نتایج جستجو برای: the foam

تعداد نتایج: 16057323  

Journal: :Arteriosclerosis 1983
R E Pitas T L Innerarity R W Mahley

Beta-migrating very low density lipoproteins (beta--VLDL) and chemically modified low density lipoproteins (LDL), labeled with the fluorescent probe 3,3'-dioctadecylindocarbocyanine (Dil), were used to determine whether foam cells from atherosclerotic lesions have lipoprotein receptors similar to those of macrophages. The advantage of the Dil probe is that it produces a brilliant fluorescence d...

Journal: :The New England journal of medicine 2008
Roeland P M Ceulen Anja Sommer Kevin Vernooy

To the Editor: Chronic venous insufficiency is a common disease in adulthood. One recently developed therapy for varicose veins is foam sclerotherapy.1 We used foam sclerotherapy in a 51-year-old man and a 33-year-old woman who had symptomatic varicose great saphenous veins and were otherwise healthy. Immediately after the initiation of treatment, transient scotomas developed in the man, and a ...

2000
V. R. Gervasi F. Z. Shaikh

Lost-foam (also known as Expendable Pattern Casting, EPC) is an ever-growing metal casting technique, capable of producing complex metal components without parting lines. Mold preparation for lost-foam casting is typically accurate, but expensive and slow. The goal of this research was to develop a new approach for producing rapid lost-foam molds. With this new approach, patterns generated by S...

Abravi, M.S. , Izadpanahi, A. , Mahdavi Shahri, M. ,

This paper introduces a novel soldering method for joining aluminum foams to aluminum plates. In this method, a rotating aluminum plate is soldered to the aluminum foam using zinc-based solder material. Rotation of the aluminum plate over the solder material drags the solder material and stirring it. Excellent tensile strength was obtained compared to those samples that are welded with the sold...

2010
Lara Wetton Johnny Kwei John Kippen Sean Nicklin Mark Gillies William R. Walsh

BACKGROUND Successful skin grafting requires multiple factors for success. An even distribution of constant pressure exerted upon the graft is necessary for successful graft take. It is well known that excessive pressure on a graft causes ischemia and may result in the failure of graft take. The aim of this study was to demonstrate the variation in skin pressure (tension) on curved surfaces, pa...

2015
Catherine Queille-Roussel Martin Olesen John Villumsen Jean-Philippe Lacour

BACKGROUND AND OBJECTIVE The antipsoriatic effect of an innovative aerosol foam formulation of fixed combination calcipotriol 50 μg/g (as hydrate; Cal) and betamethasone 0.5 mg/g (as dipropionate; BD) was explored in order to compare the effect with that of the first-line treatment Cal/BD ointment. METHODS This was a Phase IIa, single-centre, investigator-blinded, exploratory study, with intr...

Abravi, M.S. , Izadpanahi, A. , Mahdavi Shahri, M. ,

This paper introduces a novel soldering method for joining aluminum foams to aluminum plates. In this method, a rotating aluminum plate is soldered to the aluminum foam using zinc-based solder material. Rotation of the aluminum plate over the solder material drags the solder material and stirring it. Excellent tensile strength was obtained compared to those samples that are welded with the sold...

2010
Micky Kelager Kenny Erleben

Foam is the natural phenomenon of bubbles that arise due to nucleation of gas in liquids. The current state of art in Computer Graphics rarely includes foam effects on large scales. In this paper we introduce a vertexbased, quasi-static equilibrium model from the field of Computational Physics as a new paradigm for foam effects. Dynamic processes like gas diffusion and bubble collapse are added...

The main objective of this research is to improvethe design and performance of the polyurethane foam-filled thin-walled aluminum grooved circular tubes using multi-response optimization (MRO) technique. The tubes are shaped with the inner and the outer circular grooves at different positions along the axis. For this aim, several numerical simulations using ABAQUS finite element explicit code ar...

Journal: :BMC Musculoskeletal Disorders 2008
Purvi SD Patel Duncan ET Shepherd David WL Hukins

BACKGROUND Polyurethane (PU) foam is widely used as a model for cancellous bone. The higher density foams are used as standard biomechanical test materials, but none of the low density PU foams are universally accepted as models for osteoporotic (OP) bone. The aim of this study was to determine whether low density PU foam might be suitable for mimicking human OP cancellous bone. METHODS Quasi...

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