Relevant bibliographies by topics / Amplitude variation

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

Academic literature on the topic 'Amplitude variation'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Amplitude variation"

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Yu, Gary. "Offset‐amplitude variation and controlled‐amplitude processing." GEOPHYSICS 50, no. 12 (December 1985): 2697–708. http://dx.doi.org/10.1190/1.1441890.

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The partition of plane seismic waves at plane interfaces introduces changes in seismic amplitude which vary with angle of incidence. These amplitude variations are a function of the elastic parameters of rocks on either side of the interface. Controlled‐amplitude processing is designed to obtain the true amplitude information which is geologic in origin. The offset‐amplitude information may be successfully used to predict the fluid type in reservoir sands. Various tests were carried out on a seismic profile from the Gulf Coast. The processing comparison emphasized the effects and pitfalls of trace equalization, coherent noise, offset, and surface‐related problems. Two wells drilled at amplitude anomaly locations confirmed the prediction of hydrocarbons from offset‐amplitude analysis. Furthermore, controlled‐amplitude processing provided clues in evaluating reservoir quality, which was not evident on the conventional relative amplitude data.
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Neidell, Norman S. "Amplitude variation with offset." Leading Edge 5, no. 3 (March 1986): 47–51. http://dx.doi.org/10.1190/1.1439241.

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Li, Jun, H. Jay Zwally, Helen Cornejo, and Donghui Yi. "Seasonal variation of snow-surface elevation in North Greenland as modeled and detected by satellite radar altimetry." Annals of Glaciology 37 (2003): 233–38. http://dx.doi.org/10.3189/172756403781815889.

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AbstractComparison of the distribution of seasonal variations in surface elevation derived from a firn-densification–elevation model with observed variations derived from ERS-1/-2 satellite radar altimetry shows close similarity in the patterns of the amplitude of the variations over the North Greenland ice sheet. The amplitudes of the seasonal variations decrease from west to east and from south to north, determined by the accumulation rate and the surface-temperature distribution pattern. Several methods of estimating the amplitude of the seasonal variation in the observations are compared, including the use of a three-frequency sinusoidal function derived from the modeled seasonal variation that is asymmetric. The resulting correlation coefficient between the observed amplitude, estimated with the three-frequency function, and the modeled amplitude is 0.66 and the slope is 0.7. Residual differences may be caused by interannual variability in accumulation and temperature and other approximations in the model.
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Carey, M. G., S. S. Al-Zaiti, T. M. Kozik, H. Schell-Chaple, and M. M. Pelter. "QRS Amplitude Variation During Monitoring." American Journal of Critical Care 25, no. 1 (December 31, 2015): 97–98. http://dx.doi.org/10.4037/ajcc2016791.

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Szabados, L. "New Ways of Revealing Cepheid Binaries." International Astronomical Union Colloquium 139 (1993): 406–7. http://dx.doi.org/10.1017/s0252921100118068.

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AbstractTwo methods involving the observed amplitudes of radial velocity and UBVR light variations for classical Cepheids have been analysed, both being implicitly known: their principle is trivial but these methods had not yet been used systematically as indicators of duplicity.The slope method is based on the alteration of the wavelength dependence of the light variation amplitude if either a blue or a red companion is added to the light of the Cepheid. The amplitude ratio (AR) method makes use of the fact that the companion reduces the amplitude of the light variation without observable effect on the pulsational radial velocity amplitude. This means that the ratio of these two amplitudes (Arad.vel./AB) has a larger value for binary Cepheids as compared with the single pulsators.Each method has been applied to more than 100 Cepheids, thus allowing to study how the uncontaminated parameters (amplitude ratio and slope) depend on the pulsation period. Binary Cepheids deviate from the regular pattern in these diagrams, and a number of new binaries can be discovered in this way. The effect of duplicity is revealed by both methods independently for VZ CMa, FM Cas, CR Cep, V402 Cyg, VI154 Cyg, V440 Per and DR Vel.
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Deepa, V., G. Ramkumar, M. Antonita, K. K. Kumar, and M. N. Sasi. "Vertical propagation characteristics and seasonal variability of tidal wind oscillations in the MLT region over Trivandrum (8.5° N, 77° E): first results from SKiYMET Meteor Radar." Annales Geophysicae 24, no. 11 (November 21, 2006): 2877–89. http://dx.doi.org/10.5194/angeo-24-2877-2006.

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Abstract. Tidal activity in the Mesospheric Lower Thermosphere (MLT) region over Trivandrum (8.5° N, 77° E) is investigated using the observations from newly installed SKiYMET Meteor Radar. The seasonal variability and vertical propagation characteristics of atmospheric tides in the MLT region are addressed in the present communication. The observations revealed that the diurnal tide is more prominent than the semi/terdiurnal components over this latitude. It is also observed that the amplitudes of meridional components are stronger than that of zonal ones. The amplitude and phase structure shows the vertical propagation of diurnal tides with vertical wavelength of ~25 km. However, the vertical wavelength of the semidiurnal tide showed considerable variations. The vertical propagation characteristics of the terdiurnal tide showed some indications of their generating mechanisms. The observed features of tidal components are compared with Global Scale Wave Model (GSWM02) values and they showed a similar amplitude and phase structure for diurnal tides. Month-to-month variations in the tidal amplitudes have shown significant seasonal variation. The observed seasonal variation is discussed in light of the variation in tidal forcing and dissipation.
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Geiss, E., N. Petersen, and U. Bleil. "Amplitude variation of marine magnetic anomalies." Geologische Rundschau 78, no. 3 (October 1989): 741–52. http://dx.doi.org/10.1007/bf01829319.

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Bier, M., K. S. Kits, and J. G. Borst. "Relation between rise times and amplitudes of GABAergic postsynaptic currents." Journal of Neurophysiology 75, no. 3 (March 1, 1996): 1008–12. http://dx.doi.org/10.1152/jn.1996.75.3.1008.

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1. We recorded rise times and amplitudes of spontaneous GABAergic inhibitory postsynaptic currents (IPSCs) in melanotropes of Xenopus laevis. Average rise times did not vary with amplitude, but the rise times of larger IPSCs were less variable. A simple linear one-step Markov model for channel opening following the binding of a transmitter molecule can quantitatively account for the average rise time and its coefficient of variation as a function of amplitude. Our results indicate that the observed variations in the rise times are not due to variations in transmitter concentrations, but result from stochastic variations in the opening of the receptor channels.
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Rishbeth, H., K. J. F. Sedgemore-Schulthess, and T. Ulich. "Semiannual and annual variations in the height of the ionospheric F2-peak." Annales Geophysicae 18, no. 3 (March 31, 2000): 285–99. http://dx.doi.org/10.1007/s00585-000-0285-6.

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Abstract. Ionosonde data from sixteen stations are used to study the semiannual and annual variations in the height of the ionospheric F2-peak, hmF2. The semiannual variation, which peaks shortly after equinox, has an amplitude of about 8 km at an average level of solar activity (10.7 cm flux = 140 units), both at noon and midnight. The annual variation has an amplitude of about 11 km at northern midlatitudes, peaking in early summer; and is larger at southern stations, where it peaks in late summer. Both annual and semiannual amplitudes increase with increasing solar activity by day, but not at night. The semiannual variation in hmF2 is unrelated to the semiannual variation of the peak electron density NmF2, and is not reproduced by the CTIP and TIME-GCM computational models of the quiet-day thermosphere and ionosphere. The semiannual variation in hmF2 is approximately "isobaric", in that its amplitude corresponds quite well to the semiannual variation in the height of fixed pressure-levels in the thermosphere, as represented by the MSIS empirical model. The annual variation is not "isobaric". The annual mean of hmF2 increases with solar 10.7 cm flux, both by night and by day, on average by about 0.45 km/flux unit, rather smaller than the corresponding increase of height of constant pressure-levels in the MSIS model. The discrepancy may be due to solar-cycle variations of thermospheric winds. Although geomagnetic activity, which affects thermospheric density and temperature and therefore hmF2 also, is greatest at the equinoxes, this seems to account for less than half the semiannual variation of hmF2. The rest may be due to a semiannual variation of tidal and wave energy transmitted to the thermosphere from lower levels in the atmosphere.Key words: Atmospheric composition and structure (thermosphere - composition and chemistry) - Ionosphere (mid-latitude ionosphere)
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Stening, R. J., and C. Jacobi. "Lunar tidal winds in the upper atmosphere over Collm." Annales Geophysicae 18, no. 12 (December 31, 2000): 1645–50. http://dx.doi.org/10.1007/s00585-001-1645-6.

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Abstract. The lunar semidiurnal tide in winds measured at around 90 km altitude has been isolated with amplitudes observed up to 4 m s–1. There is a marked amplitude maximum in October and also a considerable phase variation with season. The average variation of phase with height indicated a vertical wavelength of more than 80 km but this, and other results, needs to be viewed in the light of the considerable averaging required to obtain statistical significance. Large year-to-year variations in both amplitude and phase were also found. Some phase comparisons with the GSWM model gave reasonable agreement but the model amplitudes above a height of 100 km were much larger than those measured. An attempt to make a comparison with the lunar geomagnetic tide did not yield a statistically significant result. Key words: Meteorology and atmospheric dynamics (middle atmosphere dynamics; waves and tides)
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Dissertations / Theses on the topic "Amplitude variation"

1

Wahl, Linda Marie. "Sources of quantal variance in synaptic transmission." Thesis, University of Oxford, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.318451.

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Walia, Rakesh Kumar. "Effect of horizon roughness on lateral continuity and amplitude variation of deeper reflections." Thesis, University of Southampton, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242226.

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Abdulrahman, Hazha, and Aaron Mach. "Does photographic documentation of the position of the recording electrodes decrease motor amplitude variation in electroneurography?" Thesis, Uppsala University, Department of Medical Biochemistry and Microbiology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-106405.

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It is known that there is an intraindividual amplitude variation in motor electroneurography when the same person is examined at different times. This variation affects the evaluation the status of the patient. The aim of this study was to investigate if the intraindividual amplitude variation decreased by photographing the electrode position, that later is used in the follow-up study. Twenty test persons were examined by four laboratory scientists. The nerves that were examined were median, ulnar, peroneal and tibial nerve. At the first examination the laboratory scientists used method guidelines and took photographs of the electrode position. The photographs were then used in the follow-up. The results showed that there was an indication of decreased of the intraindividual amplitude variation when photographic documentation was used instead of method guidelines.

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Butterfield, Andrei. "Characterization of a Utica Shale Reflector Package Using Well Log Data and Amplitude Variation with Offset Analysis." Wright State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=wright1401462908.

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Gough, H. "The latitudinal variation of geomagnetic pulsation amplitude and phase : A model of the magnetosphere and a study of two selected intervals." Thesis, University of York, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.354381.

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Murchek, Jacob T. "Pre-Stack Seismic Inversion and Amplitude Variation with Offset (AVO) Attributes as Hydrocarbon Indicators in Carbonate Rocks: A Case Study from the Illinois Basin." Wright State University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=wright1620214269732212.

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Le, Duff Alain. "Contribution à l'estimation paramétrique de signaux à variation sinusoi͏̈dale de la fréquence instantanée et à amplitude variable : application à l'anémométrie laser Doppler pour l'acoustique." Le Mans, 2003. http://cyberdoc.univ-lemans.fr/theses/2003/2003LEMA1012.pdf.

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L'anémométrie laser à effet Doppler (ALD), dont l'utilisation est très répandue en mécanique des fluides, peut aussi être utilisée pour la mesure de vitesse particulaire acoustique. La nature vectorielle de cette grandeur permet de caractériser les champs à structure complexe ce qui autorise, par exemple, l'étude de phénomènes acoustiques au voisinage de parois vibrantes ou de discontinuités géométriques. L'ALD offre, pour ce type de problème. Le double avantage de présenter une bonne résolution spatiale de la mesure et de ne perttirber que faiblement le champ à explorer. Le Laboratoire d'Acoustique de l'Université du Maine (LAUM) est équipé d'un banc de mesure conçu pour la mesure de vitesse acoustique. Depuis près de huit ans. Les recherches se sont orientées vers la validation expérimentale de cette technique ainsi que vers l'élaboration de méthodes de traitement des signaux propres à extraire la vitesse particulaire dans lin contexte de traitement différé et avec l'hypothèse d'un signal Doppler d'amplittide constante. Cependant, pour que l'ALD soit exploitable efficacement il est indispensable de concevoir un système de mesure. Simple d'utilisation, permettant d'accéder rapidement à la vitesse acoustique et prenant en compte la nature variable de l'amplitude du signal Doppler. L'objectif de cette étude est donc de proposer des méthodes de traitement du signal adaptées à l'estimation de la vitesse particulaire acoustique, dans le cas d'une excitation sinusoi͏̈dale. Et de définir une architecture matérielle et logiciens indispensable à cette mesure. Celle-ci s'opère à partir des composantes en phase et en quadrature du signal Doppler ramené-es en bande de base à l'aide d"un dispositif de démodulation analogique spécialement développé pour cette application. Trois estimateurs sont alors proposés: le premier est basé sur le calcul de la dérivée de la phase du signal Doppler. Sa principale vocation consiste à initialiser une deuxième méthode d'estimation basée sur la recherche du maximum de vraisemblance. Le filtrage de Kalman étendu cmontrent l'influence des paramètres du problème sur la qualité des estimations. Par la suite. Des simulations statistiques de --\,Ionte-Carlo permettent d'évaluer la qualité des trois méthodes. Une estimation sommaire des complexités algorithmiques des estimateurs complète également cette phase dévaluation. Enfin. La validation expérimentale des techniques d'estimation s"articule autour de deux ex- périences Dans un premier temps, la mesure de la vitesse de déplacement sinusoi͏̈dale d'une pointe d'aiguille montée dans un pot vibrant permet de coiifronter les résultats obtenus par ALD à ceux que donne un vibromètre laser. Dans un second temps. La mesure de vitesses particulaires acoustiques rayonnées par un haut-parleur électrodynamique, est proposée. Les valeurs issues de la mesure en champ libre par ALD sont alors coniparées à celles des vitesses de référence obtenues à l'aide de la méthode du doublet microphonique
Laser Doppler Anemometry (LDA), which is widely used in fluid mechanics, can also be used in order to measure acoustic particle velocity. The knowledge of this vector quantity could be especially useful to characterize a complex acoustic field, allowing for example the study of phenomena close to vibrating surfaces or around duct discontinuities. In addition, LDA ensures, for this kind of problem, theoretically non-invasive velocity measurements with an excellent spatial résolution. The Laboratoire d'Acoustique de l'Université du Maine (LAUM) is equipped with a system designed for acoustic velocity measurement. For nearly eight years, research has been directed towards the experimental assessment of this technique and the development of signal processing methods based on post-processing techniques, with the assomption of a constant amplitude Doppler signal. However, in order to design a more integrated set-up, furthermore easy to manipulate, it is essential to design a system providing real-time measurements of acoustic velocity and taking into account the varying amplitude of the Doppler signal. This research work offers signal processing methods adapted to the estimation of acoustic particle velocity, for a sine-wave excitation, and defines hardware and software architectures suited to this measurement. The latter is performed with the help of the in-phase and the quadrature components of the Doppler signal, which is downshifted thanks to an analog quadrature demodulation technique especially designed for this application. Three estimators are then proposed: the first is based on the Doppler phase derivation, and is the starting point of a second method based on maximum likelihood estimation. The extended Kalman filter is the third method explored. Finally, the approximated, though accurate, analytical forms of the Cramer-Rao bounds show the influence of the parameters on the quality of the estimations. Estimator performance is then illustrated by means of statistical Monte-Carlo simulations. An assessment of the complexity of these algorithms also supplements this evaluation. Finally, the assessment of the estimation technique is obtained thanks to two experiments. Firstly, the measurement of the sinusoidal velocity of the displacement of a needle assembled in a vibration exciter allows the comparison of the results obtained by LDA with those obtained with a laser vibrometer. Then, the measurement of the acoustic particle velocity field radiated by a loudspeaker, is proposed. The measurements obtained in free field by LDA are then compared with the reference velocities obtained using a sound intensity probe
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Zeiler, Cleat Philip. "Improving nuclear explosion detection using seismic and geomorphic data sets." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2008. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

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LE, DUFF Alain. "Contribution à l'estimation paramétrique de signaux à variation sinusoïdale de la fréquence instantanée et à amplitude variable : application à l'anémométrie laser à effet Doppler pour l'acoustique." Phd thesis, Université du Maine, 2003. http://tel.archives-ouvertes.fr/tel-00004877.

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L'anémométrie laser à effet Doppler (ALD), dont l'utilisation est très répandue en mécanique des fluides, peut aussi être utilisée pour la mesure de vitesse particulaire acoustique. La nature vectorielle de cette grandeur permet de caractériser les champs à structure complexe ce qui autorise, par exemple, l'étude de phénomènes acoustiques au voisinage de parois vibrantes ou de discontinuités géométriques. L'ALD offre, pour ce type de problème, le double avantage de présenter une bonne résolution spatiale de la mesure et de ne perturber que faiblement le champ à explorer.
Le Laboratoire d'Acoustique de l'Université du Maine est équipé d'un banc de mesure conçu pour la mesure de vitesse acoustique. Depuis près de huit ans, les recherches se sont orientées vers la validation expérimentale de cette technique ainsi que vers l'élaboration de méthodes de traitement des signaux propres à extraire la vitesse particulaire dans un contexte de traitement différé et avec l'hypothèse d'un signal Doppler d'amplitude constante. Cependant, pour que l'ALD soit exploitable efficacement il est indispensable de concevoir un système de mesure, simple d'utilisation, permettant d'accéder rapidement à la vitesse acoustique et prenant en compte la nature variable de l'amplitude du signal Doppler.
L'objectif de cette étude est donc de proposer des méthodes de traitement du signal adaptées à l'estimation de la vitesse particulaire acoustique, dans le cas d'une excitation sinusoïdale, et de définir une architecture matérielle et logicielle indispensable à cette mesure. Celle-ci s'opère à partir des composantes en phase et en quadrature du signal Doppler ramenées en bande de base à l'aide d'un dispositif de démodulation analogique spécialement développé pour cette application. Trois estimateurs sont alors proposés : le premier est basé sur le calcul de la dérivée de la phase du signal Doppler. Sa principale vocation consiste à initialiser une deuxième méthode d'estimation basée sur la recherche du maximum de vraisemblance. Le filtrage de Kalman étendu constitue la troisième méthode explorée. Enfin, les formes analytiques, approchées mais précises, des bornes de Cramer-Rao montrent l'influence des paramètres du problème sur la qualité des estimations. Par la suite, des simulations statistiques de Monte-Carlo permettent d'évaluer la qualité des trois méthodes. Une estimation sommaire des complexités algorithmiques des estimateurs complète également cette phase d'évaluation.
Enfin, la validation expérimentale des techniques d'estimation s'articule autour de deux expériences. Dans un premier temps, la mesure de la vitesse de déplacement sinusoïdale d'une pointe d'aiguille montée dans un pot vibrant permet de confronter les résultats obtenus par ALD à ceux que donne un vibromètre laser. Dans un second temps, la mesure de vitesses particulaires acoustiques rayonnées par un haut-parleur électrodynamique, est proposée. Les valeurs issues de la mesure en champ libre par ALD sont alors comparées à celles des vitesses de référence obtenues à l'aide de la méthode du doublet microphonique.
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Çiftçi, Canan Kamacı Züheyr. "Açılıma bağlı reflektivite analizi /." Isparta : SDÜ Fen Bilimleri Enstitüsü, 2008. http://tez.sdu.edu.tr/Tezler/TF01227.pdf.

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Books on the topic "Amplitude variation"

1

Seismic inverse Q filtering. Malden, MA: Blackwell Pub., 2008.

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1947-, McCormack M. D., Neitzel E. B, and Winterstein D. F, eds. Multicomponent seismology in petroleum exploration. Tulsa, OK: Society of Exploration Geophysicists, 1991.

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Burgos Gil, José I. (José Ignacio), 1962- editor, ed. Feynman amplitudes, periods, and motives: International research conference on periods and motives : a modern perspective on renormalization : July 2-6, 2012, Institute de Ciencias Matematicas, Madris, Spain. Providence, Rhode Island: American Mathematical Society, 2015.

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Simm, Rob, and Mike Bacon. Seismic Amplitude: An Interpreter's Handbook. Cambridge University Press, 2014.

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Allen, James L., and Carolyn P. Peddy. Amplitude Variation With Offset: Gulf Coast Case Studies (Geophysical Development, Vol 4). Society of Exploration Geophysicists, 1993.

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Wassermann, Eric M. Inter- and intra-individual variation in the response to TMS. Edited by Charles M. Epstein, Eric M. Wassermann, and Ulf Ziemann. Oxford University Press, 2012. http://dx.doi.org/10.1093/oxfordhb/9780198568926.013.0026.

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The variable amplitude of motor cortex is a striking aspect of the muscle response to transcranial magnetic stimulation. It is easy to produce large motor-evoked potentials (MEPs) in some healthy subjects, while others' cortico-muscular pathways seem barely excitable, even by the strongest available stimuli. MEP amplitude and other measures also vary widely within individuals over time. The factors of these differences among and within individuals are age, gross anatomy of the individuals, genetic factors, and physiological differences associated with behavioural and other traits such as personality, conditions like migraine. The MEP varies over time within individuals at rest under laboratory conditions. These variations can be short term or long term. Differences among neurologically normal individuals have important implications for research using TMS. These differences open doors to new fields of study to neurophysiologists in the treatment and etiology of brain disease.
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Seismic Amplitude Inversion in Reflection Tomography (Handbook of Geophysical Exploration: Seismic Exploration). Pergamon, 2003.

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Ramsay, James. Curve registration. Edited by Frédéric Ferraty and Yves Romain. Oxford University Press, 2018. http://dx.doi.org/10.1093/oxfordhb/9780199568444.013.9.

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This article deals with curve registration, which refers to methods for aligning prominent features in a set of curves by transforming their abscissa variables. It first illustrates the concepts of amplitude and phase variation schematically and with real data before defining the time-warping functions and their functional inverse. It then describes the decomposition of total mean squared variation into separate amplitude and phase components, along with an R2 measure of the proportion of functional variation due to phase in a sample of curves. It also considers landmark registration, novel ways of defining curve features, continuous registration, and methods based on structured models for amplitude and phase variation combined with more statistically oriented fitting methods such as maximum likelihood or Bayesian estimation. The article concludes with a brief survey of software resources for registration.
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Wang, Yanghua. Seismic Inverse Q Filtering. Wiley & Sons, Incorporated, John, 2009.

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Wang, Bin. Intraseasonal Modulation of the Indian Summer Monsoon. Oxford University Press, 2018. http://dx.doi.org/10.1093/acrefore/9780190228620.013.616.

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The strongest Indian summer monsoon (ISM) on the planet features prolonged clustered spells of wet and dry conditions often lasting for two to three weeks, known as active and break monsoons. The active and break monsoons are attributed to a quasi-periodic intraseasonal oscillation (ISO), which is an extremely important form of the ISM variability bridging weather and climate variation. The ISO over India is part of the ISO in global tropics. The latter is one of the most important meteorological phenomena discovered during the 20th century (Madden & Julian, 1971, 1972). The extreme dry and wet events are regulated by the boreal summer ISO (BSISO). The BSISO over Indian monsoon region consists of northward propagating 30–60 day and westward propagating 10–20 day modes. The “clustering” of synoptic activity was separately modulated by both the 30–60 day and 10–20 day BSISO modes in approximately equal amounts. The clustering is particularly strong when the enhancement effect from both modes acts in concert. The northward propagation of BSISO is primarily originated from the easterly vertical shear (increasing easterly winds with height) of the monsoon flows, which by interacting with the BSISO convective system can generate boundary layer convergence to the north of the convective system that promotes its northward movement. The BSISO-ocean interaction through wind-evaporation feedback and cloud-radiation feedback can also contribute to the northward propagation of BSISO from the equator. The 10–20 day oscillation is primarily produced by convectively coupled Rossby waves modified by the monsoon mean flows. Using coupled general circulation models (GCMs) for ISO prediction is an important advance in subseasonal forecasts. The major modes of ISO over Indian monsoon region are potentially predictable up to 40–45 days as estimated by multiple GCM ensemble hindcast experiments. The current dynamical models’ prediction skills for the large initial amplitude cases are approximately 20–25 days, but the prediction of developing BSISO disturbance is much more difficult than the prediction of the mature BSISO disturbances. This article provides a synthesis of our current knowledge on the observed spatial and temporal structure of the ISO over India and the important physical processes through which the BSISO regulates the ISM active-break cycles and severe weather events. Our present capability and shortcomings in simulating and predicting the monsoon ISO and outstanding issues are also discussed.
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Book chapters on the topic "Amplitude variation"

1

Maurya, S. P., N. P. Singh, and K. H. Singh. "Amplitude Variation with Offset (AVO) Inversion." In Seismic Inversion Methods: A Practical Approach, 107–43. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-45662-7_5.

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Pararó, M., J. Pena, R. Peniche, C. Ibanoglu, Z. Tunca, and S. Evren. "Short-Term Amplitude Variation of FM COM (=HR 4684)." In Nonlinear Phenomena in Stellar Variability, 185–87. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1062-4_27.

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Dróżdż, Artur, and Witold Elsner. "Convection Velocity Variation as a Result of Amplitude Modulation Phenomena." In Springer Proceedings in Physics, 33–38. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-57934-4_5.

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Giron, S. M., S. H. Hwang, T. Song, K. Rhee, and G. Khang. "Perception Caused by Current Amplitude Variation in Electro-Tactile Stimulation." In IFMBE Proceedings, 1190–93. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-23508-5_308.

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Ding, Haiyan, and Datian Ye. "Tracking the Amplitude Variation of Evoked Potential by ICA and WT." In Lecture Notes in Computer Science, 459–64. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-540-28648-6_73.

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Carriou, Vincent, Mariam Al Harrach, Jeremy Laforet, and Sofiane Boudaoud. "Sensitivity Analysis of HD-sEMG Amplitude Descriptors Relative to Grid Parameter Variation." In XIV Mediterranean Conference on Medical and Biological Engineering and Computing 2016, 119–23. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-32703-7_25.

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Kantesaria, Naman, and Ajanta Sachan. "Cyclic Shear Behaviour of High Plasticity Cohesive Soil Subjected to Variation of Frequency and Amplitude." In Challenges and Innovations in Geomechanics, 236–43. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-64514-4_18.

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Roy, Anik, and Santanu Phadikar. "Automatic Segmentation of Spoken Word Signals into Letters Based on Amplitude Variation for Speech to Text Transcription." In Advances in Intelligent Systems and Computing, 621–28. New Delhi: Springer India, 2015. http://dx.doi.org/10.1007/978-81-322-2247-7_63.

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Buchler, J. Robert, Marie-Jo Goupil, and Thierry Serre. "Amplitude Variations in Rotationally Split Multiplets." In Pulsation, Rotation and Mass Loss in Early-Type Stars, 87–88. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-1030-3_26.

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Barrett, P., and E. Schlegel. "Variations of the Soft X-Ray Spin Amplitude in TV Col." In Cataclysmic Variables, 470. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0335-0_126.

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Conference papers on the topic "Amplitude variation"

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Yu, G. J. "Controlled Amplitude Processing and Offset Amplitude Variation." In Offshore Technology Conference. Offshore Technology Conference, 1985. http://dx.doi.org/10.4043/4932-ms.

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Yu, Gary. "Offset amplitude variation and controlled amplitude processing." In 1985 SEG Technical Program Expanded Abstracts. SEG, 1985. http://dx.doi.org/10.1190/1.1892802.

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Pfitzinger, Hartmut R., and Christian Kaernbach. "Amplitude and amplitude variation of emotional speech." In Interspeech 2008. ISCA: ISCA, 2008. http://dx.doi.org/10.21437/interspeech.2008-322.

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Al-Shuhail, A. A., and A. K. Popoola. "Transmission Amplitude Variation with Offset (TAVO)." In Borehole Geophysics Workshop II. Netherlands: EAGE Publications BV, 2013. http://dx.doi.org/10.3997/2214-4609.20142593.

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Sarkar, Debashish, and Bob Baumel. "Velocity analysis in the presence of amplitude variation." In SEG Technical Program Expanded Abstracts 2000. Society of Exploration Geophysicists, 2000. http://dx.doi.org/10.1190/1.1815937.

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Wang, Bo, Yang Liu, Cai Liu, and Dian Wang. "Velocity analysis for amplitude variation using Duffing chaotic system." In SEG Technical Program Expanded Abstracts 2016. Society of Exploration Geophysicists, 2016. http://dx.doi.org/10.1190/segam2016-13853191.1.

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Meneses-Fabian, Cruz, and Uriel Rivera-Ortega. "Three beams phase-shifting interferometry by their amplitude variation." In Eighth Symposium Optics in Industry, edited by Eric Rosas, Norberto Arzate, Ismael Torres, and Juan Sumaya. SPIE, 2011. http://dx.doi.org/10.1117/12.913313.

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Sayidmarie, K. H., and Mohammed N. Saghurchy. "Array beam scanning by variation of elements amplitude-only excitations." In 2011 IEEE 4th International Symposium on Microwave, Antenna, Propagation, and EMC Technologies for Wireless Communications (MAPE). IEEE, 2011. http://dx.doi.org/10.1109/mape.2011.6156133.

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Leier, Mairo, Gert Jervan, and Wilhelm Stork. "Respiration signal extraction from photoplethysmogram using pulse wave amplitude variation." In ICC 2014 - 2014 IEEE International Conference on Communications. IEEE, 2014. http://dx.doi.org/10.1109/icc.2014.6883869.

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Luo, C., X. Li, G. Huang, and H. Dai. "Amplitude Variation with Angle Inversion Based on Propagator Matrix Modelling." In 80th EAGE Conference and Exhibition 2018. Netherlands: EAGE Publications BV, 2018. http://dx.doi.org/10.3997/2214-4609.201800669.

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Reports on the topic "Amplitude variation"

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Freeman, III, Thomas D. Analysis of Background Gamma-Radiation Amplitude Variation at U.S. Ports of Entry. Office of Scientific and Technical Information (OSTI), July 2014. http://dx.doi.org/10.2172/1171450.

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Farrell, B. F. Role of baroclinic wave amplitude and transport variation in climate change. Final report. Office of Scientific and Technical Information (OSTI), April 1998. http://dx.doi.org/10.2172/582181.

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Siekhaus, W. J., and W. McLean. Tables of Exponentially Averaged Temperature 'NT0' to Represent Reactions Bexp[-A/(R{T0+T1*sin[month*2π/12]})] with Sinosoidal Temperature Variations of Amplitude T1 around T0 as Bexp[-A/(R'NT0')]. Office of Scientific and Technical Information (OSTI), November 2014. http://dx.doi.org/10.2172/1178381.

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