The Boundary Element Tearing and Interconnecting (BETI) methods have recently been introduced as boundary element counterparts of the well–established Finite Element Tearing and Interconnecting (FETI) methods. In this paper we present inexact data–sparse versions of the BETI methods which avoid the elimination of the primal unknowns and dense matrices. However, instead of symmetric and positive...

A woman aged 33 was admitted to the Unit on February 17, 1957. She had been referred by Mr. W. E. Heath from the Kent County Ophthalmic and Aural Hospital, Maidstone, where she had attended early in 1955 and again in July, 1956. Her complaint was of a swelling in the right lacrimal region which had slowly increased in size since her first attendance in 1955; recently there had been epiphora of ...

BACKGROUND Transluminal balloon tearing of the membrane in a thin discrete subaortic stenosis is an alternative to membrane surgical resection. However, the long-term outcome of patients with isolated thin discrete subaortic stenosis treated by transluminal balloon tearing remains unknown. METHODS AND RESULTS This 25-year study describes findings from 76 patients with isolated thin discrete s...

Recent observations of magnetic fluctuation activity in the Mega Ampere Spherical Tokamak (MAST) reveal the presence of plasmas with bands of both low and high frequency magnetic fluctuations. Such plasmas exhibit a spectrum of low frequency modes with adjacent toroidal mode numbers, for which the measured frequency is near the Doppler shifted rotation frequency of the plasma. These are thought...

BACKGROUND To compare the multidetector computed tomography (MDCT) arthrography (CTa) and magnetic resonance (MR) arthrography (MRa) findings with surgical findings in patients with femoroacetabular impingement (FAI) and to evaluate the diagnostic performance of these methods. MATERIAL/METHODS Labral pathology and articular cartilage were prospectively evaluated with MRa and CTa in 14 hips of...

Deep drawing is a forming process widely used in aerospace, military, automotive, and various industries. One of the essential useful parameters quality deep-drawn products blank holder force (BHF). By controlling BHF during process, formability can be improved it reduce energy. Tearing one most common crucial defects this due to high radial stress cup’s wall, resulting many limitations field. ...