Results 21 to 30 of about 178,274 (267)

Stratifying Quotient Stacks and Moduli Stacks [PDF]

open access: yes, 2018
Recent results in geometric invariant theory (GIT) for non-reductive linear algebraic group actions allow us to stratify quotient stacks of the form [X/H], where X is a projective scheme and H is a linear algebraic group with internally graded unipotent radical acting linearly on X, in such a way that each stratum [S/H] has a geometric quotient S/H ...
Berczi, G, Hoskins, V, Kirwan, F
openaire   +3 more sources

Design, Development and Testing of a Monitoring System for the Study of Proton Exchange Fuel Cells and Stacks

open access: yesSensors, 2023
This article is about the design, development and validation of a new monitoring architecture for individual cells and stacks to facilitate the study of proton exchange fuel cells.
Milena L. Zambrano H   +5 more
doaj   +1 more source

Effect of Cell Size on the Performance and Temperature Distribution of Molten Carbonate Fuel Cells

open access: yesEnergies, 2020
Molten carbonate fuel cells (MCFCs) are high-operating-temperature fuel cells with high efficiency and fuel diversity. Electrochemical reactions in MCFCs are exothermic.
Jae-Hyeong Yu, Chang-Whan Lee
doaj   +1 more source

INVESTIGATION OF THE INFLUENCE OF INFORMATION SECURITY CELL STACK MATERIAL PARAMETERS ON ITS RELIABILITY

open access: yesИзмерение, мониторинг, управление, контроль, 2021
Background. Printed circuit boards of modern analog, digital and digital-analog electronic devices of medium complexity and higher have a base in the form of a stack-a set of layers for various purposes, which are subsequently pressed into a single ...
P.A. Maksimov   +2 more
doaj   +1 more source

LaNi0.6Co0.4−xFexO3−δ as Air-Side Contact Material for La0.3Ca0.7Fe0.7Cr0.3O3−δ Reversible Solid Oxide Fuel Cell Electrodes

open access: yesCrystals, 2022
The goal of the current work was to identify an air-side-optimized contact material for La0.3Ca0.7Fe0.7Cr0.3O3−δ (LCFCr) electrodes and a Crofer22APU interconnect for use in reversible solid oxide fuel cells (RSOFCs).
Kalpana Singh   +4 more
doaj   +1 more source

Agentic AI in Cloud-Based Credit Card Fraud Detection: Towards Autonomous Risk Mitigation

open access: yesITEGAM-JETIA
Credit card fraud (CCF) still remains an ongoing concern for financial institutions because to the huge disparity between genuine and fraudulent transactions, as well as the ever-changing behavior of fraudsters. This paper proposes a cloud-based Agentic
Sushil Prabhu Prabhakaran
doaj   +1 more source

Experimental Investigation of a Solid Oxide Fuel Cell Stack using Direct Reforming Natural Gas [PDF]

open access: yesHydrogen, Fuel Cell & Energy Storage, 2017
In this study, a solid oxide fuel cell (SOFC) stack has been successfully fabricated and tested by using direct natural gas. The main objective of this research was to achieve optimal long-term performance of the SOFC stack without carbon deposition by ...
Morteza Torabi   +6 more
doaj   +1 more source

Emission Characteristics of Polychlorinated Dibenzo-p-Dioxins/Dibenzofurans (PCDD/DFs) in Commercial Bio-SRF and SRF Incineration Plants

open access: yesEnergies, 2022
Incineration plants using solid refused fuel (SRF) should control their air pollution materials to minimize environmental impact. This study evaluated the emission of polychlorinated dibenzo-p-dioxin/dibenzofurans (PCDD/DFs) congener patterns in seven ...
Jun-Ik Son   +6 more
doaj   +1 more source

Advanced online fuel cell stack water management strategies for fuel cell stacks in vehicle powertrain control

open access: yesFrontiers in Energy Research
Effective water management is crucial for the optimal performance and durability of proton exchange membrane fuel cells (PEMFCs) in automotive applications.
Yu Duan   +6 more
doaj   +1 more source

MOTIVIC INVARIANTS OF ARTIN STACKS AND 'STACK FUNCTIONS' [PDF]

open access: yesThe Quarterly Journal of Mathematics, 2007
An invariant I of quasiprojective K-varieties X with values in a commutative ring R is "motivic" if I(X)= I(Y)+I(X\Y) for Y closed in X, and I(X x Y)=I(X)I(Y). Examples include Euler characteristics chi and virtual Poincare and Hodge polynomials. We first define a unique extension I' of I to finite type Artin K-stacks F, which is motivic and satisfies ...
openaire   +2 more sources

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