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Exitance definition

Photoconductivity is one of the most informative phenomena in semiconductor physics. The light beam enables us to exite definite energetic levels strongly and obtain information about photogeneration, recombination and transport processes of the charge carriers. The history of photoconductivity shows the every essential step in research and application has been linked with the appearance of new photosensitive materials with specific physico-chemical properties. [Pg.5]

The cell is the basis of all electrolysis. The anode admits current into the electrolyte and the cathode serves as a means of exit for the electrical current. The electrical flow provides a definition for electrolysis the flow of current from the anode through the electrolyte and out of the cell through the cathode with ensuing decomposition of the electrolyte, with products being formed at the electrodes. [Pg.521]

The inherent restrictions are usually the result of definitions and take the form of identities. For example, the concept of the equihbrium stage involves the inherent restrictions that T = and P " = where the superscripts V and L refer to the equihbrium exit streams. [Pg.1260]

The characteristics of the pump relate the applied pressure on the cake to the flowrate at the exit face of the filter medium. The cake resistance determines the pressure drop. During filtration, liquid flows through the porous filter cake in the direction of decreasing hydraulic pressure gradient. The porosity (e) is at a minimum at the point of contact between the cake and filter plate (i.e., where x = 0) and at a maximum at the cake surface (x = L) where sludge enters. A schematic definition of this system is illustrated in Figure 2. [Pg.160]

Many emulsion polymerizations can be described by so-called zero-one kinetics. These systems are characterized by particle sizes that are sufficiently small dial entry of a radical into a particle already containing a propagating radical always causes instantaneous termination. Thus, a particle may contain either zero or one propagating radical. The value of n will usually be less than 0.4. In these systems, radical-radical termination is by definition not rate determining. Rates of polymerization are determined by the rates or particle entry and exit rather than by rates of initiation and termination. The main mechanism for exit is thought to be chain transfer to monomer. It follows that radical-radical termination, when it occurs in the particle phase, will usually be between a short species (one that lias just entered) and a long species. [Pg.250]

DEFINITION An interconnection of statements such that each entry point leads from an exit point and each exit point leads to some entry point is a FLOW DIAGRAM. [Pg.21]

DEFINITION A single entry single exit subgraph of a graph G is a single entry subgraph G with a single exit node d such that ... [Pg.115]

DEFINITION A subgraph G of G is zero exit or closed if no arrow leaves G it is zero entry if no arrows enter G. ... [Pg.115]

DEFINITION Let G be a single entry single exit subgraph with entry node e and... [Pg.120]

To reverse Lemma 4.10, we need a few additional. implications of our definitions. First, we have a result true for any single entry single exit graph G. ... [Pg.125]

DEFINITION For nodes n and in in a single entry single exit graph, let... [Pg.126]

The example also gives selected parts of the computation for input n = 3 and k = 2. We enter instruction 3 with the IF test positive. Then we proceed as if a copy of the procedure body for FACT and the END statement were inserted just before instruction 4 of the main program. Notice that our definitions require a procedure definition to be, in effect, a single entry single exit subscheme so there is no ambiguity about where we enter the procedure or where we leave or where we go next, even if the main program were not a WHILE program (i.e., well-structured). [Pg.255]

Procedure definitions are all single entry single exit subgraphs ... [Pg.259]

How then, can one recover some quantity that scales with the local charge on the metal atoms if their valence electrons are inherently delocalized Beyond the asymmetric lineshape of the metal 2p3/2 peak, there is also a distinct satellite structure seen in the spectra for CoP and elemental Co. From reflection electron energy loss spectroscopy (REELS), we have determined that this satellite structure originates from plasmon loss events (instead of a two-core-hole final state effect as previously thought [67,68]) in which exiting photoelectrons lose some of their energy to valence electrons of atoms near the surface of the solid [58]. The intensity of these satellite peaks (relative to the main peak) is weaker in CoP than in elemental Co. This implies that the Co atoms have fewer valence electrons in CoP than in elemental Co, that is, they are definitely cationic, notwithstanding the lack of a BE shift. For the other compounds in the MP (M = Cr, Mn, Fe) series, the satellite structure is probably too weak to be observed, but solid solutions Coi -xMxl> and CoAs i yPv do show this feature (vide infra) [60,61]. [Pg.116]

Since (—mcii4.r) is equal to the fuel supply rate (wch4) by definition for a stoichiometric reaction, then the exit mass flow rate is... [Pg.69]


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See also in sourсe #XX -- [ Pg.29 , Pg.36 ]




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