Subject uniform

Articles were prepared in the Federal Bureau of Narcotics, at the request of a number of organizations dealing with this general subject [uniform state drag laws] for publication by such organizations in magazines and newspapers. An intelligent and sympathetic public interest, helpful to the administration of the narcotic laws has been aroused and maintained. 

Two samples from each subject were randomly drawn from each time window for a total of six samples per subject. Uniformly distributed random and systematic errors from 5 to 50% relative error from the true sample times were then introduced into the sample times. For example, if the true time was 5 and the random error was 10% the sampling could occur from 4.5 to 5.5, whereas systematic errors were treated as fixed percentages from the true value. Data was analyzed using FO-approximation using the model used to simulate the data. 

For dose-response studies, probit analyses (Robertson Preisler 1992) can be used analogously to their use for pesticides, although relatively large sample sizes may be needed for the fiducial limits of the probit line to exclude zero. Sample sizes should be based on the variability of the data (i.e., the coefficient of variation or the magnitude of the treatment effect relative to the magnitude of within-treatment variation Sokal Rohlf 1995, box 9.14 and box 10.8). However, logistical constraints on subject uniformity or availability of test chemicals from natural sources may make such optimal sample sizes unobtainable. 

Variational methods - theoretically the variational approach offers the most powerful procedure for the generation of a computational grid subject to a multiplicity of constraints such as smoothness, uniformity, adaptivity, etc. which cannot be achieved using the simpler algebraic or differential techniques. However, the development of practical variational mesh generation techniques is complicated and a universally applicable procedure is not yet available. 

Elastic Behavior. In the following discussion of the equations relevant to the design of thick-walled hoUow cylinders, it should be assumed that the material of which the cylinder is made is isotropic and that the cylinder is long and initially free from stress. It may be shown (1,2) that if a cylinder of inner radius, and outer radius, is subjected to a uniform internal pressure, the principal stresses in the radial and tangential directions, and <7, at any radius r, such that > r > are given by... 

The state of stress in a cylinder subjected to an internal pressure has been shown to be equivalent to a simple shear stress, T, which varies across the wall thickness in accordance with equation 5 together with a superimposed uniform (triaxial) tensile stress (6). 

If it is assumed that uniform tensile stress, like uniform compressive stress (7), has no significant effect on yield, then the yield pressure of a cylinder subjected solely to an internal pressure may be calculated from... 

The acceptance of optical data storage iato the mass storage market, which is as yet exclusively dominated by magnetic systems, will be fundamentally boosted if optical drives and media are subject to uniform standards and become fully compatible, and multiuser drives are offered which enable the user to employ alternatively CD-ROM and EOD disks, and maybe WORM disks as well (and CD-R disks, respectively). A prerequisite, however, will be whether rewritable optical memories will use the MOR or the PCR process. This accord especially will be hard to reach. 

Because there is no "federal law of trade secrets," protection of trade secrets is often left to the variabHity of the criminal and civil laws of the 50 states. To the extent that a trade secret is property, violation, theft, or misappropriation of the trade secret may be the subject of criminal penalty. To the extent that a trade secret is bound to rights, violation or misappropriation of the trade secret may be the subject of civil penalty. Significant effort, however, has been made in developing a uniform body of law to apply to ideas and innovations which may be the subject of this form of protection. 

Construction. The addition of PEO to concrete has been a subject of several iavestigations (172). Research studies and patent Hterature suggests that PEO can be used as a pumping aid to concrete where the lubricity of PEO allows concrete to be pumped to longer distances (173—176). In addition, PEO is also used to disperse the water more uniformly ia the concrete mixture that promotes better uniformity of the concrete mixture. Eormulations ia the constmction industry are proprietary and not easily available. 

Isostatic pressing gives a highly uniform product, although the production rate is somewhat low. It typically contains very small grains and Uttle or no porosity. In this process, a mbber sock or bag of the desked shape is filled with the refractory mix. The sock is then subjected to extremely high pressure in a hydrauUc pressure chamber. 

In alloy steels, particularly if these have been slowly cooled after rolling, the carbides in the as-roUed condition tend to be massive and are difficult to dissolve on subsequent austenitization. The carbide size is subject to wide variations, depending on the rolling and slow cooling. Here, again, normalizing tends to estabUsh a more uniform and finer carbide particle size that faciUtates subsequent heat treatment. Although an expense, this process provides more uniform quaUty in the finished product. 

The general criterion of chemical reaction equiUbria is the same as that for phase equiUbria, namely that the total Gibbs energy of a closed system be a minimum at constant, uniform T and P (eq. 212). If the T and P of a siagle-phase, chemically reactive system are constant, then the quantities capable of change are the mole numbers, n. The iadependentiy variable quantities are just the r reaction coordinates, and thus the equiUbrium state is characterized by the rnecessary derivative conditions (and subject to the material balance constraints of equation 235) where j = 1,11,.. ., r ... 

The sohd line in Figure 3 represents the potential vs the measured (or the appHed) current density. Measured or appHed current is the current actually measured in an external circuit ie, the amount of external current that must be appHed to the electrode in order to move the potential to each desired point. The corrosion potential and corrosion current density can also be deterrnined from the potential vs measured current behavior, which is referred to as polarization curve rather than an Evans diagram, by extrapolation of either or both the anodic or cathodic portion of the curve. This latter procedure does not require specific knowledge of the equiHbrium potentials, exchange current densities, and Tafel slope values of the specific reactions involved. Thus Evans diagrams, constmcted from information contained in the Hterature, and polarization curves, generated by experimentation, can be used to predict and analyze uniform and other forms of corrosion. Further treatment of these subjects can be found elsewhere (1—3,6,18). 

Whereas the addition of early metal soaps to a coating for the specific purpose of improving the drying performance did so, the compounds lacked uniformity of composition and therefore did not give predictable results. Even if all of the metal reacted with the acid to give an expected metal ion concentration, which seldom happened, the ions were subject to oxidation, which resulted in loss of solubiUty in the vehicle and therefore a loss of activity. 

Mixing of fluids is a discipline of fluid mechanics. Fluid motion is used to accelerate the otherwise slow processes of diffusion and conduction to bring about uniformity of concentration and temperature, blend materials, facihtate chemical reactions, bring about intimate contact of multiple phases, and so on. As the subject is too broad to cover fully, only a brier introduction and some references for further information are given here. 

The physical properties of spray-dried materials are subject to considerable variation, depending on the direction of flow of the inlet gas and its temperature, the degree and uniformity of atomization, the solids content of the feed, the temperature of the feed, and the degree of aeration of the feed. The properties of the product usually of greatest interest are (1) particle size, (2) bulk density, and (3) dustiness. The particle size is a function of atomizer-operating conditions and also of the solids content, liquid viscosity, liquid density, and feed rate. In general, particle size increases with solids content, viscosity, density, and feed rate. 

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