Results 81 to 90 of about 8,010 (187)

Membrane separation technology in the 1980s [PDF]

open access: yes
The current status of membrane technology is assessed and industrial processes in which membrane technology could effect energy savings or other advantages are identified. The extension of current trends is recommended; i.e., the development of ultrathin
Lonsdale, H. K.
core   +1 more source

Permselectivities of Cation-exchange Membranes

open access: yesThe Journal of the Society of Chemical Industry, Japan, 1960
強酸性樹脂および強塩基性樹脂より製造した不均質イオン交換膜における典型的な陽イオンの選択透過性を, 7 室電解槽により検討した。各室は予かじめ原液をみたしておき,希釈室では液を下方から上方へ流しつづけながら一定電流密度(2A/dm2)で電解透析を行ない,真中の濃縮室の試料液について毎時間ごとに各イオンの定量を行なった。イオンとして2成分系は(Na,Ca),(Na,Mg),(Ca,Mg),(NH4,Mg)の4種類について,3成分系ではCa2+,Mg2+を共通成分として,第3成分としてそれぞれH+,K+,NH4+,Na+を加えて行なった。原液の濃度は各成分約0,05Nを標準とし,Na+のみ例外的に0.5Nとした。2~4時間の電解透析において選択透過係数,すなわち当該イオンの濃縮比の比を比較した結果 ...
Takeo Yamabe, Yonekichi Tanaka
openaire   +2 more sources

A novel Reverse Electrodialysis application to generate power from low-grade heat [PDF]

open access: yes, 2015
A novel idea for the conversion of low-temperature heat into electricity is based on the generation of electricity from salinity gradients using a Reverse Electrodialysis (RED) device in a closed-loop system.
Bevacqua, Maurizio   +6 more
core  

Effect of crowding on the electron transfer process from plastocyanin and cytochrome c6 to photosystem I: a comparative study from cyanobacteria to green algae [PDF]

open access: yes, 2011
Plastocyanin and cytochrome c 6, the alternate donor proteins to photosystem I, can be acidic, neutral or basic; the role of electrostatics in their interaction with photosystem I vary accordingly for cyanobacteria, algae and plants.
Hervás Morón, Manuel   +1 more
core   +1 more source

Water Resistant Composite Membranes for Carbon Dioxide Separation from Methane

open access: yesApplied Sciences, 2018
Membranes that are resistant to water vapor permeation have potential in natural gas sweetening by reducing the need for pretreatment. The perfluorinated polymer Teflon AF1600 has proven resistance to water vapor, which is adapted here in the form of ...
Colin A. Scholes
doaj   +1 more source

Carboxymethyl lysine induces EMT in podocytes through transcription factor ZEB2:Implications for podocyte depletion and proteinuria in diabetes mellitus [PDF]

open access: yes, 2015
Advanced glycation end-products (AGEs) are implicated in the pathogenesis of diabetic nephropathy (DN). N-carboxymethyl-lysine (CML) is one of the predominant AGEs that accumulate in all renal compartments of diabetic patients.
Kumar, P Anil   +5 more
core   +2 more sources

Fabrication of highly permselective mixed matrix graphene oxide/ sodium tripolyphosphate-based cation exchange membranes for monovalent and divalent ion desalination [PDF]

open access: yesشیمی کاربردی روز
In this study, graphene oxide (GO) was functionalized by sodium triphosphate (NaTPP) through a physical grafting method and used as a nanofiller to fabricate cation exchange membranes based on polyvinylidene fluoride (PVDF). The influences of the loading
leila Ghadiri, Leila Naji
doaj   +1 more source

Polyoxometalate-based plasmonic electron sponge membrane for nanofluidic osmotic energy conversion

open access: yesNature Communications
Nanofluidic membranes have demonstrated great potential in harvesting osmotic energy. However, the output power densities are usually hampered by insufficient membrane permselectivity.
Chengcheng Zhu   +7 more
doaj   +1 more source

Correlation Between Polymer Packing And Gas Transport Properties For Co2/N2 Separation In Glassy Fluorinated Polyimide Membrane [PDF]

open access: yes, 2016
Gas separation performance of a membrane highly hinges on its physical properties. In this study, the interplay between polymer packing of a membrane and its gas transport behaviours (permeability and selectivity) was investigated through a series of ...
Ahmad, A. L.   +4 more
core   +2 more sources

Suitable permselective membrane systems

open access: yes, 2021
Ethylene-co-vinyl acetate (EVA) and polyvinyl alcohol (PVA) were used as the precursors for the elaboration of the proton-exchange and gas separation membranes. It was found that the EVA hydrolysis allowed elaborating copolymers with tuned properties for the gas separation due to the different VAc/VOH group ratio.
openaire   +1 more source

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