Academic literature on the topic 'Single parameter scaling theory'

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Journal articles on the topic "Single parameter scaling theory"

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Qi, Jiang, and Chang-de Gong. "A single parameter scaling theory in a disordered layered system." Physics Letters A 127, no. 2 (1988): 105–8. http://dx.doi.org/10.1016/0375-9601(88)90393-3.

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Chakraverty, Snehashish, and Subrat Kumar Jena. "Free Vibration of Single Walled Carbon Nanotube Resting on Exponentially Varying Elastic Foundation." Curved and Layered Structures 5, no. 1 (2018): 260–72. http://dx.doi.org/10.1515/cls-2018-0019.

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Abstract In this article, free vibration of SingleWalled Carbon Nanotube (SWCNT) resting on exponentially varying Winkler elastic foundation is investigated by using Differential Quadrature Method (DQM). Euler-Bernoulli beam theory is considered in conjunction with the nonlocal elasticity theory of Eringen. Step by step procedure is included and MATLAB code has been developed to obtain the numerical results for different scaling parameters as well as for four types of edge conditions. Obtained results are validated with known results in special cases showing good agreement. Further, numerical
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Supponen, Outi, Danail Obreschkow, Marc Tinguely, Philippe Kobel, Nicolas Dorsaz, and Mohamed Farhat. "Scaling laws for jets of single cavitation bubbles." Journal of Fluid Mechanics 802 (August 3, 2016): 263–93. http://dx.doi.org/10.1017/jfm.2016.463.

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Fast liquid jets, called micro-jets, are produced within cavitation bubbles experiencing an aspherical collapse. Here we review micro-jets of different origins, scales and appearances, and propose a unified framework to describe their dynamics by using an anisotropy parameter $\unicode[STIX]{x1D701}\geqslant 0$, representing a dimensionless measure of the liquid momentum at the collapse point (Kelvin impulse). This parameter is rigorously defined for various jet drivers, including gravity and nearby boundaries. Combining theoretical considerations with hundreds of high-speed visualisations of
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Kalsi, Tara, Alessandro Romito, and Henning Schomerus. "Spectral chaos bounds from scaling theory of maximally efficient quantum-dynamical scrambling." Quantum 9 (February 26, 2025): 1651. https://doi.org/10.22331/q-2025-02-26-1651.

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A key conjecture about the evolution of complex quantum systems towards an ergodic steady state, known as scrambling, is that this process acquires universal features when it is most efficient. We develop a single-parameter scaling theory for the spectral statistics in this scenario, which embodies exact self-similarity of the spectral correlations along the complete scrambling dynamics. We establish that the scaling predictions are matched by a privileged stochastic process and serve as bounds for other dynamical scrambling scenarios, allowing one to quantify inefficient or incomplete scrambl
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Arapov, Yu G., S. V. Gudina, A. S. Klepikova, et al. "The temperature dependence of the conductivity peak values in the single and the double quantum well nanostructures n-InGaAs/GaAs after IR-illumination." Физика и техника полупроводников 51, no. 2 (2017): 281. http://dx.doi.org/10.21883/ftp.2017.02.44119.8302.

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The dependences of the longitudinal and Hall resistances on a magnetic field in n-InGaAs/GaAs heterostructures with a single and double quantum wells after infrared illumination are measured in the range of magnetic fields B=0-16 T and temperatures T=0.05-4.2 K. Analysis of the experimental results was carried out on a base of two-parameter scaling hypothesis for the integer quantum Hall effect. The value of the second (irrelevant) critical exponent of the theory of two-parameter scaling was estimated. DOI: 10.21883/FTP.2017.02.44119.8302
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Yu, Nan, Guy Delrieu, Brice Boudevillain, Pieter Hazenberg, and Remko Uijlenhoet. "Unified Formulation of Single- and Multimoment Normalizations of the Raindrop Size Distribution Based on the Gamma Probability Density Function." Journal of Applied Meteorology and Climatology 53, no. 1 (2014): 166–79. http://dx.doi.org/10.1175/jamc-d-12-0244.1.

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AbstractThis study offers a unified formulation of single- and multimoment normalizations of the raindrop size distribution (DSD), which have been proposed in the framework of scaling analyses in the literature. The key point is to consider a well-defined “general distribution” g(x) as the probability density function (pdf) of the raindrop diameter scaled by a characteristic diameter Dc. The two-parameter gamma pdf is used to model the g(x) function. This theory is illustrated with a 3-yr DSD time series collected in the Cévennes region, France. It is shown that three DSD moments (M2, M3, and
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BIETENHOLZ, W., and T. STRUCKMANN. "PERFECT LATTICE PERTURBATION THEORY: A STUDY OF THE ANHARMONIC OSCILLATOR." International Journal of Modern Physics C 10, no. 04 (1999): 531–53. http://dx.doi.org/10.1142/s0129183199000413.

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As an application of perfect lattice perturbation theory, we construct an O(λ) perfect lattice action for the anharmonic oscillator analytically in momentum space. In coordinate space, we obtain a set of 2-spin and 4-spin couplings ∝λ, which we evaluate for various masses. These couplings never involve variables separated by more than two lattice spacings. The O(λ) perfect action is simulated and compared to the standard action. We discuss the improvement for the first two energy gaps ΔE1, ΔE2 and for the scaling quantity ΔE2/ΔE1 in different regimes of the interaction parameter, and of the co
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OKABE, YUTAKA, and MACOTO KIKUCHI. "UNIVERSAL FINITE-SIZE-SCALING FUNCTIONS." International Journal of Modern Physics C 07, no. 03 (1996): 287–94. http://dx.doi.org/10.1142/s0129183196000223.

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The idea of universal finite-size-scaling functions of the Ising model is tested by Monte Carlo simulations for various lattices. Not only regular lattices such as the square lattice but quasiperiodic lattices such as the Penrose lattice are treated. We show that the finite-size-scaling functions of the order parameter for various lattices are collapsed on a single curve by choosing two nonuniversal scaling metric factors. We extend the idea of the universal finite-size-scaling functions to the order-parameter distribution function. We pay attention to the effects of boundary conditions.
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Sivakumar, Adhithiya, and Jeffrey B. Weiss. "Volume Transport by a 3D Quasigeostrophic Heton." Fluids 7, no. 3 (2022): 92. http://dx.doi.org/10.3390/fluids7030092.

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Oceanic flows self-organize into coherent vortices, which strongly influence their transport and mixing properties. Counter-rotating vortex pairs can travel long distances and carry trapped fluid as they move. These structures are often modeled as hetons, viz. counter-rotating quasigeostrophic point vortex pairs with equal circulations. Here, we investigate the structure of the transport induced by a single three-dimensional heton. The transport is determined by the Hamiltonian structure of the velocity field induced by the heton’s component vortices. The dynamics display a sequence of bifurca
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YU, J., Y. NAMBA, and M. SHIOKAWA. "FRACTAL ROUGHNESS CHARACTERIZATION OF SUPER-GROUND Mn-Zn FERRITE SINGLE CRYSTALS." Fractals 04, no. 02 (1996): 205–11. http://dx.doi.org/10.1142/s0218348x96000285.

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The surface of superground Mn-Zn ferrite single crystal may be identified as a self-affine fractal in the stochastic sense. The rms roughness increased as a power of the scale from 102 nm to 106 nm with the roughness exponent α=0.17±0.04, and 0.11±0.06, for grinding feed rate of 15 and 10 μm/rev, respectively. The scaling behavior coincided with the theory prediction well used for growing self-affine surfaces in the interested region for magnetic heads performance. The rms roughnesses increased with increase in the feed rate, implying that the feed rate is a crucial grinding parameter affectin
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Dissertations / Theses on the topic "Single parameter scaling theory"

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Díez, Orrite Silvia. "Physico-chemical properties of polymers at interfaces." Doctoral thesis, Universitat Rovira i Virgili, 2002. http://hdl.handle.net/10803/8511.

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A polymer is a large molecule constructed from many smaller structural units called<br/>monomers joined together by covalent bonds. Polymers have existed in natural form<br/>since life began and those such as DNA, RNA, proteins and polysaccharides are some<br/>of the most important macromolecules found in plant and animal life. From the earliest<br/>times, the man has used many of these polymers as materials for providing clothing,<br/>decoration, tools, weapons and other requirements. However, the origins of today's<br/>polymer industry commonly are accepted as being in the nineteenth century
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Pérez, Pellitero Javier. "Improvement of monte carlo algorithms and intermolecular potencials for the modelling of alkanois, ether thiophenes and aromatics." Doctoral thesis, Universitat Rovira i Virgili, 2007. http://hdl.handle.net/10803/8550.

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Durante la última década y paralelamente al incremento de la velocidad de computación, las técnicas de simulación molecular se han erigido como una importante herramienta para la predicción de propiedades físicas de sistemas de interés industrial. Estas propiedades resultan esenciales en las industrias química y petroquímica a la hora de diseñar, optimizar, simular o controlar procesos. El actual coste moderado de computadoras potentes hace que la simulación molecular se convierta en una excelente opción para proporcionar predicciones de dichas propiedades. En particular, la capacidad predicti
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Sutradhar, Jagannath. "Transport, localization and entanglement in disordered and interacting systems: From real space to Fock space." Thesis, 2021. https://etd.iisc.ac.in/handle/2005/5592.

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In this thesis, we explore some of the exciting physics of condensed matter systems manifested because of imperfection or disorder and interactions among the constituent particles. In phenomena like transport, e.g., electrical current; localization, e.g., confinement of electrons only within a small part of a system; entanglement (a correlation among the constituents particle); disorder and interaction play essential roles. These three properties are our main focus in the thesis. There are six chapters. In the first chapter, we introduce a few landmarks in the field to set the stage and
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Books on the topic "Single parameter scaling theory"

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Street, Brian. The Calder´on-Zygmund Theory II: Maximal Hypoellipticity. Princeton University Press, 2017. http://dx.doi.org/10.23943/princeton/9780691162515.003.0002.

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This chapter remains in the single-parameter case and turns to the case when the metric is a Carnot–Carathéodory (or sub-Riemannian) metric. It defines a class of singular integral operators adapted to this metric. The chapter has two major themes. The first is a more general reprise of the trichotomy described in Chapter 1 (Theorem 2.0.29). The second theme is a generalization of the fact that Euclidean singular integral operators are closely related to elliptic partial differential equations. The chapter also introduces a quantitative version of the classical Frobenius theorem from different
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Street, Brian. Multi-parameter Carnot-Carath´eodory Geometry. Princeton University Press, 2017. http://dx.doi.org/10.23943/princeton/9780691162515.003.0003.

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This chapter develops the theory of multi-parameter Carnot–Carathéodory geometry, which is needed to study singular integral operators. In the case when the balls are of product type, all of the results are simple variants of results in the single-parameter theory. When the balls are not of product type, these ideas become more difficult. What saves the day is the quantitative Frobenius theorem given in Chapter 2. This can be used to estimate certain integrals, as well as develop an appropriate maximal function and an appropriate Littlewood–Paley square function, all of which are essential to
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Street, Brian. The Calder´on-Zygmund Theory I: Ellipticity. Princeton University Press, 2017. http://dx.doi.org/10.23943/princeton/9780691162515.003.0001.

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This chapter discusses a case for single-parameter singular integral operators, where ρ‎ is the usual distance on ℝn. There, we obtain the most classical theory of singular integrals, which is useful for studying elliptic partial differential operators. The chapter defines singular integral operators in three equivalent ways. This trichotomy can be seen three times, in increasing generality: Theorems 1.1.23, 1.1.26, and 1.2.10. This trichotomy is developed even when the operators are not translation invariant (many authors discuss such ideas only for translation invariant, or nearly translatio
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Succi, Sauro. Lattice Relaxation Schemes. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780199592357.003.0014.

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In Chapter 13, it was shown that the complexity of the LBE collision operator can be cut down dramatically by formulating discrete versions with prescribed local equilibria. In this chapter, the process is taken one step further by presenting a minimal formulation whereby the collision matrix is reduced to the identity, upfronted by a single relaxation parameter, fixing the viscosity of the lattice fluid. The idea is patterned after the celebrated Bhatnagar–Gross–Krook (BGK) model Boltzmann introduced in continuum kinetic theory as early as 1954. The second part of the chapter describes the co
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Thurner, Stefan, Rudolf Hanel, and Peter Klimekl. The Future of the Science of Complex Systems? Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198821939.003.0007.

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The chapter is a mini outlook on the field. The classic achievenments in complexity science are mentioned, and we summarize how the new directions contained in this book might open new doors into a truly twenty-first-century science of complex systems.We do that by clarifying the origin of scaling laws, in particular for driven non-equilibrium systems, deriving the statistics of driven systems on the basis of driving and relaxing processes, categorizing probabilistic complex systems into universality classes, by developing ways for meaningful generalizations of statistical mechanics, and infor
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Yust, Jason. Organized Time. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190696481.001.0001.

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This book presents a theory of temporal structure for music, making two main arguments. The first is that a single model of temporal structure, expressible in the form of a certain type of mathematical network, is common to all modalities, particularly rhythm, tonality, and form. As a result, we can develop tools to talk about the experience of musical time in abstraction from any particular modality, and make analogies from structural phenomena in one modality to another (e.g., formal counterpoint). The second argument is that each of these modalities is in principle independent: it has its o
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Book chapters on the topic "Single parameter scaling theory"

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Ohtsuki, Tomi, and Keith Slevin. "Corrections to Single Parameter Scaling at the Anderson Transition." In Anderson Localization and Its Ramifications. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-540-45202-7_3.

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Goel, Gagan, Chinmay Karande, and Lei Wang. "Single-Parameter Combinatorial Auctions with Partially Public Valuations." In Algorithmic Game Theory. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-16170-4_21.

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Bartels, Sören, and Alexander Raisch. "Simulation of Q-Tensor Fields with Constant Orientational Order Parameter in the Theory of Uniaxial Nematic Liquid Crystals." In Singular Phenomena and Scaling in Mathematical Models. Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-00786-1_17.

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Post, Wendy J., Marijtje A. J. van Duijn, and Berna van Baarsen. "Single-Peaked or Monotone Tracelines? On the Choice of an IRT Model for Scaling Data." In Essays on Item Response Theory. Springer New York, 2001. http://dx.doi.org/10.1007/978-1-4613-0169-1_21.

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Xu, Liu-Jun, and Ji-Ping Huang. "Theory for Coupled Thermoelectric Metamaterials: Bilayer Scheme." In Transformation Thermotics and Extended Theories. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-5908-0_7.

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AbstractIn this chapter, we theoretically design bilayer thermoelectric metamaterials based on the generalized scattering-cancellation method. By solving the governing equations directly, we formulate the specific parameter requirements for desired functionalities beyond existing single-field or decoupled multi-field Laplacian metamaterials. Unlike the recently reported transformation thermoelectric flows, bilayer schemes do not require inhomogeneity and anisotropy in constitutive materials. Finite-element simulations confirm the analytical results and show robustness under various exterior conditions. Feasible experimental design with naturally occurring materials is also proposed for further proof-of-principle verification. Our theoretical method may be extended to other coupled multiphysical systems such as thermo-optics, thermomagnetics, and optomechanics.
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Bertlmann, Reinhold A., and Nicolai Friis. "Quantum Metrology." In Modern Quantum Theory. Oxford University PressOxford, 2023. http://dx.doi.org/10.1093/oso/9780199683338.003.0024.

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Abstract Chapter 24 provides a compact introduction to the topic of quantum metrology, focusing on Hamiltonian parameter estimation in the frequentist and in the Bayesian paradigms. We first discuss how estimates of non-directly measurable quantities such as phases are obtained from measurement statistics in the frequentist approach. We then discuss the Cramér-Rao bound and the Fisher information and study single-qubit phase estimation in the light of this result. We then turn to the multi-qubit setting and discuss the quantum Cramér-Rao bound, for which the quantum Fisher information is the central quantity of interest. In this context we discuss the Uhlmann fidelity in detail. We further contrast Heisenberg scaling with the standard quantum limit in the phase-estimation scenario. Finally, we analyse phase estimation in the Bayesian-estimation approach and derive the van Trees inequality as a Bayesian version of the Cramér-Rao bound
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Wake, G. C., J. B. Burnell, J. G. Graham-Eagle, and B. F. Gray. "A new scaling of a problem in combustion theory." In Reaction-Diffusion Equations. Oxford University PressOxford, 1990. http://dx.doi.org/10.1093/oso/9780198533788.003.0002.

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Abstract The well-established approach to the theory of thermal ignition expresses the heat balance equation in terms of the dimensionless variables introduced by FrankKamenetskii( 1955). Unfortunately, this choice of scaling confuses the role of ambient temperature to such an extent that it is almost impossible to consider the effect of varying the ambient temperature alone. The purpose of this paper is to use different dimensionless variables which allow the ambient temperature to be varied independently of the remaining system parameters. The problem obtained from this approach is nonstandard in as much as the bifurcation parameter occurs in the boundary condition, but it is nevertheless amenable to treatment by the usual methods of functional analysis; see Burnell et al. (1989) for a summary of results.
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Polanco, Carlos. "Functions using a Single Variable." In Fundamentals of Mathematics in Medical Research: Theory and Cases. BENTHAM SCIENCE PUBLISHERS, 2024. http://dx.doi.org/10.2174/9789815223132124010005.

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In this chapter, we will delve into a variety of fundamental subjects related to the study of real functions and the transformations of such functions. To begin, we will investigate the absolute value, as well as the absolute value function, and examine the behavior and attributes of each of these concepts. Next, we will delve deeper into the world of functions, concentrating on the functions that are associated with a single variable and the graphical representations of these functions. As we move further, we will investigate the most important real-valued functions, such as polynomial functions and piecewise-defined functions, amongst others. Because of these functions, we are able to acquire a deeper comprehension of transformations and how they have an effect on function graphs. In this lesson, we will investigate the scaling and translating transformations, focusing on how they affect the features of functions. Examples and activities are presented throughout the chapter to help readers better understand the fundamental ideas behind graphical representation and function analysis.
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Coolen, A. C. C. "Preparing the stage for statistical mechanics." In The Mathematical Theory of Minority Games. Oxford University PressOxford, 2005. http://dx.doi.org/10.1093/oso/9780198520801.003.0002.

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Abstract We seem to have collected most of the information needed to launch a statistical mechanical analysis of the MG. We have established that the key control parameter in the MG should be α = 2M /N , and that for infinte α we may expect the limit N∞ to give well-defined statistics for the overall bids A(.e). We know which quantities to inspect, e.g. the volatility and the fraction of frozen agents. However, there remain issues that have not yet been resolved, such as the scaling with N of the characteristic timescales of the process (which do influence theory and simulations); these will be dealt with in the present chapter.
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Bransden, B. H., and M. R. C. McDowell. "Applications of the Coupled Channel Impact Parameter Model." In Charge Exchange and the Theory of Ion-Atom Collisions. Oxford University PressOxford, 1992. http://dx.doi.org/10.1093/oso/9780198520207.003.0006.

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Abstract In this chapter a number of illustrative examples of the application of the coupled channel impact parameter model introduced in Chapter 3 and developed in Chapter 5 will be discussed. First let us recollect the conditions under which this model can be applied. A basic assumption is that the internuclear motion can be described by a single classical trajectory determined by an effective potential W(R) at an energy in the centre-of-mass system of E = µv6/2. The resulting coupled equations for the probability amplitudes A/b, t) are of the form (3.205). The conditions for the validity of these equations, or the equivalent set of equations (3.131), were analysed in Section 3.6. They can be summarized as follows.
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Conference papers on the topic "Single parameter scaling theory"

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Ciolkowski, Michal, and Anne Neville. "A Systematic Scale-corrosion Study of a Combined Inhibitor in Scale-corrosion Environment via Experimental Design." In CORROSION 2014. NACE International, 2014. https://doi.org/10.5006/c2014-3960.

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Abstract The scale-corrosion performance of combined inhibitors for oilfield has been assessed under scale-corrosion conditions in a newly developed bubble cell/jar test. The general corrosion of carbon steel X65, localised corrosion, bulk scale precipitation and surface scale deposition have been determined by various techniques (Linear Polarisation Resistance, contact 3D profiler, Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray Analysis (EDX), X-ray diffraction (XRD) and Turbidity-meter). The parameters used in this study are temperature, supersaturation ratio with respect to
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Kantan, Prithvi Ravi, Sofia Dahl, and Erika G. Spaich. "Adapting Audio Mixing Principles and Tools to Parameter Mapping Sonification Design." In ICAD 2024: The 29th International Conference on Auditory Display. International Community for Auditory Display, 2024. http://dx.doi.org/10.21785/icad2024.034.

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Designing a parameter mapping sonification (PMSon) involves defining a mapping function that determines how data variables affect audio signal parameters. The mapping function is represented using mathematical notation and/or characterized in terms of scaling, transfer function and polarity; both approaches manifest in software platforms for PMSon design. Math notation is not always directly relatable to complex design requirements, and simple characterizations lack generality and may be ambiguous - both issues hamper mapping function design, conceptualization, and dissemination. We seek to ad
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Das, Gaurav, Ronald D. Springer, Jerzy Kosinski, and Andre Anderko. "Induction Time Modeling for Common Scaling Minerals in the Absence and Presence of Inhibitors Using a Novel Theoretical Framework." In CONFERENCE 2023. AMPP, 2023. https://doi.org/10.5006/c2023-18805.

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Abstract Mineral scaling in the oil and gas industry poses a significant challenge for flow assurance due to changes in process conditions, such as pressure and temperature changes, dissolved gases, or incompatibility between waters that are mixed in waterflooding process and chemical treatment operations. This study focuses on understanding the scaling threat of common mineral scales (barite, celestine, gypsum, calcite) and on the effectiveness of phosphonate inhibitors at various solution conditions including the concentrations of background electrolytes and temperature. We propose a novel m
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Sim, Ben, Eric Greenwood, and D. Boyd. "The Effects of Ambient Conditions on Helicopter Harmonic Noise Radiation: Theory and Experiment." In Vertical Flight Society 72nd Annual Forum & Technology Display. The Vertical Flight Society, 2016. http://dx.doi.org/10.4050/f-0072-2016-11344.

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The effects of ambient atmospheric conditions, air temperature and density, on rotor harmonic noise radiation are characterized using theoretical models and experimental measurements of helicopter noise collected at three different test sites at elevations ranging from sea level to 7000 ft above sea level. Significant changes in the thickness, loading, and blade-vortex interaction noise levels and radiation directions are observed across the different test sites for an AS350 helicopter flying at the same indicated airspeed and gross weight. However, the radiated noise is shown to scale with am
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Podhiny, John J., and Alfonso Ortega. "Analysis of Single-Phase Multi-Layer Heat Sinks Using a Porous Media Approach: Influence of Spatially Varying Porosity." In ASME 2013 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/ipack2013-73189.

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Prior analyses and experiments have demonstrated that varying or scaling the number of fluid channels in each layer of a stacked multi-layer heat sink yields distinct advantages over traditional single-layer designs which use channels with high aspect ratios. Specifically, a design which implements scaling in order to vary the porosity (or equivalently, the number of channels) from one layer to the next allows a given thermal performance to be realized at a lower pressure drop than the corresponding non-scaled design. While previous studies use porous media theory for their analytical foundati
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Bryant, Carol E., and James L. Rutledge. "Theoretical Considerations for Scaling Convection in Overall Effectiveness Experiments." In ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/gt2022-81508.

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Abstract An increasingly common experimental technique allows measurement of overall effectiveness by matching the Biot number between experimental and engine conditions. The measured overall effectiveness distribution correlates to the expected turbine component temperature distribution. While a good deal of work has been devoted to determining the appropriate flow conditions necessary to scale adiabatic effectiveness, very little attention has been paid to the subtleties beyond matching the Biot number that arise when performing experiments on a conducting model to determine overall effectiv
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Fischer, Jacob P., James L. Rutledge, Luke J. McNamara, and Marc D. Polanka. "Scaling Flat Plate, Low Temperature Adiabatic Effectiveness Results Using the Advective Capacity Ratio." In ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gt2019-90997.

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Abstract Effective design of film cooled engine components requires the ability to predict behavior at engine conditions. This is commonly accomplished through low temperature testing on scaled up geometries. The adiabatic effectiveness, η, is one indicator of the performance of a film cooling scheme. Performing an experiment to measure η in a low temperature wind tunnel requires appropriate selection of the coolant flow rate. Perhaps the most common flow rate parameter that is used to characterize the coolant flow relative to the freestream is the mass flux ratio, or blowing ratio, M. This is
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Brzek, Brian, Rau´l Bayoa´n Cal, Gunnar Johansson, and Luciano Castillo. "LDA Measurements in Rough Surface ZPG Turbulent Boundary layers." In ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/fedsm2006-98508.

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A new set of experiments have been performed in order to study the effects of the upstream conditions and the surface roughness on a zero pressure gradient turbulent boundary layer. In order to properly capture the x-dependence of the single point statistics, consecutive measurements of 11 streamwise locations were performed. These 2-D Laser Doppler Anemometry (LDA) measurements enable us to use the full boundary layer equations in order to calculate the skin friction and determine the boundary layer development which is not possible in the majority of experiments on rough surfaces. It will be
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Ju, Ren, Wei Fan, and Weidong Zhu. "A Universal Nonlinear Analyzer for Rigid Multibody Systems Based on the Efficient Galerkin Averaging-Incremental Harmonic Balance Method." In ASME 2021 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/detc2021-68548.

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Abstract The bridge between the multibody dynamic modeling theory and nonlinear dynamic analysis theory is built for the first time in this work by introducing an efficient Galerkin averaging-incremental harmonic balance (EGA-IHB) method for steady-state nonlinear dynamic analysis of index-3 differential algebraic equations (DAEs) for general rigid multibody systems. The multibody dynamic modeling theory has made significant advances in generality and simplicity, and multibody systems are usually governed by DAEs. Since the fast Fourier transform and EGA are used, the EGA-IHB method has excell
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Palmer, Iain, Mehdi Mokhtarishirazabad, Andrew Moffat, and Mahmoud Mostafavi. "Effects of In-Plane and Out-of-Plane Constraint on Fracture Toughness in Austenitic Stainless Steel." In ASME 2019 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/pvp2019-93660.

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Abstract An improved understanding of the failure behaviour of safety critical component could result in substantial benefits for industry; these include a reduction in design constraints resulting in optimised and cheaper designs, reduced risk and therefore cost. Yet surprisingly, there is little information in design and assessment codes on the behaviour of thin sections. The aim of this paper is to investigate the fracture of thin sections, with reduced out-of-plane plastic constraint, by using a unified measure of constraint. A range of single edge notched bend specimen made of stainless s
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Reports on the topic "Single parameter scaling theory"

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Stewart, Jonathan, Grace Parker, Joseph Harmon, et al. Expert Panel Recommendations for Ergodic Site Amplification in Central and Eastern North America. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, 2017. http://dx.doi.org/10.55461/tzsy8988.

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The U.S. Geological Survey (USGS) national seismic hazard maps have historically been produced for a reference site condition of VS30 = 760 m/sec (where VS30 is time averaged shear wave velocity in the upper 30 m of the site). The resulting ground motions are modified for five site classes (A-E) using site amplification factors for peak acceleration and ranges of short- and long-oscillator periods. As a result of Project 17 recommendations, this practice is being revised: (1) maps will be produced for a range of site conditions (as represented by VS30 ) instead of a single reference condition;
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Dawalibi. L51925 Detection of Anomalies in Coated Pipelines Using Long Range Ultrasonics. Pipeline Research Council International, Inc. (PRCI), 2002. http://dx.doi.org/10.55274/r0010644.

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Long-range guided wave pipeline inspection is claimed to be able to inspect ranges of well over 30 meters (100 Feet) in either direction (i.e. total inspection greater than 60 Meters or 200 Ft.) from a single position. In terms of inspected meters per measurement and cost per meter this technique can be a fundamental improvement from conventional methods for pipeline inspection. For inspection of hard-to-access locations it offers a good on-stream screening alternative by being able to image the pipe section from an easier-access location. Examples of inaccessible locations are road-, railway-
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Beason, Scott, Taylor Kenyon, Robert Jost, and Laurent Walker. Changes in glacier extents and estimated changes in glacial volume at Mount Rainier National Park, Washington, USA from 1896 to 2021. National Park Service, 2023. http://dx.doi.org/10.36967/2299328.

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Surface area of glaciers and perennial snow within Mount Rainier National Park were delineated based on 2021 aerial Structure-from-Motion (SfM) and satellite imagery to document changes to glaciers over the last 125 years. These extents were compared with previously completed databases from 1896, 1913, 1971, 1994, 2009, and 2015. In addition to the glacial features mapped at the Park, any snow patches noted in satellite- and fixed-wing- acquired aerial images in September 2021 were mapped as perennial snowfields. In 2021, Mount Rainier National Park contained a total of 28 named glaciers which
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Mojidra, Rushil, and Keri Ryan. Influence of Vertical Ground Motion on Bridges Isolated with Spherical Sliding Bearings. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, 2019. http://dx.doi.org/10.55461/rynq3624.

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The motivation for this project developed from testing of a full scale building isolated with triple friction pendulum bearings on the E-defense shake table in Japan. The test demonstrated experimentally that the vertical component of ground motion can amplify both the base shear and the story acceleration in the isolated building. Vertical shaking introduced high-frequency variation in the axial force of the bearings, and, consequently, a high-frequency component in the bearing lateral force, which excited higher structural modes in the building. Since vertical bridges are flexible in the ver
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