Journal articles: 'Interface method'

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SOU, Akira, Kosuke HAYASHI, and Akio TOMIYAMA. "Interface Tracking Method based on Simplified Interface Reconstruction Method." Proceedings of The Computational Mechanics Conference 2003.16 (2003): 111–12. http://dx.doi.org/10.1299/jsmecmd.2003.16.111.

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Sakulin, Sergey, Alexander Alfimtsev, Evgeny Tipsin, Vladimir Devyatkov, and Dmitry Sokolov. "User Interface Distribution Method Based on Pi-Calculus." International Journal of Distributed Systems and Technologies 10, no. 3 (July 2019): 1–20. http://dx.doi.org/10.4018/ijdst.2019070101.

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The rapid growth of computing devices has led to the emergence of distributed user interfaces. A user interface is called distributed if a user can interact with it using several devices at the same time. Formal methods for designing such interfaces, in particular methods for the distribution of interface elements across multiple devices, are yet to be developed. This is the reason why every time a new application requires a distributed user interface, the latter has to be designed from scratch, rendering the entire venture economically inefficient. In order to minimize costs, unify and automate the development of distributed interfaces, we need to formulate general formal methods for designing distributed interfaces that will be independent from a particular application or device. This article paper proposes a formal distribution method based on the pi-calculus.

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Tan, Zhijun, D. V. Le, K. M. Lim, and B. C. Khoo. "An Immersed Interface Method for the Simulation of Inextensible Interfaces in Viscous Fluids." Communications in Computational Physics 11, no. 3 (March 2012): 925–50. http://dx.doi.org/10.4208/cicp.200110.040511a.

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AbstractIn this paper, an immersed interface method is presented to simulate the dynamics of inextensible interfaces in an incompressible flow. The tension is introduced as an augmented variable to satisfy the constraint of interface inextensibility and the resulting augmented system is solved by the GMRES method. In this work, the arclength of the interface is locally and globally conserved as the enclosed region undergoes deformation. The forces at the interface are calculated from the configuration of the interface and the computed augmented variable, and then applied to the fluid through the related jump conditions. The governing equations are discretized on a MAC grid via a second-order finite difference scheme which incorporates jump contributions and solved by the conjugate gradient Uzawa-type method. The proposed method is applied to several examples including the deformation of a liquid capsule with inextensible interfaces in a shear flow. Numerical results reveal that both the area enclosed by interface and arclength of interface are conserved well simultaneously. These provide further evidence on the capability of the present method to simulate incompressible flows involving inextensible interfaces.

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Nandan, Shambhavi, Christophe Fochesato, Mathieu Peybernes, Renaud Motte, and Florian De Vuyst. "Sharp Interface Capturing in Compressible Multi-Material Flows with a Diffuse Interface Method." Applied Sciences 11, no. 24 (December 19, 2021): 12107. http://dx.doi.org/10.3390/app112412107.

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Compressible multi-materialflows are encountered in a wide range of natural phenomena and industrial applications, such as supernova explosions in space, high speed flows in jet and rocket propulsion, underwater explosions, and vapor explosions in post accidental situations in nuclear reactors. In the numerical simulations of these flows, interfaces play a crucial role. A poor numerical resolution of the interfaces could make it difficult to account for the physics, such as material separation, location of the shocks and contact discontinuities, and transfer of the mass, momentum and heat between different materials/phases. Owing to such importance, sharp interface capturing remains an active area of research in the field of computational physics. To address this problem in this paper we focus on the Interface Capturing (IC) strategy, and thus we make use of a newly developed Diffuse Interface Method (DIM) called Multidimensional Limiting Process-Upper Bound (MLP-UB). Our analysis shows that this method is easy to implement, can deal with any number of material interfaces, and produces sharp, shape-preserving interfaces, along with their accurate interaction with the shocks. Numerical experiments show good results even with the use of coarse meshes.

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Li, Xiangyang, Jianjun Ding, Pujing Chen, Kang Zheng, Lin Chen, and Xingyou Tian. "A new Fourier transformation method for SAXS of polymer lamellar crystals." CrystEngComm 22, no. 17 (2020): 3042–58. http://dx.doi.org/10.1039/d0ce00157k.

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The interface distribution function is composed mainly of the self-interference item of the first interface F₁₁, the interference term of the first and the second interfaces F₁₂, and the interference term of the first and the third interfaces F₁₃.

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Kiyohara, Shin, Hiromi Oda, Tomohiro Miyata, and Teruyasu Mizoguchi. "Prediction of interface structures and energies via virtual screening." Science Advances 2, no. 11 (November 2016): e1600746. http://dx.doi.org/10.1126/sciadv.1600746.

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Interfaces markedly affect the properties of materials because of differences in their atomic configurations. Determining the atomic structure of the interface is therefore one of the most significant tasks in materials research. However, determining the interface structure usually requires extensive computation. If the interface structure could be efficiently predicted, our understanding of the mechanisms that give rise to the interface properties would be significantly facilitated, and this would pave the way for the design of material interfaces. Using a virtual screening method based on machine learning, we demonstrate a powerful technique to determine interface energies and structures. On the basis of the results obtained by a nonlinear regression using training data from 4 interfaces, structures and energies for 13 other interfaces were predicted. Our method achieved an efficiency that is more than several hundred to several tens of thousand times higher than that of the previously reported methods. Because the present method uses geometrical factors, such as bond length and atomic density, as descriptors for the regression analysis, the method presented here is robust and general and is expected to be beneficial to understanding the nature of any interface.

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Lu, Haitian, Ning Zhao, and Donghong Wang. "A Front Tracking Method for the Simulation of Compressible Multimedium Flows." Communications in Computational Physics 19, no. 1 (January 2016): 124–42. http://dx.doi.org/10.4208/cicp.260314.310315a.

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AbstractA front tracking method combined with the real ghost fluid method (RGFM) is proposed for simulations of fluid interfaces in two-dimensional compressible flows. In this paper the Riemann problem is constructed along the normal direction of interface and the corresponding Riemann solutions are used to track fluid interfaces. The interface boundary conditions are defined by the RGFM, and the fluid interfaces are explicitly tracked by several connected marker points. The Riemann solutions are also used directly to update the flow states on both sides of the interface in the RGFM. In order to validate the accuracy and capacity of the new method, extensive numerical tests including the bubble advection, the Sod tube, the shock-bubble interaction, the Richtmyer-Meshkov instability and the gas-water interface, are simulated by using the Euler equations. The computational results are also compared with earlier computational studies and it shows good agreements including the compressible gas-water system with large density differences.

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Lyman, C. E., R. Anderson, and T. Malis. "Thin-specimen preparation for heterophase interfaces." Proceedings, annual meeting, Electron Microscopy Society of America 51 (August 1, 1993): 838–39. http://dx.doi.org/10.1017/s0424820100150022.

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Imaging and analysis of heterophase interfaces in cross-sectional view requires demanding thin specimen preparation techniques. The term heterophase refers to the juxtaposition of a heavy and a light element or a metal and an insulator on either side of the interface. No single thinning method can be recommended for all such interfaces in all materials. In fact, the desired information might, of necessity, only be obtained by the use of several methods. This paper provides an overview of three different thinning methods for heterophase interfaces: conventional ion-beam thinning (IBT), tripod polishing (TP), and ultramicrotomy (UM).The ideal thin specimen of a heterophase interface is rarely achieved. Regardless of the final thinning method, the information obtainable often depends on the mechanical alignment of the interface prior to final thinning. Typical alignment parameters are: 1) angle between interface and specimen surface, 2) crystallographic orientation about the normal to the interface, and 3) lateral location of thinned area along interface.

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Zhao, LanHao, Kailong Mu, Jia Mao, Khuc Hongvan, and Dawei Peng. "A three-dimensional one-layer particle level set method." International Journal of Numerical Methods for Heat & Fluid Flow 30, no. 7 (November 14, 2019): 3653–84. http://dx.doi.org/10.1108/hff-07-2019-0547.

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Purpose Moving interface problems exist commonly in nature and industry, and the main difficulty is to represent the interface. The purpose of this paper is to capture the accurate interface, a novel three-dimensional one-layer particle level set (OPLS) method is presented by introducing Lagrangian particles to reconstruct the seriously distorted level set function. Design/methodology/approach First, the interface is captured by the level set method. Then, the interface is corrected with only one-layer particles advected with the flow to ensure that the level set function value of the particle is equal to 0. When interfaces are merged, all particles in merged regions are deleted, while the added particles near the generated interface are used to determine the interface as the interface is separated. Findings The OPLS method is validated with well-known benchmark examples, such as the long-term advection of a sphere, the rotation of a three-dimensional slotted disk and sphere, single vortex in a box, sphere merging and separation, deformation of a sphere. The simulation results indicate that the proposed method is found to be highly reliable and accurate. Originality/value This method exhibits excellent conservation of the area bounded by the interface. The extraordinary performance is also shown in dealing with complex interface topological changes.

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Li, Chuan, Guangqing Long, Yiquan Li, and Shan Zhao. "Alternating Direction Implicit (ADI) Methods for Solving Two-Dimensional Parabolic Interface Problems with Variable Coefficients." Computation 9, no. 7 (July 17, 2021): 79. http://dx.doi.org/10.3390/computation9070079.

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The matched interface and boundary method (MIB) and ghost fluid method (GFM) are two well-known methods for solving elliptic interface problems. Moreover, they can be coupled with efficient time advancing methods, such as the alternating direction implicit (ADI) methods, for solving time-dependent partial differential equations (PDEs) with interfaces. However, to our best knowledge, all existing interface ADI methods for solving parabolic interface problems concern only constant coefficient PDEs, and no efficient and accurate ADI method has been developed for variable coefficient PDEs. In this work, we propose to incorporate the MIB and GFM in the framework of the ADI methods for generalized methods to solve two-dimensional parabolic interface problems with variable coefficients. Various numerical tests are conducted to investigate the accuracy, efficiency, and stability of the proposed methods. Both the semi-implicit MIB-ADI and fully-implicit GFM-ADI methods can recover the accuracy reduction near interfaces while maintaining the ADI efficiency. In summary, the GFM-ADI is found to be more stable as a fully-implicit time integration method, while the MIB-ADI is found to be more accurate with higher spatial and temporal convergence rates.

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Chern, I.-Liang, and Yu-Chen Shu. "A coupling interface method for elliptic interface problems." Journal of Computational Physics 225, no. 2 (August 2007): 2138–74. http://dx.doi.org/10.1016/j.jcp.2007.03.012.

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Li, Xian Xiang, Shou Zhen Jiang, Xiao Bo Hu, Jie Dong, Juan Li, Xiu Fang Chen, Li Wang, Xian Gang Xu, and Min Hua Jiang. "Polytype Control in 6H-SiC Grown via Sublimation Method." Materials Science Forum 527-529 (October 2006): 95–98. http://dx.doi.org/10.4028/www.scientific.net/msf.527-529.95.

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6H-SiC ingots were grown with different growth interfaces at different rates via the sublimation method. A model for the step flow growth mechanism is proposed to interpret the occurrence of 15R-SiC inclusions in the 6H-SiC single crystal. The results show that the 15R-SiC occurs more easily on the convex and the concave interface than on the slight convex interface and 15R-SiC inclusion also occurs when the growth rate of 6H-SiC exceeds the critical rate of 300 %m/h with the slight convex interface at the seed temperature 2250°C.

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Zhang, Y. D., C. Esling, X. Zhao, and L. Zuo. "Indirect two-trace method to determine a faceted low-energy interface between two crystallographically correlated crystals." Journal of Applied Crystallography 40, no. 3 (May 15, 2007): 436–40. http://dx.doi.org/10.1107/s0021889807014331.

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An indirect two-trace method to determine interfaces between two crystals with a uniquely defined interface plane is proposed. It involves preparation of only one sample surface, instead of the two perpendicular sample surfaces required by the traditional two-trace method. By making use of two independent interface trace vectors from one uniquely defined interface and the orientations of their adjacent crystals, the interface plane normal and thus the interface plane in the two correlated crystal systems can be determined through numerical calculations concerning coordinate system change. The new method is widely applicable to identify any uniquely defined and reproducible interfaces between crystallographically correlated crystals, even slip systems, provided that they are microscopically visible and crystallographically of the same nature. It can simplify the experimental procedure, increase the determination accuracy and broaden the scope of interface studies.

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Kotval, Xerxes P., and Joseph H. Goldberg. "Eye Movements and Interface Component Grouping: An Evaluation Method." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 42, no. 5 (October 1998): 486–90. http://dx.doi.org/10.1177/154193129804200509.

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Evaluation of the computer interface is traditionally conducted via checklists, task scenarios, walkthroughs, heuristics and other subjective techniques. Analysis of user's eye movements during user interaction can add more objectivity to these evaluations. The objective of this study was to determine if eye movement behavior is influenced by interface design quality in a manner that can be characterized and used to identify design weaknesses. Eye movement scanpaths were collected from 12 subjects interacting with 4 interfaces utilizing different component grouping strategies. Interface quality ranged from “excellent” to “unacceptable”, as assessed by 50 typical users and 30 interface designers. A series of quantifiable measures were developed to characterize the resulting scanpaths. These measures examined raw scanpath data, fixations and saccades, and their interaction on both a temporal and spatial basis. The measures proved to be good indicators of interface quality. The “good” grouping strategy resulted in few fixations (minimal processing) and relatively efficient scanpath behavior (minimal search). The “poor” grouping strategies produced scattered scanpaths covering a larger portion of the interface area (extensive search) and requiring a higher number of fixations (more processing). The applicability of eye movement analysis as a quantitative interface evaluation method was further discussed.

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Wu, Xiaoli, and Yajun Li. "An Experimental Analysis Method of Visual Performance on the Error Factors of Digital Information Interface." International Journal of Pattern Recognition and Artificial Intelligence 34, no. 09 (December 20, 2019): 2055019. http://dx.doi.org/10.1142/s0218001420550198.

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As per global accident statistics, human error accounts for over 85% of accidents. Therefore, human error analysis of cognitive behavior of operators can be the key to solving information interface design problems of digital smart task monitoring interfaces. This paper proposes an analytical method based on psychological experiments introduced into task monitoring interfaces to study reactions to error factors. It uses psychological techniques to conduct experiments which evoke physiological reactions to various error factors under different sub-interfaces of the monitoring system and sub-task environments. The behavioral and eye tracking data demonstrate the association between the error factors and the information interface. Error factors arising in visual search are directly related to the layout of the task-interface, the information proximity–position, and the information features-volume. Our method opens up new approaches for design optimizations of visual information interfaces and introduces novel concepts for the introduction of interface design via error factor analysis.

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Hou, Songming, Zhilin Li, Liqun Wang, and Wei Wang. "A Numerical Method for Solving Elasticity Equations with Interfaces." Communications in Computational Physics 12, no. 2 (August 2012): 595–612. http://dx.doi.org/10.4208/cicp.160910.130711s.

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AbstractSolving elasticity equations with interfaces is a challenging problem for most existing methods. Nonetheless, it has wide applications in engineering and science. An accurate and efficient method is desired. In this paper, an efficient non-traditional finite element method with non-body-fitting grids is proposed to solve elasticity equations with interfaces. The main idea is to choose the test function basis to be the standard finite element basis independent of the interface and to choose the solution basis to be piecewise linear satisfying the jump conditions across the interface. The resulting linear system of equations is shown to be positive definite under certain assumptions. Numerical experiments show that this method is second order accurate in the L∞ norm for piecewise smooth solutions. More than 1.5th order accuracy is observed for solution with singularity (second derivative blows up) on the sharp-edged interface corner.

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Bai, Xiao, and Xiaolong Deng. "A Sharp Interface Method for Compressible Multi-Phase Flows Based on the Cut Cell and Ghost Fluid Methods." Advances in Applied Mathematics and Mechanics 9, no. 5 (July 11, 2017): 1052–75. http://dx.doi.org/10.4208/aamm.2015.m1283.

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AbstractA new sharp interface method with the combination of Ghost Fluid Method (GFM) and Cut Cell scheme is developed to study compressible multi-phase flows with clear interfaces. Straight-line cutting is applied on the cells passed by the interface. A new real-ghost mixing method is presented and applied around the cut cells to deal with very small cut cells. A cut face reconstruction method similar to volume of fluid is applied to deal with topological change problems. A high order Level Set (LS) method is applied to evolve the free interface, with the Level Set velocities from exact Riemann solver on the cut faces. Various 1D and 2D numerical examples are tested to show the robustness and ability of the present method in wide flow variable domains. This method benefits from cut cell on the sharp interface description, shows good conservation performance, and does not have the topological change difficulty of the full cut cell method presented in Chang, Deng & Theofanous, J. Comput. Phys., 242 (2013), pp. 946–990.

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Liu, Haiyan, Xiaomin Liu, and Zhenhua Xu. "Research on model component method based on OpenMI technology." E3S Web of Conferences 260 (2021): 03005. http://dx.doi.org/10.1051/e3sconf/202126003005.

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Open Model Interface (OpenMI) technology can construct standardized components with unified timing interface and standardized data interaction. This provides a standardized method for integrating multiple models with different interfaces and functions. This paper briefly introduces the operation principle of OpenMI technology and the process of model standardization, and describes the seven key steps of model transplantation by taking the one-dimensional hydraulic model of the Yellow River as an example.

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AUNG, ZEYAR, SOON-HENG TAN, SEE-KIONG NG, and KIAN-LEE TAN. "PPiClust: EFFICIENT CLUSTERING OF 3D PROTEIN–PROTEIN INTERACTION INTERFACES." Journal of Bioinformatics and Computational Biology 06, no. 03 (June 2008): 415–33. http://dx.doi.org/10.1142/s0219720008003485.

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The biological mechanisms through which proteins interact with one another are best revealed by studying the structural interfaces between interacting proteins. Protein–protein interfaces can be extracted from three-dimensional (3D) structural data of protein complexes and then clustered to derive biological insights. However, conventional protein interface clustering methods lack computational scalability and statistical support. In this work, we present a new method named "PPiClust" to systematically encode, cluster, and analyze similar 3D interface patterns in protein complexes efficiently. Experimental results showed that our method is effective in discovering visually consistent and statistically significant clusters of interfaces, and at the same time sufficiently time-efficient to be performed on a single computer. The interface clusters are also useful for uncovering the structural basis of protein interactions. Analysis of the resulting interface clusters revealed groups of structurally diverse proteins having similar interface patterns. We also found, in some of the interface clusters, the presence of well-known linear binding motifs which were noncontiguous in the primary sequences. These results suggest that PPiClust can discover not only statistically significant, but also biologically significant, protein interface clusters from protein complex structural data.

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Cisternino, Marco, and Lisl Weynans. "A Parallel Second Order Cartesian Method for Elliptic Interface Problems." Communications in Computational Physics 12, no. 5 (November 2012): 1562–87. http://dx.doi.org/10.4208/cicp.160311.090112a.

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AbstractWe present a parallel Cartesian method to solve elliptic problems with complex immersed interfaces. This method is based on a finite-difference scheme and is second-order accurate in the whole domain. The originality of the method lies in the use of additional unknowns located on the interface, allowing to express straightforwardly the interface transmission conditions. We describe the method and the details of its parallelization performed with the PETSc library. Then we present numerical validations in two dimensions, assorted with comparisons to other related methods, and a numerical study of the parallelized method.

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Wang, Bao, Kelin Xia, and Guo-Wei Wei. "Matched interface and boundary method for elasticity interface problems." Journal of Computational and Applied Mathematics 285 (September 2015): 203–25. http://dx.doi.org/10.1016/j.cam.2015.02.005.

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Zhang, Xu-jiu, Yong-sheng Zhu, Ke Yan, and You-yun Zhang. "A Front Tracking Method Based on Runge-Kutta Discontinuous Galerkin Methods." International Journal of Online Engineering (iJOE) 12, no. 12 (December 25, 2016): 67. http://dx.doi.org/10.3991/ijoe.v12i12.6453.

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In this paper, a high-resolution front tracking method was presented for interface tracking simulation with Runge-Kutta discontinuous Galerkin methods. An interface treating method of the discontinuous methods is presented. This method don’t construct the ghost fluid and the flow information on both sides next to the interface is used to solve the interfacial status. The limiter adopted the combination of the shock detection and monotonicity-preserving limiter and level set method is used for tracking the interface. Result shown that the front tracking of the high-order accurate Runge-Kutta discontinuous Galerkin method exhibits very good agreement with exact solution in the interface condition that contain strong shock.

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Wang, Liqun, Songming Hou, and Liwei Shi. "A Numerical Method for Solving 3D Elasticity Equations with Sharp-Edged Interfaces." International Journal of Partial Differential Equations 2013 (July 21, 2013): 1–13. http://dx.doi.org/10.1155/2013/476873.

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Interface problems occur frequently when two or more materials meet. Solving elasticity equations with sharp-edged interfaces in three dimensions is a very complicated and challenging problem for most existing methods. There are several difficulties: the coupled elliptic system, the matrix coefficients, the sharp-edged interface, and three dimensions. An accurate and efficient method is desired. In this paper, an efficient nontraditional finite element method with nonbody-fitting grids is proposed to solve elasticity equations with sharp-edged interfaces in three dimensions. The main idea is to choose the test function basis to be the standard finite element basis independent of the interface and to choose the solution basis to be piecewise linear satisfying the jump conditions across the interface. The resulting linear system of equations is shown to be positive definite under certain assumptions. Numerical experiments show that this method is second order accurate in the L∞ norm for piecewise smooth solutions. More than 1.5th order accuracy is observed for solution with singularity (second derivative blows up).

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Li, Bo, and John Shopple. "An Interface-Fitted Finite Element Level Set Method with Application to Solidification and Solvation." Communications in Computational Physics 10, no. 1 (July 2011): 32–56. http://dx.doi.org/10.4208/cicp.230510.240910a.

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AbstractA new finite element level set method is developed to simulate the interface motion. The normal velocity of the moving interface can depend on both the local geometry, such as the curvature, and the external force such as that due to the flux from both sides of the interface of a material whose concentration is governed by a diffusion equation. The key idea of the method is to use an interface-fitted finite element mesh. Such an approximation of the interface allows an accurate calculation of the solution to the diffusion equation. The interface-fitted mesh is constructed from a base mesh, a uniform finite element mesh, at each time step to explicitly locate the interface and separate regions defined by the interface. Several new level set techniques are developed in the framework of finite element methods. These include a simple finite element method for approximating the curvature, a new method for the extension of normal velocity, and a finite element least-squares method for the reinitialization of level set functions. Application of the method to the classical solidification problem captures the dendrites. The method is also applied to the molecular solvation to determine optimal solute-solvent interfaces of solvation systems.

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Feng, Biao, Bo Jin, Ri Qing Lan, and Hao Chen. "An Object-Oriented Framework for Interface Stress Element Method." Applied Mechanics and Materials 444-445 (October 2013): 27–31. http://dx.doi.org/10.4028/www.scientific.net/amm.444-445.27.

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This work describes our efforts towards building an object-oriented software framework for Interface Stress Element Method (ISEM), a newly developed numerical method for discontinuous and fracture problems. Based on the improved Interface Stress Element Method and object-oriented technology, we recognized major objects in ISEM and their interrelations. Then the class hierarchy, modules organization and data interfaces scheme were presented. We also addressed implementation issues and main features of this framework, which integrated a solver, a post-processor, a preprocessor and a model data converter. Numerical examples demonstrated that this system works well, which is a good starting point for further development.

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Chessa, J., and T. Belytschko. "An Extended Finite Element Method for Two-Phase Fluids." Journal of Applied Mechanics 70, no. 1 (January 1, 2003): 10–17. http://dx.doi.org/10.1115/1.1526599.

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An extended finite element method with arbitrary interior discontinuous gradients is applied to two-phase immiscible flow problems. The discontinuity in the derivative of the velocity field is introduced by an enrichment with an extended basis whose gradient is discontinuous across the interface. Therefore, the finite element approximation can capture the discontinuities at the interface without requiring the mesh to conform to the interface, eliminating the need for remeshing. The equations for incompressible flow are solved by a fractional step method where the advection terms are stabilized by a characteristic Galerkin method. The phase interfaces are tracked by level set functions which are discretized by the same finite element mesh and are updated via a stabilized conservation law. The method is demonstrated in several examples.

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Bhal, Santosh Kumar, and Prafulla Kumar Panda. "A fourth order orthogonal spline collocation method Interface boundary value problem." Indian Journal of Science and Technology 15, no. 4 (January 25, 2022): 184–90. http://dx.doi.org/10.17485/ijst/v15i4.964.

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Peng, Qian, Sheng Liu, Mark Robinson, Feng-gang Han, and Emmanuel Matsika. "A digital expression method for the module interface in a practical bus chassis modular design and case history." Concurrent Engineering 26, no. 4 (September 19, 2018): 355–66. http://dx.doi.org/10.1177/1063293x18799447.

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Modular design of products can effectively reduce product development cycle with the idea of concurrent engineering, the efficient management of module interface information in the design process is the premise and foundation for module sharing. This study aims to develop a methodology for interface information management in bus chassis modular design. The characteristics of module interfaces in mechanical design are first investigated by the comparison with Universal Serial Bus interfaces. A digital expression method is then proposed to describe the characteristics of interface geometry information using two matrices with mapping relationships. An encoding method is then developed for the interface information management in modular design. Finally, the implementation of the above method was illustrated with a case study of an electric bus chassis modular design. The results indicate that the digital expression method can represent the geometric information of the module interface precisely and provide a good foundation for the establishment of the modules database for the bus chassis. Novelty of the research is to provide a methodology to represent the characteristics of interface in mechanical design through digital expression.

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Kohut, P. "Interface-flux nodal transport method." Annals of Nuclear Energy 18, no. 11 (January 1991): 609–15. http://dx.doi.org/10.1016/0306-4549(91)90023-q.

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Lam, Chi-Hang, and Leonard M. Sander. "Inverse method for interface problems." Physical Review Letters 71, no. 4 (July 26, 1993): 561–64. http://dx.doi.org/10.1103/physrevlett.71.561.

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Liu, Zhi Lin, and Yong Huang. "Comparison of the Interface-Capturing Behavior between LSM and MCLS." Key Engineering Materials 730 (February 2017): 533–40. http://dx.doi.org/10.4028/www.scientific.net/kem.730.533.

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Numerical simulation of the moving interface is widely investigated in the fields of two-phase flow, crystal growth, molten metal casting and so on. To simulate accurately and quickly motion state of the moving interface, two types of interface-capturing method, LSM (level set method) and MCLS (mass-conserving LSM coupled with VOF (volume of fluid)), were comparatively analysed and studied. Two kinds of moving interface, rotation motion of Zaleska slotted disk interface and shearing deformation of the circle interface, were simulated. The level set advection equation was solved with IATVD (the characteristic integral-averaging finite volume method), RK-WENO (the third order Runge-Kutta method with WENO (weighted essentially non-oscillatory)), or the low order method, respectively. The level set function was re-initialized with modified Godunov method. Computation was implemented in different size mesh. When it is independent with mesh size, results show that the high order method, IATVD and RK-WENO, can get higher computing accuracy in LSM without topological geometry change. But computing time cost of RK-WENO is much greater than that of IATVD. For the low order method, LSM captures the moving interface in bad, however, MCLS’s numerical result is very good. But computing time cost of MCLS is much and much greater than that of LSM. For interface-capturing with topological geometry change, these two high order methods all can not capture the moving interface in good in LSM. Nevertheless, the resulting interfaces all are same as original interface in MCLS. These indicate that an appropriate numerical method and interface-capturing method can be chosen to accurately and quickly capture the related moving interface.

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Wang, Y., C. Shu, L. M. Yang, and H. Z. Yuan. "On the re-initialization of fluid interfaces in diffuse interface method." Computers & Fluids 166 (April 2018): 209–17. http://dx.doi.org/10.1016/j.compfluid.2018.02.021.

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ZHANG, JIANFENG. "TRIANGLE-QUADRANGLE GRID METHOD FOR POROELASTIC, ELASTIC, AND ACOUSTIC WAVE EQUATIONS." Journal of Computational Acoustics 09, no. 02 (June 2001): 681–702. http://dx.doi.org/10.1142/s0218396x0100070x.

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A new numerical technique is developed for wave propagation in heterogeneous poroelastic media and mixed poroelastic, elastic and acoustic media. The scheme, based on a first-order hyperbolic Biot's system and a discretization mesh of triangles and quadrangles, solves the problem using integral equilibrium equations around each node, instead of satisfying Biot's differential equations at each node as in the finite-difference method. The surface topography and complex geometrical interfaces can be accurately modeled with the proposed algorithm by making the nodes of triangles and quadrangles follow the curved interfaces. The elastic (acoustic)/poroelastic interface conditions of complex geometry are introduced using the integral equilibrium equations around nodes at the interface based on the continuities of total stresses and velocities between the interface. The free-surface conditions of complex geometrical boundaries are satisfied naturally for the scheme. This work is an extension of the grid method for the heterogeneous elastic media to the heterogeneous poroelastic one. The proposed algorithm is successfully tested against an analytical solution for Lamb's problem when the algorithm is reduced to handle the elastic limit of the Biot's equations. Examples of wave propagation in a poroelastic half-space with a semi-cylindrical pit on the surface and mixed acoustic-poroelastic and elastic-poroelastic models with inclined interfaces are presented.

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Kutsuki, Katsuhiro, Sachiko Kawaji, Yukihiko Watanabe, Shinichiro Miyahara, and Jun Saito. "Improved Evaluation Method for Channel Mobility in SiC Trench MOSFETs." Materials Science Forum 821-823 (June 2015): 757–60. http://dx.doi.org/10.4028/www.scientific.net/msf.821-823.757.

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We proposed an improved method for evaluating the effective channel mobility (μeff), involving an appropriate definition of the threshold voltage (Vth) based on the ideal gate bias voltage – drain current (VG-ID) characteristics. Using this method, the dependence of μeff on the effective field (Eeff) could be evaluated even for SiC trench MOSFETs with large interface state density (Dit) values. The dominant influence on μeff in the low Eeff region was found to be Coulomb scattering caused by interface states at the SiC/SiO2 interfaces.

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Zhao, Yu Hong, Wei Jin Liu, Hua Hou, and Yu Hui Zhao. "Impact on Solidification Dendrite Growth by Interfacial Atomic Motion Time with Phase Field Method." Materials Science Forum 749 (March 2013): 660–67. http://dx.doi.org/10.4028/www.scientific.net/msf.749.660.

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The Phase Field model of solidification processes was carried out coupled with temperature field model. The influence of interface atomic time on dendrite growth morphology in undercooled melt was simulated with pure nickel. The experimental results show that when the interface atomic motion time parameter is minor, the liquid-solid interfaces were unstable, disturbance can be amplified easily so the complicated side branches will grow, and the disturbance speed up the dendrite growth. With the increase of , the liquid-solid interfaces become more stable and finally the smooth dendrite morphology can be obtained.

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36

Nourgaliev, R. R., T. N. Dinh, and T. G. Theofanous. "The Characteristics-Based Matching (CBM) Method for Compressible Flow With Moving Boundaries and Interfaces." Journal of Fluids Engineering 126, no. 4 (July 1, 2004): 586–604. http://dx.doi.org/10.1115/1.1778713.

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Recently, Eulerian methods for capturing interfaces in multi-fluid problems become increasingly popular. While these methods can effectively handle significant deformations of interface, the treatment of the boundary conditions in certain classes of compressible flows are known to produce nonphysical oscillations due to the radical change in equation of state across the material interface. One promising recent development to overcome these problems is the Ghost Fluid Method (GFM). The present study initiates a new methodology for boundary condition capturing in multifluid compressible flows. The method, named Characteristics-Based Matching (CBM), capitalizes on recent developments of the level set method and related techniques, i.e., PDE-based re-initialization and extrapolation, and the Ghost Fluid Method (GFM). Specifically, the CBM utilizes the level set function to capture interface position and a GFM-like strategy to tag computational nodes. In difference to the GFM method, which employs a boundary condition capturing in primitive variables, the CBM method implements boundary conditions based on a characteristic decomposition in the direction normal to the boundary. In this way overspecification of boundary conditions is avoided and we believe so will be spurious oscillations. In this paper, we treat (moving or stationary) fluid-solid interfaces and present numerical results for a select set of test cases. Extension to fluid-fluid interfaces will be presented in a subsequent paper.

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Xiao, Min, Guoxi Ni, and Xiao Niu. "A robust interface method for reactive fluids with sharp interface." Computers & Fluids 223 (June 2021): 104915. http://dx.doi.org/10.1016/j.compfluid.2021.104915.

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null, Youngmok Jeon, and Son-Young Yi. "The Immersed Interface Hybridized Difference Method for Parabolic Interface Problems." Numerical Mathematics: Theory, Methods and Applications 15, no. 2 (June 2022): 336–59. http://dx.doi.org/10.4208/nmtma.oa-2021-0154.

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张, 利平. "Immersed Interface Method for Elliptic Interface and Heat Conduction Problem." Advances in Applied Mathematics 04, no. 02 (2015): 136–49. http://dx.doi.org/10.12677/aam.2015.42019.

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Chern, I.-Liang, and Yu-Chen Shu. "A hybrid coupling interface method for elliptic complex interface problems." PAMM 7, no. 1 (December 2007): 1141501–2. http://dx.doi.org/10.1002/pamm.200700280.

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LAM, CHI-HANG, and LEONARD M. SANDER. "LARGE SCALE STRUCTURE OF INTERFACES: AN INVERSE METHOD." Fractals 01, no. 04 (December 1993): 745–52. http://dx.doi.org/10.1142/s0218348x93000782.

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We propose an inverse method to extract effective couplings and the renormalization group flow for growing interfaces. We apply it to discrete surface growth models in the Kardar-Parisi-Zhang universality class in 1+1 dimensions and obtain the first measurement of a universal coupling constant. We consider interfaces not in the steady state. It may also be applicable to analyze experimental data and for other forms of interface growth.

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Jia, Hong Zhi, Jia Bin Sun, Yu Fei Wu, and Xin Sheng Xu. "A Scientific Problem and Analytical Method for Structure Reinforcement." Advanced Materials Research 446-449 (January 2012): 3569–72. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.3569.

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Beam reinforcement is reduced to mechanics behavior of structures of multilayer materials in this paper. An analytical method is presented based on Hamiltonian system. In the system, displacements and stresses are pairs of dual variables. The state vectors of the system describe directly connective conditions on the interfaces of two materials and structures so that the rule of normal and shear stresses on the interface can be revealed. Based on the criterion of lamination crack, the interface strength is determined. Results show that the lamination crack correlates highly with the ratios of material constants and geometrical parameters of structures. The result and conclusion provide a design criterion for structure reinforcement.

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Chung, Jihye, Seongjin Hong, Youngbin Kim, SJ Kang, and Changhun Kim. "Layout placement optimization methods using repeated user interface sequence patterns for client applications." Information Visualization 18, no. 3 (February 6, 2019): 357–70. http://dx.doi.org/10.1177/1473871618825334.

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We propose a method for automatically optimizing the layout placement of user interfaces in commercial applications. The proposed method suggests an optimal user interface component placement layout for an application by considering behavior cost, repeated user interface sequences, and preferred placement area. We used the Apriori algorithm and a genetic algorithm efficiently to optimize user interface component placement based on the evaluation of a keystroke-level model. We verified the effectiveness of the proposed method using a customizable user interface for three applications, namely, Adobe Photoshop, 3DS MAX, and the massively multiplayer online role-playing game “World of Warcraft.” Our experimental results show that the proposed system can both reduce the behavioral cost of an application at the user level and enable efficient user interface usage by considering interrelationship patterns among user interface components.

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Зайцева, Э. Г., О. В. Наумова, and Б. И. Фомин. "Профилирование компонент подвижности вблизи гетерограниц тонких пленок кремния." Физика и техника полупроводников 54, no. 2 (2020): 124. http://dx.doi.org/10.21883/ftp.2020.02.48891.9272.

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In this paper, we proposed the method for profiling of the components of the effective mobility of charge carriers μeff defined by their scattering by surface phonons and by roughness at the film/insulator interfaces. The method is based on the controlled localization of charge carriers relative to the interface under study due to the coupling effect. The proposed method allows us to independently determine mobility components near different interfaces of films. The use of the proposed method for studying the mobility has allowed us to obtain information on the roughness of the interface and on the structural quality of the ultrathin (1–3-nm) layer of Si near the Si/buried oxide interface.

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O'Keeffe, M. "Application of the bond valence method to Si/NiSi2 interfaces." Journal of Materials Research 6, no. 11 (November 1991): 2371–74. http://dx.doi.org/10.1557/jmr.1991.2371.

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It is shown how the bond valence method can be used to estimate expected interatomic distances in coherent interfaces. The method is illustrated by application to the Si/NiSi2 (111) interface with results generally in accord with experimental data.

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Ohayon, R., R. Sampaio, and C. Soize. "Dynamic Substructuring of Damped Structures Using Singular Value Decomposition." Journal of Applied Mechanics 64, no. 2 (June 1, 1997): 292–98. http://dx.doi.org/10.1115/1.2787306.

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This paper deals with the theoretical aspects concerning linear elastodynamic of damped continuum medium in the frequency domain. Eigenvalue analysis and frequency response function are studied. The methods discussed here use a dynamic substructuring approach. The first method is based on a mixed variational formulation in which Lagrange multipliers are introduced to impose the linear constraints on the coupling interfaces. A modal reduction of each substructure is obtained using its free-interface modes. A practical construction of a unique solution is carried out using the Singular Value Decomposition (SVD) related only to the frequency-independent Lagrange multiplier terms. The second method is similar to the first one replacing the free-interface modes by the fixed-interface modes and elastostatic operator on the interface of each substructure.

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Yang, Xu-Xu, Hong-Wen Jing, and Wei-Guo Qiao. "Numerical Investigation of the Failure Mechanism of Transversely Isotropic Rocks with a Particle Flow Modeling Method." Processes 6, no. 9 (September 17, 2018): 171. http://dx.doi.org/10.3390/pr6090171.

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Transversely isotropic rocks are commonly encountered in rock engineering practices, and their strength and failure behavior is often governed by the property of anisotropy. The particle flow modeling method was utilized to investigate the failure mechanism of transversely isotropic rocks subject to uniaxial compressive loading. The details for establishing transversely isotropic rock models were first presented, and then a parametric study was carried out to look into the effect of interface properties on the failure mode and strength of transversely isotropic rock models by varying the interface dip angle. The smooth joint model was incorporated to create interfaces for the completeness of establishing transversely isotropic rock models with the particle flow modeling method. Accordingly, three failure modes observed in transversely isotropic rock models with varying dip angles were tensile failure across interfaces, shear failure along interfaces, and tensile failure along interfaces. Furthermore, the interface mechanical parameters were found to differently influence the failure behavior of transversely isotropic rock models. The bonded joint cohesion and bonded joint friction angle that contribute to the shear strength of interfaces have considerable influence on the uniaxial compressive strength (UCS) values, while the joint coefficient of friction and joint tensile strength have a slight influence on the UCS values. The findings in this paper indicated the importance of interfaces in estimating failure behavior of transversely isotropic rocks.

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Yao, Yi Yong, and Li Ping Zhao. "The Bending Interface Model for Flexible Three-Dimensional Microstructure." Applied Mechanics and Materials 58-60 (June 2011): 1082–87. http://dx.doi.org/10.4028/www.scientific.net/amm.58-60.1082.

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For the flexible three-dimensional microstructure, the GMC single-cell method was applied to establish the mechanical model of the bending interface, and then the interface micro-element method based on composite materials was performed to work on the interfacial properties of weak interfaces and micro-mechanical behavior. As a result, a flexible interface model for the interface stress was constructed and it would be helpful to improve the bending properties of the flexible three-dimensional microstructure.

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Green, Paul A., and Jin-Seop Park. "Evaluation of a Navigation Radio Using the Think-Aloud Method." International Journal of Vehicular Technology 2013 (January 30, 2013): 1–12. http://dx.doi.org/10.1155/2013/705086.

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In this experiment, 13 licensed drivers performed 20 tasks with a prototype navigation radio. Subjects completed such tasks as entering a street address, selecting a preset radio station, and tuning to an XM station while “thinking aloud” to identify problems with operating the prototype interface. Overall, subjects identified 64 unique problems with the interface; 17 specific problems were encountered by more than half of the subjects. Problems are related to inconsistent music interfaces, limitations to destination entry methods, icons that were not understood, the lack of functional grouping, and similar looking buttons and displays, among others. An important project focus was getting the findings to the developers quickly. Having a scribe to code interactions in real time helped as well as directed observations of test sessions by representatives of the developers. Other researchers are encouraged to use this method to examine automotive interfaces as a complement to traditional usability testing.

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Chen, Xiaowu, Guozhang Jiang, Gongfa Li, Ying Zuo, and Feng Xiang. "A new knowledgeable encapsulation method of steel production scheduling model." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 234, no. 14 (August 5, 2020): 1673–85. http://dx.doi.org/10.1177/0954405420944813.

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The steel production scheduling is a typical continuous/discrete hybrid process; it is dynamic and difficult to predict. The scheduling model is the core object of steel production scheduling, and its modeling methods directly affect the precise decision-making and execution efficiency of scheduling. However, the current linear program and simulation model do not yet realize the scheduling model quick reuse and dynamic construction. Therefore, a new model knowledgeable encapsulation method is proposed, which consists of a knowledgeable encapsulation framework and knowledgeable mapping method. The knowledgeable encapsulation framework includes the model knowledge description interface, model knowledge publication interface, model knowledge behavior interface, and a web platform. The interfaces and the platform are designed to help model providers to encapsulate the scheduling model in an open network environment. The mapping method is constructed to strengthen the relationship between the model knowledge. Finally, a knowledge encapsulation platform is established to verify the effectiveness of the model knowledge encapsulation method.

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Journal articles on the topic 'Interface method'

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