Results 41 to 50 of about 2,215,063 (343)

Effect of ion implantation doping on electrical properties of yttria-stabilized zirconia thin films [PDF]

open access: yes, 1992
The change in conductivity of Fe and Ti implanted rf-sputtered layers of yttria-stabilized zirconia (YSZ) was studied as a function of the temperature (400–800°C) and oxygen partial pressure. In an oxidized state and in the temperature range of 400–600°C,
Burggraaf, A.J., Hassel, B.A. van
core   +3 more sources

Dielectric properties of deformed early potatoes

open access: yesResearch in Agricultural Engineering, 2008
The permittivity of potato tissue was studied during uniaxial compression of cylindrical specimens prepared from two early varieties. Both the real and the imaginary permitivity components were determined repeatedly during the loading and unloading tests.
J. Blahovec
doaj   +1 more source

Thermal evolution and sintering of chondritic planetesimals IV. Temperature dependence of heat conductivity of asteroids and meteorites

open access: yes, 2018
Understanding the compaction and differentiation of the planetesimals and protoplanets from the Asteroid Belt and the terrestrial planet region of the Solar System requires a reliable modeling of their internal thermal evolution.
Gail, Hans-Peter, Trieloff, Mario
core   +1 more source

Integration of sensors for dam water quality analysis – a prototype

open access: yesWater Science and Technology, 2021
Water consumed is stored in several water bodies in and around us, out of which dams accommodate a major portion of water. The quantity and quality monitoring of water in dams is troublesome due to their large surface area and high depths.
Lina Rose, X. Anitha Mary, C. Karthik
doaj   +1 more source

Universal infrared conductivity of graphite

open access: yes, 2010
The conductivity of graphite is analytically evaluated in the range of 0.1-1.5 eV, where the electron relaxation processes can be neglected, and the low energy excitations at the "Dirac" points are most essential. The value of conductivity calculated per
Falkovsky, L. A.
core   +1 more source

Moving in the Dark: Enlightening the Spatial Population Ecology of European Cave Salamanders

open access: yesPopulation Ecology, EarlyView.
We assessed individual interactions, movement ecology and activity patterns of a subterranean population of Speleomantes strinatii, applying spatial capture–recapture modeling to a photographic dataset of 104 individuals. ABSTRACT Space use and movement are fundamental aspects of organisms' ecology, mirroring individual fitness, behavior, and life ...
Giacomo Rosa   +2 more
wiley   +1 more source

Electrical Conductivity Protocol [PDF]

open access: yes, 2003
The purpose of this resource is to measure the conductivity of water at a freshwater hydrology site. Students calibrate and take electrical conductivity measurements using an electrical conductivity meter.
The GLOBE Program, UCAR (University Corporation for Atmospheric Research)
core  

Anisotropic conductivity of doped graphene due to short-range non-symmetric scattering

open access: yes, 2010
The conductivity of doped graphene is considered taking into account scattering by short-range nonsymmetric defects, when the longitudinal and transverse components of conductivity tensor appear to be different.
F. T. Vasko, Nye J. F.
core   +1 more source

Infection Models for Pine Wilt Disease on the Basis of Vector Behaviors

open access: yesPopulation Ecology, EarlyView.
Infection models for pine wilt disease without vector density were built to estimate the transmission coefficient of the pathogenic nematode. The models successfully simulated the annual change in the density of infected trees for four pine stands. ABSTRACT Pine wilt disease is caused by the pinewood nematode (Bursaphelenchus xylophilus Steiner et ...
Katsumi Togashi
wiley   +1 more source

Functionalization of carbon nanotube yarn by acid treatment

open access: yesInternational Journal of Smart and Nano Materials, 2014
Carbon nanotube (CNT) yarn was functionalized using sulfuric and nitric acid solutions in 3:1 volumetric ratio. Successful functionalization of CNT yarn with carboxyl and hydroxyl groups (e.g., COOH, COO–, OH, etc.) was confirmed by attenuated total ...
H.E. Misak   +4 more
doaj   +1 more source

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