Results 41 to 50 of about 91,463 (274)
Evaluation of the properties of complexing agent-collectors of eudialyte flotation [PDF]
Vestnik MGTU, 2015 Acid-based and complexing properties of reagent-collectors (carboxylic and hydroxamic acids, styrylphosphonic acid and dialkyl ether of phosphoric acid) for flotation of zirconium-containing minerals have been studied.
Mitrofanova G.V. +2 more
doaj
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2013 The objective of this work was to evaluate combinations between acid digestion techniques and spectrophotometric quantification to measure chromium concentration in cattle feces.
N.K.P. Souza +6 more
doaj +1 more source
Chronoamperometric study of the passive behaviour of tantalum in hostile media during water addition [PDF]
, 2011 The ability of tantalum to become passive through water addition in methanol solution during chronoamperometric experiments has been investigated. The achievement of passivity was found to be modulated according to the applied electrical potential and ...
Massot, Laurent, Trompette, Jean-Luc
core +1 more source
Advanced Engineering Materials, EarlyView.The formation of nonmetallic inclusions (NMIs) was investigated in this study, carrying out immersion tests for 30 min at a temperature of 1600°C with liquid high‐silicon electrical steel (Si ≈ 3 mass‐%) and different MgO–C refractories. Conventional MgO–C refractories were considered, as well as MgO–C refractories containing MgO–C recyclate and ...
Lukas Neubert +6 more
wiley +1 more source
Corrosion Behaviour of the Anodic Oxide Film on Commercially Pure Titanium in NaCl Environment
International Journal of Electrochemical Science, 2014 Anodic oxide growths on commercially pure titanium in 1 M sulphuric and phosphoric acids have been investigated in the present study. Ruptures and blisters of the oxide layers were found as result of a huge pressure of oxygen bubbles developed within the
Zuojia Liu +4 more
doaj +1 more source
Advanced Functional Materials, EarlyView.A mechanically tunable hydrogel composed of gelatin, chondroitin sulfate and laminin promotes angiogenesis in vitro without the supplement of growth factors. Endothelial cells morphogenesis was further enhanced by medium conditioned with bioactive glass 58S‐released ions (Ca and Si), thus offering a promising strategy to vascularize 3D tissue ...
Marco Piazzoni +13 more
wiley +1 more source
Brazilian Dental ScienceObjective: Knowledge about the effects of different phosphoric acids can help clinicians choose the appropriate acid etchant, preserving dental structure without compromising bond strength.
Karin Landmayer +5 more
doaj +1 more source
Advanced Functional Materials, EarlyView.High‐energy electron impact in plasma catalysis often causes excessive dissociation of active intermediates, limiting C2+ product selectivity. To address this challenge, a bio‐inspired stoma‐shell nanoarchitecture is designed to decouple electron impact from catalytic reaction zones.
Nan Zou +5 more
wiley +1 more source
Synthesis of 2,4,8,10-tetroxaspiro5,5undecane [PDF]
, 1985 Pentaerythritol is converted to its diformal, 2,4,8,10-tetroxaspirol5.5undecane, by heating it to a temperature within the range of about 110 to 150 C, for a period of up to 10 minutes, in the presence of a slight excess of paraformaldehyde and of a ...
Poshkus, A. C.
core +1 more source
Effect of chemically modified Vulcan XC-72R on the performance of air-breathing cathode in a single-chamber microbial fuel cell [PDF]
, 2010 The catalytic activity of modified carbon powder (VulcanXC-72R) for oxygen reduction reaction (ORR) in an air-breathingcathode of amicrobialfuelcell (MFC) has been investigated.
Duţeanu, Narcis Mihai +4 more
core +2 more sources