Results 61 to 70 of about 2,977,790 (238)

Energy Investments for Africa’s Energy Transition [PDF]

, 2018
The challenge of bringing modern energy to everyone in Africa is a global challenge that requires substantial investments as well as a strong commitment to make the energy sector more effective and efficient within the single countries. This chapter suggests that both African governments and the plethora of foreign investors have the possibility to ...
Manfred Hafner, Simone Tagliapietra, Lucia de Strasser   +2 more
openaire   +2 more sources

Landau Ginzburg Theory and Nuclear Matter at Finite Temperature

, 1997
Based on recent studies of the temperature dependence of the energy and specific heat of liquid nuclear matter, a phase transition is suggested at a temperature $\sim .8$ MeV. We apply Landau Ginzburg theory to this transition and determine the behaviour
Khanna, F. C., Miller, H. G., Ritchie, R. A.   +2 more
core   +2 more sources

3D-Printed Multi-Axis Alignment Airgap Dielectric Layer for Flexible Capacitive Pressure Sensor

Micromachines
Flexible pressure sensors are increasingly recognized for their potential use in wearable electronic devices, attributed to their sensitivity and broad pressure response range. Introducing surface microstructures can notably enhance sensitivity; however,
Jeong-Beom Ko, Soo-Wan Kim, Hyeon-Beom Kim, Hyeon-Yun Jeong, Su-Yeong Moon, Young-Jin Yang   +5 more
doaj   +1 more source

Application of Energy Storage Systems to Enhance Power System Resilience: A Critical Review

Energies
The growing frequency and severity of extreme events, both natural and human-induced, have heightened concerns about the resilience of power systems.
Muhammad Usman Aslam, Md Sazal Miah, B. M. Ruhul Amin, Rakibuzzaman Shah, Nima Amjady   +4 more
doaj   +1 more source

A 3D Numerical Model to Estimate Lightning Types for PyroCb Thundercloud

Applied Sciences
Pyrocumulonimbus (pyroCb) thunderclouds, produced from extreme bushfires, can initiate frequent cloud-to-ground (CG) lightning strikes containing extended continuing currents.
Surajit Das Barman, Rakibuzzaman Shah, Syed Islam, Apurv Kumar   +3 more
doaj   +1 more source

Prediction of fire danger index using a new machine learning based method to enhance power system resiliency against wildfires

IET Generation, Transmission & Distribution
Wildfires, which can cause significant damage to power systems, are mostly inevitable and unpredictable. Fire danger indexes, such as the Forest Fire Danger Index (FFDI) and the Canadian Fire Weather Index (FWI), measure the potential wildfire danger at ...
Tan Nhat Pham, Rakibuzzaman Shah, Nima Amjady, Syed Islam   +3 more
doaj   +1 more source

Experimental analysis of a horizontal-axis wind turbine with swept blades using PIV data [PDF]

Wind Energy Science
This study presents findings from a wind tunnel experiment investigating a model wind turbine equipped with aft-swept blades. Utilising particle image velocimetry, velocity fields were measured at multiple radial stations.
E. Fritz, E. Fritz, K. Boorsma, C. Ferreira   +3 more
doaj   +1 more source

Energy surface and minimum energy paths for Fr\'{e}edericksz transitions in bistable cholesteric liquid crystals

, 2015
The multidimensional energy surface of a cholesteric liquid crystal in a planar cell is investigated as a function of spherical coordinates determining the director orientation. Minima on the energy surface correspond to the stable states with particular
Aksenova, E. V., Bessarab, P. F., Ivanov, A. V., Romanov, V. P., Uzdin, V. M.   +4 more
core   +1 more source

Equation of state description of the dark energy transition between quintessence and phantom regimes

, 2005
The dark energy crossing of the cosmological constant boundary (the transition between the quintessence and phantom regimes) is described in terms of the implicitly defined dark energy equation of state.
Alam U, Bassett B A, Brevik I, Caldwell R R, Capozziello S, Hannestad S, Hrvoje Stefancic, Jassal H K, Li M, Sahni V, Sola J   +10 more
core   +1 more source

Australian fire weather variability using calibrated long-term reanalysis data

Discover Environment
Spatiotemporal variability on multi-decadal time scales can be observed in weather conditions associated with wildfires. The climatic factors that drive this variability in fire weather conditions have been studied using bias-corrected 20th Century ...
Soubhik Biswas, Savin S. Chand, Andrew J. Dowdy, Krishneel Sharma   +3 more
doaj   +1 more source