Log in

Relevant bibliographies by topics / Coupled Procedure / Journal articles

Journal articles on the topic 'Coupled Procedure'

To see the other types of publications on this topic, follow the link: Coupled Procedure.

Author: Grafiati

Published: 10 March 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Coupled Procedure.'

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.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Liu, Li, Cheng Zhang, Ruizhe Li, Bin Wang, and Guangwen Yang. "C-Coupler2: a flexible and user-friendly community coupler for model coupling and nesting." Geoscientific Model Development 11, no. 9 (August 31, 2018): 3557–86. http://dx.doi.org/10.5194/gmd-11-3557-2018.

Full text

Abstract:

Abstract. The Chinese C-Coupler (Community Coupler) family aims primarily to develop coupled models for weather forecasting and climate simulation and prediction. It is targeted to serve various coupled models with flexibility, user-friendliness, and extensive coupling functions. C-Coupler2, the latest version, includes a series of new features in addition to those of C-Coupler1 – including a common, flexible, and user-friendly coupling configuration interface that combines a set of application programming interfaces and a set of XML-formatted configuration files; the capability of coupling within one executable or the same subset of MPI (message passing interface) processes; flexible and automatic coupling procedure generation for any subset of component models; dynamic 3-D coupling that enables convenient coupling of fields on 3-D grids with time-evolving vertical coordinate values; non-blocking data transfer; facilitation for model nesting; facilitation for increment coupling; adaptive restart capability; and finally a debugging capability. C-Coupler2 is ready for use to develop various coupled or nested models. It has passed a number of test cases involving model coupling and nesting, and with various MPI process layouts between component models, and has already been used in several real coupled models.

APA, Harvard, Vancouver, ISO, and other styles

2

Baylot, James T. "Fully Coupled FE Analyses of Buried Structures." Shock and Vibration 1, no. 5 (1994): 451–60. http://dx.doi.org/10.1155/1994/451071.

Full text

Abstract:

Current procedures for determining the response of buried structures to the effects of the detonation of buried high explosives recommend decoupling the free-field stress analysis from the structure response analysis. A fully coupled (explosive–soil structure) finite element analysis procedure was developed so that the accuracies of current decoupling procedures could be evaluated. Comparisons of the results of analyses performed using this procedure with scale-model experiments indicate that this finite element procedure can be used to effectively evaluate the accuracies of the methods currently being used to decouple the free-field stress analysis from the structure response analysis.

APA, Harvard, Vancouver, ISO, and other styles

3

Losch, I. E., and J. A. G. Malherbe. "Design procedure for inhomogeneous coupled line sections." IEEE Transactions on Microwave Theory and Techniques 36, no. 7 (July 1988): 1186–90. http://dx.doi.org/10.1109/22.3654.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Hansen, J. P., and K. Taulbjerg. "A preorthonormalization procedure for coupled channel problems." Computer Physics Communications 51, no. 3 (November 1988): 317–21. http://dx.doi.org/10.1016/0010-4655(88)90144-0.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Zienkiewicz, O. C., and R. L. Taylor. "Coupled problems—A simple time-stepping procedure." Communications in Applied Numerical Methods 1, no. 5 (September 1985): 233–39. http://dx.doi.org/10.1002/cnm.1630010508.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Deb, Debasis, and Kamal C. Das. "Bolt-Grout Interactions in Elastoplastic Rock Mass Using Coupled FEM-FDM Techniques." Advances in Civil Engineering 2010 (2010): 1–13. http://dx.doi.org/10.1155/2010/149810.

Full text

Abstract:

Numerical procedure based on finite element method (FEM) and finite difference method (FDM) for the analysis of bolt-grout interactions are introduced in this paper. The finite element procedure incorporates elasto-plastic concepts with Hoek and Brown yield criterion and has been applied for rock mass. Bolt-grout interactions are evaluated based on finite difference method and are embedded in the elasto-plastic procedures of FEM. The experimental validation of the proposed FEM-FDM procedures and numerical examples of a bolted tunnel are provided to demonstrate the efficacy of the proposed method for practical applications.

APA, Harvard, Vancouver, ISO, and other styles

7

Choy, F. K., Y. F. Ruan, R. K. Tu, J. J. Zakrajsek, and D. P. Townsend. "Modal Analysis of Multistage Gear Systems Coupled With Gearbox Vibrations." Journal of Mechanical Design 114, no. 3 (September 1, 1992): 486–97. http://dx.doi.org/10.1115/1.2926577.

Full text

Abstract:

This paper presents an analytical procedure to simulate vibrations in gear transmission systems. This procedure couples the dynamics of the rotor-bearing gear system with the vibration in the gearbox structure. The modal synthesis method is used in solving the overall dynamics of the system, and a variable time-stepping integration scheme is used in evaluating the global transient vibration of the system. Locally each gear stage is modelled as a multimass rotor-bearing system using a discrete model. The modal characteristics are calculated using the matrix-transfer technique. The gearbox structure is represented by a finite element model, and modal parameters are solved by using NASTRAN. The rotor-gear stages are coupled through nonlinear compliance in the gear mesh while the gearbox structure is coupled through the bearing supports of the rotor system. Transient and steady state vibrations of the coupled system are examined in both time and frequency domains. A typical three-geared system is used as an example for demonstration of the developed procedure.

APA, Harvard, Vancouver, ISO, and other styles

8

Glock, H. W., K. Rothemund, and U. van Rienen. "CSC - A procedure for coupled S-parameter calculations." IEEE Transactions on Magnetics 38, no. 2 (March 2002): 1173–76. http://dx.doi.org/10.1109/20.996300.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Fidkowski, Zbigniew, and Lechoslaw Krolikowski. "Thermally coupled system of distillation columns: Optimization procedure." AIChE Journal 32, no. 4 (April 1986): 537–46. http://dx.doi.org/10.1002/aic.690320403.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Errera, Marc-Paul, and Bénédicte Baqué. "A quasi-dynamic procedure for coupled thermal simulations." International Journal for Numerical Methods in Fluids 72, no. 11 (March 7, 2013): 1183–206. http://dx.doi.org/10.1002/fld.3782.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Mathur, S. R., and J. Y. Murthy. "Acceleration of Anisotropic Scattering Computations Using Coupled Ordinates Method (COMET)." Journal of Heat Transfer 123, no. 3 (November 25, 2000): 607–12. http://dx.doi.org/10.1115/1.1370506.

Full text

Abstract:

Traditional sequential solution procedures for solving coupled heat transfer and radiation problems are known to perform very poorly when the optical thickness is high. This poor performance can be traced to the fact that sequential procedures cannot handle strong inter-equation coupling resulting from large absorption and scattering coefficients. This paper extends the use of the coupled ordinates method (COMET) to problems involving anisotropic scattering, where inter-equation coupling results from the in-scattering terms. A finite volume formulation for arbitrary unstructured meshes is used to discretize the radiative transfer equation. An efficient point-solution procedure is devised which is suitable for different scattering phase functions, and eliminates the cubic dependence of the operation count on the angular discretization. This solution scheme is used as a relaxation sweep in a multigrid procedure designed to eliminate long-wavelength errors. The method is applied to scattering problems and shown to substantially accelerate convergence for moderate to large optical thicknesses.

APA, Harvard, Vancouver, ISO, and other styles

12

Kumbhakar, Dharmadas. "Nonlinear Coherent Directional Coupler: Coupled Mode Theory and BPM Simulation." International Journal of Optics 2012 (2012): 1–8. http://dx.doi.org/10.1155/2012/173250.

Full text

Abstract:

Finite difference beam propagation method is an accurate numerical procedure, used here to explore the switching dynamics of a nonlinear coherent directional coupler. The coupling lengths derived from this simulation are compared with coupled mode theories. BPM results for the critical power follow the trend of the coupled mode theories, but it lies in between two coupled mode theories. Coupled mode theory is sensitive to numerical approximations whereas BPM results practically do not depend on grid size and longitudinal step size. Effect of coupling-region-width and core-width variations on critical power and coupling length is studied using BPM to look at the aspects of optical power-switch design.

APA, Harvard, Vancouver, ISO, and other styles

13

Rangel, J., R. Gonzalez, E. Gonzalez, L. Rea, T. Lara, and J. Zaragoza. "A Numerical Procedure for Coupled Consolidation in Saturated Soils." British Journal of Applied Science & Technology 18, no. 2 (January 10, 2016): 1–12. http://dx.doi.org/10.9734/bjast/2016/30219.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Rudge, M. R. H. "A variational correction procedure for solving coupled differential equations." Journal of Physics A: Mathematical and General 18, no. 10 (July 11, 1985): 1657–63. http://dx.doi.org/10.1088/0305-4470/18/10/020.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Countryman, M., and R. Kannan. "Nonlinear Forced Vibrations of Beams." Journal of Applied Mechanics 52, no. 1 (March 1, 1985): 163–66. http://dx.doi.org/10.1115/1.3168988.

Full text

Abstract:

An iterative procedure for computing periodic solutions of nonlinear vibrating beams is presented. The nonlinear partial differential equation is replaced by a coupled system of equations. The contraction mapping principle is then applied to generate a method of successive approximations. The coupled equations are then approximated by discrete equations that are solved by matrix-theoretic techniques and numerical quadrature procedures. Some numerical examples are provided to illustrate the method.

APA, Harvard, Vancouver, ISO, and other styles

16

Rusovici, Razvan, Casey Offord, and Charles Phelps. "A Coupled Field Finite Element Modeling Procedure for Design of a Synthetic-Jet Actuators." Journal of Intelligent Material Systems and Structures 22, no. 2 (January 2011): 161–73. http://dx.doi.org/10.1177/1045389x10395644.

Full text

Abstract:

The development and validation of a modeling procedure used for design of piezoceramic-driven, SJAs, which is based on ANSYSTM FE software, is described. This approach holds the advantage over others in that it fully couples the complex physical interactions among the structure of the actuator, the working fluid, and the driving piezoelectric actuation. The procedure employed was two FEMs: one used a fully coupled acoustic-structural-piezoelectric, while the other used a fully coupled fluid-structure-piezoelectric field formulation. The acoustic-structural-piezoelectric model was useful in that it was used to predict quickly the acoustic and structural resonant frequencies of the actuator device for rapid design. While the fluid-structural-piezoelectric model was more computationally expensive than the acoustic-structural-piezoelectric model, it was superior in that it provided insight into transient synthetic-jet output velocity time and spatial dependence, displacement, and structural stress time histories. This procedure allows investigation of actuator design and of fluid dynamics of synthetic-jets. The models’ predictions were compared to experimental data obtained for a sample actuator configuration and good agreement was found. Both FEMs were defined for an axisymmetric, single-diaphragm piezoelectric actuator, but the procedure may be extended to other actuator geometries.

APA, Harvard, Vancouver, ISO, and other styles

17

Liu, Jing Fang, Xiao Ou Huang, Yue Qing Yu, and Zhen Huang. "New Procedure for Constraint Determination in Mobility Analysis for Classical Coupled Linkages." Applied Mechanics and Materials 281 (January 2013): 230–33. http://dx.doi.org/10.4028/www.scientific.net/amm.281.230.

Full text

Abstract:

A coupled mechanism is different from common parallel mechanism with independent limbs, so it is impossible to analyze the constraint and mobility by the traditional method based on screw theory. To overcome this problem, this paper proposes a new procedure to determine the overconstraint for coupled mechanisms based on screw theory, where a coupled mechanism is decomposed into several basic elements. The validity of the new procedure is further proved from the constraint and mobility analysis for a classical mechanism.

APA, Harvard, Vancouver, ISO, and other styles

18

Wang, Sheng-Nan, and Juan Hu. "Grammian solutions for a (2+1)-dimensional integrable coupled modified Date–Jimbo–Kashiwara–Miwa equation." Modern Physics Letters B 33, no. 10 (April 10, 2019): 1950119. http://dx.doi.org/10.1142/s0217984919501197.

Full text

Abstract:

In this paper, Grammian solutions to a (2[Formula: see text]+[Formula: see text]1)-dimensional modified Date–Jimbo–Kashiwara–Miwa (mDJKM) equation are presented by using Hirota bilinear method and perturbation expansion. Starting from the Grammian solutions, an integrable coupled mDJKM equation is then obtained and the corresponding Grammian solutions are first derived by utilizing the source generation procedure. Besides, we also construct and solve a coupled DJKM equation via source generation procedure. It is interesting that the coupled mDJKM system constitute a bilinear Bäcklund transformation for the coupled DJKM system. This means that the commutativity of source generation procedure and Bäcklund transformation is valid for the (2[Formula: see text]+[Formula: see text]1)-dimensional DJKM equation.

APA, Harvard, Vancouver, ISO, and other styles

19

Cui, Guolong, Lingjiang Kong, Wei Yi, Bailu Wang, and Xiaobo Yang. "Coupled sequential detection and estimation procedure for track‐before‐detect." IET Radar, Sonar & Navigation 10, no. 7 (August 2016): 1168–77. http://dx.doi.org/10.1049/iet-rsn.2015.0347.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Petrareanu, Georgiana, Mihaela Balasu, and Stefan Szedlacsek. "Enzyme-coupled procedure for xylose conversion into biotechnologically important intermediates." Journal of Biotechnology 131, no. 2 (September 2007): S27. http://dx.doi.org/10.1016/j.jbiotec.2007.07.044.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Saetta, Anna V., and Renato V. Vitaliani. "Unconditionally convergent partitioned solution procedure for dynamic coupled mechanical systems." International Journal for Numerical Methods in Engineering 33, no. 9 (June 30, 1992): 1975–96. http://dx.doi.org/10.1002/nme.1620330913.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

PREVOST, JEAN H. "PARTITIONED SOLUTION PROCEDURE FOR SIMULTANEOUS INTEGRATION OF COUPLED-FIELD PROBLEMS." Communications in Numerical Methods in Engineering 13, no. 4 (April 1997): 239–47. http://dx.doi.org/10.1002/(sici)1099-0887(199704)13:4<239::aid-cnm51>3.0.co;2-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Koufogiannidis, Ar, and K. Siakavara. "Coupled microstrip filters on multilayered dielectric media." Canadian Journal of Physics 80, no. 6 (June 1, 2002): 675–85. http://dx.doi.org/10.1139/p02-008.

Full text

Abstract:

The work presented in this paper is an attempt to design filters with coupled microstrip lines on multilayered dielectric media using methods employed in other applications. A procedure was formulated for designing filters with the desired frequency response and smaller size using insertion loss method combined with the theory of multiconductor transmission lines. The frequency response was verified by considering that the filters act as cascaded four-port networks. The results were in a very good agreement with those expected from the theoretically design procedure. PACS No.: 84.40D

APA, Harvard, Vancouver, ISO, and other styles

24

McNabb, A. "An uncoupling procedure for a class of coupled linear partial differential equations." Journal of the Australian Mathematical Society. Series B. Applied Mathematics 26, no. 4 (April 1985): 503–16. http://dx.doi.org/10.1017/s0334270000004689.

Full text

Abstract:

AbstractA Fredholm operator exists which maps the solutions of a system of linear partial differential equations of the form ∂u/∂t = DLu + Au coupled by a matrix A onto those solutions of a similar system coupled by a matrix B which have the same initial values. The kernels of this operator satisfy a hyperbolic system of equations. Since these equations are independent of the linear partial differential operator L, the same operator serves as a mapping for a large class of equations. If B is chosen diagonal, the solutions of a coupled system with matrix A may be obtained from the uncoupled system with matrix B.

APA, Harvard, Vancouver, ISO, and other styles

25

FATIBENE, L., M. FRANCAVIGLIA, and S. MERCADANTE. "MATTER LAGRANGIANS COUPLED WITH CONNECTIONS." International Journal of Geometric Methods in Modern Physics 07, no. 07 (November 2010): 1185–89. http://dx.doi.org/10.1142/s0219887810004798.

Full text

Abstract:

We shall consider here extended theories of gravitation in the metric-affine formalism with matter coupled directly to the connection. A sufficiently general procedure will be exhibited to solve the resulting field equation associated to the connection. As special cases one has the no-coupling case (which is standard in f(R) literature) as well as the cases already analyzed in [1].

APA, Harvard, Vancouver, ISO, and other styles

26

Casalino, Lorenzo, Francesca Letizia, and Dario Pastrone. "Optimization of Hybrid Upper-Stage Motor with Coupled Evolutionary/Indirect Procedure." Journal of Propulsion and Power 30, no. 5 (September 2014): 1390–98. http://dx.doi.org/10.2514/1.b35111.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Persson, A., L. Larsson, and C. Finnsgård. "An Improved Procedure for Strongly Coupled Prediction of Sailing Yacht Performance." Journal of Sailing Technology 6, no. 01 (July 12, 2021): 133–50. http://dx.doi.org/10.5957/jst/2021.6.1.133.

Full text

Abstract:

Abstract In this paper, an improved procedure for strongly coupled prediction of sailing yacht performance is developed. The procedure uses 3D RANS CFD to compute the hydrodynamic forces. When coupled to a rigid body motion solver and a sail force model, along with a rudder control algorithm, this allows sailing yacht performance to be predicted within CFD software. The procedure provides improved convergence when compared to a previously published method. The grid motion scheme, partially using overset grid techniques, means that correct alignment between the free surface and the background grid is ensured even at large heel angles. The capabilities are demonstrated with performance predictions for the SYRF 14 m yacht, at one true wind speed, over a range of true wind angles, with up- and downwind sailsets. The results are compared to predictions from the ORC-VPP for a yacht with similar main particulars.

APA, Harvard, Vancouver, ISO, and other styles

28

Werby, Michael F., and Natalia A. Sidorovskaia. "Flux‐transfer amplitudes and the one‐way coupled normal mode procedure." Journal of the Acoustical Society of America 102, no. 5 (November 1997): 3150. http://dx.doi.org/10.1121/1.420710.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Hollister, P. D., and Raymund C. Jones. "The use of a variational procedure in studying coupled dielectric waveguides." Journal of Physics A: Mathematical and General 34, no. 39 (September 21, 2001): 7941–67. http://dx.doi.org/10.1088/0305-4470/34/39/303.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Stanković, S., R. Jones, J. Heck, M. Sysak, D. Van Thourhout, and G. Roelkens. "Die-to-Die Adhesive Bonding Procedure for Evanescently-Coupled Photonic Devices." Electrochemical and Solid-State Letters 14, no. 8 (2011): H326. http://dx.doi.org/10.1149/1.3592267.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Liu, Xuezong, and R. H. Pletcher. "A COUPLED MARCHING PROCEDURE FOR THE PARTIALLY PARABOLIZED NAVIER-STOKES EQUATIONS." Numerical Heat Transfer 10, no. 6 (December 1986): 539–56. http://dx.doi.org/10.1080/10407788608913534.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Liu, Xuezong, and R. H. Pletcher. "A Coupled Marching Procedure for the Partially Parabolized Navier-Stokes Equations." Numerical Heat Transfer, Part B: Fundamentals 10, no. 6 (1986): 539–56. http://dx.doi.org/10.1080/10407798608552523.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Chacón Rebollo, Tomas, Stéphane Del Pino, and Driss Yakoubi. "An iterative procedure to solve a coupled two-fluids turbulence model." ESAIM: Mathematical Modelling and Numerical Analysis 44, no. 4 (February 23, 2010): 693–713. http://dx.doi.org/10.1051/m2an/2010015.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

de Sterke, C. Martijn, Kenneth R. Jackson, and B. D. Robert. "Nonlinear coupled-mode equations on a finite interval: a numerical procedure." Journal of the Optical Society of America B 8, no. 2 (February 1, 1991): 403. http://dx.doi.org/10.1364/josab.8.000403.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Krenz, Peter M. "Alignment procedure for radiation pattern measurements of antenna-coupled infrared detectors." Optical Engineering 49, no. 3 (March 1, 2010): 033607. http://dx.doi.org/10.1117/1.3365959.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

D'Urso, Gianluca, Michela Longo, Elisabetta Ceretti, and Claudio Giardini. "Coupled Simulative-Experimental Procedure for Studying the Solid State Bonding Phenomena." Key Engineering Materials 491 (September 2011): 181–88. http://dx.doi.org/10.4028/www.scientific.net/kem.491.181.

Full text

Abstract:

In extrusion operations, material solid state welding takes place thanks to the very high pressure and temperature at which the material undergoes between the several welding criteria developed, the attention was particularly focused on the Piwnik and Plata one. In this criterion a suitable parameter w, calculated as the interface pressure and the effective stress ratio integrated along the time, has been defined. According to this criterion the material should start to weld as this parameter exceed a limit value wlim. In the present paper a new procedure for the wlim identification as function of the temperature, based on coupled experimental-simulative strategy, is proposed. In particular, flat rolling experimental tests of sandwiches made of two rectangular specimens in AA6082 alloy were performed. The specimens were characterized by different heights in order to consider different compression ratio, that means different interface pressure and effective stress distributions. All the tests were repeated at different temperature. Once the experimental tests were performed, FEM simulations of the rolling process were run for the very same conditions. Thanks to a suitable user routine developed and implemented in the calculus code, it was possible to evaluate the steady state value of the w parameter for all the different conditions at the steady state conditions. By verifying if the actual experimental test demonstrated the presence or less of material bonding, it was possible to identify the wlim values as function of the temperature. Particular attention must be paid to the study of the macrostructure of the welded material in order to identify the influence of the process parameter on the weld quality. This means that it is possible to identify not only if the weld will take place, but also if it will be qualitatively adequate.

APA, Harvard, Vancouver, ISO, and other styles

37

Pakdemirli, Mehmet. "A general solution procedure for coupled systems with arbitrary internal resonances." Mechanics Research Communications 28, no. 6 (November 2001): 617–22. http://dx.doi.org/10.1016/s0093-6413(02)00213-6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Soyama, Kokichi, and Etsuko Ono. "Improved procedure for determining serum d-arabinitol by resazurin-coupled method." Clinica Chimica Acta 168, no. 2 (September 1987): 259–60. http://dx.doi.org/10.1016/0009-8981(87)90297-x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Keip, Marc-André, and Jörg Schröder. "Aspects of a direct homogenization procedure for electro-mechanically coupled problems." PAMM 8, no. 1 (December 2008): 10433–34. http://dx.doi.org/10.1002/pamm.200810433.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Chandrasekar, V. K., M. Senthilvelan, and M. Lakshmanan. "On the complete integrability and linearization of nonlinear ordinary differential equations. III. Coupled first-order equations." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 465, no. 2102 (November 11, 2008): 585–608. http://dx.doi.org/10.1098/rspa.2008.0239.

Full text

Abstract:

Continuing our study on the complete integrability of nonlinear ordinary differential equations (ODEs), in this paper we consider the integrability of a system of coupled first-order nonlinear ODEs of both autonomous and non-autonomous types. For this purpose, we modify the original Prelle–Singer (PS) procedure so as to apply it to both autonomous and non-autonomous systems of coupled first-order ODEs. We briefly explain the method of finding integrals of motion (time-independent as well as time-dependent integrals) for two and three coupled first-order ODEs by extending the PS method. From this we try to answer some of the open questions in the original PS method. We also identify integrable cases for the two-dimensional Lotka–Volterra system and three-dimensional Rössler system as well as other examples including non-autonomous systems in a straightforward way using this procedure. Finally, we develop a linearization procedure for coupled first-order ODEs.

APA, Harvard, Vancouver, ISO, and other styles

41

Li, M. G., and M. M. Madappally. "Rapid enzymatic determination of urinary oxalate." Clinical Chemistry 35, no. 12 (December 1, 1989): 2330–33. http://dx.doi.org/10.1093/clinchem/35.12.2330.

Full text

Abstract:

Abstract This new reagent kit for the quantitative measurement of oxalate in urine is a modification of an earlier Sigma oxalate assay procedure (procedure no. 590), a coupled enzyme assay involving oxalate oxidase and horseradish peroxidase. The new analytical procedure includes methods for processing urine specimens to eliminate interference with oxalate color development at 590 nm by ascorbic acid, divalent cations, and other urinary constituents. The reaction is complete in less than 5 min, and results are linearly related to oxalate concentration up to at least 1 mmol/L. Assay sensitivity and within-run and between-run precision were within the limits acceptable for other urinary oxalate procedures. Analytical recovery of added oxalate was close to 100%. This specific, simple, rapid procedure is suitable for routine clinical use.

APA, Harvard, Vancouver, ISO, and other styles

42

El Amri, Abdelouahid, M. El Yakhloufi Haddou, and A. Khamlichi. "Thermal-Mechanical Coupled Manufacturing Simulation in Heterogeneous Materials." Civil Engineering Journal 2, no. 11 (November 30, 2016): 600–606. http://dx.doi.org/10.28991/cej-2016-00000062.

Full text

Abstract:

This work is aimed to investigate on thermal and thermo-mechanical behaviour of 6061 Aluminium alloy. The main target of the present investigation is to apply a numerical procedure to assess the thermo-mechanical damage. Finite element analyses of the notched tensile specimens at high temperature have been carried out using ABAQUS Software. The objective was to study the combined effects of thermal and mechanical loads on the strength and ductility of the material. The performance of the proposed model is in general good and it is believed that the presented results and experimental–numerical calibration procedure can be used in practical finite-element simulation.

APA, Harvard, Vancouver, ISO, and other styles

43

DiCarlofelice, Alessandro, Emidio DiGiampaolo, and Piero Tognolatti. "A Numerical Procedure to Design a UWB Aperture-Coupled Microstrip Antenna Suitable for Space Applications." Applied Sciences 12, no. 21 (November 6, 2022): 11243. http://dx.doi.org/10.3390/app122111243.

Full text

Abstract:

In this paper, we show a dual-polarized ultra-wideband aperture-coupled microstrip antennae (ACMA) to be used in space missions such as CubeSat Ka-band applications. We also report the specific developed design procedure, which is distinguished from other design procedures by minimizing the complexity of construction, since it utilizes a simple multilayer structure without interlayer interconnections or inclusions. This design procedure develops an architecture for ACMA with the main objective of minimizing costs in large-scale production. The design starts from assigned specifications in terms of fractional bandwidth constrained to be larger than 40%, return loss better than 10 dB, and polarization purity and polarization isolation better than 25 dB, using materials with adequate ohmic and dielectric losses. A frequency-scaled prototype has been also designed, realized, and measured. Good agreement between the simulation and measurement results has been obtained.

APA, Harvard, Vancouver, ISO, and other styles

44

Ertas, Bugra, and John Vance. "The Influence of Same-Sign Cross-Coupled Stiffness on Rotordynamics." Journal of Vibration and Acoustics 129, no. 1 (June 3, 2006): 24–31. http://dx.doi.org/10.1115/1.2346690.

Full text

Abstract:

The following paper focuses on same-sign stiffness cross coupling from several viewpoints. First, the influence on rotordynamics is analyzed and discussed, followed by a discussion of how past experiments measuring cross-coupled forces on rotating components may have been in error due to an incomplete testing procedure. Finally, experimental tests are presented on a partitioned damper seal and the correct and complete experimental procedure for determining cross-coupled coefficients is described.

APA, Harvard, Vancouver, ISO, and other styles

45

Lan, Sheng, Kouichi Akahane, Kee-Youn Jang, Takahiro Kawamura, Yoshitaka Okada, and Mitsuo Kawabe. "The Procedure to Realize Two-Dimensional Quantum Dot Superlattices: From Incoherently Coupled to Coherently Coupled Quantum Dot Arrays." Japanese Journal of Applied Physics 38, Part 1, No. 2B (February 28, 1999): 1090–93. http://dx.doi.org/10.1143/jjap.38.1090.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Kraus, Pavel, Juraj Úradníček, Miloš Musil, and Michal Bachratý. "Effective Thermo-Structural Analysis for Disc Brake System Simulation." Strojnícky casopis – Journal of Mechanical Engineering 68, no. 2 (November 1, 2018): 125–30. http://dx.doi.org/10.2478/scjme-2018-0022.

Full text

Abstract:

AbstractThe evaluation of disk brake squeal is nowadays performed using Finite Element Model. In this standard procedure the thermal effects are omitted. The omission is done because of long computing time of fully coupled brake system thermo-structural transient analysis. This paper is presenting an effective uncoupled thermo-structural FEM procedure. This method is applied on a pin-on-disc system and its time effectiveness is compared to standard full coupled transient analysis.

APA, Harvard, Vancouver, ISO, and other styles

47

ZHAO, BAISHAN, and WAI-KAI CHEN. "DESIGN OF CROSS-COUPLED RESONATOR FILTERS WITH PARALLEL RESONANCE CIRCUITS." Journal of Circuits, Systems and Computers 16, no. 04 (August 2007): 589–602. http://dx.doi.org/10.1142/s0218126607003836.

Full text

Abstract:

A method to design a cross-coupled resonator filter with parallel resonance circuits is presented, which includes the selection of a circuit model, introduces a scaling factor and a bandwidth condition, and calculates the values of the coupling and resonance admittances of the circuit model by a coupling matrix derived from the given transfer function. Finally, an example is given to illustrate the design procedure. The simulation results validate the proposed design procedure.

APA, Harvard, Vancouver, ISO, and other styles

48

LAHIRI, AMITABHA. "CONSTRAINED DYNAMICS OF THE COUPLED ABELIAN TWO-FORM." Modern Physics Letters A 08, no. 25 (August 20, 1993): 2403–12. http://dx.doi.org/10.1142/s021773239300369x.

Full text

Abstract:

I present the reduction of phase space of the theory of an antisymmetric tensor potential coupled to an Abelian gauge field, using Dirac's procedure. Duality transformations on the reduced phase space are also discussed.

APA, Harvard, Vancouver, ISO, and other styles

49

Jin, Zhaoyang Larry, Timur Garipov, Oleg Volkov, and Louis J. Durlofsky. "Reduced-Order Modeling of Coupled Flow and Quasistatic Geomechanics." SPE Journal 25, no. 01 (November 6, 2019): 326–46. http://dx.doi.org/10.2118/193863-pa.

Full text

Abstract:

Summary A reduced-order-modeling (ROM) framework is developed and applied to simulate coupled flow/quasistatic-geomechanics problems. The reduced-order model is constructed using POD-TPWL, in which proper orthogonal decomposition (POD), which enables representation of the solution unknowns in a low-dimensional subspace, is combined with trajectory-piecewise linearization (TPWL), where solutions with new sets of well controls are represented by means of linearization around previously simulated (training) solutions. The overdetermined system of equations is projected into the low-dimensional subspace using a least-squares Petrov-Galerkin (LSPG) procedure, which has been shown to maintain numerical stability in POD-TPWL models. The states and derivative matrices required by POD-TPWL, generated by an extended version of the Stanford University Automatic Differentiation General Purpose Research Simulator (AD-GPRS), are provided in an offline (preprocessing or training) step. Offline computational requirements correspond to the equivalent of five to eight full-order simulations, depending on the number of training runs used. Run-time (online) speedups of O(100) or more are typically achieved for new POD-TPWL test-case simulations. The POD-TPWL model is tested extensively for a 2D coupled problem involving oil/water flow and geomechanics. It is shown that POD-TPWL provides predictions of reasonable accuracy, relative to full-order simulations, for well-rate quantities, global pressure and saturation fields, global maximum- and minimum-principal-stress fields, and the Mohr-Coulomb rock-failure criterion, for the cases considered. A systematic study of POD-TPWL error is conducted using various training procedures for different levels of perturbation between test and training cases. The use of randomness in the well-bottomhole-pressure (BHP) profiles used in training is shown to be beneficial in terms of POD-TPWL solution accuracy. The procedure is also successfully applied to a prototype 3D example case.

APA, Harvard, Vancouver, ISO, and other styles

50

Di Barba, Paolo, Fabrizio Dughiero, and Elisabetta Sieni. "Field synthesis for the optimal treatment planning in Magnetic Fluid Hyperthermia." Archives of Electrical Engineering 61, no. 1 (January 1, 2012): 57–67. http://dx.doi.org/10.2478/v10171-012-0005-3.

Full text

Abstract:

Field synthesis for the optimal treatment planning in Magnetic Fluid HyperthermiaAn automated procedure based on evolutionary computation and Finite Element Analysis (FEA) is proposed to synthesize the optimal distribution of nanoparticles (NPs) in multi-site injection for a Magnetic Fluid Hyperthermia (MFH) therapy. Evolution Strategy and Non dominated Sorting Genetic Algorithm (NSGA) are used as optimization procedures coupled with a Finite Element computation tool.

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!