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Nature Reviews Physics, 2022 Getting the most from power-law-type data can be challenging. James Sethna points out some of the pitfalls in studying power laws arising from emergent scale invariance, as well as important opportunities.
J. Sethna
arxiv +4 more sources
Physics of the power corrections in QCD [PDF]
Surveys in High Energy Physics, 2000 We review the physics of the power corrections to the parton model. In the first part, we consider the power corrections which characterize the infrared sensitivity of Feynman graphs when the contribution of short distances dominates. The second part is devoted to the hypothetical power corrections associated with nonperturbative effects at small ...
Valentin I. Zakharov +2 more
openaire +6 more sources
International Journal of Theoretical Physics, 2016 34 pages, 8 figures.
Giacomo Mauro D'Ariano +1 more
openaire +8 more sources
Features of heavy physics in the CMB power spectrum [PDF]
Journal of Cosmology and Astroparticle Physics, 2011 The computation of the primordial power spectrum in multi-field inflation models requires us to correctly account for all relevant interactions between adiabatic and non-adiabatic modes around and after horizon crossing. One specific complication arises from derivative interactions induced by the curvilinear trajectory of the inflaton in a multi ...
Sjoerd Hardeman +6 more
openaire +9 more sources
Power System Security With Cyber-Physical Power System Operation [PDF]
IEEE Access, 2020 Cyber-attacks on a cyber-physical power system could lead to significant data failure, false data injection and cascading failure of physical power system components. This paper proposes an advanced approach based on a ternary Markovian model of cyber-physical components interactions to capture the subsystem layers' interactions of the cyber-physical ...
Peju Adesina Oyewole, Dilan Jayaweera
openaire +3 more sources
Plant efficiency: a sensitivity analysis of the capacity factor for fusion power plants with high recirculated power [PDF]
Nuclear Fusion Vol. 61, 046032 (2021), 2021 The plant efficiency of a nuclear fusion power plant is considered. During nominal operation, the plant efficiency is determined by the thermodynamic efficiency and the recirculated power fraction. However, on average the reactor operates below the nominal power, even when the long shutdown periods for large maintenance are left outside the averaging ...
arxiv +1 more source
The Power of Physical Representations
Ai Magazine, 1989 Commonsense reasoning about the physical world, as exemplified by "Iron sinks in water" or "If a ball is dropped it gains speed," will be indispensable in future programs. We argue that to make such predictions (namely, envisioning), programs should use abstract entities (such as the gravitational field), principles (such as the principle of ...
Akman, V., ten Hagen, P. J. W.
openaire +4 more sources
Real-time Power System Simulation with Hardware Devices through DNP3 in Cyber-Physical Testbed [PDF]
2021 IEEE Texas Power and Energy Conference (TPEC), 2021 Modern power grids are dependent on communication systems for data collection, visualization, and control. Distributed Network Protocol 3 (DNP3) is commonly used in supervisory control and data acquisition (SCADA) systems in power systems to allow control system software and hardware to communicate.
arxiv +1 more source
Trans-Planckian footprints in inflationary cosmology [PDF]
, 2003 We consider a minimum uncertainty vacuum choice at a fixed energy scale Lambda as an effective description of trans-Planckian physics, and discuss its implications for the linear perturbations of a massless scalar field in power-law inflationary models ...
A Tronconi +34 more
core +2 more sources
Physics in geothermal power plants [PDF]
Journal of Physics: Conference Series, 2019 Abstract Many students dont like physics because they feel far away from physics. Therefore physics must be made closer to students through contextual physics. This paper wants to describe the physical concepts that exist in geothermal power plants. The method used is Research and Development (R & D) with the ADDIE model design.
Yayu Nurhayati Rahayu +5 more
openaire +1 more source