Using safety assessment, you can not only find out the hidden troubles and their development direction existing in railway line system, the assessment result can also give a scientific basis to railway track division.
Combined with the problems confronted in the SDH construction in our country, the international SDH recommendations are researched from the following seven aspects: network node interface, transport network architecture, network performance, optical interface, equipment and line system, network synchronization and network management.
Basing on the limitation of loss, dispersion and nonlinearity of the transmission media of fiber on the design of high-speed SDH fiber line system, this article discusses some way to overcome the limitation of these factors.
The wind-induced dynamic response in frquency-domain is calculated with the simplified method and some important conclusions which will direct the design of long span transmission line system are obtained.
The insulation resistivity of runs of an underground pipe-line system is estimated by procedures based on numerical analysis of the actual current distribution in ground of protective current produced by its sources.
The calculation procedure make allowances for the configuration of a pipe-line system, an arbitrary arrangement of current sources, the irregularity of an insulation, and the inhomogeneity of the surrounding ground.
Analysis of the field of currents of a grounded cathodically protected pipe-line system
pinnifasciata with the use of morphometry and lateral line system structure analysis.
Taking into account the contribution of the variability of the disk + hot line system to the variability of the system as a whole, we are able to reliably estimate the orbital inclination, , and the mass of the black hole, MX=(6.7-7.6)M⊙.