• Aucun résultat trouvé

Iron oxides

In vitro bioactivity and stem cells attachment of three-dimensionally ordered macroporous bioactive glass incorporating iron oxides

In vitro bioactivity and stem cells attachment of three-dimensionally ordered macroporous bioactive glass incorporating iron oxides

... is modi fied by the sedimentation of Ca and P while the nonmagnetic 3DOM BG forms the calcium phosphate by the ionic exchange following the Hench mechanism. The adult human adipose tissue derived stem cells (hADSCs) can ...

13

In vitro bioactivity and stem cells attachment of three-dimensionally ordered macroporous bioactive glass incorporating iron oxides

In vitro bioactivity and stem cells attachment of three-dimensionally ordered macroporous bioactive glass incorporating iron oxides

... is modi fied by the sedimentation of Ca and P while the nonmagnetic 3DOM BG forms the calcium phosphate by the ionic exchange following the Hench mechanism. The adult human adipose tissue derived stem cells (hADSCs) can ...

14

Electrochemical dissolution and passivation phenomena of gold cyanidation from roasted ore in the presence of iron oxides

Electrochemical dissolution and passivation phenomena of gold cyanidation from roasted ore in the presence of iron oxides

... of iron oxides on the gold surface, which is an indication of slowdown in the gold leach ...of iron oxides were detected with the association of calcium-magnesium ...

235

Characterization of iron oxides in mineral dust aerosols: Implications for light absorption

Characterization of iron oxides in mineral dust aerosols: Implications for light absorption

... the iron oxide – clay aggregates were constructed by considering the aggregation of either hema- tite or goethite with kaolinite or illite resulting in four types of aggregates: hematite-illite (HI), ...

20

Interactions of ribonucleotides with aluminium and iron oxides under varying environmental conditions

Interactions of ribonucleotides with aluminium and iron oxides under varying environmental conditions

... The iron oxides: structures, properties, reactions, occurence and uses, p 85-86; Sverjensky, 2005, GCA 69 (2) 225–257; Feuillie et al, 2015, Langmuir 31 (1) 240–248; He et al, ...

2

Fouling of Steam Generator Tubes in Nuclear Power Plants : Investigation on the Preventive Effect of Polyacrylic Acid on Iron Oxides Deposition

Fouling of Steam Generator Tubes in Nuclear Power Plants : Investigation on the Preventive Effect of Polyacrylic Acid on Iron Oxides Deposition

... of iron oxides) in SGs and to determine the action mechanism(s) of PAA on iron ...increased iron concentration at the loop exit with the injection of ...

13

The effect of polyacrylic acid on iron oxides formed on steam generator tubes and on metallic copper present in pressurized water reactors

The effect of polyacrylic acid on iron oxides formed on steam generator tubes and on metallic copper present in pressurized water reactors

... each test, we can conclude that the PAA effect on iron oxide is similar for both pH. In the other hand, for the ethanolamine conditioning, the observed iron content difference of 10 % between pH 9.1 and pH ...

17

Decomposition of hydrogen peroxide and organic compounds in the presence of iron and iron oxides

Decomposition of hydrogen peroxide and organic compounds in the presence of iron and iron oxides

... Unknown parameters in this model are the rate constants of reactions 11 and 12 and the concentration of total dissolved Fe(III).. First, increasing the amount of ferrihydrit[r] ...

182

Prediction of isoelectric point of manganese and cobalt lamellar oxides : application to controlled synthesis of mixed oxides

Prediction of isoelectric point of manganese and cobalt lamellar oxides : application to controlled synthesis of mixed oxides

... layered oxides, exfoliating them, and restacking them ...on iron oxides and was verified for an accurate prediction of manganese and cobalt oxides, is it is reasonable to think that it can be ...

16

Cation-disordered oxides for rechargeable lithium battery cathodes

Cation-disordered oxides for rechargeable lithium battery cathodes

... 97 Oxygen loss from LNTMO20 can also be inferred from the cyclic voltammetry (CV) tests. Figure 3-12b shows the first cycle CV profile of LNTMO20. When the oxidation cutoff voltage is 4.1 V (red), we observe a main ...

127

The global lightning-induced nitrogen oxides source

The global lightning-induced nitrogen oxides source

... The parameterisation for maritime thunderstorms is based on observations in- dicating that marine thunderstorms with the same CTH have weaker updrafts, resulting in lower lightning frequ[r] ...

197

Co–Ce Oxides Supported on SBA-15 for VOCs Oxidation

Co–Ce Oxides Supported on SBA-15 for VOCs Oxidation

... The most active catalysts in all studied reactions are mono-component cobalt. The addition of cerium oxide worsens the catalytic activity in all three reactions studied. According to the literature data, the different ...

15

The adsorption of nitrogen oxides on crystalline ice

The adsorption of nitrogen oxides on crystalline ice

... Fig. 7. Correlation of dipole moment (Lide, 2001-2002) and the ex- perimentally found adsorption enthalpy for NO, NO 2 , HONO and HNO 3 . bonds. The strength of a hydrogen bond depends on the ca- pability of an ice ...

14

The global lightning-induced nitrogen oxides source

The global lightning-induced nitrogen oxides source

... gen oxides (LNO x ) source is important for understanding and predicting the nitrogen oxides and ozone distributions in the troposphere and their trends, the oxidising capacity of the atmosphere, and the ...

86

Direct electroreduction of oxides in molten fluoride salts

Direct electroreduction of oxides in molten fluoride salts

... these oxides was studied by linear sweep voltammetry: a current corresponding to the oxide reduction was evidenced for TiO 2 , SnO 2 and Fe 3 O 4 ...all oxides, except TiO, and the structure of reduced Ti ...

7

Resupply of mesopelagic dissolved iron controlled by particulate iron composition

Resupply of mesopelagic dissolved iron controlled by particulate iron composition

... Remineralization of upper ocean particles: Implications for iron biogeochemistry. Dust deposition: iron 295[r] ...

39

Transition metal oxides for combustion and depollution processes

Transition metal oxides for combustion and depollution processes

... 8 6.3 Oxidation of carbon monoxide CO, which is highly toxic, is an important constituent of the automotive exhaust gases and its abatement is crucial not only to limit the environment pollution but also to prevent ...

58

Tritium trapping by metal oxides in radioactive wastes

Tritium trapping by metal oxides in radioactive wastes

... SUMMARY: Fusion facilities like ITER will produce radioactive waste during operation and dismantling phase. A part of those waste generated by this fusion machine are tritiated waste that have to be managed. One of the ...

11

Nanostructured zinc and tin oxides for gas sensors

Nanostructured zinc and tin oxides for gas sensors

... ACKNOWLEDGMENTS: PRES, Région Midi-Pyrénées (NELI program -Nez Electronique Intégré-), BPI France and Sigfox SA for « Object’s World » project funding, and V. Collière (TEMSCAN Toulouse ) for SEM and TEM images. ...

2

Nanosized iron and iron–cobalt spinel oxides as catalysts for methanol decomposition

Nanosized iron and iron–cobalt spinel oxides as catalysts for methanol decomposition

... binary oxides compared to the corresponding non-supported ones could be due to different ions distribution in the spinel structure after their deposition on the activated ...

12

Show all 921 documents...

Sujets connexes