Results 11 to 20 of about 2,406 (263)

A grateful heart [PDF]

open access: yesEP Europace, 2007
A 72-year-old man presented with advanced symptoms of heart failure due to an idiopathic dilated cardiomyopathy was diagnosed. He presented with sinus rhythm and a left bundle branch block pattern on the electrocardiogram. The echocardiogram showed a severely depressed left ventricular …
Máximo, Rivero-Ayerza   +3 more
openaire   +2 more sources

Experimental hydraulic parameters of drainage grate inlets with a horizontal outflow in the broad-crested weir mode

open access: yesWater Science and Technology, 2023
The accurate assessment of discharge coefficients for different types of water inlets is crucial for minimizing modelling errors in drainage systems thus reducing the risk of flooding in adjacent areas.
Volodymyr Zhuk   +6 more
doaj   +1 more source

Surface plastic deformation method for increasing the wear resistance of fire grates in fiber separating machines [PDF]

open access: yesEPJ Web of Conferences
The article covers materials on the influence of the wear resistance of cast iron grates of fiber separating machines on the technological clearance between them in the mentioned above grate.
Shin Illarion   +3 more
doaj   +1 more source

Numerical study on drag reduction and wake modification for the flows over a hydrofoil in presence of surface heterogeneity

open access: yesAdvances in Mechanical Engineering, 2022
In this article, direct numerical simulations of flow around NACA0012 hydrofoil with superhydrophobic surface (SHS) is presented. Surface heterogeneity takes into account by periodic no-slip and shear-free grates on the surface.
Taiba Kouser   +3 more
doaj   +1 more source

Effect of Wheels, Casters and Forks on Vibration Attenuation and Propulsion Cost of Manual Wheelchairs

open access: yesIEEE Transactions on Neural Systems and Rehabilitation Engineering, 2022
Manual wheelchair users are exposed to whole-body vibrations as a direct result of using their wheelchair. Wheels, tires, and caster forks have been developed to reduce or attenuate the vibration that transmits through the frame and reaches the user ...
Jacob P. Misch   +2 more
doaj   +1 more source

Review of the hydraulic capacity of urban grate inlet: a global and Latin American perspective

open access: yesWater Science and Technology, 2021
The most recent numerical models of urban drainage allow the integration of runoff from roads with the network of sewer pipes, thus evolving towards a holistic version of the system.
M. Cárdenas-Quintero, F. Carvajal-Serna
doaj   +1 more source

Thermal Stresses in the Wall Connections of Cast Grate Structures

open access: yesArchives of Foundry Engineering, 2016
The purpose of this study was to establish a relationship between the type of wall connection used in the cast grates, which are part of the equipment operating in furnaces for heat treatment and thermal-chemical treatment, and stresses generated in ...
Bajwoluk A., Gutowski P.
doaj   +1 more source

Design and Operational Analysis on Natural Gas-fired Cupola [PDF]

open access: yesE3S Web of Conferences, 2020
Due to environmental regulations and social obligation towards society, more and more attention has been paid to the natural gas-fired for its excellent performance of environmental protection, energy saving and green economy.
Li Guangpeng
doaj   +1 more source

Mechanical Stresses Induced by Compression in Castings of the Load-carrying Grate

open access: yesArchives of Foundry Engineering, 2016
The main aim of this study was to examine the compression-induced state of stress arising in castings of the guide grates during operation in pusher-type furnaces for heat treatment. The effect of grate compression is caused by its forced movement in the
Słowik J., Drotlew A., Piekarski B.
doaj   +1 more source

Optimization of the factors affecting the drying rate of cassava grates in a rotary drum dryer

open access: yesAnnals of Tropical Research, 2007
This study determined the optimum effects of temperature, drum rotation and loading rate on the drying rate of cassava grates using the rotary drum dryer in removing moisture from cassava grates.
Daniel Leslie S. Tan   +2 more
doaj   +1 more source

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