Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Reasoning engine

A speed controller does not ehminate the need for a recycle valve, flare valve, or suction throttling valve, but it will minimize their use. The recycle valve and suction throttling valve add arbitrary loads to the compressor and thus increase fuel usage. The flare valve leads to a direct waste of reservoir fluids and tlius loss of income. For this reason, engine speed control is rec-... [Pg.278]

Very few pump installations follow Hydraulic Institute recommendations. A minority of installations fail to follow reasonable engineering practices or even common sense. Therefore, it should not be a surprise that centrifugal pump applications often exhibit chronic reliability and maintenance problems. [Pg.523]

The Meteor system contains a dictionary of approximately 200 general reaction types. The reasoning engine contains two types of rules [28] ... [Pg.251]

In the above assessment it is expressed that the belief in CL is fj, the disbelief in CL is f2 and the uncertainty concerning weather this trust objective is met or not remains 1 — fj — f2. Such recommendations can result from the assessment of the evidence maintained within the trust case and the application of a reasoning engine which provides for propagation of believes upwards the trust case structure. More details on how this can be done can be found in [8],... [Pg.138]

A reasonable engineering compromise of these competing effects is to use an aspect ratio of-2. [Pg.42]

Underwood s method (36). This method solves an equation which relates feed composition, thermal condition of the feed, and relative volatility at the average temperature of the column for a factor 6 which lies numerically between the relative volatilities of the keys. This factor is substituted in a second equation which relates minimum reflux to relative volatility and distillate composition. The method assumes constant relative volatility at the mean column temperature and constant molar overflow (Sec. 2.2.2). This method gives reasonable engineering accuracy for systems approaching ideality (28). The Underwood method has traditionally been the most popular for minimum reflux determination, When no distributed key components are present, the method is... [Pg.108]

The latest versions of the DfW software incorporate a reasoning engine that uses log P (calculated by a C log P plug-in) and molecular mass to predict the likelihood that a chemical will express its potential toxicity regarding a specific endpoint in the selected species. This feature is, for example, used in the... [Pg.806]

This is a horrendous equation that requires simplification via reasonable engineering approximations before one can derive any meaningful results from an analytical solution. The origin of an xyz Cartesian coordinate system is placed at the center of the sphere, and it remains there throughout the analysis. The fluid approaches the stationary sphere from above and moves downward along the z axis in the negative z direction. Hence, the velocity vector (i.e., approach velocity) of the fluid far from the sphere is... [Pg.276]

The rules in the knowledge base are used by the program s reasoning engine to discriminate between all possible metabolic outcomes and the most likely... [Pg.286]

As discussed in Section 3.4, tPA-CHO cells are used to produce tPA. These cells are duplicated to a density of 3.0 X 10 cell/mL, after which the culture becomes too dense and the tPA-CHO cells die ala high rate. For this reason, engineers cultivate tPA-CHO cells in a sequence of bioreactors, each building up mass to a density of 3.0 X 10 ceU/mL, with the accumulated cell mass used to inoculate the next largest reactor, until the desired cell mass is reached. [Pg.150]

When a manufacturing company is making millions of parts, it is not possible to measure each part For this reason, engineers and engineering technologists use a type of mathematics called statistics to guarantee that parts are made to the right toler-... [Pg.335]

The most critical skill of an entrepreneur is salesmanship. More than any other single skill, entrepreneurs must be able to sell their ideas. Social entrepreneurs have an even more difficult hurdle to overcome than most salespeople, because they must sell their idea to both clients and donors, often for very different reasons. Indeed, the inability, or perhaps unwillingness, to sell is probably the most common reason engineers fail to be successful entrepreneurs. [Pg.241]

Product quality Toyota. In late 2003, Toyota s capitalization was 110 billion, outranking the combined value of DaimlerChrysler, Ford, and General Motors of 84 billion. The reason engineering achievements and dedication to quality. [Pg.23]

Answer by author The cool-down formula for horizontal piping is applicable, with reasonable engineering accuracy, to systems containing vertical piping. [Pg.333]

Usually any material undergoes a reversible transformation of state with an increase of its temperature in the order depicted in Figure 1.8. Each reversible transformation requires a certain amount of energy to occur. At constant pressure, this energy per unit amount of matter of the material is called the standard latent molar enthalpy of the transformation (formerly the latent heat), denoted and expressed in J.moF For practical reasons, engineers prefer to use the latent enthalpy per unit mass of the substance called the specific latent enthalpy of the transformation, denoted and expressed in J.kg The simple relationship between the two quantities is as follows ... [Pg.31]

The third reason engineers have to be confused about the moral status of then-code of ethics is controversy concerning whether - to be more than mere window... [Pg.79]

Nuclear-powered submarines were developed in parallel with commercial nuclear power plants in the early 1950s. The U.S.S. Nautilus, the first nuclear-powered submarine, commenced sea trials in 1955. Shippingport began to produce electrical power in 1957. Since the submarine crew had no avenue of escape while the ship was at sea and major ports were generally large population centers, remote siting could not be relied upon to acceptably limit the consequences of an accident. Nor could containment be reasonably engineered for a submarine. [Pg.20]

These proposals may involve the Contractor in expense for which he will not be reimbursed, and under the existing Conditions of Contract he is not compelled to make the changes. With a reasonable Engineer and a reasonable Contractor no difficulties will arise. The problem is to protect the Contractor from the Engineer who makes unreasonable demands, and the Engineer and his Client from the Contractor who tends to take undue risks in order to cut his costs. [Pg.5]


See other pages where Reasoning engine is mentioned: [Pg.243]    [Pg.206]    [Pg.806]    [Pg.83]    [Pg.527]    [Pg.26]    [Pg.643]    [Pg.119]    [Pg.394]    [Pg.7]    [Pg.323]    [Pg.371]    [Pg.411]    [Pg.327]    [Pg.257]    [Pg.42]    [Pg.113]    [Pg.7]    [Pg.5]    [Pg.79]    [Pg.80]    [Pg.1351]    [Pg.2781]    [Pg.33]    [Pg.96]   
See also in sourсe #XX -- [ Pg.527 ]




SEARCH



Engineering reasoning

© 2024 chempedia.info