Measuring capacitance of various types of structures

Dulik, Miroslav; Jurečka, Stanislav

doi:10.1109/elektro.2014.6848978

Cited by 5 publications

(3 citation statements)

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“…New aDNA data indicates relatively rapid substitution rates in Y-DNA, suggesting that coalescence ages for paternal lineages have been underestimated. 23,53 Significant portions of northern Eurasia, including Beringia, probably had not been occupied by humans before the arrival of Homo sapiens. This is suggested not only by an absence of fossils and archeological remains that may be firmly assigned to other forms of Homo in places such as central Siberia, but also by the pattern of low biological productivity and extreme winter temperatures in these places.…”

Section: Modern Humans Colonize Northern Eurasia and Beringiamentioning

confidence: 99%

Beringia and the global dispersal of modern humans

Hoffecker¹,

Elias²,

O’Rourke³

et al. 2016

Evolutionary Anthropology

139

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Until recently, the settlement of the Americas seemed largely divorced from the out-of-Africa dispersal of anatomically modern humans, which began at least 50,000 years ago. Native Americans were thought to represent a small subset of the Eurasian population that migrated to the Western Hemisphere less than 15,000 years ago. Archeological discoveries since 2000 reveal, however, that Homo sapiens occupied the high-latitude region between Northeast Asia and northwest North America (that is, Beringia) before 30,000 years ago and the Last Glacial Maximum (LGM). The settlement of Beringia now appears to have been part of modern human dispersal in northern Eurasia. A 2007 model, the Beringian Standstill Hypothesis, which is based on analysis of mitochondrial DNA (mtDNA) in living people, derives Native Americans from a population that occupied Beringia during the LGM. The model suggests a parallel between ancestral Native Americans and modern human populations that retreated to refugia in other parts of the world during the arid LGM. It is supported by evidence of comparatively mild climates and rich biota in south-central Beringia at this time (30,000-15,000 years ago). These and other developments suggest that the settlement of the Americas may be integrated with the global dispersal of modern humans.

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Section: Modern Humans Colonize Northern Eurasia and Beringiamentioning

confidence: 99%

Beringia and the global dispersal of modern humans

Hoffecker¹,

Elias²,

O’Rourke³

et al. 2016

Evolutionary Anthropology

139

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“…1(b)). To fully characterise the capacitance of the samples, both the charge and discharge curves were monitored [48] with a number of probe separations (e.g. 10 mm, 20 mm, 40 mm, and 50 mm).…”

Section: Experimental Methodsmentioning

confidence: 99%

Are fungi capacitors?

Szaciłowski

Beasley

Mech

et al. 2023

Preprint

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The emerging field of living technologies aims to create new functional hybrid materials in which living systems interface and interact with inanimate ones. Combining research into living technologies with emerging developments in computing architecture has enabled the generation of organic electronics from plants and slime mould. Here, we expand on this work by studying capacitive properties of a substrate colonised by mycelium of grey oyster fungi,Pleurotus ostreatus. Capacitors play a fundamental role in traditional analogue and digital electronic systems and have a range of uses including sensing, energy storage and filter circuits. Mycelium has the potential to be used as an organic replacement for traditional capacitor technology. Here, were show that the capacitance of mycelium is in the order of hundreds of picofarads and at the same time a voltage-dependent pseudocapacitance of the order of hundreds of microfarads. We also demonstrate that the charge density of the mycelium 'dielectric' decays rapidly with increasing distance from the source probes. This is important as it indicates that small cells of mycelium could be used as a charge carrier or storage medium.

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“…1(b)). To fully characterise the capacitance of the samples, both the charge and discharge curves were monitored [23] with a number of probe separations (e.g. 10 mm, 20 mm, 40 mm, and 50 mm).…”

Section: Experimental Methodsmentioning

confidence: 99%

Capacitive storage in mycelium substrate

Beasley¹,

Powell²,

Adamatzky³

2020

Preprint

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The emerging field of living technologies aims to create new functional hybrid materials in which living systems interface with artificial ones. Combining research into living technologies with emerging developments in computing architecture has enabled the generation of organic electronics from plants and slime mould. Here, we expand on this work by studying capacitive properties of a substrate colonised by mycelium of grey oyster fungi, Pleurotus ostreatus. Capacitors play a fundamental role in traditional analogue and digital electronic systems and have a range of uses including sensing, energy storage and filter circuits. Mycelium has the potential to be used as an organic replacement for traditional capacitor technology. Here, were show that the capacitance of mycelium is in the order of hundreds of pico-Farads. We also demonstrate that the charge density of the mycelium 'dielectric' decays rapidly with increasing distance from the source probes. This is important as it indicates that small cells of mycelium could be used as a charge carrier or storage medium, when employed as part of an array with reasonable density.

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Measuring capacitance of various types of structures

Cited by 5 publications

References 0 publications

Beringia and the global dispersal of modern humans

Beringia and the global dispersal of modern humans

Are fungi capacitors?

Capacitive storage in mycelium substrate

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