Field practice

The air leakage rates indicated are guidelines only. In actual field practice, the air... 

Training course (documented) in Good Laboratory/Field Practices. 

Editor This discussion brings to mind the question of how the animals sniff in the molecules. You have addressed this question from the point of view of field practice more than physiology, which may help us understand how better to use electronic systems. You indicated that recent data from Norway18 indicates that the dogs more often make correct identification of explosives when the humidity is low, but that the temperature seems to have no effect. How does this compare with the greater explosive vapor flux rates measured after rain, as discussed in Chapter 4 and Chapter 7 ... 

Several types of corrosion inhibitors have been investigated in the last 20 years [53-55] these include calcium and sodium nitrites, sodium benzoate, sodium/potassium chromate, sodium salts of silicates and phosphates, stannous chloride, hydrazine hydrate, sodium fluorophosphate, permanganate, aniline and related compounds, alkalis, azides, ferrocyanide, EDTA and many chelating compounds. However, in terms of field practice and research data, nitrite-based compounds occupy a dominant position. 

With a view toward correcting these errors and making laboratory practice conform to field practice, so far as possible, J.E. Craw-shaw and J.W. Jones devised and developed the Crawshaw-Jones Apparatus at the Explosive Experiment Station, Bruce ton, Pennsylvania... 

Sulser, T.B., Duryea, M.L., Frolich, L.M. and Guevara-Cuaspud, E. 2001. A field practical approach for assessing biophysical sustainability of alternative agricultural systems. Agricultural Systems 68(2) 113-135. 

A typical Brinell hardness tester, often called a Brinell hydraulic press, is shown in Fig. 4.3.8a. The indentation parameters important to hardness calculation are measured with a gauge built into the tester (h) and Le Chatelier glass plate, evolvent magnifier or microscope (d). In field practice or operations, portable control, measuring equipment is essential. The A. J. Buehler company supplies a miniaturized Televeld unit comprised of a base plate, Brinell microscope, hardness computing device, calculation and record sheets and replaceable measuring balls, 10 mm diameter (Fig. 4.3.8b). 

In a similar vein, technical discussions in textbooks and papers, up to only a few years ago, tended to cover problems such as corrosion, carbonate scaling, and microbiological control as individual topics that were somehow unrelated to each other. Such discussions were often quite theoretical and had little in common with field practicalities and realities. 

The adoption of best management practices can reduce the storm-related runoff of atrazine, simazine, and other moderately soluble herbicides from fields into bodies of surface water. Several papers (Fawcett et al., 1994 Hirsch et al, 1997 USDA-NRCS, 2000 Krutz et al., 2005) note how these in-field practices can be beneficial to water quality. 

M.A. Field, Practical Intoduction to the Simulation of Molecular Systems (Cambridge University Press, Cambridge, 1999)... 

Obviously, one can not precisely quantify the elements of Figure 8. It is nevertheless highly indicative. Resistance of a practical nature is rarely, if ever, encountered in normal field practice by the sulfenimides (or for example, the dithio-carbamates, Figure 9) - insoluble, multisite protectives. The water soluble single site and variably translocatable antibiotics, benzimidazoles, oxathiins, etc., etc., all exhibit degrees of field resistance. As far as this author knows, this analysis can be extended over the whole class of plant protection fungicides. 

Optically non-linear materials show a change in their refractive index when exposed to electrical and electromagnetic fields, which opens the possibility to influence the propagation of light by means of external fields. Practical applications of these effects are in the sphere of optical data transmission and data manipulation. 

The sugar industry has been characterized by steady, small incremental improvements in technology and production over the years, with subsequent improvements across the process, from field practices to new products.6,7... 

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