Due to their compliant structure, industrial robots without precision-enhancing measures are only a limited extent suitable for machining applications. Apart from structural, thermal and bearing deformations, the main cause structure is backlash of transmission drives. This paper proposes method improve trajectory tracking accuracy by using secondary encoders applying feedback flatness based fe...

This work presents joint subcarrier, power and bit allocation schemes for multi-user OFDM based overlay cognitive radio under constraints on primary user throughput loss and total secondary user transmitted power. Closed form for expressions for the optimal power and bit allocations are initially derived. Subsequently, optimal and suboptimal algorithms to realise the joint subcarrier, power and...

Septic arthritis of the sternoclavicular joint (SCJ) is a rare condition accounting for 0.5% of bone and joint infections. The majority of cases require joint resection and advancement flaps to provide coverage to the resulting wound defect. However, in the setting of an infected wound space, surgeons are often inclined to allow wound healing by secondary intention. Negative pressure wound ther...

Hypertrophic osteoarthropathy is a pathology characterized by digital clubbing of the hands and feet, extremity enlargement secondary to bone and periarticular tissue proliferation, joint pain and edema, bilateral eyelid ptosis, leonine face and skin thickness.1,2 It is classified as either primary (pachydermoperiostosis) or secondary. The primary form, or idiopathic, is considered rare, corres...

Tarsometatarsal (TMT) arthritis is characterized by instability and pain in the foot. The commonest cause is post-traumatic arthritis. A Lisfranc injury involves the articulation between the medial cuneiform and the base of the second metatarsal, which is considered a keystone to midfoot integrity. Neglected or undertreated injury to the Lisfranc joint complex leads to secondary arthritis and s...

INTRODUCTION Fungal joint infection can lead to serious consequences for those affected. It can often be a delayed diagnosis due to initial negative organism growth or lack of clinician awareness. Treatment should be early and aggressive to prevent patient morbidity and mortality. CASE REPORT We present a case of staphylococcal septic arthritis of the native hip joint with secondary superinfe...

CONTEXT Femoroacetabular impingement (FAI) is a common cause of intra-articular hip pathology and secondary osteoarthritis. It affects athletes at a young age as they push their bodies beyond the diminished physiologic limits imposed by the altered joint morphology. Understanding the cause of this condition and its assessment in athletes is important. EVIDENCE ACQUISITION The scientific liter...