Results 31 to 40 of about 5,520,997 (286)

Recent massive expansion of wildfire and its impact on active layer over pan-Arctic permafrost

open access: yesEnvironmental Research Letters, 2023
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
doaj   +1 more source

Change in drag, apparent slip and optimum air layer thickness for laminar flow over an idealised superhydrophobic surface [PDF]

open access: yes, 2013
Analytic results are derived for the apparent slip length, the change in drag and the optimum air layer thickness of laminar channel and pipe flow over an idealised superhydrophobic surface, i.e. a gas layer of constant thickness retained on a wall.
Newton, M.I.   +9 more
core   +1 more source

Layer-Thickness-Dependent Work Function of MoS2 on Metal and Metal Oxide Substrates

open access: yes, 2022
Transition metal dichalcogenides, such as molybdenum disulfide (MoS2), have unique electronic and optoelectronic properties that are often altered by environmental effects, particularly substrate or contact materials.
Colleen Lattyak (13195290)   +2 more
core   +1 more source

The thickness of the calcified layer of articular cartilage [PDF]

open access: yes, 1987
The thickness of both the articular cartilage and its calcified zone were measured at 25 carefully selected points in 8 human femoral heads, and the ratio of one to the other was found to be remarkably constant for each bone.
Müller-Gerbl, Magdalena   +2 more
core   +1 more source

Non-fullerene OSC: The effects of active and electron transport layers' thickness towards 19.5% efficiency

open access: yesRevue des Énergies Renouvelables
The effects of the active layer thickness of the organic solar cells based on PM6, D18 and L8-BO materials as well as the effects of electron transport layer thickness are examined using Organic and hybrid Material Nano Simulation (Oghma) software ...
Burak Yahya Kadem, R.K. Fakher Alfahed
doaj   +1 more source

Effects of Effective Layer Thickness, Light Intensity and Electron-Hole Pair Separation Distance on The Performance of Organic Bulk Heterojunction Solar Cells [PDF]

open access: yesJournal of Optoelectronical Nanostructures
In this paper the influence of different parameters such as active layer thickness, light intensity and charge separation distance on the photocurrent-voltage, short circuit current density (Jsc) and open circuit voltage (Voc) characteristics in MEH-PPV ...
Aliasghar Ayobi
doaj   +1 more source

Influences of forest fires on the permafrost environment: A review

open access: yesAdvances in Climate Change Research, 2021
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

Permafrost, Active Layer Thickness and Soil Organic Carbon Maps over the Tibetan Plateau

open access: yes, 2019
Using recent observations of mean annual ground temperature (MAGT) at or near (the closest to) the depth of zero annual amplitude, active layer thickness (ALT) and soil organic carbon (SOC) at different depth measured during the baseline period (2006 ...
Fu, Bojie   +6 more
core   +1 more source

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

open access: yes, 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   +2 more
core   +1 more source

The effect of different AlGaN insertion layer thicknesses on the photoelectric properties of InGaN/AlGaN near UV light emitting diodes

open access: yesResults in Physics, 2023
In this paper, a near-ultraviolet LED structure was fabricated on a sapphire substrate by using metal–organic chemical vapor deposition with an undoped AlGaN insertion layer introduced between multiple quantum wells and electron blocking layers, and the ...
Chaozhi Xu   +7 more
doaj   +1 more source

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