Log in

Relevant bibliographies by topics / Density fluctuation

Contents

Journal articles
Dissertations / Theses
Books
Book chapters
Conference papers
Reports

Academic literature on the topic 'Density fluctuation'

Author: Grafiati

Published: 21 April 2023

Last updated: 18 May 2024

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 'Density fluctuation.'

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 "Density fluctuation"

1

Artemenko, S. N. "Modification of charge density wave fluctuations by charge perturbations." Journal de Physique IV 12, no. 9 (2002): 77–78. http://dx.doi.org/10.1051/jp4:20020359.

Full text

Abstract:

Spectral density of fluctuations of the CDW phase are calculated taking into account electric field induced by phase fluctuations. The approach based upon the fluctuation-dissipation theorem (FDT) combined with equations of linear response of the CDW conductor is used. Fluctuating electric field is found to suppress fluctuations of the phase, while fluctuations of the electric potential are sizeable. This suggests that transition from the CDW to the normal state (which is usually observed well below the mean-field transition temperature) may he provoked by fluctuations of the chemical potentia

APA, Harvard, Vancouver, ISO, and other styles

2

Koga, Y. "Fluctuations in aqueous methanol, ethanol, and propan-1-ol: amplitude and wavelength of fluctuation." Canadian Journal of Chemistry 77, no. 12 (1999): 2039–45. http://dx.doi.org/10.1139/v99-213.

Full text

Abstract:

Density, heat capacity, and isentropic compressibility data for aqueous methanol, ethanol, and propan-1-ol by Benson's group were used to evaluate two kinds of fluctuations; mean-square fluctuation densities; and (mean-square) normalized fluctuations, respectively, in volume, entropy, and cross (entropy/volume) effect. The mean-square fluctuation densitiesprovide measures for the amplitude (intensity) of the fluctuation, while the normalized fluctuations contain information regarding the wavelength (extensity) of the fluctuation. Furthermore, their composition derivatives, the partial molar fl

APA, Harvard, Vancouver, ISO, and other styles

3

Laberge, Gaetan J. H., and Rizwan U. Haq. ""Universality" of Gaussian orthogonal ensemble fluctuations: the two-body random ensemble and shell model spectra." Canadian Journal of Physics 68, no. 3 (1990): 301–12. http://dx.doi.org/10.1139/p90-048.

Full text

Abstract:

Starting from an appropriate decomposition of the level density into an average and fluctuating part, we studied the energy level fluctuations of an ensemble defined by two-body random Hamiltonians. A detailed analysis of several spectrally averaged fluctuation measures shows close agreement with the predictions of the Gaussian orthogonal ensemble (GOE). This confirms earlier indications that, except for noninteracting particles, fluctuation measures are insensitive to the rank of the interaction. Further, analysis of spectra obtained from realistic nuclear interactions agrees well with the GO

APA, Harvard, Vancouver, ISO, and other styles

4

KOIKE, MASAFUMI, and JOE SATO. "EFFECTS OF MATTER DENSITY FLUCTUATION IN LONG BASELINE NEUTRINO OSCILLATION EXPERIMENTS." Modern Physics Letters A 14, no. 19 (1999): 1297–302. http://dx.doi.org/10.1142/s0217732399001383.

Full text

Abstract:

The effects of matter density fluctuation in long baseline neutrino oscillation experiments are studied. Effects of short wavelength fluctuations are irrelevant. Effects of long wavelength fluctuations must be checked on a case-by-case basis. As an example we checked the fluctuation effects and showed its irrelevance in a case of K2K experiments.

APA, Harvard, Vancouver, ISO, and other styles

5

Heidbrink, W. W. "Beam density fluctuation diagnostic." Review of Scientific Instruments 59, no. 9 (1988): 2008–11. http://dx.doi.org/10.1063/1.1140067.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

LAYEK, BISWANATH, SOMA SANYAL, and AJIT M. SRIVASTAVA. "BARYOGENESIS VIA DENSITY FLUCTUATIONS WITH A SECOND ORDER ELECTROWEAK PHASE TRANSITION." International Journal of Modern Physics A 18, no. 26 (2003): 4851–68. http://dx.doi.org/10.1142/s0217751x03015799.

Full text

Abstract:

We consider the presence of cosmic string induced density fluctuations in the universe at temperatures below the electroweak phase transition temperature. Resulting temperature fluctuations can restore the electroweak symmetry locally, depending on the amplitude of fluctuations and the background temperature. The symmetry will be spontaneously broken again in a given fluctuation region as the temperature drops there (for fluctuations with length scales smaller than the horizon), resulting in the production of baryon asymmetry. The time scale of the transition will be governed by the wavelength

APA, Harvard, Vancouver, ISO, and other styles

7

Singh, Rajeev. "Quantum fluctuations of baryon number density." Journal of Physics: Conference Series 2105, no. 1 (2021): 012006. http://dx.doi.org/10.1088/1742-6596/2105/1/012006.

Full text

Abstract:

Abstract Quantum fluctuation expression of the baryon number for a subsystem consisting of hot relativistic spin− 1 2 particles are derived. These fluctuations seems to diverge in the limit where system size goes to zero. For a broad range of thermodynamic parameters numerical solutions are obtained which might be helpful to interpret the heavy-ion experimental data.

APA, Harvard, Vancouver, ISO, and other styles

8

Bai, Yujoung, Chang-Mo Ryu, Chul Koo Kim, Sang Koo You, and Kyun Nahm. "Spin-density fluctuation in paramagnets." Physical Review B 54, no. 1 (1996): 33–36. http://dx.doi.org/10.1103/physrevb.54.33.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Azzazy, M., D. Modarress, and T. Hoeft. "High-sensitivity density fluctuation detector." Journal of Physics E: Scientific Instruments 20, no. 4 (1987): 428–31. http://dx.doi.org/10.1088/0022-3735/20/4/017.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

MOSTOVOY, MAXIM, and JASPER KNOESTER. "INSTANTON CALCULATION OF THE DENSITY OF STATES OF DISORDERED PEIERLS CHAINS." International Journal of Modern Physics B 13, no. 13 (1999): 1601–18. http://dx.doi.org/10.1142/s0217979299001594.

Full text

Abstract:

We use the optimal fluctuation method to find the density of electron states inside the pseudogap in disordered Peierls chains. The electrons are described by the one-dimensional Dirac Hamiltonian with randomly varying mass (the Fluctuating Gap Model). We establish a relation between the disorder average in this model and the quantum-mechanical average for a certain double-well problem. We show that the optimal disorder fluctuation, which has the form of a soliton–antisoliton pair, corresponds to the instanton trajectory in the double-well problem. We use the instanton method developed for the

APA, Harvard, Vancouver, ISO, and other styles

Dissertations / Theses on the topic "Density fluctuation"

1

Côté, Alain C. "Density fluctuation measurements with laser scattering." Thesis, University of Oxford, 1989. http://ora.ox.ac.uk/objects/uuid:2580d8c1-32f7-40c6-afe1-14ebde9641f3.

Full text

Abstract:

-2 power law. The average phase velocities are around 4.5 km/sec and are slightly larger than the electron diamagnetic drift velocity. The waves are tentatively identified with the electron drift mode. Coherent signals due to long wavelength MHD modes are detected. Results from a Langmuir probe corroborate most of these data.

APA, Harvard, Vancouver, ISO, and other styles

2

Mali, Provash. "Density fluctuation and correlation study of multiperticles production in 28Si-Ag/Br interaction at 14.5A GeV." Thesis, University of North Bengal, 2016. http://hdl.handle.net/123456789/2757.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Colonna, Nicola. "Exchange and correlation energy in the adiabatic connection fluctuation-dissipation theory beyond RPA." Doctoral thesis, SISSA, 2014. http://hdl.handle.net/20.500.11767/3863.

Full text

Abstract:

Density functional theory (DFT) within standard local density/generalized gradient approximations (LDA/GGAs) have been proved to succesfully predict the properties of a wide class of electronic systems at a reasonable computational time. However there exist a number of situations in wich DFT within LDA/GGAs qualitatively fails. One of such problems is their inability, due their intrinsic local nature, to describe long-range interaction between non overlapping molecular fragments, or weakly bound systems such as molecules about to break during a chemical reaction. The Adiabatic Connection Fluc

APA, Harvard, Vancouver, ISO, and other styles

4

Xu, Peng Ph D. Massachusetts Institute of Technology. "Polarimetry measurements of current density profile and fluctuation changes during lower hybrid experiments on Alcator C-Mod." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/84391.

Full text

Abstract:

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, September 2013.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 179-186).<br>As a possible method to achieve steady-state plasma operation in a tokamak fusion reactor, Lower Hybrid Current Drive (LHCD) has been extensively studied on Alcator C-Mod. The measurement of current density profiles (or poloidal magnetic field or safety factor) is essential to the understanding of the LH physics. A polarimeter measures the line-integral of the electron density times the magnetic field paral

APA, Harvard, Vancouver, ISO, and other styles

5

Soula, Serge. "Influence de l'effet couronne sur le champ electrique mesure au voisinage du sol sous orage." Toulouse 3, 1986. http://www.theses.fr/1986TOU30213.

Full text

Abstract:

Generalites sur l'electricite des orages. Mise au point d'un appareil de type gardien pour mesurer la densite ionique. Resultats experimentaux obtenus durant deux campagnes: ils concernent d'une part les mesures de champ electrique a plusieurs hauteurs dans les domaines des variations lentes et rapides, d'autre part celles de la densite ionique. Theorie du courant de maxwell sour l'orage. Simulation de l'evolution des divers parametres electriques venant confirmer les resultats experimentaux.

APA, Harvard, Vancouver, ISO, and other styles

6

El, Dib Georges. "Fibres optiques en verre de borophosphate de niobium pour des applications en optique non linéaire." Electronic Thesis or Diss., Limoges, 2023. http://www.theses.fr/2023LIMO0004.

Full text

Abstract:

Les principaux objectifs de cette thèse étaient de développer des fibres optiques de borophosphate riche en niobium avec une qualité optique améliorée ainsi que de tirer profit de leur haute non linéarité pour des applications comme dispositifs de guides d'ondes dans le proche infrarouge. Les travaux exposés dans cette thèse traitent d’aspects théoriques et pratiques en science des verres. Ils s’articulent autour du système vitreux borophosphate riche en niobium : (100-x) [(0,95 NaPO3 + 0,05 Na2B4O7)] - x Nb2O5 ; avec x le taux (mol %) de Nb2O5 dans le verre. Dans un premier temps, une étude d

APA, Harvard, Vancouver, ISO, and other styles

7

GALASSO, SARA. "Generalization of the Eliashberg equations and Density Functional Theory applied to the analysis of the fundamental properties of iron-based superconductors." Doctoral thesis, Politecnico di Torino, 2015. http://hdl.handle.net/11583/2596360.

Full text

Abstract:

Density Functional Theory (DFT) allows a fully ab-initio treatment of almost all the quantities that enter in the Eliashberg theory and in many other approaches used to study both the superconducting and the normal phase. A complete description from first principles of real materials is, al least in principle, possible. Here DFT and Eliashberg theory are applied to the study of some members of the new family of superconductors discovered in 2008, the iron-compounds. Superconductivity here is unconventional and unlikely mediated by phonons. When electronic mechanisms are involved and the prope

APA, Harvard, Vancouver, ISO, and other styles

8

Xie, Tao. "Hydrodynamic characteristics of gas/liquid/fiber three-phase flows based on objective and minimally-intrusive pressure fluctuation measurements." Diss., Available online, Georgia Institute of Technology, 2004:, 2004. http://etd.gatech.edu/theses/available/etd-09192004-033703/unrestricted/xie%5Ftao%5F200412%5Fphd.pdf.

Full text

Abstract:

Thesis (Ph. D.)--Mechanical Engineering, Georgia Institute of Technology, 2005.<br>D. William Tedder, Committee Member ; Minami Yoda, Committee Member ; Tom McDonough, Committee Member ; Andrei G. Fedorov, Committee Member ; S. Mostafa Ghiaasiaan, Committee Chair ; Seppo Karrila, Committee Member. Includes bibliographical references.

APA, Harvard, Vancouver, ISO, and other styles

9

Nguyen, Van Thinh. "Contribution à l'étude de la structure de la turbulence près d'une paroi lisse." Paris 6, 1987. http://www.theses.fr/1987PA066553.

Full text

Abstract:

Etude théorique des champs turbulents non homogènes. Etude de l'écoulement turbulent établi dans une conduite rectangulaire très allongée. Etude de la région au voisinage proche de la paroi. Etude expérimentale par anémométrie à fil chaud. Détermination des vitesses moyennes, fluctuations longitudinales de vitesse, densités spectrales et corrélations, densités de probabilité.

APA, Harvard, Vancouver, ISO, and other styles

10

Mahmoud, Ali. "Analyseur de spectre à haute résolution : Apllication à la mesure des oscillateurs ultrastables." Besançon, 1989. http://www.theses.fr/1989BESA2004.

Full text

Abstract:

Une methode de mesure par intercorrelation utilisant l'intercomparaison de trois oscillateurs deux a deux, permet de mesurer les fluctuations de phase ou de frequence des oscillateurs ultrastables. Nous presentons l'etude et la realisation d'un analyseur de spectre par correlation. Cet appareil permet d'analyser la fonction de correlation ou de calculer la densite spectrale de puissance du bruit de phase de l'oscillateur a mesurer

APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "Density fluctuation"

1

Center, Langley Research, ed. A real time dynamic data acquisition and processing system for velocity, density, and total temperature fluctuation measurements. National Aeronautics and Space Administration, Langley Research Center, 1991.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

2

Kolb, Edward W. Origin of density fluctuations in extended inflation. Fermi National Accelerator Laboratory, 1990.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

3

Bowles, R. J. Density profiles and concentration fluctuations in liquid binary mixtures. University of East Anglia, 1986.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

4

Haney, Robert L. Estimating subpycnocline density fluctuations in the California Current region from upper ocean observations. Naval Postgraduate School, 1994.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

5

McCann, Edward. Mesoscopic fluctuations of the electronic density of states in disordered systems. University of Birmingham, 1996.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

6

United States. National Aeronautics and Space Administration., ed. Measurement of temperature and density fluctuations in turbulence using an ultraviolet laser. San Diego State University, 1986.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

7

L, McKenzie Robert, and Ames Research Center, eds. Measurements of density,temperature, and their fluctuations in turbulent supersonic flow using UV laser spectroscopy. National Aeronautics and Space Administration, Ames Research Center, 1992.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

8

United States. National Aeronautics and Space Administration., ed. Quenching of the beam-plasma instability by 3-D spectra of large scale density fluctuations. University of Colorado, 1985.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

9

L, McKenzie R., and Ames Research Center, eds. Measurements of density,temperature, and their fluctuations in turbulent supersonic flow using UV laser spectroscopy. National Aeronautics and Space Administration, Ames Research Center, 1992.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

10

L, McKenzie Robert, and Ames Research Center, eds. Measurements of density,temperature, and their fluctuations in turbulent supersonic flow using UV laser spectroscopy. National Aeronautics and Space Administration, Ames Research Center, 1992.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Density fluctuation"

1

Niquet, Y. M., and M. Fuchs. "The Exchange-Correlation Potential in the Adiabatic-Connection Fluctuation-Dissipation Framework." In Time-Dependent Density Functional Theory. Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/3-540-35426-3_29.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Gómez González, Rubén, and Vicente Garzó. "Kinetic Theory of Binary Granular Suspensions at Low Density. Thermal Diffusion Segregation." In Nonequilibrium Thermodynamics and Fluctuation Kinetics. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-04458-8_9.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Balestrino, G., E. Milani, and A. A. Varlamov. "The Role of Density of States Fluctuations on the C-Axis Resistivity of High T c Superconductors." In Fluctuation Phenomena in High Temperature Superconductors. Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5536-6_15.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Mansour, M. Malek, M. Mareschal, G. Sonnino, and E. Kestemont. "Molecular Dynamic Study of Density Fluctuation in a Non-equilibrium system." In Microscopic Simulations of Complex Hydrodynamic Phenomena. Springer US, 1992. http://dx.doi.org/10.1007/978-1-4899-2314-1_6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Karthikeyan, Muthusamy. "Evaluation of statistical fluctuation of measured data from nuclear density cone penetrometer." In Cone Penetration Testing 2022. CRC Press, 2022. http://dx.doi.org/10.1201/9781003329091-18.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Karthikeyan, Muthusamy. "Evaluation of statistical fluctuation of measured data from nuclear density cone penetrometer." In Cone Penetration Testing 2022. CRC Press, 2022. http://dx.doi.org/10.1201/9781003308829-18.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Chu, Yaoquan, and Lizhi Fang. "Luminosity Inhomogeneity of Quasars and the Upper Limit of the Density Fluctuation in the Universe." In The Galactic and Extragalactic Background Radiation. Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0653-2_83.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Kaur, Manpreet, Ankit Kumar, Abdul Quddus, M. Bhuyan, and S. K. Patra. "Symmetry Energy of Finite Nuclei Using Relativistic Mean Field Densities within Coherent Density Fluctuation Model." In Multifragmentation in Heavy-Ion Reactions. Jenny Stanford Publishing, 2023. http://dx.doi.org/10.1201/9781003385134-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Antonov, Anton Nikolaev, Peter Edward Hodgson, and Ivan Zhelyazkov Petkov. "Ground and Excited Collective Nuclear States within the Coherent Density Fluctuation Model and the Generator Coordinate Method." In Springer Series in Nuclear and Particle Physics. Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-77766-0_8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Fang, Li-Zhi, and Yi-Peng Jing. "Density Fluctuations on Super-Hubble Scales." In Modern Mathematical Models of Time and their Applications to Physics and Cosmology. Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5628-8_6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Density fluctuation"

1

Degiorai, L., and G. Groner. "Fluctuation effects in charge density wave condensates." In International Conference on Science and Technology of Synthetic Metals. IEEE, 1994. http://dx.doi.org/10.1109/stsm.1994.835922.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Pan, Honglu, Penghui Su, Xiaoli Cheng, and Handong Ma. "Coefficient Revision for Supersonic Turbulent Density Fluctuation Model." In 34th AIAA Applied Aerodynamics Conference. American Institute of Aeronautics and Astronautics, 2016. http://dx.doi.org/10.2514/6.2016-3425.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Toronov, V., M. Filiaci, S. Fantini, and E. Gratton. "Study of Large Scale Fluctuations in Turbid Media by Photon-Density-Wave Fluctuation Correlation Spectroscopy." In Advances in Optical Imaging and Photon Migration. OSA, 1998. http://dx.doi.org/10.1364/aoipm.1998.asub7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Li Fang. "Intrinsic electron density fluctuation in a plasma with dust." In Proceedings of ISAPE 2000: Fifth International Symposium on Antennas, Propagation, and EM Theory. IEEE, 2000. http://dx.doi.org/10.1109/isape.2000.894841.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Koutin, S. V., and A. N. Lebedev. "Density effects on quantum fluctuation of radiation in synchrotrons." In The sixteenth advanced international committee on future accelerators beam dynamics workshop on nonlinear and collective phenomena in beam physics. AIP, 1999. http://dx.doi.org/10.1063/1.58419.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Wei, H., and C. Chen. "A second-order algebraic model for turbulent density fluctuation." In 34th Aerospace Sciences Meeting and Exhibit. American Institute of Aeronautics and Astronautics, 1996. http://dx.doi.org/10.2514/6.1996-427.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Peterleithner, Johannes, Nicolai V. Stadlmair, Jakob Woisetschläger, and Thomas Sattelmayer. "Analysis of Measured Flame Transfer Functions With Locally Resolved Density Fluctuation and OH-Chemiluminescence Data." In ASME Turbo Expo 2015: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/gt2015-42745.

Full text

Abstract:

The goal of the study presented in this paper is to analyze flame transfer functions with a new approach based on the combination of-line-of sight OH*-chemiluminescence and density fluctuation data. The OH*-chemiluminescence is acquired with a photomultiplier and an intensified camera, the density fluctuations are measured with a Laser vibrometer on a two axis traverse. In flames with forcing the acoustic fluctuations can be extracted from the data by discrimination of all contributions from combustion noise, because it is not correlated with the excitation device. Assuming rotational symmetry

APA, Harvard, Vancouver, ISO, and other styles

8

Takei, Masahiro, Hui Li, Mitsuaki Ochi, Yoshifuru Saito, and Kiyoshi Horii. "3D Wavelet Multiresolution of Multiphase Flow CT Images." In ASME 2002 Joint U.S.-European Fluids Engineering Division Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/fedsm2002-31118.

Full text

Abstract:

The extraction of dominant particle density fluctuation in various time-space frequency levels on a pipeline cross section was performed using capacitance-computed tomography and three-dimensional discrete wavelets transform. As a result, particle density fluctuation downstream of a bent pipe is decomposed into the time-space levels in a non-choking state and a pseudo-choking state. The proposed method enables realization of the time and position at which particle density fluctuations with respect to dominant time-space levels pass through the pipeline.

APA, Harvard, Vancouver, ISO, and other styles

9

Hori, Yoshikazu, Yasushi Matsui, Jun Ohya, Hiroyuki Serizawa, and Hisanao Sato. "Theoretical Analysis of Reflection Noise in Semiconductor Lasers." In Numerical Simulation and Analysis in Guided-Wave Optics and Opto-Electronics. Optica Publishing Group, 1989. http://dx.doi.org/10.1364/gwoe.1989.sa2.

Full text

Abstract:

Intensity fluctuations of semiconductor lasers due to optical feedback were theoretically analyzed by using modified rate equations which include a refractive index fluctuation. Photon density fluctuations were simulated, and their Fourier transformed spectra were obtained and analyzed. Optical beating of the external cavity modes, which generates the fluctuation of the refractive indices of the semiconductor materials, is proved to be an origin of the reflection noise.

APA, Harvard, Vancouver, ISO, and other styles

10

Kasahara, Naoto, Nobuyuki Kimura, and Hideki Kamide. "Thermal Fatigue Evaluation Method Based on Power Spectrum Density Functions Against Fluid Temperature Fluctuation." In ASME 2005 Pressure Vessels and Piping Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/pvp2005-71307.

Full text

Abstract:

Fluid temperature fluctuates at an incomplete mixing area of high and low temperature fluids in nuclear components. It induces random variations of local temperature gradients in structural walls, which lead to cyclic thermal stresses. When thermal stresses and cycle numbers are large, there are possibilities of fatigue crack initiations and propagations. It is recognized that there are attenuation factors depending on fluctuation frequency in the transfer process from fluid temperature to thermal stresses. If a frequency of fluctuation is very low, whole temperature of the wall can respond to

APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Density fluctuation"

1

Thomas, D. M. An edge density fluctuation diagnostic for DIII-D using lithium beams. Office of Scientific and Technical Information (OSTI), 1991. http://dx.doi.org/10.2172/5690058.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

H. Park, E. Mazzucato, T. Munsat, et al. Simultaneous Microwave Imaging System for Density and Temperature Fluctuation Measurements on TEXTOR. Office of Scientific and Technical Information (OSTI), 2004. http://dx.doi.org/10.2172/827935.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Thomas, D. M. Edge density fluctuation diagnostic for DIII-D using lithium beams: 1992 annual report. Office of Scientific and Technical Information (OSTI), 1994. http://dx.doi.org/10.2172/10149833.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Thomas, D. M. An edge density fluctuation diagnostic for DIII-D using lithium beams. Final report, March 15, 1990--September 15, 1993. Office of Scientific and Technical Information (OSTI), 1994. http://dx.doi.org/10.2172/10134983.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Thomas, D. M. An edge density fluctuation diagnostic for DIII-D using lithium beams. Technical progress report, [August 15, 1990--November 15, 1991]. Office of Scientific and Technical Information (OSTI), 1991. http://dx.doi.org/10.2172/10122969.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Shen, W., R. N. Dexter, and S. C. Prager. Current density fluctuations and ambipolarity of transport. Office of Scientific and Technical Information (OSTI), 1991. http://dx.doi.org/10.2172/10109823.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Shen, W., R. N. Dexter, and S. C. Prager. Current density fluctuations and ambipolarity of transport. Office of Scientific and Technical Information (OSTI), 1991. http://dx.doi.org/10.2172/6134418.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Nazikian, R., and E. Mazzucato. Reflectometer measurements of density fluctuations in tokamak plasmas. Office of Scientific and Technical Information (OSTI), 1994. http://dx.doi.org/10.2172/10172218.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Shen, Weimin. Measurement of current density fluctuations and ambipolar particle flux due to magnetic fluctuations in MST. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/7273865.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Shen, Weimin. Measurement of current density fluctuations and ambipolar particle flux due to magnetic fluctuations in MST. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/10174846.

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!