Results 61 to 70 of about 1,562,856 (294)

History and Progress of Fractional-Order Element Passive Emulators: A Review [PDF]

Radioengineering, 2020
This paper presents a state-of-the-art survey in the area of fractional-order element passive emulators adopted in circuits and systems. An overview of the different approximations used to estimate the passive element values by means of rational ...
A. Kartci, N. Herencsar, J. T. Machado, L. Brancik   +3 more
doaj  

He abundances in disc galaxies. I. Predictions from cosmological chemodynamical simulations [PDF]

, 2019
Accepted for publication in A&AWe investigate how the stellar and gas-phase He abundances evolve as a function of time within simulated star-forming disc galaxies with different star formation histories.
Kobayashi, Chiaki, Mackereth, J. Ted, Miglio, Andrea, Montalban, Josefina, Vincenzo, Fiorenzo   +4 more
core   +5 more sources

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

STRUCTURE CHARACTERIZATION OF CALCIUM DEFICIENT ELEMENT-SUBSTITUTED HYDROXYAPATITE WITH CONSTANT DOPANT RATIO OF DIFFERENT ELEMENTS

The Iraqi Journal of Agricultural science, 2020
The element-substituted calcium Deficient hydroxyapatite samples were synthesized using liquid-phase precipitation method. Different element ions (Mg+2, Zn+2, and Cu+2) were added at constant ratio (5% wt.).
Al-Sabbagh & et al.
doaj   +1 more source

Study on Stability and Elastic Properties of β-TiX (X=Nb, Ta) Alloys From First-Principles Calculations

Frontiers in Materials, 2022
In this article, the phase stability, elastic properties, and electronic structure of the β-TiX (X = Nb, Ta) alloy body-centered cubic (bcc) structure were systematically studied with the aid of first-principles calculations.
Hou Shuluo, Li Jiuxiao, Wang Yixue, Yang Dongye, Wan Zhaomei   +4 more
doaj   +1 more source

Towards an understanding of tensile deformation in Ti-based bulk metallic glass matrix composites with BCC dendrites [PDF]

, 2016
The microstructure and tension ductility of a series of Ti-based bulk metallic glass matrix composite (BMGMC) is investigated by changing content of the β stabilizing element vanadium while holding the volume fraction of dendritic phase constant.
Flores, Katharine M., Hofmann, Douglas C., Hunter, Allen, Johnson, William L., Kolodziejska, Joanna A., Kozachkov, Henry, Kranjc, Kelly, Marquis, Emmanuelle   +7 more
core   +1 more source

Experimental behavior evaluation of series and parallel connected constant phase elements [PDF]

AEU - International Journal of Electronics and Communications, 2017
Abstract Fractional-order capacitors are the core building blocks for implementing fractional-order circuits. Due to the absence of their commercial availability, they can be approximated through appropriately configured passive or active integer-order element topologies.
Tsirimokou, Georgia, Psychalinos, Costas, Elwakil, Ahmed S., Salama, Khaled N.   +3 more
openaire   +2 more sources

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

FEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang, Grace Du, Charity Yongo‐Luwawa, Angelina Lu, Brett Kinrade, Kim Munro, Karl E. Klose, William D. Lubell, Peter Davies, Shuaiqi Guo   +9 more
wiley   +1 more source

Is Unsupervised Dimensionality Reduction Sufficient to Decode the Complexities of Electrochemical Impedance Spectra?

ChemElectroChem
As electrochemical research undergoes rapid technological progression, the acquisition of substantial amounts of electrochemical impedance spectra (EIS) becomes increasingly feasible.
Aleksei Makogon, Frederic Kanoufi, Viacheslav Shkirskiy   +2 more
doaj   +1 more source

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

FEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source