Sensitization degree

The ultimate purpose of these types of tests is to evaluate two similar (in results) but different occurrences. These are runaway chemical reactions and exothermic chemical decompositions. The first may actually just be a desired reaction out of control while the second is an undesired reaction out of control. Among the purposes which analytical tests serve are the determination of the "onset" of exothermic (endothermic) decomposition. While frequently a specific temperature is cited for such "onsets," one must remember that this temperature is highly dependent on instrument sensitivity, degree of adiabaticity and time-temperature history. It should be stated that tests results are accurate only for the exact conditions under which they were run. Physical factors such as density and geometry can also influence test data. In theory, reaction rates are not a step function but are continuous. 

One fascinating observation by this author is that this type of damage is detected most readily by microscopic techniques or macro detection techniques. It seems to me that the development of methods to measure swelling of the upper cuticle layers may some day reveal this damage in a more sensitive manner than the techniques used today because, for a crack to appear in the hair, considerable damage at the molecular level must have occurred, leaving room for detection to a more sensitive degree than by the methods used today. 

Table 1. Classification of uncertainly factors with respect to sensitivity, degree of uncertainty and manageability. 

Table 5 presents the maximum variation caused on concentration for each input and the variables sensitivity degrees for both scenarios. The changes up to 10% in the temperature cause minor effects in the results, since this variation is not enough to represent a change in the atmospheric stability. However, it is important to note that in different scenarios in which the evaporation process may take longer (such in a case of pool formation), the influence of variations in the ambient temperature may increase, since it will directly affect the vaporization rate. 

Parameter Maximum variation on results Sensitivity degree... 

It is worth noting that the results showed a low sensitivity degree to temperature and roughness variations in the selected scenarios. However, this degree can be higher in other scenarios for example, in scenarios in which there is pool formation, variations in ambient temperature probably will influence more the results, since this parameter affects the evaporation process. 

Plant Scientific name Inhibitory potency (%) Sensitive degree... 

In this case, we can conclude that the small sensor is lightly tilted with an angle of 0,25 degrees. We have concluded, during experimentations, that the measurement of the magnetic field is very sensitive to the angle of inclinaison of the sensor. In this way, we validate the computation of the incident field E (r). We can also expect some difficulties for the validation of the forward problem by experimental data. 

For existing ships the only NDE method nominated by classification for the detection of fatigue cracks is close-up visual inspection - although all Surveyors have the option of requesting additional NDE when warranted. The sensitivity of visual inspection is influenced by the degree of surface preparation and the level of lighting at the inspected surface - which may not always meet the level of 500 lux nominated by some NDE specifications. 

Figure IV-10 illustrates how F may vary with film pressure in a very complicated way although the v-a plots are relatively unstructured. The results correlated more with variations in film elasticity than with its viscosity and were explained qualitatively in terms of successive film structures with varying degrees of hydrogen bonding to the water substrate and varying degrees of structural regularity. Note the sensitivity of k to frequency a detailed study of the dispersion of k should give information about the characteristic relaxation times of various film structures.

Thermographic Sensitivity. The noise equivalent temperature difference (sensitivity to scene temperature variations ia degrees C) maybe expressed ia terms of the NEP ... 

Process Concepts. Hybrid systems involving gas-phase adsorption coupled with catalytic processes and with other separations processes (especially distillation and membrane systems) will be developed to take advantage of the unique features of each. The roles of adsorption systems will be to efficiently achieve very high degrees of purification to lower fouUng contaminant concentrations to very low levels in front of membrane and other separations processes or to provide unique separations of azeotropes, close-boiling isomers, and temperature-sensitive or reactive compounds. 

Lead azide is not readily dead-pressed, ie, pressed to a point where it can no longer be initiated. However, this condition is somewhat dependent on the output of the mixture used to ignite the lead azide and the degree of confinement of the system. Because lead azide is a nonconductor, it may be mixed with flaked graphite to form a conductive mix for use in low energy electric detonators. A number of different types of lead azide have been prepared to improve its handling characteristics and performance and to decrease sensitivity. In addition to the dextrinated lead azide commonly used in the United States, service lead azide, which contains a minimum of 97% lead azide and no protective colloid, is used in the United Kingdom. Other varieties include colloidal lead azide (3—4 pm), poly(vinyl alcohol)-coated lead azide, and British RE) 1333 and RE) 1343 lead azide which is precipitated in the presence of carboxymethyl cellulose (88—92). 

Two-speed motors are typically used on noncondensing services where the process is not sensitive to temperature but mostly seasonal or variable throughput of fluids in the air cooler requires some degree of air flow control. This is a simple, rather inexpensive means to control air flow when volume air flow is not critical. Typical motor ratings are 1800/900 rpm, although 1800/1200 rpm types are available. 

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