نتایج جستجو برای: impactor

تعداد نتایج: 1284  

Journal: :The Annals of occupational hygiene 2010
Winthrop F Watts David D Gladis Matthew F Schumacher Adam C Ragatz David B Kittelson

A low cost, battery-operated, portable, real-time aerosol analyzer is not available for monitoring diesel particulate matter (DPM) concentrations in underground mines. This study summarizes a field evaluation conducted at an underground limestone mine to evaluate the potential of the TSI AM 510 portable photometer (equipped with a Dorr-Oliver cyclone and 1.0-mum impactor) to qualitatively track...

2015
Mona Moustafa Amer Mohamed Abdel-Rahman Ahmed Hyam Nazmy

Outdoor aerosol particles were characterized in industrial area of Samalut city (El-minia/Egypt) using low pressure Berner cascade impactor as an aerosol sampler. The impactor operates at 1.7 m(3)/h flow rate. Seven elements were investigated including Ca, Ba, Fe, K, Cu, Mn and Pb using atomic absorption technique. The mean mass concentrations of the elements ranged from 0.42 ng/m(3) (for Ba) t...

Journal: :International Journal of Fracture 2023

Abstract This study presents numerical analyses for edge chipping by impact loading. As a analysis method, we extend Particle Discretization Scheme Finite Element Method (PDS-FEM) developed the authors to be able simulate fracture due We performed simulations targeting of soda-lime glass rigid steel sphere and examined crack morphology while varying diameter impactor, velocity, distance. The pr...

Journal: :Energies 2022

Recently, the use of prismatic cells in electric vehicles has increased significantly. Unlike cylindrical or pouch format, cell format not been sufficiently investigated. In this study, quasi-static mechanical tests are performed on cells. The include a and hemispherical impactor that mechanically load all three spatial directions. both in-plane directions, stack consisting is tested to capture...

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