in the present study, the effects of growth defects and chromium content loss on the degradation of corrosion andpassivation of cathodic arc evaporation (cae-pvd) of stainless steel coating were investigated in 2 m sulphuricacid solution. eds analysis indicated that the micro-particles were obtained during the coating growth. in addition,it was detected that the growth defects had poor adhesion...

Since the introduction of electron beam (EB) physical vapour deposition (PVD) thermal barrier coatings (TBCs) and their application to moving components in the hot gas stream, erosion has become a prime concern. EB PVD TBCs, due to their unique columnar microstructure are far more strain tolerant than their plasma sprayed (PS) counter parts and can thus be used under more exacting operating con...

This research work presents the high-speed railway line (HSRL) case study constructed on soft soils deposits. The performance of improvement method combining both PVD’s (Prefabricated vertical drains) and surcharge preloading was evaluated herein based numerical simulation approach to predict induced deformations during HSRL construction phase. For this aim, PVD-assisted in situ measurement dat...

In patients with peripheral vascular disease (PVD), mortality is high and renal artery stenosis (RAS) is a frequent incidental finding. RAS carries a high risk for mortality, but whether incidentally discovered RAS is a risk factor for mortality is unknown. The prognostic impact of incidental RAS for mortality was studied in 550 consecutive patients who underwent intra-arterial digital subtract...

The backgrounds of patients undergoing lower limb amputation (LLA) have recently changed dramatically. From the 1970s to the 1990s, the main reason for LLA was traumatic injury.1–3) However, peripheral vascular disease (PVD) and diabetes mellitus (DM) have emerged as major causes of LLA. In recent studies, PVD and DM accounted for 61.0%–92.5% of LLAs.1–4) Previous studies have also reported hig...

We have used near-infrared spectroscopy to measure the hemoglobin saturation at rest and during exercise on patients affected by peripheral vascular disease (PVD). The instrument used in our study is a frequency-domain tissue oximeter which employs intensity modulated (110 MHz) laser diodes. We examined 9 subjects, 3 of which were controls and 6 were patients affected by stage II PVD. The optic...

PURPOSE To examine the factors affecting visual outcome in vitrectomized cases associated with complicated branch retinal vein occlusion (BRVO). MATERIALS AND METHODS Of 114 eyes of 113 patients with BRVO, ages, general complications, distribution of occluding vessels, location of retinal breaks, classification of vitreoretinal pathology and number of cases, period from onset of BRVO to vitre...

UNLABELLED To assess quantitatively regional nutritive muscular blood flow in patients with peripheral vascular disease (PVD), we evaluated the utility of PET with 15O-water. METHODS Eight healthy volunteers and 16 patients with angiographically proven PVD were studied. Regional blood flow of the calf was measured with 15O-water PET during rest, after intra-arterial infusion of prostaglandin ...

This paper presents a steganographic scheme based on the RGB colour cover image. The secret message bits are embedded into each colour pixel sequentially by the pixel-value differencing (PVD) technique. PVD basically works on two consecutive non-overlapping components; as a result, the straightforward conventional PVD technique is not applicable to embed the secret message bits into a colour pi...

Purpose To evaluate the degree of psychological distress in symptomatic vitreous floater patients and to evaluate whether these psychological factors are associated with the severity of discomfort associated with vitreous floaters. Methods We recruited 61 patients with symptomatic vitreous floaters and 34 controls. The degree of posterior vitreous detachment (PVD) was evaluated using optical ...