The dynamical behavior of an array of microelectrodes is investigated under controlled current conditions during CO electrooxidation, a bistable electrochemical reaction with an S-shaped negative differential resistance (S-NDR) current-potential curve. Under these conditions, the total current constitutes a globally conserved quantity, thus coupling all microelectrodes globally. Upon increasing the total current, the microelectrodes activate one by one, with a single microelectrode being on its intermediate S-NDR current branch and the other ones being either on their passive or their active branches. When a few coupled microelectrodes are activated, the electrochemical system exhibits spontaneous potential oscillations. Mathematical analysis shows that oscillations arise already in a two group approximation of the dynamics, the two groups consisting of 1 electrode and n - 1 electrodes with n ≥ 3, respectively, with each group being described by a single evolution equation. In this minimal representation, oscillations occur when the single electrode is on the intermediate branch and the larger group is on the active branch.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1063/1.5022475 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Projecting the global potential distribution of nine Rhododendron Subgenus Hymenanthes species under different climate change scenarios.
Sci Rep
January 2025
College of Agriculture, Guizhou University, Guiyang, 550025, People's Republic of China.
As one of China's most treasured traditional flowers, Rhododendron Subgen. Hymenanthes is renowned worldwide for its evergreen foliage, vibrant flowers, and significant ornamental, landscaping, and economic value. However, climate change poses a serious threat to its future, leading to population declines and endangerment of some species.
View Article and Find Full Text PDFIndian Cryogenebank Conserving Diverse Plant Genetic Resources for the Last Three Decades: Achievements and Way Forward.
Cryobiology
January 2025
ICAR-National Bureau of Plant Genetic Resources, New Delhi-110 012 INDIA.
Ex situ conservation of plant genetic resources (PGR) plays a crucial role in sustainable growth and development, as highlighted by the Global Strategy for Plant Conservation (GSPC). Seed genebanks, a key component of ex situ conservation, have been instrumental in preserving plant diversity. However, challenges arise with the conservation of non-orthodox (recalcitrant and intermediate) seeds and vegetative tissues, which are not amenable to storage in traditional genebanks at temperatures of -20°C.
View Article and Find Full Text PDFThe biodiversity of ice-free Antarctica database.
Ecology
January 2025
Securing Antarctica's Environmental Future, School of Biological Sciences, Monash University, Melbourne, Victoria, Australia.
Antarctica is one of Earth's most untouched, inhospitable, and poorly known regions. Although knowledge of its biodiversity has increased over recent decades, a diverse, wide-ranging, and spatially explicit compilation of the biodiversity that inhabits Antarctica's permanently ice-free areas is unavailable. This absence hinders both Antarctic biodiversity research and the integration of Antarctica in global biodiversity-related studies.
View Article and Find Full Text PDFOn August 24, 2023, Japan controversially decided to discharge nuclear wastewater from the Fukushima Daiichi Nuclear Power Plant into the ocean, initiating intense domestic and global debates. This study employs a mixed-method approach, integrating quantitative evolutionary game theory and qualitative data analysis to explore the strategic dynamics among Japan, other nations, and the Japan Fisheries Association regarding this decision. The data includes international environmental reports and economic statistics, served as the basis for simulating decision-making processes under various legal, economic, and environmental pressures.
View Article and Find Full Text PDFThe diffusible signaling factor family in microbial signaling: a current perspective.
Crit Rev Microbiol
January 2025
Oral Microbiology, Bristol Dental School, University of Bristol, United Kingdom.
This review discusses the chemical properties, synthesis and detection, and biological functions of a molecular group of cis-2-unsaturated fatty acids, containing fatty acid carbon chains of various lengths and cis double-bond configurations, known as the diffusible signaling factor family (DSFF). Early postulation of the conserved nature of the DSFF among Gram-negative bacteria have now been challenged by the latest evidences that unraveled their presence in a various other distinct microorganisms. Over the last decade, a significant depth and breadth of understanding has been made on the multifaceted functions of DSFFs among bacteria, and their interactions with evolutionarily divergent fungi, plants insects and small animals.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!