Combined Correction

Kc is the combination correction factor if a rupture disc is installed upstream of the SRV (if there is no rupture disc, Kc = 1). 

Kc Combination correction factor for a valve installed in combination with a bursting disc. If no disc is installed, take Kc= Ufa disc is installed but the combination correction factor is not known, take Kc = 0.9 —... 

J/2) from the CH2 protons and the other at 5-94 Hz from the CH proton whose resonance in a normal spectrum is a 1 2 1 triplet with outer components which precess at twice the rate of the components of the CH2 doublet. (148) In fact each spin-echo normally contains a number of different frequency components which can be separated by electronic filtration or by Fourier transformation to yield a set of J-spectra which can then be conveniently displayed in a two-dimensional plot. In practice the second approach is normally used, and thus the set of spin-echoes is subjected to a double Fourier transformation according to equation (2) in which cafe must be taken to combine correctly the real and imaginary transforms. (26)... 

Combined Corrections. — Since the correction for aqueous tension is made by subtracting from the observed pressure the aqueous tension in millimeters of mercury (found in the Table in 6), formula (6) becomes ... 

It is convenient to combine the pressure dependence of the two correction factors. Defining Fcent = sc,cent sc,cent. the pressure dependence of the combined correction F is given by [29]... 

For preliminary estimates, the coefficient Kj can be taken as 0.975 for a relief valve and 0.62 for a bursting disk. The back-pressure correction factor, Ky, can initially be assumed to be 1.0 for critical flow. The combination correction factor, K, is used when a rupture disk is used upstream of the relief valve (see next section), in which case it is 0.9. If no rupture disk is used, then is 1.0. For vessels designed in accordance with AS ME BPV Code Sec. VIII, Pj = 1.1 times the maximum allowable working pressure. 

The units combine correctly to give the specific heat in J/g-K. The answer is correctly given to two significant figures. 

Although the errors introduced by the atomic-sphere approximation are unimportant for many applications, e.g. self-consistency procedures, there are cases where energy bands of high accuracy are needed, and where one should include the perturbation (6.2) in some form. Below, we derive an expression which accounts to first order for the differences between the sphere, atomic or muffin tin, and the atomic polyhedron, re-establishes the correct kinetic energy in the region between the sphere and the polyhedron, and corrects for the neglect of higher partial waves. The extra terms added to the LMTO matrices which accomplish these corrections are called the combined correction terms [6.2]. 

With the combined correction term included in an LMTO calculation, one... 

The basic output from STR is the canonical structure constants used in CANON and LMTO to calculate band structures. In addition, STR produces a file with real and reciprocal space vectors which is used by the combined correction term programme COR. This file may also be read by STR next time the same crystal structure is encountered, thus saving the time used to generate these vectors. 

Combined Corrections—If the overall distillation range of the sample does not exceed 2°C, a combined correction for thermometer inaccuracy and barometric pressure may be made on the basis of the difference between the... 

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