Journal articles on the topic 'Sketch-Based Interface and Modelling'
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Jacquemyn, Carl, Margaret E. H. Pataki, Gary J. Hampson, Matthew D. Jackson, Dmytro Petrovskyy, Sebastian Geiger, Clarissa C. Marques, et al. "Sketch-based interface and modelling of stratigraphy and structure in three dimensions." Journal of the Geological Society 178, no. 4 (February 22, 2021): jgs2020–187. http://dx.doi.org/10.1144/jgs2020-187.
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Geological modelling is widely used to predict resource potential in subsurface reservoirs. However, modelling is often slow, requires use of mathematical methods that are unfamiliar to many geoscientists, and is implemented in expert software. We demonstrate here an alternative approach using sketch-based interface and modelling, which allows rapid creation of complex three-dimensional (3D) models from 2D sketches. Sketches, either on vertical cross-sections or in map-view, are converted to 3D surfaces that outline geological interpretations. We propose a suite of geological operators that handle interactions between the surfaces to form a geologically realistic 3D model. These operators deliver the flexibility to sketch a geological model in any order and provide an intuitive framework for geoscientists to rapidly create 3D models. Two case studies are presented, demonstrating scenarios in which different approaches to model sketching are used depending on the geological setting and available data. These case studies show the strengths of sketching with geological operators. Sketched 3D models can be queried visually or quantitatively to provide insights into heterogeneity distribution, facies connectivity or dynamic model behaviour; this information cannot be obtained by sketching in 2D or on paper.Supplementary material: Rapid Reservoir Modelling prototype (executable and source code) is available at: https://bitbucket.org/rapidreservoirmodelling/rrm. Supplementary screen recordings for the different case studies showing sketch-based modelling in action are available at https://doi.org/10.6084/m9.figshare.c.5084141 and supplementary figure S1-S4 are available at https://doi.org/10.6084/m9.figshare.c.5303043
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Hopkins, Lewis D., Rajiv Ramanathan, and Varkki George Pallathucheril. "Interface for a sketch-planning workbench." Computers, Environment and Urban Systems 28, no. 6 (November 2004): 653–66. http://dx.doi.org/10.1016/j.compenvurbsys.2003.06.001.
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Flipo, N., A. Mouhri, B. Labarthe, and S. Biancamaria. "Continental hydrosystem modelling: the concept of nested stream–aquifer interfaces." Hydrology and Earth System Sciences Discussions 11, no. 1 (January 14, 2014): 451–500. http://dx.doi.org/10.5194/hessd-11-451-2014.
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Abstract. Recent developments in hydrological modelling are based on a view of the interface being a single continuum through which water flows. These coupled hydrological-hydrogeological models, emphasising the importance of the stream–aquifer interface, are more and more used in hydrological sciences for pluri-disciplinary studies aiming at investigating environmental issues. This notion of a single continuum, which is accepted by the hydrological modellers, originates in the historical modelling of hydrosystems based on the hypothesis of a homogeneous media that led to the Darcy law. There is then a need to first bridge the gap between hydrological and eco-hydrological views of the stream–aquifer interfaces, and, secondly, to rationalise the modelling of stream–aquifer interface within a consistent framework that fully takes into account the multi-dimensionality of the stream–aquifer interfaces. We first define the concept of nested stream–aquifer interfaces as a key transitional component of continental hydrosystem. Based on a literature review, we then demonstrate the usefulness of the concept for the multi-dimensional study of the stream–aquifer interface, with a special emphasis on the stream network, which is identified as the key component for scaling hydrological processes occurring at the interface. Finally we focus on the stream–aquifer interface modelling at different scales, with up-to-date methodologies and give some guidances for the multi-dimensional modelling of the interface using the innovative methodology MIM (Measurements-Interpolation-Modelling), which is graphically developed, scaling in space the three pools of methods needed to fully understand stream–aquifer interfaces at various scales. The outcome of MIM is the localisation in space of the stream–aquifer interface types that can be studied by a given approach. The efficiency of the method is demonstrated with two approaches from the local (~1 m) to the continental (<10 M km2) scale.
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Z. Abidin, Z. F., and M. N. Osman Zahid. "Real time object customization in CAD system." Indonesian Journal of Electrical Engineering and Computer Science 15, no. 2 (August 1, 2019): 1066. http://dx.doi.org/10.11591/ijeecs.v15.i2.pp1066-1075.
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Object customization in Computer Aided Design (CAD) is a method used to modify the sketch parameters and change the model geometries. This method is one of important features in part modelling which empowered CAD user to simply modify their product. The conventional method of modifying CAD model is usually relied on the manual editing. This paper outlines a development of program than can be integrated in CAD/CAM system for real time object customization. It uses Visual Basic (VB) programming with custom Graphical User Interface (GUI) generated in NX10 (CAD/CAM software) interface. The main contribution of this research is a tool for real time object customization that capable to assist the modification of 3D model. In order to develop the tool, 3D model modification instructions are translated into programming codes by using Journaling tools in NX interface. Editable parameters are identified based on the model shapes. The related codes are reconstructed, modified and linked to the functional GUI. This allows user to simply modify the model shapes in real time with minimum process steps. The performance of the method is evaluated in terms of the reduction of process steps and time in modifying the 3D model in CAD system. All the findings and details of approach are presented.
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WaiShiang, Cheah, Aida Shafreena bt Ahmad Puad, Puah Chin Hong, and Alfian Abdul Halin. "Agent-Oriented Requirement Engineering for Mobile Application Development." International Journal of Interactive Mobile Technologies (iJIM) 11, no. 6 (November 27, 2017): 32. http://dx.doi.org/10.3991/ijim.v11i6.6760.
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<span>Mobile application development is receiving much attention nowadays. With the enhancement of mobile application tools like an Android studio, etc. and kinds of online support, the development of the mobile application is getting easier. Indeed, mobile application development is not a trivial task. When given a particular problem, a novice mobile programmer will commonly sketch the mobile interface followed by coding. The rapid prototyping technique and trial from errors have led to issues such as poor domain understanding. We argue that a complete understanding of the domain is needed for mobile application development. Hence, requirements engineering is an important phase. This paper introduces a technique to assist mobile application development through Agent-Oriented Requirements Engineering (AORE). AORE consists of goal modelling to analyse and understand a mobile-based project. With goal modelling, AORE allows a modeller to identify and analyse the functionalities and non-functionalities of the system and present a holistic view of the proposed system. It showcases the services, operations and constraints of the proposed system. AORE is a useful part of the development phase and can complement current steps in mobile application development lifecycle.</span>
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Planas, Elena, Gwendal Daniel, Marco Brambilla, and Jordi Cabot. "Towards a model-driven approach for multiexperience AI-based user interfaces." Software and Systems Modeling 20, no. 4 (August 2021): 997–1009. http://dx.doi.org/10.1007/s10270-021-00904-y.
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AbstractSoftware systems start to include other types of interfaces beyond the “traditional” Graphical-User Interfaces (GUIs). In particular, Conversational User Interfaces (CUIs) such as chat and voice are becoming more and more popular. These new types of interfaces embed smart natural language processing components to understand user requests and respond to them. To provide an integrated user experience all the user interfaces in the system should be aware of each other and be able to collaborate. This is what is known as a multiexperience User Interface. Despite their many benefits, multiexperience UIs are challenging to build. So far CUIs are created as standalone components using a platform-dependent set of libraries and technologies. This raises significant integration, evolution and maintenance issues. This paper explores the application of model-driven techniques to the development of software applications embedding a multiexperience User Interface. We will discuss how raising the abstraction level at which these interfaces are defined enables a faster development and a better deployment and integration of each interface with the rest of the software system and the other interfaces with whom it may need to collaborate. In particular, we propose a new Domain Specific Language (DSL) for specifying several types of CUIs and show how this DSL can be part of an integrated modeling environment able to describe the interactions between the modeled CUIs and the other models of the system (including the models of the GUI). We will use the standard Interaction Flow Modeling Language (IFML) as an example “host” language.
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VERSCHUEREN, M., F. N. VAN DE VOSSE, and H. E. H. MEIJER. "Diffuse-interface modelling of thermocapillary flow instabilities in a Hele-Shaw cell." Journal of Fluid Mechanics 434 (May 10, 2001): 153–66. http://dx.doi.org/10.1017/s0022112001003561.
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In this paper we present the results of a diffuse-interface model for thermocapillary or Marangoni flow in a Hele-Shaw cell. We use a Galerkin-type spectral element discretization, based on Gauss–Lobatto quadrature, for numerical implementation of the governing equations resulting from the diffuse-interface model. The results are compared to classical results for a linear and circular fixed interface. It is found that the diffuse-interface solution converges to the classical solution in the sharp-interface limit. The results are sufficiently accurate if the interfacial thickness is only small compared to the size of the thermocapillary boundary layer, even if the interfacial thickness used is much larger than the real interfacial thickness. We also consider freely movable interfaces with a temperature gradient perpendicular to the interface. It will be shown that this situation can lead to a destabilizing Marangoni convection.
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Indalkar, Akshay, Akshay Gunjal, Rachna Satao, Mihir Ashok Dalal, and Nikhil Sharma. "Review on Learning based Interface Modelling using Augmented Reality." IJARCCE 6, no. 1 (January 30, 2017): 156–58. http://dx.doi.org/10.17148/ijarcce.2017.6130.
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Järvelin, Kalervo, Peter Ingwersen, and Timo Niemi. "A user‐oriented interface for generalised informetric analysis based on applying advanced data modelling techniques." Journal of Documentation 56, no. 3 (June 1, 2000): 250–78. http://dx.doi.org/10.1108/eum0000000007115.
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This article presents a novel user‐oriented interface for generalised informetric analysis and demonstrates how informetric calculations can easily and declaratively be specified through advanced data modelling techniques. The interface is declarative and at a high level. Therefore it is easy to use, flexible and extensible. It enables end users to perform basic informetric ad hoc calculations easily and often with much less effort than in contemporary online retrieval systems. It also provides several fruitful generalisations of typical informetric measurements like impact factors. These are based on substituting traditional foci of analysis, for instance journals, by other object types, such as authors, organisations or countries. In the interface, bibliographic data are modelled as complex objects (non‐first normal form relations) and terminological and citation networks involving transitive relationships are modelled as binary relations for deductive processing. The interface is flexible, because it makes it easy to switch focus between various object types for informetric calculations, e.g. from authors to institutions. Moreover, it is demonstrated that all informetric data can easily be broken down by criteria that foster advanced analysis, e.g. by years or content‐bearing attributes. Such modelling allows flexible data aggregation along many dimensions. These salient features emerge from the query interface‘s general data restructuring and aggregation capabilities combined with transitive processing capabilities. The features are illustrated by means of sample queries and results in the article.
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Kullolli, Borana, Pablo Cuéllar, Matthias Baeßler, and Hans Henning Stutz. "Modelling and calibration for cyclic soil-structure interface behaviour." E3S Web of Conferences 92 (2019): 13007. http://dx.doi.org/10.1051/e3sconf/20199213007.
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The structural performance of many geotechnical systems (e.g. axially-loaded pile foundations), depends on the shearing resistance at the soil interface, which may govern the load bearing capacity of the foundation. Experimental investigations have shown that this interaction is mainly localised within a narrow shear band next to the structure. Under cyclic loading, a contraction of the soil at the interface may arise (net volume loss), possibly leading to a stress relaxation and thus to a reduction of the load bearing capacity (the so-called friction fatigue). Based on the constitutive similarities between soil continua and interfaces, we propose here the adaption of a Generalized Plasticity model for sandy soils for the numerical analysis of interface problems. In this contribution, the results of an experimental campaign for the parameter calibration of the constitutive model are presented. The tests have been conducted with a ring shear device involving different normal stresses, roughness of the steel plates as well as cyclic loading. The new modelling approach shows promising results and has the additional practical advantage that the interface zone and the soil continuum can both be described with the same constitutive model in general boundary value problems.
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Zhao, Yiyi. "Interaction Design System for Artificial Intelligence User Interfaces Based on UML Extension Mechanisms." Mobile Information Systems 2022 (June 16, 2022): 1–8. http://dx.doi.org/10.1155/2022/3534167.
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With the rapid development of computer network technology in recent years, more and more demands have been placed on the functionality and attributes of the user interface. In the development of many computer projects, the variability and flexibility of user interface requirements have greatly increased the complexity of program development for researchers. In addition, the poor reusability of page access control writing has created a pressing need for a highly standardized and flexible way of developing software. Thus, the development and design of user interfaces for application software systems occupy an important position and have been a hot topic of research in the field of human-computer interaction. The traditional methods of describing user interaction, such as state transitions and data flow diagrams, are not based on global and intuitive concepts. Moreover, there is little support for the design of user interface interaction behavior, resulting in user interfaces being ignored at design time and left to implementers to grasp at coding time. It is therefore an issue that needs to be addressed in order to integrate traditional methods and intuitive descriptions from the user’s perspective into a new interface development model and methodology. This research creates a user interface framework based on interaction behavior from the user’s perspective. Furthermore, UML extension mechanisms are used to enable the user interface framework to better support UML-based modelling environments. In addition, the UML is structured and extended to include structural elements that support interface generation, and a structured use case model is proposed, which drives the analysis and design of the individual submodels. The extracted abstract interface elements and their mapping to concrete interface elements are documented in a way that explores the generation of different target languages under different platforms. This study incorporates user requirements and provides a scientific reference for the development and design of user interfaces.
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Dudziak, Sławomir, Wioletta Jackiewicz-Rek, and Zofia Kozyra. "On the Calibration of a Numerical Model for Concrete-to-Concrete Interface." Materials 14, no. 23 (November 25, 2021): 7204. http://dx.doi.org/10.3390/ma14237204.
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The study was devoted to the numerical modelling of concrete-to-concrete interfaces. Such an interface can be found in many modern composite structures, so proper characterisation of its behaviour is of great importance. A strategy for calibration of a model based on cohesive finite elements and the elastic-damage traction–separation constitutive law available by default in the Abaqus code was proposed. Moreover, the default interface material model was enhanced with the user-field-variables subroutine to include a real strength envelope for such interfaces. Afterwards, the modelling approach was validated with numerical simulation of the most popular tests for determining the strength characteristics of concrete-to-concrete interfaces: three-point bending beam with a notch, splitting bi-material cubic specimens, and slant-shear tests. The results of own pilot studies were used as well as those reported by other researchers. The performed simulations proved the accuracy of the proposed modelling strategy (the mean ratio of ultimate forces obtained with numerical models and from experiments was equal to 1.01). Furthermore, the presented examples allowed us to better understand the basic test methods for concrete interfaces and the observed mechanisms of failure during them.
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Yoo, J., S.-J. Hong, J. S. Choi, and Y. J. Kang. "Design guide of bolt locations for bolted-joint plates considering dynamic characteristics." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 223, no. 2 (December 1, 2008): 363–75. http://dx.doi.org/10.1243/09544062jmes942.
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In this study, a simplified finite-element (FE) modelling method is proposed, which simulates the dynamic characteristics of a bolted-joint structure having a large interface area, by utilizing the concept of the cone-frusta method for the jointed parts and spring elements to represent the contact effects occurring in the interfaced area. A method for providing design guidelines for the selection of additional bolt locations is also proposed based on the natural frequencies and mode shapes of the bolted-joint plates. The natural frequency of a specific mode and its mode shape can be controlled by adjusting bolt locations and the number of bolts, considering the effects of the relative deformations in mode shapes, at the plate interfaces. The proposed modelling method and design guidelines are verified based on the experimental results and the FE analysis.
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Colombo, Marco, Andrea De Santis, Bruce C. Hanson, and Michael Fairweather. "Prediction of Horizontal Gas–Liquid Segregated Flow Regimes with an All Flow Regime Multifluid Model." Processes 10, no. 5 (May 6, 2022): 920. http://dx.doi.org/10.3390/pr10050920.
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The generalized multifluid modelling approach (GEMMA) has been developed to handle the multiplicity of flow regimes and the coexistence of interfaces of largely different scales in multiphase flows. The solver, based on the OpenFOAM reactingEulerFoam family of solvers, adds interface resolving-like capabilities to the multifluid solver in the cells occupied by large interfaces. In this paper, GEMMA is further developed to predict stratified and slug flow regimes in horizontal ducts. The suppression of the turbulence and the wall-like behaviour of large interfaces is modelled with an additional dissipation source. This enables an accurate prediction of the velocity and of the turbulence kinetic energy in a stratified channel flow and the capturing of the formation and the travel of liquid slugs in an annulus. Large interfaces are identified and tracked, not only in the smooth and wavy stratified regimes but also in the much more perturbed interfaces of liquid slugs. The present work confirms GEMMA to be a reliable approach to provide all flow regime modelling capabilities. Further development will be focused on large interface momentum-transfer modelling, responsible for the overestimation of the interfacial shear and the limited liquid excursion during slugs, and the extension to interface break-up and the entrainment of bubbles and droplets, to handle the entire range of regimes encountered in horizontal flows.
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Zheng, Chen, Matthieu Bricogne, Julien Le Duigou, Peter Hehenberger, and Benoit Eynard. "Knowledge-based engineering for multidisciplinary systems: Integrated design based on interface model." Concurrent Engineering 26, no. 2 (October 26, 2017): 157–70. http://dx.doi.org/10.1177/1063293x17734591.
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Due to the growing number of requirements and the introduction of new technologies, current trends indicate that more disciplines have been involved into the system design. The design of such multidisciplinary systems, especially during the detailed design phase, requires designers and expertise from different disciplines. Therefore, the research question about how to achieve an integrated design for multidisciplinary systems has attracted the attention from both academia and industry. In order to achieve such integrated design for multidisciplinary systems, more and more researchers focus on the interface of multidisciplinary systems because the interface plays a quite significant role to guarantee the components defined by the designers of different disciplines integrate correctly and to eventually help them to achieve the integrated design. This article presents an interface knowledge base to manage the design data and rules related to the interfaces. A knowledge-based engineering approach is then proposed. By applying the knowledge-based engineering approach, a synergistic integration of the discipline-specific components can be realised; however, the unnecessary iterations can be avoided so that a concurrent design process during the detailed design phase can be achieved. This knowledge-based engineering approach is demonstrated by the case studies based on a partial discharge detection system and a belt conveyor system.
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KHATAVKAR, V. V., P. D. ANDERSON, P. C. DUINEVELD, and H. E. H. MEIJER. "Diffuse-interface modelling of droplet impact." Journal of Fluid Mechanics 581 (May 22, 2007): 97–127. http://dx.doi.org/10.1017/s002211200700554x.
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The impact of micron-size drops on a smooth, flat, chemically homogeneous solid surface is studied using a diffuse-interface model (DIM). The model is based on the Cahn–Hilliard theory that couples thermodynamics with hydrodynamics, and is extended to include non-90° contact angles. The (axisymmetric) equations are numerically solved using a combination of finite- and spectral-element methods. The influence of various process and material parameters such as impact velocity, droplet diameter, viscosity, surface tension and wettability on the impact behaviour of drops is investigated. Relevant dimensionless parameters are defined and, depending on the values of the Reynolds number, the Weber number and the contact angle, which for the cases considered here range from 1.3 to 130, 0.43 to 150 and 45° to 135°, respectively, the model predicts the spreading of a droplet with or without recoil or even rebound of the droplet, totally or partially, from the solid surface. The wettability significantly affects the impact behaviour and this is particularly demonstrated with an impact at Re = 130 and We = 1.5, where for θ < 60° the droplet oscillates a few times before attaining equilibrium while for θ ≥ 60° partial rebound of the droplet occurs, i.e. the droplet breaks into two unequal sized drops. The size of the part that remains in contact with the solid surface progressively decreases with increasing θ until at a value θ ≈ 120° a transition to total rebound happens. When the droplet rebounds totally, it has a top-heavy shape.
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Pigorev, Dmitry. "Mesa Python platform for agent-based modelling." Artificial societies 16, no. 3 (2021): 0. http://dx.doi.org/10.18254/s207751800008176-2.
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Mesa is a licensed by Apache development environment for agent-based models (or ABM) in Python. It allows users to create agent-based models using built-in basic components (such as spatial and agent schedulers) or custom implementations; visualize them using the interface in a web browser; and analyze their results using Python data analysis tools. The purpose of the development of the environment was the desire of the authors to create an alternative for NetLogo, Repast or MASON based on the Python language.
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NORRIE, M. C., and M. WUNDERLI. "MODELLING IN COORDINATION SYSTEMS." International Journal of Cooperative Information Systems 04, no. 02n03 (June 1995): 189–211. http://dx.doi.org/10.1142/s0218843095000081.
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We describe an approach to the coordination of application systems based on the modelling and maintenance of inter-system dependencies expressed as data constraints together with update propagation rules. These dependencies are specified by a Coordination Model which comprises a Coordination Interface for each application system together with a global Coordination View. A Coordination Interface describes local object types relevant for system-wide coordination. The Coordination View describes the subsystems, their globally important object types and the relationships between those object types. Additionally, the Coordination View specifies actions to restore global consistency in the event of constraint violations, thereby providing system coordination. Specifically, we describe how this approach has been adopted in a prototype Computer Integrated Manufacturing (CIM) system based on the coordination of CIM subsystems. In this CIM system, the Coordination Model is specified using the NIAM data model.
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Abouorm, Lara, Maxime Blais, Nicolas Moulin, Julien Bruchon, and Sylvain Drapier. "A Robust Monolithic Approach for Resin Infusion Based Process Modelling." Key Engineering Materials 611-612 (May 2014): 306–15. http://dx.doi.org/10.4028/www.scientific.net/kem.611-612.306.
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The aim of this work is to focus on the Stokes-Darcy coupled problem in order to propose a robust monolithic approach to simulate composite manufacturing process based on liquid resin infusion. The computational domain can be divided into two non-miscible sub-domains: a purely fluid domain and a porous medium. In the purely fluid domain, the fluid flows according to the Stokes' equations, while the fluid flows into the preforms according to the Darcy's equations. Specific conditions have to be considered on the fluid/porous medium interface. Under the effect of a mechanical pressure applied on the high deformable preform/resin stacking, the resin flows and infuses through the preform which permeability is very low, down to 10-15 m2. Flows are solved using finite element method stabilized with a sub-grid scale stabilization technique (ASGS). A special attention is paid to the interface conditions, namely normal stress and velocity continuity and tangential velocity constraint similar to a Beaver-Joseph-Saffman’s condition. The originality of the model consists in using one single mesh to represents the Stokes and the Darcy sub-domains (monolithic approach). A level set context is used to represent Stokes-Darcy interface and to capture the moving flow front. This monolithic approach is now perfectly robust and leads to perform complex shapes for manufacturing process by resin infusion.
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Yuan, Ming Hai, Yue Ding, and Ai Min Ji. "Design of the Gear Database Based on UG Secondary Development." Applied Mechanics and Materials 236-237 (November 2012): 1312–15. http://dx.doi.org/10.4028/www.scientific.net/amm.236-237.1312.
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This paper, based on Unigraphics NX6.0, made use of UG’s strong parametric modelling technology and secondary development module of UG/OPEN API, used the technology of ADO to achieve technical applications and databases interface, and integrated with database and MFC, to develop a gear CAD library system ,and achieve the aim of parameterization modelling and data management of gears.
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Pahl, Claus, and Luke Collins. "Software Service Adaptation Based on Interface Localisation." International Journal of Systems and Service-Oriented Engineering 5, no. 1 (January 2015): 16–34. http://dx.doi.org/10.4018/ijssoe.2015010102.
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The aim of Web services is the provision of software services to a range of different users in different locations. Service localisation in this context can facilitate the internationalisation and localisation of services by allowing their adaption to different locales. The authors investigate three dimensions: (i) lingual localisation by providing service-level language translation techniques to adopt services to different languages, (ii) regulatory localisation by providing standards-based mappings to achieve regulatory compliance with regionally varying laws, standards and regulations, and (iii) social localisation by taking into account preferences and customs for individuals and the groups or communities in which they participate. The objective is to support and implement an explicit modelling of aspects that are relevant to localisation and runtime support consisting of tools and middleware services to automating the deployment based on models of locales, driven by the two localisation dimensions. The authors focus here on an ontology-based conceptual information model that integrates locale specification into service architectures in a coherent way.
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Xue, Qing, Xuan Han, Mingrui Li, and Minxia Liu. "A Conceptual Architecture for Adaptive Human-Computer Interface of a PT Operation Platform Based on Context-Awareness." Discrete Dynamics in Nature and Society 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/371204.
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We present a conceptual architecture for adaptive human-computer interface of a PT operation platform based on context-awareness. This architecture will form the basis of design for such an interface. This paper describes components, key technologies, and working principles of the architecture. The critical contents covered context information modeling, processing, relationship establishing between contexts and interface design knowledge by use of adaptive knowledge reasoning, and visualization implementing of adaptive interface with the aid of interface tools technology.
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Sharma, L., R. H. J. Peerlings, P. Shanthraj, F. Roters, and M. G. D. Geers. "An FFT-based spectral solver for interface decohesion modelling using a gradient damage approach." Computational Mechanics 65, no. 4 (December 11, 2019): 925–39. http://dx.doi.org/10.1007/s00466-019-01801-4.
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AbstractThis work presents a fast Fourier transform (FFT) based method that can be used to model interface decohesion. The inability of an FFT solver to deal with sharp interfaces discards the use of conventional cohesive zones to model the interfacial mechanical behaviour within this framework. This limitation is overcome by approximating sharp interfaces (e.g. grain/phase boundaries) with an interphase. Within the interphase, the background plastic constitutive behaviour is inherited from the respective adjacent grains. The anisotropic kinematics of the decohesion process is modelled using a damage deformation gradient that is constructed by mapping the opening strains (in normal and tangential modes) to the associated projection tensors. The degradation (damage) of the interfacial opening resistances is modelled via a dimensionless nonlocal damage variable that prevents localisation of damage within the interphase. This nonlocal variable results from the solution of a gradient damage based regularisation equation within the interphase subdomain. The damage field is constrained to the interphase region by applying a relatively large penalisation on the damage gradients inside the interphase. The extent of nonlocality ensures that the damage is largely uniform in the direction perpendicular to the interphase, thus making its thickness the theoretical lengthscale for dissipation. To achieve model predictions that are objective with respect to the interphase thickness, scaling relations of the model parameters are proposed. The numerical performance is shown for a uniform opening case and then for a propagating crack. Finally, an application to an artificial polycrystal is shown.
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Wei, Chao, Heng Gu, Yuchen Gu, Luchao Liu, Yihe Huang, Dongxu Cheng, Zhaoqing Li, and Lin Li. "Abnormal interfacial bonding mechanisms of multi-material additive-manufactured tungsten–stainless steel sandwich structure." International Journal of Extreme Manufacturing 4, no. 2 (April 12, 2022): 025002. http://dx.doi.org/10.1088/2631-7990/ac5f10.
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Abstract Tungsten (W) and stainless steel (SS) are well known for the high melting point and good corrosion resistance respectively. Bimetallic W–SS structures would offer potential applications in extreme environments. In this study, a SS→W→SS sandwich structure is fabricated via a special laser powder bed fusion (LPBF) method based on an ultrasonic-assisted powder deposition mechanism. Material characterization of the SS→W interface and W→SS interface was conducted, including microstructure, element distribution, phase distribution, and nano-hardness. A coupled modelling method, combining computational fluid dynamics modelling with discrete element method, simulated the melt pool dynamics and solidification at the material interfaces. The study shows that the interface bonding of SS→W (SS printed on W) is the combined effect of solid-state diffusion with different elemental diffusion rates and grain boundary diffusion. The keyhole mode of the melt pool at the W→SS (W printed on SS) interface makes the pre-printed SS layers repeatedly remelted, causing the liquid W to flow into the sub-surface of the pre-printed SS through the keyhole cavities realizing the bonding of the W→SS interface. The above interfacial bonding behaviours are significantly different from the previously reported bonding mechanism based on the melt pool convection during multiple material LPBF. The abnormal material interfacial bonding behaviours are reported for the first time.
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Petsch, Michael, Dieter Kohlgrüber, and Jörg Heubischl. "PANDORA - A python based framework for modelling and structural sizing of transport aircraft." MATEC Web of Conferences 233 (2018): 00013. http://dx.doi.org/10.1051/matecconf/201823300013.
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Over the last years a multidisciplinary aircraft predesign process chain was established at the DLR, including different numerical tools for the modelling and structural sizing of fuselage structures. To improve the flexibility and performance of this structural analysis part in the MDO process a new tool development has been started in 2016 called “Parametric Numerical Design and Optimization Routines for Aircraft” (PANDORA). The PANDORA framework is using the interpreted high-level programming language Python and is focused on using dedicated open-source packages. Within PANDORA a lot of new packages have been implemented, like a new interface to access CPACS data, a python based FE pre- and postprocessor, a FE data converter to build an interface between PANDORA and different FE solver and a visualization interface using “The Visualization Toolkit” (VTK). Some further packages to generate a FE model based on a CPACS file using the geometry core “Open Cascade” (OCC) and a new FE sizing algorithm is also under development. To simplify the usage of PANDORA and to keep it comprehensible - a graphical user interface (GUI) has been added using the PYQT toolkit. In this paper the current state of the PANDORA development is presented and initial applications are shown.
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Pradal, Christophe, Samuel Dufour-Kowalski, Frédéric Boudon, Christian Fournier, and Christophe Godin. "OpenAlea: a visual programming and component-based software platform for plant modelling." Functional Plant Biology 35, no. 10 (2008): 751. http://dx.doi.org/10.1071/fp08084.
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The development of functional–structural plant models requires an increasing amount of computer modelling. All these models are developed by different teams in various contexts and with different goals. Efficient and flexible computational frameworks are required to augment the interaction between these models, their reusability, and the possibility to compare them on identical datasets. In this paper, we present an open-source platform, OpenAlea, that provides a user-friendly environment for modellers, and advanced deployment methods. OpenAlea allows researchers to build models using a visual programming interface and provides a set of tools and models dedicated to plant modelling. Models and algorithms are embedded in OpenAlea ‘components’ with well defined input and output interfaces that can be easily interconnected to form more complex models and define more macroscopic components. The system architecture is based on the use of a general purpose, high-level, object-oriented script language, Python, widely used in other scientific areas. We present a brief rationale that underlies the architectural design of this system and we illustrate the use of the platform to assemble several heterogeneous model components and to rapidly prototype a complex modelling scenario.
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Li, Zhiyong, Gang Yu, Xiuli He, Shaoxia Li, Xu Wang, Zixun Li, and Haiming Li. "Effects of interface conditions on heat and mass transfer during modeling of laser dissimilar welding." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 236, no. 3 (October 4, 2021): 1616–30. http://dx.doi.org/10.1177/09544062211013863.
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An improved 3 D heat and mass transfer model was developed to study the effects of interface conditions during modelling of laser dissimilar welding. In detail, the interface conditions consist of the physical processes at gas/liquid surface (e.g. free surface deformation and optical absorptance), substrate interface (e.g. mixture properties in liquid phase and thermal contact condition) and solid/liquid interface (e.g. fusion line). Their effects on heat and mass transfer are numerically and experimentally analyzed, which are all non-negligible in the welding modelling. In conclusion, free surface deformation influences convection flow and should be considered in the situation of micro-welding and high energy-input welding. Besides, the energy transfer between laser and substrate is more reasonably described by the optical absorptance expressed in polynomial function. The mass transfer induced variation of mixture properties is well described by the method based on time-dependent mixture fraction. Thermal resistance between clamp and substrate should be considered in the modelling of temperature field on macroscale. The joint conductance at substrate interface could be neglected when modelling heat and mass transfer inside the melt pool, while it should be calculated in the simulation of temperature distribution based on the mechanism of heat conduction. The obtained results in this paper provide a vital insight into the interface conditions in laser dissimilar welding process.
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Wang, Jian Ping, Jian Chen, and Chun Hong Li. "Research for Hydrological Modelling System Technology Based on OpenMI." Advanced Materials Research 347-353 (October 2011): 1806–15. http://dx.doi.org/10.4028/www.scientific.net/amr.347-353.1806.
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There has been a variety wide of hydrological simulation models, each model has its own characteristics. Hydrological modelling considers more and more detailed physical mechanism. And involved professional models also increased great significantly. Therefore, it is particularly important to establish an open unified model interface standards to make a data communication among different models and quickly formulate modelling systems suitable for the characteristics of target watershed. OpenMI emerged at the right moment to satisfy the requirements of above situations. The thesis bases on OpenMI to design hydrological modelling systems and inherits OpenMI framework of design, request/feedback mechanism and hierarchy facing to modules. This design can solve the assembly link problem of cross-language and multi-type models and make a beneficial attempt for hydrological modelling system efficient integration.
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Nouira, Dorra, Davide Tonazzi, Anissa Meziane, Laurent Baillet, and Francesco Massi. "Numerical and Experimental Analysis of Nonlinear Vibrational Response due to Pressure-Dependent Interface Stiffness." Lubricants 8, no. 7 (July 10, 2020): 73. http://dx.doi.org/10.3390/lubricants8070073.
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Modelling interface interaction with wave propagation in a medium is a fundamental requirement for several types of application, such as structural diagnostic and quality control. In order to study the influence of a pressure-dependent interface stiffness on the nonlinear response of contact interfaces, two nonlinear contact laws are investigated. The study consists of a complementary numerical and experimental analysis of nonlinear vibrational responses due to the contact interface. The laws investigated here are based on an interface stiffness model, where the stiffness property is described as a nonlinear function of the nominal contact pressure. The results obtained by the proposed laws are compared with experimental results. The nonlinearity introduced by the interface is highlighted by analysing the second harmonic contribution and the vibrational time response. The analysis emphasizes the dependence of the system response, i.e., fundamental and second harmonic amplitudes and frequencies, on the contact parameters and in particular on contact stiffness. The study shows that the stiffness–pressure trend at lower pressures has a major effect on the nonlinear response of systems with contact interfaces.
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Lin, Yu-Cheng. "USE OF BIM APPROACH TO ENHANCE CONSTRUCTION INTERFACE MANAGEMENT: A CASE STUDY." Journal of Civil Engineering and Management 21, no. 2 (January 30, 2015): 201–17. http://dx.doi.org/10.3846/13923730.2013.802730.
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Many interface events and problems occur during the construction phase of construction projects, such that tracking and controlling these are essential to construction management. Interface management (IM) has become the most important aspect of a sound project management strategy. IM affects project cost, scheduling, and quality both directly and indirectly in construction projects. Interface or changed events can be identified and tracked using IM, such that construction processes can be improved, while minimizing rework and reducing total project duration. Despite the many studies and discussions in academic and practical literature, systematic approaches and information platforms for managing interface events and problems during the construction are lacking. This study tracks and manages interface events using novel three-dimensional (3D) interface maps integrated into the building information modelling (BIM) approach. The BIM approach, which is utilized to retain interface information in a digital format, facilitates easy interface updating and transfer in the 3D CAD environment. The 3D-based interface maps provide users with an overview of interface events during a given construction project, such that users can track and manage interfaces virtually. The primary purpose of this study is to develop a web Construction BIM-based IM (ConBIM-IM) system for engineers to enhance interface information sharing and efficiency tracking in construction projects. The ConBIM-IM system is applied to a case study of a building project in Taiwan to verify its efficacy and demonstrate its IM effectiveness. Case study results show that the ConBIM-IM system is effective for managing interfaces using the BIM approach in construction.
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Junk, Philipp, and Christina Kiel. "HOMELETTE: a unified interface to homology modelling software." Bioinformatics 38, no. 6 (December 25, 2021): 1749–51. http://dx.doi.org/10.1093/bioinformatics/btab866.
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Abstract Summary Homology modelling, the technique of generating models of 3D protein structures based on experimental structures from related proteins, has become increasingly popular over the years. An abundance of different tools for model generation and model evaluation is available from various research groups. We present HOMELETTE, an interface which implements a unified programmatic access to these tools. This allows for the assemble of custom pipelines from pre- or self-implemented building blocks. Availability and implementation HOMELETTE is implemented in Python, compatible with version 3.6 and newer. It is distributed under the MIT license. Documentation and tutorials are available at Read the Docs (https://homelette.readthedocs.io/). The latest version of HOMELETTE is available on PyPI (https://pypi.org/project/homelette/) and GitHub (https://github.com/PhilippJunk/homelette). A full installation of the latest version of HOMELETTE with all dependencies is also available as a Docker container (https://hub.docker.com/r/philippjunk/homelette_template). Supplementary information Supplementary data are available at Bioinformatics online.
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Shi, Y. F., F. Yang, L. Gan, and H. L. He. "Modelling of plug and play interface for energy router based on IEC61850." IOP Conference Series: Earth and Environmental Science 94 (November 2017): 012151. http://dx.doi.org/10.1088/1755-1315/94/1/012151.
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Silvani, Claire, Stéphane Bonelli, and Thierry Désoyer. "Fracture of rigid solids: a discrete approach based on damaging interface modelling." Comptes Rendus Mécanique 335, no. 8 (August 2007): 455–60. http://dx.doi.org/10.1016/j.crme.2007.05.023.
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Krishnan, Yogeshwaran, Aaron Byrne, and Niall English. "Vibrational Study of Iodide-Based Room-Temperature Ionic-Liquid Effects on Candidate N719-Chromophore/Titania Interfaces for Dye-Sensitised Solar-Cell Applications from Ab-Initio Based Molecular-Dynamics Simulation." Energies 11, no. 10 (September 26, 2018): 2570. http://dx.doi.org/10.3390/en11102570.
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The accurate ab-initio modelling of prototypical and well-representative photo-active interfaces for candidate dye-sensitised solar cells is a challenging problem. To this end, using ab-initio molecular-dynamics (AIMD) simulation based on Density Functional Theory (DFT), the effects of explicit solvation by iodide-based, I−[bmim]+ room-temperature ionic liquids (RTILs) have been assessed on modelling a N719-chromophore sensitising dye adsorbed onto an anatase-titania (101) surface. In particular, the vibrational spectra for this model photo-active interface were calculated by means of Fourier transformed mass-weighted velocity autocorrelation functions. These were compared with experiment and against each other to gain an understanding of how using iodine-based RTILs as the electrolytic hole acceptor alters the dynamical properties of the widely-used N719 dye. The effect of Perdew-Burke-Ernzerhof (PBE) and Becke-Lee-Yang-Parr (BLYP) functionals on the vibrational spectra were assessed. PBE generally performed best in producing spectra which matched the typically expected experimental frequency modes.
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Dergachev, Konstantin, and Mvom Fransis Noel Essam. "Development of an automated system for creating and testing user interface prototypes." Ergodesign, no. 4 (November 18, 2022): 252–61. http://dx.doi.org/10.30987/2658-4026-2022-4-252-261.
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The process of developing a web application for creating and testing prototypes of user interfaces is described. The results of analysing the processes of developing and testing interfaces are given. Similar applications are analysed. Based on the analysis, the shortcomings of similar systems are identified and the requirements for the system being developed are formulated. Mathematical models are worked out for automated evaluation of the quality of a graphical user interface based on the harmony of colours, visibility of objects, fonts, alignment, balance, space between elements, compliance with proportions and unity of style. The functional modelling of the system is carried out. A database is developed for storing prototypes and their testing results. An interface for an automated system for designing and testing user interfaces is created. A methodology for automating testing of user interfaces is formulated and algorithms for automated testing of prototypes according to various criteria are created on its basis. The application is implemented in Java and Java Script languages. It allows one to: create interface prototypes for all types of screens; assess visual literacy and structure of interface prototypes; offer solutions to correct aesthetic and stylistic errors; plan tests and add test tasks; conduct A/B testing; determine the focus of attention and the user movement route; determine the average time to complete tasks; record video step by step during usability testing.
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Flipo, N., A. Mouhri, B. Labarthe, S. Biancamaria, A. Rivière, and P. Weill. "Continental hydrosystem modelling: the concept of nested stream–aquifer interfaces." Hydrology and Earth System Sciences 18, no. 8 (August 21, 2014): 3121–49. http://dx.doi.org/10.5194/hess-18-3121-2014.
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Abstract. Coupled hydrological-hydrogeological models, emphasising the importance of the stream–aquifer interface, are more and more used in hydrological sciences for pluri-disciplinary studies aiming at investigating environmental issues. Based on an extensive literature review, stream–aquifer interfaces are described at five different scales: local [10 cm–~10 m], intermediate [~10 m–~1 km], watershed [10 km2–~1000 km2], regional [10 000 km2–~1 M km2] and continental scales [>10 M km2]. This led us to develop the concept of nested stream–aquifer interfaces, which extends the well-known vision of nested groundwater pathways towards the surface, where the mixing of low frequency processes and high frequency processes coupled with the complexity of geomorphological features and heterogeneities creates hydrological spiralling. This conceptual framework allows the identification of a hierarchical order of the multi-scale control factors of stream–aquifer hydrological exchanges, from the larger scale to the finer scale. The hyporheic corridor, which couples the river to its 3-D hyporheic zone, is then identified as the key component for scaling hydrological processes occurring at the interface. The identification of the hyporheic corridor as the support of the hydrological processes scaling is an important step for the development of regional studies, which is one of the main concerns for water practitioners and resources managers. In a second part, the modelling of the stream–aquifer interface at various scales is investigated with the help of the conductance model. Although the usage of the temperature as a tracer of the flow is a robust method for the assessment of stream–aquifer exchanges at the local scale, there is a crucial need to develop innovative methodologies for assessing stream–aquifer exchanges at the regional scale. After formulating the conductance model at the regional and intermediate scales, we address this challenging issue with the development of an iterative modelling methodology, which ensures the consistency of stream–aquifer exchanges between the intermediate and regional scales. Finally, practical recommendations are provided for the study of the interface using the innovative methodology MIM (Measurements–Interpolation–Modelling), which is graphically developed, scaling in space the three pools of methods needed to fully understand stream–aquifer interfaces at various scales. In the MIM space, stream–aquifer interfaces that can be studied by a given approach are localised. The efficiency of the method is demonstrated with two examples. The first one proposes an upscaling framework, structured around river reaches of ~10–100 m, from the local to the watershed scale. The second example highlights the usefulness of space borne data to improve the assessment of stream–aquifer exchanges at the regional and continental scales. We conclude that further developments in modelling and field measurements have to be undertaken at the regional scale to enable a proper modelling of stream–aquifer exchanges from the local to the continental scale.
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Amirante, Dario, Vlad Ganine, Nicholas J. Hills, and Paolo Adami. "A Coupling Framework for Multi-Domain Modelling and Multi-Physics Simulations." Entropy 23, no. 6 (June 16, 2021): 758. http://dx.doi.org/10.3390/e23060758.
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This paper describes a coupling framework for parallel execution of different solvers for multi-physics and multi-domain simulations with an arbitrary number of adjacent zones connected by different physical or overlapping interfaces. The coupling architecture is based on the execution of several instances of the same coupling code and relies on the use of smart edges (i.e., separate processes) dedicated to managing the exchange of information between two adjacent regions. The collection of solvers and coupling sessions forms a flexible and modular system, where the data exchange is handled by independent servers that are dedicated to a single interface connecting two solvers’ sessions. Accuracy and performance of the strategy is considered for turbomachinery applications involving Conjugate Heat Transfer (CHT) analysis and Sliding Plane (SP) interfaces.
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Imfeld, Gwenaël, Sylvain Payraudeau, Julien Tournebize, Sabine Sauvage, Francis Macary, Cédric Chaumont, Anne Probst, et al. "The Role of Ponds in Pesticide Dissipation at the Agricultural Catchment Scale: A Critical Review." Water 13, no. 9 (April 26, 2021): 1202. http://dx.doi.org/10.3390/w13091202.
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Ponds in agricultural areas are ubiquitous water retention systems acting as reactive biogeochemical hotspots controlling pesticide dissipation and transfer at the catchment scale. Several issues need to be addressed in order to understand, follow-up and predict the role of ponds in limiting pesticide transfer at the catchment scale. In this review, we present a critical overview of functional processes underpinning pesticide dissipation in ponds. We highlight the need to distinguish degradative and non-degradative processes and to understand the role of the sediment-water interface in pesticide dissipation. Yet it is not well-established how pesticide dissipation in ponds governs the pesticide transfer at the catchment scale under varying hydro-climatic conditions and agricultural operation practices. To illustrate the multi-scale and dynamic aspects of this issue, we sketch a modelling framework integrating the role of ponds at the catchment scale. Such an integrated framework can improve the spatial prediction of pesticide transfer and risk assessment across the catchment-ponds-river continuum to facilitate management rules and operations.
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Sandnes, Frode Eika, and Yuriy Lianguzov. "Quick and Easy 3D modelling for All: A Browser-based 3D-Sketching Framework." International Journal of Online Engineering (iJOE) 13, no. 11 (November 22, 2017): 120. http://dx.doi.org/10.3991/ijoe.v13i11.7734.
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<span lang="EN-US">Modelling in 3D is considered time-consuming and difficult, relying on special skills. To make matters worse, there are currently no user interface conventions for how to work with 3D data and different modelling applications adopt varying interaction techniques. This paper thus presents a framework for simple 3D modelling based on 2D drawings of height maps. The framework is intended to be quick and easy to use for untrained users and no special software is needed as the application runs in the browser. An experimental evaluation confirmed that all of the eight participants successfully managed to complete simple modelling tasks in just a few minutes.</span>
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Okeke, SI, N. Harrison, and M. Tong. "Thermomechanical modelling for the linear friction welding process of Ni-based superalloy and verification." Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 234, no. 5 (January 22, 2020): 796–815. http://dx.doi.org/10.1177/1464420719900780.
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This paper presents a fully coupled thermomechanical model for the linear friction welding process of Inconel-718 nickel-based superalloy by using the finite element method. Friction heat, plastic work, and contact formulation were taken into account for two deformable plastic bodies oscillating relative to each other under large compressive force. The modelling results of the thermal history at the weldline interface and thermal field at a distance away from the rubbing surfaces were compared to instrumented data sourced from related publications for model verification. Optimal linear friction welding process parameters were identified via comparison of weld temperature to the liquidus temperature of Inconel-718 alloy. Comparison of interface temperature showed a consistent range of values above the solidus melting temperature (1250 ℃) and below the liquidus melting temperature (1360 ℃) of Inconel-718 alloy. For the first time, a visible linear friction welding process window is identified using a thermomechanical computational modelling method. Through computational modelling, the influence of welding process parameters on the heat transfer and deformation of weld was systematically investigated.
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Mourtzis, Dimitris, John Angelopoulos, and Nikos Panopoulos. "Closed-Loop Robotic Arm Manipulation Based on Mixed Reality." Applied Sciences 12, no. 6 (March 14, 2022): 2972. http://dx.doi.org/10.3390/app12062972.
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Robotic manipulators have become part of manufacturing systems in recent decades. However, in the realm of Industry 4.0, a new type of manufacturing cell has been introduced—the so-called collaborative manufacturing cell. In such collaborative environments, communication between a human operator and robotic manipulators must be flawless, so that smooth collaboration, i.e., human safety, is ensured constantly. Therefore, engineers have focused on the development of suitable human–robot interfaces (HRI) in order to tackle this issue. This research work proposes a closed-loop framework for the human–robot interface based on the utilization of digital technologies, such as Mixed Reality (MR). Concretely, the framework can be realized as a methodology for the remote and safe manipulation of the robotic arm in near real-time, while, simultaneously, safety zones are displayed in the field of view of the shop-floor technician. The method is based on the creation of a Digital Twin of the robotic arm and the setup of a suitable communication framework for continuous and seamless communication between the user interface, the physical robot, and the Digital Twin. The development of the method is based on the utilization of a ROS (Robot Operating System) for the modelling of the Digital Twin, a Cloud database for data handling, and Mixed Reality (MR) for the Human–Machine Interface (HMI). The developed MR application is tested in a laboratory-based machine shop, incorporating collaborative cells.
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Roberts, Shelley, and Avi Parush. "A Dynamic Model Balancing User Control and Workload in Automatic and Adaptive Systems." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 51, no. 4 (October 2007): 186–90. http://dx.doi.org/10.1177/154193120705100409.
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Current interactive systems are criticized for having complex interfaces that overload users with information. Two possible solutions to manage overload are automatic interfaces that augment user capabilities, and user-controlled systems that provide support. These two types of interfaces introduce a trade-off: On the one hand, automatic interfaces alleviate workload but create performance problems associated with the absence of control. On the other hand, user-controlled interfaces afford users more control, which may come with additional workload. Based on the analysis of adaptive user interfaces and automation, a model is proposed where automatic and user interface adaptation are in a multidimensional and continuum-based space, allowing for modelling dynamic changes to the roles the human and machine play at various stages of interaction.
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Dong, Yan, Xiaodong Dai, Lianyu Zhao, Li Gao, Zongli Xie, and Jianhua Zhang. "Review of Transport Phenomena and Popular Modelling Approaches in Membrane Distillation." Membranes 11, no. 2 (February 8, 2021): 122. http://dx.doi.org/10.3390/membranes11020122.
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In this paper, the transport phenomena in four common membrane distillation (MD) configurations and three popular modelling approaches are introduced. The mechanism of heat transfer on the feed side of all configurations are the same but are distinctive from each other from the membrane interface to the bulk permeate in each configuration. Based on the features of MD configurations, the mechanisms of mass and heat transfers for four configurations are reviewed together from the bulk feed to the membrane interface on the permeate but reviewed separately from the interface to the bulk permeate. Since the temperature polarisation coefficient cannot be used to quantify the driving force polarisation in Sweeping Gas MD and Vacuum MD, the rate of driving force polarisation is proposed in this paper. The three popular modelling approaches introduced are modelling by conventional methods, computational fluid dynamics (CFD) and response surface methodology (RSM), which are based on classic transport mechanism, computer science and mathematical statistics, respectively. The default assumptions, area for applications, advantages and disadvantages of those modelling approaches are summarised. Assessment and comparison were also conducted based on the review. Since there are only a couple of full-scale plants operating worldwide, the modelling of operational cost of MD was only briefly reviewed. Gaps and future studies were also proposed based on the current research trends, such as the emergence of new membranes, which possess the characteristics of selectivity, anti-wetting, multilayer and incorporation of inorganic particles.
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Shibayama, Naoyuki, Yiwen Zhang, Tetsuo Satake, and Mutsumi Sugiyama. "Modelling of an equivalent circuit for Cu2ZnSnS4- and Cu2ZnSnSe4-based thin film solar cells." RSC Advances 7, no. 41 (2017): 25347–52. http://dx.doi.org/10.1039/c7ra02274c.
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Monfared, R. P., A. Hodgson, B. A. Bowen, and A. A. West. "Implementing a model-based generic user interface for computer integrated manufacturing systems." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 212, no. 7 (July 1, 1998): 501–16. http://dx.doi.org/10.1243/0954405981515806.
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Computer integrated manufacturing (CIM) systems are complex in terms of performing a variety of activities, maintaining a range of information and involving various classes of users with differing levels of knowledge and skills, and different levels and time spans of decision making. Much investment and effort has been made to formalize and automate the performance of the CIM elements in a manufacturing system. However, each CIM subsystem will typically have its own terminology, procedures and presentation formats. This places a heavy and unnecessary burden on users, resulting in frustration and reduced effectiveness. Research has been carried out by the Manufacturing Systems Integration Research Institute at Lough-borough University towards the generation of a user-oriented interface for CIM systems. This research has resulted in a conceptual approach, which incorporates a generic user—task model, which enables the generation of flexible and reusable software components to form a semigeneric user interface for CIM users. The CIM user interface provides presentation tools to monitor and control the performance of the CIM elements. Advanced modelling and integration technologies have been deployed to enable the system to cover a wide area of manufacturing domains. These technologies include modern manufacturing modelling architectures such as CIMOSA and GERAM, and advanced communication techniques such as those used by Web-based software applications in manufacturing environments. The implementation issues of the generic user interface concept, together with its application within an industrial case study are discussed in this paper.
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Aslam, Kousar, Loek Cleophas, Ramon Schiffelers, and Mark van den Brand. "Interface protocol inference to aid understanding legacy software components." Software and Systems Modeling 19, no. 6 (June 28, 2020): 1519–40. http://dx.doi.org/10.1007/s10270-020-00809-2.
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Abstract High-tech companies are struggling today with the maintenance of legacy software. Legacy software is vital to many organizations as it contains the important business logic. To facilitate maintenance of legacy software, a comprehensive understanding of the software’s behavior is essential. In terms of component-based software engineering, it is necessary to completely understand the behavior of components in relation to their interfaces, i.e., their interface protocols, and to preserve this behavior during the maintenance activities of the components. For this purpose, we present an approach to infer the interface protocols of software components from the behavioral models of those components, learned by a blackbox technique called active (automata) learning. To validate the learned results, we applied our approach to the software components developed with model-based engineering so that equivalence can be checked between the learned models and the reference models, ensuring the behavioral relations are preserved. Experimenting with components having reference models and performing equivalence checking builds confidence that applying active learning technique to reverse engineer legacy software components, for which no reference models are available, will also yield correct results. To apply our approach in practice, we present an automated framework for conducting active learning on a large set of components and deriving their interface protocols. Using the framework, we validated our methodology by applying active learning on 202 industrial software components, out of which, interface protocols could be successfully derived for 156 components within our given time bound of 1 h for each component.
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Kumar, P. V. S. K., Amirtham Rajagopal, and Manoj Pandey. "Plasticity based interface model for failure modelling of unreinforced masonry under cyclic loading." Vietnam Journal of Mechanics 42, no. 3 (September 27, 2020): 321–38. http://dx.doi.org/10.15625/0866-7136/15479.
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In this work our objective is to understand the failure behaviour of unreinforced masonry under in-plane cyclic loading. For this purpose we proposed a plasticity based interface model consists of a single yield surface criteria which is a direct extension of Mohr-Coulomb criteria with a tension cut and compression cap and a back stress vector is introduced as a mixed hardening law variable in the adopted yield surface to capture the unloading/reloading behaviour of masonry under cyclic loading. A simplified micromechanical interface modelling approach is adopted to capture all the failure modes of masonry. The integration of the differential constitutive equation is done by using implicit Euler backward integration approach and the obtained non-linear set of equations are solved by a combined local/global Newton solver. The proposed constitutive model is implemented in ABAQUS by writing UMAT (user-defined subroutine) and the obtained numerical results are compared with experimental results available in the literature.
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Wang, Fang, Zhi Qian Chen, and Qing Fang Meng. "Multiscale Modelling of Progressive Damage in Fiber-Reinforced Composites." Advanced Materials Research 250-253 (May 2011): 213–17. http://dx.doi.org/10.4028/www.scientific.net/amr.250-253.213.
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A multiscale approach based upon micromechanical fiber/matrix/interface scale in fiber-reinforced composites was established to simulate the progressive damage at macroscopic scales. The composite is reinforced with Boron fibers under conditions of matrix tensile yield and interface debonding. An analytical solution using a superimposition technique within the framework of shear-lag model was employed to derive stress profiles for any configuration of breaks under applied loading. A simulation scheme coupled with Monte-Carlo method was proposed to investigate evolution of damage-plasticity of the composites.
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Zehsaz, Mohammad, Farid Vakili Tahami, and Vahid Khamesi. "Shape Optimization of Bi-Material Bonded Joint Based on Particle Swarm Algorithm." Mapta Journal of Mechanical and Industrial Engineering (MJMIE) 2, no. 1 (April 20, 2018): 8–15. http://dx.doi.org/10.33544/mjmie.v2i1.44.
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In this paper, interface of bi-material has been optimized using ANSYS parametric Design Language (APDL) in order to reduce the stress concentration without stress singularity. In this code, Particle swarm algorithm has been used as an optimization algorithm. The present approach is consisted of two steps: first, the minimum critical angle where stress singularity occurs is determined using characteristic equation; second, geometrical modelling of bi-material interface edge is done using Bezier curve. The results show that with constant Poisson’s ratio, stress concentration decreases by increasing the ratio of elastic modulus. Also, with changing the ratio of elastic modulus, the obtained optimum interface is changed. Numerical examples display the stress concentration reduces significantly in computational optimal curve in comparison to traditional circular shapes.
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Gavrilov, S. A., A. S. Kyzdarbekova, S. S. Reznikov, E. A. Kobets, and N. N. Gorlushkina. "Modelling a project for the development of a neurocomputer interface based on EMG." IOP Conference Series: Materials Science and Engineering 940 (October 8, 2020): 012018. http://dx.doi.org/10.1088/1757-899x/940/1/012018.
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