Results 61 to 70 of about 986,728 (297)

Chitin‐Derived Carbon‐Metal Functional Materials

open access: yesAdvanced Functional Materials, EarlyView.
Functional carbon materials are synthesized from combination of biopolymer (chitin) and iron precursors. The resultant material exhibits superior surface area and adsorptive properties compared to carbon materials synthesized directly from pure chitin.
Herry Fang   +7 more
wiley   +1 more source

Auroral-arc splitting by intrusion of a new convection channel [PDF]

open access: yesAnnales Geophysicae, 1996
During a run of the Common Programme Three of the EISCAT radar the splitting of an auroral arc was observed by high time-resolution, ground-based cameras when the UHF radar beam was close to the arc.
H. U. Frey   +3 more
doaj   +1 more source

Dirac‐Source Linear X‐Ray Detection Diode

open access: yesAdvanced Functional Materials, EarlyView.
Monolayer graphene imparts near linear current‐voltage behavior to a perovskite X‐ray detection diode, contrasting with conventional diode‐like responses. Exploiting graphene's Dirac dispersion and a Schottky‐like back‐to‐back junction, the device achieves six‐orders‐of‐magnitude dark current suppression while retaining linearity over 200 V, enabling ...
Babar Shabbir   +8 more
wiley   +1 more source

Plasma transport along discrete auroral arcs and its contribution to the ionospheric plasma convection [PDF]

open access: yesAnnales Geophysicae, 2008
The role of intense high-altitude electric field (E-field) peaks for large-scale plasma convection is investigated with the help of Cluster E-field, B-field and density data.
A. Kullen   +8 more
doaj   +1 more source

CO2‐to‐CO Conversion in a Gas‐Fed, Zero‐Gap, PEM Electrolyzer Enabled by Polycations and Nitrogen‐Doped Carbon‐Supported Cobalt Nanoparticles

open access: yesAdvanced Functional Materials, EarlyView.
A gas‐fed, zero‐gap, PEM CO2 electrolyzer is realized by incorporating PDDA+ ions onto the carbonaceous Co/N‐C electrocatalyst, with gaseous H2 and CO2 fed into the anode and cathode, respectively. Operating without an aqueous electrolyte, the system sustains a peak FECO of 65.1% at 100 mA cm−2. ABSTRACT Electrochemical carbon dioxide reduction (ECO2R)
Yuen Leong Chow   +6 more
wiley   +1 more source

Memristive fingerprints of electric arcs

open access: yesCoRR, 2015
We discuss the memristive fingerprints of the hybrid Cassie-Mayr model of electric arcs. In particular, it is shown that (i) the voltage-current characteristic of the model has the pinched hysteresis nature, (ii) the voltage and current zero crossings occur at the same instants, and, (iii) when the frequency $f$ of the power supply increases, the ...
openaire   +3 more sources

Upcycling Keratin‐Based Textile Waste Into High‐Performance Hybrid Fibers Via Tuning the Interfacial Interactions

open access: yesAdvanced Functional Materials, EarlyView.
Keratin recovered from animal‐hair textile waste is fractionated and blended with cellulose to produce continuously spun hybrid fibers. Selecting the high‐molecular‐weight keratin fraction enables 30 wt.% keratin incorporation while maintaining high strength in dry and wet states.
Mian Zhai   +6 more
wiley   +1 more source

ENERGY EFFICIENCY OF INTRODUCTION OF THE SYSTEM OF THE SLAG LEVEL CONTROL ON ARC ELECTRIC STEEL­SMELTING FURNACES OF OAO «BMZ»

open access: yesЛитьë и металлургия, 2013
It is shown that foamed slag in arc electric steel-making furnaces provides decrease of powerand material-capacity of melting, increases the speed of steel melting due to more stable burning of electric arcs and enlargement of portion of the heat energy ...
A. P. Bondarjkov   +2 more
doaj  

Research of pellet electrosmelting efficiency in arc furnace under the carbon oxide post-combustion by fuel oxygen burners

open access: yesAdvanced Engineering Research, 2016
Some features of heating and melting iron-rich pellets (IRP) by the method of charging the pellets through the axial ducts of electrodes are considered. When using this system of supplying iron ore raw materials through the holes in the electrodes, loose
Victor A. Stepanov   +4 more
doaj   +1 more source

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