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Books on the topic 'Velocity difference'

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Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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1

Yu, S. C. M. Velocity measurements downstream of a lobed forced mixer with different trailing edge configurations. Washington, D. C: American Institute of Aeronautics and Astronautics, 1994.

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2

Frenje, Lena. Scattering of Seismic Waves in Random Velocity Models: Finite Difference Simulations (Comprehensive Summaries of Uppsala Dissertations from the Faculty ... the Faculty of Science and Technology, 519). Coronet Books, 1999.

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3

Di Paolo, Ezequiel A., Thomas Buhrmann, and Xabier E. Barandiaran. Representational pull, enactive escape velocity. Oxford University Press, 2017. http://dx.doi.org/10.1093/acprof:oso/9780198786849.003.0002.

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Two different paths have been taken by researchers who argue that embodiment is crucial for understanding the mind. The first path is embodied functionalism, essentially the claim that traditional cognitivism needs to take into account the lessons of cognitive linguistics, dynamical systems explanations, and autonomous robotics seriously, so as to include bodily structures and processes in accounts of cognition. However, what it means to be a cognitive system remains unchanged and ruled by the computer metaphor. The other path rejects this metaphor and proposes that the self-organizing living body is constitutive of what it is to be a mind. This path, represented by enactivism, is not committed to a representational view of the mind, but rather understands it as an emergent, relational, world-involving phenomenon. The sensorimotor approach to perception may be interpreted in these terms; however, this approach requires a nonrepresentational account of sensorimotor mastery and a theory of agency.
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4

Wittman, David M. A First Look at Relativity. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780199658633.003.0001.

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The heart of relativity is the supposition that the laws of physics are the same in all coordinate systems. This chapter builds a foundation by defining coordinate systems (also called frames of reference or simply frames) and examining some quantities that are coordinate‐dependent and others that are coordinate‐independent; the latter turn out to be more physically meaningful. Galileo first considered relationships between coordinate systems moving at different veloCities; in modern terms this could relate a coordinate system attached to the ground to one attached to a moving train. Given your velocity relative to the train, and the train‐ground relative velocity, Galileo developed a law for inferring your velocity relative to the ground. If this Galilean velocity addition law is correct, there are profound implications: nature must have no speed limit, and the laws of motion must be the same in any constant‐velocity frame.
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5

The effects of different types of softball covers on velocity and rotation of pitches. 1987.

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6

The effects of different types of softball covers on velocity and rotation of pitches. 1986.

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7

Isett, Philip. Checking Frequency Energy Levels for the Velocity and Pressure. Princeton University Press, 2017. http://dx.doi.org/10.23943/princeton/9780691174822.003.0024.

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This chapter checks frequency energy levels for the velocity and pressure. It begins by comparing the different estimates obtained for the corrections to the velocity and the pressure with the Main Lemma. It then considers bounds that will be established for a particular constant C once the constant Bsubscript Greek Small Letter Lamda has been chosen. It also checks whether the frequency and energy levels of the new velocity and pressure are consistent with the claims of the Main Lemma (10.1). To complete the proof of the Main Lemma (10.1), it now only remains to choose a constant Bsubscript Greek Small Letter Lamda so that (243) and (244) can be verified for the new energy levels. This choice of Bλ‎ is the last step of the proof.
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8

Voigt, Jens-Uwe. Quantification of left ventricular function and synchrony using tissue Doppler, strain imaging, and speckle tracking. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199599639.003.0006.

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Modern echocardiographic systems allow the quantitative and qualitative assessment of regional myocardial function by measuring velocity, motion, deformation, and other parameters of myocardial function.Both colour Doppler (CD) and spectral Doppler modes provide one-dimensional estimates of velocity. From CD data only, further parameters can be derived. Tracking techniques have recently been introduced which provide all parameters two-dimensionally, but at the cost of lower temporal resolution.Several clinical applications have been proposed, including regional and global systolic function assessment, evaluation of diastolic cardiac properties, and assessment of ventricular dyssynchrony.This chapter provides an introduction to the method of Doppler- and tracking-based function assessment and provides a basis for understanding its different clinical applications.
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9

Cameli, Matteo, Partho Sengupta, and Thor Edvardsen. Deformation echocardiography. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780198726012.003.0004.

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Echocardiographic strain imaging, also known as deformation imaging, has been developed as a means to objectively quantify regional and global myocardial function. First introduced as a post-processing feature of tissue Doppler imaging velocity converted to strain and strain rate, strain imaging has more recently also been derived from speckle tracking analysis. Tissue Doppler imaging yields velocity information from which strain and strain rate are mathematically derived whereas two-dimensional speckle tracking yields strain information from which strain rate and velocity data are derived. Data obtained from these two different techniques may not be equivalent due to limitations inherent with each technique. Speckle tracking analysis can generate longitudinal, circumferential, and radial strain measurements and left ventricular twist. Although potentially useful, these measurements are also complicated and frequently displayed as difficult-to-interpret waveforms. Strain imaging is now considered a robust research tool and has great potential to play many roles in routine clinical practice. This chapter explains the fundamental concepts of deformation imaging, the technical features of strain imaging using tissue Doppler imaging and speckle tracking, and the strengths and weaknesses of these methods.
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10

Rajeev, S. G. Boundary Layers. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198805021.003.0007.

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It is found experimentally that all the components of fluid velocity (not just thenormal component) vanish at a wall. No matter how small the viscosity, the large velocity gradients near a wall invalidate Euler’s equations. Prandtl proposed that viscosity has negligible effect except near a thin region near a wall. Prandtl’s equations simplify the Navier-Stokes equation in this boundary layer, by ignoring one dimension. They have an unusual scale invariance in which the distances along the boundary and perpendicular to it have different dimensions. Using this symmetry, Blasius reduced Prandtl’s equations to one dimension. They can then be solved numerically. A convergent analytic approximation was also found by H. Weyl. The drag on a flat plate can now be derived, resolving d’Alembert’s paradox. When the boundary is too long, Prandtl’s theory breaks down: the boundary layer becomes turbulent or separates from the wall.
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11

Mahmoud, Sabri A. Motion detection and velocity computation of moving objects in time-varying image sequences: Application of the Exponential Area Transform in computation of presence and velocity of objects of different sizes and occurances.. Bradford, 1987.

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12

Succi, Sauro. The Hermite–Gauss Route to LBE. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780199592357.003.0015.

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This chapter describes the side-up approach to Lattice Boltzmann, namely the formal derivation from the continuum Boltzmann-(BGK) equation via Hermite projection and subsequent evaluation of the kinetic moments via Gauss–Hermite quadrature. From a slightly different angle, one may also interpret the Gauss–Hermite quadrature as an optimal sampling of velocity space, or, better still, an exact sampling of the bulk of the distribution function, the one contributing most to the lowest order kinetic moments (frequent events). Capturing higher–order moments, beyond hydrodynamics (rare events), requires an increasing number of nodes and weights.
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13

Lancellotti, Patrizio, and Bernard Cosyns. Examination. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780198713623.003.0001.

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Echocardiography is a diagnostic imaging technique by which ultrasound is used to display anatomic and physiologic characteristics of the cardiovascular system. Echocardiography consists of several different imaging modalities that require appropriate settings. In this chapter the most important system settings are discussed in the context of the basic physics of ultrasound image formation. Setting-up the echo machine to optimize patient examination is discussed in detail. All controls are covered. Continuous-wave, pulsed-wave, and colour flow Doppler are explained, as well as more advanced techniques including myocardial velocity imaging and speckle tracking and 3D imaging. Understanding these basic principles will allow optimizing image quality for each individual patient.
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14

Blundell, Katherine. 1. What is a black hole? Oxford University Press, 2015. http://dx.doi.org/10.1093/actrade/9780199602667.003.0001.

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A black hole is a region of space where the force of gravity is so strong that nothing, not even light, can travel fast enough to escape from its interior. ‘What is a black hole?’ outlines how they were first conceived by theoretical physicists such as John Michell, Henry Cavendish, Pierre-Simon Laplace, and Albert Einstein, and explains the concepts of singularity, escape velocity, the event horizon, and spacetime. Black holes have now been identified in the Universe in their hundreds and accounted for in their millions. Although invisible, these objects interact with and influence their surroundings in different ways depending on proximity relative to the black hole.
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15

Mann, Peter. Point Transformations in Lagrangian Mechanics. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198822370.003.0009.

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This chapter discusses point transformations in Lagrangian mechanics. Sometimes, when solving problems, it is useful to change coordinates in velocity phase space to better suit and simplify the system at hand; this is a requirement of any physical theory. This change is often motivated by some experimentally observed physicality of the system or may highlight new conserved quantities that might have been overlooked using the old description. In the Newtonian formalism, it was a bit of a hassle to change coordinates and the equations of motion will look quite different. In this chapter, point transformations in Lagrangian mechanics are developed and the Euler–Lagrange equation is found to be covariant. The chapter discusses coordinate transformations, parametrisation invariance and the Jacobian of the transform. Re-parametrisations are also included.
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16

Sen, Mrinal K. Seismic Inversion. Society of Petroleum EngineersRichardson, Texas, USA, 2006. http://dx.doi.org/10.2118/9781555631109.

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Seismic inversion is now commonly used on post-stack and pre-stack seismic data for estimating rock properties used in reservoir characterization. While seismic migration is aimed at imaging the reflectors or the interfaces at their correct subsurface locations, seismic inversion attempts to estimate elastic and flow properties of the layers bounded by these interfaces. Seismic data are sensitive essentially to seismic wave velocity and density contrasts in the subsurface rocks. Because of significant overlap in elastic properties among different rock types, mapping of these elastic properties to rock types and estimating porosity are not trivial. Thus, seismic inversion is best done by combining data of all types such as seismic, well log, petrophysics and production history. The results of seismic inversion can be best interpreted by a team of geologists, geophysicists and reservoir engineers. The goal of this book is to explain the fundamental principles of seismic exploration, seismic wave propagation, and inversion in a language that is understandable by geoscientists and engineers alike so that the team is aware of the significance and limitations of the inversion results.
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17

Day, Jones Franklin. Mechanisms and Mechanical Movements: A Treatise on Different Types of Mechanisms and Various Methods of Transmitting, Controlling and Modifying Motion, to Secure Changes of Velocity, Direction, and Duration of Time of Action. Creative Media Partners, LLC, 2018.

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18

Day, Jones Franklin. Mechanisms and Mechanical Movements: A Treatise on Different Types of Mechanisms and Various Methods of Transmitting, Controlling and Modifying Motion, to Secure Changes of Velocity, Direction, and Duration of Time of Action. Creative Media Partners, LLC, 2018.

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19

Jones, Franklin Day. Mechanisms and Mechanical Movements; a Treatise on Different Types of Mechanisms and Various Methods of Transmitting, Controlling and Modifying Motion, to Secure Changes of Velocity, Direction, and Duration of Time of Action. Creative Media Partners, LLC, 2018.

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20

Pivokonský, Martin, Kateřina Novotná, Lenka Čermáková, and Radim Petříček, eds. Jar Tests for Water Treatment Optimisation. IWA Publishing, 2022. http://dx.doi.org/10.2166/9781789062694.

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Abstract The book is intended as a handbook providing detailed instructions for the correct conducting of jar tests, which are needed for the optimisation of the coagulation/flocculation process. It contains the essential theoretical background of coagulation/flocculation, including a description of the influence of different parameters on the coagulation efficiency of various impurities (e.g. pH value and type/dose of coagulant), and floc properties and their separation (e.g. mixing intensity, mixing time, but also type/concentration of coagulant and impurities). The principle of jar tests is explained and parameters possible to optimize (i.e. coagulation pH, coagulant dose, flocculation aid dose, mixing intensity and mixing time) are discussed. Laboratory equipment for jar tests is proposed, including mixers and instructions for calculating a mixing intensity (necessarily expressed by the global shear rate/velocity gradient G). Mixing intensities for various purposes are recommended. Detailed practical instructions of how to perform jar tests follow, including a determination of the dose of reagents for pH adjustment and coagulant dose, dosing sequence, floc separation after jar tests by sedimentation and/or centrifugation simulating sand filtration, sampling, measuring necessary parameters (pH, coagulant residuals, alkalinity, residual impurity concentrations etc.), data recording, data processing and jar test evaluation (with specific examples). The handbook also contains a supplementary part with tables for conversion of the molar to mass concentration (and vice versa) of coagulants, and instructions for diluting coagulants and reagents for pH adjustment. ISBN: 9781789062687 (paperback) ISBN: 9781789062694 (eBook) ISBN: 9781789062700 (ePUB)
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