Results 21 to 30 of about 82,572 (267)

A novel architecture for active service management [PDF]

open access: yes, 2001
Future multiservice networks will be extremely large and complex. In this environment, Active Services will be needed to enable the rapid service evolution demanded by users. Active services also enable service management to be delegated to network users
Roadknight, Chris   +4 more
core   +1 more source

Fluid Migration through Permafrost and the Pool of Greenhouse Gases in Frozen Soils of an Oil and Gas Field

open access: yesRemote Sensing, 2022
Most methane (CH4) and carbon dioxide (CO2) emissions originate from the biodegradation of organic matter of soils and of degrading permafrost in the Arctic.
Gleb Kraev   +6 more
doaj   +1 more source

High-resolution electrical resistivity tomography applied to patterned ground, Wedel Jarlsberg Land, south-west Spitsbergen [PDF]

open access: yesPolar Research, 2015
This article presents results of two-dimensional electrical resistivity tomography (ERT) applied to three types of patterned ground in Wedel-Jarlsberg Land (Svalbard), carried out in late July 2012. The structures investigated include sorted circles, non-
Marek Kasprzak
doaj   +1 more source

Single-Layer Bandpass Active Frequency Selective Surface [PDF]

open access: yes, 2008
A single-layer, bandpass, active FSS is presented. It shows good angle of incidence stability for TE incidence, at the operating frequency of 2.45 GHz. It is based on circular loop aperture with each unit cell having four PIN diodes.
Kenneth L. Ford   +17 more
core   +1 more source

Identification of Thermally-Tagged Coherent Structures in the Zero Pressure Gradient Turbulent Boundary Layer [PDF]

open access: yes, 2013
A zero pressure gradient boundary layer over a flat plate is subjected to step changes in thermal condition at the wall, causing the formation of internal, heated layers.
Rought, Rebecca Lynn
core   +1 more source

Recent Approaches to Controlling the Nanoscale Morphology of Polymer-Based Bulk-Heterojunction Solar Cells

open access: yesEnergies, 2013
The need for clean, inexpensive and renewable energy has increasingly turned research attention towards polymer photovoltaic cells. However, the performance efficiency of these devices is still low in comparison with silicon-based devices.
Abdulra'uf Lukman Bola   +3 more
doaj   +1 more source

Recent evolution of the active layer in the Morenas Coloradas rock glacier, Central Andes, Mendoza, Argentina and its relation with kinematics

open access: yesCuadernos de Investigación Geográfica, 2020
Between 2008 and 2016 the Morenas Coloradas rock glacier in the Central Andes of Mendoza showed different thermal characteristics at three monitoring sites in active layers, Balcón I (3560 m a.s.l.), Balcón I Superior (3590 m a.s.l.) and Balcón II (3770 ...
D. Trombotto-Liaudat, E. Bottegal
doaj   +1 more source

Influence of Rainfall Changes on the Temperature Regime of Permafrost in Central Yakutia

open access: yesLand, 2021
Climate change effects, such as melting of glaciers and sea ice in response to rising temperatures, may lead to an increase in global water availability and thus in precipitation.
Aleksandr Zhirkov   +3 more
doaj   +1 more source

Thermal variations of the active layer in Fildes Peninsula, King George Island, Maritime Antarctica [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2023
This work aimed to characterize the variation in the thermal regime of the active layer in a permafrost area on Fildes Peninsula, Antarctica, and relate this variability with meteorological data between 2014 and 2016. The monitoring site was installed to
ANDRÉ M. DE ANDRADE   +6 more
doaj   +1 more source

Temperature-Activated Layer-Breathing Vibrations in Few-Layer Graphene [PDF]

open access: yesNano Letters, 2014
We investigated the low-frequency Raman spectra of freestanding few-layer graphene (FLG) at varying temperatures (400 - 900 K) controlled by laser heating. At high temperature, we observed the fundamental Raman mode for the lowest-frequency branch of rigid-plane layer-breathing mode (LBM) vibration.
Lui, Chun Hung   +4 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy