نتایج جستجو برای: pvd coating
تعداد نتایج: 38520 فیلتر نتایج به سال:
BACKGROUND Primary phakic rhegmatogenous retinal detachment (RRD) without posterior vitreous detachment (PVD) represents a unique clinical entity that behaves differently from RRD associated with PVD. While previous studies have reported the long term findings in the fellow eye of patients with RRD and PVD, the outcome of the fellow eye of patients with RRD without PVD is not known. METHODS C...
BACKGROUND In contrast with traditional radiofrequency ablation, little is known about the influence of cryoballoon ablation on the morphology of pulmonary veins (PVs). We evaluated the influence of cryoballoon ablation on the PV dimension (PVD) and investigated the factors associated with a reduction of the PVD. METHODS AND RESULTS Seventy-four patients who underwent cryoballoon ablation for...
This study aims to investigate the improvement of tribocorrosion properties WC-TiC-Co substrates by coating them with hard coatings such as AlCrSiN using cathodic arc deposition. is commonly used in fabrication machining and cutting tools; however, there are some materials titanium or stainless steel that difficult work with; furthermore, aggressive environments under high temperatures performa...
Novel coatings for protecting solid oxide fuel cell interconnects against the dual-atmosphere effect
A key component of a Solid Oxide Fuel Cell (SOFC) is the interconnect, which connects individual fuel cells in series to form cell stack reach desired electrical potential. The interconnect exposed air and parallel, these so-called dual-atmosphere conditions give rise especially severe corrosion on air-side. This work investigates coatings mitigate this effect. Physical Vapour Deposition (PVD) ...
The object of this work was the deposition of a Ta-Hf-C thin film with a gold interlayer on stainless steel, via the physical vapor deposition (PVD) technique, in order to evaluate the properties of different systems subjected to micro-abrasive wear phenomena generated by alumina particles in Ringer's solution. The surface characterization was performed using a scanning electron microscope (SEM...
Spectroscopic Ellipsometry (SE) offers a precise technique for measuring thin film properties. Advanced SE instrumentation has been demonstrated as an excellent technique for monitoring the growth of optical films for sputtering applications. We have recently extended this technique for PVD E-gun evaporated films. In this paper we will show how an SE system was integrated into a standard optica...
OBJECTIVE Dizziness and vertigo are highly prevalent symptoms among patients presenting at primary care clinics, and peripheral vestibular disorder (PVD) is their most frequent cause. However, the incidence of PVD has not been well documented. This study aimed to investigate the incidence of dizziness, vertigo, and PVD among patients presenting at a primary care clinic. DESIGN This was an obs...
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