Results 71 to 80 of about 867,810 (298)

Dynamic Testing of Cold Gas Sprayed Bipolar Plates–Porous Transport Layer Coating System in Proton Exchange Membrane Water Electrolysis

open access: yesAdvanced Engineering Materials, EarlyView.
Through direct application of porous transport layer (PTL) on the bipolar plate (BPP) with thermal spraying, the interfacial contact resistance is improved. With the cold gas sprayed BPP–PTL coating system, a proton exchange membrane water electrolysis cell with a cell voltage of Ucell = 1.9 V can be operated up to i = 2.5 A/cm2 in a dynamic mode ...
Kirsten Bobzin   +5 more
wiley   +1 more source

Base drive for paralleled inverter systems [PDF]

open access: yes, 1980
In a paralleled inverter system, a positive feedback current derived from the total current from all of the modules of the inverter system is applied to the base drive of each of the power transistors of all modules, thereby to provide all modules ...
Nagano, S.
core   +1 more source

Improving the photovoltaic response of a poly(3-octylthiophene)/n-Si heterojunction by incorporating double-walled carbon nanotubes [PDF]

open access: yes, 2007
Poly(3-octylthiophene)/n-Si heterojunction solar cells were studied with and without incorporation of double-walled carbon nanotubes (DWCNs) in the polymer layer. The performance of the device improves significantly by the incorporation of DWCNs.
Flahaut, Emmanuel   +3 more
core   +3 more sources

Dielectric Barrier Discharge Plasma Deoxidation of Natively Oxide Layer of Copper Powders in a Fluidized Bed

open access: yesAdvanced Engineering Materials, EarlyView.
This paper presents a novel approach to reducing oxide layers on metal powders using low‐temperature hydrogen dielectric barrier discharge plasmas at atmospheric pressure. Unlike conventional hydrogen‐plasma reductions, the powders do not contact the plasma directly.
Shukang Zhang   +3 more
wiley   +1 more source

Influence of short circuit conditions on IGBT short circuit current in motor drives [PDF]

open access: yes2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC), 2011
Protecting the IGBTs against short circuit conditions is a critical aspect of the Industrial motor drive design. The SC (short circuit) conditions can occur in a variety of ways in an industrial environment. The SC applied across the motor drive terminals result in a different fault current profile than a SC that happens at the motor terminals or ...
Vijay Bolloju, Jun Yang
openaire   +1 more source

Efficient first-principles calculation of phonon assisted photocurrent in large-scale solar cell devices [PDF]

open access: yes, 2018
We present a straightforward and computationally cheap method to obtain the phonon-assisted photocurrent in large-scale devices from first-principles transport calculations.
Brandbyge, Mads   +4 more
core   +2 more sources

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

open access: yesAdvanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund   +6 more
wiley   +1 more source

The Analysis of Electrodynamic Forces in Residual Current Circuit Breakers Primary Current Paths During Short-Circuit Tests

open access: yesEnergies
This paper deals with the effect of electrodynamic forces acting on the primary current paths of residual current circuit breakers. This paper consists of a simulation part and an experimental part from the short-circuit tests performed. The experimental
Michał Szulborski   +3 more
doaj   +1 more source

Suppression of Edge Recombination in InAs/InGaAs DWELL Solar Cells

open access: yes, 2009
The InAs/InGaAs DWELL solar cell grown by MBE is a standard pin diode structure with six layers of InAs QDs embedded in InGaAs quantum wells placed within a 200-nm intrinsic GaAs region.
El-Emawy, Mohamed A.   +4 more
core   +1 more source

Bias‐Free Highly Efficient and Stable Dye‐Sensitized Photoelectrochemical Cells via Cascade Charge Transfer

open access: yesAdvanced Functional Materials, EarlyView.
A buried‐junction DSPEC design is introduced that leverages cascade charge transfer to enhance efficiency, stability, and versatility. This approach facilitates effective charge transfer and minimizes recombination losses, leading to significant improvements.
Jun‐Hyeok Park   +8 more
wiley   +1 more source

Home - About - Disclaimer - Privacy