A new process of electrodepositing of bright Copper-Tin alloy from noncyanide bath is proposed in this paper. The bath composition and operating conditions are Na3C6H5O7· 2H2O 90～120,Na2EDTA· 2H2O 25～35,stabilizer WDZ-943 10～15,CuSO4·5H2O 20～40,SnCl2· 2H2O 20～40 g· L-1;
It was shown by the results of tests that under the operating conditions that ρ(MLSS)was 4.23, 4.09 and 3.70 g/L respectively, the optimum corresponding operating air-water ratios of MBR were 35∶1, 25∶1 and 17∶1;
For the purpose of suiting the railway transportation and development needs and improving the weak links in the main track equipments so as to raise the train operation speed and efficiency as well as to improve the operating conditions, a new type of switch is developed, Its theoretical lead and actual front-part length are kept in conformity with the current standards and new construction is adopted also.
Based on the operating conditions of Shanghai Urban Rail Line 6, an analysis was made statically and dynamically of the impact of different sleeper arrangements on steel track, track bed, and subgrade, and of the track stability. A standard suitable for Shanghai Urban Rail Line 6 was recommended.
Identification of the optimal operating conditions and evaluation of their robustness are critical issues for industrial processes.
Research results indicate that the electric supercharger can respond rapidly with the great flux, and it is independent of the operating conditions of a diesel engine.
The two-stage turbocharging system in this paper has much higher efficiency under most operating conditions if the pressure ratio assignment is 1:1.
The kinetic model is validated by an industrial unit with sets of plant data under different operating conditions and simulation results show a good agreement between the model predictions and the plant observations.
The phosphorus uptake profile was determined under different operating conditions.