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Operator manifolds complete

Here h is a complete excitation operator manifold arranged as a column vector and li is the transposed row vector. Eq. (58) can also be derived from Eq. (56) using the identity (Simons, 1976)... [Pg.212]

A possible way to construct a bctsis for the Hilbert spaw e Y may also be the definition of operator sets A and B, such that the set of states A,B) A A,B B span the Hilbert space Y. In the context of traditional one- and two-particle propagators of many-body theory, such complete operator manifolds have been found [23] and used for deriving approximation schemes (see e. g. [24] and references cited therein). In the present context, however, such a construction seems difficult because of the complicated nature of the extended states A,B). It is certainly an interesting open question whether a convenient construction can be found. [Pg.74]

The above results having to do with completeness of operator manifolds permit us to write a resolution of the identity as... [Pg.126]

A Gllppard air manifold complete with six electrically operated valves. Is bolted to the central pillar and supplies air to the systems which rotate with the carousel. Several of the valves are fitted with flow restrictors to allow speed control of the Items they supply e.g. feed cylinders. These are of particular Importance in the back off feed system, which adjusts the load on the drill. [Pg.144]

Dalgaard, E. (1979). Expansion and completeness theorems for operator manifolds. Int. J. Quantum Chem., 15, 169-180. [Pg.284]

Separation Modules Incorporating a separation module in the flow injection manifold allows separations, such as dialysis, gaseous diffusion, and liquid-liquid extraction, to be included in a flow injection analysis. Such separations are never complete, but are reproducible if the operating conditions are carefully controlled. [Pg.653]

So far everything is exact. A complete manifold of excitation operators, however, means that all excited states are considered, i.e. a full Cl approach. Approximate versions of propagator methods may be generated by restricting the excitation level, i.e. tmncating h. A complete specification furthermore requires a selection of the reference, normally taken as either an HF or MCSCF wave function. [Pg.259]

Compressed airline system a facepiece or hood is connected to a filter box and hand-operated regulator valve which is provided with a safety device to prevent accidental complete closure. Full respiratory, eye and facial protection is provided by full-facepiece versions. The compressed air is supplied from a compressor through a manifold or from cylinders. [Pg.301]

Procedure II. Referring to Figure 2, one sees that A is connected directly to the high vacuum manifold as before, but in addition, it is connected with the remainder of the vessels by a parallel manifold in which there is incorporated a second breakseal, 5. This arrangement allows us to isolate bake-out vessels B, C, and D completely from vessel A during the degassing operation. [Pg.184]

There are few reported instances of the combined use of an FI manifold and a robotic station operating independently. One is a method for the automatic analysis of used oils by ICP-AES [30]. The robot is used to weigh the oil after the sample is heated, to add the volume of xylene required to obtain a 1 9 weight ratio and to mix the two. The sample thus obtained is used to fill a vial fitted in the autosampler of the FI analyser, which acts merely as a device for automatic insertion of the sample into the ICP spectrophotometer. The link between the two sub-systems [viz. the transfer of both samples and information produced in the robotic operation (dilution of each sample)] is established manually. This approach does not completely dispense with human intervention, although it has been estimated to cut manpower requirements by two-thirds. [Pg.517]

Manual methods using 1-, 3-, and 6-station manifolds are also available (Fig. 11.4). Using the manifold, up to six extractions can be completed simultaneously and multiple manifolds can be managed by a single operator. Extraction time is dependent on the amount of particulate matter in the sample. Typically drinking waters take approximately 30 min per batch for a 1-L sample. For lake and river water, it is necessary to add Filter Aid 400 in order to keep extraction time from taking hours for a 1-L sample. [Pg.288]


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See also in sourсe #XX -- [ Pg.126 , Pg.166 ]




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