Results 31 to 40 of about 4,315,669 (293)

Green Fabrication of Sustainable Porous Chitosan/Kaolin Composite Membranes Using Polyethylene Glycol as a Porogen: Membrane Morphology and Properties

open access: yesMembranes, 2023
One of the major challenges in membrane manufacturing today is to reduce the environmental footprint by promoting biobased raw materials and limiting the use of toxic solvents. In this context, environmentally friendly chitosan/kaolin composite membranes,
Sonia Bouzid Rekik   +2 more
doaj   +1 more source

The phase inversion mechanism of the pH-sensitive reversible invert emulsion from w/o to o/w

open access: yesOpen Physics, 2020
Alteration in the environmental conditions will cause a reversed reaction between o/w emulsion and w/o emulsion that has similar advantages of different liquids form on the reversible invert emulsion.
Liu Fei   +12 more
doaj   +1 more source

Occurrence, quantification and removal of triclosan in wastewater of Umbogintwini Industrial Complex in KwaMakhutha, South Africa

open access: yesSouth African Journal of Science, 2023
We report on the detection of an organic pollutant mostly found in local streams and wastewater treatment plants, specifically on triclosan detected in the Umbogintwini Industrial Complex (UIC), located on the south coast of Durban, KwaZulu-Natal in ...
Siyabonga A. Mhlongo   +2 more
doaj   +1 more source

Fully nonlinear inversion of fundamental mode surface waves for a global crustal model [PDF]

open access: yes, 2007
We use neural networks to find 1-dimensional marginal probability density functions (pdfs) of global crustal parameters. The information content of the full posterior and prior pdfs can quantify the extent to which a parameter is constrained by the data.
Meier, U.   +2 more
core   +1 more source

Study on the Properties Changes of Reversible Invert Emulsion during the Process from O/W to W/O with Alkali

open access: yesMolecules, 2023
The reversible emulsion drilling fluid system combines the advantages of both oil-based and water-based drilling fluids, which can achieve ideal results in different stages of drilling and completion, and the system can be reused to effectively reduce ...
Fei Liu   +3 more
doaj   +1 more source

Pengaruh Bentonit terhadap Pembentukan Fasa Polimorf dan Sifat Termal Membran Hibrida Poliviniliden Fluorida/Bentonit

open access: yesAlchemy, 2021
Kajian struktur dan degradasi termal pada membran hibrida poliviniliden fluorida (PVDF)/lempung bentonit (BNT) telah dilakukan. Penelitian ini bertujuan mengetahui pengaruh penambahan BNT terhadap pembentukan fasa PVDF dan sifat termalnya.
Edi Pramono   +11 more
doaj   +1 more source

Morphological characterization of a polymeric microfiltration membrane by synchrotron radiation computed microtomography [PDF]

open access: yes, 2007
Most commercial polymeric membranes are prepared by phase inversion. The performance of the membranes depends greatly on the morphology of the porous structure formed during the different steps of this process.
Thibault, Xavier   +2 more
core   +1 more source

Impact of PWM strategies on RMS current of the DC-link Voltage Capacitor of a dual-three phase drive [PDF]

open access: yes, 2014
The major drawback of usual dual three-phase AC machines, when supplied by a Voltage Source Inverter (VSI), is the occurrence of extra harmonic currents which circulate in the stator windings causing additional losses and constraints on the power ...
ROUHANA, Najib   +5 more
core   +1 more source

Rheology and Catastrophic Phase Inversion of Emulsions in the Presence of Starch Nanoparticles

open access: yesChemEngineering, 2020
Emulsions stabilized by solid nanoparticles, referred to as Pickering emulsions, are becoming increasingly important in applications as they are free of surfactants.
Upinder Bains, Rajinder Pal
doaj   +1 more source

A Comprehensive Review of Performance of Polyacrylonitrile-Based Membranes for Forward Osmosis Water Separation and Purification Process

open access: yesMembranes, 2023
Polyacrylonitrile (PAN), with its unique chemical, electrical, mechanical, and thermal properties, has become a crucial acrylic polymer for the industry.
Nada Abounahia   +4 more
doaj   +1 more source

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