Resistance significance

After drying, the filter paper displays a resistance of40-100 kQ, measured with a multimeter by pressing the electrodes into the polypyrrole powder at a distance of 1 cm. The resistance may vary depending on the location of measurement, since the polypyrrole thickness and distribution may vary on the filter paper. Without the polypyrrole, the filter paper has a resistance of at least 10 Q, which in most cases lies beyond the measuring range of the multimeter.Thus it can be shown that the polypyrrole reduces the resistance significantly. 

X-ray diffraction studies of the spent catalysts in the absence of sulfur, indicate that after 1 h the oxycarbide and oxynitride particles resist significant agglomeration. XPS analysis of the spent catalysts indicates that... 

Lipid bilayers are flexible and they cannot resist significant mechanical stress. Cells which have to survive external forces such as bacteria or cells which have to provide mechanical stability have an outer cell wall in addition to the lipid membrane. 

It is further worth noting that the observed level of Bac7-resistance is equivalent for the point mutated and null mutants, thus indicating that the point mutation is sufficient to completely abolish its function regarding Bac7 resistance. Significantly, this mutation leads to a Glu to Lys substitution at position 276 at a site predicted to be located between two transmembrane helices, and... 

Work is now in progress to minimize the effects of decoking on catalyst attrition resistance. Significant results are discussed In the talk,... 

The volume resistivity of the substrate was not an important effect in any of our models. This was a consequence of selecting the substrate material to have a resistivity significantly greater than that of the polymer in all cases. For substrates with resistivities which approached that of the polymer, the model can easily be modified. One would then expect that the substrate current would contribute to the total current by approximately the ratio of the substrate to polymer resistivity. 

Field resistance Significant shifts in sensitivity not yet leading to loss of control ... 

Note If we want to know how much thermal resistance is typically attributable to thermal grease, we must remember that without this grease we would have air in the spaces between the device and heatsink, and that is a very poor thermal conductor. Thermal grease lowers this interface resistance significantly by filling the... 

The same variation of the rate constant can be obtained by changing the temperature. A relatively small increase of the temperature is equivalent to a large increase of the gas flow, probably reducing the film diffusion resistance significantly. This result is consistent with the previously described observations of a film diffusion-control process at low temperatures and chemical reaction control at high temperatures. 

The addition of 0.2Zr and 0.2Hf improved the oxidation resistance significantly even under thermal cycle conditions with temperature varying between room temperature and 1300 K for at least 100 cycle (100 h). 

The life of a HEPA filter can be extended with the placement of prefilters to screen out coarse particulates. Prefilters can be made of fiberglass media, the type commonly used for furnace filters, orthey can be composed of a thin open-celled foam. Prefllters of the lattertype Increase resistance significantly whereas furnace type filters increase resistance only slightly. In this regard, furnace filters are well suited because they are cheap (lessthan five dollars), readily available, and come In numerous sizes. 

In 19 healthy parturients undergoing elective cesarean section who were to phenylephrine or ephedrine as a prophylactic infusion supplemented with minor boluses if systolic arterial pressure fell by more than 10 mmHg, both the vasopressors restored maternal arterial pressure effectively [25 J. Ephedrine had no significant effects on Doppler velocimetry but phenylephrine infusion significantly increased the blood flow velocity waveform indices in the uterine and placental arcuate arteries and reduced vascular resistance significantly in the fetal renal arteries. However, healthy... 

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