White knight

A White Knight, W, may be selected and constrained to lie before C and therefore s, so as to ensure that the clobbering effect of C will not be felt. 

The time required to evaluate the truth criterion depends on the complexity of the procedures for determining clobberers and white knights. The... 

Selection of Plan Modification Operations The White Knight for... 

Step 2. The qualitative value of the desired change is propagated through the steady-state model equations of the plant equipment, following the constraint propagation procedure of Steele (1980). Manipulations that cause the desired change and that are feasible are identified as White Knights and are constrained to lie before the situation of interest s, in accordance with the truth criterion. 

The complete algorithm for the identification of White Knights is as follows ... 

Input Plant flowsheet in final state, F constraint being clobbered, q. Output White Knight, W for the constraint q. begin for q do begin... 

Theorem 8. The algorithm WHITE-KNIGHT will detect every manipulation, that will possibly avoid a quantitative constraint violation, as a White Knight. 

Quantitative constrains (a) are transformed into temporal orderings of primitive operations (e.g., demotion of Clobberers) or (b) dictate the introduction of new operators (e.g.. White Knights) to recover the feasibility of plans. 

In Section III,C we argued that one should identify the worst-case scenario for the violation of Constraint-1 and take action to ensure that a White Knight operation is carried out before any offending operation (i.e., Clobberer), in order to negate its impact (i.e., violation of mixing constraint). The worst-case scenario occurs when the plant has the following two sets of valves OPEN at the same time ... 

It should be obvious that there is no guarantee that a suitable White Knight can be found to counter at least one of the Clobberers. In these instances a modification must be made to the process flowsheets so as to introduce structures that will serve as White Knights. In this section we... 

It is often overlooked how much the progress of women relied on sympathetic men, and the cause of women in pharmacy was no exception.12 The white knight in this case was Robert Hampson.13 In 1872, Hampson was elected to the Council of the Pharmaceutical Society. In the 1860s, he had been a prominent member of the rival United Chemists and Druggists Society. However, following the passage of the Pharmaceutical Act, he redirected his radicalism, especially women s rights, to the activities of the Pharmaceutical Society. He was joined in his crusade by other, equally radical, new members of the Council. 

She forced the smile a notch or two wider. SierZuanbattista and I never properly thanked you for all you did. Tmly you were the white knight to the rescue So romantic So poetic So nice that you hit my son-in-law with a sword. 

White Knight 100 - acetylene production co-product derived from carbide lime... 

Figure 2.18. SEM micrograph of White Knight 100 calcium hydroxide particle. Courtesy ofReBase, Barrie, Canada.

U.S. defense contractor, when Marietta fought back by launching a takeover of Bendix. When United Technologies joined Marietta s countermove, Agee turned to Hennessey as a white knight and sold Bendix to Allied Corporation. 

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