Results 51 to 60 of about 14,452,135 (383)

Optimum parameters extraction of proton exchange membrane fuel cells using Fractional‐Order Whale Optimization Algorithm

open access: yesEnergy Science & Engineering, 2022
This study proposes a novel metaheuristic‐based technique for optimum parameters' estimation of the proton exchange membrane fuel cells (PEMFCs). To provide better results with more reliability and accuracy, a Fractional Order‐based design of the Whale ...
Xiaohui Ren, Mahdiyeh Eslami
doaj   +1 more source

Magnetic Order and Symmetry in the 2D Semiconductor CrSBr. [PDF]

open access: yesNano letters (Print), 2020
The advent of two-dimensional (2D) magnets offers unprecedented control over electrons and spins. A key factor in determining exchange coupling and magnetic order is symmetry.
Kihong Lee   +9 more
semanticscholar   +1 more source

Influence of surface roughness and deposition order on exchange bias in bilayer structures NiFe/IrMn

open access: yesEPJ Web of Conferences, 2014
Using ferromagnetic resonance (FMR) method, magnetic properties of bilayer structures consisting of ferromagnetic (F, Ni80Fe20) and antiferromagnetic (AF, Ir25Mn75) layers with alternative order of F and AF deposition were studied.
Shanova E. I.   +2 more
doaj   +1 more source

The effect of macroeconomic variables on exchange rate: Evidence from Ghana

open access: yesCogent Economics & Finance, 2020
The study examined the effect of macroeconomic variables on exchange rate in Ghana using a multivariate modeling technique of the Vector Autoregression (VAR) and focusing on impact of broad money supply (M2), lending rate, inflation and real GDP on ...
Samuel Antwi   +3 more
doaj   +1 more source

Economics and Economic Order of Societies*

open access: yesStudia i Materiały, 2021
Departing from the distinction proposed by J. Buchanan between thinking in economics in terms of the theory of choice and analysis in categories of exchange and coordination, we claim that the Hayekian concept of economic order has a significant ...
Zbigniew Hockuba
doaj   +1 more source

Effects of ring exchange interaction on the Neel phase of two-dimensional, spatially anisotropic, frustrated Heisenberg quantum antiferromagnet

open access: yes, 2012
Higher order quantum effects on the magnetic phase diagram induced by four-spin ring exchange on plaquettes are investigated for a two-dimensional quantum antiferromagnet with S=1/2. Spatial anisotropy and frustration are allowed for.
Furton, Douglas   +2 more
core   +1 more source

Evolutionary interplay between viruses and R‐loops

open access: yesFEBS Letters, EarlyView.
Viruses interact with specialized nucleic acid structures called R‐loops to influence host transcription, epigenetic states, latency, and immune evasion. This Perspective examines the roles of R‐loops in viral replication, integration, and silencing, and how viruses co‐opt or avoid these structures.
Zsolt Karányi   +4 more
wiley   +1 more source

Higher-order co-moments in asset pricing on the stock exchange in Brazil

open access: yesGEPROS: Gestão da Produção, Operações e Sistemas, 2015
This study seeks to identify the behavior of systemic asymmetry (coskewness) and systemic kurtosis (cokurtosis) in asset pricing on the Brazilian stock exchange (in BM&F Bovespa).
Paulo Vitor Jordão da Gama Silva   +2 more
doaj   +1 more source

Experimental study of order and constant rate of chlorine removal reaction using ion exchange resin

open access: yesApplied Water Science, 2023
In this research, a strong anionic resin was prepared to remove chloride ions. This study was performed in a laboratory pilot to evaluate effective parameters such as temperature, amine flow rate, pH, chloride ion concentration and concentration of resin
Farshad Farahbod
doaj   +1 more source

Structural dynamics of the plant hormone receptor ETR1 in a native‐like membrane environment

open access: yesFEBS Letters, EarlyView.
The present study unveils the structural and signaling dynamics of ETR1, a key plant ethylene receptor. Using an optimized nanodisc system and solution NMR, we captured full‐length ETR1 in a native‐like membrane environment. Our findings reveal dynamic domain uncoupling and Cu(I)‐induced rigidification, providing the first evidence of metal‐triggered ...
Moritz Lemke   +2 more
wiley   +1 more source

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