Results 1 to 10 of about 316,967 (352)

On-Line Preconcentration and Simultaneous Determination of Cu and Mn in Water Samples Using a Minicolumn Packed with Sisal Fiber by MIP OES

open access: yesMolecules, 2021
An on-line preconcentration system for the simultaneous determination of Copper (Cu) and manganese (Mn) in water samples was developed and coupled to a microwave-induced plasma optical emission spectrometer (MIP OES).
Javier Silva, Mariela Pistón
doaj   +1 more source

Modeling of hydraulic support system for large structures

open access: yesNihon Kikai Gakkai ronbunshu, 2021
In the control of a large structure, hydraulic equipment is often used because it requires a large output. In this study, we focus on the telescope as an example of a large structure, and model its hydraulic support system and analyze its characteristics
Tomoya HATTORI   +5 more
doaj   +1 more source

Experimental validation of hydraulic support system for large structures

open access: yesNihon Kikai Gakkai ronbunshu, 2021
In the control of a large structure, hydraulic equipment is often used because it requires a large output. In this study, we focus on a telescope as an example of a large structure, and experimentally verify the basic characteristics of the hydraulic ...
Tomoya HATTORI   +7 more
doaj   +1 more source

Effect of Blowby on the Leakage of the Three-Piece Oil Control Ring and Subsequent Oil Transport in Upper Ring-Pack Regions in Internal Combustion Engines

open access: yesLubricants, 2022
The lubricating oil consumption (LOC) in internal combustion engines contributes to emission and deteriorates the performance of the aftertreatment. In this work, an optical engine with a 2D Laser-induced fluorescence (2D-LIF) system was used to study ...
Mo Li, Tian Tian
doaj   +1 more source

Energy Losses Related to Ring Pack Wear in Gasoline Car Engine

open access: yesEnergies, 2022
Decreasing production and rising prices of cars, especially those with electric drive, lead to longer use of cars with internal combustion engines. It can be assumed that in the future, more and more cars powered by such engines with high mileage and ...
Grzegorz Koszalka, Paweł Krzaczek
doaj   +1 more source

The influence of coolant scale deposit inside the internal combustion engine on the piston and cylinder deformations [PDF]

open access: yesTransport, 2005
This paper presents the analysis of the influence of engine coolant scale deposits on the deformations in the piston ‐ cylinder pair. The results of carried out calculations enable to make more precise evaluation of cylinder repair dimensions.
Giedrius Garbinčius   +3 more
doaj   +2 more sources

THE INFLUENCE OF ENGINE SPEED ON THERMAL STRESSES OF THE PISTON [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2016
In the paper, numeric calculations relating to the influence of engine speed on thermal stresses of the piston in a turbocharged diesel engine in the initial phase of its work were carried out.
Piotr GUSTOF   +3 more
doaj   +1 more source

Numerical investigation of the real and ideal gap profiles in the calculation of the pressure distortion coefficient and piston fall rate of an LNE 200 MPa pressure balance [PDF]

open access: yes, 2013
This paper aims to investigate, by means of numerical simulation, the effect of gap profiles on the calculation of the pressure distortion coefficient (λ) and the piston fall rate (vf) of two piston-cylinder units used in a Laboratoire National de ...
NOGUERA, Ricardo   +3 more
core   +11 more sources

Titanium and Platinum–Fluoroplastic Stapes Prostheses Visualization on Cone Beam Computed Tomography and High-Resolution Computed Tomography

open access: yesLife, 2021
Objective: The aim of this study was to evaluate whether stapes prostheses can be visualized with less metal artifacts and therefore more accurately on cone beam computed tomography in comparison to computed tomography imaging.
Valerie Dahm   +7 more
doaj   +1 more source

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