Results 21 to 30 of about 217,901 (291)

Fluid transport in a thick layer above an active ciliated surface

Biophysical Journal, 1980
The discrete cilia approach is employed to describe the flow field above an active ciliated surface in a layer of finite depth. The infinite-size cilia surface model predicts a uniform flow above the cilia surface. Modifications as a result of a finitely extending cilia surface inside a finite-size dish predict a backward parabolic profile above an ...
Liron, N., Meyer, F.A.
openaire   +3 more sources

Calculation of the Henry’s Constant and the Thickness of the Equilibrium Adsorption Layer of Radon in the Layer-by-Layer Measurement of the Sorbent Activity

Energies, 2022
The radioactive gas radon is ubiquitous in the environment and is a major contributor to the human inhalation dose. It is the second leading cause of lung cancer after smoking. Radon concentrations are particularly high in the air of radon-hazardous facilities—uranium mines and radioactive waste repositories containing radium.
Eldar P. Magomedbekov, Aleksei O. Merkushkin, Veronika S. Pokalchuk, Alexander V. Obruchikov, Ilia Yu. Lukiyanchikov, Alexander S. Chepurnov, Elena A. Vanina   +6 more
openaire   +2 more sources

Active layer depths at a thermokarst lake in the Mackenzie Delta and on Tuktoyaktuk Island, Northwest Territories, Canada

, 2022
This dataset contains Permafrost active layer depths taken in September 2021 at 28 locations on Tuktoyaktuk Island (Beaufort Sea) as well as next to a small thermokarst lake (“Lake 3”) between the villages of Tuktoyaktuk and Inuvik, Northwest Territories,
Boike, Julia, Overduin, Pier Paul, Ryberg, Trond   +2 more
core   +1 more source

Optically Active Spin Defects in Few-Layer Thick Hexagonal Boron Nitride

Physical Review Letters, 2023
Optically-active spin defects in hexagonal boron nitride (hBN) are promising quantum systems for the design of two-dimensional quantum sensing units offering optimal proximity to the sample being probed. In this work, we first demonstrate that the electron spin resonance frequencies of boron vacancy centres (V$_\text{B}^-$) can be detected optically in
Durand, Alrik, Clua-Provost, Tristan, Fabre, Florentin, Kumar, Pawan, Li, Jiahan, Edgar, James H., Udvarhelyi, Péter, Gali, Adam, Marie, Xavier, Robert, Cédric, Gérard, Jean-Michel, Gil, Bernard, Cassabois, Guillaume, Jacques, Vincent   +13 more
openaire   +5 more sources

Active-layer thickness estimation from X-band SAR backscatter intensity [PDF]

The Cryosphere, 2017
The active layer above the permafrost, which seasonally thaws during summer, is an important parameter for monitoring the state of permafrost. Its thickness is typically measured locally, but a range of methods which utilize information from satellite ...
B. Widhalm, A. Bartsch, M. Leibman, A. Khomutov   +3 more
doaj   +1 more source

Effect of PbS Film Thickness on the Performance of Colloidal Quantum Dot Solar Cells [PDF]

Journal of Nanostructures, 2013
Colloidal quantum dots offer broad tuning of semiconductor band structure via the quantum size effect. In this paper, we present a detailed investigation on the influence of the thickness of colloidal lead sulfide (PbS) nanocrystals (active layer) to the
M. Mazloum-Ardakani, M. Yavari, A. R. Khoshroo   +2 more
doaj   +1 more source

Oxygen absorption data of multilayer oxygen scavenger-polyester films with different layouts

Data in Brief, 2018
Oxygen absorption measurements in continuous regard active multilayer films with different layouts, all incorporating a PET/Oxygen scavenger (OS) layer, operating as active O2 barrier, inserted between two PET inert layers, acting as passive O2 barrier ...
A. Apicella, P. Scarfato, L. Di Maio, L. Incarnato   +3 more
doaj   +1 more source

Simulation study on the active layer thickness and the interface of a-IGZO-TFT with double active layers

Frontiers of Optoelectronics, 2014
In this paper, ATLAS 2D device simulator of SILVACO was used for device simulation of inverted- staggered thin film transistor using amorphous indium gallium zinc oxide as active layer (a-IGZO-TFT) with double active layers, based on the density of states (DOS) model of amorphous material.
Xiaoyue Li, Sheng Yin, Dong Xu
openaire   +1 more source

Localized Vegetation, Soil Moisture, and Ice Content Offset Permafrost Degradation under Climate Warming

Geosciences, 2023
Rapid Arctic warming is expected to result in widespread permafrost degradation. However, observations show that site-specific conditions (vegetation and soils) may offset the reaction of permafrost to climate change.
Gleb E. Oblogov, Alexander A. Vasiliev, Dmitry A. Streletskiy, Nikolay I. Shiklomanov, Kelsey E. Nyland   +4 more
doaj   +1 more source

Hall generator with variable active-layer thickness

Electronics Letters, 1967
The principle of operation of a new semiconductor device, a Hall generator with a variable-thickness active layer, is discussed. Such a device results from the location of a p-n junction in close proximity to the surface of a semiconductor plate, thus isolating the thin active layer of the Hall generator from the base. Two additional electrodes, one on
T. Janicki, A. Kobus
openaire   +1 more source