Results 31 to 40 of about 324,339 (294)

Silicate determination in sea water: toward a reagentless electrochemical method [PDF]

open access: yes, 2007
ilicate has been determined in sea water by four different electrochemical methods based on the detection of the silicomolybdic complex formed in acidic media by the reaction between silicate and molybdenum salts.
Comtat, Maurice   +7 more
core   +4 more sources

Mathematical Modelling of Nitric Oxide/Cyclic GMP/Cyclic AMP Signalling in Platelets [PDF]

open access: yesInternational Journal of Molecular Sciences, 2018
Platelet activation contributes to normal haemostasis but also to pathologic conditions like stroke and cardiac infarction. Signalling by cGMP and cAMP inhibit platelet activation and are therefore attractive targets for thrombosis prevention. However, extensive cross-talk between the cGMP and cAMP signalling pathways in multiple tissues complicates ...
Rune Kleppe   +3 more
openaire   +4 more sources

Kinetics Oxidation and Characterization of Cyclically Oxidized Layers at High Temperatures for FeMnSiCrNiCe and FeSiCrNi Alloys [PDF]

open access: yesMaterials Research, 2017
Conventional stainless steels are used in cyclic oxidation, but the high amount of Cr and mainly Ni increase the price of these alloys. The objective of the present study was to assess the cyclic oxidation resistance of FeSiCrNi and FeMnSiCrNiCe alloys ...
Vinícius Fernandes de Souza   +4 more
doaj   +1 more source

Electrocatalytic Oxidation Study of Theophylline on a Copper Nanoparticles-Modified, Carbon Paste Electrode Based on Cyclic Voltammetry [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2020
In this study, the Cu nanoparticles were prepared by reducing CuSO4. These particles were used in making copper nanoparticles modified carbon paste electrode (nano-CPE).
Fateme Ghaemi-Amiri   +3 more
doaj   +1 more source

High-temperature cyclic oxidation and microstructural behavior of CoMoCrSi-based composite coatings with Al2O3 and YSZ on T91 steel

open access: yesJournal of Alloys and Metallurgical Systems
This investigation focuses on the cyclic oxidation behaviour and microstructural evolution of Cobalt-Molybdenum-Chromium-Silicon coatings reinforced with alumina and yttria stabilised zirconia (YSZ) deposited on T91 steel by the atmospheric plasma ...
Rakshith Kumar Shetty   +4 more
doaj   +1 more source

Effect of Y-La Addition on Interfacial Reaction and Cyclic Oxidation Behavior of Nickel-based Single Crystal Superalloy

open access: yesJournal of Aeronautical Materials, 2018
Y-La was added into the second generation of nickel base single crystal superalloy and two kinds of alloy castings with Y-La content of 5.26 × 10–4%(mass fraction, ) Y + 6.05 × 10–4% La and 47.64 × 10–4% Y + 69.09 × 10–4% La were obtained after ...
SHANG Genfeng, LIAO Jinfa, WANG Hang
doaj   +1 more source

Effect of Cycle Frequency on High Temperature Oxidation Behavior of Alumina-forming Coatings Used for Industrial Gas Turbine Blades [PDF]

open access: yes, 2004
Oxidation kinetics of platinum modified aluminide and overlay coatings on nickel base superalloys were investigated. Isothermal oxidation tests were carried out at 1050°C in synthetic air. Cyclic oxidation tests were performed with 2 cycle frequencies :
Monceau, Daniel   +2 more
core   +2 more sources

The influence of cyclic creep on the long-term oxidation behavior of a directionally-solidified nickel-based superalloy

open access: yesJournal of Materials Research and Technology
This work investigates the effect of cyclic creep on the long-term oxidation of a directionally-solidified nickel-based superalloy DZ445 up to 1800 h. The stress application of cyclic creep refines the oxides, increases the oxidation weight gain, reduces
Congjiang Zhang   +10 more
doaj   +1 more source

A combined "electrochemical-frustrated Lewis pair" approach to hydrogen activation: surface catalytic effects at platinum electrodes [PDF]

open access: yes, 2014
Herein, we extend our “combined electrochemical–frustrated Lewis pair” approach to include Pt electrode surfaces for the first time. We found that the voltammetric response of an electrochemical–frustrated Lewis pair (FLP) system involving the B(C6F5)3 ...
Ashley   +48 more
core   +2 more sources

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

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