Afferent loop syndrome caused by an impacted enterolith is very rare, and endoscopic removal of the enterolith may be difficult if a stricture is present or the normal anatomy has been altered. Electrohydraulic lithotripsy is commonly used for endoscopic fragmentation of biliary and pancreatic duct stones. A 64-year-old man who had undergone subtotal gastrectomy and gastrojejunostomy presented ...

This paper presents high performance control of electrohydraulic actuators for generating near periodic time varying trajectories. Such type of trajectories can be found in many industrial applications, particularly those involving master-slave type electronic cam-follower motion generation. The control algorithm includes a robust feedback control for disturbance rejection, a repetitive control...

There are a variety of factors affecting steering performance on off-road vehicles, including vehicle dynamics and soil stiffness. It is essential to understand the steering dynamics for designing a reasonable electrohydraulic (E/H) steering control system for wheel-type tractor. A computer-controlled E/H steering simulator, consisting of a steering actuator and a steering load simulator, is an...

This paper presents the theoretical and experimental researches performed by the authors in order to design a digital control system for electrohydraulic servomotors. The system contains a digital control module and two position servomechanisms. A mathematical approach was developed for obtaining a mathematical model describing the whole control system. The dynamic performance of this system wa...

In a patient with a mid-common bile duct stone, the traction wires of a mechanical lithotriptor snapped, resulting in lithotriptor basket impaction. Simultaneous occurrence of these two potential complications of endoscopic stone extraction is very rarely reported. Extracorporeal shock wave lithotripsy failed to fragment the stone entrapped within the impacted basket. Endoscopic intracorporeal ...

Current economic and environmental constraints are pushing OEMs and system integrators to design high performance systems with tighter development time requirements. They naturally resort to simulations to avoid the time and cost of early prototyping. This establishes a new “language” of virtual machines and components that hydraulic, electrohydraulic and control component manufacturers also ne...

Modern methods of recycling scrap tungsten pseudo-alloys are considered. The improvement the method electroerosive dispersion conductive granules by strengthening its electrohydraulic action for effective disintegration into micro-components is discussed.