CONTROL OF RIPPLE ELIMINATORS TO IMPROVE THE POWER QUALITY OF DC SYSTEMS AND REDUCE THE USAGE OF ELECTROLYTIC CAPACITORS

Control of Ripple Eliminators to Improve the Power Quality of DC Systems and Reduce the Usage of Electrolytic Capacitors

The problem of voltage/current ripples has become a primary power quality issue for dc systems, which could seriously degrade the performance on both the source side and the load side and lead to reliability concerns.In this paper, a single-phase Pulse width modulation-controlled rectifier is taken as an example to investigate how active control st

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Conference Review: The Later Prehistoric Finds Group Conference Crafting Identities: Making and Using Objects in the Bronze and Iron Ages

The one-day conference was held on Saturday 26th October 2019 in Edinburgh at the National Museum of Scotland.The focus was on the importance of understanding craft processes as a means of interpreting the expression of identity in prehistory.This was explored in Foot papers that focussed on crafts and craftworkers who worked in metals, wood, glass

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Open tibia plateau fracture with intra-osseous dislocation of the patella and quadriceps tendon rupture: a case report

Abstract Background Both tibial plateau fractures and extensor apparatus injuries are serious injuries to the knee joint that generally do not occur in the same patient.We report a rare case of open tibial plateau fracture combined with quadriceps tendon rupture and complete displacement of the patella into the tibial plateau fracture.Case presenta

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