Relevant bibliographies by topics / Harmonic partials

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Harmonic partials'

Author: Grafiati
Published: 4 June 2021
Last updated: 17 February 2022

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Journal articles on the topic "Harmonic partials"

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Fine, Philip A., and Brian C. J. Moore. "Frequency Analysis and Musical Ability." Music Perception 11, no. 1 (1993): 39–53. http://dx.doi.org/10.2307/40285598.

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Soderquist (Psychonomic Science, 1970, 21,117–119) found that musicians were better than nonmusicians at separating out ("hearing out") partials from complex tones and proposed that this might be explained by the musicians having sharper auditory filters. In Experiment 1, the auditory filters of two groups, musicians and nonmusicians, were measured at three center frequencies by using a notched-noise masker. The filters were found not to differ in bandwidth between the two groups. However, the efficiency of the detection process after auditory filtering was significantly different between the two groups: the musicians were more efficient. In Experiment 2, the ability to hear out partials in a complex inharmonic tone was measured for the same two groups, using a tone produced by "stretching" the spacing between partials in a harmonic complex tone. Unfortunately, most of the nonmusicians were unable to perform this task. The ability of the musicians to hear out partials was not significantly correlated with the auditory filter bandwidths measured in Experiment 1. The musicians were also tested on the original harmonic complex tone (before "stretching"). For some partials, their performance was better for the inharmonic tone, reflecting the fact that the separation of the partials in frequency was greater for that tone. However, it was also found that those partials that were octaves of the fundamental in the harmonic series were identified better than corresponding partials in the inharmonic tone.
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Nicholson, Thomas, and Marc Sabat. "FAREY SEQUENCES MAP PLAYABLE NODES ON A STRING." Tempo 74, no. 291 (December 19, 2019): 86–97. http://dx.doi.org/10.1017/s0040298219001001.

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AbstractNatural harmonics, i.e. partials and their harmonic series, may be isolated on a vibrating string by lightly touching specific points along its length. In addition to the two endpoints, stationary nodes for a given partial n present themselves at n − 1 locations along the string, dividing it into n parts of equal length. It is not the case, however, that touching any one of these nodes will necessarily isolate the nth partial and its integer multiples. The subset of nodes that will activate the nth partial (termed playable nodes by the authors) may be derived by following a mathematically predictable pattern described by so-called Farey sequences. The authors derive properties of these sequences and connect them to physical phenomena. This article describes various musical applications: locating single natural harmonics, forming melodies of neighbouring harmonics, sounding multiphonic aggregates, as well as predicting the relative tuneability of just intervals.
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de Cheveigné, Alain. "Harmonic fusion and pitch shifts of mistuned partials." Journal of the Acoustical Society of America 102, no. 2 (August 1997): 1083–87. http://dx.doi.org/10.1121/1.419612.

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Tervaniemi, M., T. Ilvonen, J. Sinkkonen, A. Kujala, K. Alho, M. Huotilainen, and R. Näätänen. "Harmonic partials facilitate pitch discrimination in humans: electrophysiological and behavioral evidence." Neuroscience Letters 279, no. 1 (January 2000): 29–32. http://dx.doi.org/10.1016/s0304-3940(99)00941-6.

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Moore, Brian C. J., Brian R. Glasberg, and Robert W. Peters. "Thresholds for hearing mistuned partials as separate tones in harmonic complexes." Journal of the Acoustical Society of America 80, no. 2 (August 1986): 479–83. http://dx.doi.org/10.1121/1.394043.

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Dai, Huanping. "Harmonic pitch: Dependence on resolved partials, spectral edges, and combination tones." Hearing Research 270, no. 1-2 (December 2010): 143–50. http://dx.doi.org/10.1016/j.heares.2010.08.002.

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Brunstrom, Jeffrey M., and Brian Roberts. "Profiling the perceptual suppression of partials in periodic complex tones: Further evidence for a harmonic template." Journal of the Acoustical Society of America 104, no. 6 (December 1998): 3511–19. http://dx.doi.org/10.1121/1.423934.

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Milne, Andrew J., Robin Laney, and David B. Sharp. "Testing a spectral model of tonal affinity with microtonal melodies and inharmonic spectra." Musicae Scientiae 20, no. 4 (August 1, 2016): 465–94. http://dx.doi.org/10.1177/1029864915622682.

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Tonal affinity is the perceived goodness of fit of successive tones. It is important because a preference for certain intervals over others would likely influence preferences for, and prevalences of, “higher-order” musical structures such as scales and chord progressions. We hypothesize that two psychoacoustic (spectral) factors—harmonicity and spectral pitch similarity—have an impact on affinity. The harmonicity of a single tone is the extent to which its partials (frequency components) correspond to those of a harmonic complex tone (whose partials are a multiple of a single fundamental frequency). The spectral pitch similarity of two tones is the extent to which they have partials with corresponding, or close, frequencies. To ascertain the unique effect sizes of harmonicity and spectral pitch similarity, we constructed a computational model to numerically quantify them. The model was tested against data obtained from 44 participants who ranked the overall affinity of tones in melodies played in a variety of tunings (some microtonal) with a variety of spectra (some inharmonic). The data indicate the two factors have similar, but independent, effect sizes: in combination, they explain a sizeable portion of the variance in the data (the model-data squared correlation is r2 = .64). Neither harmonicity nor spectral pitch similarity require prior knowledge of musical structure, so they provide a potentially universal bottom-up explanation for tonal affinity. We show how the model—as optimized to these data—can explain scale structures commonly found in music, both historical and contemporary, and we discuss its implications for experimental microtonal and spectral music.
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Rupprecht, Philip. "ABOVE AND BEYOND THE BASS: HARMONY AND TEXTURE IN GEORGE BENJAMIN'S ‘VIOLA, VIOLA’." Tempo 59, no. 232 (April 2005): 28–38. http://dx.doi.org/10.1017/s0040298205000136.

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George Benjamin's rich harmonic imagination was apparent from his earliest published works. A distinctive chordal sensibility is already evident in the 1978 Piano Sonata, with its glittering streams of five- or six-pitch clusters; in the hollow bell-chords punctuating the 1979 orchestral score, Ringed by the Flat Horizon; and in the supreme stasis of the A-minor pedal chord (a six-three triad) unveiled by the icy glissandi lines opening A Mind of Winter (1981). All three pieces share a fascination with degrees of chordal resonance – the interplay of upper partials above a fundamental – and a sensitivity to chords as sound objects. True, Benjamin's style, beginning at least with Antara (1987), has shown signs of a more linear-contrapuntal orientation, and less reliance on what one critic terms ‘purely coloristic phenomena’. Yet one could equally claim some continuity between the refined harmonic world of the early scores and the surprising richness of chordal sonority to be heard in a far more recent arrival, the 1997 duo Viola, Viola.
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Walter, Caspar Johannes. "MULTIPHONICS ON VIBRATING STRINGS." Tempo 74, no. 291 (December 19, 2019): 7–23. http://dx.doi.org/10.1017/s0040298219000950.

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AbstractMultiphonics on vibrating strings have been an important element in my compositions since the early 1990s. In order to calculate the frequency components of so-called pure multiphonics (multiphonics consisting of harmonic partials of the fundamental) on vibrating strings, I developed my fraction windowing algorithm. The first section of this article details the use of multiphonics in my compositions and the second section discusses how the fraction windowing algorithm works and its relationship to the closely related mathematical concept of a continued fraction. The article also discusses the online apps I have developed as tools for composers and performers who are interested in using these methods in their own work on string multiphonics.
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Dissertations / Theses on the topic "Harmonic partials"

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Eyring, Nicholas J. "Development and Validation of an Automated Directivity Acquisition System Used in the Acquisition, Processing, and Presentation of the Acoustic Far-Field Directivity of Musical Instruments in an Anechoic Space." BYU ScholarsArchive, 2013. https://scholarsarchive.byu.edu/etd/4004.

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A high spatial resolution acoustic directivity acquisition system (ADAS) has been developed to acquire anechoic measurements of the far field radiation of musical instruments that are either remote controlled or played by musicians. Building upon work performed by the BYU Acoustic Research Group in the characterization of loudspeaker directivity, one can rotate a musical instrument with sequential azimuthal angle increments under a fixed semicircular array of microphones while recording repeated notes or sequences of notes. This results in highly detailed and instructive directivity data presented in the form of high-resolution balloon plots. The directivity data and corresponding balloon plots may be shown to vary as functions of time or frequency. This thesis outlines the development of a prototype ADAS and its application to different sources including loudspeakers, a concert grand piano, trombone, flute, and violin. The development of a method of compensating for variations in the played amplitude at subsequent measurement positions using a near-field reference microphone and Frequency Response Functions (FRF) is presented along with the results of its experimental validation. This validation involves a loudspeaker, with known directivity, to simulate a live musician. It radiates both idealized signals and anechoic recordings of musical instruments with random variations in amplitude. The concept of coherence balloon maps and surface averaged coherence are introduced as tools to establish directivity confidence. The method of creating composite directivities for musical instruments is also introduced. A composite directivity comes from combining the directivities of all played partials to approximate what the equivalent directivity from a musical instrument would be if full spectral excitation could be used. The composite directivities are derived from an iterative averaging process that uses coherence as an inclusion criterion. Sample directivity results and discussions of experimental considerations of the piano, trombone, flute, and violin are presented. The research conducted is preliminary and will be further developed by future students to expand and refine the methods presented here.
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Johnston, Ann. "Markov Bases for Noncommutative Harmonic Analysis of Partially Ranked Data." Scholarship @ Claremont, 2011. http://scholarship.claremont.edu/hmc_theses/4.

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Given the result $v_0$ of a survey and a nested collection of summary statistics that could be used to describe that result, it is natural to ask which of these summary statistics best describe $v_0$. In 1998 Diaconis and Sturmfels presented an approach for determining the conditional significance of a higher order statistic, after sampling a space conditioned on the value of a lower order statistic. Their approach involves the computation of a Markov basis, followed by the use of a Markov process with stationary hypergeometric distribution to generate a sample.This technique for data analysis has become an accepted tool of algebraic statistics, particularly for the study of fully ranked data. In this thesis, we explore the extension of this technique for data analysis to the study of partially ranked data, focusing on data from surveys in which participants are asked to identify their top $k$ choices of $n$ items. Before we move on to our own data analysis, though, we present a thorough discussion of the Diaconis–Sturmfels algorithm and its use in data analysis. In this discussion, we attempt to collect together all of the background on Markov bases, Markov proceses, Gröbner bases, implicitization theory, and elimination theory, that is necessary for a full understanding of this approach to data analysis.
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Manna, Utpal. "Harmonic and stochastic analysis aspects of the fluid dynamics equations." Laramie, Wyo. : University of Wyoming, 2007. http://proquest.umi.com/pqdweb?did=1414120661&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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Akman, Murat. "On the Dimension of a Certain Measure Arising from a Quasilinear Elliptic Partial Differential Equation." UKnowledge, 2014. http://uknowledge.uky.edu/math_etds/12.

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We study the Hausdorff dimension of a certain Borel measure associated to a positive weak solution of a certain quasilinear elliptic partial differential equation in a simply connected domain in the plane. We also assume that the solution vanishes on the boundary of the domain. Then it is shown that the Hausdorff dimension of this measure is less than one, equal to one, greater than one depending on the homogeneity of the certain function. This work generalizes the work of Makarov when the partial differential equation is the usual Laplace's equation and the work of Lewis and his coauthors when it is the p-Laplace's equation.
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Wiswall, Wendy Jeanne. "Partial vowel harmonies as evidence for a Height Node." Diss., The University of Arizona, 1991. http://hdl.handle.net/10150/185697.

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In this dissertation I examine partial vowel assimilations, where more than one but less than all vowel features pattern together in a phonological rule. The result of this dissertation research is the 'Height Node Geometry'. The particular innovation this geometry makes is to group the height features ( (high) and (low)) under a separate Height Node, as opposed to having the height features report to the Dorsal Node or the Place Node. Motivation for the Height Node Geometry comes from analyses of several phonological processes. First, removing the height features from under the Dorsal Node and the Place Node facilitates a more natural explanation for reduplication in the Petit Diboum dialect of Fe?fe?-Bamileke. Second, placing the height features above the Place Node but still directly or indirectly under the Supralaryngeal Node provides an account for Tunica partial translaryngeal harmony. Finally, vowel harmony in Ewe involves spreading of (+high) and (+low) in the same environment, arguing for a simpler rule of node spread; hence, I propose that the height features stem from a separate Height Node, instead of directly to the Supralaryngeal Node.
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Branding, Volker. "The evolution equations for Dirac-harmonic Maps." Phd thesis, Universität Potsdam, 2012. http://opus.kobv.de/ubp/volltexte/2013/6420/.

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This thesis investigates the gradient flow of Dirac-harmonic maps. Dirac-harmonic maps are critical points of an energy functional that is motivated from supersymmetric field theories. The critical points of this energy functional couple the equation for harmonic maps with spinor fields. At present, many analytical properties of Dirac-harmonic maps are known, but a general existence result is still missing. In this thesis the existence question is studied using the evolution equations for a regularized version of Dirac-harmonic maps. Since the energy functional for Dirac-harmonic maps is unbounded from below the method of the gradient flow cannot be applied directly. Thus, we first of all consider a regularization prescription for Dirac-harmonic maps and then study the gradient flow. Chapter 1 gives some background material on harmonic maps/harmonic spinors and summarizes the current known results about Dirac-harmonic maps. Chapter 2 introduces the notion of Dirac-harmonic maps in detail and presents a regularization prescription for Dirac-harmonic maps. In Chapter 3 the evolution equations for regularized Dirac-harmonic maps are introduced. In addition, the evolution of certain energies is discussed. Moreover, the existence of a short-time solution to the evolution equations is established. Chapter 4 analyzes the evolution equations in the case that the domain manifold is a closed curve. Here, the existence of a smooth long-time solution is proven. Moreover, for the regularization being large enough, it is shown that the evolution equations converge to a regularized Dirac-harmonic map. Finally, it is discussed in which sense the regularization can be removed. In Chapter 5 the evolution equations are studied when the domain manifold is a closed Riemmannian spin surface. For the regularization being large enough, the existence of a global weak solution, which is smooth away from finitely many singularities is proven. It is shown that the evolution equations converge weakly to a regularized Dirac-harmonic map. In addition, it is discussed if the regularization can be removed in this case.
Die vorliegende Dissertation untersucht den Gradientenfluss von Dirac-harmonischen Abbildungen. Dirac-harmonische Abbildungen sind kritische Punkte eines Energiefunktionals, welches aus supersymmetrischen Feldtheorien motiviert ist. Die kritischen Punkte dieses Energiefunktionals koppeln die Gleichung für harmonische Abbildungen mit Spinorfeldern. Viele analytische Eigenschaften von Dirac-harmonischen Abbildungen sind bereits bekannt, ein allgemeines Existenzresultat wurde aber noch nicht erzielt. Diese Dissertation untersucht das Existenzproblem, indem der Gradientenfluss von einer regularisierten Version Dirac-harmonischer Abbildungen untersucht wird. Die Methode des Gradientenflusses kann nicht direkt angewendet werden, da das Energiefunktional für Dirac-harmonische Abbildungen nach unten unbeschränkt ist. Daher wird zunächst eine Regularisierungsvorschrift für Dirac-harmonische Abbildungen eingeführt und dann der Gradientenfluss betrachtet. Kapitel 1 stellt für die Arbeit wichtige Resultate über harmonische Abbildungen/harmonische Spinoren zusammen. Außerdem werden die zur Zeit bekannten Resultate über Dirac-harmonische Abbildungen zusammengefasst. In Kapitel 2 werden Dirac-harmonische Abbildungen im Detail eingeführt, außerdem wird eine Regularisierungsvorschrift präsentiert. Kapitel 3 führt die Evolutionsgleichungen für regularisierte Dirac-harmonische Abbildungen ein. Zusätzlich wird die Evolution von verschiedenen Energien diskutiert. Schließlich wird die Existenz einer Kurzzeitlösung bewiesen. In Kapitel 4 werden die Evolutionsgleichungen für den Fall analysiert, dass die Ursprungsmannigfaltigkeit eine geschlossene Kurve ist. Die Existenz einer Langzeitlösung der Evolutionsgleichungen wird bewiesen. Es wird außerdem gezeigt, dass die Evolutionsgleichungen konvergieren, falls die Regularisierung groß genug gewählt wurde. Schließlich wird diskutiert, ob die Regularisierung wieder entfernt werden kann. Kapitel 5 schlussendlich untersucht die Evolutionsgleichungen für den Fall, dass die Ursprungsmannigfaltigkeit eine geschlossene Riemannsche Spin Fläche ist. Es wird die Existenz einer global schwachen Lösung bewiesen, welche bis auf endlich viele Singularitäten glatt ist. Die Lösung konvergiert im schwachen Sinne gegen eine regularisierte Dirac-harmonische Abbildung. Auch hier wird schließlich untersucht, ob die Regularisierung wieder entfernt werden kann.
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Brown, John. "A SPACE BASED PARTICLE DAMPER DEMONSTRATOR." DigitalCommons@CalPoly, 2011. https://digitalcommons.calpoly.edu/theses/501.

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The structure and payload of a CubeSat flight experiment that investigates the performance of particle dampers in a micro-gravity environment was designed, built, and tested, and will provide on orbit data for model validation and improved performance predictions for space applications of particle damping. A 3-D solid model of the integrated CubeSat structure and payload was created satisfying all constraints from CubeSat and the System Dynamics Department at Northrop Grumman Aerospace Systems. The model was verified using commercially available Finite Element Analysis software (FEA), and a prototype structure part was fabricated. The prototype was tested and verified the FEA. A complete subassembly ready for flight was manufactured as an engineering unit and tested to space qualification loads of both launch vibration and thermal vacuum. Two additional units were contracted out for manufactured to serve as the flight unit and backup, and are currently ready for launch.
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Yang, Danyu. "Partial sum process of orthogonal series as rough process." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:f48d69b9-29ba-420b-a6b5-55deba847b15.

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In this thesis, we investigate the pathwise regularity of partial sum process of general orthogonal series, and prove that the partial sum process is a geometric 2-rough process under the same condition as in Menshov-Rademacher Theorem. For Fourier series, the condition can be improved, and an equivalent condition on the limit function is identified.
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Wiswall, Wendy J. "Tunica Partial Vowel Harmony as Support for a Height Node." Department of Linguistics, University of Arizona (Tucson, AZ), 1991. http://hdl.handle.net/10150/227242.

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Bergeron, Mario. "Coherent state path integral for the harmonic oscillator and a spin particle in a constant magnetic field." Thesis, University of British Columbia, 1989. http://hdl.handle.net/2429/27391.

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The definition and formulas for the harmonic oscillator coherent states and spin coherent states are reviewed in detail. The path integral formalism is also reviewed with its relation and the partition function of a sytem is also reviewed. The harmonic oscillator coherent state path integral is evaluated exactly at the discrete level, and its relation with various regularizations is established. The use of harmonic oscillator coherent states and spin coherent states for the computation of the path integral for a particle of spin s put in a magnetic field is caried out in several ways, and a careful analysis of infinitesimal terms (in 1/N where TV is the number of time slices) is done explicitly. The theory of the magnetic monopole and its relation with the spin system are explained, and the equivalence of these two system is established up to infinitesimal order by the introduction of an exterior interaction to the monopole. This gives a new representation of a coherent state path integral in terms of a more familiar Feynman path integral. The coefficient of the topological term in the spin system appears explicitly without ambiguity, as being 2s.
Science, Faculty of
Physics and Astronomy, Department of
Graduate
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Books on the topic "Harmonic partials"

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García-Cuerva, José, ed. Harmonic Analysis and Partial Differential Equations. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/bfb0086791.

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Milman, Mario, and Tomas Schonbek, eds. Harmonic Analysis and Partial Differential Equations. Providence, Rhode Island: American Mathematical Society, 1990. http://dx.doi.org/10.1090/conm/107.

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Cifuentes, Patricio, José García-Cuerva, Gustavo Garrigós, Eugenio Hernández, José Martell, Javier Parcet, Keith Rogers, Alberto Ruiz, Fernando Soria, and Ana Vargas, eds. Harmonic Analysis and Partial Differential Equations. Providence, Rhode Island: American Mathematical Society, 2014. http://dx.doi.org/10.1090/conm/612.

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Cifuentes, Patricio, José García-Cuerva, Gustavo Garrigós, Eugenio Hernández, José María Martell, Javier Parcet, Alberto Ruiz, Fernando Soria, José Luis Torrea, and Ana Vargas, eds. Harmonic Analysis and Partial Differential Equations. Providence, Rhode Island: American Mathematical Society, 2010. http://dx.doi.org/10.1090/conm/505.

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Mitrea, Dorina. Distributions, Partial Differential Equations, and Harmonic Analysis. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-03296-8.

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Mitrea, Dorina. Distributions, Partial Differential Equations, and Harmonic Analysis. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-8208-6.

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Chanillo, Sagun, Bruno Franchi, Guozhen Lu, Carlos Perez, and Eric T. Sawyer, eds. Harmonic Analysis, Partial Differential Equations and Applications. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-52742-0.

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Kyoto, Japan) Symposium "Harmonic Analysis and Nonlinear Partial Differential Equations" (2008. Harmonic analysis and nonlinear partial differential equations. Kyōto, Japan: Research Institute for Mathematical Sciences, Kyoto University, 2009.

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Partial regularity for harmonic maps and related problems. Hackensack, NJ: World Scientific, 2005.

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Georgakis, Constantine, Alexander M. Stokolos, and Wilfredo Urbina, eds. Special Functions, Partial Differential Equations, and Harmonic Analysis. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-10545-1.

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Book chapters on the topic "Harmonic partials"

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Gong, Yukai, Xiangbo Shu, and Jinhui Tang. "Recovering Overlapping Partials for Monaural Perfect Harmonic Musical Sound Separation Using Modified Common Amplitude Modulation." In Advances in Multimedia Information Processing – PCM 2017, 903–12. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-77380-3_87.

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Rauch, Jeffrey. "Some Harmonic Analysis." In Partial Differential Equations, 61–94. New York, NY: Springer New York, 1991. http://dx.doi.org/10.1007/978-1-4612-0953-9_2.

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Marin, Marin, and Andreas Öchsner. "Harmonic Functions." In Essentials of Partial Differential Equations, 289–308. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-90647-8_12.

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Chang, Der-Chen. "Nankai lecture in $$\bar \partial $$ -Neumann problem." In Harmonic Analysis, 1–22. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/bfb0087752.

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Arnold, Vladimir I. "Properties of Harmonic Functions." In Lectures on Partial Differential Equations, 65–76. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-05441-3_8.

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Simon, Marielle. "Diffusion Coefficient for the Disordered Harmonic Chain Perturbed by an Energy Conserving Noise." In From Particle Systems to Partial Differential Equations II, 355–70. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-16637-7_14.

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Bredies, Kristian, and Dirk Lorenz. "Partial Differential Equations in Image Processing." In Applied and Numerical Harmonic Analysis, 171–250. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-01458-2_5.

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Sauvigny, Friedrich. "Potential Theory and Spherical Harmonics." In Partial Differential Equations 1, 305–61. London: Springer London, 2012. http://dx.doi.org/10.1007/978-1-4471-2981-3_5.

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Langlois, Robert, Jordan T. Ash, Jesper Pallesen, and Joachim Frank. "Fully Automated Particle Selection and Verification in Single-Particle Cryo-EM." In Applied and Numerical Harmonic Analysis, 43–66. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-9521-5_3.

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Brandt, Siegmund, and Hans Dieter Dahmen. "Coupled Harmonic Oscillators: Distinguishable Particles." In The Picture Book of Quantum Mechanics, 129–41. New York, NY: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4684-0233-9_7.

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Conference papers on the topic "Harmonic partials"

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Jinghua Yan, Hui Wang, Chuanzhen Li, and Qin Zhang. "Analysis of high frequency partials in Bayesian harmonic model." In 2008 International Conference on Audio, Language and Image Processing (ICALIP). IEEE, 2008. http://dx.doi.org/10.1109/icalip.2008.4590051.

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Yeh, Chunghsin, and Axel Roebel. "The expected amplitude of overlapping partials of harmonic sounds." In ICASSP 2009 - 2009 IEEE International Conference on Acoustics, Speech and Signal Processing. IEEE, 2009. http://dx.doi.org/10.1109/icassp.2009.4960297.

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Bronson, James, and Philippe Depalle. "Phase constrained complex NMF: Separating overlapping partials in mixtures of harmonic musical sources." In ICASSP 2014 - 2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE, 2014. http://dx.doi.org/10.1109/icassp.2014.6855053.

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Mackowski, Daniel W. "Direct Simulation of Scattering and Absorption by Particle Deposits." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-14615.

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A computational scheme is presented to exactly calculate the electromagnetic field distribution, and associated radiative absorption and scattering characteristics, of large-scale ensembles of spherical particles that are subjected to a focussed incident beam. The method employs a superposition extension to Lorenz/Mie theory, in which the internal and scattered fields for each sphere in the ensemble are represented by vector spherical harmonic expansions, and boundary conditions at the surfaces of the spheres are matched by application of the addition theorem for vector harmonics. The incident field is modeled as a transverse, linearly-polarized wave with a Gaussian amplitude distribution along a fixed focal plane. Application of the method to prediction of the absorption and reflectance characteristics of particle deposits is discussed, and illustrative calculations are presented.
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5

Bagci, Cemil. "Complete Shaking-Force, -Moment, and, -Torque Balancing of Multi-Cylinder Engines Without Requiring Harmonic Balancers." In ASME 1996 Design Engineering Technical Conferences and Computers in Engineering Conference. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/96-detc/mech-1188.

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Abstract Conventional engine balancing process truncates the piston acceleration to form harmonics form for the shaking force; then using dynamically equivalent two-particle mass system for the connecting rod, the shaking force is balanced by arranging the phase angles of the crank throws. During this process, the shaking torque balancing (about the crank shaft axis) is ignored. Shaking force due to truncated portion of piston acceleration is left unbalanced; and that some phase angle arrangements cannot balance the harmonics of the shaking force. This requires force harmonic balancers. Unbalanced inertial forces generate shaking moment about the transverse axis (normal to crankshaft axis) that remains unbalanced. Shaking moment due to force harmonics for some phase angles also remain unbalanced. They require moment harmonic balancers. This article presents a complete balancing method by which shaking force in each slider-crank loop is completely balanced. This also means that shaking moment is also completely balanced, thus eliminating the need for both force-, and moment-harmonic balancers. Article uses linearly independent mass vector method to retain the total center of mass of each slider-crank loop stationary. Shaking torque (sum of the inertial torques about the axis parallel to the crankshaft axis) causes variation in the output torque generated. This variation may be considered when designing the flywheel. However, the shaking torque is also balanced (or minimized) retaining the total angular momentum of each loop constant by arranging the phase angles of the crank throws. Several multi-cylinder engines are completely balanced for shaking force, shaking moment and shaking torque in the application examples, including balanced designs of connecting rod and throw sides.
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Mackowski, Daniel W., and Mario Ramos. "Prediction of the Effective Thermal Diffusivity of Discretely Inhomogeneous Media." In ASME 2009 Heat Transfer Summer Conference collocated with the InterPACK09 and 3rd Energy Sustainability Conferences. ASMEDC, 2009. http://dx.doi.org/10.1115/ht2009-88508.

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An extended definition of the effective thermal diffusivity is posed via an analogy to acoustic and EM wave propagation in discretely inhomogeneous media. Specifically, the propagation of a periodic, plane thermal wave of frequency ω, through an inhomogeneous medium consisting of spherical particles embedded in a continuous matrix, is theoretically examined. An exact solution for the time–harmonic conduction equation, for the multiple sphere system, is developed by use of the scalar wave harmonic functions and the addition theorem for the harmonics. An effective medium model, which is based on the Quasi–Crystalline approximation (QCA) for acoustic and EM wave propagation, is developed, and a formulation for the frequency–dependent effective thermal diffusivity is derived. In the limit of x = Rω/α0→0, where R is the sphere radius and α0 the matrix thermal diffusivity, it is shown that formulation reduces to that derived from a static model.
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Middendorf, M. E., F. R. Brumwell, J. C. Dooling, D. Horan, R. L. Kustom, M. K. Lien, G. E. McMichael, M. R. Moser, A. Nassiri, and S. Wang. "The IPNS second harmonic RF upgrade." In 2007 IEEE Particle Accelerator Conference. IEEE, 2007. http://dx.doi.org/10.1109/pac.2007.4441207.

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8

Runkler, Thomas A. "Partially supervised k-harmonic means clustering." In 2011 Ieee Symposium On Computational Intelligence And Data Mining - Part Of 17273 - 2011 Ssci. IEEE, 2011. http://dx.doi.org/10.1109/cidm.2011.5949424.

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9

Yadav, Shubhendra, Vipin Kumar Singh, and Satyendra Singh. "Particle swarm optimization based shunt active harmonic filter for harmonic compensation." In 2017 4th IEEE Uttar Pradesh Section International Conference on Electrical, Computer and Electronics (UPCON). IEEE, 2017. http://dx.doi.org/10.1109/upcon.2017.8251080.

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10

Belegundu, Ashok D., and Michael D. Grissom. "Optimal Design of a Segmented Tube With Side Branches for Noise Reduction." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-88691.

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Acoustic filters, or mufflers, are used in a number of applications for suppression or attenuation of sound. These mufflers use pipes with side branches and/or Helmholtz resonators thus routing the flow through a number of passages wherein the waves are partially reflected resulting in sound power attenuation. With the idea of using a pipe for active noise cancellation to reduce cabin noise in propeller aircraft, we define an objective function that maximizes sound pressure (or other criteria) at a given frequency f0 while minimizing (attenuating) the pressure at other harmonics m1 f0, m2 f0 etc. within the frequency band. Thus, the device can be used to generate anti-noise at the first harmonic, while attenuating noise at higher harmonics. A design tool is developed here using an optimization technique. Plane wave propagation is assumed. A choice of objective functions can be user-specified. Details of the design parameters and objective functions are given followed by acoustic analysis details. Test results are then given which show that the code can be used as a valuable design tool for noise reduction.
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Reports on the topic "Harmonic partials"

1

Takada, Yasutami. Time-Independent Variational Approach to Inelastic Collisions of a Particle with a Harmonic Oscillator. Fort Belvoir, VA: Defense Technical Information Center, August 1988. http://dx.doi.org/10.21236/ada197695.

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2

Luccio A. U. Spin Tracking in RHIC with one Full Snake and one Partial Snake. Effect of Orbit Harmonics. Office of Scientific and Technical Information (OSTI), June 2003. http://dx.doi.org/10.2172/1061693.

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