Obtaining data resistance

In 1987, Swartz [73] measured the thermal boundary resistance between metal films and the dielectric substrates onto which the films were deposited, in the range 0.6-200 K. A typical example is the measurement of the thermal contact resistance between indium and sapphire [72]. To minimize the dependence on surface irregularities, indium was vacuum deposited onto the sapphire rods the two surfaces were then pressed together and annealed. Analogous measurements have been carried out also with lead and aluminium. In all these cases, it has been clear that the contact resistance was strongly dependent on the sample preparation. In particular, obtained data suggest that the contact between the two materials was not complete. 

They examined the proposal that bacterial resistance to antimicrobials is Increasing worldwide at an alarming pace. They obtained data that included over 43 million individual tests. The study (19), showed that the resistance of most bacteria to most antibiotics had not changed during the past 12 years. Lorian... 

To a first approximation, the BLM can be considered to behave like a parallel plate capacitor immersed in a conducting electrolyte solution. In reality, even such a thin insulator as the modified BLM (designated by and R, in Fig. 108) could block the specific adsorption of some species from solution and/or modify the electrochemical behavior of the system. Similarly, System C may turn out to be a semiconductor(l)-insulator-semiconductor(2) (SIS ) rather than a semiconductor(l)-semiconductor(2) (SS ) junction. The obtained data, however, did not allow for an unambiguous distinction between these two alternative junctions we have chosen the simpler of the two [652], The equivalent circuit describing the working (Ew), the reference (Eg), and the counter (Ec) electrodes the resistance (Rm) and the capacitance (C of the BLM the resistance (R ) and capacitance (Ch) of the Helmholtz electrical double layer surrounding the BLM as well as the resistance of the electrolyte solution (RSO ) is shown in Fig. 108a [652],... 

If abrasion loss is measured as a function of test parameters such as speed, temperature, degree of slip, contact pressure etc, it may be possible to combine the results in some way to produce a composite measure of abrasion resistance. Obtaining data as a function of test parameters is impossible, or at least very tedious, with most apparatus, but can be achieved automatically with the LAT system (see Section 2.6). 

The values in parentheses are obtained from resistivity data % D is the orthorhombic distortion. 

For the highly anisotropic organic superconductors, of course, the critical fields depend also on the field direction. Most experimental data exist for (TMTSF)2C104 since for this material measurements at ambient pressure are possible. Figure 2.10 shows the temperature dependence of Bc2 obtained from resistivity measurements [103]. The anisotropy is clearly seen. The extrapolated critical fields at zero temperature are B 2 2.8 T, B 2 2T, and... 

It is evident that RubCon is a corrosive-stable structural material because its chemical resistance coefficient during 10 years of operation in aggressive environments exceeds 0.5. The obtained data allow determination of the thickness of the concrete cover of a reinforced RubCon structure. 

According to the results of Fujimura et al. [45], the minimum inhibitory concentrations (MICs) of MBC (12) and diethofencarb (15) for wild-type N. crassa were 0.2 ppm and >100 ppm, whereas for N. crassa F914 they were >100 ppm and 0.1 ppm, respectively. Therefore, an experiment using two combination systems, (1) benzimidazole-resistant strain + diethofencarb + emodin, and (2) benzimidazole-susceptible strain + MBC + emodin was carried out in order to obtain data on whether emodin could exhibit antidote activity in both systems. In this experiment, only emodin was used as an antidote because of the relatively weak activity of other antidotes in the interaction of MBC with wild-type N. crassa [44]. The results are summarized in Table 6, and indicate that emodin (18) can also act as an antidote against diethofencarb (15) in a benzimidazole-resistant strain of N. crassa. These and other results (Tables 4 and 6) are indicative of the versatility of emodin (18) as an antidote to the action of certain types of fungicide which possess an affinity for fungal P-tubulin, and may suggest that the antidote effect of emodin is closely linked to the function of P-tubulin. 

By using Wn = 1,0m, f/j = 1.0 eV, and Lj, = 35 A in Eqs. (12) and (13), we obtain the resistivity anisotropy as a function of the a-Si H layer thickness Lg shown in Fig. 11. Although the model curve in Fig. 11 does not fit the data in detail, it does reproduce the overall shape and approximate magnitude of the anisotropy in the resistivity as a function of Lg- This semiquantitative agreement between the resistivity anisotropy and the one-dimensional tunneling model supports the quantum well interpretation of the optical data and confirms the structural integrity of the a-SiNj, H layers. 

She has employed resistance measurements to monitor the progress of this reaction. Her exposure to reaction kinetics leads her to suggest that it would be appropriate to assume that the presence of a large excess of ethanol will lead to a rate expression that is pseudo-nth-order in RBr. Sue knows that it is often convenient to obtain data at time intervals separated by a constant time increment and has taken these precautions. She also knows that when monitoring the progress of areaction via physical property measurements, one requires measurements at times zero and infinity. Unfortunately, her measurements at these times are invalid because of an equipment malfunction. She is perplexed and wonders if she will have to repeat the experiment. 

The goal of calibration is to obtain data for the temperarnre-dependent resistance of the RTD being calibrated. This is often done by measuring the RTD resistance at several fixed points, for... 

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