Log in

Relevant bibliographies by topics / Four Fluctuations

Contents

Journal articles
Dissertations / Theses
Books
Book chapters
Conference papers
Reports

Academic literature on the topic 'Four Fluctuations'

Author: Grafiati

Published: 4 June 2021

Last updated: 3 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Four Fluctuations.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Four Fluctuations"

1

Gonçalves, Sérgio M. C. V., and Ian G. Moss. "Scalar curvature fluctuations on the four-sphere." Physics Letters B 401, no. 3-4 (May 1997): 254–57. http://dx.doi.org/10.1016/s0370-2693(97)00397-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Yan-peng, Zhang, Wu Hong-cai, Wang Peng-fei, Li Chuang-she, and Fu Pan-ming. "Phase fluctuations on Raman-enhanced nondegenerate four-wave mixing." Chinese Physics 9, no. 8 (August 2000): 599–605. http://dx.doi.org/10.1088/1009-1963/9/8/009.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Kofman, A. G., A. M. Levine, and Yehiam Prior. "Stochastic fluctuations in four-wave mixing: A unified theory." Physical Review A 37, no. 4 (February 1, 1988): 1248–60. http://dx.doi.org/10.1103/physreva.37.1248.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Bucci, F., C. Castellani, C. Di Castro, and M. Grilli. "Charge fluctuations in the four-band extended Hubbard model." Physical Review B 52, no. 9 (September 1, 1995): 6880–93. http://dx.doi.org/10.1103/physrevb.52.6880.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Zhang, Weiping, and Daniel F. Walls. "Sub-shot-noise intensity fluctuations in four-wave mixing." Physical Review A 41, no. 11 (June 1, 1990): 6385–92. http://dx.doi.org/10.1103/physreva.41.6385.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Min, He Qun, Xiao Yang Huang, and Qi De Zhang. "Pressure Fluctuations and Flow-Induced Vibration Measurements in a Hard Disk Drive under Different Rotation Speeds." Applied Mechanics and Materials 197 (September 2012): 292–96. http://dx.doi.org/10.4028/www.scientific.net/amm.197.292.

Full text

Abstract:

Flow-induced vibration (FIV) of a head gimbals assembly (HGA) in hard disk drives (HDDs) limits the positioning accuracy of magnetic head in the HGA for higher HDD magnetic recording density. The pressure fluctuations characterize turbulent fluctuations exciting the HGA off-track vibration (HGA-OTV). In this paper, experimental studies have been carried out to investigate the spectrum characteristics correspondence between pressure fluctuations around an HGA and the simultaneous HGA-OTV under different HDD rotation speeds. A practical and effective experimental setup has been implemented to enable the simultaneous measurements on both the pressure fluctuation and HGA-OTV signals, where pressure fluctuations are measured with a pressure transducer through a small hole on the HDD top cover and the direct HGA-OTV signals are detected through a laser Doppler vibrometer. Results under conditions of three different HDD rotation speeds of 7200, 9000, 10800 rpm have been investigated and compared. It is shown that the HGA off-track vibration spectra are highly associated with those of the pressure fluctuations in terms of principal peaks in four frequency bands around 1.8 kHz, 2.5-3.5 kHz, 7-7.5 kHz and 11.5-12.5 kHz. With increasing HDD rotation speed, it is shown that the spectrum magnitudes of both the pressure fluctuation and the HGA off-track vibration increase correspondingly, while the principal peak positions in spectra of either pressure fluctuation or the HGA off-track vibration always hold the line. This study demonstrates a causal nexus from the pressure fluctuation to the HGA off-track vibration and suggests the feasibility of controlling the HGA-OTV through suppression of pressure fluctuations around the HGA.

APA, Harvard, Vancouver, ISO, and other styles

7

Kume, Tatsuya, Masanori Satoh, Tsuyoshi Suwada, Kazuro Furukawa, and Eiki Okuyama. "Angle Detection Using Gyro Signals Rotating Around Four Orthogonally Aligned Axes." International Journal of Automation Technology 14, no. 1 (January 5, 2020): 52–58. http://dx.doi.org/10.20965/ijat.2020.p0052.

Full text

Abstract:

An angle sensor can be used to evaluate profiles without any shape references. We regard it suitable for evaluating a large profile and consider a gyro as an angle sensor for evaluating a profile larger than 100 m with an accuracy of better than 1 mm. A gyro can evaluate profiles without restrictions in span or direction; however, angles detected by a gyro typically fluctuate unacceptably for our purpose. We demonstrate that periodical reversal measurement by flipping a gyro is effective in reducing the effect of the fluctuation. Then, we rotate the gyro for continuously realizing the reversal, where the angles of the gyro’s rotating axis against the earth’s rotating axis can be derived without being affected by the fluctuation, and can be used as an angle sensor. Here, we consider a new method using gyro signals rotating around four orthogonally aligned axes. This can improve the accuracy of the derived angles by eliminating the effects of the gyro’s scale factor as well as the fluctuations.

APA, Harvard, Vancouver, ISO, and other styles

8

Bloom, N. "Fluctuations in uncertainty." Voprosy Ekonomiki, no. 4 (April 20, 2016): 30–55. http://dx.doi.org/10.32609/0042-8736-2016-4-30-55.

Full text

Abstract:

In this essay, the author addresses four questions about uncertainty. First, what are some facts and patterns about economic uncertainty? Both macro and micro uncertainty appear to rise sharply in recessions and fall in booms. Uncertainty also varies heavily across countries - developing countries appear to have about one-third more macro uncertainty than developed countries. Second, why does uncertainty vary during business cycles? Third, do fluctuations in uncertainty affect behavior? Fourth, has higher uncertainty worsened the Great Recession and slowed the recovery? Much of this discussion is based on research on uncertainty from the last five years, reflecting the recent growth of the literature.

APA, Harvard, Vancouver, ISO, and other styles

9

Parker, Jonathan A., and Bruce Preston. "Precautionary Saving and Consumption Fluctuations." American Economic Review 95, no. 4 (August 1, 2005): 1119–43. http://dx.doi.org/10.1257/0002828054825556.

Full text

Abstract:

This paper uses the consumption Euler equation to derive a decomposition of consumption growth into four sources. These four sources are new information, and three sources of predictable consumption growth: intertemporal substitution, changes in the preferences for consumption, and incomplete markets for consumption insurance. Using household-level data, we implement this decomposition for the average growth rate of consumption expenditures on nondurable goods in the United States from 1982 to 1997. The economic importance of precautionary saving rivals that of the real interest rate, but the relative importance of each source of movement in the volatility of consumption is not precisely measured.

APA, Harvard, Vancouver, ISO, and other styles

10

Hershfield, Selman, and Vinay Ambegaokar. "Resistance fluctuations in a four-probe geometry with infinite leads." Physical Review B 38, no. 12 (October 15, 1988): 7909–12. http://dx.doi.org/10.1103/physrevb.38.7909.

Full text

APA, Harvard, Vancouver, ISO, and other styles

More sources

Dissertations / Theses on the topic "Four Fluctuations"

1

Wozniak, Trevor Mathew. "Four Fluctuations for Chamber Ensemble or Chamber Orchestra." Kent State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=kent1291050505.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Barthélemy, Jean. "Four essays on macroeconomic fluctuations : trends, cycles and regime switching in rationalexpectations models." Paris, EHESS, 2011. http://www.theses.fr/2011EHES0016.

Full text

Abstract:

Cette thèse se divise en deux grandes parties. La première partie est consacrée à la décomposition cycle-tendance des fluctuations macroéconomiques. Cette partie contient deux essais. Le premier estime un modèle DSGE en économie fermée, le second en économie ouverte. Les deux intègrent des chocs persistants afin de reproduire les fluctuations de long terme. La deuxième partie contient également deux essais et traite des changements de régime. Le premier essai explore la possibilité d'une réaction non-linéaire de la BCE à la croissance de la monnaie dans un modèle DSGE; tandis que le second étend les méthodes à perturbations afin de résoudre les modèles à anticipations rationnelles et changements de régime dépendant de l'état de l'économie
This dissertation is divided into two parts. The first part examines the decomposition of macroeconomic fluctuations into trends and cycles. This part consists of two essays that estimate DSGE models in presence of permanent shocks, in closed and in open economy respectively. The second part deals with regime switching and consists of two essays as well. The first of these two essays assesses the existence of a non-linear reaction from the ECB to money growth in an estimated DSGE model whereas the second extends the perturbation approach to solve Rational Expectations models with state-dependent regime switching

APA, Harvard, Vancouver, ISO, and other styles

3

Embrey, Christopher. "Controlling local quantum fluctuations of light using four-wave mixing in an atomic vapour." Thesis, University of Birmingham, 2016. http://etheses.bham.ac.uk//id/eprint/6440/.

Full text

Abstract:

The spatial character of the noise on a light field affects its usefulness for imaging. Multi-spatial-mode (MSM) squeezed light has noise below the quantum noise limit in multiple spatial modes, and can be used for super resolution imaging. The generation of such light has long been an experimental goal within the field of quantum optics. This work introduces the theory behind the generation of squeezed light, and its measurement using a homodyne detector. A four-wave mixing process in a rubidium 85 vapour is used to experimentally generate squeezed light. The properties of this squeezed light are investigated, through the use of homodyne detection with a bichromatic LO. This thesis further investigates how the squeezed quadrature changes from amplitude to phase over a range of 40 MHz. The MSM nature of a squeezed light field is directly investigated. The field is shown to contain at least 75 squeezed spatial modes in the frequency domain, each squeezed at a level of up to -2.5 dB. This thesis develops techniques to measure the spatial character of noise on a light field in the time domain. These are promising techniques for the analysis of the MSM nature of a squeezed light in the time domain.

APA, Harvard, Vancouver, ISO, and other styles

4

Callahan, B. J. "Modelling and evaluation of two-stroke and four-stroke engines with in-cycle speed fluctuations." Thesis, Queen's University Belfast, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.411036.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Pedurand, Richard. "Instrumentation for Thermal Noise Spectroscopy." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSE1356.

Full text

Abstract:

La résolution des interféromètres gravitationnels est limitée par le mouvement Brownien - ou bruit thermique - de leurs miroirs dans la partie centrale de leur bande de détection, entre 10Hz et 1kHz. La répartition en fréquence de ce bruit thermique est dictée par les mécanismes de dissipation d'énergie mécanique à l'origine de cette vibration aléatoire, en accord avec le théorème fluctuation-dissipation. Cette dissipation provient principalement des revêtements optiques déposés sur les miroirs pour leur donner leur réflectivité. Dans le but de réduire le bruit thermique, une nouvelle génération de détecteurs d'ondes gravitationnelles employant des miroirs refroidis à température cryogénique a été proposée. Le développement de nouveaux matériaux optiques en couche mince à faible dissipation mécanique, opérant à la fois à température ambiante et température cryogénique, demande donc de nouveaux outils expérimentaux. L'objet principal de cette thèse est la construction d'un nouvel instrument, le CryoQPDI, qui consiste en l'association d'un interféromètre haute résolution et d'un cryostat basé sur un refroidisseur pulse tube. Il est capable de mesurer directement le mouvement Brownien d'un microlevier entre 300 K et 7 K. En combinant des mesures effectuées sur un microlevier avant et après le dépôt d'une couche mince, il est possible de caractériser la dissipation mécanique interne de cette couche mince. Cet instrument participera ainsi à l'optimisation des revêtements optiques des futurs interféromètres gravitationnels, dans le but de minimiser les nuisances dues au bruit thermique
The resolution limit of gravitational wave interferometers is set by their mirrors' Brownian motion – or thermal noise - in the central part of their detection band, from 10Hz to 1kHz. This thermal noise frequency distribution is given by the mechanical energy dissipation mechanisms it originates from, in agreement with the fluctuation-dissipation theorem. This dissipation mainly derives from the optical coatings deposited on the mirrors to give them their reflectivity. To reduce this thermal noise, a new generation of gravitational wave detectors employing mirrors cooled to cryogenic temperature has been suggested. The development of new optical thin-film materials with low mechanical dissipation, operating at both room and cryogenic temperatures, therefore requires new experimental tools. The main object of this thesis is the construction of a new instrument, the CryoQPDI, which is an association between a high-resolution interferometer and a cryostat based on a pulse tube cooler. It can directly measure the Brownian motion of a microcantilever between 300 K and 7 K. By combining measurements made on a microcantilever before and after the deposition of a thin film, it is possible to characterize the internal mechanical dissipation of this thin film. This instrument will eventually contribute to the optimisation of optical coatings of future gravitational wave detectors, aiming at minimizing the limitations due to thermal noise

APA, Harvard, Vancouver, ISO, and other styles

6

ROSA, VICTOR JORGE LIMA GALVAO. "STOCHASTIC HARMONIC MODEL FOR PRICE FLUCTUATIONS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2016. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=32379@1.

Full text

Abstract:

PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO
COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO
PROGRAMA DE SUPORTE À PÓS-GRADUAÇÃO DE INSTS. DE ENSINO
Consideramos o oscilador harmônico com amortecimento aleatório em presença de ruído externo. Os ruídos, representando perturbações externas e internas, são modelados pelo processo de Ornstein-Uhlenbeck ou ruído branco e pelo processo dicotômico ou ruído branco, respectivamente. Usando técnicas de sistemas dinâmicos, analisamos o valor médio e a dispersão da posição e da velocidade do oscilador harmônico estocástico, apresentando resultados analíticos e numéricos. Em particular, obtemos expressões para a expansão de baixa-ordem em relação ao tempo de correlação da perturbação interna, no caso da atuação do ruído dicotômico. Finalmente, usando o modelo de oscilador harmônico com amortecimento aleatório como referência, investigamos a série intradiária de preços do mercado brasileiro.
We consider the random damping harmonic oscillator in presence of external noise. The noises, representing external and internal perturbations, are modeled as an Ornstein-Uhlenbeck process or a white noise and as a dichotomous process or a white noise, respectively. Using dynamical systems tools, we analyze the expected value as well as the dispersion of the stochastic harmonic oscillator s position and velocity, presenting analytical and numerical results. In particular, we also provide expressions for the low-order expansion in the correlation time of the internal perturbation, in the case the dichotomous noise is at play. Using random damped harmonic oscillator model as a reference, we conclude by investigating the intra-day Brazilian stock price series.

APA, Harvard, Vancouver, ISO, and other styles

7

Speranza, Antony John. "Stochastic congruence equations for spacetime fluctuations." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/78491.

Full text

Abstract:

Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2012.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 45-46).
This work considers some implications of viewing gravity as an emergent force. In such a viewpoint, general relativity arises as the thermodynamic limit of some microscopic theory. As such, one would expect the macroscopic variables such as the curvature tensors to fluctuate about their mean. This thesis presents a method for analyzing the effects of curvature fluctuations on spacetime thermodynamics. This is done by examining the evolution equations for time-like and null congruences, and recasting them as stochastic differential equations. The purpose of viewing the congruence evolution equations as stochastic is in the spirit of nonequilibrium thermodynamics, and may lead to an application of the fluctuation-dissipation theorem to spacetime. It is expected that this reformulation of the congruence equations will lead to further insights on the effects of fluctuations in general relativity.
by Antony John Speranza.
S.B.

APA, Harvard, Vancouver, ISO, and other styles

8

Gundermann, Julia. "The Crooks Fluctuation Theorem Derived for Two-Dimensional Fluid Flow and its Potential to Improve Predictions." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-156748.

Full text

Abstract:

The weather dynamics are significantly determined by the motion of the atmosphere and the ocean. This motion is often turbulent, characterized by fluctuations of the flow velocity over wide spatial and temporal scales. This fact, besides limited observability and inaccurate models, impedes the predictability of quantities such as the velocity of winds, which are relevant for the everyday life. One is always interested in improving such predictions - by employing better models or obtaining more information about the system. The Crooks fluctuation theorem is a relation from nonequilibrium thermodynamics, which has its typical applications in nanoscale systems. It quantifies the distribution of imposed work in a process, where the system is pushed out of thermal equilibrium. This distribution is broadened due to the fluctuations of the microscopic degrees of freedom in the system. The fluctuations of the velocity field in turbulent flow suggest the derivation of an analogy of Crooks' theorem for this macroscopic system. The knowledge about the validity of such a relation is additional information, which one in reverse could use to improve predictions about the system. In this thesis both issues are addressed: the derivation of the theorem, and the improvement of predictions. We illustrate the application of Crooks' theorem to hydrodynamic flow within a model of a two-dimensional inviscid and incompressible fluid field, when pushed out of dynamical equilibrium. The flow on a rectangular domain is approximated by the two-dimensional vorticity equation with spectral truncation. In this setting, the equilibrium statistics of the flow can be described through a canonical ensemble with two conserved quantities, kinetic energy and enstrophy. To perturb the system out of equilibrium, we change the shape of the domain according to a protocol, which changes the kinetic energy but leaves the enstrophy constant. This is interpreted as doing work to the system. Evolving along a forward and its corresponding backward process, we find that the distributions of the work performed in these processes satisfy the Crooks relation with parameters derived from the canonical ensembles. We address the issue of prediction in this thesis in a concrete setting: There are examples where the distributions of a variable in the forward and the backward process collapse into one, hence Crooks' theorem relates the distribution of one variable with itself. For a finite data set drawn from such a distribution, we are interested in an estimate of this variable to exceed a certain threshold. We demonstrate that, using the knowledge about Crooks' relation, forecast schemes can be proposed which improve compared to a pure frequency estimate on the data set. The findings are illustrated in three examples, studies of parameters such as exceedance threshold and data set size are presented.

APA, Harvard, Vancouver, ISO, and other styles

9

Etminan, S. "Simulation of high-speed static reactive compensation for suppression of power system disturbances." Thesis, University of Sunderland, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.253748.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Gundermann, Julia. "The Crooks Fluctuation Theorem Derived for Two-Dimensional Fluid Flow and its Potential to Improve Predictions." Doctoral thesis, Technische Universität Dresden, 2014. https://tud.qucosa.de/id/qucosa%3A28433.

Full text

Abstract:

The weather dynamics are significantly determined by the motion of the atmosphere and the ocean. This motion is often turbulent, characterized by fluctuations of the flow velocity over wide spatial and temporal scales. This fact, besides limited observability and inaccurate models, impedes the predictability of quantities such as the velocity of winds, which are relevant for the everyday life. One is always interested in improving such predictions - by employing better models or obtaining more information about the system. The Crooks fluctuation theorem is a relation from nonequilibrium thermodynamics, which has its typical applications in nanoscale systems. It quantifies the distribution of imposed work in a process, where the system is pushed out of thermal equilibrium. This distribution is broadened due to the fluctuations of the microscopic degrees of freedom in the system. The fluctuations of the velocity field in turbulent flow suggest the derivation of an analogy of Crooks' theorem for this macroscopic system. The knowledge about the validity of such a relation is additional information, which one in reverse could use to improve predictions about the system. In this thesis both issues are addressed: the derivation of the theorem, and the improvement of predictions. We illustrate the application of Crooks' theorem to hydrodynamic flow within a model of a two-dimensional inviscid and incompressible fluid field, when pushed out of dynamical equilibrium. The flow on a rectangular domain is approximated by the two-dimensional vorticity equation with spectral truncation. In this setting, the equilibrium statistics of the flow can be described through a canonical ensemble with two conserved quantities, kinetic energy and enstrophy. To perturb the system out of equilibrium, we change the shape of the domain according to a protocol, which changes the kinetic energy but leaves the enstrophy constant. This is interpreted as doing work to the system. Evolving along a forward and its corresponding backward process, we find that the distributions of the work performed in these processes satisfy the Crooks relation with parameters derived from the canonical ensembles. We address the issue of prediction in this thesis in a concrete setting: There are examples where the distributions of a variable in the forward and the backward process collapse into one, hence Crooks' theorem relates the distribution of one variable with itself. For a finite data set drawn from such a distribution, we are interested in an estimate of this variable to exceed a certain threshold. We demonstrate that, using the knowledge about Crooks' relation, forecast schemes can be proposed which improve compared to a pure frequency estimate on the data set. The findings are illustrated in three examples, studies of parameters such as exceedance threshold and data set size are presented.

APA, Harvard, Vancouver, ISO, and other styles

More sources

Books on the topic "Four Fluctuations"

1

Accounting for changing prices. Boston: Allyn and Bacon, 1989.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

2

Kanazawa, Kiyoshi. Statistical Mechanics for Athermal Fluctuation. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-6332-9.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Picard, Jean, ed. Fluctuation Theory for Lévy Processes. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-48511-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Hall, Robert Ernest. The amplification of unemployment fluctuations through self-selection. Cambridge, MA: National Bureau of Economic Research, 2005.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

5

Sweeney, John. Maximum adverse excursion: Analyzing price fluctuations for trading management. New York: J. Wiley, 1996.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

6

S, Day J. F., Walker M, and Institute of Chartered Accountants in England and Wales. Research Board., eds. The information content of unexpected accounting income, funds flow and cash flow: Comparative evidence for the U.S. and U.K. economies. London: Institute of Chartered Accountants in England and Wales, 1989.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

7

Rich, Terrell. Sage grouse population fluctuations: Evidence for a 10-year cycle. Boise, Idaho: Bureau of Land Management, Idaho State Office, 1985.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

8

Sgherri, Silvia. Long-run productivity shifts and cyclical fluctuations: Evidence for Italy. [Washington, D.C.]: International Monetary Fund, European Dept., 2005.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

9

Guzman, Mark G. Accounting for fluctuations in social network usage and migration dynamics. [Dallas, Tx.]: Federal Reserve Bank of Dallas, 2004.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

10

Cho, Y. C. Fiber-optic interferometric sensors for measurements of pressure fluctuations: Experimental evaluation. Moffett Field, Calif: National Aeronautics and Space Administration, Ames Research Center, 1993.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

More sources

Book chapters on the topic "Four Fluctuations"

1

Sternberg, Robert S. "Radiocarbon Fluctuations and the Geomagnetic Field." In Radiocarbon After Four Decades, 93–116. New York, NY: Springer New York, 1992. http://dx.doi.org/10.1007/978-1-4757-4249-7_8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Benoit, A., S. Washburn, C. P. Umbach, R. A. Webb, D. Mailly, and L. Dumoulin. "Four-Wire Measurement of Conductance Fluctuations in Small Systems." In Springer Proceedings in Physics, 346–51. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-73554-7_60.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Bulkan, Özlem, Burak Yalamaz, and M. Namık Cagatay. "A sedimentological pattern of a coastal transitional environment: from the Eastern Mediterranean Sea shoreline through the Lake Bafa." In Proceedings e report, 385–91. Florence: Firenze University Press, 2020. http://dx.doi.org/10.36253/978-88-5518-147-1.38.

Full text

Abstract:

This study represents the lithological correlation of multi-cores taken from the various parts of the current Lake Bafa basin, BAF35, - 37 - 39 - 41, - 42, - 46. Concerning the main depositional characteristics, we reconstructed fundamental characteristics of local abrupt and gradual environmental fluctuations. The gradual changes reflect four main environmental phases are lacustrine stage (last 0.8 ky), lagoon stage (0.8–1.75 ky BP), marine-river interaction stage (1.75–2.7 ky BP) and the earliest marine-dominated stage (>2.7 ky BP).

APA, Harvard, Vancouver, ISO, and other styles

4

Wilson, A. J. C. "Statistical fluctuations." In International Tables for Crystallography, 666–76. Chester, England: International Union of Crystallography, 2006. http://dx.doi.org/10.1107/97809553602060000608.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Peskin, Charles S., Vivian Lombillo, and George Oster. "A Depolymerization Ratchet for Intracellular Transport." In Fluctuations and Order, 321–29. New York, NY: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4612-3992-5_20.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Lindenberg, Katja, Panos Argyrakis, and Raoul Kopelman. "The Hierarchies of Nonclassical Regimes for Diffusion-Limited Binary Reactions." In Fluctuations and Order, 171–203. New York, NY: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4612-3992-5_12.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Mehr, Ramit, and Zvia Agur. "Temporal Stochasticity Leads to Nondeterministic Chaos in a Model for Blood Cell Production." In Fluctuations and Order, 419–27. New York, NY: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4612-3992-5_25.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Olla, Piero. "The Theory of Fluctuations." In UNITEXT for Physics, 155–82. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-06188-7_6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Franz, Wolfgang, and Gustav Heidbrink. "The Importance of Rationing in International Trade: An Econometric Analysis for Germany." In Output and Employment Fluctuations, 105–29. Heidelberg: Physica-Verlag HD, 1994. http://dx.doi.org/10.1007/978-3-642-57989-9_8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

García-Ojalvo, Jordi, and José M. Sancho. "Front Dynamics and External Fluctuations." In Institute for Nonlinear Science, 219–62. New York, NY: Springer New York, 1999. http://dx.doi.org/10.1007/978-1-4612-1536-3_6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Four Fluctuations"

1

Jiménez Tejada, J. A., A. Luque Rodríguez, and A. Godoy. "A model for the generation recombination noise in junction field effect structures: application to four-gate transistors." In NOISE AND FLUCTUATIONS: 19th International Conference on Noise and Fluctuations; ICNF 2007. AIP, 2007. http://dx.doi.org/10.1063/1.2759646.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Rodríguez, A. Luque, J. A. Jiménez Tejada, J. A. López Villanueva, A. Godoy, P. Lara Bullejos, M. Gómez-Campos, Massimo Macucci, and Giovanni Basso. "Influence of Dopant Profiles and Traps on the Low Frequency Noise of Four Gate Transistors." In NOISE AND FLUCTUATIONS: 20th International Conference on Noice and Fluctuations (ICNF-2009). AIP, 2009. http://dx.doi.org/10.1063/1.3140542.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Ciofi, C., G. Scandurra, R. Merlino, G. Cannatà, and G. Giusi. "Four channels cross correlation method for high sensitivity current noise measurements." In SPIE Fourth International Symposium on Fluctuations and Noise, edited by Massimo Macucci, Lode K. Vandamme, Carmine Ciofi, and Michael B. Weissman. SPIE, 2007. http://dx.doi.org/10.1117/12.725528.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Luque Rodriguez, A., J. A. Jimenez Tejada, M. Marun Gonzalez, M. Reverto Planes, P. Lopez Varo, and A. Godoy. "Study of 1/f and generation-recombination noise in four gate transistors." In 2011 21st International Conference on Noise and Fluctuations (ICNF). IEEE, 2011. http://dx.doi.org/10.1109/icnf.2011.5994322.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Jiang, R., N. Alic, C. McKinstrie, and S. Radic. "Four-sideband analysis of dispersion fluctuations in two pump fiber parametric devices." In 2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference. IEEE, 2006. http://dx.doi.org/10.1109/cleo.2006.4627893.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Gil-Molina, Andrés, Ivan A. Aldaya, and Hugo L. Fragnito. "Characterization of Fast Dispersion Fluctuations in Optical Fibers Using Incoherently Pumped Four-Wave Mixing." In Latin America Optics and Photonics Conference. Washington, D.C.: OSA, 2016. http://dx.doi.org/10.1364/laop.2016.lth3b.5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Zhang, Lu, Peng Wu, and DaZhuan Wu. "Analyses of Pressure Fluctuation and Fluctuation Reduction of an Automobile Fuel Pump." In ASME 2016 Fluids Engineering Division Summer Meeting collocated with the ASME 2016 Heat Transfer Summer Conference and the ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/fedsm2016-7820.

Full text

Abstract:

The automobile fuel pump studied in this paper is a mini regenerative pump consisting of a casing with an axial channel and an impeller with 33 radial blades. In this study, the pressure fluctuation characteristics of the regenerative pump were analyzed with the method of unsteady CFD analysis. To investigate the pressure fluctuation, the unsteady Reynolds-averaged Navier-Stokes equations (URANS) were solved with realizable k-ε turbulence model using the CFD code FLUENT. To study the effect of arc length of stripper on the pressure fluctuation, the pressure fluctuations at several locations of pumps with strippers of different arc length were analyzed in time and frequency domain. The static pressure contours at different times were presented to reveal the generating mechanism of pressure fluctuation of the regenerative pump. For the purpose of pressure fluctuation reduction, a random modulation of blade spacing method was applied to design a new impeller with uneven spaced blades. The pressure fluctuations of four different pump units of the combination of different blade distribution impellers with casings of different arc length of stripper were studied and discussed. The pressure fluctuation of the pump unit of combination of random blade distribution impeller and large arc length stripper is significantly reduced. In this paper, the generating mechanism of pressure fluctuation for regenerative pump is uncovered, and a good solution to the fundamental pressure fluctuation reduction of regenerative pump is put forward.

APA, Harvard, Vancouver, ISO, and other styles

8

Parziale, Nick J., Muhammad A. Mustafa, Michael Smith, and Eric C. Marineau. "Amplification and Structure of Streamwise-Velocity Fluctuations in Four Shock-Wave/Turbulent Boundary-Layer Interactions." In 2018 Fluid Dynamics Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2018. http://dx.doi.org/10.2514/6.2018-3704.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Prel, Florent, Stéphane Lantagne, Louis Moreau, and Claude Roy. "Reduction of artifacts from scene intensity fluctuations in Hyperspectral Images Using Four-Port Imaging Spectroradiometer." In Fourier Transform Spectroscopy. Washington, D.C.: OSA, 2015. http://dx.doi.org/10.1364/fts.2015.fw2a.3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Sierra, F. Z., H. C. Lara, J. Kubiak, J. Siqueiros, J. C. Garcia, and G. Urquiza. "Air Flow Turbulent Fluctuations in a Centrifugal Fan." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-79609.

Full text

Abstract:

In this work air flow turbulent fluctuations within the volute-impeller interaction region in a centrifugal fan are analyzed. The fan is part of one group of four similar units that provide the necessary air into a steam generator, in a power plant of 70 MW capacity. A numerical approach based on the finite volume method has been employed to solve the full set of Navier-Stokes equations in 3-D. Multiple reference frame was used to simulate the circular motion of the rotor inside the volute which remained static as well as the air entrance and exit sections. The whole domain was divided into 1.350 × 106 cells. Additional terms due to centrifugal and Coriolis forces were taken into account in the computation. The turbulence was addressed using one model based on renormalized group theory, RNG. Emphasis is focused on describing the velocity field within the annulus in between the rotor and the volute and its fluctuations. One first set of results indicate that the highest velocities appear in the region close to the blades tip, but they decay immediately after entering the annular volute-impeller region. Over there, the flow develops into two zones which are well defined through dynamic and static pressure contours. The results show how the magnitude of turbulence intensity varies according to different operation conditions of the fan, taking as fixed parameter the pressure at exit. The behavior of turbulence in the radial direction for a number of flow sections, starting from the cutter at the exit of the fan are examined as well.

APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Four Fluctuations"

1

Brown, R. C., and J. R. Schroeder. Pressure Fluctuations as a Disgnostic Tool for Fluidized Beds. Office of Scientific and Technical Information (OSTI), October 1997. http://dx.doi.org/10.2172/599011.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Joel R. Schroeder and Robert C. Brown. Pressure Fluctuations as a Diagnostic Tool for Fluidized Beds. Office of Scientific and Technical Information (OSTI), April 1998. http://dx.doi.org/10.2172/2035.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Ethan Bure, Joel R. Schroeder, Ramon De La Cruz, and Robert C. Brown. Pressure Fluctuations as a Diagnostic Tool for Fluidized Beds. Office of Scientific and Technical Information (OSTI), May 1998. http://dx.doi.org/10.2172/2272.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

John A. Krommes. The Remarkable Similarity Between the Scaling of Kurtosis with Squared Skewness for TORPEX Density Fluctuations and Sea-surface Temperature Fluctuations. Office of Scientific and Technical Information (OSTI), February 2008. http://dx.doi.org/10.2172/960225.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Miller, G., and J. C. Ingraham. Equilibrium and fluctuation analysis for ZTH electrical diagnostics. Office of Scientific and Technical Information (OSTI), December 1988. http://dx.doi.org/10.2172/6642822.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Mazzucato, E., and R. Nazikian. Microwave reflectometry for the study of density fluctuations in tokamak plasmas. Office of Scientific and Technical Information (OSTI), December 1990. http://dx.doi.org/10.2172/6377672.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

E. Mazzucato. Microwave Imaging Reflectometry for the Measurement of Turbulent Fluctuations in Tokamaks. Office of Scientific and Technical Information (OSTI), February 2004. http://dx.doi.org/10.2172/821811.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Wu, Lingqi. Micromechanical Disk Array for Enhanced Frequency Stability Against Bias Voltage Fluctuations. Fort Belvoir, VA: Defense Technical Information Center, November 2014. http://dx.doi.org/10.21236/ada624236.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Arnold, P. One-loop fluctuation-dissipation formula for bubble-wall velocity. Office of Scientific and Technical Information (OSTI), June 1993. http://dx.doi.org/10.2172/10166314.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Kim, Chang-Bae, W. Horton, and Bong-Guen Hong. Fluctuation and thermal energy balance for drift-wave turbulence. Office of Scientific and Technical Information (OSTI), May 1990. http://dx.doi.org/10.2172/6846873.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!