Estimate summary

Model 101 allows the creation of smaller subsets of activity pattern data from larger sets. These subsets are based on selected demographic variables and estimate summaries of duration by location and by activity. Model 102 generates simulated location patterns (e.g. location distribution and duration) for any number of people, based on actual location patterns obtained from field studies, since the sample sizes for field studies are usually restricted by economic and logistic constraints. Outputs from Model 101 can be used as input to Model 102, and the simulated location patterns can be used as input by the two inhalation-exposure-related Models 107 aud 108. 

Project Execution Plan/Master Project Schedule Table 9,1 Conceptual estimate summary. 

Table 10.4 is a typical example of a cost estimate summary. The suggested allocation of costs to the various accounts is discussed in Section 10.5. 

Table 10.4 Cost Estimate Summary Case Study...

The first level of breakdown is obviously the one shown in the Cost Estimate Summary (Fig. 10.4). This level is sufficient for the preparation of preliminary execution plans and master schedules. 

BPBGT. 2006a. Operations and Closure Agent-Contaminated Waste Disposal Estimate Summary Report, BGCAPP WP-045, Revision 0, December 28. Richmond, Ky. Bechtel Parsons Blue Grass Team. 

N Reactor Deactivation Cost Estimate Summary for Tasks Planned... 

N Area RCRA Facility Closure Cost Estimate Summary. T8-1... 

Table 8-4. N Reactor Decontamination Cost Estimate Summary. (2...

Some Permanent Displacement and Tilt Estimate Summaries... 

Field analogues should be based on reservoir rock type (e.g. tight sandstone, fractured carbonate), fluid type, and environment of deposition. This technique should not be overlooked, especially where little information is available, such as at the exploration stage. Summary charts such as the one shown in Figure 8.19 may be used in conjunction with estimates of macroscopic sweep efficiency (which will depend upon well density and positioning, reservoir homogeneity, offtake rate and fluid type) and microscopic displacement efficiency (which may be estimated if core measurements of residual oil saturation are available). 

The critical surface tension concept has provided a useful means of summarizing wetting behavior and allowing predictions of an interpolative nature. A schematic summary of 7 values is given in Fig. X-10 [123]. In addition, actual contact angles for various systems can be estimated since )3 in Eq. X-38 usually has a value of about 0.03-0.04. 

Brunauer (see Refs. 136-138) defended these defects as deliberate approximations needed to obtain a practical two-constant equation. The assumption of a constant heat of adsorption in the first layer represents a balance between the effects of surface heterogeneity and of lateral interaction, and the assumption of a constant instead of a decreasing heat of adsorption for the succeeding layers balances the overestimate of the entropy of adsorption. These comments do help to explain why the model works as well as it does. However, since these approximations are inherent in the treatment, one can see why the BET model does not lend itself readily to any detailed insight into the real physical nature of multilayers. In summary, the BET equation will undoubtedly maintain its usefulness in surface area determinations, and it does provide some physical information about the nature of the adsorbed film, but only at the level of approximation inherent in the model. Mainly, the c value provides an estimate of the first layer heat of adsorption, averaged over the region of fit. 

Each year, EPA pubHshes a summary of air pollution emissions and air quaUty trends for the criteria pollutants (4). Table 1 contains the summary for 1989. U.S. emissions estimates for these pollutants are available back to 1940 (5). 

A detailed and weU-defined estimate of world phosphate resources and reserves was prepared in 1979 (105). A summary is presented in Table 14. 

Many of the physical properties are not affected by the optical composition, with the important exception of the melting poiat of the crystalline acid, which is estimated to be 52.7—52.8°C for either optically pure isomer, whereas the reported melting poiat of the racemic mixture ranges from 17 to 33°C (6). The boiling poiat of anhydrous lactic acid has been reported by several authors it was primarily obtained duriag fractionation of lactic acid from its self-esterification product, the dimer lactoyUactic acid [26811-96-1]. The difference between the boiling poiats of racemic and optically active isomers of lactic acid is probably very small (6). The uv spectra of lactic acid and dilactide [95-96-5] which is the cycHc anhydride from two lactic acid molecules, as expected show no chromophores at wavelengths above 250 nm, and lactic acid and dilactide have extinction coefficients of 28 and 111 at 215 nm and 225 nm, respectively (9,10). The iafrared spectra of lactic acid and its derivatives have been extensively studied and a summary is available (6). 

Foreign. The OECD/NEA and IAEA have issued annual reports on world uranium resources, production, and demand since the mid-1960s (2—6). NEA/IAEA data for reasonably assured and estimated additional resources at costs of 80 and 130/kg uranium are given in Table 2 (21). These estimates incorporate data from both former world outside centrally planned economies (WOCA) and non-WOCA nations. A summary of other known uranium resources with and without cost range estimates is provided in Table 3 (22). These resources total about 1.4 x 10 t and include estimates that are not strictly consistent with standard NEA/IAEA definitions. 

The specific use appHcations of sodium chlorite varies from country to country. Important factors are the regulatory and environmental laws in effect for air and water quaUty standards. Sodium chlorite is generally priced at about four to six times the cost of sodium chlorate. The Hst price of 80% technical-grade NaC102 in January 1991 was 2.65/kg (146). In 1990, the estimated consumption of sodium chlorate for the production of sodium chlorite in Canada was about 2700 metric tons and about 9100 metric tons in the United States (74). In Western Europe, the 1990 chlorate consumption estimate was about 11,000 metric tons. A summary of 1991 U.S. and foreign sodium chlorite producer annual plant capacities in various world market areas is given in Table 3. 

Prolonged contact with certain chromium compounds may produce allergic reactions and dermatitis in some individuals (114). The initial response is usually caused by exposure to Cr(VI) compounds, but once the allergy is estabUshed, it is extended to the trivalent compounds (111,115). There is also limited evidence of possible chromium associated occupational asthma, but there is insufficient data to estimate a dose for assumed chromium-induced asthma. Reference 116 provides a summary and discussion of chromium hypersensitivity. 

A summary of the world s estimated primary copper resources is presented in Table 3. 

In summary, all estimates of resonance energies indicate a decrease in aromaticity in the sequence benzene > thiophene > pyrrole > furan. Similar sequences are also found for the benzo[6] and dibenzo analogues. A somewhat different sequence is found for the benzo[c] fused heterocycles with isoindole > benzo[c]thiophene > benzo[c]furan. As would be anticipated, the resonance energies for the benzo[c] heterocycles are substantially lower than those for their benzo[6] isomers. 

Summary of methods for estimating surface energy from the contact angle data... 

Chapter 1 provides a summary of important equations for estimating the terminal temperatures in a heat exchanger. Here we formalize a short estimating procedure for a countercurrent flow situation. Assume that a specifier of a heat exchanger has defined a preliminary sizing of the unit. The system requires heat and material balances. 

Table 6. Summary of Predicted/estimated Ground Level Concentration at Worst (Episode) Case Conditions and Weather.

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