Ryton


Redman, J., Pollution is Waste, Chem. Eng., 461 16 June 16, 1989.  [c.298]

Ci = 3-6 X 10 disintegrations per second the same number of disintegrations as produced by 1 g of radium.  [c.119]

In reality, the biending index of a compound varies according to its concentration and the nature of the product receiving it it is not, therefore, an intrinsic characteristic. In spite of this problem, refiners have long used the concept of blending index to predict and establish their refining flow sheets based on data drawn from their own experience. This approach is disappearing except in certain cases, for example, concerning the addition of oxygenates. In this manner, Table 5.11 gives estimated blending values for different alcohols and ethers when they are added in small quantities to an unleaded fuel close to the specifications for Eurosuper (RON 95, MON 85). Taking into account the diversity of situations encountered in regards to the composition of the receiving product stream, one does not retain a unique value for the blending value, but on the contrary, a margin for possible variation.  [c.203]

At first, in order to use some standard results from the theory of the Radon transform, we restrict the analysis to 2-D tensor fields whose elements belong to either the space of rapidly decreasing C° functions or the space of compactly supported C°° functions. Thus, some of the detailed issues associated with the boundary conditions are avoided.  [c.132]

The Radon transform of a scalar function can be written as f(m,Lo) = Rf — j f x)S(x-uj — m)dx,  [c.133]

The following properties of the Radon transform can be readily verified  [c.133]

After a simple modification of the standard formula, the inverse Radon transform can be written as  [c.133]

If A is invertible for all m and oj then the complete Radon transform of the tensor field is easily obtained from the inner product measurements using  [c.133]

Using the equilibrium equations of the elasticity theory enables one to reduce these integrals to the ordinary Radon transform [1].  [c.135]

The output from the turbine might be superheated or partially condensed, as is the case in Fig. 6.32. If the exhaust steam is to be used for process heating, ideally it should be close to saturated conditions. If the exhaust steam is significantly superheated, it can be desuperheated by direct injection of boiler feedwater, which vaporizes and cools the steam. However, if saturated steam is fed to a steam main, with significant potential for heat losses from the main, then it is desirable to retain some superheat rather than desuperheat the steam to saturated conditions. If saturated steam is fed to the main, then heat losses will cause excessive condensation in the main, which is not desirable. On the other hand, if the exhaust steam from the turbine is partially condensed, the condensate is separated and the steam used for heating.  [c.195]

Catalytic incinerators. Cataljdic incinerators allow oxidation of wastes at lower temperatures than conventional thermal incinerators. Operating temperatures are less than 550" C. Their advantages are lower fuel consumption if auxiliary fuel is required and less severe operating conditions for materials of construction. However, catalytic incinerators cannot handle solid waste, and catalyst fouling and aging are a problem. Catalysts are usually noble metals (such as platinum or rhodium) finely divided on a support such as alumina. Both fixed and fluidized beds are used. The most common applications for catalytic incinerators are dedicated devices to treat gaseous process vents, particularly purges.  [c.300]

Austenitic steels retain the ccp structure right down to room temperature. For this reason these steels cannot be hardened by quenching.  [c.372]

In the special case when a = 0 these measurements can be named as longitudinal, transversally longitudinal, and transverse measurement, respectively. These potentials can be reconstructed directly using the inverse Radon transform (5).  [c.135]


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Plastics materials (1999) -- [ c.593 ]