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Статті в журналах з теми "Planar models"

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Автор: Grafiati

Опубліковано: 30 травня 2022

Оновлено: 31 травня 2022

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1

Repetowicz, Przemysław, Uwe Grimm, and Michael Schreiber. "Planar quasiperiodic Ising models." Materials Science and Engineering: A 294-296 (December 2000): 638–41. http://dx.doi.org/10.1016/s0921-5093(00)01153-9.

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2

Ivanov, Evgeny, Luca Mezincescu, and Paul K. Townsend. "Planar super-Landau models." Journal of High Energy Physics 2006, no. 01 (January 26, 2006): 143. http://dx.doi.org/10.1088/1126-6708/2006/01/143.

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3

Curtright, Thomas, Luca Mezincescu, Evgeny Ivanov, and Paul K. Townsend. "Planar super-Landau models revisited." Journal of High Energy Physics 2007, no. 04 (April 3, 2007): 020. http://dx.doi.org/10.1088/1126-6708/2007/04/020.

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4

Yousaf, Z., and M. Zaeem-ul-Haq Bhatti. "Some anisotropic planar stellar models." International Journal of Geometric Methods in Modern Physics 15, no. 09 (August 8, 2018): 1850160. http://dx.doi.org/10.1142/s0219887818501608.

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Анотація:

The aim of this paper is to investigate the influence of expansion-free condition and cosmological constant in the modeling of planar relativistic self-gravitating objects. For this purpose, we have considered a non-static diagonally oriented planar geometry that is coupled with locally anisotropic non-radiating matter configurations. Firstly, we have explored the factor responsible for maintaining conformal flat state by relating tidal forces with matter dynamical variables. Then, we have smoothly joined our relativistic interior with the exterior one through Darmois junction conditions in the [Formula: see text]-dominated epoch. We have also shown that the well-known perfect fluid Skripkin model has disobeyed matching conditions for the case of planar system with cosmological constant. Lastly, we have inspected family of exact analytical solutions of Einstein-[Formula: see text] field equations with various backgrounds, like, an/isotropic matter, separable energy density and barotropic equation of state.

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5

Drezner, Tammy, and Zvi Drezner. "Equity Models in Planar Location." Computational Management Science 4, no. 1 (June 13, 2006): 1–16. http://dx.doi.org/10.1007/s10287-006-0021-0.

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6

Arcioni, Paolo, Giuseppe Conciauro, and Matteo Repossi. "Planar Models of Reconfigurable MEMS Circuits." IEEE Transactions on Microwave Theory and Techniques 55, no. 4 (April 2007): 722–28. http://dx.doi.org/10.1109/tmtt.2007.893674.

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7

Chernyak, Vladimir Y., and Michael Chertkov. "Planar graphical models which are easy." Journal of Statistical Mechanics: Theory and Experiment 2010, no. 11 (November 2, 2010): P11007. http://dx.doi.org/10.1088/1742-5468/2010/11/p11007.

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8

Canali, C. M., G. M. Cicuta, L. Molinari, and E. Montaldi. "The quantum mechanical planar propagator: From vector models to planar graphs." Nuclear Physics B 265, no. 3 (March 1986): 485–505. http://dx.doi.org/10.1016/0550-3213(86)90170-7.

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9

Ostoja-Starzewski, Martin. "Lattice models in micromechanics." Applied Mechanics Reviews 55, no. 1 (January 1, 2002): 35–60. http://dx.doi.org/10.1115/1.1432990.

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This review presents the potential that lattice (or spring network) models hold for micromechanics applications. The models have their origin in the atomistic representations of matter on one hand, and in the truss-type systems in engineering on the other. The paper evolves by first giving a rather detailed presentation of one-dimensional and planar lattice models for classical continua. This is followed by a section on applications in mechanics of composites and key computational aspects. We then return to planar lattice models made of beams, which are a discrete counterpart of non-classical continua. The final two sections of the paper are devoted to issues of connectivity and rigidity of networks, and lattices of disordered (rather than periodic) topology. Spring network models offer an attractive alternative to finite element analyses of planar systems ranging from metals, composites, ceramics and polymers to functionally graded and granular materials, whereby a fiber network model of paper is treated in considerable detail. This review article contains 81 references.

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10

Johnston, D. A. "Symmetric vertex models on planar random graphs." Physics Letters B 463, no. 1 (September 1999): 9–18. http://dx.doi.org/10.1016/s0370-2693(99)00948-x.

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11

Lieshout, M. N. M. van. "An introduction to planar random tessellation models." Spatial Statistics 1 (May 2012): 40–49. http://dx.doi.org/10.1016/j.spasta.2012.02.002.

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12

Bellucci, S., P. Y. Casteill, J. F. Morales, and C. Sochichiu. "Spin bit models from non-planar SYM." Nuclear Physics B 699, no. 1-2 (November 2004): 151–73. http://dx.doi.org/10.1016/j.nuclphysb.2004.07.025.

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13

Coombes, Stephen, Helmut Schmidt, and Ingo Bojak. "Interface dynamics in planar neural field models." Journal of Mathematical Neuroscience 2, no. 1 (2012): 9. http://dx.doi.org/10.1186/2190-8567-2-9.

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14

Sorrentino, R. "Planar Circuits, Waveguide Models, and Segmentation Method." IEEE Transactions on Microwave Theory and Techniques 33, no. 10 (October 1985): 1057–66. http://dx.doi.org/10.1109/tmtt.1985.1133169.

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15

Gruber, Christian, Roman Kotecký, and Daniel Ueltschi. "Planar and lamellar antiferromagnetism in Hubbard models." Journal of Physics A: Mathematical and General 33, no. 44 (October 27, 2000): 7857–71. http://dx.doi.org/10.1088/0305-4470/33/44/302.

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16

de Jager, B., and R. E. Skelton. "Input-output selection for planar tensegrity models." IEEE Transactions on Control Systems Technology 13, no. 5 (September 2005): 778–85. http://dx.doi.org/10.1109/tcst.2005.847346.

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17

Guionnet, A., V. F. R. Jones, D. Shlyakhtenko, and P. Zinn-Justin. "Loop Models, Random Matrices and Planar Algebras." Communications in Mathematical Physics 316, no. 1 (October 13, 2012): 45–97. http://dx.doi.org/10.1007/s00220-012-1573-1.

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18

Benfatto, G., P. Falco, and V. Mastropietro. "Extended Scaling Relations for Planar Lattice Models." Communications in Mathematical Physics 292, no. 2 (August 14, 2009): 569–605. http://dx.doi.org/10.1007/s00220-009-0888-z.

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19

Pradisi, G., A. Sagnotti, and Ya S. Stanev. "Planar duality in SU(2) WZW models." Physics Letters B 354, no. 3-4 (July 1995): 279–86. http://dx.doi.org/10.1016/0370-2693(95)00532-p.

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20

Bathas, George, and Herbert Neuberger. "Chiral Yukawa models in the planar limit." Physics Letters B 293, no. 3-4 (October 1992): 417–22. http://dx.doi.org/10.1016/0370-2693(92)90906-k.

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21

Khajeh, S., A. A. Ardalan, and H. Schuh. "INTERFEROMETRIC PATH MODELS FOR GNSS GROUND-BASED PHASE ALTIMETRY." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-4/W18 (October 18, 2019): 597–603. http://dx.doi.org/10.5194/isprs-archives-xlii-4-w18-597-2019.

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Анотація:

Abstract. Altimetry by using GNSS (Global Navigation Satellite Systems) reflectometry is regarded as a new promising technique. One important step to utilize this technique is modeling the interferometric path (the difference between the direct and the reflected signal paths). This paper evaluates three models: the planar model, the planar model with tropospheric correction and a model based on ray-tracing. If decimeter level accuracy for water surface fluctuation is required, the planar model cannot be used when a receiver is at an altitude of a few hundred meters and observations are taken at low elevation angles. On the other hand, depending on the mapping function and zenith total delay in the tropospheric correction, the planar model with tropospheric correction can provide decimeter level accuracy for low altitude stations. If simulated observations with a 1 cm accuracy have been employed to estimate Sea Surface Height (SSH) by the model based on ray-tracing the numerical results present 1 cm as RMSE for phase retrieval and 5 cm for Doppler retrieval. The planar model with tropospheric correction does not yield RMSE better than some decimeters for the same condition.

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22

Caro, C. G., R. C. Schroter, N. Watkins, S. J. Sherwin, and V. Sauret. "Steady inspiratory flow in planar and non–planar models of human bronchial airways." Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences 458, no. 2020 (April 8, 2002): 791–809. http://dx.doi.org/10.1098/rspa.2001.0946.

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23

Xu, Qingshan, and Wenbing Tao. "Planar Prior Assisted PatchMatch Multi-View Stereo." Proceedings of the AAAI Conference on Artificial Intelligence 34, no. 07 (April 3, 2020): 12516–23. http://dx.doi.org/10.1609/aaai.v34i07.6940.

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Анотація:

The completeness of 3D models is still a challenging problem in multi-view stereo (MVS) due to the unreliable photometric consistency in low-textured areas. Since low-textured areas usually exhibit strong planarity, planar models are advantageous to the depth estimation of low-textured areas. On the other hand, PatchMatch multi-view stereo is very efficient for its sampling and propagation scheme. By taking advantage of planar models and PatchMatch multi-view stereo, we propose a planar prior assisted PatchMatch multi-view stereo framework in this paper. In detail, we utilize a probabilistic graphical model to embed planar models into PatchMatch multi-view stereo and contribute a novel multi-view aggregated matching cost. This novel cost takes both photometric consistency and planar compatibility into consideration, making it suited for the depth estimation of both non-planar and planar regions. Experimental results demonstrate that our method can efficiently recover the depth information of extremely low-textured areas, thus obtaining high complete 3D models and achieving state-of-the-art performance.

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24

Mangavu, Ganesh, Karthikeyan R, Venkitachalam P, Guruguhan G, S. Shrinithi, Kannan S, and Anjan Kumar Dash. "The Influence of Non-planar (Spatial) Links in the Static Characteristics Behavior of Planar Parallel Manipulator." IAES International Journal of Robotics and Automation (IJRA) 6, no. 3 (September 1, 2017): 151. http://dx.doi.org/10.11591/ijra.v6i3.pp151-167.

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Анотація:

<span>Conventional planar manipulators have all their links in a single plane. Increasing payload at the end-effecter/mobile platform can induce high stress in the links due to cantilever nature of links. Thus it limits the total vertical load that can be applied on the mobile platform. In contrast to the links in conventional planar parallel mechanisms, non-planar links are proposed in this paper, i.e., links are made inclined to the horizontal plane and non planar legs are constructed. Although the links are made non-planar, the rotary (or prismatic) joints axes remain perpendicular (or parallel) to the plane of the base platform, which retains the planar motion of the end-effecter. For studying the application of such non planar links in planar manipulators, new models of inertia, stiffness and leg dynamics have to be developed. In this article, these models are developed and with the developed models, the static analysis is done on the planar manipulators with non-planar links and the performance is compared with the corresponding conventional planar manipulators.</span>

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25

AU-YANG, HELEN, and JACQUES H. H. PERK. "NEW RESULTS FOR SUSCEPTIBILITIES IN PLANAR ISING MODELS." International Journal of Modern Physics B 16, no. 14n15 (June 20, 2002): 2089–95. http://dx.doi.org/10.1142/s0217979202011834.

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26

Ganesh, M., Anjan Kumar Dash, P. Venkitachalam, and S. Shrinithi. "Static Characteristic Analysis of Spatial (Non-Planar) Links in Planar Parallel Manipulator." Robotica 39, no. 1 (May 6, 2020): 88–106. http://dx.doi.org/10.1017/s026357472000020x.

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SUMMARYConventional planar manipulators have their links in a single plane. Increasing payload at the end effector/mobile platform can induce high stress in the links due to the cantilever nature of links. Thus, it limits the total vertical load that can be applied on the mobile platform. In contrast to the links in conventional planar parallel mechanisms, non-planar links are proposed in this paper, that is, links are made inclined to the horizontal plane and non-planar legs are constructed. Though the links are made non-planar, the end effectors’ planar motion is retained. For studying the application of such non-planar links in planar manipulators, new models of inertia, stiffness and leg dynamics have to be developed. In this article, these models are developed by the static analysis of the planar manipulators with non-planar links, and the performance is compared with the corresponding conventional planar manipulators.

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27

Rastelli, E., S. Regina, and A. Tassi. "Breaking-symmetry fields in two-dimensional planar models." Journal of Magnetism and Magnetic Materials 272-276 (May 2004): 997–98. http://dx.doi.org/10.1016/j.jmmm.2003.12.052.

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28

Mikheev, Lev V., and Michael E. Fisher. "Exact variational analysis of layered planar Ising models." Physical Review Letters 70, no. 2 (January 11, 1993): 186–89. http://dx.doi.org/10.1103/physrevlett.70.186.

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29

Kolev, I., and A. Bogaerts. "Numerical Models of the Planar Magnetron Glow Discharges." Contributions to Plasma Physics 44, no. 7-8 (November 2004): 582–88. http://dx.doi.org/10.1002/ctpp.200410085.

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30

Bates, Erik, and Sourav Chatterjee. "Fluctuation lower bounds in planar random growth models." Annales de l'Institut Henri Poincaré, Probabilités et Statistiques 56, no. 4 (November 2020): 2406–27. http://dx.doi.org/10.1214/19-aihp1043.

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31

de Trazegnies, C., F. J. Miguel, C. Urdiales, A. Bandera, and F. Sandoval. "Planar shape recognition based on hidden Markov models." Electronics Letters 37, no. 24 (2001): 1448. http://dx.doi.org/10.1049/el:20010980.

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32

Emir-Farinas, H., and R. L. Francis. "Demand Point Aggregation for Planar Covering Location Models." Annals of Operations Research 136, no. 1 (April 2005): 175–92. http://dx.doi.org/10.1007/s10479-005-2044-2.

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33

Boutillier, Cédric. "Pattern Densities in Non-Frozen Planar Dimer Models." Communications in Mathematical Physics 271, no. 1 (January 23, 2007): 55–91. http://dx.doi.org/10.1007/s00220-006-0175-1.

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34

Stafford-Smith, B., A. Coull, and M. Cruvellier. "Planar models for analysis of intersecting bent structures." Computers & Structures 29, no. 2 (January 1988): 257–63. http://dx.doi.org/10.1016/0045-7949(88)90258-1.

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35

Bhaskar, S. K., Azriel Rosenfeld, and Angela Wu. "Models for neighbor dependency in planar point patterns." Pattern Recognition 22, no. 5 (January 1989): 533–59. http://dx.doi.org/10.1016/0031-3203(89)90022-8.

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36

Murphy, S., and A. Herrero. "Surface rupture in stochastic slip models." Geophysical Journal International 221, no. 2 (February 3, 2020): 1081–89. http://dx.doi.org/10.1093/gji/ggaa055.

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SUMMARY As an alternative to spectral methods, stochastic self-similar slip can be produced through a composite source model by placing a power-law scaling size-frequency distribution of circular slip dislocations on a fault surface. However these models do not accurately account for observed surface rupture behaviour. We propose a modification to the composite source model that corrects this issue. The advantage of this technique is that it accommodates the use of fractal slip distributions on non-planar fault surfaces. However to mimic a surface rupture using this technique, releasing the boundary condition at the top of the fault, we observed a systematic decrease in slip at shallow depths. We propose a new strategy whereby the surface is treated like a reflector with the slip being folded back onto the fault. Two different techniques based on this principal are presented: the first is the method of images. It requires a small change to pre-existing codes and works for planar faults. The second involves the use of a multistage trilateration technique. It is applied to non-planar faults described by an unstructured mesh. The reflected slip calculated using the two techniques is near identical on a planar fault, suggesting they are equivalent. Applying this correction, where reflected slip is accounted for in the composite source model, the lack of slip at shallow depths is not observed any more and there is no systematic trend with depth. However, there are other parameters which may affect the spatial distribution of slip across the fault plane. For example, the type of probability density function used in the placement of the subevent is also important. In the case where the location of maximum slip is known to a first order, a Gaussian may be appropriate to describe the probability function. For hazard assessment studies a uniform probability density function is more suitable as it provides no underlying systematic spatial trend.

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37

ORQUÍN-SERRANO, I., F. R. VILLATORO, A. FERRANDO, P. FERNÁNDEZ DE CÓRDOBA, and H. MICHINEL. "CHARACTERIZATION OF DIFFERENT REGIMES IN NONLINEAR LIQUID CRYSTAL MODELS." Journal of Nonlinear Optical Physics & Materials 21, no. 03 (September 2012): 1250042. http://dx.doi.org/10.1142/s0218863512500427.

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The range of validity of two models for nonlocal nonlinear optics in Nematic Liquid Crystals (NLC) is studied. Particularly the influence of the optical power and the initial position of the beam over its trajectory is studied when launching the beam with an offset in a planar cell. The main difference between both models is the dependence of the orientational angle with the optical field, either linear or nonlinear. The results demonstrate the critical role of the nonlinearity in the propagation of nematicons in NLC planar cells.

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38

Du, Shigui, Yunjin Hu, and Xiaofei Hu. "Generalized Models for Rock Joint Surface Shapes." Scientific World Journal 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/171873.

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Анотація:

Generalized models of joint surface shapes are the foundation for mechanism studies on the mechanical effects of rock joint surface shapes. Based on extensive field investigations of rock joint surface shapes, generalized models for three level shapes named macroscopic outline, surface undulating shape, and microcosmic roughness were established through statistical analyses of 20,078 rock joint surface profiles. The relative amplitude of profile curves was used as a borderline for the division of different level shapes. The study results show that the macroscopic outline has three basic features such as planar, arc-shaped, and stepped; the surface undulating shape has three basic features such as planar, undulating, and stepped; and the microcosmic roughness has two basic features such as smooth and rough.

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39

SERGEEV, S. M., G. E. BOOS, V. V. MANGAZEEV та YU G. STROGANOV. "Ψ-VECTORS FOR THREE-DIMENSIONAL MODELS". Modern Physics Letters A 11, № 06 (28 лютого 1996): 491–98. http://dx.doi.org/10.1142/s0217732396000539.

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In this letter we apply the method of ψ-vectors to the three-dimensional statistical model. This method gives the correspondence between the Bazhanov-Baxter model and its vertex version. We also apply the ψ-vectors method to the self-dual planar model.

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40

Ding, Hu, and Li-Qun Chen. "Nonlinear Models for Transverse Forced Vibration of Axially Moving Viscoelastic Beams." Shock and Vibration 18, no. 1-2 (2011): 281–87. http://dx.doi.org/10.1155/2011/607313.

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Nonlinear models of transverse vibration of axially moving viscoelastic beams subjected external transverse loads via steady-state periodical response are numerically investigated. An integro-partial-differential equation and a partial-differential equation of transverse motion can be derived respectively from a model of the coupled planar vibration for an axially moving beam. The finite difference scheme is developed to calculate steady-state response for the model of coupled planar and the two models of transverse motion under the simple support boundary. Numerical results indicate that the amplitude of the steady-state response for the model of coupled vibration and two models of transverse vibration predict qualitatively the same tendencies with the changing parameters and the integro-partial-differential equation gives results more closely to the coupled planar vibration.

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41

Huang, Xianzhen, and Yimin Zhang. "Probabilistic Approach to System Reliability of Mechanism with Correlated Failure Models." Mathematical Problems in Engineering 2012 (2012): 1–11. http://dx.doi.org/10.1155/2012/465853.

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Анотація:

In this paper, based on the kinematic accuracy theory and matrix-based system reliability analysis method, a practical method for system reliability analysis of the kinematic performance of planar linkages with correlated failure modes is proposed. The Taylor series expansion is utilized to derive a general expression of the kinematic performance errors caused by random variables. A proper limit state function (performance function) for reliability analysis of the kinematic performance of planar linkages is established. Through the reliability theory and the linear programming method the upper and lower bounds of the system reliability of planar linkages are provided. In the course of system reliability analysis, the correlation of different failure modes is considered. Finally, the practicality, efficiency, and accuracy of the proposed method are shown by a numerical example.

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42

Li, Ming, Xiao Ling Hu, Wen Bo Luo, You Jian Huang, and Ji Ling Bu. "Comparison of Two Hyperelastic Models for Carbon Black Filled Rubber." Applied Mechanics and Materials 275-277 (January 2013): 28–32. http://dx.doi.org/10.4028/www.scientific.net/amm.275-277.28.

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Mooney-Rivlin model and Ogden model are frequently used by engineers for finite element analysis of rubber material. Before simulation, simple, biaxial and planar extension tests are always done to get the model parameters. In this paper, we compare these two hyperelastic models with experimental data produced under simple, biaxial extension and planar extension loading conditions. The ability of the two models to reproduce different deformation modes is analyzed. Both material parameters and the stretch range of validity of each model are determined.

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43

Pi, Y., and B. Yang. "BLOCK ADJUSTMENT OF MULTISPECTRAL IMAGES WITHOUT GCP AIDED BY STEREO TLC IMAGES FOR ZY-3 SATELLITE." ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences V-2-2020 (August 3, 2020): 65–70. http://dx.doi.org/10.5194/isprs-annals-v-2-2020-65-2020.

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Abstract. Multispectral images are the main data source of optical satellite remote sensing application. Consistent geometric accuracy is the basis of image registration and fusion. But the multispectral images usually collected by the nadir imaging camera are of weak geometric intersection, which will lead to the rank defect of the adjustment equation when performing block adjustment (BA) directly, making the solution unstable. Thus, a planar BA aided by additional digital surface model (DSM) which can overcome this weak geometry is often used to improve the geometric accuracy and consistency of regional planar images. However, the inevitable elevation error and the indispensable ground control points (GCPs) make the method limited in practical application. In this paper, a new method aiming to the BA of planer multispectral images of ZY-3 satellite without use of GCPs is presented. This method introduces the constraint of stereo images to assist the BA of planar images. By configuring appropriate weights of different observations, the integrated optimization of positioning models of planar and stereo images can be achieved together. The effectiveness of the method was verified by the planar multispectral images and stereo three linear camera (TLC) images collected by ZY-3 satellite. The satisfactory results indicated the rationality and effectiveness of the presented method.

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Kostov, I. K. "The ADE face models on a fluctuating planar lattice." Nuclear Physics B 326, no. 3 (November 1989): 583–612. http://dx.doi.org/10.1016/0550-3213(89)90545-2.

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David, F. "Planar diagrams, two-dimensional lattice gravity and surface models." Nuclear Physics B 257 (January 1985): 45–58. http://dx.doi.org/10.1016/0550-3213(85)90335-9.

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Camia, Federico, Jianping Jiang, and Charles M. Newman. "FK–Ising coupling applied to near-critical planar models." Stochastic Processes and their Applications 130, no. 2 (February 2020): 560–83. http://dx.doi.org/10.1016/j.spa.2019.02.003.

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Yin, Fei, Sergio A. Velastin, Tim Ellis, and Dimitrios Makris. "Learning multi‐planar scene models in multi‐camera videos." IET Computer Vision 9, no. 1 (February 2015): 25–40. http://dx.doi.org/10.1049/iet-cvi.2013.0261.

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Au-Yang, Helen, and Jacques H. H. Perk. "Susceptibility calculations in periodic and quasiperiodic planar Ising models." Physica A: Statistical Mechanics and its Applications 321, no. 1-2 (April 2003): 81–89. http://dx.doi.org/10.1016/s0378-4371(02)01780-6.

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Ruff, C. F., S. W. Hughes, and D. J. Hawkes. "Volume estimation from sparse planar images using deformable models." Image and Vision Computing 17, no. 8 (June 1999): 559–65. http://dx.doi.org/10.1016/s0262-8856(98)00174-7.

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Starcev-Curcin, Anka, Andrija Raseta, and Zoran Brujic. "Automatic generation of planar RC Strut-and-Tie models." Facta universitatis - series: Architecture and Civil Engineering 11, no. 1 (2013): 1–12. http://dx.doi.org/10.2298/fuace1301001s.

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This paper presents a proposal for determining Strut-and-Tie models of reinforced concrete plane elements. For the purposes of analysis, a computer program was developed and a discrete topological optimization was applied, using a truss member for the design of the stress-strain state of the real member. The method can be used for the analysis of a part or a whole member and it is particularly suitable for the usage in the places of sudden changes of static and/or geometric characteristics of members. The general principle of the method is that compressed members replace concrete parts of the element (surface or volume) and tension members replace the reinforcement.

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