Negative edge

In this module, the statements in the first always statement are controlled by the positive edge of Clk, while the statements in the second always statement are controlled by the negative edge of Clk. 

II Negative edge-triggered, static D-type FF. endmodule... 

Negative edge-triggered, positive asynchronous // preset, positive asynchronous clear,... 

II Negative edge-triggered, negative asynchronous // clear, positive asynchronous preset, static // D-type FF. endmodule... 

II Negative edge-triggered, data select front end,... 

Fig. 5.4.6. (a) Positive and (b) negative edge dislocations of unit strength. 

The non-conservative motion (or climb ) of a dislocation is indicated in a series of illustrations in Fig. 3.39 for positive and negative edge dislocations. 

The motion of an edge dislocation is restricted to one plane only-the glide (or slip) plane. Both a positive and a negative edge dislocation can only exit a glide plane by means of the climb process, as illustrated in Fig. 3.39. For climb to happen in a positive dislocation (the upper illustrations in Fig. 3.39), vacancies, arriving by diffusion, must occur adjacent to the dislocation line by replacing one... 

One of the most interesting observations during the measurements of the time dependence of the differential capacitance in saturated adenine solutions was the appearance of damped capacitance oscillations [67]. The oscillations appear after the potential jump near the negative edge of the capacitance pit. The oscillations were observed with adenine, but not with thymine. 

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