Wobbles

Special configurations to reduce probe wobble and sensitivity to geometry changes and to allow inspection nearby both sides of a support plate in one pass... 

Even at 0 K, molecules do not stand still. Quantum mechanically, this unexpected behavior can be explained by the existence of a so-called zero-point energy. Therefore, simplifying a molecule by thinking of it as a collection of balls and springs which mediate the forces acting between the atoms is not totally unrealistic, because one can easily imagine how such a mechanical model wobbles aroimd, once activated by an initial force. Consequently, the movement of each atom influences the motion of every other atom within the molecule, resulting in a com-... 

Wagner and DUlont have described a low-shear viscometer in which the inside diameter of the outer, stationary cylinder is 30 mm and the outside diameter of the inner, rotating cylinder is 28 mm the rotor is driven by an electromagnet. The device operates at 135°C and was found to be free of wobble and turbulence for shear rates between 3 and 8 sec V The conversion of Eq. (2.7) to Eq. (2.9) shows that F/A = (i7)(dv/dr) (instrument constant) for these instruments Evaluate the instrument constant for this viscometer. 

Fig. 8. Non-Watson-Crick base pairs occurring in double-stranded RNA where — represents the site of attachment to the sugar (a) A—U reverse-Watson-Crick (b) G—C reverse-Watson-Crick (c) A—U Hoogsteen (d) A—U reverse-Hoogsteen (e) G—U wobble and (f) G—U reverse-wobble.

Unpredictable. Disks and plates tend to wobble, while fuller bluff bodies tend to rotate. 

Figure 14a. Although our values are not in quantitative agreement with the experimental values (see Ref. 50 for a discussion), they faithfully reproduce the well-known observation that the disorder increases from the tops of the chains toward the middle of the bilayer, with a more pronounced increase in the last few carbons of the chain. The. S cd represent different types of disorder, including chain conformational defects and whole molecule wobbling [67].

W.O., abbrev, (weiter oben) above, wob, pret. (of weben) wove. wobbeliL, v.i. wobble, wobei, adv. whereby, whereat. 

Hj Working Fluid/ Wobble Plate Drive 2.7-3 2-2.5 30-35. 01. 15. 22 Stirling Thermal Motors... 

The condition called wobble exists if the bit centerline does not rotate exactly parallel to and on the hole centerline so the bit is tilted. 

Washouts, rugosity, and drillstring wobbling (or vibration) will affect the LWD density readings. However, the LWD density data are generally suitable for formation evaluation. 

With the exception of piston-type pumps, all positive-displacement pumps have one or more passing frequencies generated by the gears, lobes, vanes, or wobble-plates... 

Positive-displacement pumps can be divided into two major types rotary and reciprocating. All rotary pumps use some form of rotating element, such as gears, vanes, or lobes to increase the discharge pressure. Reciprocating pumps use pistons or wobble plates to increase the pressure. 

Indications of misalignment in rotating machinery are shaft wobbling, excessive vibration (in both radial and axial directions), excessive bearing temperature (even if adequate lubrication is present), noise, bearing wear pattern, and coupling wear. 

Each weight causes a centrifugal force, which results in a rocking motion or rotor wobble. This condition can be simulated by placing a pencil on a table, then at one end pushing the side of the pencil with one finger. At the same time, push in the opposite direction at the other end. The pencil will tend to rotate end-over-end. This end-over-end action causes two imbalance orbits, both 180° out of-phase, resulting in a wobble motion. 

Visualize a rotor that has only one imbalance in a single plane. Also, visualize that the plane is not at the rotor s center of gravity, but is off to one side. Although there is no other source of couple, this force to one side of the rotor not only causes translation (parallel motion due to pure static imbalance), but also causes the rotor to rotate or wobble end-over-end as from a couple. In other words, such a force would create a combination of both static and couple imbalance. This again is dynamic imbalance. 

A seal that is wobbling on the shaft can also cause wear on the drive pins. Erratic wear on the face contact causes poor seal performance. 

But Jell-O, which sells or serves over a million wobbly treats in thirty-three flavors every day, wants nothing to do with the shot. 

Fig. 18-2 Orbital parameters that control the seasonal and annual receipt of radiation at the Earth s surface. The Earth s rotational axis tilts and wobbles as shown. The eccentricity of the orbit is dp — d )/ (dp + da) which is zero for a circle but for the Earth s orbit is sometimes as large as 0.06. (After Hartmann (1994, p. 303) and Turekian (1996, p. 80).)...

There may be no detectable effect because of the degeneracy of the code. This would be more likely if the changed base in the mRNA molecule were to be at the third nucleotide of a codon such mutations are often referred to as silent mutations. Because of wobble, the translation of a codon is least sensitive to a change at the third position. 

In practice, RDEs with disk speeds between 1 and 170 rps (or 60 to 10,000 rpm) are used. According to Eq. (4.38), in aqueous solutions this speed range corresponds to thicknesses 5 between approximately 60 and 4.5 pm. Whirling liquid flow and wobble of the rapidly spinning electrode cause considerable complications at higher speeds. 

The bed wobbled as Mai sat up and swung her feet to the floor. I ll make us all a posset. There s some ale still in the jug, and the fire s well enough. She pulled her cap tight down about her ears, put on her shawl, and pushed her feet into her shoes, for even with the fire still alive it was very chill. I kept my shoulders well under... 

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