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Cut-off method

Similarly to the most robust methods of solving nonlinear equations, we start with bracketing. Assume that the interval [xy, X ] contains a single minimum point r, i.e., the function f is decreasing up to r and increasing afterwards. Then the function is said to be unimodal on the interval [xy, Xy], This property is exploited in cut-off methods, purported to reduce the length of the interval which will, however, include the minimum point in all iterations. [Pg.87]

CODATA (1 ). Observed and predicted levels above 60333 cm" are omitted since they do not change the thermodynamic functions at 6000 K. At 14000 K the BETHE-PILL cut-off method would yield a Gibbs energy function -0.1 cal mol" larger than either the present cut-off method (TEMPER, 7). [Pg.536]

By the cut-off methods of field theory (l)uplantier, 1982) (see the beginning of section 5.5) and the direct renormalization (Duplanticr, 1986bd) for the continuous chain model (Equation 201), it was obtained that... [Pg.723]

The simplest method is performing it manually. Once the total external resistance is known, the resistance unit can be built with a hand-operated mechanism to manually cut-off the external resistance. However, this method is suitable only for applications where the magnitude of torque during the pick-up period (torque at different... [Pg.87]

Where there are stray currents, the switching method described in Section 3.3.1 cannot be used. Stray current protection stations are usually installed where the pipeline has the most positive pipe/soil potential. When the stray current drainage is cut off, a too-positive stray current exit potential that is not 7/ -free is quickly established. In distant areas a too-negative stray current entry potential that is not 71 -free will be measured. The determination of the 71 -free pipe/soil potential is only possible in stray current areas when the origin of the stray current is not oper-... [Pg.101]

The convention extrusion blow moulding process may be continuous or intermittent. In the former method the extruder continuously supplies molten polymer through the annular die. In most cases the mould assembly moves relative to the die. When the mould has closed around the parison, a hot knife separates the latter from the extruder and the mould moves away for inflation, cooling and ejection of the moulding. Meanwhile the next parison will have been produced and this mould may move back to collect it or, in multi-mould systems, this would have been picked up by another mould. Alternatively in some machines the mould assembly is fixed and the required length of parison is cut off and transported to the mould by a robot arm. [Pg.269]

The part stress analysis prediction section contains failure rate models for a broad variety of parts used in electronic equipment. This method includes the effects of part quality factors and environmental factors. The tabulated values of the base failure rate are "cut off" at the design temperature and stress of the part. [Pg.89]

There are different ways of implementing the cut-off approximation. The simplest is to neglect all contributions if the distance is larger than the cut-off. This is in general not a very good method as the energy function becomes discontinuous. Derivatives of the energy function also become discontinuous, which causes problems in optimization... [Pg.43]

The advantages are that this method is relatively simple to use, permits the determination of low-frequency cut-off, indicates the frequency of the major pass-hands above cutoff, and permits the determination of pipe sizes to provide dampening. [Pg.589]

For many years the sole method of purification available was by distillation, and distilled water was universally employed for laboratory purposes. The modern water-still is usually made of glass and is heated electrically, and provision is made for interrupting the current in the event of failure of the cooling water, or of the boiler-feed supply the current is also cut off when the receiver is full. [Pg.90]

Blinks used a different method to dislodge the particles of active material from the strips cut off from the jellyfish (Blinks et al., 1978). The strips are shaken in cold seawater, and the particles dislodged are harvested by filtration on a Buchner funnel with the aid of Celite. The filter cake is first washed with 50 mM EDTA, pH 8.0, containing (NH4)2S(>4 at 75% saturation, to remove seawater. Then, the particles are cytolyzed and aequorin is extracted in situ by washing the filter cake with cold 50 mM EDTA, pH 8.0. The filtrate is clear and slightly greenish. The active matter in the filtrate is precipitated by saturation... [Pg.97]


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See also in sourсe #XX -- [ Pg.88 ]




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