نتایج جستجو برای: سرمت wc

تعداد نتایج: 6325  

Journal: :MATEC web of conferences 2022

Metal Matrix Composite (MMC) coatings of Tungsten Carbide (WC) and Nickel (Ni) powder were produced using laser cladding process. A crack free good metallurgically bonded WC-Ni coating about 5mm thick from varying both energy density percent mixture Ni WC. In this study, the microstructure characterised optical microscope (OM), scanning electron (SEM) with EDS, while mechanical properties studi...

Journal: :Diabetes care 2011
Harald J Schneider Jens Klotsche Sigmund Silber Günter K Stalla Hans-Ulrich Wittchen

A ccumulating evidence suggests that measures of abdominal obesity outperform BMI in predicting diabetes and cardiovascular risk (1–3). However, it is debated which measure of obesity should be used. Currently, waist circumference (WC) is most commonly used and codefines the metabolic syndrome (4). Unlike waist-to-height ratio (WHtR), WC does not take differences in height into account. We hypo...

ژورنال: :روش های عددی در مهندسی (استقلال) 0
مرتضی شمعانیان m. shamanian احمد ساعتچی a. saatchi مهدی صالحی و توماس نورث m. salehi and t. h north

در این تحقیق ریز ساختار و خواص مکانیکی جوشهای اصطکاکی ti6al4v/(wc-co) مورد بررسی قرار گرفته است. ریزساختار منطقه مجاور جوش در نمونه تیتانیمی در کلیه حالتها متشکل از فریت سوزنی و هم محور همراه با فاز بتا بوده و در کلیه نمونه ها مخلوط شدن مکانیکی و نفوذ متقابل عناصر در یکدیگر رخ داده است. استحکام شکست جوشهای اصطکاکی ti6al4v/(wc-co) با افزایش درصد کبالت موجود در زمینه کاربید تنگستن- کبالت به طور ب...

2015
J. M. Tarragó J. J. Roa J. M. Marshall L. Llanes

The fracture and fatigue characteristics of several cemented carbide grades are investigated as a function of their microstructure. In doing so, the influence of binder chemical nature and content (Co and 76wt%Co-24wt%Ni), as well as carbide grain size on hardness, flexural strength, fracture toughness and fatigue crack growth (FCG) behavior is evaluated. Mechanical testing is combined with a d...

Journal: :Journal of the Japan Society of Powder and Powder Metallurgy 1993

Journal: :Wear 2021

Drill bits equipped with WC-Co cemented carbide buttons offer great performance in many rock drilling applications. Generally, the wear of these against is gradual and moderate, or even slow depending on conditions. However, Co binder has recently been found to cause health issues an alternative binder, which does not compromise carbide, needed. In present work, WC-Fe WC-Ni investigated compare...

2013
Miria Suzana Burgos Leandro Tibiriçá Burgos Marcelo Dias Camargo Silvia Isabel Rech Franke Daniel Prá Antônio Marcos Vargas da Silva Tássia Silvana Borges Pâmela Ferreira Todendi Miriam Beatris Reckziegel Cézane Priscila Reuter

BACKGROUND Obesity has been identified as an important risk factor in the development of cardiovascular diseases; however, other factors, combined or not with obesity, can influence cardiovascular risk and should be considered in cardiovascular risk stratification in pediatrics. OBJECTIVE To analyze the association between anthropometry measures and cardiovascular risk factors, to investigate...

Journal: :Preventive medicine 2008
Paul Sebo Sigrid Beer-Borst Dagmar M Haller Patrick A Bovier

OBJECTIVE To evaluate the reliability of anthropometric measurements (weight, height, Body Mass Index (BMI), waist and hip circumferences (WC; HC) and waist-to-hip ratio (WHR)) performed by doctors to assess obesity. METHOD Repeated anthropometric measurements were performed by 12 primary care physicians on 24 adult volunteers in Geneva, Switzerland, 2006. Volunteers (54% women, mean age 41) ...

2014
Zhaoxue Yin Xiaoming Shi Virginia B. Kraus Melanie Sereny Brasher Huashuai Chen Yuzhi Liu Yuebin Lv Yi Zeng

OBJECTIVES To explore associations of BMI and waist circumference (WC) with disability among the Chinese oldest old. METHODS The 5,495 oldest old in the sixth wave of Chinese Longitudinal Healthy Longevity Study conducted in 2011 were included in this study. Disability was assessed by activities of daily living (ADL); height and weight for BMI and WC were measured; information including socio...

2016
Philip Armour Paul Heaton

Despite the fact that the U.S. workers’ compensation (WC) systems provides tens of billions of dollars in medical care each year, relatively little is known about how changes in health insurance availability affect the incidence and nature of WC claims, and the theoretical relationship is ambiguous. In this paper, we exploit the Affordable Care Act (ACA) young adult dependent coverage expansion...

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