The Use of Piezoelectric Actuators in an Energy-Efficient Noise Reduction System [PDF]
, 2015 The piezoelectric effect allows for conversion between mechanical stress and electrical impulses. By utilizing this phenomenon, a novel method of sound attenuation was explored and tested in which a piezoelectric plate absorbs part of an incoming sound ...
Johnson, Ian J.M.
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Jensen-Feynman approach to the statistics of interacting electrons
, 2009 Faussurier et al. [Phys. Rev. E 65, 016403 (2001)] proposed to use a variational principle relying on Jensen-Feynman (or Gibbs-Bogoliubov) inequality in order to optimize the accounting for two-particle interactions in the calculation of canonical ...
Franck Gilleron +4 more
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Spin-orbital Kondo decoherence by environmental effects in capacitively coupled quantum dot devices
, 2007 Strong correlation effects in a capacitively coupled double quantum-dot setup were previously shown to provide the possibility of both entangling spin-charge degrees of freedom and realizing efficient spin-filtering operations by static gate-voltage ...
Denis Feinberg +5 more
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Stepwise verification of functions and energy use for central residential AHU in apartment buildings [PDF]
E3S Web of ConferencesIn Sweden, central air handling units (AHUs) with plate heat exchangers are often used in energy-efficient airtight multi-family buildings to reduce maintenance points, improve operation, and low risk for odour spreading.
Kempe Per
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Santiago, 2017 The work aims to argue from the factors; Political, economic and cultural importance of promoting the efficient use of energy resources in the organization, in order to promote the development of a culture in favor of the efficient use of these resources.
Mónica Rosario Berenguer-Ungaro +3 more
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Energy efficiency in small and medium scale foundry industry
Metalurgija, 2016 In this paper, the research results of surveys which were conducted in an Indian foundry cluster which are potential members of such sectors are presented. These results indicate that there is an enough potential improvement in the energy use. The use of
G. Patange, M. Khond
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Fermionic Vacuum Energy from a Nielsen-Olesen Vortex
, 2003 We calculate the vacuum energy of a spinor field in the background of a Nielsen-Olesen vortex. We use the method of representing the vacuum energy in terms of the Jost function on the imaginary momentum axis. Renormalization is carried out using the heat
Ana Achucarro +28 more
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Energy-use efficiency of organic and conventional plant production systems in Germany
Scientific ReportsSustainable and efficient energy use in agriculture helps tackle climate change by reducing fossil energy use. We evaluated German farming systems by analysing energy input and output.
Lucie Chmelíková +3 more
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Energy Use Efficiency in Biomass Production Systems [PDF]
, 2005 Fossil energy use efficiency is higher in low-input crop production systems than in high-input systems. This is caused by the fact that in low-input systems, a relatively large amount of the used nitrogen originates from non-fossil resources. In energy crop production systems, solar energy is converted into plant material (with the aid of fossil energy)
openaire +2 more sources
An Agenda for Energy and Material Efficiency Policy – An Element of Technology Policy for a More Sustainable Use of Natural Resources [PDF]
Discussions about the future options of the energy systems of industrialised countries are held almost exclusively in terms of alternative resources of energy supply and related technologies.
Eberhard Jochem
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