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Journal articles on the topic 'Density wave'

Author: Grafiati
Published: 4 June 2021
Last updated: 15 February 2022

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1

Dóra, B., K. Maki, and A. Virosztek. "Magnetotransport in d -wave density waves." Europhysics Letters (EPL) 72, no. 4 (November 2005): 624–30. http://dx.doi.org/10.1209/epl/i2005-10272-2.

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2

Tomiyoshi, Shoichi, Hiroyuki Ohsumi, Hisao Kobayashi, and Akiji Yamamoto. "Charge Density Wave Accompanied by Spin Density Wave in Mn3Si." Journal of the Physical Society of Japan 83, no. 4 (April 15, 2014): 044715. http://dx.doi.org/10.7566/jpsj.83.044715.

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3

Voitenko, A. I., and A. M. Gabovich. "Charge density waves in d-wave superconductors." Low Temperature Physics 36, no. 12 (December 2010): 1049–57. http://dx.doi.org/10.1063/1.3533237.

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4

Dóra, B., K. Maki, and A. Virosztek. "D-wave density waves in CeCoIn5and highTccuprates." Journal de Physique IV (Proceedings) 131 (December 2005): 319–22. http://dx.doi.org/10.1051/jp4:2005131081.

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5

Pretre, A., and T. M. Rice. "Spin-density-wave state in a charge-density-wave domain wall." Journal of Physics C: Solid State Physics 19, no. 9 (March 30, 1986): 1363–76. http://dx.doi.org/10.1088/0022-3719/19/9/009.

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6

Maki, Kazumi. "Spin-density-wave and charge-density-wave fluctuation and electric conductivity." Physical Review B 41, no. 13 (May 1, 1990): 9308–14. http://dx.doi.org/10.1103/physrevb.41.9308.

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7

Wang, Chui-lin, Wen-zheng Wang, Guo-liang Gu, Zhao-bin Su, and Lu Yu. "Localized excitations in competing bond-order-wave, charge-density-wave, and spin-density-wave systems." Physical Review B 48, no. 15 (October 15, 1993): 10788–803. http://dx.doi.org/10.1103/physrevb.48.10788.

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8

Wang, Chui-Lin, Wen-Zheng Wang, Guo-Liang Gu, Zhao-Bin Su, and Lu Yu. "Localized Excitations in Competing Bond-Order-Wave, Charge-Density-Wave and Spin-Density Wave Systems." Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 256, no. 1 (November 1994): 903–8. http://dx.doi.org/10.1080/10587259408039345.

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9

Tang, Huai-Gu, Bing-Shou He, and Hai-Bo Mou. "P- and S-wave energy flux density vectors." GEOPHYSICS 81, no. 6 (November 2016): T357—T368. http://dx.doi.org/10.1190/geo2016-0245.1.

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The conventional energy flux density vector indicates the propagation direction of mixed P- and S-wave wavefields, which means when a wavefront of P-wave encounters a wavefront of S-wave with different propagation directions, the vectors cannot indicate both directions accurately. To avoid inaccuracies caused by superposition of P- and S-waves in a conventional energy flux density vector, P- and S-wave energy flux density vectors should be calculated separately. Because the conventional energy flux density vector is obtained by multiplying the stress tensor by the particle-velocity vector, the common way to calculate P- and S-wave energy flux density vectors is to decompose the stress tensor and particle-velocity vector into the P- and S-wave parts before multiplication. However, we have found that the P-wave still interfere with the S-wave energy flux density vector calculated by this method. Therefore, we have developed a new method to calculate P- and S-wave energy flux density vectors based on a set of new equations but not velocity-stress equations. First, we decompose elastic wavefield by the set of equations to obtain the P- and S-wave particle-velocity vectors, dilatation scalar, and rotation vector. Then, we calculate the P-wave energy flux density vector by multiplying the P-wave particle-velocity vector by dilatation scalar, and we calculate the S-wave energy flux density vector as a cross product of the S-wave particle-velocity vector and rotation vector. The vectors can indicate accurate propagation directions of P- and S-waves, respectively, without being interfered by the superposition of the two wave modes.
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10

Latyshev, Yu I., P. Monceau, O. Laborde, and B. Pannetier. "Charge density wave mesoscopy." Synthetic Metals 103, no. 1-3 (June 1999): 2582–85. http://dx.doi.org/10.1016/s0379-6779(98)00246-x.

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11

Moudden, A. H., J. D. Axe, P. Monceau, and F. Levy. "q1charge-density wave inNbSe3." Physical Review Letters 65, no. 2 (July 9, 1990): 223–26. http://dx.doi.org/10.1103/physrevlett.65.223.

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12

Visscher, Mark I., and Gerrit E. W. Bauer. "Charge density wave ratchet." Applied Physics Letters 75, no. 7 (August 16, 1999): 1007–9. http://dx.doi.org/10.1063/1.124580.

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13

Gill, J. C., and H. H. Wills. "Charge-density wave transport." Contemporary Physics 27, no. 1 (January 1986): 37–59. http://dx.doi.org/10.1080/00107518608210997.

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14

Thorne, Robert E. "Charge‐Density‐Wave Conductors." Physics Today 49, no. 5 (May 1996): 42–47. http://dx.doi.org/10.1063/1.881498.

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15

Dressel, M., A. Schwartz, A. Blank, T. Csiba, G. Grüner, B. P. Gorshunov, A. A. Volkov, G. V. Kozlov, and L. Degiorgi. "Charge-density-wave paraconductivity." Synthetic Metals 71, no. 1-3 (April 1995): 1893–94. http://dx.doi.org/10.1016/0379-6779(94)03095-n.

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16

Tabata, Y., T. Taniguchi, S. Kawarazaki, Y. Narumi, S. Kimura, Y. Tanaka, K. Katsumata, et al. "Spin density wave and charge density wave in the Kondo-lattice compound." Physica B: Condensed Matter 359-361 (April 2005): 260–62. http://dx.doi.org/10.1016/j.physb.2005.01.061.

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17

Wang, Wen-Zheng, Chui-Lin Wang, Zhao-Bin Su, and Lu Yu. "Localized excitations in competing charge-density-wave and spin-density-wave systems." Synthetic Metals 56, no. 2-3 (April 1993): 3370–76. http://dx.doi.org/10.1016/0379-6779(93)90130-o.

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18

Long, M. W., and W. Yeung. "Spin waves in multiple-spin-density-wave systems." Journal of Physics C: Solid State Physics 19, no. 9 (March 30, 1986): 1409–29. http://dx.doi.org/10.1088/0022-3719/19/9/012.

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19

Marinov, Kiril B., and Stephan I. Tzenov. "Nonlinear density waves in the single-wave model." Physics of Plasmas 18, no. 3 (March 2011): 032305. http://dx.doi.org/10.1063/1.3562878.

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20

Nikonov, S. A., S. G. Zybtsev, and V. Ya Pokrovskii. "RF wave mixing with sliding charge-density waves." Applied Physics Letters 118, no. 25 (June 21, 2021): 253108. http://dx.doi.org/10.1063/5.0051636.

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21

Shakespeare, Callum J., and John R. Taylor. "Spontaneous Wave Generation at Strongly Strained Density Fronts." Journal of Physical Oceanography 46, no. 7 (July 2016): 2063–81. http://dx.doi.org/10.1175/jpo-d-15-0043.1.

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AbstractA simple analytical model is presented describing the spontaneous generation of inertia–gravity waves at density fronts subjected to strong horizontal strain rates. The model considers fronts of arbitrary horizontal and vertical structure in a semi-infinite domain, with a single boundary at the ocean surface. Waves are generated because of the acceleration of the steady uniform strain flow around the density front, analogous to the generation of lee waves via flow over a topographic ridge. Significant wave generation only occurs for sufficiently strong strain rates α > 0.2f and sharp fronts H/L > 0.5f/N, where f is the Coriolis parameter, N is the stratification, and H and L are the height and width scales of the front, respectively. The frequencies of the generated waves are entirely determined by the strain rate. The lowest-frequency wave predicted to be generated via this mechanism has a Lagrangian frequency ω = 1.93f as measured in a reference frame moving with the background strain flow. The model is intended as a first-order description of wave generation at submesoscale (1 to 10 km wide) fronts where large strain rates are commonplace. The analytical model compares well with fully nonlinear numerical simulations of the submesoscale regime.
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22

Pradhan, B., B. K. Raj, and G. C. Rout. "Interplay of charge density wave and spin density wave in high-Tc superconductors." Physica C: Superconductivity 468, no. 23 (December 2008): 2332–35. http://dx.doi.org/10.1016/j.physc.2008.08.010.

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23

Bjeliš, Aleksa, and Kazumi Maki. "Spin-density-wave and charge-density-wave phason coherence lengths in magnetic fields." Physical Review B 45, no. 22 (June 1, 1992): 12887–92. http://dx.doi.org/10.1103/physrevb.45.12887.

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24

Thongcham, K., and P. Udomsamuthirun. "Thermodynamic Properties of Superconductor with Competing Spin-Density Wave and Charge-Density Wave." Journal of Superconductivity and Novel Magnetism 28, no. 8 (April 12, 2015): 2299–305. http://dx.doi.org/10.1007/s10948-015-3049-y.

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25

Lin, N., E. Lee, F. Mozer, G. K. Parks, M. Wilber, and H. Rème. "Nonlinear low-frequency wave aspect of foreshock density holes." Annales Geophysicae 26, no. 12 (November 25, 2008): 3707–18. http://dx.doi.org/10.5194/angeo-26-3707-2008.

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Abstract. Recent observations have uncovered short-duration density holes in the Earth's foreshock region. There is evidence that the formation of density holes involves non-linear growth of fluctuations in the magnetic field and plasma density, which results in shock-like boundaries followed by a decrease in both density and magnetic field. In this study we examine in detail a few such events focusing on their low frequency wave characteristics. The propagation properties of the waves are studied using Cluster's four point observations. We found that while these density hole-structures were convected with the solar wind, in the plasma rest frame they propagated obliquely and mostly sunward. The wave amplitude grows non-linearly in the process, and the waves are circularly or elliptically polarized in the left hand sense. The phase velocities calculated from four spacecraft timing analysis are compared with the velocity estimated from δE/δB. Their agreement justifies the plane electromagnetic wave nature of the structures. Plasma conditions are found to favor firehose instabilities. Oblique Alfvén firehose instability is suggested as a possible energy source for the wave growth. Resonant interaction between ions at certain energy and the waves could reduce the ion temperature anisotropy and thus the free energy, thereby playing a stabilizing role.
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26

Inoue, Kazuko, and Tomio Ariyasu. "Sound waves and shock waves in high-density deuterium." Laser and Particle Beams 9, no. 4 (December 1991): 795–816. http://dx.doi.org/10.1017/s026303460000656x.

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The possibility of compressing the cryogenic hollow pellet of inertial confinement nuclear fusion with multiple adiabatic shock waves is discussed, on the basis of the estimation of the properties of a high-density deuterium plasma (1024−1027 cm−3, 10−1−104 eV), such as the velocity and the attenuation constant of the adiabatic sound wave, the width of the shock wave, and the surface tension.It is found that in the course of compression the wavelength of the adiabatic sound wave and the width of the weak shock wave sometimes become comparable to or exceed the fuel shell width of the pellet, and that the surface tension is negative. These results show that it is rather difficult to compress stably the hollow pellet with successive weak shock waves.
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27

Lee, Jysoo, and Michael Leibig. "Density waves in granular flow: a kinetic wave approach." Journal de Physique I 4, no. 4 (April 1994): 507–14. http://dx.doi.org/10.1051/jp1:1994156.

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28

Spangler, S. R. "Interstellar Magnetohydrodynamic Waves as Revealed by Radio Astronomy." Symposium - International Astronomical Union 140 (1990): 176. http://dx.doi.org/10.1017/s0074180900189880.

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The plasma density fluctuations responsible for interstellar scintillations occur on the same scales as interstellar magnetohydrodynamic waves (Alfvén waves), which are responsible for many important processes such as the acceleration of the cosmic rays. This suggests that these density fluctuations represent a compressive component of MHD waves, and raises the exciting possibility that radioastronomical observations can provide more or less direct measurements of interstellar microphysical processes. Extraction of MHD wave properties from the radio scattering measurements requires a sound theoretical understanding of the relationship between the magnetic field in an MHD wave and the corresponding plasma density perturbation. We present a plasma kinetic theory treatment of the density compression associated with an MHD wave field. The density perturbation may be expressed as the sum of three terms. These terms are proportional to the wave amplitude, wave intensity, and sine transform of the wave intensity, respectively. The coefficients of these three terms are functions of the plasma β, the electron-to-ion temperature ratio, and the angle of wave propagation with respect to the large scale magnetic field. This relation can serve as the basis for inferring the MHD wave field given a radio scattering measurement of the density fluctuation statistics. In an attempt to apply these ideas to the interstellar plasma turbulence, we have made VLBI angular broadening measurements of sources whose lines of sight pass close to supernova remnants. The intensity of MHD waves is expected to be high in the vicinity of the shock waves associated with supernova remnants. We do not yet have unambiguous evidence of enhanced radio wave scattering due to shock-associated MHD waves. However, we have found anomalously high scattering for the source CL4, whose line of sight passes through the Cygnus Loop.
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29

Ong, Nai Phuan, and Pierre Monceau. "Charge‐Density Wave Compound Comment." Physics Today 44, no. 6 (June 1991): 137–39. http://dx.doi.org/10.1063/1.2810159.

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30

Bjeliš, A. "Charge Density Wave Dynamics - Theory." Physica Scripta T29 (January 1, 1989): 62–66. http://dx.doi.org/10.1088/0031-8949/1989/t29/010.

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31

DiCarlo, D., R. E. Thorne, E. Sweetland, M. Sutton, and J. D. Brock. "Charge-density-wave structure inNbSe3." Physical Review B 50, no. 12 (September 15, 1994): 8288–96. http://dx.doi.org/10.1103/physrevb.50.8288.

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32

Bu, Yanyan, and Shu Lin. "Holographic magnetized chiral density wave." Chinese Physics C 42, no. 11 (October 2018): 114104. http://dx.doi.org/10.1088/1674-1137/42/11/114104.

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33

Zant, H. J. S. van der, N. Markovic, and E. Slot. "Submicron charge-density-wave devices." Physics-Uspekhi 44, no. 10S (October 1, 2001): 61–65. http://dx.doi.org/10.1070/1063-7869/44/10s/s12.

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34

Visscher, Mark I., and Gerrit E. W. Bauer. "Mesoscopic charge-density-wave junctions." Physical Review B 54, no. 4 (July 15, 1996): 2798–805. http://dx.doi.org/10.1103/physrevb.54.2798.

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35

Matsuura, T., J. Hara, K. Inagaki, M. Tsubota, T. Hosokawa, and S. Tanda. "Charge density wave soliton liquid." EPL (Europhysics Letters) 109, no. 2 (January 1, 2015): 27005. http://dx.doi.org/10.1209/0295-5075/109/27005.

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36

Gaál, R., S. Donovan, Zs Sörlei, and G. Mihály. "Photoinduced charge-density-wave conduction." Physical Review Letters 69, no. 8 (August 24, 1992): 1244–47. http://dx.doi.org/10.1103/physrevlett.69.1244.

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37

Gorshunov, B. P., A. A. Volkov, G. V. Kozlov, L. Degiorgi, A. Blank, T. Csiba, M. Dressel, Y. Kim, A. Schwartz, and G. Grüner. "Charge-density-wave paraconductivity inK0.3MoO3." Physical Review Letters 73, no. 2 (July 11, 1994): 308–11. http://dx.doi.org/10.1103/physrevlett.73.308.

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38

Machida, Kazushige, and Masaru Kato. "Is Spin Density Wave Always Harmful to Superconductivity? -TcEnhancement Due to Density Wave Instabilities-." Japanese Journal of Applied Physics 26, Part 2, No. 5 (May 20, 1987): L660—L662. http://dx.doi.org/10.1143/jjap.26.l660.

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39

Bau, H. H. "Torsional Wave Sensor—A Theory." Journal of Applied Mechanics 53, no. 4 (December 1, 1986): 846–48. http://dx.doi.org/10.1115/1.3171869.

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Experimental observations suggest that the speed of propagation of torsional waves in a solid, elastic wave guide with a noncircular cross section is inversely proportional to the density of the fluid adjacent to the waveguide. Thus, by measuring the speed of propagation of the torsional wave, one can infer the density of the fluid. Additionally, the above procedure may be utilized to measure, among other things, liquid level and the composition of binary solutions. A simple theory is derived to correlate the torsional wave speed and the fluid density; the theoretical results are also compared with experiments.
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40

Lehmann, M., J. Schmidt, and H. Salo. "Density waves and the viscous overstability in Saturn’s rings." Astronomy & Astrophysics 623 (March 2019): A121. http://dx.doi.org/10.1051/0004-6361/201833613.

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This paper considers resonantly forced spiral density waves in a dense planetary ring that is close to the threshold for viscous overstability. We solved numerically the hydrodynamical equations for a dense thin disk in the vicinity of an inner Lindblad resonance with a perturbing satellite. Our numerical scheme is one-dimensional so that the spiral shape of a density wave is taken into account through a suitable approximation of the advective terms arising from the fluid orbital motion. This paper is a first attempt to model the co-existence of resonantly forced density waves and short-scale free overstable wavetrains as observed in Saturn’s rings, by conducting large-scale hydrodynamical integrations. These integrations reveal that the two wave types undergo complex interactions, not taken into account in existing models for the damping of density waves. In particular we found that, depending on the relative magnitude of both wave types, the presence of viscous overstability can lead to the damping of an unstable density wave and vice versa. The damping of the short-scale viscous overstability by a density wave was investigated further by employing a simplified model of an axisymmetric ring perturbed by a nearby Lindblad resonance. A linear hydrodynamic stability analysis as well as local N-body simulations of this model system were performed and support the results of our large-scale hydrodynamical integrations.
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41

Ratkiewicz, R., D. E. Innes, and J. F. McKenzie. "Characteristics and Riemann invariants for multi-ion plasmas in the presence of Alfvén waves." Journal of Plasma Physics 52, no. 2 (October 1994): 297–307. http://dx.doi.org/10.1017/s0022377800017918.

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In this paper the characteristics for a single- and a bi-ion plasma in the presence of Alfvén waves are given. In the single-ion case, the analysis is extended to the situation where Alfvén waves saturate and dissipatively heat the plasma. When there is no dissipation, there are three sound waves and one entropy wave in the single-ion plasma. Each sound wave is associated with two Riemann invariants relating the changes in density and wave pressure to changes in the flow. In the case when the Alfvén waves saturate and heat the plasma, there are two sound waves and one modified entropy sound wave. Each wave is associated with two Riemann invariants relating changes in density and entropy to changes in the flow. The analysis for the bi-ion plasma is simplified to very sub-Alfvénic flows. In this case the Alfvén waves behave like another plasma component, and both the electric and Alfvén wave forces have the same structure. The system possesses two entropy waves and four sound waves. Each sound wave is associated with two Riemann invariants relating changes in density and flow velocity along the characteristic curves.
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42

Karashima, Akihiro, Norihiro Katayama, and Mitsuyuki Nakao. "Enhancement of Synchronization Between Hippocampal and Amygdala Theta Waves Associated With Pontine Wave Density." Journal of Neurophysiology 103, no. 5 (May 2010): 2318–25. http://dx.doi.org/10.1152/jn.00551.2009.

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Theta waves in the amygdala are known to be synchronized with theta waves in the hippocampus. Synchronization between amygdala and hippocampal theta waves is considered important for neuronal communication between these regions during the memory-retrieval process. These theta waves are also observed during rapid eye movement (REM) sleep. However, few studies have examined the mechanisms and functions of theta waves during REM sleep. This study examined correlations between the dynamics of hippocampal and amygdala theta waves and pontine (P) waves in the subcoeruleus region, which activates many brain areas including the hippocampus and amygdala, during REM sleep in rats. We confirmed that the frequency of hippocampal theta waves increased in association with P wave density, as shown in our previous study. The frequency of amygdala theta waves also increased with in associated with P wave density. In addition, we confirmed synchronization between hippocampal and amygdala theta waves during REM sleep in terms of the cross-correlation function and found that this synchronization was enhanced in association with increased P wave density. We further studied theta wave synchronization associated with P wave density by lesioning the pontine subcoeruleus region. This lesion not only decreased hippocampal and amygdala theta frequency, but also degraded theta wave synchronization. These results indicate that P waves enhance synchronization between regional theta waves. Because hippocampal and amygdala theta waves and P waves are known to be involved in learning and memory processes, these results may help clarify these functions during REM sleep.
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43

Scalapino, D. J., E. Loh, and J. E. Hirsch. "d-wave pairing near a spin-density-wave instability." Physical Review B 34, no. 11 (December 1, 1986): 8190–92. http://dx.doi.org/10.1103/physrevb.34.8190.

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44

Dally, William R., and Robert G. Dean. "CLOSED-FORM SOLUTIONS FOR THE PROBABILITY DENSITY OF WAVE HEIGHT IN THE SURF ZONE." Coastal Engineering Proceedings 1, no. 21 (January 29, 1988): 60. http://dx.doi.org/10.9753/icce.v21.60.

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By invoking the assumption that in the surf zone, random waves behave as a collection of individual regular waves, two closed-form solutions for the probability density function of wave height on planar beaches are derived. The first uses shallow water linear theory for wave shoaling, assumes a uniform incipient condition, and prescribes breaking with a regular wave model that includes both bottom slope and wave steepness effects on the rate of decay. In the second model, the shallow water assumption is removed, and a distribution in wave period (incipient condition) is included. Preliminary results indicate that the models exhibit much of the behavior noted for random wave transformation reported in the literature, including bottom slope and wave steepness effects on the shape of the probability density function.
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45

Wang, W. Z., K. L. Yao, and H. Q. Lin. "The charge density wave and spin density wave in interchain coupled alternate -conjugated organic ferromagnets." Journal of Physics: Condensed Matter 10, no. 6 (February 16, 1998): 1371–79. http://dx.doi.org/10.1088/0953-8984/10/6/019.

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46

Pradhan, B. "Charge Density Wave and Spin Density Wave in Two-Orbital Model for Iron-Based Superconductors." SPIN 08, no. 02 (June 2018): 1850007. http://dx.doi.org/10.1142/s2010324718500078.

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We present a mean-field theoretical model study for the coexistence of the two strongly interacting charge density wave (CDW) and spin density wave (SDW) for iron-based superconductors in the under-doped region before the onset of the superconductivity in the system. The analytic expressions for the temperature dependence of the CDW and SDW order parameters are derived by using Zubarev’s technique of double-time single particle Green’s functions and solved self-consistently. Their interplay is studied by varying both the CDW and SDW coupling constants. Further, the electronic density of states (DOS) for the conduction electrons are studied in the pure CDW and SDW states and coexistence state for the cases, where the CDW transition temperature is greater than the SDW transition temperature and vice versa, which show two gap parameters.
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47

Yu Dong, Yu Dong, Guanglong Wang Guanglong Wang, Haiqiao Ni Haiqiao Ni, Kangming Pei Kangming Pei, Zhongtao Qiao Zhongtao Qiao, Jianhui Chen Jianhui Chen, Fengqi Gao Fengqi Gao, Baochen Li Baochen Li, and and Zhichuan Niu and Zhichuan Niu. "Short-wave infrared detector with double barrier structure and low dark current density." Chinese Optics Letters 14, no. 2 (2016): 022501–22505. http://dx.doi.org/10.3788/col201614.022501.

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48

Yao, Yu, Ruichao Du, Changbo Jiang, Zhengjiang Tang, and Wancheng Yuan. "Experimental Study of Reduction of Solitary Wave Run-Up by Emergent Rigid Vegetation on a Beach." Journal of Earthquake and Tsunami 09, no. 05 (December 2015): 1540003. http://dx.doi.org/10.1142/s1793431115400035.

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Extensive studies have been carried out to study the performance of mangrove forests in wave height reduction. In this study, the reduction of the inundation and run-up of leading tsunami waves by mangrove forests was investigated through a series of laboratory experiments conducted in a long wave tank. The inundation and run-up were measured using a high speed CCD camera. Solitary waves were used to model the leading tsunami waves. Five vegetation models representing three forest densities and two tree distributions were examined on an impermeable sloping beach, and they were compared with the non-vegetated slope in view of wave reflection, transmission, and run-up. Results show that both incident wave height and run-up could be reduced by up to 50% when the vegetation was present on the slope. Dense vegetation reduced the wave transmission because of the increased wave reflection and energy dissipation into turbulence in vegetation. Normalized wave run-up on the beach decreased with the increase of both normalized incident wave height and forest density. Effect of forest density on the wave run-up on the sloping beach was further examined, and an empirical formula with the density incorporated was proposed. The study also highlighted the importance of tree distribution to wave interaction with vegetation on the slope when the forest density was unaltered, and run-up reduction difference between tandem and staggered arrangements of the trees could reach up to 20%.
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49

Steiner, Brian, Erik H. Saenger, and Stefan M. Schmalholz. "Time-reverse imaging with limited S-wave velocity model information." GEOPHYSICS 76, no. 5 (September 2011): MA33—MA40. http://dx.doi.org/10.1190/geo2010-0303.1.

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Time-reverse imaging is a wave propagation algorithm for locating sources. Signals recorded by synchronized receivers are reversed in time and propagated back to the source location by elastic wavefield extrapolation. Elastic wavefield extrapolation requires a P-wave as well as an S-wave velocity model. The velocity models available from standard reflection seismic methods are usually restricted to only P-waves. In this study, we use synthetically produced time signals to investigate the accuracy of seismic source localization by means of time-reverse imaging with the correct P-wave and a perturbed S-wave velocity model. The studies reveal that perturbed S-wave velocity models strongly influence the intensity and position of the focus. Imaging the results with the individual maximum energy density for both body wave types instead of mixed modes allows individual analysis of the two body waves. P-wave energy density images render stable focuses in case of a correct P-wave and incorrect S-wave velocity model. Thus, P-wave energy density seems to be a more suitable imaging condition in case of a high degree of uncertainty in the S-wave velocity model.
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50

Maki, Kazumi, Balázs Dóra, András Ványolos, and Attila Virosztek. "d-Wave density waves in high Tc cuprates and CeCoIn5." Physica C: Superconductivity and its Applications 460-462 (September 2007): 226–29. http://dx.doi.org/10.1016/j.physc.2007.03.014.

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