Results 31 to 40 of about 706,826 (277)
Effect of PbS Film Thickness on the Performance of Colloidal Quantum Dot Solar Cells [PDF]
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 +2 more
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Oxygen absorption data of multilayer oxygen scavenger-polyester films with different layouts
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 +3 more
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Hall generator with variable active-layer thickness
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
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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 +4 more
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Recent massive expansion of wildfire and its impact on active layer over pan-Arctic permafrost
Wildfire is recognized as an increasing threat to the southern boreal forests and the permafrost beneath them, with less occurring over the cold continuous permafrost than before.
Xingru Zhu, Xiyan Xu, Gensuo Jia
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A single-layer tuneable microwave absorber using an active FSS [PDF]
An experimental single-layer active microwave absorber in described. The absorber is a planar structure based upon the topology of a Salisbury screen, but in which the conventional resistive layer is replaced by an active frequency selective surface (FSS)
Chambers, B., Tennant, A.
core +1 more source
Fluid transport in a thick layer above an active ciliated surface
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.
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Influences of forest fires on the permafrost environment: A review
In boreal and arctic regions, forest fires exert great influences on biogeochemical processes, hydrothermal dynamics of the active layer and near-surface permafrost, and subsequent nutrient cycles.
Xiao-Ying Li +10 more
doaj +1 more source
Strong light-matter coupling in bulk GaN-microcavities with double dielectric mirrors fabricated by two different methods [PDF]
Two routes for the fabrication of bulk GaN microcavities embedded between two dielectric mirrors are described, and the optical properties of the microcavities thus obtained are compared.
Bejtka, K. +11 more
core +1 more source
The Yukon–Kuskokwim (YK) Delta is a region of discontinuous permafrost in the subarctic of southwestern Alaska. Many wildfires have occurred in the YK Delta between 1971–2015, impacting vegetation cover, surface soil moisture, and the active layer ...
Roger J Michaelides +8 more
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