Results for 'particles'

489 found
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  1.  68
    The Particle of Haag's Local Quantum Physics: A critical assessment.Gregg Jaeger - 2024 - Entropy 26:748.
    Rudolf Haag’s Local Quantum Physics (LQP) is an alternative framework to conventional relativistic quantum field theory for combining special relativity and quantum theory based on first principles, making it of great interest for the purposes of conceptual analysis despite currently being relatively limited as a tool for making experimental predictions. In LQP, the elementary particles are defined as species of causal link between interaction events, together with which they comprise its most fundamental entities. This notion of particle has yet (...)
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  2. Manifestly Covariant Lagrangians, Classical Particles with Spin, and the Origins of Gauge Invariance.Jacob Barandes - manuscript
    In this paper, we review a general technique for converting the standard Lagrangian description of a classical system into a formulation that puts time on an equal footing with the system's degrees of freedom. We show how the resulting framework anticipates key features of special relativity, including the signature of the Minkowski metric tensor and the special role played by theories that are invariant under a generalized notion of Lorentz transformations. We then use this technique to revisit a classification of (...)
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  3. The Elementary Particles of Quantum Fields.Gregg Jaeger - 2021 - Entropy 11 (23):1416.
    The elementary particles of relativistic quantum field theory are not simple field quanta, as has long been assumed. Rather, they supplement quantum fields, on which they depend but to which they are not reducible, as shown here with particles defined instead as a unified collection of properties that appear in both physical symmetry group representations and field propagators. This notion of particle provides consistency between the practice of particle physics and its basis in quantum field theory.
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  4. What is an elementary particle?Erwin Schrödinger - 1950 - Annual Report of the Board of Regents of The Smithsonian Institution:183-196.
    Schrödinger discusses what an elementary particle is. This essay originally appeared in the journal Endeavour.
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  5. Information particle.Minh-Hoang Nguyen & Tam-Tri Le - manuscript
    We propose an approach of treating information as an intermediate (or medium). The intermediate can be thought of as an information particle. That particle has three main properties.
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  6. Does accepting Fuzzy Time-Particle interpretation of Quantum Mechanics, refute the other interpretations? (Is fuzziness of time checkable experimentally?).Farzad Didehvar - manuscript
    Throughout this paper, in a nutshell we try to show a way to check Fuzzy time in general and Fuzzy time-Particle interpretation of Quantum Mechanics, experimentally. . -/- .
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  7. Localizability and Elementary Particles.Gregg Jaeger - 2020 - Journal of Physics: Conference Series 1638:012010.
    The well-definedness of particles of any kind depends on the limits, approximations, or other conditions that may or may not be involved, for example, whether there are interactions and whether ostensibly related energy is localizable. In particular, their theoretical status differs between its non-relativistic and relativistic versions: One can properly define interacting elementary particles in single-system non-relativistic quantum mechanics, at least in the case of non-zero mass systems; by contrast, one is severely challenged to define even these properly (...)
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  8. Particle Creation as the Quantum Condition for Probabilistic Events to Occur.Nicholas Maxwell - 1994 - Physics Letters A 187 (2 May 1994):351-355.
    A new version of quantum theory is proposed, according to which probabilistic events occur whenever new statioinary or bound states are created as a result of inelastic collisions. The new theory recovers the experimental success of orthodox quantum theory, but differs form the orthodox theory for as yet unperformed experiments.
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  9. Unobservability of short-lived particles: ground for skepticism about observational claims in elementary particle physics.Marcoen J. T. F. Cabbolet - manuscript
    The physics literature contains many claims that elementary particles have been observed: such observational claims are, of course, important for the development of existential knowledge. Regarding claimed observations of short-lived unstable particles in particular, the use of the word 'observation' is based on the convention in physics that the observation of a short-lived unstable particle can be claimed when its predicted decay products have been observed with a significance of 5 sigma. This paper, however, shows that this 5 (...)
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  10. Grounding with particles.Ahmad Jabbar & Veda Kanamarlapudi - forthcoming - In Ahmad Jabbar & Veda Kanamarlapudi (eds.), Proceedings of the 27th workshop on the Semantics and Pragmatics of Dialogue (SemDial 27).
    We focus on a sui generis grounding move in Hindi-Urdu dialogue, namely 'voh hi na'. 'Voh' is third person pronoun and can function as a propositional anaphor in dialogue. 'Hi' and 'na' are two discourse particles in Hindi-Urdu. A dataset consisting of minimal pairs of dialogues is presented to get a better sense of the move. Using dynamic models of discourse structure, we propose a semantics for 'voh hi na' in terms of its update effects.
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  11. Gauge Invariance for Classical Massless Particles with Spin.Jacob A. Barandes - 2021 - Foundations of Physics 51 (1):1-14.
    Wigner's quantum-mechanical classification of particle-types in terms of irreducible representations of the Poincaré group has a classical analogue, which we extend in this paper. We study the compactness properties of the resulting phase spaces at fixed energy, and show that in order for a classical massless particle to be physically sensible, its phase space must feature a classical-particle counterpart of electromagnetic gauge invariance. By examining the connection between massless and massive particles in the massless limit, we also derive a (...)
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  12. SINGULARITIES About Fuzzy time- Particle interpretation of Quantum Mechanics (It is not an innocent one!) Version two.Farzad Didehvar - manuscript
    Here, we show that by accepting Fuzzy time-Particle interpretation of Quantum Mechanics, the singularities in the new Model are vanished.
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  13. What do quantifier particles do?Anna Szabolcsi - 2015 - Linguistics and Philosophy 38 (2):159-204.
    In many languages, the same particles that form quantifier words also serve as connectives, additive and scalar particles, question markers, roots of existential verbs, and so on. Do these have a unified semantics, or do they merely bear a family resemblance? Are they aided by silent operators in their varied roles―if yes, what operators? I dub the particles “quantifier particles” and refer to them generically with capitalized versions of the Japanese morphemes. I argue that both MO (...)
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  14.  36
    Motion and particles.Sydney Ernest Grimm - manuscript
    Physics research has resulted in categories of phenomena and the present theoretical framework in physics of the microcosm, the Standard model, describes a number of fundamental building blocks: elementary particles and elementary forces. It “smells” like classic phenomenological physics so it is difficult to understand how this exhibit of phenomena can be transformed into a unified theory. But there is another way to think about motion, particles and their distinct properties.
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  15. The Wave Function and Particle Ontology.Shan Gao - 2014
    In quantum mechanics, the wave function of a N-body system is a mathematical function defined in a 3N-dimensional configuration space. We argue that wave function realism implies particle ontology when assuming: (1) the wave function of a N-body system describes N physical entities; (2) each triple of the 3N coordinates of a point in configuration space that relates to one physical entity represents a point in ordinary three-dimensional space. Moreover, the motion of particles is random and discontinuous.
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  16. Quantifier particles and compositionality.Anna Szabolcsi - 2013 - Proceedings of the 19th Amsterdam Colloquium.
    In many languages, the same particles build quantifier words and serve as connectives, additive and scalar particles, question markers, existential verbs, and so on. Do the roles of each particle form a natural class with a stable semantics? Are the particles aided by additional elements, overt or covert, in fulfilling their varied roles? I propose a unified analysis, according to which the particles impose partial ordering requirements (glb and lub) on the interpretations of their hosts and (...)
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  17. About Fuzzy time-Particle interpretation of Quantum Mechanics (it is not an innocent one!) version one.Farzad Didehvar - manuscript
    The major point in [1] chapter 2 is the following claim: “Any formalized system for the Theory of Computation based on Classical Logic and Turing Model of Computation leads us to a contradiction.” So, in the case we wish to save Classical Logic we should change our Computational Model. As we see in chapter two, the mentioned contradiction is about and around the concept of time, as it is in the contradiction of modified version of paradox. It is natural to (...)
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  18. Instead of Particles and Fields: A Micro Realistic Quantum "Smearon" Theory.Nicholas Maxwell - 1982 - Foundatioins of Physics 12 (6):607-631.
    A fully micro realistic, propensity version of quantum theory is proposed, according to which fundamental physical entities - neither particles nor fields - have physical characteristics which determine probabilistically how they interact with one another . The version of quantum "smearon" theory proposed here does not modify the equations of orthodox quantum theory: rather, it gives a radically new interpretation to these equations. It is argued that there are strong general reasons for preferring quantum "smearon" theory to orthodox quantum (...)
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  19. Outlines of Rutherford’s α-Particles Scattering Experiment.Arjun Dahal & Nikita Parajuli - 2018 - Journal of St.Xavier's Physics Council.
    Rutherford’s α-particles scattering experiment was one of the milestone for the physics community as it provided an insight to an atom thus discarding the previously prevailed Thomson’s model. Through this article we shall examine the theoretical formulation of Rutherford’s experiment and how it helped to shape the modern physics.
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  20. No Paradox in Wave–Particle Duality.Andrew Knight - 2020 - Foundations of Physics 50 (11):1723-1727.
    The assertion that an experiment by Afshar et al. demonstrates violation of Bohr’s Principle of Complementarity is based on the faulty assumption that which-way information in a double-slit interference experiment can be retroactively determined from a future measurement.
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  21. Quantum propensiton theory: A testable resolution of the wave/particle dilemma.Nicholas Maxwell - 1988 - British Journal for the Philosophy of Science 39 (1):1-50.
    In this paper I put forward a new micro realistic, fundamentally probabilistic, propensiton version of quantum theory. According to this theory, the entities of the quantum domain - electrons, photons, atoms - are neither particles nor fields, but a new kind of fundamentally probabilistic entity, the propensiton - entities which interact with one another probabilistically. This version of quantum theory leaves the Schroedinger equation unchanged, but reinterprets it to specify how propensitons evolve when no probabilistic transitions occur. Probabilisitic transitions (...)
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  22. Avoiding reification: Heuristic effectiveness of mathematics and the prediction of the omega minus particle.Michele Ginammi - 2016 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 53:20-27.
    According to Steiner (1998), in contemporary physics new important discoveries are often obtained by means of strategies which rely on purely formal mathematical considerations. In such discoveries, mathematics seems to have a peculiar and controversial role, which apparently cannot be accounted for by means of standard methodological criteria. M. Gell-Mann and Y. Ne׳eman׳s prediction of the Ω− particle is usually considered a typical example of application of this kind of strategy. According to Bangu (2008), this prediction is apparently based on (...)
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  23. Active Nano Diamond Particles, Having Special Electronic Features, Are The Founders Of Completely New Types Of High-power Nano Electronic Devices.Afshin Rashid - 2024 - Authorea 3.
    Nowadays, many semiconductors such as silicon are used in a wide range of nanoelectronic devices. However, due to the range of thermal changes and its extremely high speed, nano diamond is only compared to gold nanoparticles, which is the second best nano semiconductor in the world. Nano graphite and graphene nano strips are electrically conductive due to cloud scattering. Active nano diamond particles with such features, especially electronic ones, can be the foundation of completely new types of powerful nano (...)
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  24. Is the Photon Really a Particle?Paul Klevgard - 2021 - Optik 237 (166679):N/A.
    Photons deliver their energy and momentum to a point on a material target. It is commonplace to attribute this to particle impact. But since the in-flight photon also has a wave nature, we are stuck with the paradox of wave-particle duality. It is argued here that the photon’s wave nature is indisputable, but its particle nature is open to question. Photons deliver energy. The problem with invoking impact as a means of delivery is that energy becomes a payload which in (...)
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  25. Why Fuzzy Time-Particle interpretation but not Fuzzy (Space,Time)-Particle? Why Time is Asymmetrical?Didehvar Farzad - manuscript
    In previous article (Computing Fuzzy Time Function) the fuzzy function associated to the instants of time is computed, as it is introduced in Fuzzy Time-Particle interpretation of Quantum Mechanics. Here, we show this computation concludes time is asymmetrical. Also, some other results of the studied paper are discussed.
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  26. On the angular momentum of a system of quantum particles.O. Chavoya-Aceves - manuscript
    The properties of angular momentum and its connection to magnetic momentum are explored, based on a reconsideration of the Stern-Gerlach experiment and gauge invariance. A possible way to solve the so called spin crisis is proposed. The separation of angular momentum of a quantum system of particles into orbital angular momentum plus intrinsic angular momentum is reconsidered, within the limits of the Schr\"odinger theory. A proof is given that, for systems of more than two particles, unless all of (...)
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  27.  98
    Swarm of particles moving at the speed of light in quantum entanglement: The Origin of conscious World.Zheng Huang - manuscript
    This paper primarily investigates the following questions: The first question:What is the basic structure of consciousness? I proposed that objects moving at the speed of light form the fundamental structure of consciousness. The second question:How is the unified field of the conscious self formed? The study suggests that countless particles moving at the speed of light, through quantum entanglement, form the unified field of each individual's consciousness. Each individual's unified field consists of countless particles originating from a source, (...)
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  28. Triple-Aspect Monism and the Ontology of Quantum Particles.Gilbert B. Côté - 2013 - Open Journal of Philosophy 3 (4):451.
    An analysis of the physical implications of abstractness reveals the reality of three interconnected modes of existence: abstract, virtual and concrete, corresponding in physics to information, energy and matter. This triple-aspect monism clarifies the ontological status of subatomic quantum particles. It also provides a non-spooky solution to the weirdness of quantum physics and a new outlook for the mind-body problem. The ontological implications are profound for both physics and philosophy.
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  29. On the angular momentum of a system of quantum particles.Oscar Chavoya Aceves - manuscript
    The properties of angular momentum and its connection to magnetic momentum are explored, based on a reconsideration of the Stern-Gerlach experiment and gauge invariance. A possible way to solve the so called spin crisis is proposed. The separation of angular momentum of a quan- tum system of particles into orbital angular momentum plus intrinsic angular momentum is reconsidered, within the limits of the Schrodinger theory. A proof is given that, for systems of more than two particles, un- less (...)
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  30. Double Slit Experiment About Fuzzy time- Particle interpretation of Quantum Mechanics (It is not an innocent one!) Version two.Farzad Didehvar - manuscript
    The question of some of the friends is: -/- How is it possible to explain “Double slit experiment” by “Fuzzy time-Particle Interpretation”?
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  31. UnQuantum Woolf: The Many Intellectual Contexts of To the Lighthouse's Metaphorical Wave-Particle Binary.Xavier Cousin - 2022 - Dissertation, Durham University
    This thesis is a sceptical investigation into the notion that the metaphorical wave-particle binary of Virginia Woolf's To the Lighthouse is related to quantum physics. Indeed, the field of literature and science has employed conceptual similarities as the main means of connecting quantum concepts to novels, however, this has led to a host of scholarly difficulties, prompting the need for a re-examination of analogical linkages. Woolf is the model candidate for such a re-examination, given her historical and philosophical proximity with (...)
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  32. Inherent Properties and Statistics with Individual Particles in Quantum Mechanics.Matteo Morganti - 2009 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 40 (3):223-231.
    This paper puts forward the hypothesis that the distinctive features of quantum statistics are exclusively determined by the nature of the properties it describes. In particular, all statistically relevant properties of identical quantum particles in many-particle systems are conjectured to be irreducible, ‘inherent’ properties only belonging to the whole system. This allows one to explain quantum statistics without endorsing the ‘Received View’ that particles are non-individuals, or postulating that quantum systems obey peculiar probability distributions, or assuming that there (...)
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  33. Gabriel Vacariu and Mihai Vacariu (2017) From Hypernothing to Hyperverse: EDWs, Hypernothing, Wave and Particle, Elementary Particles, Thermodynamics, and Einstein’s Relativity Without “Spacetime”, Datagroup.Gabriel Vacariu and Mihai Vacariu - 2017 - Timisoara, Romania: Datagroup.
    Over the last two centuries, the relationship between philosophy and science has completely broken down, so the question we are confronted with is: How can we develop a new philosophy, which will influence science decisively? The physicists of the last century rejected their contemporary philosophy. They considered that “philosophy today is dead” (Hawking and Mlodinow 2010). However, we believe that the great scientific problems are always philosophical, and only philosophical problems. Therefore, these problems can be solved only by philosophers and (...)
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  34. Dark Energy and the Time Dependence of Fundamental Particle Constants.Bodo Lampe - manuscript
    The cosmic time dependencies of $G$, $\alpha$, $h$ and of Standard Model parameters like the Higgs vev and elementary particle masses are studied in the framework of a new dark energy interpretation. Due to the associated time variation of rulers, many effects turn out to be invisible. However, a rather large time dependence is claimed to arise in association with dark energy measurements, and smaller ones in connection with the Standard Model.
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  35. Persistence and Nonpersistence as Complementary Models of Identical Quantum Particles.Philip Goyal - 2019 - New Journal of Physics 21.
    According to our understanding of the everyday physical world, observable phenomena are underpinned by persistent objects that can be reidentified across time by observation of their distinctive properties. This understanding is reflected in classical mechanics, which posits that matter consists of persistent, reidentifiable particles. However, the mathematical symmetrization procedures used to describe identical particles within the quantum formalism have led to the widespread belief that identical quantum particles lack either persistence or reidentifiability. However, it has proved difficult (...)
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  36. Supernatural Resurrection and its Incompatibility with the Standard Model of Particle Physics: Second Rejoinder to Stephen T. Davis.Robert Greg Cavin & Carlos A. Colombetti - 2021 - Socio-Historical Examination of Religion and Ministry 3 (2):253-277.
    In response to Stephen Davis’s criticism of our previous essay, we revisit and defend our arguments that the Resurrection hypothesis is logically incompatible with the Standard Model of particle physics—and thus is maximally implausible—and that it cannot explain the sensory experiences of the Risen Jesus attributed to various witnesses in the New Testament—and thus has low explanatory power. We also review Davis’s reply, noting that he evades our arguments, misstates their conclusions, and distracts the reader with irrelevancies regarding, e.g., what (...)
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  37. Inequivalent Vacuum States and Rindler Particles.Robert Weingard & Barry Ward - 1998 - In Edgard Gunzig & Simon Diner (eds.), Le Vide: Univers du Tout et du Rien. Revue de l'Université de Bruxelles. pp. 241-255.
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  38. Identity in physics: Statistics and the (non-)individuality of quantum particles.Matteo Morganti - 2011 - In Henk W. De Regt, Stephan Hartmann & Samir Okasha (eds.), EPSA Philosophy of Science: Amsterdam 2009. Springer.
    This paper discusses the issue of the identity and individuality (or lack thereof) of quantum mechanical particles. It first reconstructs, on the basis of the extant literature, a general argument in favour of the conclusion that such particles are not individual objects. Then, it critically assesses each one of the argument’s premises. The upshot is that, in fact, there is no compelling reason for believing that quantum particles are not individual objects.
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  39. Theoretical mass value of electron, neutrino and other particles by means of QED together with Gravitational theory.Enrico Pier Giorgio Cadeddu - manuscript
    From time involved in pair production process, in the photon-photon collision, we consider energy and then mass uncertainty. Taking the latter as the mass of a particle, we repeat pair production process obtaining another mass uncertainty, then another particle mass, and so on. Starting with the heaviest charged elementary particle that is possible using Planck length for electromagnetic mass, we obtain a mass value close to electron mass. It is supposed exactly electron mass, considering the presence of uncertainties in the (...)
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  40. (1 other version)Discrete space and the wave-particle duality relation.Sydney Ernest Grimm - manuscript
    Paper about the origin of the wave-particle duality.
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  41. 3. Simulating gravity via Planck scale n-body particle-particle orbital pairs.Malcolm J. Macleod - manuscript
    An orbital simulation program is described that uses a geometrical approach to modeling gravitational and atomic orbits at the Planck scale. Orbiting objects A, B, C... are sub-divided into points, each point representing 1 unit of Planck mass, for example, a 1kg satellite would divide into 1kg/Planck mass = 45940509 points. Each point in object A then forms a rotating orbital pair with every corresponding point in objects B, C... resulting in a universe-wide, n-body network of rotating point-to-point orbital pairs. (...)
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  42. Art, politics, and particle physics, with one eye on the past: Steven Weinberg: Third Thoughts. Cambridge, MA: The Belknap Press of Harvard University Press, 2018, 240pp, $25.95HB. [REVIEW]Karen Crowther - 2019 - Metascience 28 (2):331-334.
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  43. Michael M. Woolfson, Materials, Matter and Particles: A Brief History. [REVIEW]Sean F. Johnston - 2011 - Ambix 58:182-183.
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  44.  8
    Investigating The Catalysis of Nano Particles in The Process of Simulating Carbon Nanotubes and CNTs.Afshin Rashid - 2024 - Elsevier Bv , Engrn Electrical Engineering Ejournal, 261.
    Nanoparticles can also be used as catalysts due to their high surface area. Of course, catalytic properties also occur in certain dimensions like magnetic properties. In other words, nanoparticles usually have catalytic properties if their specific surface is between 100 and 400 square meters per gram. Therefore, among nanoparticles with a specific volume, a nanoparticle with a larger surface area shows better catalytic properties. An example of nanoparticles that act as catalysts where various substances are placed on their surface and (...)
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  45. Emi Morita: Negotiation of contingent talk: The japanese interactional particles ne and sa. [REVIEW]Chad Nilep - 2007 - Language in Society 36 (1):144-145.
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  46.  72
    Latency-Aware Packet Transmission Optimization in Duty-Cycled WSNs.M. Arulselvan - 2024 - Journal of Science Technology and Research (JSTAR) 5 (1):444-459.
    Wireless Sensor Networks (WSNs) have become increasingly prevalent in various applications, ranging from environmental monitoring to smart cities. However, the limited energy resources of sensor nodes pose significant challenges in maintaining network longevity and data transmission efficiency. Duty-cycled WSNs, where sensor nodes alternate between active and sleep states to conserve energy, offer a solution to these challenges but introduce new complexities in data transmission. This paper presents an optimized approach to aggregated packet transmission in duty-cycled WSNs, utilizing advanced optimization techniques (...)
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  47. The Elusive Higgs Mechanism.Chris Smeenk - 2006 - Philosophy of Science 73 (5):487-499.
    The Higgs mechanism is an essential but elusive component of the Standard Model of particle physics. Without it Yang‐Mills gauge theories would have been little more than a warm‐up exercise in the attempt to quantize gravity rather than serving as the basis for the Standard Model. This article focuses on two problems related to the Higgs mechanism clearly posed in Earman’s recent papers (Earman 2003, 2004a, 2004b): what is the gauge‐invariant content of the Higgs mechanism, and what does it mean (...)
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  48. Bottoms up: The Standard Model Effective Field Theory from a model perspective.Philip Bechtle, Cristin Chall, Martin King, Michael Krämer, Peter Mättig & Michael Stöltzner - 2022 - Studies in History and Philosophy of Science Part A 92 (C):129-143.
    Experiments in particle physics have hitherto failed to produce any significant evidence for the many explicit models of physics beyond the Standard Model (BSM) that had been proposed over the past decades. As a result, physicists have increasingly turned to model-independent strategies as tools in searching for a wide range of possible BSM effects. In this paper, we describe the Standard Model Effective Field Theory (SM-EFT) and analyse it in the context of the philosophical discussions about models, theories, and (bottom-up) (...)
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  49. If Quantum Mechanics Is the Solution, What Should the Problem Be?Vasil Penchev - 2020 - Philosophy of Science eJournal (Elsevier: SSRN) 13 (32):1-10.
    The paper addresses the problem, which quantum mechanics resolves in fact. Its viewpoint suggests that the crucial link of time and its course is omitted in understanding the problem. The common interpretation underlain by the history of quantum mechanics sees discreteness only on the Plank scale, which is transformed into continuity and even smoothness on the macroscopic scale. That approach is fraught with a series of seeming paradoxes. It suggests that the present mathematical formalism of quantum mechanics is only partly (...)
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  50. On Magnetic Forces and Work.Jacob A. Barandes - 2021 - Foundations of Physics 51 (4):1-17.
    We address a long-standing debate over whether classical magnetic forces can do work, ultimately answering the question in the affirmative. In detail, we couple a classical particle with intrinsic spin and elementary dipole moments to the electromagnetic field, derive the appropriate generalization of the Lorentz force law, show that the particle's dipole moments must be collinear with its spin axis, and argue that the magnetic field does mechanical work on the particle's elementary magnetic dipole moment. As consistency checks, we calculate (...)
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