Results for 'energy–momentum complexes'

989 found
Order:
  1.  87
    The Tensors of the Averaged Relative Energy–Momentum and Angular Momentum in General Relativity and Some of Their Applications.Janusz Garecki - 2007 - Foundations of Physics 37 (3):341-365.
    There exist different kinds of averaging of the differences of the energy–momentum and angular momentum in normal coordinates NC(P) which give tensorial quantities. The obtained averaged quantities are equivalent mathematically because they differ only by constant scalar dimensional factors. One of these averaging was used in our papers [J. Garecki, Rep. Math. Phys. 33, 57 (1993); Int. J. Theor. Phys. 35, 2195 (1996); Rep. Math. Phys. 40, 485 (1997); J. Math. Phys. 40, 4035 (1999); Rep. Math. Phys. 43, 397 (...)
    Direct download (4 more)  
     
    Export citation  
     
    Bookmark  
  2.  34
    Clebsch representations and energy-momentum of the classical electromagnetic and gravitational fields.G. S. Asanov - 1980 - Foundations of Physics 10 (11-12):855-863.
    By means of a Clebsch representation which differs from that previously applied to electromagnetic field theory it is shown that Maxwell's equations are derivable from a variational principle. In contrast to the standard approach, the Hamiltonian complex associated with this principle is identical with the generally accepted energy-momentum tensor of the fields. In addition, the Clebsch representation of a contravariant vector field makes it possible to consistently construct a field theory based upon a direction-dependent Lagrangian density (it is this kind (...)
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark   2 citations  
  3.  40
    A Relativistic Hidden-Variable Interpretation for the Massive Vector Field Based on Energy-Momentum Flows.George Horton & Chris Dewdney - 2010 - Foundations of Physics 40 (6):658-678.
    This paper is motivated by the desire to formulate a relativistically covariant hidden-variable particle trajectory interpretation of the quantum theory of the vector field that is formulated in such a way as to allow the inclusion of gravity. We present a methodology for calculating the flows of rest energy and a conserved density for the massive vector field using the time-like eigenvectors and eigenvalues of the stress-energy-momentum tensor. Such flows may be used to define particle trajectories which follow the flow. (...)
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark  
  4. Einstein׳s physical strategy, energy conservation, symmetries, and stability: “But Grossmann & I believed that the conservation laws were not satisfied”.J. Brian Pitts - 2016 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 54 (C):52-72.
    Recent work on the history of General Relativity by Renn, Sauer, Janssen et al. shows that Einstein found his field equations partly by a physical strategy including the Newtonian limit, the electromagnetic analogy, and energy conservation. Such themes are similar to those later used by particle physicists. How do Einstein's physical strategy and the particle physics derivations compare? What energy-momentum complex did he use and why? Did Einstein tie conservation to symmetries, and if so, to which? How did his work (...)
    Direct download (6 more)  
     
    Export citation  
     
    Bookmark   13 citations  
  5.  70
    Complex Vector Formalism of Harmonic Oscillator in Geometric Algebra: Particle Mass, Spin and Dynamics in Complex Vector Space.K. Muralidhar - 2014 - Foundations of Physics 44 (3):266-295.
    Elementary particles are considered as local oscillators under the influence of zeropoint fields. Such oscillatory behavior of the particles leads to the deviations in their path of motion. The oscillations of the particle in general may be considered as complex rotations in complex vector space. The local particle harmonic oscillator is analyzed in the complex vector formalism considering the algebra of complex vectors. The particle spin is viewed as zeropoint angular momentum represented by a bivector. It has been shown that (...)
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   1 citation  
  6.  16
    Theoretical Model Development for Energy Motion of Dusty Turbulent Flow of Fibre Suspensions in a Rotational Frame.Shams Forruque Ahmed - 2022 - Complexity 2022:1-11.
    Fibre suspension has garnered considerable attention in turbulent flows that are used in many industries. Solid particles, such as dust particles, notably affect the turbulent flow field in a rotational frame. In assessing their impacts, the dusty turbulent flow for fibre suspensions needs to be studied in a frame of rotation that can be substantially applied in many industries. This study, therefore, aims to build a theoretical model for the energy motion of dusty turbulent flow of fibre suspensions in a (...)
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  7. Mass‐energy‐momentum: Only there because of spacetime.Dennis Lehmkuhl - 2011 - British Journal for the Philosophy of Science 62 (3):453-488.
    I describe how relativistic field theory generalizes the paradigm property of material systems, the possession of mass, to the requirement that they have a mass–energy–momentum density tensor T µ associated with them. I argue that T µ does not represent an intrinsic property of matter. For it will become evident that the definition of T µ depends on the metric field g µ in a variety of ways. Accordingly, since g µ represents the geometry of spacetime itself, the properties (...)
    Direct download (11 more)  
     
    Export citation  
     
    Bookmark   36 citations  
  8.  80
    The Energy-Momentum Tensor for Electromagnetic Interactions.Asim O. Barut & Walter Wyss - 1998 - Foundations of Physics 28 (5):699-715.
    We compute the energy tensor and the energy-momentum tensor for electrodynamics coupled to the current of a charged scalar field and for electrodynamics coupled tothe current of a Dirac spinor field, without using the equations of motion.
    Direct download (4 more)  
     
    Export citation  
     
    Bookmark  
  9.  84
    Dissipation in the Klein-Gordon Field.Boris Leaf - 1999 - Foundations of Physics 29 (9):1457-1478.
    The formalism of (±)-frequency parts , previously applied to solution of the D'Alembert equation in the case of the electromagnetic field, is applied to solution of the Klein-Gordon equation for the K-G field in the presence of sources. Retarded and advanced field operators are obtained as solutions, whose frequency parts satisfy a complex inhomogeneous K-G equation. Fourier transforms of these frequency parts are solutions of the central equation, which determines the time dependence of the destruction/creation operators of the field. The (...)
    Direct download (4 more)  
     
    Export citation  
     
    Bookmark  
  10.  44
    The foundations of quantum mechanics.P. J. Bussey - 1988 - Foundations of Physics 18 (5):491-528.
    Starting from a set of assumptions mainly of an “operational” or experimentally based nature, a derivation of quantum mechanics is presented, with the aim of clarifying the essential features of the theory and their interpretation. Various properties of quantum mechanics such as the addition of amplitudes, the calculation of probabilities, de Broglie's equations, and energy-momentum conservation are derived from first principles. It is investigated whether quantum amplitudes may be constructed from quantities of higher order than complex numbers. Measurable physical quantitics, (...)
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark  
  11. Coordinate transform invariance.John L. Johnson - 1996 - Foundations of Physics 26 (11):1529-1557.
    A four-dimensional operator is shown to contain the operator-generators for rotation, scale, reflections, and boosts. The hypothesis is advanced that a physical system changes under this operator by at most a complex phase factor due to invariance against the choice of menial frame. A canonical transform gives a simple relation between space-time and energy-momentum. The basic conserved quantity is a four-dimensional angular momentum and/or coupling constant. The differential of this function contains a second-order differential product which is constrained as a (...)
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark  
  12.  89
    Standpoint cosmology.G. F. Chew - 1995 - Foundations of Physics 25 (9):1283-1333.
    An unorthodox cosmology is based on a notion of “standpoint,” distinguishing past from future, realized through Hilbert-space representation of the complex conformai group for 3+1spacetime and associated coherent states. Physical symmetry attaches to eight-parameter complex Poincaré displacements, interpretable as growth of standpoint age, boost of matter energy-momentum in standpoint rest frame and displacement of matter location in a compact U⊗O/O spacetime attached to standpoint. An “initial” condition is characterized by a huge dimensionless parameter α that breaks dilation invariance. Four major (...)
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark  
  13.  25
    Surface energy of complex – and simple – metallic compounds as derived from friction test in vacuum.J. -M. Dubois, M. -C. de Weerd, J. Brenner, M. Sales, G. Mozdzen, A. Merstallinger & E. Belin-Ferré - 2006 - Philosophical Magazine 86 (6-8):797-805.
  14.  10
    Energy-Momentum of Radiating Systems.J. Winicour - 1970 - In Moshe Carmeli, Stuart I. Fickler & Louis Witten, Relativity. New York,: Plenum Press. pp. 1--293.
    Direct download  
     
    Export citation  
     
    Bookmark  
  15.  23
    Magnetic Field Effect on Heat and Momentum of Fractional Maxwell Nanofluid within a Channel by Power Law Kernel Using Finite Difference Method.Maha M. A. Lashin, Muhammad Usman, Muhammad Imran Asjad, Arfan Ali, Fahd Jarad & Taseer Muhammad - 2022 - Complexity 2022:1-16.
    The mathematical model of physical problems interprets physical phenomena closely. This research work is focused on numerical solution of a nonlinear mathematical model of fractional Maxwell nanofluid with the finite difference element method. Addition of nanoparticles in base fluids such as water, sodium alginate, kerosene oil, and engine oil is observed, and velocity profile and heat transfer energy profile of solutions are investigated. The finite difference method involving the discretization of time and distance parameters is applied for numerical results by (...)
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  16.  28
    Energy and Complexity.Zofia Lukszo, Ettore Bompard, Paul Hines & Liz Varga - 2018 - Complexity 2018:1-2.
    No categories
    Direct download (5 more)  
     
    Export citation  
     
    Bookmark  
  17.  30
    Laue's Theorem Revisited: Energy-Momentum Tensors, Symmetries, and the Habitat of Globally Conserved Quantities.Domenico Giulini - 2018 - International Journal of Geometric Methods in Modern Physics 15 (10).
    The energy-momentum tensor for a particular matter component summarises its local energy-momentum distribution in terms of densities and current densities. We re-investigate under what conditions these local distributions can be integrated to meaningful global quantities. This leads us directly to a classic theorem by Max von Laue concerning integrals of components of the energy-momentum tensor, whose statement and proof we recall. In the first half of this paper we do this within the realm of Special Relativity and in the traditional (...)
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   1 citation  
  18.  33
    Energy-Momentum Tensors and Motion in Special Relativity.Domenico Giulini - unknown
    The notions of ``motion'' and ``conserved quantities'', if applied to extended objects, are already quite non-trivial in Special Relativity. This contribution is meant to remind us on all the relevant mathematical structures and constructions that underlie these concepts, which we will review in some detail. Next to the prerequisites from Special Relativity, like Minkowski space and its automorphism group, this will include the notion of a body in Minkowski space, the momentum map, a characterisation of the habitat of globally conserved (...)
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark  
  19. Energy-momentum tensor near an evaporating black hole.P. C. W. Davies & S. A. Fulling - unknown
    two dimensions, quantum radiation production is incompatible with a conserved and traceless T„,. We therefore resolve an ambiguity in our expression for Tr„, regularized by a geodesic point-separation procedure.
     
    Export citation  
     
    Bookmark  
  20.  90
    Neutrino Oscillations: Entanglement, Energy-Momentum Conservation and QFT. [REVIEW]E. K. Akhmedov & A. Y. Smirnov - 2011 - Foundations of Physics 41 (8):1279-1306.
    We consider several subtle aspects of the theory of neutrino oscillations which have been under discussion recently. We show that the S-matrix formalism of quantum field theory can adequately describe neutrino oscillations if correct physics conditions are imposed. This includes space-time localization of the neutrino production and detection processes. Space-time diagrams are introduced, which characterize this localization and illustrate the coherence issues of neutrino oscillations. We discuss two approaches to calculations of the transition amplitudes, which allow different physics interpretations: (i) (...)
    Direct download (4 more)  
     
    Export citation  
     
    Bookmark  
  21.  53
    Poynting Theorem, Relativistic Transformation of Total Energy–Momentum and Electromagnetic Energy–Momentum Tensor.Alexander Kholmetskii, Oleg Missevitch & Tolga Yarman - 2016 - Foundations of Physics 46 (2):236-261.
    We address to the Poynting theorem for the bound electromagnetic field, and demonstrate that the standard expressions for the electromagnetic energy flux and related field momentum, in general, come into the contradiction with the relativistic transformation of four-vector of total energy–momentum. We show that this inconsistency stems from the incorrect application of Poynting theorem to a system of discrete point-like charges, when the terms of self-interaction in the product \ and bound electric field \ are generated by the same (...)
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   1 citation  
  22. Liberty, energy and complexity in the longue durée.Stephen Quilley - 2019 - In Christopher J. Orr & Kaitlin Kish, Liberty and the Ecological Crisis: Freedom on a Finite Planet. New York, NY: Routledge.
     
    Export citation  
     
    Bookmark  
  23.  41
    Bianchi identities and the automatic conservation of energy-momentum and angular momentum in general-relativistic field theories.Friedrich W. Hehl & J. Dermott McCrea - 1986 - Foundations of Physics 16 (3):267-293.
    Automatic conservation of energy-momentum and angular momentum is guaranteed in a gravitational theory if, via the field equations, the conservation laws for the material currents are reduced to the contracted Bianchi identities. We first execute an irreducible decomposition of the Bianchi identities in a Riemann-Cartan space-time. Then, starting from a Riemannian space-time with or without torsion, we determine those gravitational theories which have automatic conservation: general relativity and the Einstein-Cartan-Sciama-Kibble theory, both with cosmological constant, and the nonviable pseudoscalar model. The (...)
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark   5 citations  
  24.  22
    Contribution of Pressure to the Energy–Momentum Density in a Moving Perfect Fluid: A Physical Perspective.Ashok K. Singal - 2021 - Foundations of Physics 51 (1):1-20.
    In the energy–momentum density expressions for a relativistic perfect fluid with a bulk motion, one comes across a couple of pressure-dependent terms, which though well known, are to an extent, lacking in their conceptual basis and the ensuing physical interpretation. In the expression for the energy density, the rest mass density along with the kinetic energy density of the fluid constituents due to their random motion, which contributes to the pressure as well, are already included. However, in a fluid (...)
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark   1 citation  
  25.  27
    Nuclear denial in Japan: the network power of an energy industrial complex.Michael C. Dreiling, Tomoyasu Nakamura & Yvonne A. Braun - 2024 - Theory and Society 53 (1):1-39.
    Given the known hazards of nuclear energy in seismically active Japan after the Fukushima meltdowns as well as the presence of viable conservation and renewable energy options, the question of Japan’s stalled energy transition warrants critical interrogation. To better understand why, after Fukushima, Japan’s energy policy trajectory maintained the nuclear status quo and an increased reliance on fossil fuels, this article employs network and historical analyses to examine the confluence of post-Fukushima political forces connected to Japan’s nuclear energy sector. Our (...)
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  26.  55
    Free Energy and Virtual Reality in Neuroscience and Psychoanalysis: A Complexity Theory of Dreaming and Mental Disorder.Jim Hopkins - 2016 - Frontiers in Psychology 7:198697.
    The main concepts of the free energy (FE) neuroscience developed by Karl Friston and colleagues parallel those of Freud's Project for a Scientific Psychology. In Hobson et al. ( 2014 ) these include an innate virtual reality generator that produces the fictive prior beliefs that Freud described as the primary process. This enables Friston's account to encompass a unified treatment—a complexity theory—of the role of virtual reality in both dreaming and mental disorder. In both accounts the brain operates to minimize (...)
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   16 citations  
  27.  24
    Experimental evidence of the formation of d-like states near the Fermi energy in complex metallic alloys.E. Belin-Ferré & J. -M. Dubois - 2008 - Philosophical Magazine 88 (13-15):2163-2170.
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   3 citations  
  28.  88
    Energy and Angular Momentum of Systems in General Relativity.F. I. Cooperstock - 2001 - Foundations of Physics 31 (7):1067-1082.
    Stemming from our energy localization hypothesis that energy in general relativity is localized in the regions of the energy-momentum tensor, we had devised a test with the classic Eddington spinning rod. Consistent with the localization hypothesis, we found that the Tolman energy integral did not change in the course of the motion. This implied that gravitational waves do not carry energy in vacuum, bringing into question the demand for the quantization of gravity. Also if information is conveyed by the waves, (...)
    Direct download (4 more)  
     
    Export citation  
     
    Bookmark  
  29. Biological Emergence: a Key Exemplar of the Open Systems View.George F. R. Ellis - forthcoming - In Michael E. Cuffaro & Stephan Hartmann, Open Systems: Physics, Metaphysics, and Methodology (2025: Oxford University Press). Oxford: Oxford University Press.
    The context for biological emergence is modular hierarchical structures; their existence is what enables functional complexity to arise. Because of the openness of organisms to their environment, complete initial data (position, momentum) of all particles making up their structure is insufficient to determine future outcomes, because unpredictable new matter, energy, and information impacts each organism from the exterior. Consequently, through Darwinian evolution, life has developed processes to handle this issue functionally on short time scales as well on longer developmental timescales. (...)
    No categories
    Direct download  
     
    Export citation  
     
    Bookmark  
  30.  56
    Energy rate density as a complexity metric and evolutionary driver.E. J. Chaisson - 2011 - Complexity 16 (3):27-40.
  31.  28
    Comment on the paper of A. K. Singal ‘Contribution of pressure to the energy-momentum density in a moving perfect fluid: A physical perspective.’. [REVIEW]Vladimir Onoochin - 2022 - Foundations of Physics 52 (2):1-4.
    In this short Comment, it is shown why the fluid concept of A.K. Singal is not applicable to analysis of the electrodynamical systems.
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark  
  32. Free Energy and Virtual Reality in Psychoanalysis and Neuroscience: A Complexity Theory of Dreaming and Mental Disorder.Jim Hopkins - 2016 - Frontiers in Psychology 7.
    This paper compares the free energy neuroscience now advocated by Karl Friston and his colleagues with that hypothesised by Freud, arguing that Freud's notions of conflict and trauma can be understood in terms of computational complexity. It relates Hobson and Friston's work on dreaming and the reduction of complexity to contemporary accounts of dreaming and the consolidation of memory, and advances the hypothesis that mental disorder can be understood in terms of computational complexity and the mechanisms, including synaptic pruning, that (...)
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  33.  56
    Energy rate density. II. Probing further a new complexity metric.E. J. Chaisson - 2011 - Complexity 17 (1):44-63.
  34.  8
    Conservation Laws in Quantum Database Search.Li-Yi Hsu & Ching-Hsu Chen - 2024 - Foundations of Physics 54 (5):1-13.
    Recently, the correspondence between the air track scenario and quantum database search algorithm was revealed. The conservation laws of linear momentum and nonlinear kinetic energy in the former case, which involve sequential elastic collisions, have their analogs in the latter case. Obviously, probability normalization combined with the Born rule serves as an analog for kinetic energy conservation. Here we explore the linear conservation laws in a generic quantum database search. Regarding the non-uniform distribution of the marked state, the uneven state (...)
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark  
  35. Weiskel's Sublime and the Impasse of Knowledge.Laura Quinney - 1994 - Philosophy and Literature 18 (2):309-319.
    In lieu of an abstract, here is a brief excerpt of the content:Notes and Fragments WEISKEL'S SUBLIME AND THE IMPASSE OF KNOWLEDGE by Laura Quinney Since the publication of Thomas Weiskel's The Romantic Sublime in 1976, scholars of the sublime, in America at any rate, have taken their cue from the demystifying character ofWeiskel's analysis.1 Before Weiskel the most ambitious twentieth-century account of the sublime was Samuel Monk's largely descriptive work The Sublime: A Study of Critical Theories inEighteenth-CenturyEngland.2 With the (...)
    Direct download (4 more)  
     
    Export citation  
     
    Bookmark  
  36.  31
    New Thoughts about an Old Eikonal Problem.H. M. Fried - 2000 - Foundations of Physics 30 (4):529-532.
    Two different methods of approach, currently under investigation, are suggested for calculating the eikonal function corresponding to quark-quark scattering at very high energies and small momentum transfers. These methods illustrate the realistic, dynamical complexities inherent in QCD scattering problems.
    Direct download (4 more)  
     
    Export citation  
     
    Bookmark  
  37.  23
    Complementary aspects of gravitation and electromagnetism.P. F. Browne - 1977 - Foundations of Physics 7 (3-4):165-183.
    A convention with regard to geometry, accepting nonholonomic aether motion and coordinate-dependent units, is always valid as an alternative to Einstein's convention. Choosing flat spacetime, Newtonian gravitation is extended, step by step, until equations closely analogous to those of Einstein's theory are obtained. The first step, demanded by considerations of inertia, is the introduction of a vector potential. Treating the electromagnetic and gravitational fields as real and imaginary components of a complex field (gravitational mass being treated as imaginary charge), the (...)
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark   1 citation  
  38.  28
    Nuclear structure on a Grassmann manifold.J. A. de Wet - 1987 - Foundations of Physics 17 (10):993-1018.
    Products of particlelike representations of the homogeneous Lorentz group are used to construct the degrees of spin angular momentum of a composite system of protons and neutrons. If a canonical labeling system is adopted for each state, a shell structure emerges. Furthermore the use of the Dirac ring ensures that the spin is characterized by half-angles in accord with the neutron-rotation experiment. It is possible to construct a Clebsch-Gordan decomposition to reduce a state of complex angular momentum into simpler states (...)
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark  
  39.  48
    From the Geometry of Pure Spinors with Their Division Algebras to Fermion Physics.Paolo Budinich - 2002 - Foundations of Physics 32 (9):1347-1398.
    The Cartan equations defining simple spinors (renamed “pure” by C. Chevalley) are interpreted as equations of motion in compact momentum spaces, in a constructive approach in which at each step the dimensions of spinor space are doubled while those of momentum space increased by two. The construction is possible only in the frame of the geometry of simple or pure spinors, which imposes contraint equations on spinors with more than four components, and then momentum spaces result compact, isomorphic to invariant-mass-spheres (...)
    Direct download (5 more)  
     
    Export citation  
     
    Bookmark   2 citations  
  40. CHN, QCD, and SA\overline {SA} .Yuval Ne'eman - 1996 - Foundations of Physics 26 (12):1607-1615.
    “CHN≓ (1966)was an algebraic algorithm which reproduced and extended the predictions of the “non-interacting≓ quark model in the asymptotic high-energy region. It wus formulated within the conceptual framework of on- mass- shell physics and of the complex angular-momentum plane. Prior to the advent of the standard model, it was reinterpreted in terms of the Melosh transformation relating “current≓ to “constituent≓ quarks. It is now lied up to the QCD paradigm.
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark  
  41.  83
    New Problematic Aspects of Current String Theories and Their Invariant Resolution.Ruggero Maria Santilli - 2002 - Foundations of Physics 32 (7):1111-1140.
    We identify new, rather serious, physical and mathematical inconsistencies of the current formulation of noncanonical or nonunitary string theories due to the lack of invariant units necessary for consistent measurements, lack of preservation in time of Hermiticity-observability, and other shortcomings. We propose three novel reformulations of string theories for matter of progressively increasing complexity via the novel iso-, geno-, and hyper-mathematics of hadronic mechanics, which resolve the current inconsistencies, while offering new intriguing possibilities, such as: an axiomatically consistent and invariant (...)
    Direct download (5 more)  
     
    Export citation  
     
    Bookmark  
  42.  31
    Complex energies in relativistic quantum theory.James D. Edmonds - 1974 - Foundations of Physics 4 (4):473-479.
    A new four-component spin-1/2 wave equation for ordinary mass is discussed. It is shown that this equation has a conserved current not easily identified with a transition probability, only pure imaginary energy states, and is covariant. A tachyon-like Klein-Gordon equation is satisfied by this equation, but rest states are explicitly constructed.
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark   1 citation  
  43.  63
    The local industrial complex? Questioning the link between local foods and energy use.Matthew J. Mariola - 2008 - Agriculture and Human Values 25 (2):193-196.
    Local food has become the rising star of the sustainable agriculture movement, in part because of the energy efficiencies thought to be gained when food travels shorter distances. In this essay I critique four key assumptions that underlie this connection between local foods and energy. I then describe two competing conclusions implied by the critique. On the one hand, local food systems may need a more extensive and integrated transportation infrastructure to achieve sustainability. On the other hand, the production, transportation, (...)
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark   8 citations  
  44.  84
    Energy, Complexity, and Strategies of Evolution: As Illustrated by Maya Indians of Guatemala.Richard N. Adams - 2010 - World Futures 66 (7):470-503.
  45. Complexity in energy and a low carbon transition.Martin Freer - 2025 - In Eliezer Rabinovici, Laws: rigidity and dynamics. Hackensack, NJ: World Scientific Publishing Co. Pte..
     
    Export citation  
     
    Bookmark  
  46.  14
    Agriculture and the energy-complexity spiral.Joseph A. Tainter - 2016 - Behavioral and Brain Sciences 39.
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  47.  39
    Complexity of a problem of energy efficient real-time task scheduling on a multicore processor.Abhishek Mishra & Anil Kumar Tripathi - 2016 - Complexity 21 (1):259-267.
    Direct download  
     
    Export citation  
     
    Bookmark   1 citation  
  48.  46
    Electron-energy-loss spectroscopy and X-ray absorption spectroscopy as complementary probes for complex f-electron metals: cerium and plutonium.K. T. Moore, M. A. Wall, A. J. Schwartz, B. W. Chung, S. A. Morton, J. G. Tobin, S. Lazar, F. D. Tichelaar, H. W. Zandbergen, P. Söderlind & G. van der Laan - 2004 - Philosophical Magazine 84 (10):1039-1056.
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   1 citation  
  49.  12
    An Innovative Way to Generate Hamiltonian Energy of a New Hyperchaotic Complex Nonlinear Model and Its Control.Kholod M. Abualnaja - 2020 - Complexity 2020:1-10.
    We are implementing a new Rabinovich hyperchaotic structure with complex variables in this research. This modern system is a real, autonomous hyperchaotic, and 8-dimensional continuous structure. Some of the characteristics of this system, as well as for invariance, dissipation, balance, and stability, are technically analyzed. Some other properties are also studied numerically, such as Lyapunov exponents, Lyapunov dimension, bifurcation diagrams, and chaotic actions. Hamiltonian energy is being studied and applying by using the innovative method. Via active control method, we inhibit (...)
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  50. A Multi-scale View of the Emergent Complexity of Life: A Free-energy Proposal.Casper Hesp, Maxwell Ramstead, Axel Constant, Paul Badcock, Michael David Kirchhoff & Karl Friston - forthcoming - In Michael Price & John Campbell, Evolution, Development, and Complexity: Multiscale Models in Complex Adaptive Systems.
    We review some of the main implications of the free-energy principle (FEP) for the study of the self-organization of living systems – and how the FEP can help us to understand (and model) biotic self-organization across the many temporal and spatial scales over which life exists. In order to maintain its integrity as a bounded system, any biological system - from single cells to complex organisms and societies - has to limit the disorder or dispersion (i.e., the long-run entropy) of (...)
    Direct download  
     
    Export citation  
     
    Bookmark   18 citations  
1 — 50 / 989