Time criterion

Constancy in Time Criterion if the initial state is such that the location of sets of initially nonzero sites is rotationally symmetric with respect to the axis of the torus defined by periodic boundary conditions, the resulting pattern becomes stable after a few time steps and remains conserved for all later times. 

The transportation time criterion is used to group transportation lanes uniquely into one of the shown three index sets. Transportation lanes with transportation time longer than 0 are additionally grouped in index set 4. Grouping of transportation lanes will be used to later distinguish different transportation cases leading to different equations to calculate transportation sent and received quantities. 

Based on the optimization criterion, SpinPro can select the most appropriate rotor. For example, suppose the investigator has a relatively large sample volume, all of which needs to be processed as soon as possible. The "minimize cumulative run time" criterion would be the appropriate choice. SpinPro would then initiate the following rotor selection procedure SpinPro determines the total sample volume based on inputs of the sample volume, the current concentration of the sample, and a correction for any pre-run dilutions of the sample. Next, consideration is made for whether tubes or bottles will be used. The program then evaluates rotors for the number of tube positions and the amount of sample per tube. At this point, SpinPro will have estimated for each rotor the number of runs required to process the sample. SpinPro then estimates the run time for each rotor to perform a single run. Based on these estimates, SpinPro selects the rotor that will give the shortest total run time when the run time is summed over the total number of runs. Similarly, the investigator can select any of the optimization criteria and initiate a variety of precise rotor selection procedures. 

The short-time criterion is the more stringent except when H 1 and p/ 1. External resistance controls and the concentration within the particle is uniform when the inequalities in Eqs. (3-74) and (3-75) are reversed. Even if the external resistance is not negligible relative to the internal resistance, it may be possible to assume constant external resistance, i.e., quasi-steady behavior. Comparison... 

The residence-time concept is commonly misunderstood. The residence time is defined here as the downcomer volume divided by the liquid flow-rate. Typically, it is said that a liquid-residence time is required to allow adequate disengagement of vapour. Generally, two mechanisms are at work in a downcomer to provide the separation of vapour from liquid. The more obvious one is the relative velocity of the phases. If the downward velocity of the liquid exceeds the bubble-rise velocity, it does not matter how much residence time is provided, separation will not occur. This is true unless there is coalescence (the second mechanism), which there always is, to some extent. Coalescence is time dependent and therefore a residence-time criterion has some relevance. 

The implant range dependence has been verified for B implants from 1 to 60 keV (Figure 27). Equation 56 is applied to the calculations until the implant damage has been annealed, and then Denh = 0. The maximum allowed value of Denh is 1.5 X 10 12 cm2/s. The damage anneal time criterion was derived from data that show initial rapid B diflusion during RTA and then a marked slow-down (51). 

Ascertain whether the afterburner meets the agency s criteria. The afterburner operates at 1400°F (1033 K), so it meets the temperature criterion. The residence time of 0.363 s meets the residence-time criterion. And the gases pass through the vessel at 38.6 ft/s (11.8 m/s), which satisfies the velocity criterion. Thus, all three criteria are satisfied. 

A time criterion is an easy to determine, but inaccurate measured quantity, which possesses a low sensitivity. Who can decide purely visually, whether it is 0.7 or 1.3 s. In addition, this quantity is unfortunately chosen from the dimensionally analytical and scale-up standpoint, because it is not dimensionless [112]. However, this situation is not disadvantageous, simply because this quantity is so insensitive. 

The time criterion mentioned above is usually taken as the time necessary for an acoustic wave to traverse an electron-scattering mean flee path in the solid. Let such a time be If the pulse duration is t, then the constant-volume definition of the equation above requires... 

Optical Efficiency As discussed in above sections, the ability to perceive a label design varies with certain optical characteristics. After establishing the exposure time criterion the labeler must also define the distance at which viewing is to be tested and the level of illumination required and then state what elements of the label are to be perceived and remembered. Two criterion variables are then measured for the test label and compared to another version or to a competitive label. 

REGULATORY STATUS Criterion to protect freshwater aquatic life 68 pg/L based on acute toxicity, 21 pg/L based on chronic toxicity, 1.2 pg/L/24-hr avg., concentration not to exceed 2,7 pg/L any time Criterion to protect saltwater aquatic life 55pg/L based on acute toxicity, 0.88pg/L/24-hr avg., concentration not to exceed 2.0 pg/L any time Criterion to protect human health 320 pg/L 6.5 pg/L was also suggested the following are guidelines in drinking water set by some states 320 pg/L (Kansas and Arizona)... 

REGULATORY STATUS Criterion to protect freshwater aquatic life 6.2 pg/L/24-hr avg., concentration not to exceed 14 pg/L any time Criterion to protect saltwater aquatic life insufficient data Criterion to protect human health insufficient data to develop a criterion... 

---