Spiral turn

The reset should be resonant to reduee the amount of noise that eould be generated by the rapid diseharge of the elamp eapaeitor. An induetor of about 2 to 3 uH is useful. An etehed printed eireuit board spiral induetor ean also be used for this purpose, if the spaee ean be spared. Sinee the average eurrent is small, the traee need be only about 10 to 20 mils (0.25 to 0.5 mm) in width. Three spiraled turns produee about the induetanee needed. 

In both cases the distance, dstep> between spiral turns sufficiently far off the center is given by... 

Seminal work by Urry on cyclic analogs of elastin revealed a Pro-Gly type II P-tum by NMR and crystallography, which served as the basis for the P-spiral model (22,23,24). The model described a structure in which consecutive p-tums formed a helical arrangement. In this structure, there was one type II P-tum per pentameric unit of elastin, which served as spacers between the spiral turns. Further evidence for this p-spiral stmcture was compiled by molecular dynamic... 

West C.D. 1985. The relationship of the spiral turns of the cochlea and the length of the basilar membrane to the range of audible frequencies in ground dwelling mammals. J. Acoust. Soc. Am. 77(3) 1091 1101. Zhang L., Mountain D.C., and Hubbard A.E. 1996. Shape changes from base to apex cannot predict characteristic frequency changes. Diversity in Auditory Mechanics. University of Cahfomia, Berkeley,... 

For the secondary base fibers, the cell dimensions show little variation between plant species, but the number of spiral turns per unit length of cell averages only about four per millimeter, appreciably less than for the leaf fibers. 

From the results presented in Table 3.27 and in accordance with the results of [157, 158], for oirr case at 333 K, the surface layer at maximum adsorption (surfactant mass fractions from 2.25 x 10 to 7.5 X 10 is an extremely compressed monolayer, whereas the majority of dimethylsiloxane units lie on the surface of the liquid. At higher temperatures (343—353 K) but in a narrower concentration range (from 5 x 10 to 7.5 x 10 ) the polydimethylsiloxane chain tears off the sirrface, forming spiral turns of 6—8 elements, as witnessed by a single element area of 0.09-0.11 nm, which may be referred to one spiral turn [157]. From the concentration and tempera-... 

If the requirements for the application are understood reasonably well, a conventional waterfall process model may be chosen, which leads to a simple one-turn spiral. In less understood applications, however, the next step may be evolutionary in nature i.e., several spiral turns may be required in order to achieve the desired results. It can also accommodate any mixture of the previously discussed models, with the appropriate mix chosen so as to minimize the risks involved in development. 

Twist Measure of spiral turns per unit length given to yarn or strand hold constituent filaments together—S twist if spirals slope in same direction as middle portion of letter S, Z twist if spirals slope in same direction as middle portion of letter Z. 

The number of spiral turns about the axis of a strand or yarn per unit length. 

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