Query : classical mechanics
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Comparison of analysis between the classical ESIS method and the ASTM D-7905 standard, for obtaining shear fracture toughness.
Spectral decomposition of single-tone-driven quantum phase modulation
The Tension Between the Mathematical and Metaphysical Strands of Maupertuis’ Principle of Least Action
Without doubt, the principle of least action is a fundamental principle in classical mechanics. Contemporary physicists, however, consider the PLA as a purely mathematical principle – even an axiom which they cannot completely justify. Such an account stands in sharp contrast with the historical mea...
Splits in students’ beliefs about learning classical and quantum physics
Abstract Background While there has been increasing recognition of the importance of attending to students’ views about what counts as knowing and learning a STEM field, surveys that measure these “epistemological” beliefs are often used in ways that implicitly assume the fields, e.g., “physics,” to...
Time and Consciousness in Cognitive Naturalism
Eliminative materialists argue that we can overcome the phenomenological gap between two different ways of referring to our subjective experiences – either as introspectively grasped in terms of folk psychology or as explained in neurological terms – by abandoning the pre-scientific concepts of folk...
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Theoretical Physics: A Primer for Philosophers of Science
We give a overview of the main areas in theoretical physics, with emphasis on their relation to Lagrangian formalism in classical mechanics. This review covers classical mechanics; the road from classical mechanics to Schrodinger's quantum mechanics; electromagnetism, special and general relativity,...
Queueing Theoretic Approaches to Financial Price Fluctuations
One approach to the analysis of stochastic fluctuations in market prices is to model characteristics of investor behaviour and the complex interactions between market participants, with the aim of extracting consequences in the aggregate. This agent-based viewpoint in finance goes back at least to t...
Dynamics of systems with large number of particles and dynamical systems
In this thesis, we study the behavior of solutions of partial differential equations that arise from the modeling of systems with a large number of particles. The dynamic of all these systems is driven by interaction between the particles and external and internal forces. However, we will consider d...
Intermittency and Self-Organisation in Turbulence and Statistical Mechanics
There is overwhelming evidence, from laboratory experiments, observations, and computational studies, that coherent structures can cause intermittent transport, dramatically enhancing transport. A proper description of this intermittent phenomenon, however, is extremely difficult, requiring a new no...
Artificial satellites preliminary orbit determination by the modified high-order Gauss method
Motion of a small rigid body in an incompressible viscous fluid, convection problems and dynamics of falling films
This thesis is devoted to three different non-linear evolution equations in fluid mechanics : the fluid-solid system, the Boussinesq system and a falling films model. For the fluid-solid system, we study the evolution of a small moving solid in incompressible viscous fluid in the case the obstacle c...
Poetic creation in classical Greek drama or how to create surprise within tradition : the example of the Oedipus myth in Greek tragedy
The aim of this PhD thesis, based on Aeschylus’, Sophocles’ and Euripides’ treatments of the Oedipus myth, is to understand how Greek tragic playwrights – who aroused the public interest while always dealing with the same stories – managed to reinvent theatre and write new plays out of the same myth...
Hypothesis and Convention in Poincaré’s Defense of Galilei Spacetime
International audience According to the conventionalist doctrine of space elaborated by the French philosopher-scientist Henri Poincaré in the 1890s, the geometry of physical space is a matter of definition , not of fact. Poincaré's Hertz-inspired view of the role of hypothesis in science guided his...
Multi-Regime Shallow Free-Surface Flow Models for Quasi-Newtonian Fluids
International audience The mathematical modeling of thin free-surface laminar flows for quasi-Newtonian fluids (power-law rheology) is addressed with a particular attention to geophysical flows (e.g. ice or lava flows). Asymptotic thin-layer flow models (one-equation and two-equation models) consist...
Mechanics of Cosserat Generalized Continuum and Modelling in Structural Geology
A concepção e interpretação de modelos em geologia estrutural, especialmente os numéricos, são eminentemente baseadas nos princípios da mecânica do contínuo clássico, onde a formulação intrínseca possui alto grau de simetria em sua própria essência. No entanto, as estruturas geológicas apresentam em...
A Discrete Solution for the Paradox of Achilles and the Tortoise
International audience In this paper, I present a discrete solution for the paradox of Achilles and the tortoise. I argue that Achilles overtakes the tortoise after a finite number of steps of Zeno's argument if time is represented as discrete. I then answer two objections that could be made against...
John Polkinghorne, science and religion from the theoretical physics
En este artículo se presenta, comenta y discute el pensamiento de John Polkinghorne. Trasuna semblanza de su persona y presentación de su contribución al diálogo ciencia/religión desde lafísica teórica, se analiza su epistemología, su valoración de algunas ideas de la metafísica clásica, suanálisis...
Evolution of Pre- and Post-Copulatory Traits in Male Drosophila melanogaster as a Correlated Response to Selection for Resistance to Cold Stress
Background In Drosophila melanogaster the fitness of males depends on a broad array of reproductive traits classified as pre- and post-copulatory traits. Exposure to cold stress, can reduce sperm number, male mating ability and courtship behavior. Therefore, it is expected that the adaptation to col...
Airflow in the Human Nasal Passage and Sinuses of Chronic Rhinosinusitis Subjects
Endoscopic surgery is performed on patients with chronic inflammatory disease of the paranasal sinuses to improve sinus ventilation. Little is known about how sinus surgery affects sinonasal airflow. In this study nasal passage geometry was reconstructed from computed tomographic imaging from health...
The Methodology OF Students’ Synergetic WORLD OUTLOOK DEVELOPMENT BASED ON THE TRANS-Disciplinary APPROACH
The paper discusses the present stage of the world educational system development influenced by the fast increasing flow of information and knowledge. The situation requires the adequate pedagogical technologies for compressing the learning information; one of them is the transdisciplinary technolog...
Analysis of scientific prediction in Isaac Newton
Caracteriza, en forma breve, la Predicción Cientí ca en la obra de Isaac Newton. El estudio se circunscribe a la magistral obra Principia, relievando aquellos elementos predictivos implícitos, presentes en los escritos del gran sabio inglés, los mismos que son examinados desde los conceptos fundamen...
Boltzmann and the Classical Mechanism
O objetivo deste artigo consiste em expor as idéias, que o físico austríaco Ludwig Boltzmann (1844-1906) sobre o papel que a mecânica clássica desempenha na física. Ele as concebeu numa época em que a mecânica clássica começava a ser considerada como ultrapassada como fundamento para a física. Boltz...
Scope and Role of Physical Theories em Hilary Put, and Werner Heisenberg
In this work we attempt to analyze the intra-theoretic characterization provided by Hilary Putnam and Werner Heisenberg between quantum mechanics and other theories. The first defended the idea that physical theories include macro principles that under specific definite historical conditions can be...
Rule of number — war of nature
The article sketches the evolution of mathematical social sciences in Great Britain, focussing on Political Economy and Social Statistics. The formal methods which were later to become of greatest importance in these sciences (differential calculus and probability theory) were mainly imported from c...
A java application to characterize biomolecules and nanomaterials in electrolyte aqueous solutions
The electrostatic, entropic and surface interactions between a macroion (nanoparticle or biomolecule), surrounding ions and water molecules play a fundamental role in the behavior and function of colloidal systems. However, the molecular mechanisms governing these phenomena are still poorly understo...