The Fresnel distance and depth of field are derived from these solutions but are generally approximated. This is particularly true for the depth of field, in the case of focused transducers, where the expression from literature proves to be imprecise. If one takes a pulsed excitation into ...
专利附图：摘要：A detector 1 for calculating a depth of a buried conductor 25 comprises a plurality of antennas B, M T for detecting an electromagnetic field radiated by the conductor 25 and means for calculating the depth of said conductor 25 based on the field ...
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Scour coefficients in the formula are obtained from the in-site field data. The depth of scour pit downstream of the Three Gorges Dam is predicted using the proposed formula. The results are consistent with the experimental data by various model tests.doi:10.1080/00221680509500389...
I am subracting start times (date/time) from end times (date/time) to obtain duration. 1) Any thoughts as to why the rows I've highlighted in red in the...
Influence of Metal Shield Materials on Electromagnetic Field and Losses in End Region of Synchronous Condenser A synchronous condenser (SC) used in Ultra High Voltage Direct Current (UHVDC) system often operates under over- and under-excitation conditions, which can......
For all beam energies, the two-parameter model characterizes the absolute phantom scatter as a function of depth and field size, while, also for all beam energies, the six-parameter Gaussian model characterizes the relative phantom scatter at a single depth of 10 cm. For small field sizes, ...
acalculated ladder depth,taking into account ladder depth pendulum and trunnion depth correction measurement 故意的梯子深度,考虑到梯子深度摆锤和耳轴深度更正测量[translate] ahe sometimes by 他有时[translate] aconversion from htm to binary fauked,please try the update again 转换从htm到双再fauked,取...
BMis the magnetic field at the second antenna; and BTis the magnetic field at the third antenna and the depth d of said conductor below the first antenna may be calculated using the relationship: d=2s(1-R)2R-1 ...
The results show that linear methods can provide reasonably accurate predictions of wave-induced velocities both at depth and near the free surface. In particular, predictions obtained using coordinate stretching and modified stretching methods as well as the new superposition method are in close ...