The results indicate: for cyclone separator with the diameter of 305 mm, the calculated separation efficiency from Barth empirical model is in good agreement with the experimental data, and for cyclone separator with diameter of 152 mm, the Iozia & Leith empirical model can accurately calculate its separation efficiency.

By using this system, the PD of transformer windings was measured. Experimental results show that the system can effectively measure the time and the amplitude of the high-frequency (adjustable center frequency between 400～800 MHz with minimum steps of 5 MHz) and narrowband (10, 20, 40 or 80MHz) signals emitted from PD, and accurately calculate phase resolved PD patterns and statistical operators.

For converted wave stacking and trace selection of common reflection point gathering, it is required to accurately calculate the location of conversion points.

Since the overall failure of a ship hull is normally governed by buckling and plastic collapse of the deck, bottom or sometimes the side shell stiffened panels, it is of crucial importance to accurately calculate the ultimate strength of stiffened panels in deck, bottom and side shell for more advanced structure design of ship structures.

For accurate calculation of the consolidation settlement, it is suggested that the loading time of each stage should be reduced, i.e. 1 hour for clay and silty clay with a consolidation coefficient larger than 4×10~(-4)? cm~2/s, and 4 hours for clay with a consolidation coefficient in the range of 1×10~(-4)? cm~2/s ～ 4×10~(-4)?

This model can be used in the accurate calculation of wear rate of screw-nut pair and worm-worm wheel pair,and can be applied quite conveniently to tribology programming as well.

The accurate calculation and determination was thought as the base which made the good nutrition scheme of the ruminant, it was also the important basis which fixed the ruminant's supplementary fodder.

With the expanding of the scale of power system, prompt and accurate calculation of the load flow equations is more and more important for the simultaneous control of power system.

The representative water level of reservoirs deduced by the static reservoir capacity curve was used for accurate calculation of the dynamic capacity of reservoirs.

In addition, the FORTRAN calculation program of this method is compiled in this paper, by which the low cycle fatigue life of bellows expansion joints can be calculated accurately.

Heat generated in the rolling deformation zone is calculated accurately, on the basis of which new calculating model of work roll temperature is established through thermal equilibrium of strip mill and rolling stock.

Through the ultimate proven reserves forecast for the developed oil -gas accumulation zones and the estimated result of resource quality, the resources conversion rate can be calculated accurately, and it can predict the exploration potential of the analo- gous structural units.

In the paper, friction heat is calculated accurately by preparatory displacement slip friction model, computational formula of cold rolled thin plate's temperature increment is derived by means of taking plastic deformation heat and friction heat into account synthetically.

The stress relaxation characteristic of 25Cr2Mo1V and 20Cr1Mo1VNbTiB steels for the studs is analyzed, and the method with which the allowable stress is calculated correctly is introduced in detail.

In the study of maximum absorption wavelength, with the optimized geometry obtained by B3LYP/6-311G*, the visible absorption wavelength of azobenzene compounds, pyridone azo compounds, amino pyrimidine compounds and thiazole heterocyclic azo compounds are calculated by TD-DFT method and ZINDO/S method.

Incorporation of a simple method for estimating initial K-values in the present algorithm allows this algorithm to more easily and accurately calculate the composition of each phase in vapor-liquid-liquid equilibrium.

It is a key problem to accurately calculate beam spots' center of measuring the warp by using a collimated laser.

From the synthesis of the results, a general correlation has been obtained permitting to accurately calculate this transfer coefficient.

The ability to accurately calculate protonation states in the form of pKas is, therefore, desirable.

It is then shown that the characterized aberrations can be used to accurately calculate the electromagnetic field at the focus using the Stratton-Chu vector diffraction theory.

Hydrogen atom in strong magnetic field: A high accurate calculation in spheroidal coordinates

The main thrust is a more accurate calculation of transport coefficients and an investigation of their effect on profiles of the gasdynamic parameters.

A simple expression that allows accurate calculation of physicochemical properties of organic compounds like RX (R is an unbranched alkyl substituent CnH2n+1 and X is a functional group) was proposed.

As a result of testing the calculation schemes, the optimum algorithms are found and the conditions are determined under which highly accurate calculation results are attained.

It is shown that none of the approaches allows accurate calculation of the induction distribution in matter after pole magnetization.

We have tested three deconvolution algorithms so that the concentration of sugars in samples of kiwi juice can be calculated accurately.

The energy for two excitons is calculated accurately as a function of their mean distance in the case of a heavy hole mass by using an integral expansion method of molecular physics.

The results show that the excitation energies of the ground state multiplets can be calculated accurately using a small orbital set but the higher levels need larger orbital sets.

Low lying excited state energies were calculated accurately using a single co-detor wavefunction and the predicted electronic transitions were associated with the previously reported experimental UV spectrum.

Patients with high background activity showed overestimation of LVEF, however, by using a formula that was derived from the linear regression the LVEF could be calculated accurately in most cases.

In this paper, the author has improved the approximate solutions for associated Legendre's function. When these improved approximate expressions for associated Legendre's function are used in studying the frequencies of free vibrations of spherical shell, a more rigorous theory for calculations of frequencies has been suggested. On the basis of authes's rigorous theory, the theory of shallow spherical shells and spherical shells withoot bending is established. Various computations have been performed and an...

In this paper, the author has improved the approximate solutions for associated Legendre's function. When these improved approximate expressions for associated Legendre's function are used in studying the frequencies of free vibrations of spherical shell, a more rigorous theory for calculations of frequencies has been suggested. On the basis of authes's rigorous theory, the theory of shallow spherical shells and spherical shells withoot bending is established. Various computations have been performed and an approximate formula is suggested for determining the frequencies of vibrations of spherical shells.

To be able to locate the point of inception of air entrainment is of considerable significance in the design of ski-jump spillways for high dams, in that this is not only prerequisite to the theoretical analysis of jet diffusion in the air and the subsequent alleviation of erosion as the aerated jet dives to the bed, but also essential if the possible benefit of aeration in the reduction of concrete pitting is to be evaluated. Although past contributions to this problem are numerous, no method has yet been available...

To be able to locate the point of inception of air entrainment is of considerable significance in the design of ski-jump spillways for high dams, in that this is not only prerequisite to the theoretical analysis of jet diffusion in the air and the subsequent alleviation of erosion as the aerated jet dives to the bed, but also essential if the possible benefit of aeration in the reduction of concrete pitting is to be evaluated. Although past contributions to this problem are numerous, no method has yet been available to yield the correct prediction of the onset of aeration in or downstream of the curvilinear portion of the spillway which is known to take place much earlier than usual. Even for the straight portion of the spillway, calculated positions of aeration inception do not always match with the observed values (see table 1, and compare columns 4 to 7). In this paper is presented a rational and yet rather simple procedure with which one may treat the general problem of locating the position of aeration inception no matter if the spillway contains a curve or not. In the first place, the irrotational or "ambient" flow outside of the boundary layer is studied. In view of the fact that the flow over the spillway of a high dam is much smaller in extent laterally than longitudinally, an approximation similar to that used in the derivation of boundary layer equations from the Navier-Stokes equations is applied to the Euler equations. The resulting expressions indicate that the usual assumption of concentric streamlines is justifiable. The depth of flow is taken as that so calculated plus the displacement thickness of the boundary layer. Since on the plane of the complex potential, the flow over a spillway may be formulated as a simply-mixed boundaryvalue problem, Wood's exact method is applied to a numerical example with gravitational effect taken into consideration. The result of calculation indicates that both methods yield practically the same depth of flow. The inception of aeration is, as usual, assumed to occur as the boundary layer meets the free surface. Under the combined influence of gravity and boundary geometry, the flow over a dam is continuously accelerated or decelerated. In such case, boundary-layer computation by usual method is both involved and of doubtful accuracy. It is found, however, that in the case of flow over a spillway, the flow outside of the turbulent boundary layer conforms to a condition of self-preservation as proposed by Townsend. Since the Reynolds number for high dams may surely reach very high values, the turbulent boundary layer itself may be assumed to be approximately self-preserving. In short, this means that Townsend's theory of approximate self-preservation for boundary layers under the influence of longitudinal acceleration may be applied. This also means that the computation of boundary layer development may be much simplified. Based on an analysis of prototype data, it is found that in the present case involving air-entrainment inception, thickness of the boundary layer should be defined as that at which the mean velocity is within 0.1% of the velocity of flow outside the boundary layer. In the carrying out of the computations, boundary layer thickness at various sections are first estimated, then the irrotational flow outside the boundary layer is analysed by the simplified method to obtain the surface profile and the parameter "a" denoting the variation of velocity along the surface, and finally Townsend's theory of approximate self-preservation is applied to recompute the thickness of the boundary layer along the spillway. As any error made in the estimation of boundary-layer thickness has little effect on the computation of surface profile and hence on any subsequent computations, reasonably experienced computers should find it unnecessary to repeat the computations. Results of computations are found to be within 10% of the observed data obtained at two dams.