Results 21 to 30 of about 706,826 (277)

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

Theoretical Performance Analysis of Inverted P3HT: PCBM Based Bulk Hetero-Junction Organic Solar Cells through Simulation

Advances in Materials Science and Engineering, 2023
In this study, the role of active layer thickness, hole transport layer thickness, and electron mobility on the performance of P3HT: PCBM-based inverted organic solar cells has been investigated.
Murad Jemal Husen, Fekadu Gochole Aga, Solomon Tiruneh Dibaba   +2 more
doaj   +1 more source

Using ground-penetrating radar, topography and classification of vegetation to model the sediment and active layer thickness in a periglacial lake catchment, western Greenland [PDF]

Earth System Science Data, 2016
The geometries of a catchment constitute the basis for distributed physically based numerical modeling of different geoscientific disciplines. In this paper results from ground-penetrating radar (GPR) measurements, in terms of a 3-D model of total ...
J. Petrone, G. Sohlenius, E. Johansson, T. Lindborg, J.-O. Näslund, M. Strömgren, L. Brydsten   +6 more
doaj   +1 more source

Soil moisture redistribution and its effect on inter-annual active layer temperature and thickness variations in a dry loess terrace in Adventdalen, Svalbard [PDF]

The Cryosphere, 2017
High-resolution field data for the period 2000–2014 consisting of active layer and permafrost temperature, active layer soil moisture, and thaw depth progression from the UNISCALM research site in Adventdalen, Svalbard, is combined with a physically ...
C. Schuh, A. Frampton, H. H. Christiansen   +2 more
doaj   +1 more source

Transition from a Subaerial to a Subnival Permafrost Temperature Regime Following Increased Snow Cover (Livingston Island, Maritime Antarctic)

Atmosphere, 2020
The Antarctic Peninsula (AP) region has been one of the regions on Earth with strongest warming since 1950. However, the northwest of the AP showed a cooling from 2000 to 2015, which had local consequences with an increase in snow accumulation and a ...
Miguel Ramos, Gonçalo Vieira, Miguel Angel de Pablo, Antonio Molina, Juan Javier Jimenez   +4 more
doaj   +1 more source

Estimating Permafrost Active Layer Thickness (ALT) Biogeography over the Arctic Tundra

ECRS 2023, 2023
The geospatial model here presented estimates the permafrost active layer thickness (ALT) over the entire Arctic in the last 20 years, and it is based on the spatial and temporal oscillations measured by satellite-based essential variables associated with the thermal state of permafrost. The model integrates the climate and soil components, such as the
Emiliana Valentini, Marco Salvadore, Serena Sapio, Roberto Salzano, Giovanni Bormidoni, Andrea Taramelli, Rosamaria Salvatori   +6 more
openaire   +3 more sources

The Influence of ZnO Layer Thickness on the Performance and Electrical Bias Stress Instality in ZnO Thin Film Transistors [PDF]

, 2020
University of Buea supported the first author during the writing of this manuscript Open access articleThin Film Transistors (TFTs) are the active elements for future large area electronic applications, in which low cost, low temperature processes and
Cross, R. B. M., Mih, T. A., Ngwashi, D. K.   +2 more
core   +2 more sources

Spatial differentiation and influencing factors of active layer thickness in the Da Hinggan Ling Prefecture

Frontiers in Earth Science, 2023
Active layer thickness (ALT) of permafrost changes significantly under the combined influence of human activities and climate warming, which has a significant impact on the ecological environment, hydrology, and engineering construction in cold regions ...
Daqing Zhan, Daqing Zhan, Miao Li, Miao Li, Yang Xiao, Yang Xiao, Haoran Man, Haoran Man, Shuying Zang, Shuying Zang   +9 more
doaj   +1 more source

Regionalized active layer thickness trends from nonlinear baseflow recession

, 2023
Thawing of permanently frozen ground (permafrost) has increased in recent decades with negative implications for human and non-human adaptation to climate change. Impacts include reduced ground stability, increased transportation risk, and changes in water availability.
Matthew G Cooper, Tian Zhou, Katrina E Bennett, W Robert Bolton, Ethan T Coon, Sean W Fleming, Joel C Rowland, Jon Schwenk   +7 more
openaire   +1 more source

Casimir stresses in active nematic films

, 2019
We calculate the Casimir stresses in a thin layer of active fluid with nematic order. By using a stochastic hydrodynamic approach for an active fluid layer of finite thickness L, we generalize the Casimir stress for nematic liquid crystals in thermal ...
Basu, A., Joanny, J., Jülicher, F., Prost, J.   +3 more
core   +4 more sources