least with respect to the most environmentally harmful elements such as lead, cadmium or thallium. The proportionalities of pollution of the studied areas mirrored by tail feather samples were similar to the proportionalities expressed by some internal tissues. Complete data regarding all... 

In addition, the mirrors are adjustable, so that unimportant areas can be ignored. Light re-emmited from the surfaee is detected, and the detector signal is transmitted to a computer programmed with acceptable deviation levels for comparison with a reference component. Tolerance levels can vary for different areas of the same test piece they may, for example, be higher on a ground section than on adjacent unmachined areas. 

Brightness. This is defined as the power emitted per unit area of the output mirror per unit solid angle and is extremely high compared with that of a conventional source. The reason for this is that, although the power may be only modest, as in, for example, a 0.5 mW helium-neon gas laser, the solid angle over which it is distributed is very small. 

Early injection lasers were small rectangular parallelepipeds made by cutting a wafer of GaAs. Feedback was provided by mirrors polished on two edges or by cleaving. The wafer had ap—n junction incorporated into it and broad area or stripe contacts were provided. Laser stmctures have since evolved to satisfy a wide range of appHcation specific requirements. 

Recent applications of e-beam and HF-plasma SNMS have been published in the following areas aerosol particles [3.77], X-ray mirrors [3.78, 3.79], ceramics and hard coatings [3.80-3.84], glasses [3.85], interface reactions [3.86], ion implantations [3.87], molecular beam epitaxy (MBE) layers [3.88], multilayer systems [3.89], ohmic contacts [3.90], organic additives [3.91], perovskite-type and superconducting layers [3.92], steel [3.93, 3.94], surface deposition [3.95], sub-surface diffusion [3.96], sensors [3.97-3.99], soil [3.100], and thermal barrier coatings [3.101]. 

A recent reference [1] lists twenty suppliers of structural acrylic adhesives. Many other companies have been involved in this area, and it is often felt that acrylic adhesives have unrealized technical potential [2]. Acrylic adhesives are not commonly found in the consumer market, but fill an important niche there in the bonding of rear view mirrors to windshields in automobiles. 

In special applications people have built telescopes with very sparse arrays of mirrors in order to sample the resolution space with minimum number of mirrors. Systems like this may give greater angular resolution (longer baseline) but have less sensitivity due to the smaller collecting area. 

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