Results 51 to 60 of about 99,952 (345)

Tuning the Dielectric Properties of Individual Clay Nanosheets by Interlayer Composition: Toward Nano‐Electret Materials

open access: yesAdvanced Functional Materials, EarlyView.
The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich   +6 more
wiley   +1 more source

Change in fluoride content of Maltese tapwaters : implications for oral health [PDF]

open access: yes, 1989
Dietary intake of fluoride is believed to be largely derived from drinking water. In Malta, tap water presently contains less fluoride than is found in naturally occurring ground water obtained from aquifers.
Borg, Vincent, Vella, Alfred J.
core  

Reverse osmosis membrane composition, structure and performance modification by bisulphite, iron(III), bromide and chlorite exposure [PDF]

open access: yes, 2016
Reverse osmosis (RO) membrane exposure to bisulphite, chlorite, bromide and iron(III) was assessed in terms of membrane composition, structure and performance.
Cortina Pallás, José Luís   +2 more
core   +2 more sources

Continuous‐Flow Photocatalytic Degradation of Glyphosate and Aminomethylphosphonic Acid Under Simulated Sunlight with TiO2‐Coated Poly(vinylidene fluoride) Membrane

open access: yesAdvanced Functional Materials, EarlyView.
Glyphosate (GLY) and its primary metabolite, aminomethylphosphonic acid (AMPA), are photodegraded using a poly(vinylidene fluoride) membrane with immobilized titanium dioxide (PVDF‐TiO2) in a continuous flow‐through operation under solar light. At optimized conditions, the PVDF‐TiO2 membrane achieved 95% GLY and 80% AMPA removal with •O2− as the ...
Phuong B. Trinh   +4 more
wiley   +1 more source

Analysis and treatment of RO membrane fouling in sewage treatment system of thermal power plant

open access: yesGongye shui chuli
After purification treatment, the circulating cooling wastewater from a certain thermal power plant was reused. However, malfunction occurred during the operation of the reverse osmosis (RO) membrane unit in the purification treatment system, resulting ...
ZHOU Xunping   +3 more
doaj   +1 more source

Design for waste-management system [PDF]

open access: yes, 1973
Study was made and system defined for water-recovery and solid-waste processing for low-rise apartment complexes. System can be modified to conform with unique requirements of community, including hydrology, geology, and climate.
Guarneri, C. A., Reed, A., Renman, R.
core   +1 more source

Ionic Control of Microstructure and Lubrication in Charged, Physically Cross‐Linked Hydrogels

open access: yesAdvanced Functional Materials, EarlyView.
Here, charged, physically cross‐linked poly(methacrylamide‐co‐methacrylic acid) hydrogels stabilized by a short‐range attractive, long‐range repulsive potential is investigated. This work uncovers how salt addition alters not only swelling, but also the microstructure and dynamics, near‐surface stiffness and charge, and ultimately, its lubricity. Salts
Alexander Deptula   +1 more
wiley   +1 more source

Separation Performance of the Reverse Osmosis Membrane and Its Application in Air-conditioning

open access: yesZhileng xuebao, 2014
The separation mechanism of reverse osmosis membrane was described. Flux formulas, applications and limitations of various theoretical separation models were summarized here.
Hu Huitao   +3 more
doaj  

A Comparative Techno-Economic Analysis of Different Desalination Technologies in Off-Grid Islands

open access: yesEnergies, 2020
Freshwater in off-grid islands is sourced from rain, groundwater, or mainland imports, which are unreliable, limited, and expensive, respectively. Sustainable freshwater generation from desalination of abundant seawater is another alternative worth ...
Michael Castro   +3 more
doaj   +1 more source

Trace ions rejection tunning in NF by selecting solution composition: Ion permeances estimation [PDF]

open access: yes, 2017
Nanofiltration (NF) is suggested to selectively remove ionic species in aqueous process streams taking benefit of both membrane and aqueous solution composition. The importance of predicting and optimizing selective ion rejections by NF not only of major
Cortina Pallás, José Luís   +3 more
core   +2 more sources

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