نتایج جستجو برای: pvd coating
تعداد نتایج: 38520 فیلتر نتایج به سال:
BACKGROUND Tremendous advances have occurred in therapies for peripheral vascular disease (PVD); until recently, however, it has not been possible to examine the entire clinical trial portfolio of studies for the treatment of PVD (both arterial and venous disease). METHODS AND RESULTS We examined interventional trials registered in ClinicalTrials.gov from October 2007 through September 2010 (...
PVD (physical vapor deposition) and CVD (chemical have gained greater significance in the last two decades with mandatory shift from electrodeposition processes to clean deposition due environmental, public safety, health concerns. Due frequent use of coatings several industrial sectors, importance studying chromium coating through PVD–sputtering can be realized, investing a real alternative el...
Peripheral vascular disease (PVD) is common among patients undergoing hemodialysis, but little is known regarding the risk factors for PVD in this population. Data from waves 1, 3, and 4 of the United States Renal Data System Dialysis Morbidity and Mortality Study were used to examine cross-sectional associations of a range of conventional cardiovascular risk factors and uremia- or dialysis-rel...
In this study, two polymeric materials were tested in a dry rotating “pin-on-disc” configuration against differently coated surfaces, to evaluate their tribological response under conditions, such as those of rotary lip seals, and identify the wear mechanism each coupling. A PTFE based material, reinforced with glass fibers solid lubricant, unreinforced polyketone chromium oxide coating deposit...
The lubrication effect of solid-based materials has been recognized for centuries, but their use as lubricants dates back to only about 50 years. Solid are used in applications where parts operate under severe operating conditions such extreme temperatures and very high vacuum. replace liquid based operation environmental that beyond the capability a liquid-based lubricant or vacuum, cryogenic ...
PURPOSE The aim of this study was to quantify the ability to identify odors in normal tension glaucoma (NTG) patients and healthy subjects with and without a primary vascular dysregulation (PVD). METHODS Both self-assessment of smell perception and evaluation of odor identification by means of the 12-item odor identification test ("Sniffin' Sticks") were performed in the following groups of s...
Article history: Received 18 March 2016 Revised 16 July 2016 Accepted in revised form 28 July 2016 Available online xxxx Photoluminescence piezospectroscopy (PLPS) was used as a non-destructive technique for the measurement of residual stresses within the thermally grown oxide (TGO) layer beneath plasma-spray thermal barrier coatings (TBC). The technique has proved to be very effective for such...
in this study, physical vapor deposition (pvd) ti-cr-n coatings were deposited at two different temperatures100 and 400ºc on hardened and tempered tool steel substrates. the influence of the applied deposition temperature on the physical and mechanical properties of coatings such as roughness, thickness, phase composition, hardness and young’s modulus were evaluated. phase compositions were stu...
BACKGROUND Nociception generally evokes rapid withdrawal behavior in order to protect the tissue from harmful insults. Most nociceptive neurons responding to mechanical insults display highly branched dendrites, an anatomy shared by Caenorhabditis elegans FLP and PVD neurons, which mediate harsh touch responses. Although several primary molecular nociceptive sensors have been characterized, les...
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