In this article, taking the hydraulic system of mining hydraulic excavator boom and stick as the plant, an adaptive robust impedance controller based on an extended state observer and backstepping ...

TotalEnergies remains operator of the assets The portfolio consists of wind, solar and hydroelectric assets in operation PARIS -- (BUSINESS WIRE)-- In line with its renewables business model ...

Zach Johnson joins Golf Today to discuss the John Deere Classic, if he feels old after turning 50, the future of his golf career, the PGA Tour FedExCup standings, Keegan Bradley's U.S. Ryder Cup ...

With only five weeks remaining before the start of the FedExCup Playoffs, the John Deere Classic serves as a critical opportunity for players hovering around the cutoff bubble for the top 70 ...

For slightly larger tasks, the CASE CX19D mini excavator, with an operating weight starting at 4,145 lbs (1,880 kg), delivers more power and efficiency in a compact footprint. Available with a canopy ...

The 1,102-lb. Tramac SC-50 hydraulic breaker has an impact energy of 1,500-ft.-lbs. with impact frequencies ranging from 680 to 1,140 bpm. Operating pressure of 1,881 psi ...

In the existing electric excavators, the energy efficiency of the hydraulic system is less than 30% due to a large amount of throttling loss and waste of potential energy. In order to improve ...