Generalized Open-loop Response Control of H_2/N_2 Ratio of Synthetic Ammonia;

The open-loop step driving theory and method of AC servo motor were studied.

In combination with open-loop and outer-loop power control,the inner-loop power control under some conditions such as different channel environments and different control parameters has been simulated.

The techniques for aromatics saturation and ring-opening of cycloalkanes related to hydropyrolysis of aromatics into steamcracker feeds were reviewed and the feasibility of comprehensive utilization of surplus aromatics by this route was outlined.

The effect of methanol, formic acid and aqueous ammonia as nucleophiles on the ring cleavage of 1 was investigated.

The overall yield of nitration and ring cleavage was 19.

Its hydrogenation activity in aromatics saturation and ring opening activity were investigated.

In this method,the basic entities in a drawing are classified into open loop entities and closed loop entities,the line style can be identified automatically,and the width value of the line can be changed easily.

This paper introduces high-speed DSP controller TM320F243 to modulate space vector pulse width with open loop control scheme, eventually successfully implementing the accurate speed and position control of the servo system.

This paper sorts tracker controller methodologies in utilization of solar energy into close loop, open loop, and hybrid.

Activation of calix [6] arene in the ring-opening polymerization of ε-caprolactone catalyzed by rare earth aryloxide catalysts in low temperature.;

Effect of initiators on enzyme-catalyzed ring-opening polymerization of ε-caprolactone;

Viscosity model and its application for ring-opening polymerization of cyclic siloxane in presence of water;

Potassium maleate-containing ionomers were prepared by ring-opening reaction of epoxidized styrene-butadiene-styrene block copolymer(SBS).

Epoxidized styrene-butadiene-styrene triblock copolymer(ESBS) can react with potassium hydrogen maleate by ring-opening reaction in the presence of phase transfer catalyst and ring-opening catalyst.

Sodium sulfonated SBS ionomer was made from epoxidized styrene-butadienestyrene triblock copolymer(ESBS) and NaHSO_3 by ring-opening reaction in the presence of phase transfer catalyst,ring-opening catalyst and pH value regulator.