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Observation of Grease Fluidity in a Ball Bearing Using Neutron Imaging Technology

open access: yesTribology Online, 2021
The grease fluidity and migration inside a ball bearing has been visualized non-destructively by using a neutron imaging technology. It has been clarified that a lithium (Li) complex grease with lower torque lubricates in the channeling state and that a ...
Kazumi Sakai   +4 more
doaj   +1 more source

Epitachophoresis is a novel versatile total nucleic acid extraction method

open access: yesScientific Reports, 2021
Epitachophoresis is a novel next generation extraction system capable of isolating DNA and RNA simultaneously from clinically relevant samples. Here we build on the versatility of Epitachophoresis by extracting diverse nucleic acids ranging in lengths ...
Vladimira Datinska   +8 more
doaj   +1 more source

An ultra-small nine-color spectrometer with a two-layer biparted ten-dichroic-mirror array and an image sensor

open access: yesScientific Reports, 2022
An ultra-small (54 × 58 × 8.5 mm) and large aperture (1 × 7 mm) nine-color spectrometer—using an array of ten dichroic mirrors “biparted” as two layers—was developed and used for snapshot spectral imaging. Incident-light flux with a cross section smaller
Takashi Anazawa   +2 more
doaj   +1 more source

Achiral Molecular Recognition of Substituted Aniline Position Isomers by Crown Ether Type Chiral Stationary Phase

open access: yesMolecules, 2021
To understand the selectivity of the crown ether type chiral stationary phase (CSP), the retention selectivity for aniline and the positional isomers of substituted anilines were studied.
Atsushi Ohnishi   +4 more
doaj   +1 more source

Analytical Approximate Solution of Chemical Kinetics Problems [PDF]

open access: yesComputational Algorithms and Numerical Dimensions, 2022
In this article, the chemical kinetics problem is presented. The Differential Transformation Method (DTM) is presented to find an approximate analytical solution to the chemical kinetics problems.
Hatıra Günerhan
doaj   +1 more source

MOTION ANALYSIS OF POINT OF A SIMPLE MECHANISM [PDF]

open access: yesActa Tecnología, 2019
This article deals with motion analysis of point of a simple mechanism executing a rotational movement. We analysed the movement of its end points. The trajectories of points is cardioids.
Darina Hroncová, Ingrid Delyová
doaj   +1 more source

Approximate analytical solutions for multispecies convection-dispersion transport equation with variable parameters

open access: yesFrontiers in Earth Science, 2023
Multispecies pollutant migration often occurs in polluted groundwater systems. Most of the multispecies problems that have been dealt in the literature assume constant transport parameters, primarily because analytical solutions for varying parameters ...
Manotosh Kumbhakar, Vijay P. Singh
doaj   +1 more source

Numerical and Analytical Approach for Film Condensation on Different Forms of Surfaces [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2019
This paper tries to achieve a solution for problems that concern condensation around a flat plate, circular and elliptical tube in by numerical and analytical methods. Also, it calculates entropy production rates. At first, a problem was solved with mesh
Ammar Kazemi Jouybari   +1 more
doaj   +1 more source

Differential Precipitation of Mg(OH)2 from CaSO4·2H2O Using Citrate as Inhibitor—A Promising Concept for Reagent Recovery from MgSO4 Waste Streams

open access: yesMolecules, 2020
In hydrometallurgical processing and acidic wastewater treatment, one of the neutralizing agents employed is MgO or Mg(OH)2. At the end of this process, the resulting solution, which is rich in SO42− and Mg2+ is treated with lime to remove (or minimize ...
Szilveszter Ziegenheim   +5 more
doaj   +1 more source

Analytical and Numerical Solutions for the Thermal Problem in a Friction Clutch System

open access: yesComputation, 2021
The dry friction clutch is an important part in vehicles, which has more than one function, but the most important function is to connect and disconnect the engine (driving part) with driven parts.
Laith A. Sabri   +4 more
doaj   +1 more source

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