Results 121 to 130 of about 706,826 (277)

Permafrost hydrology in changing climatic conditions: seasonal variability of stable isotope composition in rivers in discontinuous permafrost [PDF]

, 2015
Role of changing climatic conditions on permafrost degradation and hydrology was investigated in the transition zone between the tundra and forest ecotones at the boundary of continuous and discontinuous permafrost of the lower Yenisei River.
Nyland, Kelsey E., Opel, Thomas, Shiklomanov, Alexander I., Shiklomanov, Nikolay I., Streletskaya, Irina D., Streletskiy, Dmitry A., Tananaev, Nikita I., Tokarev, Igor   +7 more
core   +1 more source

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

Advanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz, Maik Szafarska, René Gustus, Kai Möhwald, Hans Jürgen Maier   +4 more
wiley   +1 more source

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

Advanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley   +1 more source

Influences and interactions of inundation, peat, and snow on active layer thickness

Geophysical Research Letters, 2016
Active layer thickness (ALT), the uppermost layer of soil that thaws on an annual basis, is a direct control on the amount of organic carbon potentially available for decomposition and release to the atmosphere as carbon‐rich Arctic permafrost soils thaw
Adam L. Atchley, Ethan T. Coon, Scott L. Painter, Dylan R. Harp, Cathy J. Wilson   +4 more
doaj   +1 more source

Efficient Light Trapping in Organic Solar Cell Using a Short-Pitched Hexagonal Array of Metallic Nanocylinders

IEEE Photonics Journal, 2016
Plasmonic nanostructures have a great potential for enhancing light absorption of organic solar cells (OSCs). Our previous work has demonstrated that light absorption for OSCs with thin active layer can be significantly increased with a 1-D short-pitched
Wenyan Wang, Ye Zhang, Ming Chen, Yuying Hao, Ting Ji, Furong Zhu, Yanxia Cui   +6 more
doaj   +1 more source

High-power AlGaAs laser with a thin tapered-thickness active layer

Electronics Letters, 1986
A laser whose active layer is thinner near the mirror facet than the inner region is fabricated. Lasers with narrow beam divergence perpendicular to the junction, as narrow as 10°-20°, are obtained with little increase of threshold current. For lasers emitting at 780 nm, stable 30 mW operation at 50°C has been confirmed without obvious degradation over
T. Murakami, K. Ohtaki, H. Matsubara, T. Yamawaki, H. Saito, K. Isshiki, Y. Kokubo, H. Kumabe, W. Susaki   +8 more
openaire   +1 more source

Novel Tailoring of Ternary ZnS‐MXene‐TiO2 Nanocomposite Heterojunction and Its Tunable Electrochemical Properties With Enhanced Photocatalytic Degradation

Advanced Engineering Materials, EarlyView.
ZnS‐MXene‐TiO2 nanocomposite heterojunction for photocatalytic decomposition of this methylene blue dye (MB) greatly improves light absorption, charge separation, and active site area. Two‐dimensional MXene forms nanocomposites by easily combining them with 0D (quantum dots), 1D (tube and wire), 2D (plane and sheet), and 3D (particle and lamellar ...
Latiful Kabir, Dohyun Kim, Minho Song, Jae Doc Na, Young Jun Joo, Kwang Youn Cho, Karna Wijaya, Won‐Chun Oh   +7 more
wiley   +1 more source

Spatio-Temporal Variations of Soil Active Layer Thickness in Chinese Boreal Forests from 2000 to 2015

Remote Sensing, 2018
The soil active layer in boreal forests is sensitive to climate warming. Climate-induced changes in the active layer may greatly affect the global carbon budget and planetary climatic system by releasing large quantities of greenhouse gases that ...
Xiongxiong Bai, Jian Yang, Bo Tao, Wei Ren   +3 more
doaj   +1 more source

Recent Results of the ATLAS Upgrade Planar Pixel Sensors R&D Project

, 2012
To cope with the higher occupancy and radiation damage at the HL-LHC also the LHC experiments will be upgraded. The ATLAS Planar Pixel Sensor R&D Project (PPS) is an international collaboration of 17 institutions and more than 80 scientists, exploring ...
Weigell, Philipp
core   +1 more source

Influence of Electrical Operating Conditions and Active Layer Thickness

, 2009
We have studied the influence of the electrical working conditions (voltage or current biased), and the active layer thickness on electroluminescence (EL) properties of polymeric light emitting diodes based on poly-[9,9-bis(60-cyanohexyl)-2,7-fluorene-alt-co-1,4-phenylene], [PFP:(CN)2].
Romero, Beatriz, Arredondo, Belen
openaire   +1 more source