170 research outputs found

    Asynchronous logic automata

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    Thesis (S.M.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2008.This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.Includes bibliographical references (p. 89-92).Numerous applications, from high-performance scientific computing to large, high-resolution multi-touch interfaces to strong artificial intelligence, push the practical physical limits of modern computers. Typical computers attempt to hide the physics as much as possible, running software composed of a series of instructions drawn from an arbitrary set to be executed upon data that can be accessed uniformly. However, we submit that by exposing, rather than hiding, the density and velocity of information and the spatially concurrent, asynchronous nature of logic, scaling down in size and up in complexity becomes significantly easier. In particular, we introduce "asynchronous logic automata", which are a specialization of both asynchronous cellular automata and Petri nets, and include Boolean logic primitives in each cell. We also show some example algorithms, means to create circuits, potential hardware implementations, and comparisons to similar models in past practice.by David Allen Dalrymple.S.M

    Lost and Found in Mathematics

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    This book is inspired by a German theoretical physicist, Sabine Hossenfelder’s publication: “Lost in Mathematics”. Her book seems to question highly mathematical and a lot of abstraction in the development of physics and cosmology studies nowadays. There is clear tendency that in recent decades, the physics science has been predominated by such an advanced mathematics, which at times sounding more like acrobatics approach to a reality. Through books by senior mathematical-physicists like Unzicker and Peter Woit, we know that the answer of TOE is not in superstring theories or other variations of such 26 dimensional bosonic string theory, of which none of those theories survived experimental test, but perhaps in low dimensional physics. As Alexander Unzicker suggests, perhaps it is more advisable to consider rotation in 3D space (known as SO3), or a kind of superfluid vortices version of gravitation theory. We can also reconsider proposition by the late Prof F. Winterberg (formerly professor at Univ. Nevada, Reno), that it is most likely that superfluid phonon roton theory in 3D can replace the entire superstring theories. While we don’t explore yet implications of his model to particle physics, we discuss here some published papers at several journals in the past few years

    Analysis and Life Cycle Assessment of Printed Antennas for Sustainable Wireless Systems

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    Siirretty Doriast

    Universal anomalous fluctuations in charged single-file systems

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    Conventional classification of dynamical phenomena is based on universal hydrodynamic relaxation characterized by algebraic dynamical exponents and asymptotic scaling of the dynamical structure factor. This work uncovers a novel type of dynamical universality reflected in statistical properties of macroscopic fluctuating observables such as the transmitted charge. By considering a general class of one-dimensional single-file systems ({meaning that particle crossings are prohibited}) of interacting hardcore charged particles, we demonstrate that stringent dynamical constraints give rise to universal anomalous statistics of cumulative charge currents manifested both on the timescale characteristic of typical fluctuations and also in the rate function describing rare events. By computing the full counting statistics of net transferred charge between two extended subsystems, we establish a number of unorthodox dynamical properties in an analytic fashion. Most prominently, typical fluctuations in equilibrium are governed by a universal distribution that markedly deviates from the expected Gaussian statistics, whereas large fluctuations are described by an exotic large-deviation rate function featuring an exceptional triple critical point. Far from equilibrium, competition between dynamical phases leads to dynamical phase transitions of first and second order. Despite dynamical criticality, we find the large-deviation rate function of the joint particle-charge transfer obeys the fluctuation relation. Curiously, the univariate charge-current rate function experiences a spontaneous breaking of fluctuation symmetry upon varying the particle and charge densities in a nonequilibrium initial state. The rich phenomenology of the outlined dynamical universality is exemplified on an exactly solvable classical cellular automaton of charged hardcore particles.Comment: 39+5 page

    Bulletin of the University of New Hampshire. Graduate catalog 1989-1991.

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    Undergraduate and Graduate Course Descriptions, 2023 Spring

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    Wright State University undergraduate and graduate course descriptions from Spring 2023

    University of Maine Bulletin, 1997-1998 Undergraduate Catalog, part 2

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    The second part (of two) of the University of Maine catalog for the 1997-98 academic year includes information on university-wide programs, interdisciplinary studies, course descriptions, contacts for correspondence with the university, a list of the University of Maine System Board of Trustees, professors / faculty members, alumni association representatives, award recipients, and an index

    Undergraduate and Graduate Course Descriptions, 2021 Fall

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    Wright State University undergraduate and graduate course descriptions from Fall 2021

    Undergraduate and Graduate Course Descriptions, 2021 Fall

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    Wright State University undergraduate and graduate course descriptions from Fall 2021

    Undergraduate and Graduate Course Descriptions, 2022 Fall

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    Wright State University undergraduate and graduate course descriptions from Fall 2022
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