With an introduction of the background of applying GPRS to railway, the deficiencies and the functions of GSM-R and the new multimedia communication technology, the author proposes the scheme of the application of GPRS technology based on GSM-R, and a solution of carrying services to improve the GSM-R system.
The loading and securing scheme for the DG1025/18Z 117 boiler cylinder transported by the D 25 high capacity flat car is described. The stability of the loading structure is analyzed,and finite element analysis is done for the main load bearing parts.
The characteristics of nonlinearity of the suspension system in maglev train are analyzed. Starting from improvement of the anti-interference and loading capacity for the suspension system,a status feedback controller is designed by use of nonlinear H∞control theory.
Via the structure analysis,prototype manufacturing,practical loading test and static,dynamic strength test on the load carrying frames of D_(26B) type heavy-duty wagons,the scheme of the load-carrying frame is verified,and the technical progress of heavy-duty wagons is promoted.
Reported QSRR models are critically reviewed, bearing in mind their statistical predictability physical meaning.
Synthesis and evaluation of five different N,N-disubstituted aminoethanol ester derivatives of indomethacin bearing structural resemblance to the aminoethanol ester class of anticholinergics are reported herein.
Influence of the Mechanical Seals on the Dynamic Performance of Rotor-Bearing Systems
In this paper, to consider the effects of mechanical seals, a lumped-mass model and the transfer matrix method are used to establish the equations for the dynamics performance of rotor-bearing system.
To check the response of the rotor-bearing system under unbalance motivation, the Gauss method is used to calculate the dynamic response of the constrained vibration.