Log in

Relevant bibliographies by topics / Amplitude ratios

Contents

Journal articles
Dissertations / Theses
Books
Book chapters
Conference papers
Reports

Academic literature on the topic 'Amplitude ratios'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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 'Amplitude ratios.'

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 "Amplitude ratios"

1

Julian, Bruce R., and G. R. Foulger. "Earthquake mechanisms from linear-programming inversion of seismic-wave amplitude ratios." Bulletin of the Seismological Society of America 86, no. 4 (1996): 972–80. http://dx.doi.org/10.1785/bssa0860040972.

Full text

Abstract:

Abstract The amplitudes of radiated seismic waves contain far more information about earthquake source mechanisms than do first-motion polarities, but amplitudes are severely distorted by the effects of heterogeneity in the Earth. This distortion can be reduced greatly by using the ratios of amplitudes of appropriately chosen seismic phases, rather than simple amplitudes, but existing methods for inverting amplitude ratios are severely nonlinear and require computationally intensive searching methods to ensure that solutions are globally optimal. Searching methods are particularly costly if ge

APA, Harvard, Vancouver, ISO, and other styles

2

Närger, Ulrike, and David A. Balzarini. "Universal critical amplitude ratios inCHF3." Physical Review B 39, no. 13 (1989): 9330–35. http://dx.doi.org/10.1103/physrevb.39.9330.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Goloskokov, S. V. "Amplitude ratios inρ0leptoproductions and GPDs". EPJ Web of Conferences 138 (2017): 08006. http://dx.doi.org/10.1051/epjconf/201713808006.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Abdel-Hady, A. "Amplitude ratios near a Lifshitz point." Canadian Journal of Physics 79, no. 4 (2001): 733–37. http://dx.doi.org/10.1139/p01-021.

Full text

Abstract:

The susceptibility amplitude ratio in the neighborhood of an m-fold Lifshitz point is calculated using the field theoretical techniques of the renormalization group, in one-loop order. A simple expression for the amplitude associated with the helical (ferromagnetic) AH (AF) branches near a Lifshitz point is also calculated. A comparison between our calculations and the available theoretical results is presented. PACS No.: 75.40Cx

APA, Harvard, Vancouver, ISO, and other styles

5

Upton, Paul J. "Amplitude ratios at the extraordinary transition." Physical Review B 45, no. 14 (1992): 8100–8103. http://dx.doi.org/10.1103/physrevb.45.8100.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Rodgers, Arthur J., Thorne Lay, William R. Walter, and Kevin M. Mayeda. "A comparison of regional-phase amplitude ratio measurement techniques." Bulletin of the Seismological Society of America 87, no. 6 (1997): 1613–21. http://dx.doi.org/10.1785/bssa0870061613.

Full text

Abstract:

Abstract We compare several procedures for measuring regional-phase amplitude ratios commonly used in discrimination studies. Amplitude measurements are made on both raw velocity-proportional broadband seismograms and instrument-deconvolved displacement seismograms in the time and frequency domains. Pn/Lg and Pg/Lg ratios are measured on vertical-component waveforms for regional earthquakes observed at the Global Seismic Network (GSN) station ABKT (Alibek, Turkmenistan). Time-domain amplitude measurements are made on narrow-band filtered wave-forms using signal energy measures given by the abs

APA, Harvard, Vancouver, ISO, and other styles

7

Yan, Yan, Wen Quan Wang, Jian Rong Yang, and Li Xiang Zhang. "Effects of Initial Axial Stress on Nonlinear Vibration of Double-Walled Carbon Nanotubes Under Temperature Field." Advanced Materials Research 261-263 (May 2011): 842–47. http://dx.doi.org/10.4028/www.scientific.net/amr.261-263.842.

Full text

Abstract:

The paper studies the nonlinear vibrating mechanical behaviors of double-walled carbon nanotubes (DWCNTs) with the initial axial stress under the temperature field. The DWCNTs are modeled as double elastic shells coupled together through vdW interaction between inner and outer nanotubes. Based on the model, the relation between the amplitudes and the frequencies of the tubes is achieved. The results show that the initial axial stress could crucially affect the topological forms of the amplitude-frequency curve, whereas it is insensitive to the amplitude ratios in DWCNTs. Meanwhile, it is also

APA, Harvard, Vancouver, ISO, and other styles

8

Bogle, Jamie M., David A. Zapala, Robin Criter, and Robert Burkard. "The Effect of Muscle Contraction Level on the Cervical Vestibular Evoked Myogenic Potential (cVEMP): Usefulness of Amplitude Normalization." Journal of the American Academy of Audiology 24, no. 02 (2013): 077–88. http://dx.doi.org/10.3766/jaaa.24.2.2.

Full text

Abstract:

Background: The cervical vestibular evoked myogenic potential (cVEMP) is a reflexive change in sternocleidomastoid (SCM) muscle contraction activity thought to be mediated by a saccular vestibulo-collic reflex. CVEMP amplitude varies with the state of the afferent (vestibular) limb of the vestibulo-collic reflex pathway, as well as with the level of SCM muscle contraction. It follows that in order for cVEMP amplitude to reflect the status of the afferent portion of the reflex pathway, muscle contraction level must be controlled. Historically, this has been accomplished by volitionally controll

APA, Harvard, Vancouver, ISO, and other styles

9

Izmailian, N. Sh, and R. Kenna. "Universal amplitude ratios for constrained critical systems." Journal of Statistical Mechanics: Theory and Experiment 2014, no. 7 (2014): P07011. http://dx.doi.org/10.1088/1742-5468/2014/7/p07011.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Jechumtálová, Zuzana, and Jan Šílený. "Amplitude ratios for complete moment tensor retrieval." Geophysical Research Letters 32, no. 22 (2005): n/a. http://dx.doi.org/10.1029/2005gl023967.

Full text

APA, Harvard, Vancouver, ISO, and other styles

More sources

Dissertations / Theses on the topic "Amplitude ratios"

1

Linkimer, Lepolt. "Discrimination between earthquakes and chemical explosions in Eastern Russia using amplitude ratios obtained from analog records." Diss., Connect to online resource - MSU authorized users, 2006.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

2

Bennett, Damon Dmitry. "Quality assurance for in VIVO MR spectroscopy and the effects of a gadolinium contrast agent on metabolite peak amplitude ratios." Thesis, Queensland University of Technology, 2005. https://eprints.qut.edu.au/16163/1/Damon_Bennett_Thesis.pdf.

Full text

Abstract:

Magnetic Resonance Spectroscopy (MRS) for the evaluation of in vivo cerebral metabolite ratios is a relatively new radiological modality, which permits the detection and evaluation of specific metabolites within the human body. As with all imaging modalities, the accuracy of the equipment to perform its given task is paramount and the effect of introduction of elements and/or contrast agents to a study, must be understood before a diagnosis or prognosis can be made with any degree of certainty. The following chapters describe the development and testing of a phantom, the development and

APA, Harvard, Vancouver, ISO, and other styles

3

Bennett, Damon Dmitry. "Quality Assurance for in VIVO MR Spectroscopy and the Effects of a Gadolinium contrast Agent on Metabolite Peak Amplitude Ratios." Queensland University of Technology, 2005. http://eprints.qut.edu.au/16163/.

Full text

Abstract:

Magnetic Resonance Spectroscopy (MRS) for the evaluation of in vivo cerebral metabolite ratios is a relatively new radiological modality, which permits the detection and evaluation of specific metabolites within the human body. As with all imaging modalities, the accuracy of the equipment to perform its given task is paramount and the effect of introduction of elements and/or contrast agents to a study, must be understood before a diagnosis or prognosis can be made with any degree of certainty. The following chapters describe the development and testing of a phantom, the development and tes

APA, Harvard, Vancouver, ISO, and other styles

4

Lukáš, Jan. "Analýza vlivu tlumení na velikost odezvy při dynamickém buzení světlometu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-418211.

Full text

Abstract:

The aim of the submitted diploma thesis is the magnitude determination of the headlamp response to the dynamic excitation. Currently it is necessary to measure this response, because it is one of the assessed criteria of quality of the headlamp. When comparing results of the experimental measurement and the computational modelling, a good consensus of resonant frequencies is observed, but there are significant differences in acceleration amplitudes. The cause of this is the variable damping value. The theoretical part of the thesis deals with polymeric materials, basics of oscillation and damp

APA, Harvard, Vancouver, ISO, and other styles

5

Rodriguez, Ana A. Paniagua. "Sampling Frequencies Ratio Estimation and Symbol Timing Recovery for Baseband Binary Pulse Amplitude Modulation." DigitalCommons@USU, 2008. https://digitalcommons.usu.edu/etd/267.

Full text

Abstract:

The original intent of this pro ject was to perform real time digital communications between a personal computer (PC) as the transmitter and a digital signal processor (DSP) as the receiver using the audio band analog channel. Although transmitter and receiver were both designed with baseband binary Pulse Amplitude Modulation (PAM), a low data rate and a sampling rate of 8 kilohertz, it was not possible to achieve communication between the two with traditional synchronization algorithms because of large diﬀerences in sampling clock frequencies. This thesis explores the theory and results of im

APA, Harvard, Vancouver, ISO, and other styles

6

Chong, Chan Vee 1975. "Quadrature amplitude modulated codes with low peak-to-mean envelope power ratio for orthogonal frequency division multiplexing applications." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/16765.

Full text

Abstract:

Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2001.<br>Includes bibliographical references (p. 83).<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Orthogonal Frequency Division Multiplexing (OFDM) has been adopted as the modulation technique for many of the next generation wireless broadband multimedia communications systems, for example, Digital Audio Broadcasting (DAB), terrestrial Digital Video Broadcasting (DVB), and the wir

APA, Harvard, Vancouver, ISO, and other styles

7

Rosa, Gabriela Cauduro da. "Análise da amplitude de abertura bucal e seu enquadramento em tabelas de quantificação do dano odontológico." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/23/23153/tde-04042018-110327/.

Full text

Abstract:

Introdução: A região da face corresponde a parte do corpo mais atingida em casos de traumas. Isso ocorre por ser uma área sem proteção e de localização favorável. Traumas nessa região tem como principais causas acidente de trânsito, quedas ou agressões. A consequência mais prevalente é a fratura na região mandibular. Em decorrência disso, é possível perceber diversos prejuízos, dentre eles a limitação na abertura bucal. No entanto, para que seja definido um dano é necessário que se conheça o padrão de normalidade. O Código Civil brasileiro aponta que todo o dano causado por ato ilícito deve se

APA, Harvard, Vancouver, ISO, and other styles

8

Ferullo, Marcello. "La valutazione della via motoria corticobulbare nella Sclerosi Laterale Amiotrofica: uno studio mediante Potenziali Evocati Motori da muscolo Trapezio capo superiore (metodo diretto)." Doctoral thesis, Università degli studi di Padova, 2013. http://hdl.handle.net/11577/3423415.

Full text

Abstract:

Neurophysiology currently occupies a leading role in the diagnosis and monitoring of patients affected by Amyotrophic Lateral Sclerosis (ALS). Electromyography (EMG) is very useful to determine the involvement of the lower motor neuron, while Transcranial Magnetic Stimulation (TMS) is the most appropriate technique for studying the upper motor neuron. It is notoriously difficult to evaluate the bulbar district to examine the lower motor neuron and the upper motor neuron. Here report a series of 55 patients affected by various clinical subtypes of ALS examined by MEP derived from the upp

APA, Harvard, Vancouver, ISO, and other styles

9

Camarda, Martina. "Neural spikes classification in multichannel recordings." Doctoral thesis, Università degli studi di Padova, 2009. http://hdl.handle.net/11577/3426490.

Full text

Abstract:

In order to study the neural behavior, scientists employ multichannel probes where each electrode records a mixture of spike trains from surrounding neurons. A first necessary step is the individuation and the separation of signal from different sources, associating each detected spike to the neuron of origin. Many spike sorting algorithms based on different principles have been developed for this purpose, but there is still no consensus on which is the best method. This thesis addresses the issue of impulsive signal classification in the Neurophysiological framework presenting a novel sp

APA, Harvard, Vancouver, ISO, and other styles

10

Bulusu, Sri Satish Krishna Chaitanya. "Performance Analysis and PAPR Reduction Techniques for Filter-Bank based Multi-Carrier Systems with Non-Linear Power Amplifiers." Thesis, Paris, CNAM, 2016. http://www.theses.fr/2016CNAM1042/document.

Full text

Abstract:

Cette thèse a été effectuée dans le cadre du projet européen FP7 EMPHATIC (Enhanced Multicarrier Techniques for Professional Ad-Hoc and Cell-Based Communications). Plusieurs universités européennes et deux partenaires industriels: THALES Communications Security et CASSIDIAN ont participé à ce projet. L'objectif de ce projet est de développer, d'évaluer et de démontrer les apports des techniques multi-porteuses avancées, permettant une meilleure utilisation des bandes de fréquences radio existantes en fournissant des services de données à large bande, en coexistence avec les services traditionn

APA, Harvard, Vancouver, ISO, and other styles

More sources

Books on the topic "Amplitude ratios"

1

Center, NASA Glenn Research, ed. Acousto-ultrasonics to assess material and structural properties. National Aeronautics and Space Administration, Glenn Research Center, 2002.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

2

Center, NASA Glenn Research, ed. Acousto-ultrasonics to assess material and structural properties. National Aeronautics and Space Administration, Glenn Research Center, 2002.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

3

Center, NASA Glenn Research, ed. Acousto-ultrasonics to assess material and structural properties. National Aeronautics and Space Administration, Glenn Research Center, 2002.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

4

Linkimer, Lepolt. Earthquake or Explosion - Seismic Signal Identification in Eastern Russian using Amplitude Phase Ratios Obtained From Analog Records. VDM Verlag Dr. Mueller e.K., 2007.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

5

Extended high EEG amplitude NREM sleep deprivation in rats: Electrophysiology, physiology, and behavior. 1988.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

6

Kachelriess, Michael. Scattering processes. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198802877.003.0009.

Full text

Abstract:

The unitarity of the S-matrix is used to derive the optical theorem. The connection between Green functions and scattering amplitudes given by the LSZ reduction formula is derived. The trace and the helicity method are developed and applied to the calculation of QED processes. The emission of soft photons and gravitons is discussed. In an appendix, the connection between S-matrix elements, Feynman amplitudes and decay rates or cross-sections is derived.

APA, Harvard, Vancouver, ISO, and other styles

7

Acousto-ultrasonics to assess material and structural properties. National Aeronautics and Space Administration, Glenn Research Center, 2002.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Amplitude ratios"

1

Koch, Karl, and Donat Fäh. "Identification of Earthquakes and Explosions Using Amplitude Ratios: The Vogtland Area Revisited." In Monitoring the Comprehensive Nuclear-Test-Ban Treaty: Seismic Event Discrimination and Identification. Birkhäuser Basel, 2002. http://dx.doi.org/10.1007/978-3-0348-8169-2_8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Kan, Jinyu, Lizheng Wang, Jialun Liu, Xuming Wang, and Bing Han. "Numerical Investigation of an Inland 64 TEU Container Vessel in Restricted Waters." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-6138-0_45.

Full text

Abstract:

AbstractCompared with sea-going ships, inland vessels mostly sail in restricted waters, which may cause resistance and ship motions to change greatly. To ensure the safety of navigation, it is of great importance to study the hydrodynamic performance of inland vessels navigating in restricted waters. A 64 Twenty-feet Equivalent Unit (TEU) container vessel is numerically simulated at different speeds and water depth draft ratios (water depth/draft = 2, 2.5, 3, 4, 5, 16). The numerical methods are firstly verified and then applied to systematic simulations. The resistance components, ship motion

APA, Harvard, Vancouver, ISO, and other styles

3

Jenkins, Richard D., and Thomas J. Sereno. "Calibration of Regional S/P Amplitude-ratio Discriminants." In Monitoring the Comprehensive Nuclear-Test-Ban Treaty: Regional Wave Propagation and Crustal Structure. Birkhäuser Basel, 2001. http://dx.doi.org/10.1007/978-3-0348-8262-0_8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Chernoyarov, Oleg, Alexey Glushkov, Vladimir Litvinenko, Alexandra Salnikova, and Kaung Myat San. "Statistical Characteristics of the Adjacent Information Signals Amplitude Ratio." In Inventive Systems and Control. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1624-5_62.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

van Nijnatten, Fred, Odile Bonnefous, Hernan G. Morales, et al. "Mean Aneurysm Flow Amplitude Ratio Comparison between DSA and CFD." In Lecture Notes in Computer Science. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-24571-3_58.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Wu, Jin, Heng Wen, Xiangyang Shi, and Ling Yang. "Calculation of Phase Difference and Amplitude Ratio Based on ADRV9009." In Advances in Natural Computation, Fuzzy Systems and Knowledge Discovery. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-20738-9_142.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Bretthorst, G. Larry. "Estimating the Ratio of Two Amplitudes in Nuclear Magnetic Resonance Data." In Maximum Entropy and Bayesian Methods. Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-017-2219-3_4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Uchida, Kazunori, Keisuke Shigetomi, Masafumi Takematsu, and Junich Honda. "An Estimation Method for Amplitude Modification Factor Using Floor Area Ratio in Urban Areas." In Lecture Notes in Electrical Engineering. Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-6996-0_11.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Tarata, M. T. "Monitoring Neuromuscular Fatigue through the Area/Amplitude Ratio Computed on the SEMG and MMG." In IFMBE Proceedings. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-04292-8_47.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Chernoyarov, Oleg, Leila Golpaiegany, Vladimir Litvinenko, Yuliya Litvinenko, and Boris Tishukov. "The Probabilistic Characteristics of the Logarithmic Ratio of APSK Signal Adjacent Symbol Amplitudes." In Lecture Notes in Networks and Systems. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-70285-3_40.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Amplitude ratios"

1

Venkatraman, Kartik, Chris Bliamis, Pedro Carrasco Larana, and Anouk van Rooij. "Influence of Chord-to-Radius Ratio and Number of Blades on Cyclorotor Hover Aerodynamic and Aeroacoustic Performance." In Vertical Flight Society 81st Annual Forum and Technology Display. The Vertical Flight Society, 2025. https://doi.org/10.4050/f-0081-2025-294.

Full text

Abstract:

This study investigates the effects of chord-to-radius ratio (c/R) and blade count on the aerodynamic and aeroacoustic performance of cyclorotors through experimental testing and a low-fidelity streamtube model. Cyclorotors with c/R ratios between 0.3 to 0.75 and blade counts ranging from 5 to 9 were tested across pitch amplitudes up to 51°. For a 5-bladed configuration, the pitch amplitude that maximizes the force-to-power coefficient (CF/CP) increases with c/R from approximately 32° at low c/R to around 51° at high c/R. However, the peak attainable CF/CP decreases with increasing c/R, indica

APA, Harvard, Vancouver, ISO, and other styles

2

Kellen, Adam, and Moble Benedict. "Effect of Rotor Geometry on UAV-Scale Cycloidal Rotor Hover Performance." In Vertical Flight Society 74th Annual Forum & Technology Display. The Vertical Flight Society, 2018. http://dx.doi.org/10.4050/f-0074-2018-12682.

Full text

Abstract:

This paper focuses on systematic time-averaged thrust and power measurements to characterize the effect of rotor geometry on the performance of a cycloidal rotor operating at Reynolds numbers between 100,000 and 300,000. A cycloidal rotor is a revolutionary horizontal-axis propulsion device that has proven to benefit from increased maneuverability and aerodynamic efficiency at micro air vehicle (MAV) scales. The current study aims to investigate cycloidal rotor performance at significantly larger UAV-scales. Towards this, experiments were conducted for a range of rotational speeds across diffe

APA, Harvard, Vancouver, ISO, and other styles

3

Plumtree, Alan, Gordon Ping Gu, Jian Li, Pei Liu, and Renata Zavadil. "Environmental Cracking of X-60 Pipeline Steel." In CORROSION 2010. NACE International, 2010. https://doi.org/10.5006/c2010-10299.

Full text

Abstract:

Abstract Environmentally assisted crack (EAC) growth mechanisms affecting the external surface of API X-60 pipeline steel has been investigated. Low frequency cyclic tests at 4.63x10−4 Hz were conducted in simulated groundwater (NS4 solution) under near neutral (pH ≈7) conditions, similar to those for buried natural gas pipelines. The crack morphology and amount of growth were determined for two stress ratios, R (minimum/maximum stress) 0.5 and 0, at Kmax=25.5 MPa√m under both constant and variable amplitude loading conditions. Examination of EAC was carried out using optical, scanning electro

APA, Harvard, Vancouver, ISO, and other styles

4

Chen, Ting, Junseob Shin, and Lianjie Huang. "Ultrasound transmission attenuation tomography using energy-scaled amplitude ratios." In SPIE Medical Imaging, edited by Neb Duric and Brecht Heyde. SPIE, 2016. http://dx.doi.org/10.1117/12.2216412.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Hwang, Jin-Ha, Yun-Jae Kim, and Jin-Weon Kim. "Energy-Based Very Low Cycle Fatigue Crack Growth Simulation for Seismic Application." In ASME 2022 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/pvp2022-84686.

Full text

Abstract:

Abstract In the previous studies, the energy-based damage model was developed by simulating cracked pipe fracture behaviour under seismic loading. The multi-axial fracture strain energy density, the parameter of energy-based damage model, was determined by standard tensile test data and monotonic cracked pipe test data. Very low cycle fatigue crack growth was simulated by applying the multi-axial fracture strain energy density under monotonic loading. When the previous energy-based damage model was applied to simulate cracked pipe fracture test under seismic loading, the simulated results were

APA, Harvard, Vancouver, ISO, and other styles

6

Manaenkov, Sergey. "Direct extraction of helicity amplitude ratios on exclusive rho^0 electroproduction." In XVIII International Workshop on Deep-Inelastic Scattering and Related Subjects. Sissa Medialab, 2010. http://dx.doi.org/10.22323/1.106.0079.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Baranyi, László. "Simulation of Low-Reynolds Number Flow Around a Circular Cylinder Following a Slender Elliptical Path." In ASME 2013 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/pvp2013-97888.

Full text

Abstract:

Two-dimensional flow around a circular cylinder forced to follow an elliptical path at low Reynolds numbers is investigated numerically using a thoroughly tested in-house code based on the finite difference method. Time-mean (TM) and rms values of lift, drag and base pressure coefficients are investigated within the lock-in region against the transverse oscillation amplitude for Reynolds number Re = 150 at frequency ratios of 0.8, 0.9 and 1.0 while the ratio of in-line and transverse cylinder oscillation amplitudes is kept at six different values yielding slender elliptical cylinder paths. The

APA, Harvard, Vancouver, ISO, and other styles

8

Motz, F. "Automated Determination of Polarity and Amplitude Ratios for Estimation of Fault Plane Solutions." In 76th EAGE Conference and Exhibition 2014. EAGE Publications BV, 2014. http://dx.doi.org/10.3997/2214-4609.20141319.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Poliannikov, Oleg, Michael Fehler, and William Rodi. "Quantifying the uncertainty in fault plane solutions inferred from S/P amplitude ratios." In SEG Technical Program Expanded Abstracts 2016. Society of Exploration Geophysicists, 2016. http://dx.doi.org/10.1190/segam2016-13875371.1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Wang, Xiaogui, Zengliang Gao, Tianwen Zhao, Fei Ding, and Yanyao Jiang. "An Experimental Investigation of the Fatigue Crack Growth Behavior of a Pressure Vessel Material." In ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/pvp2006-icpvt-11-93471.

Full text

Abstract:

An experimental investigation was conducted on 16MnR, a pressure vessel material widely used in China. Standard compact specimens were subjected to several different R-ratios (the ratio of the minimum load over the maximum load in a loading cycle) and loading amplitudes. Three different notch sizes ranging from very sharp notch to blunt notch were used. In addition to constant amplitude load, experiments were conducted with overloads being applied at different crack lengths. Two-step high-low sequence loading experiments were conducted to study the influence of the loading sequence. The experi

APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Amplitude ratios"

1

Sancar. L51481 AE Monitoring by Experimental and Theoretical Evaluation of Wave Propagation. Pipeline Research Council International, Inc. (PRCI), 1985. http://dx.doi.org/10.55274/r0010495.

Full text

Abstract:

A detailed analytical model of a buried pipeline was derived and numerically exercised to evaluate frequency spectra, group velocities, amplitude ratios, axial power flow parameters and soil damping coefficients to determine parameters regarding optimum AE inspection. The analytical and experimental results of this program are described in this report.

APA, Harvard, Vancouver, ISO, and other styles

2

Baumgardt, Douglas, Zoltan Der, Angelina Freeman, and Meghan Keohane. Investigation of Factors Affecting the Transportability of the P/S Amplitude Ratio Discriminant. Defense Technical Information Center, 2006. http://dx.doi.org/10.21236/ada454964.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Rahman, Shahedur, Rodrigo Salgado, Monica Prezzi, and Peter J. Becker. Improvement of Stiffness and Strength of Backfill Soils Through Optimization of Compaction Procedures and Specifications. Purdue University, 2020. http://dx.doi.org/10.5703/1288284317134.

Full text

Abstract:

Vibration compaction is the most effective way of compacting coarse-grained materials. The effects of vibration frequency and amplitude on the compaction density of different backfill materials commonly used by INDOT (No. 4 natural sand, No. 24 stone sand, and No. 5, No. 8, No. 43 aggregates) were studied in this research. The test materials were characterized based on the particle sizes and morphology parameters using digital image analysis technique. Small-scale laboratory compaction tests were carried out with variable frequency and amplitude of vibrations using vibratory hammer and vibrato

APA, Harvard, Vancouver, ISO, and other styles

4

Aubert, B. Measurement of the Ratio of Decay Amplitudes for B0bar -> J/psi K*0 and B0 -> J/psi K*0. Office of Scientific and Technical Information (OSTI), 2004. http://dx.doi.org/10.2172/826853.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Vecherin, Sergey, Stephen Ketcham, Aaron Meyer, Kyle Dunn, Jacob Desmond, and Michael Parker. Short-range near-surface seismic ensemble predictions and uncertainty quantification for layered medium. Engineer Research and Development Center (U.S.), 2022. http://dx.doi.org/10.21079/11681/45300.

Full text

Abstract:

To make a prediction for seismic signal propagation, one needs to specify physical properties and subsurface ground structure of the site. This information is frequently unknown or estimated with significant uncertainty. This paper describes a methodology for probabilistic seismic ensemble prediction for vertically stratified soils and short ranges with no in situ site characterization. Instead of specifying viscoelastic site properties, the methodology operates with probability distribution functions of these properties taking into account analytical and empirical relationships among viscoela

APA, Harvard, Vancouver, ISO, and other styles

6

George and Hawley. PR-015-12600-R01 Ability of Ultrasonic Meters to Measure Accurately in Compressor-Induced Pulsating Flows. Pipeline Research Council International, Inc. (PRCI), 2013. http://dx.doi.org/10.55274/r0010808.

Full text

Abstract:

Transmission and storage operations frequently move natural gas using reciprocating compressors that may generate flow pulsations. Most measurement systems cannot accurately measure the flow rate of a pulsating gas stream, and the resulting errors can cause inaccurate gas volumes and accounting imbalances. Recent advances in ultrasonic meters may provide the ability to function without measurement error in pulsating gas streams. Tests were performed to examine the relationship between ultrasonic meter transducer sampling rates, the frequency and amplitude of pulsations from reciprocating compr

APA, Harvard, Vancouver, ISO, and other styles

7

Wilson, D., Steven Peckham, Max Krackow, Sora Haley, Sophia Bragdon, and Jay Clausen. Discriminating buried munitions based on physical models for their thermal response. Engineer Research and Development Center (U.S.), 2025. https://doi.org/10.21079/11681/49749.

Full text

Abstract:

Munitions and other objects buried near the Earth’s surface can often be recognized in infrared imagery because their thermal and radiative properties differ from the surrounding undisturbed soil. However, the evolution of the thermal signature over time is subject to many complex interacting processes, including incident solar radiation, heat conduction in the ground, longwave radiation from the surface, and sensible and latent heat exchanges with the atmosphere. This complexity makes development of robust classification algorithms particularly challenging. Machine-learning algorithms, althou

APA, Harvard, Vancouver, ISO, and other styles

8

Krafft, Douglas, Rachel Bain, Jack Cadigan, and Richard Styles. A review of tidal embayment shoaling mechanisms in the context of future wetland placement. Engineer Research and Development Center (U.S.), 2022. http://dx.doi.org/10.21079/11681/46143.

Full text

Abstract:

Wetland construction in tidally influenced embayments is a strategy for beneficial use of sediment dredged from nearby navigation channels. These projects have the potential to alter basin morphology, tidal hydrodynamics, and shoaling trends. This special report provides a broad review of the literature related to engineering-induced changes in tidal range, salinity, tidal prism, tidal asymmetry, and other known causes of shoaling. Each potential shoaling mechanism is then evaluated in the context of wetland placement to provide a foundation for future beneficial use research. Based on a compi

APA, Harvard, Vancouver, ISO, and other styles

9

George, Darin, and Christopher Grant. PR-015-15601-R01 Pulsation Effects on Ultrasonic Meters Phase II. Pipeline Research Council International, Inc. (PRCI), 2016. http://dx.doi.org/10.55274/r0010905.

Full text

Abstract:

Transmission and storage operations frequently move natural gas using reciprocating compressors that may generate flow pulsations. Most measurement systems cannot accurately measure the flow rate of a pulsating gas stream, and the resulting errors can cause inaccurate gas volumes and accounting imbalances. A previous PRCI research project tested whether recent advances in ultrasonic meters may allow them to function without measurement error in pulsating flows. This project expanded on the previous work and tested similar ultrasonic meters to look for relationships between ultrasonic meter tra

APA, Harvard, Vancouver, ISO, and other styles

10

Koch, Beavers, and Berry. L51491 Effect of Temperature on Stress-Corrosion Cracking of Pre-Cracked Line-Pipe Steel. Pipeline Research Council International, Inc. (PRCI), 1985. http://dx.doi.org/10.55274/r0010078.

Full text

Abstract:

Research conducted in the Stress-Corrosion-Cracking Phase of the NG-18 program has demonstrated that a number of factors influence the rate of stress-corrosion cracking. These factors are the susceptibility of the steel, the stress level, and loading amplitude, the chemical environment in contact with the steel surface, the electrochemical potential established on the steel surface, and the temperature of the steel/environment system. The temperature, as was pointed out by Fessler et al., has an effect on crack growth rate, the width of the potential range where stress-corrosion cracking occur

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!