Results 21 to 30 of about 5,160 (260)

Numerical Analysis of Flow in U-Type Solid Oxide Fuel Cell Stacks

open access: yesEnergies
Numerical analysis of a U-type solid oxide fuel cell stack was performed using computational fluid dynamics to investigate the effects of stack capacities and fuel/air utilization rates on the internal flow uniformity.
Hao Yuan Yin   +5 more
doaj   +1 more source

Downgrade power allocation for multi-fuel cell system (MFCS) based on minimum hydrogen consumption

open access: yesEnergy Reports, 2022
At present, multi-fuel cell system (MFCS) is used to meet the high-power requirement, when a single stack fuel cell system is not sufficient. For the issue of non-optimal solutions in the low power range of multi-stack systems, the scheme of downgrade ...
YiFan Liang   +3 more
doaj   +1 more source

RoundMi: A quantitative method to analyze mitochondrial morphology in mitotic cells

open access: yesFEBS Open Bio, EarlyView.
RoundMi is a workflow for rapid analysis of mitochondrial morphology in mitotic cells. By combining adaptive preprocessing with automated segmentation and quantification, it enables accurate measurements from single focal plane images, reducing acquisition time and computational demands while remaining compatible with high‐throughput fixed and live ...
Elmira Parvindokht Bararpour   +2 more
wiley   +1 more source

CV and EIS Study of Hydrogen Fuel Cell Durability in Automotive Applications

open access: yesInternational Journal of Electrochemical Science, 2013
The purpose of this paper was to investigate the main issues of the hydrogen fuel cell durability in relation to a possible application in the transportation sector. The experimental study was effected on a 500W Polymeric Electrolyte Membrane (PEM) stack,
Fortunato Migliardini, Pasquale Corbo
doaj   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

open access: yesAdvanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Study on architecture and control technology of multi-stack fuel cell system for rail transit

open access: yes机车电传动, 2023
To satisfy the high-power application demands of rail transit vehicles, an architecture and control method of a multi-stack fuel cell system specifically designed for rail transit was proposed. Firstly, the topology of the multi-stack system was designed
LIU Baibo   +3 more
doaj  

Multilayer Self‐Limiting Electrospray Deposition via Stepped Voltage Bias

open access: yesAdvanced Engineering Materials, EarlyView.
Self‐limiting electrospray deposition (SLED) uses a high voltage to generate and deposit a charged payload on a target surface. The coating retains its charge, repelling newly arriving material. SLED thickness can be decreased by applying a secondary bias to the target.
Madhuri Deb   +3 more
wiley   +1 more source

Fuel starvation in automotive PEMFC stacks: stack current and bipolar plate resistance

open access: yesJPhys Energy
Fuel cells are a viable option to reduce CO _2 emissions of the heavy-duty transportation sector. However, under certain operation conditions, individual cells in the fuel cell stack may suffer from an undersupply of hydrogen, called fuel gross ...
Jens Nissen   +4 more
doaj   +1 more source

Chemically Fueled Systems Chemistry Across Length Scales

open access: yesAdvanced Functional Materials, EarlyView.
Chemically fueled reaction cycles regulate processes through single and multiple catalytic sites on the molecular and assembly scale. This gives rise to unique kinetically controlled properties/functions like spatio‐temporal catalysis, oscillations, optical properties, and perform work.
Brigitte A. K. Kriebisch, Job Boekhoven
wiley   +1 more source

Bismuth‐Based Photocatalysts for Water Remediation: Design Strategies, Mechanisms, and Challenges

open access: yesAdvanced Functional Materials, EarlyView.
This review highlights representative design strategies for bismuth‐based semiconductor photocatalysts in solar‐driven water purification. Emphasis is placed on electronic structure regulation, oxygen‐vacancy engineering, and interfacial coupling to enable efficient full‐spectrum light utilization, improved charge separation, and selective oxidation in
Shan Liu   +9 more
wiley   +1 more source

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