Relevant bibliographies by topics / Parametric modelling

Academic literature on the topic 'Parametric modelling'

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Published: 4 June 2021
Last updated: 8 June 2024

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Journal articles on the topic "Parametric modelling"

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Melenberg, Bertrand, and Arthur Van Soest. "Parametric and semi-parametric modelling of vacation expenditures." Journal of Applied Econometrics 11, no. 1 (January 1996): 59–76. http://dx.doi.org/10.1002/(sici)1099-1255(199601)11:1<59::aid-jae371>3.0.co;2-a.

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Suheri, Viraldy Abizar, Amay Suherman, and Mumu Komaro. "THE DEVELOPMENT OF PTC CREO PARAMETRIC WEBSITE MODULE FOR BASIC PARAMETRIC MODELLING WORK." Journal of Mechanical Engineering Education 10, no. 1 (June 20, 2023): 44–53. http://dx.doi.org/10.17509/jmee.v10i1.58223.

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The development of the PTC Creo Parametic website-based learning module for basic modeling work aims to facilitate DPTM UPI students in developing basic parametric modeling skills. The method used is Research Development (RD) with a qualitative approach. In order for the development flow to be directed, the process of developing this learning module uses the Hannafin and Peck development model. The research instrument for module testing used questionnaires, interviews, and observations to find out how the DPTM UPI students responded. This research produced a website-based PTC Creo Parametric learning module for basic parametric modeling work that can facilitate DPTM UPI students and get positive responses from DPTM UPI students. In addition, learning modules provide benefits for users because they are supported by a website-based multitopic scheme, so users can easily access learning materials.
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McLERNON, D. C. "Parametric modelling of cyclostationary processes." International Journal of Electronics 72, no. 3 (March 1992): 383–99. http://dx.doi.org/10.1080/00207219208925580.

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Chua, C. K., and S. L. Lye. "Parametric modelling of drinking bottles." Integrated Manufacturing Systems 9, no. 2 (April 1998): 99–108. http://dx.doi.org/10.1108/09576069810202014.

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Mukhopadhyay, S., and P. Sircar. "Parametric modelling of ECG signal." Medical & Biological Engineering & Computing 34, no. 2 (March 1996): 171–74. http://dx.doi.org/10.1007/bf02520024.

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Caraka, Rezzy Eko, and Wawan Sugiyarto. "Inflation Rate Modelling in Indonesia." ETIKONOMI 15, no. 2 (September 28, 2016): 111–24. http://dx.doi.org/10.15408/etk.v15i2.3260.

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The purposes of this research were to analyse: (i) Modelling the inflation rate in Indonesia with parametric regression. (ii) Modelling the inflation rate in Indonesia using non-parametric regression spline multivariable (iii) Determining the best model the inflation rate in Indonesia (iv) Explaining the relationship inflation model parametric and non-parametric regression spline multivariable. Based on the analysis using the two methods mentioned the coefficient of determination (R2) in parametric regression of 65.1% while non-parametric amounted to 99.39%. To begin with, the factor of money supply or money stock, crude oil prices and the rupiah exchange rate against the dollar is significant on the rate of inflation. The stability of inflation is essential to support sustainable economic development and improve people's welfare. In conclusion, unstable inflation will complicate business planning business activities, both in production and investment activities as well as in the pricing of goods and services produced.DOI: 10.15408/etk.v15i2.3260
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Sunarya, Wendy, Jackobus Ade Prasetya Seputra, and Afif Fajar Zakariya. "Parametric modeling practice for the first-year architecture students learning." ARTEKS : Jurnal Teknik Arsitektur 8, no. 2 (August 1, 2023): 293–304. http://dx.doi.org/10.30822/arteks.v8i2.2189.

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Parametric modelling has been regarded as a prospective skill both in architectural education and practice. It offers capabilities for designers to instantly generate numerous design options and create complex geometries, which can enhance the design creativity. Realizing its potential and capabilities, this study investigates how parametric modelling can be practiced in early architectural education for improving students’ creativity and design skill. The findings of this study are based on the observation of the parametric modelling workshop participated by 150 first-year architecture students in Indonesia. It is concluded that parametric modelling can be feasibly practiced by first-year students as a medium to enhance design creativity. Additionally, parametric modelling can improve students’ design intuition in some respects, that can smooth the design skill development in architectural learning. The lessons for the effective parametric design learning were also discussed in this study, including metaphorical thinking in parametric exploration, active communication between student and lecturer, and emphasis on the inspirational tool.
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Wang, Ruibin, Jianjun Zhang, Shaojun Bian, and Lihuan You. "A survey of parametric modelling methods for designing the head of a high-speed train." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 232, no. 7 (February 7, 2018): 1965–83. http://dx.doi.org/10.1177/0954409718756558.

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With the continuous increase of the running speed, the head shape of a high-speed train turns out to be the critical factor to boost the speed further. In order to reduce the time required to design the head of a high-speed train and to improve the modelling efficiency, various parametric modelling methods have been widely applied in the optimization design of the head of a high-speed train to obtain an optimal head shape so that the aerodynamic effect acting on the head of a high-speed train can be reduced and more energy can be saved. This paper reviews these parametric modelling methods and classifies them into four categories: two-dimensional, three-dimensional, CATIA-based, and mesh deformation-based parametric modelling methods. Each of the methods is introduced, and the advantages and disadvantages of these methods are identified. The simulation results are presented to demonstrate that the aerodynamic performance of the optimal models constructed by these parametric modelling methods has been improved when compared with the numerical calculation results of the original models or the prototype models of running trains. Since different parametric modelling methods used different original models and optimization methods, few publications could be found which compare the simulation results of the aerodynamic performance among different parametric modelling methods. In spite of this, these parametric modelling methods indicate that more local shape details will lead to more accurate simulation results, and fewer design variables will result in higher computational efficiency. Therefore, the ability of describing more local shape details with fewer design variables could serve as a main specification to assess the performance of various parametric modelling methods. The future research directions may concentrate on how to improve such ability.
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Yang, X., M. Koehl, and P. Grussenmeyer. "PARAMETRIC MODELLING OF AS-BUILT BEAM FRAMED STRUCTURE IN BIM ENVIRONMENT." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W3 (February 23, 2017): 651–57. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w3-651-2017.

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A complete documentation and conservation of a historic timber roof requires the integration of geometry modelling, attributional and dynamic information management and results of structural analysis. Recently developed as-built Building Information Modelling (BIM) technique has the potential to provide a uniform platform, which provides possibility to integrate the traditional geometry modelling, parametric elements management and structural analysis together. <br><br> The main objective of the project presented in this paper is to develop a parametric modelling tool for a timber roof structure whose elements are leaning and crossing beam frame. Since Autodesk Revit, as the typical BIM software, provides the platform for parametric modelling and information management, an API plugin, able to automatically create the parametric beam elements and link them together with strict relationship, was developed. The plugin under development is introduced in the paper, which can obtain the parametric beam model via Autodesk Revit API from total station points and terrestrial laser scanning data. The results show the potential of automatizing the parametric modelling by interactive API development in BIM environment. It also integrates the separate data processing and different platforms into the uniform Revit software.
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Zhang, Chi, Yuan Li, Jinhai Zheng, Mingxiao Xie, Jian Shi, and Gang Wang. "Parametric modelling of nearshore wave reflection." Coastal Engineering 169 (October 2021): 103978. http://dx.doi.org/10.1016/j.coastaleng.2021.103978.

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Dissertations / Theses on the topic "Parametric modelling"

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Ceran, Murat. "Parametric human spine modelling." Thesis, Loughborough University, 2006. https://dspace.lboro.ac.uk/2134/7958.

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3-D computational modelling of the human spine provides a sophisticated and cost-effective medium for bioengineers, researchers, and ergonomics designers in order to study the biomechanical behaviour of the human spine under different loading conditions. Developing a generic parametric computational human spine model to be employed in biomechanical modelling introduces a considerable potential to reduce the complexity of implementing and amending the intricate spinal geometry. The main objective of this research is to develop a 3-D parametric human spine model generation framework based on a command file system, by which the parameters of each vertebra are read from the database system, and then modelled within commercial 3-D CAD software. A novel data acquisition and generation system was developed as a part of the framework for determining the unknown vertebral dimensions, depending on the correlations between the parameters estimated from existing anthropometrical studies in the literature. The data acquisition system embodies a predictive methodology that comprehends the relations between the features of the vertebrae by employing statistical and geometrical techniques. Relations amongst vertebral parameters such as golden ratio were investigated and successfully implemented into the algorithms. The validation of the framework was carried out by comparing the developed 3-D computational human spine models against various real life human spine data, where good agreements were achieved. The constructed versatile framework possesses the capability to be utilised as a basis for quickly and effectively developing biomechanical models of the human spine such as finite element models.
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Johansson, Anders Torbjörn. "Parametric modelling of cetacean calls." Thesis, University of Southampton, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.409609.

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Shannon, Sean Matthew. "Probabilistic acoustic modelling for parametric speech synthesis." Thesis, University of Cambridge, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708415.

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Abdelaal, Medhat Mohamed Ahmed. "Modelling the fisheries of lake manzala, egypt, using parametric and non-parametric statistical methods." Thesis, University of Plymouth, 1999. http://hdl.handle.net/10026.1/2572.

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Much attention has been given to the economic aspects of the fisheries in Egypt, while building a statistical or mathematical model for fish production has received little attention. This study is devoted to a comprehensive assessment of Lake Manzala fisheries; past, present and future. Lake Manzala is one of the main fisheries resources in Egypt, and there is evidence that the fisheries have been over-exploited in recent years. The study objectives were to determine the factors that affect fish catches by individual vessels, to compare between parametric and non-parametric models of the fish catches, and to produce a mathematical model of stock behaviour which can be used to suggest policies to manage the Lake Manzala fishery. A new method of estimating the carrying capacity of the lake and intrinsic growth rate of Tilapia and its four species has been developed. Simulation had to be used to get error estimates of the biomass parameter estimates using the new method. Three catch strategies have been investigated and assessed, with discounted utility of future yields. Two ways of modelling individual vessel catches in relation to their effort characteristics, a parametric and non-parametric analysis, have been investigated. Using generalised additive model gave an improved fit to the survey data compared with the parametric analysis. It also gave a lower allowable fleet size which leads to more conservative management policy. A simulation approach was used to investigate the uncertainty in the predicted catches and stock levels, and to give insight into the risks associated with various levels of control. There was no evidence that a management strategy which aimed to fish at maximum sustainable yield would put the stock at risk.
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Simpson, Andrew G. "Parametric modelling of energy consumption in road vehicles /." [St. Lucia, Qld.], 2005. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe.pdf.

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Kolossiatis, Michalis. "Modelling via normalisation for parametric and nonparametric inference." Thesis, University of Warwick, 2009. http://wrap.warwick.ac.uk/2769/.

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Bayesian nonparametric modelling has recently attracted a lot of attention, mainly due to the advancement of various simulation techniques, and especially Monte Carlo Markov Chain (MCMC) methods. In this thesis I propose some Bayesian nonparametric models for grouped data, which make use of dependent random probability measures. These probability measures are constructed by normalising infinitely divisible probability measures and exhibit nice theoretical properties. Implementation of these models is also easy, using mainly MCMC methods. An additional step in these algorithms is also proposed, in order to improve mixing. The proposed models are applied on both simulated and real-life data and the posterior inference for the parameters of interest are investigated, as well as the effect of the corresponding simulation algorithms. A new, n-dimensional distribution on the unit simplex, that contains many known distributions as special cases, is also proposed. The univariate version of this distribution is used as the underlying distribution for modelling binomial probabilities. Using simulated and real data, it is shown that this proposed model is particularly successful in modelling overdispersed count data.
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Mineault, Patrick. "Parametric modelling of visual cortex at multiple scales." Thesis, McGill University, 2014. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=123020.

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The visual system is confronted with the daunting task of extracting behaviourally relevant visual information from noisy and ambiguous patterns of luminance falling on the retina. It solves this problem through a hierarchical architecture, in which the visual stimulus is iteratively re-encoded into ever more abstract representations which can drive behaviour. This thesis explores the question of how the computations performed by neurons in the visual hierarchy create behaviourally relevant representations. This question requires probing the visual system at multiple scales: computation is the role of single neurons and ensembles of neurons; representation is the function of multiple neurons within an area; hierarchical processing is an emergent process which involves multiple areas; and behaviour is defined at the full scale of the system, the psychophysical observer. To study visual processing at multiple scales, I propose to develop and apply parametric modelling methods in the context of systems identification. Systems identification seeks to establish the deterministic relationship between the input and the output of a system. Systems identification has proven particularly useful in the study of visual processing, where the input to the system can be easily controlled via sensory stimulation.Parametric modeling, built on the theory of Generalized Linear Models (GLMs), furnishes a common framework to analyze signals with different statistical properties which occur in the analysis of neural systems: spike trains, multi-unit activity, local field potentials and psychophysical decisions.In Chapter 2, I develop the parametric modeling framework which is used throughout this thesis in the context of psychophysical classification images. Results show that parametric modeling can infer a psychophysical observer's decision process with fewer trials than previously proposed methods. This allows the exploration of more complex, and potentially more informative, models of decision processes while retaining statistical tractability.In Chapter 3, I extend and apply this framework to the analysis of visual representations at the level of neuronal ensembles in area V4. The results show that it is possible to infer, from multi-unit activity and local field potential (LFP) signals, the representation of visual space at a fine-grained scale over several millimeters of cortex. Analysis of the estimated visual representations reveals that LFPs reflect both local sources of input and global biases in visual representation. These results resolve a persistent puzzle in the literature regarding the spatial reach of the local field potential.In Chapter 4, I extend and apply the same framework to the analysis of single-neuron responses in area MST of the dorsal visual stream. Results reveal that MST responses can be explained by the integration of their afferent input from area MT, provided that this integration is nonlinear. Estimated models reveal long suspected, but previously unconfirmed receptive field organization in MST neurons that allow them to respond to complex optic flow patterns. This receptive field organization and nonlinear integration allows more accurate estimation of the velocity of approaching objects from the population of MST neurons, thus revealing their possible functional role in vergence control and object motion estimation.Put together, these results demonstrate that with powerful statistical methods, it is possible to infer the nature of visual representations at multiple scales. In the discussion, I show how these results may be expanded to gain a better understanding of hierarchical visual processing at large.
Le système visuel est confronté à la difficile tâche d'extraire de l'information utile au comportement à partir de motifs complexes et ambigus détectés par la rétine. Il résout ce problème grâce à une architecture hiérarchique, dans laquelle le stimulus visuel est itérativement ré-encodé dans une représentation abstraite. Ce mémoire explore la question suivante : comment les computations performées par des neurones de la hiérarchie visuelle créent-elles des représentations permettant des comportements complexes?Cette question nécessite l'étude du système visuel à plusieurs échelles : la computation est le rôle de neurones et d'ensembles de neurones; la représentation est une fonction des neurones dans une aire du cerveau; la hiérarchie émerge de la communication entre de multiples aires du cerveau; et le comportement est défini à l'échelle du système visuel complet, l'observateur psychophysique.Afin d'étudier le système visuel à de multiple échelles, je développe et applique des méthodes de modélisation paramétrique dans le cadre de l'identification de système. Celle-ci a pour but d'établir la relation déterministe entre l'entrée d'un système et sa sortie. L'identification de système est particulièrement utile dans l'étude de la vision, où l'entrée du système peut être facilement contrôlée par stimulation sensorielle.La modélisation paramétrique, bâtie sur la théorie des modèles linéaires généralisés, offre un paradigme commun pour analyser des signaux ayant des propriétés statistiques disparates, souvent rencontrés dans l'étude du système nerveux: les potentiels d'action, l'activité d'ensemble de neurones, et les décisions psychophysiques.Dans le 2ème chapitre, je développe le paradigme d'analyse par modélisation paramétrique qui sera utilisé tout au long de ce mémoire dans le contexte des images de classification psychophysiques. Je démontre qu'il est possible d'inférer, grâce à ces méthodes, le processus décisionnel d'un observateur psychophysique avec moins de données que ce qui était précédemment possible. Cette avancée permet l'exploration de modèles psychophysiques plus complexes, et potentiellement plus informatifs sur le processus décisionnel de l'observateur.Dans le 3ème chapitre, j'applique ce paradigme à l'analyse des représentations visuelles au niveau d'ensembles neuronaux dans l'aire V4 du système visuel. Les résultats démontrent qu'il est possible, à partir de l'activité des champs de potentiel locaux (CPL), d'inférer la représentation corticale de l'espace visuel sur une échelle de plusieurs millimètres. Je démontre ainsi que les CPL reflètent à la fois des sources synaptiques locales et des biais globaux dans la représentation visuelle. Ces résultats résolvent une controverse dans la littérature concernant l'intégration spatiale des CPL.Dans le 4ème chapitre, j'applique ce même paradigme dans l'analyse de neurones dans l'aire MST du système visuel dorsal. Je révèle que les réponses dans MST peuvent être expliquées par l'intégration de sources afférentes provenant de l'aire MT; cependant, cette intégration se révèle nonlinéaire. Cette analyse révèle des propriétés longtemps soupçonnées mais jusqu'ici non confirmées des champs réceptifs des neurones dans MST; celles-ci leur permettent de communiquer de l'information sur les motifs de flux optique complexes. Cette organisation des champs réceptifs et l'intégration nonlinéaire permet d'extraire plus facilement la vélocité d'objets s'approchant de l'observateur à partir des réponses de la population de neurones dans MST, révélant un rôle insoupçonné de ces neurones dans l'estimation de la vélocité des objets.Pris ensemble, ces résultats démontrent qu'à l'aide de méthodes statistiques puissantes, il est possible d'inférer la nature des représentations visuelles à de multiples échelles. Dans la discussion, je démontre comment généraliser ces résultats afin d'obtenir une meilleure compréhension des computations hiérarchiques dans le système visuel.
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Lyons, Sean Christopher. "Numerical modelling of a nanosecond optical parametric oscillator." Thesis, University of Strathclyde, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248729.

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Pericleous, Paraskevi. "Parametric joint modelling for longitudinal and survival data." Thesis, University of East Anglia, 2016. https://ueaeprints.uea.ac.uk/59673/.

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Joint modelling is the simultaneous modelling of longitudinal and survival data, while taking into account a possible association between them. A common approach in joint modelling studies is to assume that the repeated measurements follow a lin- ear mixed e�ects model and the survival data is modelled using a Cox proportional hazards model. The Cox model, however, requires a strong proportionality assump- tion, which seems to be violated quite often. We, thus, propose the use of parametric survival models. Additionally, joint modelling literature mainly deals with right- censoring only and does not consider left-truncation, which can cause bias. The joint model proposed here considers left-truncation and right-censoring.
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Motta, Enrico. "Reusable components for knowledge modelling." Thesis, Open University, 1998. http://oro.open.ac.uk/57879/.

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In this work I illustrate an approach to the development of a library of problem solving components for knowledge modelling. This approach is based on an epistemological modelling framework, the Task/Method/Domain/Application (TMDA) model, and on a principled methodology, which provide an integrated view of both library construction and application development by reuse. The starting point of the proposed approach is given by a task ontology. This formalizes a conceptual viewpoint over a class of problems, thus providing a task-specific framework, which can be used to drive the construction of a task model through a process of model-based knowledge acquisition. The definitions in the task ontology provide the initial elements of a task-specific library of problem solving components. In order to move from problem specification to problem solving, a generic, i.e. taskindependent, model of problem solving as search is introduced, and instantiated in terms of the concepts in the relevant task ontology, say T. The result is a task-specific, but method-independent, problem solving model. This generic problem solving model provides the foundation from which alternative problem solving methods for a class of tasks can be defined. Specifically, the generic problem solving model provides i) a highly generic method ontology, say M; ii) a set of generic building blocks (generic tasks), which can be used to construct task-specific problem solving methods; and iii) an initial problem solving method, which can be characterized as the most generic problem solving method, which subscribes to M and is applicable to T. More specific problem solving methods can then be (re-)constructed from the generic problem solving model through a process of method/ontology specialization and method-to-task application. The resulting library of reusable components enjoys a clear theoretical basis and provides robust support for reuse. In the thesis I illustrate the approach in the area of parametric design.
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Books on the topic "Parametric modelling"

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Shih, Randy H. Parametric modelling with Pro Engineer. 2nd ed. Mission, Ks: Schroff Development Corporation, 2000.

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Mughal, Yar M. A Parametric Framework for Modelling of Bioelectrical Signals. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-287-969-1.

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Donnelly, Peter Gerard. Adaptive parametric modelling of narrowband signals for sonar applications. [S.l: The Author], 1993.

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Gavin, Joseph Mark. Parametric modelling of narrowband signals using LMS and MSANF algorithms. [s.l: The Author], 1994.

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Ansell, J. I. Practical aspects of modelling of repairable systems data using semi-parametric models. Edinburgh: University of Edinburgh, Department of Business Studies, 1994.

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Motta, E. Reusable components for knowledge modelling: Case studies in parametric design problem solving. Amsterdam: IOS Press, 2000.

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Ellis, Glenn W. Modelling earthquake ground motions in seismically active regions using parametric time series methods. Buffalo, NY: National Center for Earthquake Engineering Research, 1987.

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Martin, Vance L. A generalized parametric exponential family approach to modelling the distribution of exchange rate movements. Parkville, Vic: Dept. of Economics, University of Melbourne, 1991.

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United States. National Aeronautics and Space Administration., ed. Brayton power conversion system parametric design modelling for nuclear electric propulsion (task order no. 18). [Washington, DC]: National Aeronautics and Space Administration, 1993.

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United States. National Aeronautics and Space Administration., ed. Brayton power conversion system parametric design modelling for nuclear electric propulsion (task order no. 18). [Washington, DC]: National Aeronautics and Space Administration, 1993.

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Book chapters on the topic "Parametric modelling"

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Barnhill, R. E., and T. M. Frost. "Parametric Offset Surface Approximation." In Geometric Modelling, 1–34. Vienna: Springer Vienna, 1995. http://dx.doi.org/10.1007/978-3-7091-7584-2_1.

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Katz, Neil. "Algorithmic Modelling, Parametric Thinking." In Distributed Intelligence in Design, 213–31. Oxford, UK: Wiley-Blackwell, 2011. http://dx.doi.org/10.1002/9781444392395.ch14.

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Barnhill, Robert E., Gerald E. Farin, and Qian Chen. "Constant-Radius Blending of Parametric Surfaces." In Geometric Modelling, 1–20. Vienna: Springer Vienna, 1993. http://dx.doi.org/10.1007/978-3-7091-6916-2_1.

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Collett, David. "Parametric regression models." In Modelling Survival Data in Medical Research, 147–216. 4th ed. Boca Raton: Chapman and Hall/CRC, 2023. http://dx.doi.org/10.1201/9781003282525-5.

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Collett, David. "Flexible parametric models." In Modelling Survival Data in Medical Research, 217–34. 4th ed. Boca Raton: Chapman and Hall/CRC, 2023. http://dx.doi.org/10.1201/9781003282525-6.

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Degen, W. L. F. "Best Approximations of Parametric Curves by Splines." In Geometric Modelling, 59–73. Vienna: Springer Vienna, 1993. http://dx.doi.org/10.1007/978-3-7091-6916-2_4.

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Albrecht, Gudrun. "An Algorithm for Parametric Quadric Patch Construction." In Geometric Modelling, 1–12. Vienna: Springer Vienna, 2004. http://dx.doi.org/10.1007/978-3-7091-0587-0_1.

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Cominetti, Roberto, Francisco Facchinei, and Jean B. Lasserre. "Chapter 5 Parametric Polynomial Optimization." In Modern Optimization Modelling Techniques, 93–120. Basel: Springer Basel, 2012. http://dx.doi.org/10.1007/978-3-0348-0291-8_5.

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Ghionea, Ionuţ Gabriel, Cristian Ioan Tarbă, and Saša Ćuković. "Parametric Modelling and Sheetmetal Design." In CATIA v5, 361–434. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003281153-4.

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Collett, D. "Some non-parametric procedures." In Modelling Survival Data in Medical Research, 15–51. Boston, MA: Springer US, 1994. http://dx.doi.org/10.1007/978-1-4899-3115-3_2.

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Conference papers on the topic "Parametric modelling"

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Matcha, Heike. "Parametric Possibilities: Designing with Parametric Modelling." In eCAADe 2007: Predicting the Future. eCAADe, 2007. http://dx.doi.org/10.52842/conf.ecaade.2007.849.

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Janssen, Patrick, Rudi Stouffs, Akshata Mohanty, Elvira Tan, and Ruize Li. "Parametric Modelling with GIS." In eCAADe 2016: Complexity & Simplicity. eCAADe, 2016. http://dx.doi.org/10.52842/conf.ecaade.2016.2.059.

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Janssen, Patrick, and Rudi Stouffs. "Types of Parametric Modelling." In CAADRIA 2015: Emerging Experience in Past, Present and Future of Digital Architecture. CAADRIA, 2015. http://dx.doi.org/10.52842/conf.caadria.2015.157.

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Janssen, Patrick, and Rudi Stouffs. "Types of Parametric Modelling." In CAADRIA 2015: Emerging Experience in Past, Present and Future of Digital Architecture. CAADRIA, 2015. http://dx.doi.org/10.52842/conf.caadria.2015.157.

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Uremović, Boris, and Ivica Završki. "Parametric modelling using mathematical functions." In 8th Symposium on Doctoral Studies in Civil Engineering. University of Zagreb Faculty of Civil Engineering, 2022. http://dx.doi.org/10.5592/co/phdsym.2022.22.

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This paper has a goal to show basic terms regarding parametric modelling, regarding the fact that it has become an unavoidable tool for designers in architecture and civil engineering as well as in other fields of engineering. Basic tools from one of the most widespread modelling application Rhinoceros 3D and its parametric modelling addon Grasshopper will be shown, and also will be shown a development of a conceptual model and the making of variant solutions based on parameter change. References and guidelines for future research of parametric modelling will also be given.
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Pfisterer, Richard. "Parametric modelling of illumination systems." In Frontiers in Optics. Washington, D.C.: OSA, 2003. http://dx.doi.org/10.1364/fio.2003.tul3.

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Pitts, Greg, and Sambit Data. "Parametric Modelling of Architectural Surfaces." In CAADRIA 2009: Between Man and Machine? Integration, Intuition, Intelligence. CAADRIA, 2009. http://dx.doi.org/10.52842/conf.caadria.2009.635.

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de Boissieu, Aurélie, Caroline Lecourtois, and Francois Guéna. "“Operation of parametric modelling” and/or “operation of architectural conception”?: Expressing relationships in parametric modelling." In eCAADe 2011 : Respecting Fragile Places. eCAADe, 2011. http://dx.doi.org/10.52842/conf.ecaade.2011.530.

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Jacquemyn, C., Y. Melnikova, M. D. Jackson, G. J. Hampson, and C. M. John. "Geologic Modelling Using Parametric NURBS Surfaces." In ECMOR XV - 15th European Conference on the Mathematics of Oil Recovery. Netherlands: EAGE Publications BV, 2016. http://dx.doi.org/10.3997/2214-4609.201601884.

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Hogben, N., and F. C. Cobb. "Parametric Modelling Of Directional Wave Spectra." In Offshore Technology Conference. Offshore Technology Conference, 1986. http://dx.doi.org/10.4043/5212-ms.

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Reports on the topic "Parametric modelling"

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Toutin, Th. Error Tracking in IKONOS Geometric Processing Using a 3D Parametric Modelling. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2003. http://dx.doi.org/10.4095/219801.

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Bijlsma, Maarten J., and Ben Wilson. Modelling the socio-economic determinants of fertility: a mediation analysis using the parametric g-formula. Rostock: Max Planck Institute for Demographic Research, May 2017. http://dx.doi.org/10.4054/mpidr-wp-2017-013.

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Sayyar-Rodsari, Bijan, Carl Schweiger, and Eric Hartman. Development of PUNDA (Parametric Universal Nonlinear Dynamics Approximator) Models for Self-Validating Knowledge-Guided Modelling of Nonlinear Processes in Particle Accelerators \& Industry. Office of Scientific and Technical Information (OSTI), October 2007. http://dx.doi.org/10.2172/917186.

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Dasberg, Shmuel, Jan W. Hopmans, Larry J. Schwankl, and Dani Or. Drip Irrigation Management by TDR Monitoring of Soil Water and Solute Distribution. United States Department of Agriculture, August 1993. http://dx.doi.org/10.32747/1993.7568095.bard.

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Drip irrigation has the potential of high water use efficiency, but actual water measurement is difficult because of the limited wetted volume. Two long-term experiments in orchards in Israel and in California and several field crop studies supported by this project have demonstrated the feasibility of precise monitoring of soil water distribution for drip irrigation in spite of the limited soil wetting. Time Domain Reflectometry (TDR) enables in situ measurement of soil water content of well defined small volumes. Several approaches were tried in monitoring the soil water balance in the field during drip irrigation. These also facilitated the estimation of water uptake: 1. The use of multilevel moisture probe TDR system. This approach proved to be of limited value because of the extremely small diameter of measurement. 2. The placement of 20 cm long TDR probes at predetermined distances from the drippers in citrus orchards. 3. Heavy instrumentation with neutron scattering access tubes and tensiometers of a single drip irrigated almond tree. 4. High resolution spatial and temporal measurements (0.1m x 0.1m grid) of water content by TDR in corn irrigated by surface and subsurface drip. The latter approach was accompanied by parametric modelling of water uptake intensity patterns by corn roots and superimposed with analytical solutions for water flow from point and line sources. All this lead to general and physically based suggestions for the placement of soil water sensors for scheduling drip irrigation.
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Malmquist, Louise, and Jennie Barron. Högfrekvent vattenföringsmätning i Braån, Loftaån, Örsundaån och Ösan år 2022 till 2023. Department of Soil and Environment, Swedish University of Agricultural Sciences, 2024. http://dx.doi.org/10.54612/a.103r5g5o99.

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Flertalet extrema väderhändelser de senaste åren har blottlagt sårbarheter inom svenskt lantbruk gällande vattenretention, dränering och avrinning i odlingslandskapen. För utvärdering och långsiktig sammanhängande planering av klimatanpassningsåtgärder finns emellertid luckor mellan analysverktyg som modeller och satellitdata med tillhörande bearbetningsprodukter, och in situ observationer med god spatial och temporal upplösning för verifiering av storskalig data. Som ett led i att utvärdera vattenbalansen och retentionskapacitet under inverkan av extremväder inom fyra svenska jordbruksdominerade avrinningsområden (Ösan, Loftaån, Örsundaån och Braån) utfördes vattenföringsmätningar i huvudvattendragen i respektive avrinningsområde. Syftet var att erhålla kalibrerings- och valideringsdata över vattenföring inkluderande extrema hög och lågflöden med tätare tidsintervall för att komplettera avrinningsdata som finns tillgängligt lokalt och från SMHI för avrinningsområdena idag. Vattennivå mättes under våren 2022 till våren 2023 med 10-minutersintervall i Loftaån, Örsundaån och Braån med TD-Diver® modell 11.11.04.02. Lokala avbördningskurvor beräknades från manuella mätningar vid 5 tillfällen fördelade efter säsong och flödesregim. Mätningarna i Örsundaån kompletterades med flödesmätning genom Large-Scale Particle Image Velocimetry (LSPIV teknik) och bearbetning till vattenföring i programvaran Fudaa-LSPIV version.1.9.2. Mätningarna i Ösan utfördes var 15e minut automatiskt med akustisk mätare (SonTEK IQ +). Avbördningskurvorna för Loftaån (R2 = 0.96) och Braån (R2 = 0.95)visar relativt bra samband trots fåtal manuella mätningar.- Örsundaån gav ett gott samband (R2 = 0.86). Men med största sannolikhet underskattade lågflöden. Tillförlitligheten hos de manuellt uppmätta flödesresultaten visade på störst relativ standardavvikelse för Örsundaån (4.3 till 15.1 %). Mätningarna i Loftaån och Braån resulterade i lägst relativ standardavvikelse (2.9 till 3.7 % för Loftaån respektive 3.6 till 6.2 % för Braån). I jämförelse med SMHI modellerade data visar observerade data för Loftaån och Ösan lägre högflöden och högre lågflöden. För Örsundaån var lågflöden högre för SMHIs modellerade värden jämfört med observerade. För Braån å andra sidan var observerade data genomgående högre jämfört med modellerad vattenföring. medianavvikelsen mellan SMHI modellerad data och observerad data varierade mellan -0.39 m3 s-1 (Ösan, Stdev 4.19 m3 s-1) och +0.5 m3 s-1 (Örsundaån Stdev 0.69 m3 s-1). Vattenföring är vidare en signifikant indikator av kväve- och fosforladdning i svenska avrinningsområden och avvikelser mellan modellerad- och observerad vattenföring har visat sig påverka utslaget vid beräkning av näringsbelastning i svenska vattendrag. Nationellt finns emellertid en större databas av vattenkvalitetsmätningar än vattenkvantitet varav osäkerheten i manuell beräkning och vid modellering av vattenkvalitet kan minskas, men med risk för överkompensation av parametrar kopplade till vattenkvantitet. Sammanfattningsvis är osäkerheten i extrapolering av avbördningskurvorna till låg- och högflöden en begränsning av observerad data för användning för kalibrering/validering av extrema väderförhållanden. För en nationell överblick finns ett behov av ökad insamling av högupplöst data på både spatial och temporal data som fångar både hög- och lågflöden för att korrekt motivera och dimensionera åtgärder mot både översvämningsrisk och torka/vattenbrist i odlingslandskapet.
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FINITE ELEMENT SIMULATION FOR ULTRA-HIGH-PERFORMANCE CONCRETE-FILLED DOUBLE-SKIN TUBES EXPOSED TO FIRE. The Hong Kong Institute of Steel Construction, August 2022. http://dx.doi.org/10.18057/icass2020.p.263.

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Ultra-high-performance concrete (UHPC) or ultra-high-strength concrete (UHSC) are alternatively used to reduce construction materials, thereby achieving more sustainable constructions. Moreover, engaging the advantages of concrete cores and outer steel tubes in concrete-filled steel tubes (CFST) or ductile concrete-filled double-skin tubes (CFDST) is of great interest for the better performance of such members under fire. Nevertheless, current design provisions do not provide design models for UHPC-filled double-skin tubes under fire, and existing finite-element (FE) methodologies available in the literature may not accurately simulate the behaviour of CFDST exposed to fire. Therefore, this paper develops a comprehensive FE protocol implementing the scripting technique to model CFDST members for heat transfer and coupled (simultaneously or sequentially) thermal-stress analyses. Various modelling parameters incorporated in the proposed FE routine include the cross-sectional geometry (circular, elliptical, hexagonal, octagonal, and rectangular), the size (width, diameter, and wall thickness), interactions, meshing, thermal- and mechanical-material properties, and boundary conditions. The detailed algorithm for heat transfer analysis is presented and elaborated via a flow chart. Validations, verifications, and robustness of the developed FE models are established based on extensive comparison studies with existing fire tests available in the literature. As a result, and to recognize the value of the current FE methodology, an extensive parametric study is conducted for different affecting parameters (e.g., nominal steel ratio, hollowness ratio, concrete cylindrical strength, yield strength of metal tubes, and width-to-thickness ratio). Extensive FE results are used for optimizing the fire design of such members. Consequently, a simplified and accurate analytical model that can provide the axial load capacity of CFDST columns under different fire ratings is presented
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