Results 41 to 50 of about 337,426 (287)

Sprite Durations Measured With a Neuromorphic Sensor

open access: yesGeophysical Research Letters
Neuromorphic sensors have inherently‐fast speeds and low data rates, which potentially make them ideal for the observation of transient sources, such as lightning and sprites. Particularly, for remote observations.
B. Smith   +6 more
doaj   +1 more source

Generalization of Child-Langmuir Law for Non-Zero Injection Velocities in a Planar Diode

open access: yes, 2004
The Child-Langmuir law relates the voltage applied across a planar diode to the saturation value J_CL of current density that can be transmitted through it in case the injection velocity of electrons into the diode is zero.
Debabrata Biswas   +4 more
core   +1 more source

Kelvin Probe Force Microscopy in Bionanotechnology: Current Advances and Future Perspectives

open access: yesAdvanced Materials, EarlyView.
Kelvin probe force microscopy (KPFM) enables the nanoscale mapping of electrostatic surface potentials. While widely applied in materials science, its use in biological systems remains emerging. This review presents recent advances in KPFM applied to biological samples and provides a critical perspective on current limitations and future directions for
Ehsan Rahimi   +4 more
wiley   +1 more source

Removal of Geosmin from Water Using Modified Wood Waste Powder: An Eco-Friendly, Cost-Effective, and Reusable Approach [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering
The presence of geosmin (GSM) in water has damaged the product's reputation and led to customer distrust. This compound and its metabolites have posed various health challenges during water treatment.
Maryam Jajarmi   +2 more
doaj   +1 more source

Adsorption of ammonium, nitrite, and nitrate onto rice husk biochar for nitrogen removal

open access: yesHo Chi Minh City Open University Journal of Science - Engineering and Technology, 2021
This study aims to investigate the adsorption capacity of ammonium NH4+, nitrite NO2- and nitrate NO3- onto rice husk biochar (RHB) obtained from 550 °C pyrolysis temperature in the context of using low-cost absorbent for recirculating aquaculture system
Vo Thi Minh Thao   +8 more
doaj   +1 more source

Ram-wake effects on plasma current collection of the PIX 2 Langmuir probe [PDF]

open access: yes, 1985
The Plasma Interaction Experiment 2 (PIX 2) Langmuir probe readings of the same polar magnetospheric regions taken on consecutive orbits showed occasional apparent densities as much as 10 times lower than the average, although each pass clearly showed ...
Ferguson, D. C.
core   +1 more source

Phase Behaviour of Amphiphilic Monolayers: Theory and Simulation

open access: yes, 2001
Coarse grained models of monolayers of amphiphiles (Langmuir monolayers) have been studied theoretically and by computer simulations. We discuss some of the insights obtained with this approach, and present new simulation results which show that ...
Bandyopadhyay S   +15 more
core   +2 more sources

Spin‐Split Edge States in Metal‐Supported Graphene Nanoislands Obtained by CVD

open access: yesAdvanced Materials, EarlyView.
Combining STM measurements and ab‐initio calculations, we show that zig‐zag edges in graphene nanoislands grown on Ni(111) by CVD retrieve their spin‐polarized edge states after intercalation of a few monolayers of Au. ABSTRACT Spin‐split states localized on zigzag edges have been predicted for different free‐standing graphene nanostructures.
Michele Gastaldo   +6 more
wiley   +1 more source

Sorption of cd (II) ions by chitosan modified peanut shell biochar from aqueous solution [PDF]

open access: yesAdvances in Environmental Technology, 2019
In this paper, biochar was prepared from peanut shells, and then the pristine biochar (PBc) was modified by chitosan (CBc). The characteristics of the absorbents were investigated using infrared spectroscopy (FTIR), scanning electron microscopy (SEM ...
Hadiseh Shabani   +2 more
doaj   +1 more source

Sorption of copper(II) ions from aqueous solution by activated carbon BAU-A and coal sorbent MIU-S. The relationship between the structure of sorbents and their sorption properties

open access: yesWater Science and Technology, 2022
The sorption of copper(II) ions in a wide range of pH by two Russian carbon sorbents BAU-A and MIU-S was studied. Sorbents varied in structure, surface area, pH of the point of zero charge (pHZPC), and graphitization degree.
О. D. Linnikov   +4 more
doaj   +1 more source

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