Big Chemical Encyclopedia

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

Articles Figures Tables About

Demand direct

Similarly, the condition dE/dV)T = 0 for an ideal gas demands direct proportionality between P and T, for according to Eq. (14) we then have... [Pg.451]

So far as steric effects are concerned, the least energy-demanding direction of approach by the nucleophile to the carbonyl carbon atom will be from above, or below, the substantially planar carbonyl compound. It is also likely to be from slightly to the rear of the carbon atom (cf. 12), because of potential coulombic repulsion between the approaching nucleophile and the high electron density at the carbonyl oxygen atom ... [Pg.206]

These demands directly or indirectly affect other countries wishing to trade in Europe. In recent years other European countries have also assumed the regulation of additives from the EC Directive to be compatible in multinational... [Pg.289]

EC C.5. Degradation biochemical oxygen demand. Directive 67/548/EEC, Annex V. (1992)... [Pg.512]

Our approach differs from the above identified contributions with respects to some of its key ideas. Most of the other approaches implement external experience repositories decoupled from the running system, and the user has to manually provide a description of the problem and query them. In contrast, the PRIME reuse interfaces exploit the process integration mechanism in order to continually monitor the actual situation at the technical workplace and, on demand, directly present to the user the relevant experiences from the past. Moreover, while the experience gathered by most other CBR systems captures a pure description of the problem and its related solution, PRIME exploits whole trace chunks that further capture the temporal dimension of the solution in the form of precise steps that other users followed (the interested reader is... [Pg.221]

In many ways, SCF processing and controlled particle formation satisfies most of these demands directly by virtue of the inherent features of the process. As a single step, enclosed operation with mass balance, high yields of very consistent products can be achieved. [Pg.221]

This is the process of establishing the time taken to perform a specified task by a qualified worker operating at a defined level of performance. Both of these measures are difficult to define, and hence, the process is quite controversial. Nevertheless, basic procedure involves three distinct phases -analysis, measurement, and synthesis. Measurement techniques like time study and analytical estimating usually demand direct observation. An understanding of work-time consequences is unquestionably crucial to job design. [Pg.190]

Key to the performance of this controller is the choice of G. Firstly the same value should be used for both positive and negative variations from SP. This symmetry, combined with symmetrically placed high and low level limits, ensures that we do not have to tune the controller for disturbances in the more demanding direction and thus underutilise surge capacity for disturbances in the opposite direction. [Pg.110]

Functional fibers are the demand directly from the market many functions have been actually put into practice, such as antimicrobial, anti-UV, far infrared, antistatic, FR,... [Pg.59]

The numerous requirements of the resist in any technology have been amply demonstrated and those of sensitivity, resolution and etch resistance have been described in detail. It is apparent from this that many of the demands directly conflict and one property is often sacrificed in order to optimise another. For example, resists capable of high resolution commonly require extended exposure times, and choice of molecular weight must compromise increased sensitivity with increased swelling on development. Another problem concerns the resist thickness. Thinner resists produce a proportional improvement in resolution but also reduce their ability to protect the substrate in etching media. [Pg.237]

For the distributors that receive their demand directly from a plant, two sets of constraints (Equations 5.14 and 5.15) must be introduced. These constraints determine the number of containers to be sent from each plant to each distributor in each period. A constraint in this set is only true if a distributor receives its demand directly from a plant (option 4). An integer variable... [Pg.142]

Lactic acid is a three-carbon alpha-hydroxy acid that exists in two enantiomers, whose carboxyl and hydroxyl groups can undergo a number of reactions that make it a versatile building block. The global annual demand for lactic acid is estimated to be at least 130000 tonnes with approximately 85% of this demand directed towards food and food-related applications [8]. Out of the food applications, more than 50% is used for producing emulsifiers such as lactic acid esters of fatty acids and monoglycerides discussed previously [3]. However, the new applications, such as green solvents and polylactic acid (PLA) plastics, have driven a sharp increase in production in recent years [33]. [Pg.133]


See other pages where Demand direct is mentioned: [Pg.570]    [Pg.282]    [Pg.7]    [Pg.504]    [Pg.7]    [Pg.7]    [Pg.217]    [Pg.94]    [Pg.143]    [Pg.103]    [Pg.184]    [Pg.158]    [Pg.204]    [Pg.199]    [Pg.95]    [Pg.41]    [Pg.213]   
See also in sourсe #XX -- [ Pg.46 ]




SEARCH



Direct numerical simulations computational demand

© 2024 chempedia.info