Tunneling 238 INDEX

Introduction to scanning tunneling microscopy / C. Julian Chen, p. cm. (Oxford series in optical and imaging sciences 4) Includes bibliographical references (p. ) and index. 

To avoid confusion, let us explain the difference between the probability Wlh determined by eqn. (19) and the probability Wfn nj), determined by eqn. (38). Wt is the probability of transition from the state with the complete set of quantum numbers for the nuclear motion (the index i characterizes this set). Wfn rif) is the probability of tunneling with the fixed quantum numbers Ti, and nt of one quantum oscillator while by all the other (classical) oscillators the averaging has been carried out. 

Figure 2. Undersized waveguide used in microwave tunneling experiments (a) waveguide with central reduced cross section (b) waveguide filled with two dielectrics with different refractive indexes n > (c) the same quantum potential...

N electron/hole excitations is characterized by the set of excitation energies Cfe P2 where the index k labels the quantum number of excitation p. k labels its quantum number. Assuming a simple model for electron tunneling matrix elements [7]... 

Eickner and Schaffer (10) found that monoammonium phosphate (Figure 2) was the most effective of different fire-retardant chemicals in reducing the flame-spread index of Douglas-fir plywood. They used the 8-foot tunnel furnace of ASTM E286 (37). 

In terms of fire safety, there are no fire resistance requirements and all interior surfaces must comply with the FSI of 200 in the Steiner tunnel test, ASTM E 84,114 or a radiant panel index of 200 in the radiant panel test, ASTM E 162.55 Thermal insulation materials, other than foam plastics, must meet an ASTM E 84 Class A requirement (i.e., FSI < 25 and SDI < 450) and loose-fill insulation must meet the same requirements as the building codes, which are mostly based on smoldering tests (as the materials tend to be cellulosic). Foam plastic insulation must be treated as in the building codes as well (see Table 21.13) it cannot be used exposed (expensive foam that meets the NFPA 286 test is not used in manufactured housing) and must meet an ASTM E 84 Class B requirement behind the thermal barrier. 

ASTM E 84 Steiner tunnel test, thus generating more useful results. Figure 21.13 shows a room-comer test layout. The cone calorimeter fire-performance index (with tests conducted at 50kW/m2)179 was shown to be a good predictor of time to flashover in FAA full aircraft fires170 180 and in the ISO 9705 room-corner test.181 In addition, the same cone calorimeter tests, but using only heat release criteria, have been shown to have almost perfect predictability of ISO 9705 room-comer test rankings.181... 

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