Carrier layer

GL 18] [R 6a] [P 17] CFD calculations were performed to give the Pd concentration profile in a nanopore of the oxide catalyst carrier layer [17]. For wet-chemical deposition most of the catalyst was deposited in the pore mouth, in the first 4 pm of the pore. Hence most of the hydrogenation reaction is expected to occur in this location. For electrochemical deposition, large fractions of the catalyst are located in both the pore mouth and base. Since the pore base is not expected to contribute to large extent to hydrogenation, a worse performance was predicted for this case. 

For lipase, initial activity corresponds to the amount of protein that was adsorbed. Specific activity is constant at 1 mmoFs gE for this carrier-enzyme system, which compares to 27% of the free enzyme activity. The trypsin system shows a lower specific activity that is only 10% of the free enzyme. The reason for the lower recovered activity of this system is not known. To rule out possible internal diffusion limitations, the Wheeler-Weisz modulus was estimated, assuming a carrier layer thickness of 0.1 mm for all carriers. Using the data of the experiments performed at 150 rpm, one finds ... 

Carrier layer Reagent layer Spreading layer... 

Spreading layer Reflectance layer Reagent layer Porous filter Indicator layer Carrier layer... 

The lowermost, last layer is the carrier layer made from a transparent polyester plastic (e.g. polyethylene terephthalate). Reflectometric measurement can be effected from this side and through this layer. 

Liquid Cl can be contained in a specific carrier layer (Fig. 2.3, c, d) or in the space between layers of a multilayered film (Fig. 2.3e), as well as in a jelly-like polymer of a single-layered film. 

Classification of capillary columns seems to be a basic problem in gas chromatography [42-44]. Some authors believe that the terms open capillary columns with a porous layer on the inner wall surface and open capillary columns with a solid carrier layer on e inner walls are badly confused. One reason for this situation is an insufficiently strict classification of capill uy columns. We proposed a more general (in our opinion) classification based on the following criteria (1) the presence (or absence) of a porous layer on the inner capillary column walls eind (2) the presence (or absence) of a stationary liquid phase layer on the inside column walls (see Table 1-4 [45]). 

In addition to the usually imavoidable electroosmotic fiow, movements in the electrolyte solution can also occur which are controllable. Should the supporting layer not have been completely saturated with liquid at the beginning of the experiment, an initial suction from both sides towards the centre occurs, even without application of an electric field. Evaporation takes place if the carrier layer becomes warmer than its surroundings, as a result of the heat generated by the current. The layer thus sucks buffer solution out of the electrode compartments. This evaporation suction causes electrolyte flow from the sides towards the centre of the coated plate. 

KR 2944 - KR 2758 in coextruded film acts as a carrier layer (heat sealing packing cups). A protective lacquer layer ensures that lid and container do not bond together during heat sealing... 

Figure 5. Scheme of a typical carpet floor covering layout 1 - layer of face fibers 2 - textile carrier layer 3 - adhesive layer (latex) with fillers 4 - textile underlay (cushioning), backing [37]... 

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