Results 21 to 30 of about 2,934,598 (340)
All-Biobased Hydrovoltaic-Photovoltaic Electricity Generators for All-Weather Energy Harvesting
Research, 2022 Hygroelectricity generators (HEGs) utilize the latent heat stored in environmental moisture for electricity generation, but nevertheless are showing relatively low power densities due to their weak energy harvesting capacities. Inspired by epiphytes that
Guoping Ren +5 more
doaj +1 more source
Vacuum Energy Sequestering and Graviton Loops [PDF]
Phys. Rev. Lett. 118, 061303 (2017), 2016 We recently formulated a local mechanism of vacuum energy sequester. This mechanism automatically removes all matter loop contributions to vacuum energy from the stress energy tensor which sources the curvature. Here we adapt the local vacuum energy sequestering mechanism to also cancel all the vacuum energy loops involving virtual gravitons, in ...
arxiv +1 more source
The Exact Quantum Sine-Gordon Field Equation and Other Non-Perturbative Results [PDF]
Phys.Lett. B471 (1999) 53-57, 1999 Using the methods of the "form factor program" exact expressions of all matrix elements are obtained for several operators of the quantum sine Gordon model: all powers of the fundamental bose field, general exponentials of it, the energy momentum tensor and all higher currents. It is found that the quantum sine-Gordon field equation holds with an exact
arxiv +1 more source
Fast MATLAB evaluation of nonlinear energies using FEM in 2D and 3D: nodal elements [PDF]
Applied Mathematics and Computation, Volume 424, 2022, 2021 Nonlinear energy functionals appearing in the calculus of variations can be discretized by the finite element (FE) method and formulated as a sum of energy contributions from local elements. A fast evaluation of energy functionals containing the first order gradient terms is a central part of this contribution.
arxiv +1 more source
New technical solutions for the design of NPP passive safety systems [PDF]
Nuclear Energy and TechnologyThe paper describes the new principle of passive NPP safety systems designing, in which the natural circulation of working fluid or gas is replaced by forced circulation in order to increase it’s capacity.
Sergey L. Soloviev +4 more
doaj +3 more sources
Gravitational vacuum polarization II: Energy conditions in the Boulware vacuum [PDF]
Phys.Rev.D54:5116-5122,1996, 1996 I show that in the Boulware vacuum (1) all standard (point-wise and averaged) energy conditions are violated throughout the exterior region---all the way from spatial infinity down to the event horizon, and (2) outside the event horizon the standard point-wise energy conditions are violated in a maximal manner: they are violated at all points and for ...
arxiv +1 more source
Energy-Efficient Broadcasting in All-Wireless Networks [PDF]
Wireless Networks, 2005 In all-wireless networks, minimizing energy consumption is crucial as in most cases the nodes are battery-operated. We focus on the problem of power-optimal broadcast, for which it is well known that the broadcast nature of radio transmissions can be exploited to optimize energy consumption. This problem appears to be difficult to solve.
Čagalj, Mario +2 more
openaire +6 more sources
TANGRA – an experimental setup for basic and applied nuclear research by means of 14.1 MeV neutrons
EPJ Web of Conferences, 2017 For investigation of the basic characteristics of 14.1 MeV neutron induced nuclear reactions on a number of important isotopes for nuclear science and engineering, a new experimental setup TANGRA has been constructed at the Frank Laboratory of Neutron ...
Ruskov Ivan +21 more
doaj +1 more source
Модернизация, инновация, развитие, 2020 Purpose: determination of the opportunities and definition of prospects of diversification in the field of production of new products (in the case of the nuclear industry), which allows to match the level of a new technological stage and to achieve state
D. Yu. Faikov, D. Yu. Baydarov
doaj +1 more source
BMC Energy: a home for all energy and fuels research [PDF]
BMC Energy, 2019 This editorial accompanies the full launch of the latest new BMC Series journal, BMC Energy. Written jointly by the journal Section Editors, the Chair of the Editorial Advisory Board and the Editor at Springer Nature, this editorial outlines how this new journal plans to serve the energy research community and describes in detail the scope of the work ...
Harriet E. Manning +5 more
openaire +2 more sources