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Articles de revues sur le sujet « Kinematic source parameters »

Auteur : Grafiati
Publié le 10 mars 2023
Mis à jour le 31 juillet 2025

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1

Corradini, M., I. W. McBrearty, D. T. Trugman, C. Satriano, P. A. Johnson, and P. Bernard. "Investigating the influence of earthquake source complexity on back-projection images using convolutional neural networks." Geophysical Journal International 229, no. 3 (2022): 1824–39. http://dx.doi.org/10.1093/gji/ggac026.

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SUMMARY The retrieval of earthquake finite-fault kinematic parameters after the occurrence of an earthquake is a crucial task in observational seismology. Routinely used source inversion techniques are challenged by limited data coverage and computational effort, and are subject to a variety of assumptions and constraints that restrict the range of possible solutions. Back-projection (BP) imaging techniques do not need prior knowledge of the rupture extent and propagation, and can track the high-frequency (HF) radiation emitted during the rupture process. While classic source inversion methods
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2

Fayjaloun, R., M. Causse, C. Cornou, C. Voisin, and S. G. Song. "Sensitivity of High-Frequency Ground Motion to Kinematic Source Parameters." Pure and Applied Geophysics 177, no. 5 (2019): 1947–67. http://dx.doi.org/10.1007/s00024-019-02195-3.

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Farah, Edris, and Shao Gang Liu. "3D Modeling and Closed-Form Inverse Kinematics Solution for 6dof Surgical Robot." Applied Mechanics and Materials 455 (November 2013): 533–38. http://dx.doi.org/10.4028/www.scientific.net/amm.455.533.

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Since robots began to inter the medical fields, more research efforts and more attention have been given to this kind of robots. In this paper six degrees of freedom surgical robot was studied. The Denavit-Hartenberg parameters of the robot have been computed and 3D model has been built by using open source robotics toolbox. The paper also discussed a closed form solution for the inverse kinematics problem by using inverse kinematic decoupling method.
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Schmedes, J., Ralph J. Archuleta, and Daniel Lavallée. "A kinematic rupture model generator incorporating spatial interdependency of earthquake source parameters." Geophysical Journal International 192, no. 3 (2012): 1116–31. http://dx.doi.org/10.1093/gji/ggs021.

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Causse, M., L. A. Dalguer, and P. M. Mai. "Variability of dynamic source parameters inferred from kinematic models of past earthquakes." Geophysical Journal International 196, no. 3 (2013): 1754–69. http://dx.doi.org/10.1093/gji/ggt478.

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Rooker, Tim, Graeme Potts, Keith Worden, Nikolaos Dervilis, and Jon Stammers. "Comparing approaches for multi-axis kinematic positioning in machine tools." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 235, no. 10 (2021): 1698–711. http://dx.doi.org/10.1177/09544054211019668.

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Maintaining minimal levels of geometric error in the finished workpiece is of increasing importance in the modern production environment; there is considerable research on the identification, verification and calibration of machine tool kinematic error, and the development of Postprocessor implementations to generate NC-code optimised for machining accuracy. The choice of multi-axis positioning function at the controller, however, is an often-overlooked potential source of kinematic error which can be responsible for costly mistakes in the production environment. This paper presents an investi
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Grunwald, Mateusz. "Photon-photon correlations in Ag+Ag collisions at √SNN = 2.55 GeV." EPJ Web of Conferences 291 (2024): 04002. http://dx.doi.org/10.1051/epjconf/202429104002.

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Abstract. Photons, as penetrative probes, can deliver information about early stages of heavy-ion collisions, in contrast to hadrons, whose kinematics are determined after the freeze-out era. Given that, they provide access to quantities inaccessible for many other particle species. However, due to technical challenges of photon detection and dominance of photons from particle decays, exploiting their properties requires significant effort. Femtoscopy, a technique used to investigate the space-time characteristics of the source area, is sensitive to the emission sequence of studied particles.
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Cardona, Manuel, Cecilia E. García Cena, Fernando Serrano, and Roque Saltaren. "ALICE: Conceptual Development of a Lower Limb Exoskeleton Robot Driven by an On-Board Musculoskeletal Simulator." Sensors 20, no. 3 (2020): 789. http://dx.doi.org/10.3390/s20030789.

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Objective: In this article, we present the conceptual development of a robotics platform, called ALICE (Assistive Lower Limb Controlled Exoskeleton), for kinetic and kinematic gait characterization. The ALICE platform includes a robotics wearable exoskeleton and an on-board muscle driven simulator to estimate the user’s kinetic parameters. Background: Even when the kinematics patterns of the human gait are well studied and reported in the literature, there exists a considerable intra-subject variability in the kinetics of the movements. ALICE aims to be an advanced mechanical sensor that allow
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Jordan, Christopher E. "Scale effects in the kinematics and dynamics of swimming leeches." Canadian Journal of Zoology 76, no. 10 (1998): 1869–77. http://dx.doi.org/10.1139/z98-131.

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Slender-bodied organisms swimming with whole-body undulations exhibit what appears to be a high degree of kinematic parameter conservation, which is independent of body size. However, organisms of very different sizes swim in fundamentally different physical realms, owing to the relative scaling of viscous and inertial fluid stresses as a function of size and speed. In light of the size-dependent fluid forces, the kinematic constancy suggests three hypotheses: (1) swimming organisms adopt a single "ideal" swimming mode requiring the modification of muscle forces or motor patterns through ontog
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Harabaglia, Paolo, Massimiliano Iurcev, Denis Sandron, Teresa Tufaro, Marco Vona, and Franco Pettenati. "Preliminary Test of Source Parameters of Mwp6 Italian Earthquakes: Revisiting Kinematic Function Method." Applied Sciences 15, no. 3 (2025): 1072. https://doi.org/10.3390/app15031072.

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Macroseismic intensity data are the only source of information for historical earthquakes; it is therefore necessary to devise methods that allow us to retrieve as many source parameters as possible on the basis of these data. We present the inversion of macroseismic data as a first validation of an improved version of the kinematic function, KF. Following the previous results of some earthquakes on Italian territory and several validations by Californian events provided with instrumental solutions, we have now simplified the KF by reducing some degrees of freedom of the parameters and rearran
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Yabing Song and Na He. "Evaluation of kinematic parameters and characteristics of the source zone of the debris flow in Kongniba Watershed." World Journal of Advanced Engineering Technology and Sciences 5, no. 2 (2022): 034–44. http://dx.doi.org/10.30574/wjaets.2022.5.2.0042.

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The characteristics of the source zone of the debris flow watershed is one of the most significant factors governing debris flows initiation, at the same time it also plays a crucial role for disaster risk evaluation. With the aim of obtaining the basic characteristics of the source zone and computing the kinematic parameters, field investigations were conducted comprehensively, combining with the results of remote sensing interpretation, the origin and distribution regulations can be identified, and total amount of the loose solid materials can be determined, the corresponding value is 4.91×1
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Luxford, Fay, and Tim Woollings. "A Simple Kinematic Source of Skewness in Atmospheric Flow Fields." Journal of the Atmospheric Sciences 69, no. 2 (2012): 578–90. http://dx.doi.org/10.1175/jas-d-11-089.1.

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Abstract Geopotential height fields exhibit a well-known pattern of skewness, with distributions that are positively skewed on the poleward side of the midlatitude jets/storm tracks and negatively skewed on the equatorward side. This pattern has often been interpreted as a signature of nonlinear dynamical features, such as blocking highs and cutoff lows, and there is renewed interest in the higher moments of flow variables as indicators of the nature of the underlying dynamics. However, this paper suggests that skewness can arise as a simple kinematic consequence of the presence of jet streams
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Cao, Zelin, Xiaxin Tao, Zhengru Tao, and Aiping Tang. "Kinematic Source Modeling for the Synthesis of Broadband Ground Motion Using the f‐k Approach." Bulletin of the Seismological Society of America 109, no. 5 (2019): 1738–57. http://dx.doi.org/10.1785/0120180294.

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Abstract A procedure for building a kinematic source model is proposed in this article for the synthesis of broadband ground motion based on the frequency–wavenumber Green’s function. The spatial distribution of slip on the rupture plane is generated by combining asperity slip with random slip. A set of scaling laws recently updated for the global and local parameters of seismic sources is adopted. To characterize the temporal evolution of slip on the rupture plane, different rupture velocities, and rise times are first generated by considering the correlation with slip, and a source time func
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14

Sycheva, N. A. "Seismotectonic deformations and stress drop of earthquakes of Central Tien Shan." Geosystems of Transition Zones 8, no. 3 (2024): 174–200. http://dx.doi.org/10.30730/gtrz.2024.8.3.174-200.

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Based on the seismic moment tensor (SMT) data of 270 earthquakes in the Central Tien Shan, which occurred from 1978 to 2021 and include 63 events from the Global Centroid Moment Tensor catalog and 207 events from the works of Aleksander D. Kostyuk and Naylya A. Sycheva, the focal parameters (seismotectonic deformations (STD), kinematic and dynamic parameters, source radius, and stress drop) were calculated. The STD calculation was based on the approaches proposed in the studies of Yuriy V. Riznichenko and Sergei L. Yunga. The area under consideration is characterized by such deformation modes
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Баранов, О. О., Є. О. Баранова, А. О. Бреус та О. Ю. Кладова. "КІНЕМАТИЧНИЙ РОЗРАХУНОК ПОЛОЖЕННЯ ТА ОРІЄНТАЦІЇ ЗАХОПЛЮВАЛЬНОГО ПРИСТРОЮ РОБОТА ANNIN ROBOTICS AR3". Open Information and Computer Integrated Technologies, № 103 (1 травня 2025): 15–36. https://doi.org/10.32620/oikit.2025.103.02.

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This paper presents a comprehensive analysis and practical solution to the direct kinematics problem of the six-axis manipulator Annin Robotics AR3 – an open-source robotic platform widely used in educational, laboratory, and industrial environments. Considering the structural features of the AR3, a classical approach based on Denavit-Hartenberg parameters was chosen for kinematic modeling. The process of constructing specific coordinate systems for each manipulator link is described in detail, taking into account their placement and rotational axes. Based on the kinematic diagram, a table of
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Causse, M., L. A. Dalguer, and P. M. Mai. "Correction to: Variability of dynamic source parameters inferred from kinematic models of past earthquakes." Geophysical Journal International 207, no. 3 (2016): 1837. http://dx.doi.org/10.1093/gji/ggw371.

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Kropivny, Oleksandr, Andrii Hrechka, Andrii Kyrychenko, and Kyryl Shcherbyna. "Kinematic Dependencies of Two-axis Parallel Manipulator With Rotary Fastening of Hinges of Variable Length Links." Central Ukrainian Scientific Bulletin. Technical Sciences 2, no. 5(36) (2022): 22–30. http://dx.doi.org/10.32515/2664-262x.2022.5(36).2.22-30.

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In the article the kinematic problem for a new two-axis parallel manipulator with rotary hinged parallelogram, the source of which is a spindle unit, is performed. The analysis of the received kinematic dependencies is carried out. The presence of special provisions of the source body of the mechanism is established. The directions of further scientific researches are outlined. The parallel manipulator structure for consideration differs from previously developed fastenings of hinges of rods of variable length on rotary levers which rotation is coordinated with rotation of an initial link with
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18

Margaritis, Filippos, Konstantinos Mitsopoulos, Kostas Nizamis, Alkinoos Athanasiou, and Panagiotis D. Bamidis. "Kinematic and Dynamic Analysis of Lower Limb Movement: Towards the Design of a Wearable Rehabilitation Assistant Device." Global Clinical Engineering Journal 6, SI6 (2024): 84–88. https://doi.org/10.31354/globalce.v6isi6.266.

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This study outlines a comprehensive approach to the kinematic and dynamic analysis of lower limb movement, with the express purpose of designing an efficient wearable rehabilitation assistant device for the lower body. The approach begins by conducting a kinematic analysis of the lower limbs, presenting the degrees of freedom and each joint’s range of motion. A kinematic model is designed by deciding on a kinematic chain configuration and calculating the Denavit Hartenberg (DH) parameters. Next, differential kinematic analysis is employed to calculate the velocity of the limbs, generated by th
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19

Xu, Dongtao. "Kinematic reliability and sensitivity analysis of the modified Delta parallel mechanism." International Journal of Advanced Robotic Systems 15, no. 1 (2018): 172988141875910. http://dx.doi.org/10.1177/1729881418759106.

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In order to improve the kinematic reliability, it is crucial to find out the influence of each error source on the kinematic reliability of the mechanism. Reliability sensitivity analysis is used to find the changing rate in the probability of reliability in relation to the changes in distribution parameters. Based on the structural response surface function method, the functional relation between the kinematic reliability of a modified Delta parallel mechanism and the original input-error vectors is described using the quadratic function with cross terms. Moreover, the partial derivatives of
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20

Boeche, Corrado. "The RAVE harvest: from the relation between abundances and kinematic of the Milky Way stars to tools for the abundance analysis of the spectra." Proceedings of the International Astronomical Union 9, S298 (2013): 292–97. http://dx.doi.org/10.1017/s1743921313006480.

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AbstractRAVE is a spectroscopic survey of the Milky Way which collected more than 500,000 stellar spectra of nearby stars in the Galaxy. The RAVE consortium analysed these spectra to obtain radial velocities, stellar parameters and chemical abundances. These data, together with spatial and kinematic information like positions, proper motions, and distance estimations, make the RAVE database a rich source for galactic archaeology. I present recent investigations on the chemo-kinematic relations and chemical gradients in the Milky Way disk using RAVE data and compare our results with the Besanço
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21

Eva, Elena, Franco Pettenati, Stefano Solarino, and Livio Sirovich. "The focal mechanism of the 7 September 1920, Mw 6.5 earthquake: insights into the seismotectonics of the Lunigiana–Garfagnana area, Tuscany, Italy." Geophysical Journal International 228, no. 3 (2021): 1465–77. http://dx.doi.org/10.1093/gji/ggab411.

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SUMMARY To understand the seismotectonics and the seismic hazard of the study sector of the Northern Apennines (Italy), one of the most important earthquakes of magnitude Mw = 6.5 which struck the Lunigiana and Garfagnana areas (Tuscany) on 7 September 1920 should be studied. Given the early instrumental epoch of the event, neither geometric and kinematic information on the fault-source nor its fault-plane solution were available. Both areas were candidates for hosting the source fault and there was uncertainty between a normal fault with Apenninic direction or an anti-Apenninic strike-slip. W
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22

Emolo, A. "Kinematic Source Parameters for the 1989 Loma Prieta Earthquake from the Nonlinear Inversion of Accelerograms." Bulletin of the Seismological Society of America 95, no. 3 (2005): 981–94. http://dx.doi.org/10.1785/0120030193.

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23

Cultrera, G., A. Cirella, E. Spagnuolo, A. Herrero, E. Tinti, and F. Pacor. "Variability of Kinematic Source Parameters and Its Implication on the Choice of the Design Scenario." Bulletin of the Seismological Society of America 100, no. 3 (2010): 941–53. http://dx.doi.org/10.1785/0120090044.

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Matmurodov, Farkhod M., Oybek O. Daminov, Bozorboy Sh Sobirov, Muattar M. Abdurakxmanova, and Fakhriddin ugli M. Atakhanov. "Dynamic simulation of force loading of drives of mobile power facilities with variable external resistance." E3S Web of Conferences 486 (2024): 03001. http://dx.doi.org/10.1051/e3sconf/202448603001.

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The article describes dynamical simulation of the transfer of power load parameters from the engine to the final mechanism on a mobile power source under external variable loads. Using the dynamic model developed by the authors the kinematic and power characteristics of each intermediate mechanism can be found.
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Kruger, F., and F. Scherbaum. "The 29 September 1969, Ceres, South Africa, Earthquake: Full Waveform Moment Tensor Inversion for Point Source and Kinematic Source Parameters." Bulletin of the Seismological Society of America 104, no. 1 (2014): 576–81. http://dx.doi.org/10.1785/0120130209.

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IVANOV, OLEG. "PLANETARY SELF-ORGANIZATION." LIFE OF THE EARTH 42, no. 3 (2020): 271–82. http://dx.doi.org/10.29003/m1481.0514-7468.2020_42_3/271-282.

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The general characteristics of planetary systems are described. Well-known heat sources of evolution are considered. A new type of heat source, variations of kinematic parameters in a dynamical system, is proposed. The inconsistency of the perovskite-post-perovskite heat model is proved. Calculations of inertia moments relative to the D boundary on the Earth are given. The 9 times difference allows us to claim that the sliding of the upper layers at the Earth's rotation speed variations emit heat by viscous friction.This heat is the basis of mantle convection and lithospheric plate tectonics.
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Markov, M. G., and A. Yu Yumatov. "THE EFFECT OF PROBE POSITION IN BOREHOLE ON WAVE PARAMETERS ESTIMATED FROM ACOUSTIC LOG DATA." Russian Geology and Geophysics 35, no. 2 (1994): 127–31. https://doi.org/10.2113/rgg.1994.35.2.127.

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By using an analytic solution to the problem of calculation of a pressure field created by a point source of elastic variations situated in a borehole, synthetic wave patterns (WP) of acoustic logging (AL) are obtained. Readings of three-element probes of acoustic logging are modelled with various positions of an emitter and receivers relative to the borehole axis. The calculated WP’s are processed by a software complex for processing wave AL data. Errors of the determination of kinematic and dynamic parameters (amplitudes) and waves are estimated as a function of probe location in the borehol
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Rivas, Cindy U., María E. Ayala, and Andrés Aragón. "Effect of various pH levels on the sperm kinematic parameters of boars." South African Journal of Animal Science 52, no. 5 (2023): 693–704. http://dx.doi.org/10.4314/sajas.v52i5.13.

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The objective of this work was to identify the effects of pH on the structure of kinematic sperm subpopulations using commercial doses of boar semen diluted in Androstar Plus extender. We adjusted the pH value of the diluted semen samples to 7.4, 7.6, 7.8, and 8.0, and evaluated motility parameters using an open-source computer-assisted sperm analysis system. We evaluated the dataset of the kinematic parameters of the individual sperm for the effects of pH on the average values overall and on the subpopulations of sperm. To identify these subpopulations, we reduced the dimensionality of the da
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Lin 林, Rongpei 荣沛, Yi 易. Yang 杨, Fang 芳. Shen 沈, Gilbert Pi, and Yucong 雨淙 Li 李. "An Algorithm for the Determination of Coronal Mass Ejection Kinematic Parameters Based on Machine Learning." Astrophysical Journal Supplement Series 271, no. 2 (2024): 59. http://dx.doi.org/10.3847/1538-4365/ad2dea.

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Abstract Coronal mass ejections (CMEs) constitute the major source of severe space weather events, with the potential to cause enormous damage to humans and spacecraft in space. It is becoming increasingly important to detect and track CMEs, since there are more and more space activities and facilities. We have developed a new algorithm to automatically derive a CME’s kinematic parameters based on machine learning. Our method consists of three steps: recognition, tracking, and the determination of parameters. First, we train a convolutional neural network to classify images from Solar and Heli
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Kaur, Barjinder, and N. S. Saini. "Dust Ion-Acoustic Shock Waves in a Multicomponent Magnetorotating Plasma." Zeitschrift für Naturforschung A 73, no. 3 (2018): 215–23. http://dx.doi.org/10.1515/zna-2017-0397.

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AbstractThe nonlinear properties of dust ion-acoustic (DIA) shock waves in a magnetorotating plasma consisting of inertial ions, nonextensive electrons and positrons, and immobile negatively charged dust are examined. The effects of dust charge fluctuations are not included in the present investigation, but the ion kinematic viscosity (collisions) is a source of dissipation, leading to the formation of stable shock structures. The Zakharov–Kuznetsov–Burgers (ZKB) equation is derived using the reductive perturbation technique, and from its solution the effects of different physical parameters,
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31

Carollo, Daniela. "CN Anomalies in the Halo System." Proceedings of the International Astronomical Union 10, H16 (2012): 282–83. http://dx.doi.org/10.1017/s1743921314005778.

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AbstractI present an evaluation of the kinematic properties of halo red giants thought to have formed in globular clusters based on the strength of their UV/blue CN and CH absorption features. The sample has been selected from the catalog of Martell et al. (2011). The orbital parameters of CN-strong halo stars are compared to those of the inner and outer halo populations, and to the orbital parameters of globular clusters with well-studied Galactic orbits. It has been found that both the clusters and the CN-strong field stars exhibit kinematic and orbital properties similar to the inner halo p
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Paradisopoulou, P. M., E. E. Papadimitriou, V. G. Karakostas, and A. Kilias. "Application for source parameters calculations as input for static stress changes studies." Bulletin of the Geological Society of Greece 40, no. 4 (2007): 2008. http://dx.doi.org/10.12681/bgsg.17294.

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The study of static Coulomb Stress changes requires initially the collection of information on the major active faults in a study area concerning their geometry and kinematic properties and then a series of complex calculation for stress changes that are associated with both coseismic displacements of the stronger events and the tectonic loading on these major faults. The Coulomb Stress Application has been developed as a tool to provide a user-friendly way of entering the necessary data and an efficient way to perform the complex calculations procedure. More specifically the aim of the applic
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Gopinathan, D., M. Venugopal, D. Roy, K. Rajendran, S. Guillas, and F. Dias. "Uncertainties in the 2004 Sumatra–Andaman source through nonlinear stochastic inversion of tsunami waves." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 473, no. 2205 (2017): 20170353. http://dx.doi.org/10.1098/rspa.2017.0353.

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Numerical inversions for earthquake source parameters from tsunami wave data usually incorporate subjective elements to stabilize the search. In addition, noisy and possibly insufficient data result in instability and non-uniqueness in most deterministic inversions, which are barely acknowledged. Here, we employ the satellite altimetry data for the 2004 Sumatra–Andaman tsunami event to invert the source parameters. We also include kinematic parameters that improve the description of tsunami generation and propagation, especially near the source. Using a finite fault model that represents the e
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Böttger, Sven, Tolga-Can Çallar, Achim Schweikard, and Elmar Rückert. "Medical robotics simulation framework for application-specific optimal kinematics." Current Directions in Biomedical Engineering 5, no. 1 (2019): 145–48. http://dx.doi.org/10.1515/cdbme-2019-0037.

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AbstractMost kinematic structures in robot architectures for medical tasks are not optimal. Further, the workspace and payloads are often oversized which results in high product prices that are not suitable for a clinical technology transfer. To investigate optimal kinematic structures and configurations, we have developed an adaptive simulation framework with an associated workflow for requirement analyses, modelling and simulation of specific robot kinematics. The framework is used to build simple and cost effective medical robot designs and was evaluated in a tool manipulation task where me
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Sinclair, Jonathan, Jack Hebron, and Paul J. Taylor. "The Test-retest Reliability of Knee Joint Center Location Techniques." Journal of Applied Biomechanics 31, no. 2 (2015): 117–21. http://dx.doi.org/10.1123/jab.2013-0312.

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The principal source of measurement error in three-dimensional analyses is the definition of the joint center about which segmental rotations occur. The hip joint has received considerable attention in three-dimensional modeling analyses yet the reliability of the different techniques for the definition of the knee joint center has yet to be established. This study investigated the reliability of five different knee joint center estimation techniques: femoral epicondyle, femoral condyle, tibial ridge, plugin-gait, and functional. Twelve male participants walked at 1.25 m·s−1and three-dimension
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Polini, Wilma, and Andrea Corrado. "A kinematic approach for error modelling in drilling." Engineering Computations 36, no. 4 (2019): 1364–83. http://dx.doi.org/10.1108/ec-11-2018-0511.

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Purpose The purpose of this paper is to model how geometric errors of a machined surface (or manufacturing errors) are related to locators’ error, workpiece form error and machine tool volumetric error. A kinematic model is presented that puts into relationship the locator error, the workpiece form deviations and the machine tool volumetric error. Design/methodology/approach The paper presents a general and systematic approach for geometric error modelling in drilling because of the geometric errors of locators positioning, of workpiece datum surface and of machine tool. The model can be imple
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Li, Nannan, Hongbin Ma, Qing Fei, Hao Zhou, Shaoke Li, and Sunjie Chen. "Motion Control of 6-DOF Manipulator Based on EtherCAT." Journal of Advanced Computational Intelligence and Intelligent Informatics 22, no. 4 (2018): 415–28. http://dx.doi.org/10.20965/jaciii.2018.p0415.

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We introduce a real-time motion control system that uses the EtherCAT protocol and apply it to a manipulator with six degrees of freedom. The complexity of a multi-joint manipulator leads to higher requirements for synchronous and real-time performance. EtherCAT technology can greatly improve the performance in terms of accuracy, speed, capability, and band width in industrial control, which is crucial in our robot projects. In this paper, we discuss a servo motion control system based on EtherCAT using IgH as the open-source master station. A Linux operating system is adopted because of the a
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Alam, Md Moktadir, Soichi Ibaraki, and Koki Fukuda. "Kinematic Modeling of Six-Axis Industrial Robot and its Parameter Identification: A Tutorial." International Journal of Automation Technology 15, no. 5 (2021): 599–610. http://dx.doi.org/10.20965/ijat.2021.p0599.

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In advanced industrial applications, like machining, the absolute positioning accuracy of a six-axis robot is indispensable. To improve the absolute positioning accuracy of an industrial robot, numerical compensation based on positioning error prediction by the Denavit and Hartenberg (D-H) model has been investigated extensively. The main objective of this study is to review the kinematic modeling theory for a six-axis industrial robot. In the form of a tutorial, this paper defines a local coordinate system based on the position and orientation of the rotary axis average lines, as well as the
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Bollen, Dylan, Devika Kamath, Hans Van Winckel, Orsola De Marco, and Mark Wardle. "Jet parameters for a diverse sample of jet-launching post-AGB binaries." Monthly Notices of the Royal Astronomical Society 502, no. 1 (2021): 445–62. http://dx.doi.org/10.1093/mnras/stab071.

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ABSTRACT Jets are a commonly observed phenomenon in post-asymptotic giant branch (post-AGB) binaries. Due to the orbital motion of the binary, the jet causes variable absorption in the Balmer profiles. In previous work, we have developed spatio-kinematic and radiative transfer models to reproduce the observed Balmer line variability and derive the spatio-kinematic structure of the jet and its mass-loss rate. Here, we apply our jet model to five post-AGB binaries with distinct H α line variability and diverse orbital properties. Our models fit the H α line variations very well. We estimate jet
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Reinwald, Michael, Moritz Bernauer, Heiner Igel, and Stefanie Donner. "Improved finite-source inversion through joint measurements of rotational and translational ground motions: a numerical study." Solid Earth 7, no. 5 (2016): 1467–77. http://dx.doi.org/10.5194/se-7-1467-2016.

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Abstract. With the prospects of seismic equipment being able to measure rotational ground motions in a wide frequency and amplitude range in the near future, we engage in the question of how this type of ground motion observation can be used to solve the seismic source inverse problem. In this paper, we focus on the question of whether finite-source inversion can benefit from additional observations of rotational motion. Keeping the overall number of traces constant, we compare observations from a surface seismic network with 44 three-component translational sensors (classic seismometers) with
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41

Rout, P. K., S. N. Sahoo, and G. C. Dash. "Effect of heat source and chemical reaction on MHD flow past a vertical plate with variable temperature." Journal of Naval Architecture and Marine Engineering 13, no. 1 (2016): 101–10. http://dx.doi.org/10.3329/jname.v13i1.23930.

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An analysis has been carried out to study the effect of heat source and chemical reaction on MHD flow past a vertical plate subject to a constant motion with variable temperature and concentration. The governing equations are solved by the Laplace transformation technique. The effects of various flow parameters on the flow dynamics are discussed. Findings of the present study reveal that the velocity of the fluid reduces due to the dominating effect of kinematic viscosity over molecular diffusivity in case of heavier species. Presence of heat source reduces the velocity of the flow. Presence o
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42

Vişan, Alexandra Liana, Gabriel Constantin Bogdanof, Dumitru Milea, Radu Ciupercă, and Gabriel Gheorghe. "Kinematic parameters determination of the drilling equipment designed to work in slope degraded terrains." E3S Web of Conferences 112 (2019): 03016. http://dx.doi.org/10.1051/e3sconf/201911203016.

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This paper aims to present the cinematic parameters determination of a drilling equipment design to work in slope degraded terrains, based on field experimental data acquired in normal exploitation condition and also in heavy environmental conditions. This equipment is developed in order conduct forestation and rehabilitation works of degraded lands and to be incorporated on innovative planting technology (degraded soil processing, levelling and terrace surface modelling, planting settlement, etc). This technology answers to the need to implement measures of environmental rehabilitation and en
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Sakai, Nobuyuki, Mareki Honma, Hiroyuki Nakanishi, Hirofumi Sakanoue, and Tomoharu Kurayama. "The outer rotation curve project with VERA: Trigonometric parallax of IRAS 05168+3634." Proceedings of the International Astronomical Union 8, S289 (2012): 95–98. http://dx.doi.org/10.1017/s1743921312021199.

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AbstractWe present a measurement of the trigonometric parallax of IRAS 05168+3634 with VERA. The parallax is 0.532 ± 0.053 milli-arcsec, corresponding to a distance of 1.88+0.21−0.17 kpc. This is significantly closer than the previous distance estimate of 6 kpc based on a kinematic distance measurement. This drastic change in the source distance implies the need for revised values of not only the physical parameters of IRAS 05168+3634, but it also impies a different location in the Galaxy, placing it in the Perseus arm rather than the Outer arm. We also measured the proper motion of the source
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Bakulin, Andrey, Ilya Silvestrov, and Maxim Protasov. "Evaluating strategies for estimation of local kinematic parameters in noisy land data: quality versus performance trade-offs." Journal of Geophysics and Engineering 18, no. 6 (2021): 890–907. http://dx.doi.org/10.1093/jge/gxab060.

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Abstract Modern land seismic data are typically acquired using high spatial trace density with small source and receiver arrays or point sources and sensors. These datasets are challenging to process due to their massive size and relatively low signal-to-noise ratio caused by scattered near-surface noise. Therefore, prestack data enhancement becomes a critical step in the processing flow. Nonlinear beamforming had proved very powerful for 3D land data. However, it requires computationally intensive estimations of local coherency on dense spatial/temporal grids in 3D prestack data cubes. We pre
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S.Noroozi, Navid Aslani, Samira Al- Nasser, and Richard Hartley. "The Need for Monitoring Deltoid Tension and Shoulder Kinematics during a Total Reverse Shoulder Arthroplasty (RSA)." Proceedings of the International Conference on Condition Monitoring and Asset Management 2024, no. 1 (2024): 7–13. https://doi.org/10.1784/cm2024.5b4.

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The shoulder is one of the most active joints within the human body. Recruited in many daily activities either in active use such as moving or carrying objects or as a source of stability during locomotion. As a result, pain and lack of motion in the shoulder can be debilitating. The replacement of the joint, with improper joint tension, can leave patients with suboptimal outcomes including pain, limited motion, and other functional problems. With no way for surgeons to monitor the tension during the operation, the joint is set using haptic feedback which heavily relies on the surgeon's experi
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Maia, I. A., P. Jordan, A. V. G. Cavalieri, and V. Jaunet. "Two-point wavepacket modelling of jet noise." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 475, no. 2227 (2019): 20190199. http://dx.doi.org/10.1098/rspa.2019.0199.

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This paper is focused on the study of a kinematic wavepacket model for jet noise based on two-point statistics. The model contains physical parameters that define its structure in terms of wavenumber, envelope shape and coherence decay. These parameters, which are necessary to estimate the sound pressure levels radiated by the source, were educed from a large-eddy simulation database of a Mach 0.4, fully turbulent jet. The sound pressure levels predicted by the model were compared with acoustic data and the results show that when the parameters are carefully educed from the data, the sound pre
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Cusin, Giulia, and Gianmassimo Tasinato. "Doppler boosting the stochastic gravitational wave background." Journal of Cosmology and Astroparticle Physics 2022, no. 08 (2022): 036. http://dx.doi.org/10.1088/1475-7516/2022/08/036.

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Abstract One of the guaranteed features of the stochastic gravitational wave background (SGWB) is the presence of Doppler anisotropies induced by the motion of the detector with respect to the rest frame of the SGWB source. We point out that kinematic effects can be amplified if the SGWB is characterised by large tilts in its spectrum as a function of frequency, or by sizeable intrinsic anisotropies. Hence we examine the possibility to use Doppler effects as complementary probes of the SGWB frequency profile. For this purpose we work in multipole space, and we study the effect of kinematic mod
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Buzzo, M. L., B. Ziegler, P. Amram, et al. "Physical and kinematic conditions of the local merging galaxy NGC 1487." Monthly Notices of the Royal Astronomical Society 503, no. 1 (2021): 106–23. http://dx.doi.org/10.1093/mnras/stab426.

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ABSTRACT We present optical VLT/MUSE integral field spectroscopy data of the merging galaxy NGC 1487. We use fitting techniques to study the ionized gas emission of this merger and its main morphological and kinematical properties. We measured flat and sometimes inverted oxygen abundance gradients in the subsystems composing NGC 1487, explained by metal mixing processes common in merging galaxies. We also measured widespread star-forming bursts, indicating that photoionization by stars is the primary ionization source of the galaxy. The kinematic map revealed a rotating pattern in the gas in t
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Wen, Jian, Jiankuan Xu, and Xiaofei Chen. "The relations between the corner frequency, seismic moment and source dynamic parameters derived from the spontaneous rupture of a circular fault." Geophysical Journal International 228, no. 1 (2021): 134–46. http://dx.doi.org/10.1093/gji/ggab346.

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SUMMARY The stress drop is an important dynamic source parameter for understanding the physics of source processes. The estimation of stress drops for moderate and small earthquakes is based on measurements of the corner frequency ${f_c}$, the seismic moment ${M_0}$ and a specific theoretical model of rupture behaviour. To date, several theoretical rupture models have been used. However, different models cause considerable differences in the estimated stress drop, even in an idealized scenario of circular earthquake rupture. Moreover, most of these models are either kinematic or quasi-dynamic
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Ibarra-Pérez, Teodoro, José Manuel Ortiz-Rodríguez, Fernando Olivera-Domingo, Héctor A. Guerrero-Osuna, Hamurabi Gamboa-Rosales, and Ma del Rosario Martínez-Blanco. "A Novel Inverse Kinematic Solution of a Six-DOF Robot Using Neural Networks Based on the Taguchi Optimization Technique." Applied Sciences 12, no. 19 (2022): 9512. http://dx.doi.org/10.3390/app12199512.

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The choice of structural parameters in the design of artificial neural networks is generally based on trial-and-error procedures. They are regularly estimated based on the previous experience of the researcher, investing large amounts of time and processing resources during network training, which are usually limited and do not guarantee the optimal selection of parameters. This paper presents a procedure for the optimization of the training dataset and the optimization of the structural parameters of a neural network through the application of a robust neural network design methodology based
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