Tracking curve

A schedule is not required in order to gauge the percent completion at a given moment all that is needed is a value system applied to the estimate items and a milestone system to gauge progress of each item. However, in order to determine whether the work is progressing as scheduled, a tracking curve is required. 

The tracking curve is developed by superimposing (loading) the value of all the items included in the estimate on the project schedule. When the value system employed is based on hours only, the system also becomes, together with the daily force reports, an excellent way to monitor labor productivity. 

For the in-house system proposed here, the tracking curve is based on the MPS discussed in Chapter 8. If the value system is based on work hours, it should duplicate the construction progress curve included with the Firm Execution Plan. 

When values have been assigned based on fractions it is advisable to develop the tracking curve on the same basis. In any case, it is very important to remember that keeping close to the tracking curve could be inconsequential if the critical activities are not being done on schedule. 

Each -dimensional row entry of X is assigned to an index. For this, we partition each dimension in the set 7 into P sub-intervals so that we obtain alyper-cube with elements and map the dimensional vector into 0, 1,..., 7 — 1 via a plough-track curve, see Figure 2. Detail of this index assignment can be found in (PHschke 2009). 

Figure 2. Plough-track curve for a three-dimensional index assignment. 

Figure 16.2 shows P t,T) of one of the experiments. The tracking curve appears smooth and demonstrates the reliability of the tilt-angle determination. Tilt-angle variation is an issue because the oriented PP film is heated until it becomes a viscous melt. Therefore, the material shrinks and bends in the synchrotron X-ray beam. 

Figure 16.2. Tilt-angle tracking curve from the automatic fiber-mapping procedure in an experiment...

Derailments. These include plain track, curves, and jimctions. 

Permanent speed restrictions. These restrictions are imposed because of track curves or some existing infrastructure-related conditions on a certain section of a rail track. 

Now use curved arrows to track electron flow Move electrons from sites of high electron density (unshared pairs negative charge) toward sites of lower electron density... 

Use curved arrows to track electron movement and identify the acid base con jugate acid and conjugate base... 

Potassium hydride (KH) is a source of the strongly basic hydride ion ( H ) Using curved arrows to track electron movement write an equation for the reaction of hydride ion with water What is the conjugate acid of hydride lon ... 

Wnte an equation for the Brpnsted acid-base reaction that occurs when each of the fol lowing acids reacts with water Show all unshared electron pairs and formal charges and use curved arrows to track electron movement... 

A curved arrow shown as a single barbed fishhook signifies the movement of one electron Normal curved arrows track the movement of a pair of electrons... 

A standard method for prepanng sodium cyclopentadienide (CsHsNa) is by the reaction of cyclopentadiene with a solution of NaNH2 in liquid ammonia Write a net ionic equation for this reaction identify the acid and the base and use curved arrows to track the flow of electrons... 

The curves in Fig. 15-5 are greatly simplified and only apply to one instant of time. In practice there are always several trams with varying current draw on a stretch of track. Currents and potentials are then subjected to wide time-dependent variations. Without protective measures, the pipe/soil potentials are usually always more negative in the outer regions of a tramway system and more positive in the vicinity of the transformer substation. In a wide intermediate region, potential changes occur in both directions. The current entrance and exit areas can be deter-... 

In the ARC (Figure 12-9), the sample of approximately 5 g or 4 ml is placed in a one-inch diameter metal sphere (bomb) and situated in a heated oven under adiabatic conditions. Tliese conditions are achieved by heating the chamber surrounding the bomb to the same temperature as the bomb. The thermocouple attached to the sample bomb is used to measure the sample temperature. A heat-wait-search mode of operation is used to detect an exotherm. If the temperature of the bomb increases due to an exotherm, the temperature of the surrounding chamber increases accordingly. The rate of temperature increase (selfheat rate) and bomb pressure are also tracked. Adiabatic conditions of the sample and the bomb are both maintained for self-heat rates up to 10°C/min. If the self-heat rate exceeds a predetermined value ( 0.02°C/min), an exotherm is registered. Figure 12-10 shows the temperature versus time curve of a reaction sample in the ARC test. 

By integrating Eq. (13.35) step by step in time, the particle trajectory of the particle may be obtained. In the integration, the interaction between the particle and the wall may be approximated as being fully elastic however, when the particle hits the sidewall of the cyclone, the particle may be treated as being collected and the computation for the particle may terminated in order to save the computational time that may be required to track the particle to the bottom of the cyclone. If the particle trajectories for a range of particle diameters at different rates of fluid flow through the cyclone are determined, then the particle efficiency curve and the cut-off particle diameter of the cyclone may be obtained. 

This, on the one hand, reduces the detection limit so that less sample has to be applied and, thus, the amounts of interfering substanees are reduced. On the other hand, the linearity of the calibration curves can also be increased and, hence, fewer standards need to be applied and scanned in routine quantitative investigations so that more tracks are made available for sample separations. However, the introduction of a large molecular group can lead to the equalization of the chromatographic properties. 

Fig. 1 Absorption curve of a chromatogram track with 4 pg of each substance per chromatogram zone. Rhamnose (1), xylose (2), arabinose (3), fructose (4).

Fig. 1 Reflectance curve of a blank track (A) and a chromatogram (B) with 80 ng prostaglandin El (1), -front (2).

Fig. 1 Scanning curve of a chromatogram track with 100 ng per chromatogram zone of the amino acids glycine (1), alanine (2), valine (3), leucine (4).

Write an equation for the Lewis acid-Lewis base reaction between boron trifluoride and dimethyl sulfide [(0)3)25]. Use curved arrows to track the flow of electrons and show formal charges if present. 

Robinson won the 1947 Nobel Prize in chemistry for his studies of natural products. He may also have been the first to use curved arrows to track electron movement. 

Figure 4-272 shows an example of a MWD spectral GR log. On the left track, SGR is the total GR count, and CGR is this total count minus the uranium count. On the right side of Figure 4-272 the wireline spectral gamma ray in the same interval is displayed. The curves are similar but some differences occur in the amplitude of the three curves. 

A typical set of logs recorded while drilling is shown in Figure 4-280. The wireline caliper is shown in the gamma ray track. Displayed on this attachment are gamma ray, R curve, Pe curve, neutron and density curve. The delta-rho curve is the quality curve check for the density log. 

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