Results 11 to 20 of about 13,946,868 (234)

Efficiency of quantum controlled non-Markovian thermalization [PDF]

open access: yes, 2015
We study optimal control strategies to optimize the relaxation rate towards the fixed point of a quantum system in the presence of a non-Markovian dissipative bath.
Calarco, Tommaso   +5 more
core   +3 more sources

Effective study selection using text mining or a single-screening approach: a study protocol

open access: yesSystematic Reviews, 2018
Background Systematic information retrieval generally requires a two-step selection process for studies, which is conducted by two persons independently of one another (double-screening approach). To increase efficiency, two methods seem promising, which
Siw Waffenschmidt   +5 more
doaj   +1 more source

Operation strategies of battery energy storage systems for preventive and curative congestion management in transmission grids

open access: yesIET Generation, Transmission & Distribution, 2023
Anticipating and relieving congestions is an ongoing challenge for transmission system operators. Distributed grid‐scale battery energy storage systems enable operators to shift power flows and remedy congestion through virtual power lines and grid ...
Martin Lindner   +7 more
doaj   +1 more source

A Comparative Study of NOx Emission Characteristics in a Fuel Staging and Air Staging Combustor Fueled with Partially Cracked Ammonia

open access: yesEnergies, 2022
Recently, ammonia is emerging as a potential source of energy in power generation and industrial sectors. One of the main concerns with ammonia combustion is the large amount of NO emission.
Namsu Kim   +4 more
doaj   +1 more source

Reconfigurable Intelligent Surfaces for Energy Efficiency in Wireless Communication [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2018
The adoption of a reconfigurable intelligent surface (RIS) for downlink multi-user communication from a multi-antenna base station is investigated in this paper.
Chongwen Huang   +4 more
semanticscholar   +1 more source

A simulation study to compare different estimation approaches for network meta-analysis and corresponding methods to evaluate the consistency assumption

open access: yesBMC Medical Research Methodology, 2020
Background Network meta-analysis (NMA) is becoming increasingly popular in systematic reviews and health technology assessments. However, there is still ambiguity concerning the properties of the estimation approaches as well as for the methods to ...
Corinna Kiefer   +2 more
doaj   +1 more source

From Energy Audit to Energy Performance Indicators (EnPI): A Methodology to Characterize Productive Sectors. The Italian Cement Industry Case Study

open access: yesEnergies, 2021
In this work, a novel methodology to assess energy performance indicators of productive and economic sectors trough the analysis of the Italian mandatory energy audits database is presented.
Giacomo Bruni   +8 more
doaj   +1 more source

Energy and Spectral Efficiency of Very Large Multiuser MIMO Systems [PDF]

open access: yesIEEE Transactions on Communications, 2011
A multiplicity of autonomous terminals simultaneously transmits data streams to a compact array of antennas. The array uses imperfect channel-state information derived from transmitted pilots to extract the individual data streams.
H. Ngo, E. Larsson, T. Marzetta
semanticscholar   +1 more source

On the Potential of District-Scale Life Cycle Assessments of Buildings

open access: yesEnergies, 2023
Climate neutrality goals in the building sector require a large-scale estimation of environmental impacts for various stakeholders. Life Cycle Assessment (LCA) is a viable method for this purpose.
Maximilian Schildt   +6 more
doaj   +1 more source

Energy efficiency-spectral efficiency trade-off of transmit antenna selection [PDF]

open access: yes, 2014
We investigate the energy efficiency-spectral efficiency (EE-SE) trade-off of transmit antenna selection/maximum ratio combining (TAS) scheme. A realistic power consumption model (PCM) is considered, and it is shown that using TAS can provide significant
Brante, Glauber   +4 more
core   +1 more source

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