Flip-flop problem

First-order approximation, 450 First-order decay, 18 First-order plot, 18, 35 First-order rate constant, 18, 31, 61 First-Older rate equation, 18, 31, 34 First-order reaaion. 18. 60 Flip-flop problem, 68 Flow methods, 177 Fluorescence quenching, 180 Flux, 134 chemical, 60 Force constant, 294 Force of interaction, intermolecular, 391... 

Computation of oral absorption (kj and elimination (E) rates is often complicated by the flip-flop of the absorption and elimination phases when they differ by less than a factor of 3. Because of these analysis problems, computation of absorption and elimination rates should not be attempted on the basis of oral dosing results alone. 

Because of these problems, different synthesis systems support different Verilog HDL subsets for synthesis. Since there is no single object in Verilog HDL that means a latch or a flip-flop, each synthesis system may provide different mechanisms to model a flip-flop or a latch. Each synthesis system therefore defines its own subset of Verilog HDL including its own modeling style. 

It is at this point that S-To-type CIDNP and S-T i-type CIDNP diverge. Because there are no flip-flop transitions in the first case, a separation of nuclear and electronic subspaces is possible and leads to a drastic simplification of the problem, since only four elements of the density matrix have to be retained. This even affords a closed-form analytical solution if some simplifying assumptions are introduced. In the second case, no such separation is possible, and numerical solutions of the stochastic Liouville equation are the only feasible procedure this subject is obviously beyond the scope of this review. 

Problem (2) is that the spin-lattice relaxation rate of C NMR, 77c. should obey (6.14) as H NMR 77,j does, if the neutral soliton diffuses whole the sample. To investigate a role of spin flip/flop diffusion through H and C Scott and Clarke have measured 77] and 77c ll samples enriched by various ratios of C to D ( ) 98 0 (2) 90 98 and (3) 20 98 [152]. They observed ... 

Prior work in retiming also includes the ASTRA [6] algorithm, which is a faster approach. It relates the problem of clock skew optimization at each flip-flop to a retiming solution for min-period retiming, and uses the Bellman Ford algorithm to derive the longest path. Recently, the authors of [7] used program derivation to... 

Thus, derived result is accumulated over the network and the resulting total evaluation is fed back to update the first-level problem. Fourthly, such outer-loop search is also preceded by the modified tabu search mentioned above. This time, however, its neighbor solution is randomly generated by either of flip/flop or swap operation for the element(s) of binary sequence that represents the available PSs and CLs as illustrated in Fig. 5. In a summary, the outline of this algorithm is shown in Fig. 6. 

A possible scenario for this problem could be the case where the output of a flip-flop could be driving the select line of a mux, and the mux output drives the data input of the flip-flop as shown in Figure 3-2. 

The minimum delay requirements are set by the hold constraints for the sequential cells. Hold time problems are caused due to short delay paths between registers which cause the data signal to propagate through two adjacent flip-flops on a single clock edge. Since path delays are the shortest under best-case operating conditions, hold time problems are maximum in these conditions. Hence, hold violations have to be fixed under these conditions. 

SUTURE does not attempt to generate a correct circuit directly, but rather builds it up incrementally by beginning with a skeletal design that will have timing violations and race conditions. The circuit is modifled in a series of local transformations to correct these problems. Only small primitive elements (i.e., logic gates, flip-flops, and latches) are used to assemble the circuit initially so that sequential transformations can later be more easily applied to reduce the overall size of the logic. The four principal steps of the synthesis method are outlined below. 

In order to meet timing, the synthesis tool will sometimes create redundant hardware to improve timing in what is called flip-flop replication. This can produce problems. 

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