Positive climb

The positive climb process requires long-range transport of matter and consumes vacancies. Continuous deformation will hence lead to a depletion of vacancies and eventually limit the effectiveness of the mechanism. Roitsch et al. [50] showed that besides the metadislocation loops, a second set of dislocations is involved in the deformation mechanism, which compensates the depletion of vacancies. The second set of dislocations consists of loops on (0 01) habit planes with [010] Burgers vectors [51]. These dislocations move by pure negative climb, that is, the expansion of the loops is connected to a production of vacancies, and hence the systems acts as a vacancy source. The interaction of the two loop systems in the form of vacancy exchange ensures continuous operation of the deformation mechanism. 

It can be seen from Fig. 15(a) that the atom moves in a stick-slip way. In forward motion, for example, it is a stick phase from A to B during which the atom stays in a metastable state with little change in position as the support travels forward. Meanwhile, the lateral force gradually climbs up in the same period, leading to an accumulation of elastic energy, as illustrated in Fig. 15(fo). When reaching the point B where a saddle-node bifurcation appears, the metastable... 

Symptoms of thyrotoxicosis include nervousness, anxiety, palpitations, emotional lability, easy fatigability, heat intolerance, loss of weight concurrent with an increased appetite, increased frequency of bowel movements, proximal muscle weakness (noted on climbing stairs or arising from a sitting position), and scanty or irregular menses in women. 

The x axis is again an asymptote and the line crosses the y axis at 1. This time the curve climbs to infinity as x becomes more negative. This is because — x is now becoming more positive. The curve is simply a mirror image, around the y axis, of the positive exponential curve seen above. ... 

Even if there are already many suitable nest sites, a bird box may encourage a normally shy species of bird to stay in your yard. Bird boxes can be made of untreated wood or "woodcrete" (a concrete/sawdust composition). The latter version is useful if your garden has predatory squirrels or even woodpeckers with a taste for young birds. All bird boxes should be positioned so that you can access them easily to clean them out in fall, which is important. Put your bird box on a sheltered wall or tree trunk, well away from predators, rain, and direct sunlight. Cats can climb up and reach into boxes from all sorts of unlikely angles, as can gray squirrels, so position the box carefully. 

Additionally, some departments require candidates to climb a ladder, lift a pneumatic spreader to several different positions, and even to swim a certain distance or tread water for a certain time (this is most often found in areas with access to open waterways or where swimming pools are common). 

This means that the flow of a current through an external load makes the potential of the electron-sink electrode climb in the positive direction (Fig. 7.182). 

Thus, to drive a current through the external circuit, the potential of the electron sink has to become more positive and thal of the electron source more negative (Fig. 7.182). But under zero-current, or equilibrium, conditions, the electrode that tends to be a sink is negative with respect to the electrode that tends to be a source. This means that in the course of driving a current, the potentials of the two electrodes climb toward each other the cell potential decreases with cell current in a self-driving cell. 

This is a type of dislocalion motion, differing fundamentally front slip, associated with the edge components of dislocations. In climb, an edge dislocalion moves in a direction perpendicular to iis slip plane as atoms are either added lo or taken away from the extra plane of the dislocation. The motion of atoms to and from the dislocalion is accomplished by vacancy movements. If an atom in the plane next to the edge jumps out of its position and attaches itself to the extra plane, as indicated in the... 

It never occurred to her to climb the bar hierarchy. When Craig offered her a management position, traffic politely knocked it back. She didn t want the responsibility. 

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