Results 21 to 30 of about 669,973 (330)

Hydrogen induced optically-active defects in silicon photonic nanocavities [PDF]

open access: yes, 2014
This work was supported by Era-NET NanoSci LECSIN project coordinated by F. Priolo, by the Italian Ministry of University and Research, FIRB contract No. RBAP06L4S5 and by the EPSRC UKSp project.
Boninelli, S.   +10 more
core   +1 more source

Determination of Lactate by Sequential Injection Analysis Using a Fluoride Ion-selective Electrode Detector

open access: yesElectrochemistry, 2020
A combination of sequential Injection Analysis (SIA) system and the ion-selective electrode (ISE) detector is considered to be one of a very effective analytical method. Reaction of lactate with lactate oxidase produces pyruvic acid and hydrogen peroxide.
Yuichi TAKAHASHI, Takashi MASADOME
doaj   +1 more source

Turbulent transport of impurities and their effect on energy confinement [PDF]

open access: yes, 2012
By presenting linear and nonlinear gyrokinetic studies, based on a balanced neutral beam injection deuterium discharge from the DIII-D tokamak, we demonstrate that impurities alter the scaling of the transport on the charge and mass of the main species ...
Candy, J.   +3 more
core   +2 more sources

Free Radical Generation From Hydrazine Decomposition Catalyzed by Pt/SiO2 in Different Acid-Base Systems

open access: yesHe huaxue yu fangshe huaxue
Electron spin resonance spectroscopy(ESR) was used to investigate the effects of hydrogen ion concentration and hydroxide concentration in perchloric acid system and sodium hydroxide system on the state and behavior of free radicals generated by ...
LI Bin   +4 more
doaj   +1 more source

Low Mach-number collisionless electrostatic shocks and associated ion acceleration [PDF]

open access: yes, 2017
The existence and properties of low Mach-number ($M \gtrsim 1$) electrostatic collisionless shocks are investigated with a semi-analytical solution for the shock structure.
Pusztai, Istvan   +6 more
core   +2 more sources

Photosynthesis under far‐red light—evolutionary adaptations and bioengineering of light‐harvesting complexes

open access: yesFEBS Letters, EarlyView.
Phototrophs evolved light‐harvesting systems adapted for efficient photon capture in habitats enriched in far‐red radiation. A subset of eukaryotic pigment‐binding proteins can absorb far‐red photons via low‐energy chlorophyll states known as red forms.
Antonello Amelii   +8 more
wiley   +1 more source

Energy-efficient modular water purification system via concurrent freshwater and hydrogen generation using ion concentration polarization

open access: yesCommunications Materials
This study demonstrates a compact, modular platform that simultaneously generates freshwater and hydrogen gas by leveraging nanoelectrokinetic ion concentration polarization through cation-exchange membranes (CEMs).
Jihee Park   +9 more
doaj   +1 more source

pH and calcium ion release evaluation of pure and calcium hydroxide-containing Epiphany for use in retrograde filling

open access: yesJournal of Applied Oral Science, 2011
OBJECTIVE: Hydroxyl (OH-) and calcium (Ca++) ion release was evaluated in six materials: G1) Sealer 26, G2) White mineral trioxide aggregate (MTA), G3) Epiphany, G4) Epiphany + 10% calcium hydroxide (CH), G5) Epiphany + 20% CH, and G6) zinc oxide and ...
Mário Tanomaru-Filho   +3 more
doaj   +1 more source

Nonlinear, electrocatalytic swimming in the presence of salt

open access: yes, 2012
A small, bimetallic particle in a hydrogen peroxide solution can propel itself by means of an electrocatalytic reaction. The swimming is driven by a flux of ions around the particle.
Sabass, Benedikt, Seifert, Udo
core   +1 more source

An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots

open access: yesFEBS Letters, EarlyView.
This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino   +7 more
wiley   +1 more source

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