Results 101 to 110 of about 16,954 (217)

Local non-equilibrium distribution of charge carriers in a phase-coherent conductor

open access: yes, 1998
We use the scattering matrix approach to derive generalized Bardeen-like formulae for the conductances between the contacts of a phase-coherent multiprobe conductor and a tunneling tip which probes its surface.
Avouris   +33 more
core   +2 more sources

Potentiometric Studies on Ion-Transport Selectivity in Charged Gold Nanotubes

open access: yesNanomaterials
Under ideal conditions, nanotubes with a fixed negative tube-wall charge will reject anions and transport-only cations. Because many proposed nanofluidic devices are optimized in this ideally cation-permselective state, it is important to know the ...
Thomas T. Volta   +2 more
doaj   +1 more source

Protolytic Reactions at Electrified TiO2 P25 Interface: Quantitative and Thermodynamic Characterization

open access: yesMolecules
Protolytic reactions on the surface of a titania photocatalyst (TiO2 P25 containing chlorine impurities) were studied using potentiometric and calorimetric acid-base titration. The impurity was removed by either washing or heat treatment.
Etelka Tombácz   +5 more
doaj   +1 more source

Self‐Powered Biomimetic Pressure Sensor Based on Mn–Ag Electrochemical Reaction for Monitoring Rehabilitation Training of Athletes

open access: yesAdvanced Science
Self‐powered pressure detection using smart wearable devices is the subject of intense research attention, which is intended to address the critical need for prolonged and uninterrupted operations.
Ziyan Yang   +8 more
doaj   +1 more source

Testing the impact of waste from anaerobic digestion (enriched with an organic component on the quality of agricultural land) [PDF]

open access: yes, 2017
Waste from anaerobic digestion is considered as a mineral fertilizer and it is usually applied to agricultural land. The aim of our attempt was to enrich this waste from anaerobic digestion (digestate) with an organic component (in our case represented ...
Bártková, Magdaléna   +3 more
core  

Improved performance of nitrate extended gate field effect transistor sensor through deposition of polymer layer at various withdrawal speeds using dip coating method

open access: yesJournal of Electrochemical Science and Engineering
In this study, a nitrate Extended Gate Field Effect Transistor (EGFET) sensor has been deposited with polyaniline (PANI) using a dip coating method by varying the withdrawal speed parameter at a range of 1 to 7 mm/s to improve the detection and ...
Nor Farhana Abdullah   +5 more
doaj   +1 more source

Zinc(II) PVC-based membrane sensor based on 5,6-benzo-4,7,13,16,21,24- hexaoxa-1,10-diazabicyclo[8,8,8]hexacos-5-ene

open access: yesJournal of the Brazilian Chemical Society, 2006
The 5,6-benzo-4,7,13,16,21,24-hexaoxa-1,10-diazabicyclo[8,8,8]hexacos-5-ene (BHDE) was used as an excellent ionophore in construction of a Zn(II) PVC-based membrane sensor.
Zamani Hassan Ali   +2 more
doaj  

Polarographic and Spectrophotometric Study of Lead Complexes with Diethanoldithiocarbamate

open access: yesJournal of the Brazilian Chemical Society, 1998
Experimental and theoretical aspects concerning the behaviour of lead-dietanoldithiocarbamate complexes in aqueous solutions were studied. The reaction occurs through complexation and formation of a yellow precipitate, which is soluble in ligand excess ...
Marques A.L.B., Chierice G.O.
doaj  

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