background: whether coronary artery ectasia (cae) is a unique clinical finding or results from other clinical entities is still unknown. we aimed to determine the cae prevalence, investigate the relationship between cae and patients’ demographic and clinical characteristics, and assess the prognosis at follow-up in a sample of iranian population. methods: t otally, 10057 patients who underwent ...

vessel extraction is a critical task in clinical practice. in this paper, we propose a new approach for vessel extraction using an active contour model by defining a novel vesselness‑based term, based on accurate analysis of the vessel structure in the image. to achieve the novel term, a simple and fast directional filter bank is proposed, which does not employ down sampling and resampling used...

Introduction The vasculitides include a broad spectrum of disorders that span a clinical spectrum from benign, self-limited disease to fulminant conditions that are fatal in the absence of therapy. Whereas the large-vessel vasculitides consist of 2 principal disorders, giant cell arteritis and Takayasu arteritis, the mediumand small-vessel vasculitides are much more diverse, including multiple ...

An analytical method for predicting elastic–plastic stress distribution in a cylindrical pressure vessel has been presented. The vessel material was a ceramic/metal functionally graded material, i.e. a particle–reinforcement composite. It was assumed that the material’s plastic deformation follows an isotropic strain-hardening rule based on the von-Mises yield criterion, and that the vessel was...

Purpose: Doing plyometric training with and without the vessel occlusion is an effective practice for rapid increase of muscles strength their hypertrophy. We evaluated the effects of plyometric training with and without the vessel occlusion on electromyographic parameters. Methods: In this quasi-experimental study, 22 females were selected through convenience sampling method. They were random...

Continuous monitoring of naval activities of vast areas, hundreds of nautical miles away from shoreline, is one of todays most challenging problems. To enable total maritime awareness in these areas, the use of satellite-based sensors is an efficient and cost-effective way to perform this task. The KINGFISHER (Figure 1) is a maritime multi-layer intelligence system created for an in-depth analy...

In the present study, three layers of the ascending aorta in respect to the time and space at various blood pressures have been simulated. Two well-known commercial finite element (FE) software have used to be able to provide a range of reliable numerical results while independent on the software type. The radial displacement compared with the time as well as the peripheral stress and von Mises...

Lignocellulosic biomass was used for thousands of years as animal feed and is now considered a great sugar source for biofuels production. It is composed mostly of secondary cell walls built with polysaccharide polymers that are embedded in lignin to reinforce the cell wall structure and maintain its integrity. Lignin is the primary material responsible for biomass recalcitrance to enzymatic hy...

Abstract In marine vessel operations, fuel costs are major operating which affect the overall profitability of maritime transport industry. The effective enhancement using ship will increase operation efficiency. Since consumption depends on different factors, such as weather, cruising condition, cargo load, and engine it is difficult to assess pattern for various types ships. Most traditional ...

large vessel involvement is one of the hallmarks of behcet’s disease (bd) but its prevalence varies widely due to ethnic variation or environmental factors. the aim of this study is to find the characteristics of vasculo-behcet (vb) in iran. in a cohort of 4769 patients with bd, those with vascular involvement were selected. different manifestations of disease were compared with the remaining g...