نتایج جستجو برای: gas transmission pipelines welders

تعداد نتایج: 495634  

2006
Max Costa Anatoly Zhitkovich Paolo Toniolo

A new method for detecting DNA-protein cross-links involving selective precipitation of DNA containing cross-linked proteins by k -sodium dodecyl sulfate was utilized in the peripheral WBC of 21 male metal arc welders and in 26 male controls of similar age and racial characteristics who were not exposed to welding fumes. DNA was quantitated by Hoechst fluorescence. Although the concentration of...

Journal: :JOURNAL OF HYDROCARBON POWER ENGINEERING 2019

Journal: :Industrial health 1988
R Flechsig

The purpose of this review of the last ten years' publications was to show our nresent knowledge ahout welding-fume effects on the respiratory system. Welding generates particles and gases which are characteristic for the method used and the material welded. Various investigations to determine if respiratory system diseases occur more often in welders than in others not exposed have yielded div...

Journal: :British journal of industrial medicine 1967
D C Stanescu L Pilat N Gavrilescu D B Teculescu I Cristescu

Sixteen working welders with more than seven years' exposure and a chest radiograph suggestive of siderosis and I3 healthy unexposed men were studied. Each subject had a comprehensive medical and work history, physical examination, standard chest film, and pulmonary function investigation (lung volumes, ventilatory capacities, pulmonary compliance in static and dynamic conditions, specific comp...

2015
Huiqi Li Maria Hedmer Monica Kåredal Jonas Björk Leo Stockfelt Håkan Tinnerberg Maria Albin Karin Broberg Horacio Bach

OBJECTIVES Occupational exposure to particulate air pollution has been associated with an increased risk of cardiovascular disease. However, the risk to welders working today remains unclear. We aimed to elucidate the cardiovascular effects of exposure to welding fumes. METHODS In a cross-sectional study, structured interviews and biological sampling were conducted for 101 welders and 127 con...

Journal: :Egyptian Journal for Engineering Sciences and Technology 2018

Journal: :Research Journal of Applied Sciences, Engineering and Technology 2014

Journal: :Frontiers in Earth Science 2023

Risk assessment is critical to ensure the safe operation of oil and gas pipeline systems. The core content such risk determine failure probability pipelines quantitatively accurately. Hence, this study combines MATLAB neural network toolbox adopts an Radial Basis Functions (RBF) with a strong non-linear mapping relationship build corrosion prediction model for buried gathering transmission pipe...

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