نتایج جستجو برای: پوشش wc
تعداد نتایج: 30871 فیلتر نتایج به سال:
BACKGROUND The prevalence of obesity is increasing throughout the world.Obesity assessed by body mass index (BMI) has shown to be associated with gestational complications while the relationship using waist circumference (WC) is not clear yet. The present study was aimed to determine the relationship between WC and adverse pregnancy complications. METHODS In this prospective cohort study, 114...
امروزه کاربرد پوشش WC-10Co-4Cr ایجاد شده توسط HVOF، در قطعات کلیدی صنایع مختلف، به میزان قابل توجهای توسعه یافته است. این پوشش ها به منظور دستیابی به صافی سطحی مطلوب سنگزنی می شوند. در این مطالعه، به بررسی اندازه گیری تجربی و تحلیل المان محدود تنش پسماند پوشش پس از فرایند سنگ زنی، پرداخته شد. در اندازه گیری تجربی، تنش پسماند پوشش توسط تکنیک پراش اشعه ایکس (XRD) به روش sin2 ...
تنش های پسماند خاصیتی جدایی ناپذیر از پوشش های پاشش حرارتی هستند که بسته به حالت-شان می توانند برای عملکرد و عمر قطعه زیان بار یا مفید باشند. پوشش های کاربید تنگستن کبالت پاشش حرارتی در گستره وسیعی از کاربردها برای مقاومت در برابر شرایط شدید سایشی استفاده می شوند. روش پراش اشعه x یکی از روش های ارزیابی تنش های پسماند در پوشش ها است. روش پراش اشعه x فاصله بین اتمی و کرنش در ماده را اندازه می گیر...
The scope of this study was to evaluate the association between waist circumference (WC) and body mass index (BMI) of Brazilian women of childbearing age studied in the most recent National Demographic and Health Survey (NDHS), in 2006. This study is an excerpt of the NDHS, which is a home-based cross-sectional study. The nutritional status of women was assessed by WC and BMI, considering exces...
BACKGROUND We examined the relationship between changes in waist circumference (WC) and the incidence of nonalcoholic fatty liver disease (NAFLD). METHODS A cohort study of 37,130 men and women were followed-up annually or biennially. Differences in WC between baseline and subsequent measurements were categorized in quartiles: first (WC loss), second (no change in WC as the reference), third ...
BACKGROUND Tungsten carbide nanoparticles are being explored for their use in the manufacture of hard metals. To develop nanoparticles for broad applications, potential risks to human health and the environment should be evaluated and taken into consideration. OBJECTIVE We aimed to assess the toxicity of well-characterized tungsten carbide (WC) and cobalt-doped tungsten carbide (WC-Co) nanopa...
Objective To exploit material decomposition analysis in dual-energy spectral computed tomography (CT) to assess the blood supply status of the ground-glass opacity (GGO) in lungs. Materials and Methods This retrospective study included 48 patients with lung adenocarcinoma, who underwent a contrast-enhanced dual-energy spectral CT scan before treatment (53 GGOs in total). The iodine concentrat...
BACKGROUND Waist circumference (WC) is used as a risk assessment for metabolic syndrome, diabetes, and cardiovascular disease (CVD). WC consists of visceral fat area (VFA), subcutaneous fat area (SFA), muscle, intramuscular fat, viscera, and bone. Each component of the WC may differ between the sexes and generations, even if they have the same WC. However, this has not been measured in an epide...
BACKGROUND While body mass index percentiles (BMI%) are commonly used to assess childhood cardiovascular risk, waist circumference percentiles (WC%) are not commonly used nor universally accepted. We tested whether BMI% or WC% should be used to identify risk factor patterns in children at high-risk for developing cardiovascular disease (CVD). A total of 107 children (8-19 years) with cardiovasc...
Thermal sprayed HVOF WC-based cermet coatings containing various metallic binders have been used in several different applications industries that require abrasive sliding wear resistance, such as hydraulic pistons, shafts or bearings. The potential dangerousness and cost increase off cobalt-based binders, underlining the challenge reducing reliance on this metal binder resistant coatings. pres...
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