Academic literature on the topic 'Visualisation compacte'
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Journal articles on the topic "Visualisation compacte":
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Khan, Mohammad, and Lian Loke. "LOCATIVE MEDIA INTERVENTIONISM – A CONCEPTUAL FRAMEWORK FOR CRITICAL REVIEW OF AUGMENTED REALITY APPLICATIONS IN THE PARTICIPATORY SPATIAL DESIGN CONTEXT." International Journal of Architectural Research: ArchNet-IJAR 11, no. 1 (March 30, 2017): 181. http://dx.doi.org/10.26687/archnet-ijar.v11i1.1140.
Abstract:
This paper offers an analytical framework for a critical review of augmented reality visualisations in the domain of participatory spatial design in general and Participatory Architecture in particular. By offering this framework the paper aims to respond to the concern in published discourse that augmented reality visualisations are insufficient on their own to accomplish participation’s ultimate objective of social inclusion. To derive this framework the paper turns to augmented reality itself, that is, the realm of locative media practice as a whole. Illustrative examples have been reviewed to identify an overarching commonality of purpose, namely proactive spatial intervention for social inclusion. This common underpinning concept has been labelled as Locative Media Interventionism, or LMI. Finally, this compact framework has been used to evaluate augmented reality applications in participatory spatial design. A cursory evaluation of micro as well as macro scale examples indicates that the usage of this visualisation technology has yet to undergo the process of maturation that locative media in general has undergone. It has yet to evolve out from being a mere novelty to becoming a politically charged platform for delivering social inclusion
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Van Baelen, Joël, Jean-Pierre Aubagnac, Lutz Hirsch, and Claire Prada. "Ein Werkzeug zur Visualisierung der Unterschiede verschiedener Multiple-Empfänger-Techniken bei Windprofilern." Meteorologische Zeitschrift 7, no. 6 (December 15, 1998): 303–8. http://dx.doi.org/10.1127/metz/7/1998/303.
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O'BRIEN, F. J., D. TAYLOR, G. R. DICKSON, and T. C. LEE. "Visualisation of three-dimensional microcracks in compact bone." Journal of Anatomy 197, no. 3 (October 2000): 413–20. http://dx.doi.org/10.1046/j.1469-7580.2000.19730413.x.
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Semeraro, Alfonso, Salvatore Vilella, and Giancarlo Ruffo. "PyPlutchik: Visualising and comparing emotion-annotated corpora." PLOS ONE 16, no. 9 (September 1, 2021): e0256503. http://dx.doi.org/10.1371/journal.pone.0256503.
Abstract:
The increasing availability of textual corpora and data fetched from social networks is fuelling a huge production of works based on the model proposed by psychologist Robert Plutchik, often referred simply as the “Plutchik Wheel”. Related researches range from annotation tasks description to emotions detection tools. Visualisation of such emotions is traditionally carried out using the most popular layouts, as bar plots or tables, which are however sub-optimal. The classic representation of the Plutchik’s wheel follows the principles of proximity and opposition between pairs of emotions: spatial proximity in this model is also a semantic proximity, as adjacent emotions elicit a complex emotion (a primary dyad) when triggered together; spatial opposition is a semantic opposition as well, as positive emotions are opposite to negative emotions. The most common layouts fail to preserve both features, not to mention the need of visually allowing comparisons between different corpora in a blink of an eye, that is hard with basic design solutions. We introduce PyPlutchik the Pyplutchik package is available as a Github repository (http://github.com/alfonsosemeraro/pyplutchik) or through the installation commands pip or conda. For any enquiry about usage or installation feel free to contact the corresponding author, a Python module specifically designed for the visualisation of Plutchik’s emotions in texts or in corpora. PyPlutchik draws the Plutchik’s flower with each emotion petal sized after how much that emotion is detected or annotated in the corpus, also representing three degrees of intensity for each of them. Notably, PyPlutchik allows users to display also primary, secondary, tertiary and opposite dyads in a compact, intuitive way. We substantiate our claim that PyPlutchik outperforms other classic visualisations when displaying Plutchik emotions and we showcase a few examples that display our module’s most compelling features.
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Bohdal, Tadeusz, Małgorzata Sikora, and Karolina Formela. "Thermal and Visualisation Study of the HFE7100 Refrigerant Condensation Process." Acta Mechanica et Automatica 18, no. 1 (January 5, 2024): 60–67. http://dx.doi.org/10.2478/ama-2024-0008.
Abstract:
Abstract Technological advances are contributing to the search for highly efficient energy designs, and increasing interest in compact heat exchangers. Indeed, small channel diameters determine large heat transfer coefficients and condition a significant heat transfer area about the overall volume of the heat exchanger, as well as a smaller amount of refrigerant flowing in the system. Nevertheless, the operating stability and energy efficiency of compact heat exchangers are influenced by two-phase flow structures, which depend on thermal flow parameters. Knowledge of the structures formed during the condensation process is therefore essential for optimising the operation of refrigeration and air-conditioning equipment. This article presents the results from experimental studies of the HFE7100 refrigerant, from the hydrofluorocarbon group, condensation process in mini-channels with hydraulic diameters dh = 2.0 mm, 1.2 mm, 0.8 mm and 0.5 mm. Thermal flow characteristics were determined, and the forming structures of two-phase flow were recorded. The results of visualisation were subjected to morphological image analysis, based on a special algorithm written in MATLAB software. The algorithm makes it possible to determine the void fraction, which is necessary for calculating the vapour quality, as well as the area of vapour bubbles and their number, directionality and length along the x- and y-axes.
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Dagens, Béatrice, Gil Cardoso, Marius Crouzier, Vy Yam, Frédéric Hamouda, Giovanni Magno, Aloyse Degiron, and Thomas Lopez. "La nanophotonique : des solutions pour des systèmes de visualisation améliorés et compactés." Photoniques, no. 115 (August 8, 2022): 34–40. http://dx.doi.org/10.1051/photon/202211534.
Abstract:
La nanophotonique a un rôle à jouer pour compacter, alléger et améliorer les systèmes optiques pour les applications de mobilité. Elle offre des solutions non accessibles à l’optique réfractive du fait de son caractère modulaire et de sa compatibilité avec les technologies planaires. En retour, de nouvelles problématiques scientifiques et technologiques lui sont posées, dont nous présentons ici quelques exemples : fonctionnalisation plasmonique d’écrans transparents, émetteur cohérent planaire vectorisé par des plasmons, adressage matriciel de pixels submicroniques.
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Rajesh Patil, Somnath Thigale, Swagat Karve, Vaishnaw Kale. "Classification of Defective and Non-Defective Products Using Convolutional Neural Networks in Quality Control." Proceeding International Conference on Science and Engineering 11, no. 1 (February 18, 2023): 213–22. http://dx.doi.org/10.52783/cienceng.v11i1.115.
Abstract:
The arrival of convolutional neural networks (CNNs) has enhanced the progress of computer visualisation from many fields. However, most of the CNNs are rely on GPUs (graphics processing units) that could needthe large computations and it requires more cost to develop the setup. Therefore, most of the manufacturers haven’t used the CNNs to inspect the defective items in theirfield. The researcher has developed a compact CNN-based model that not only achieves high performance on tiny defect inspection but can be run on low- frequency CPUs (central processing units) in this paper. This experiments indicate CNNs can be compact and hardware-friendly for future applications in the automated surface inspect (ASI)in the selected manufacturing field.
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Agius, Tyler, Soheil Sabri, and Mohsen Kalantari. "Three-Dimensional Rule-Based City Modelling to Support Urban Redevelopment Process." ISPRS International Journal of Geo-Information 7, no. 10 (October 18, 2018): 413. http://dx.doi.org/10.3390/ijgi7100413.
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Multi-dimensional representation of urban settings has received a great deal of attention among urban planners, policy makers, and urban scholars. This is due to the fact that cities grow vertically and new urbanism strategies encourage higher density and compact city development. Advancements in computer technology and multi-dimensional geospatial data integration, analysis and visualisation play a pivotal role in supporting urban planning and design. However, due to the complexity of the models and technical requirements of the multi-dimensional city models, planners are yet to fully exploit such technologies in their activities. This paper proposes a workflow to support non-experts in using three-dimensional city modelling tools to carry out planning control amendments and assess their implications. The paper focuses on using a parametric three-dimensional (3D) city model to enable planners to measure the physical (e.g., building height, shadow, setback) and functional (e.g., mix of land uses) impacts of new planning controls. The workflow is then implemented in an inner suburb of Metropolitan Melbourne, where urban intensification strategies require the planners to carry out radical changes in regulations. This study demonstrates the power of the proposed 3D visualisation tool for urban planners at taking two-dimensional (2D) Geographic Information System (GIS) procedural modelling to construct a 3D model.
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Pham, T. L., J. Balcaen, J. Y. Charmeau, and Yves Bereaux. "In-Line Visualisation of Polymer Plastication in an Injection Moulding Screw." Key Engineering Materials 554-557 (June 2013): 1683–91. http://dx.doi.org/10.4028/www.scientific.net/kem.554-557.1683.
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In injection moulding or in extrusion, plastication is the step during which polymer pellets are melted by the means of mechanical dissipation provided by a rotating screw and by thermal conduction coming from a heated metallic barrel. This step is crucial for melt thermal homogeneity, charge dispersion and fibre length preservation. Although there have been a large number of theoretical and experimental studies of plastication during the past decades, mostly on extrusion and mostly using the screw extraction technique, extremely few of them have dealt with trying to visualise plastication, let alone measuring the plastication profile in real-time. As a matter of fact, designing such an equipment is an arduous task. We designed an industry-sized metallic barrel, featuring 3 optical glass windows, each window possessing 3 plane faces itself to allow for visualisation and record by synchronised cameras and lightening by lasers. The laser can be used in a laser induced fluorescence or in a particle imaging velocity measurement framework. The images recorded can be further analysed by digital image processing. Preliminary results confirm the plastication theory and show a compacted solid bed and a melt pool side by side. The total plastication length is a direct function of screw rotation frequency as it is obvious from results on the melt pool width, which increases when the screw rotation frequency decreases. However, some evidence of solid bed breakage has been recorded, whereby the solid bed does not diminish continuously along the screw but is fractured in the compression zone These experimental findings are compared to predictions by a one-dimensional model of plastication
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Stanula, A., and W. Pilarczyk. "Combined carbon content assessment method for powder metallurgy." Journal of Achievements in Materials and Manufacturing Engineering 114, no. 1 (September 1, 2022): 15–21. http://dx.doi.org/10.5604/01.3001.0016.1479.
Abstract:
Powder metallurgy (PM) lacks a clear method to analyse the combined carbon content based on metallography visualisation, and this article describes the creation of such a method for powder materials. Different methods are used to analyse combined carbon within metallurgical samples, and the hardness of components within the automotive industry is related to this question. The main aim of this paper is to determine if optical microscopy provides a reliable means to assess the combined carbon content. For checking these items, the Optical Microscope will be used, density, hardness of sinter material, and particle size laser analysis of powder for creating the observed compact, and SEM microscope. This investigation provides standardised rules that can be implemented within any material laboratory. The analysis of powder particle size, hardness test, density check, and the investigation of the structure of powder element are presented.
Dissertations / Theses on the topic "Visualisation compacte":
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Halnaut, Adrien. "Méthodes et outils d’analyse visuelle pour la compréhension, l’optimisation et l’élaboration de modèles de réseaux de neurones profonds." Electronic Thesis or Diss., Bordeaux, 2024. http://www.theses.fr/2024BORD0042.
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Les méthodes d’apprentissage profond sont grandement utilisées dans une multitude de domaines de recherche et industriels, notamment pour résoudre des tâches de classification de données. Cependant, cette technologie est souvent associée à un modèle considéré comme une «boîte noire». L’utilisateur peut comprendre les données en entrée et en sortie du réseau entraîné, mais ne connait pratiquement rien du fonctionnement interne du réseau. Cet aspect rend difficile la justification des prédictions des modèles. L’explicabilité et l’interprétabilité des réseaux de neurones est un domaine de recherche qui regroupe différentes communautés scientifiques. Il a pour objectif de faciliter la compréhension du fonctionnement des réseaux de neurones aux yeux des utilisateurs et experts. La visualisation d’information est l’une des techniques employées pour répondre à ce besoin. Elle concerne l’élaboration d’outils facilitant la compréhension et l’analyse de jeux de données, habituellement à plus de deux dimensions, au moyen de représentations visuelles et d’interactions. Dans cette thèse, nous exploitons les informations extraites en sortie de chaque couche des réseaux pour interpréter leurs décisions via des méthodes de visualisation. Dans un premier temps, nous montrons qu’il est possible de représenter des groupes d’instances traitées similairement par un réseau au moyen d’un diagramme de Sankey. Ce processus demande le traitement de données en quantité importante, que nous avons conduit en exploitant des infrastructures de calculs à large échelle issues du domaine du BigData. Pour étudier des scénarios plus complexes, qui impliquent des jeux de données plus grands et des architectures de réseaux plus lourdes, nous développons des méthodes de visualisation compacte. Nous utilisons deux approches : l’une concerne la représentation de la proximité des éléments en les projetant dans l’espace ℕ, l’autre en appliquant un post‐traitement sur des projections ℝ�� → ℝ2 pour en former des grilles compactes de données. Pour évaluer l’efficacité de ces méthodes de projections, nous avons mis en place un protocole d’évaluation utilisateur. Celui‐ci permet de mesurer la pertinence des méthodes de visualisations pour résoudre des tâches liées à la compréhension de jeux de données dans ℝ��. Nous avons finalement conduit une évaluation suivant notre protocole pour comparer l’efficacité de la visualisation compacte avec celle de la visualisation par nuages de points. Cette évaluation est menée en utilisant deux méthodes de projection de l’état de l’art, t‐SNE et Self‐Sorting MapsDeep‐learning methods are widely used in a variety of research and industrial domains, especially in the data classification task. However, this technology is often notoriously compared to a “black box”. The user can understand input and output data of the network, but has little to no knowledge about its internal processing. This aspect of neural networks makes difficult to justify their predictions. Explainability and Interpretability of deep neural networks is a research domain merging with a variety of scientific communities. Its goal is to make easier the understanding of neural networks for both users and experts. Information visualization is one of the techniques used to answer this need. It consists in building tools which make easier the understanding and the analysis of usually high dimensional datasets, using visual abstractions and interactions. In this thesis, we make use of data extracted from the output of each layer of the neural network to interpret the model decisions using visualization methods. First, we show it is possible to visualize groups of samples processed similarly by the network using a Sankey diagram. This method asks for large data processing, which we enable by using machine clusters infrastructures used in BigData operations. In order to study more complex scenarios, involving larger datasets and heavier network architectures, we develop compact data visualization methods. We propose two approaches: the first one implies representation of data proximities using data reduction to the ℕ space, the other one implies post‐processing to ℝ�� → ℝ2 data projections to build compact grids of data. In order to evaluate the performances of these projection methods, we propose a user study protocol. Its goal is to measure the suitability of visualization methods in tasks related to the understanding of high‐dimensional data. Finally, we carry out an evaluation following this protocol to compare the efficiency between compact data visualization and scatter plot visualization. This evaluation is conducted using state of the art methods t‐SNE and Self‐Sorting Maps
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Jamin, Clément. "Algorithmes et structures de données compactes pour la visualisation interactive d’objets 3D volumineux." Thesis, Lyon 1, 2009. http://www.theses.fr/2009LYO10133.
Abstract:
Les méthodes de compression progressives sont désormais arrivées à maturité (les taux de compression sont proches des taux théoriques) et la visualisation interactive de maillages volumineux est devenue une réalité depuis quelques années. Cependant, même si l’association de la compression et de la visualisation est souvent mentionnée comme perspective, très peu d’articles traitent réellement ce problème, et les fichiers créés par les algorithmes de visualisation sont souvent beaucoup plus volumineux que les originaux. En réalité, la compression favorise une taille réduite de fichier au détriment de l’accès rapide aux données, alors que les méthodes de visualisation se concentrent sur la rapidité de rendu : les deux objectifs s’opposent et se font concurrence. A partir d’une méthode de compression progressive existante incompatible avec le raffinement sélectif et interactif, et uniquement utilisable sur des maillages de taille modeste, cette thèse tente de réconcilier compression sans perte et visualisation en proposant de nouveaux algorithmes et structures de données qui réduisent la taille des objets tout en proposant une visualisation rapide et interactive. En plus de cette double capacité, la méthode proposée est out-of-core et peut traiter des maillages de plusieurs centaines de millions de points. Par ailleurs, elle présente l’avantage de traiter tout complexe simplicial de dimension n, des soupes de triangles aux maillages volumiquesProgressive compression methods are now mature (obtained rates are close to theoretical bounds) and interactive visualization of huge meshes has been a reality for a few years. However, even if the combination of compression and visualization is often mentioned as a perspective, very few papers deal with this problem, and the files created by visualization algorithms are often much larger than the original ones. In fact, compression favors a low file size to the detriment of a fast data access, whereas visualization methods focus on rendering speed : both goals are opposing and competing. Starting from an existing progressive compression method incompatible with selective and interactive refinements and usable on small-sized meshes only, this thesis tries to reconcile lossless compression and visualization by proposing new algorithms and data structures which radically reduce the size of the objects while supporting a fast interactive navigation. In addition to this double capability, our method works out-of-core and can handle meshes containing several hundreds of millions vertices. Furthermore, it presents the advantage of dealing with any n-dimensional simplicial complex, which includes triangle soups or volumetric meshes
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Hernando, Louis. "Sédimentation de suspensions non-colloïdales poly-dispersés et concentrées." Thesis, Bordeaux 1, 2012. http://www.theses.fr/2012BOR14490/document.
Abstract:
De la pâte à dentifrice au moût de fermentation en passant par la peinture, le lit d’une rivière, le propergol d’un réacteur de fusée et le sang, les suspensions sont présentes dans de nombreux usages de notre vie courante. La maîtrise de leur mise en œuvre notamment nécessite la compréhension de leur comportement et constitue un des challenges de la recherche. Dans le présent travail de thèse, nous nous sommes intéressés au processus de sédimentation de suspensions concentrées de particules non-colloïdales et inertes dont la distribution de taille est mono, bi ou tri-disperse. Deux types de sédimentation ont été étudiés : la décantation et l’alimentation continue. L’objectif est de mener une étude expérimentale et dans une moindre mesure numérique pour caractériser de la façon la plus complète possible la sédimentation avec une attention particulière à la structure de l’écoulement et du dépôt, aux profils de concentration et à la détermination des modes de sédimentation. Les moyens expérimentaux utilisés sont les techniques usuelles de mesure bidimensionnelle (vélocimétrie laser et visualisation directe) qui autorisent l’acquisition de données d’intérêt pour des configurations où les particules évoluent dans le plan. Ces techniques laser ont été améliorées pour permettre le suivi simultané de populations de différentes particules et l’accès à des grandeurs diverses telles que le champ de vitesse de l’écoulement, la fraction volumique locale, et les vitesses des divers fronts de sédimentation. En parallèle, un outil numérique simple a été construit, utilisant la Dynamique Stokesienne et saisissant l’essentiel des phénomènes physiques mis en jeu menant à la modélisation des interactions hydrodynamiquesFrom toothpaste to must of fermentation passing by painting, bed of a river, propellant of an rocket engine and blood, suspensions are present in many uses of our everyday life. The control of their implementation requires comprehension of their behavior and constitutes one of the challenges of nowadays research. In this work of thesis, we were interested in the sedimentation process of concentrated suspensions of non-colloidal and inert particles whose size distribution is mono, bi or tri-disperse. Two types of sedimentation were studied: decantation and thickening. The objective is to do an experimental and in a lesser way numerical study to characterize sedimentation the most completly possible with a detailed attention to flow and deposit structure, concentration profiles and determination of sedimentation modes. Used experimental means are the usual techniques of two-dimensional measurement (laser velocimetry and direct visualization) which authorize the data acquisition for configurations where particles evolve in the plan. These laser techniques were improved to simultaneously follow various particles populations and access to various outpouts such as velocities field, local volumic fraction, and velocities of various sedimentation fronts. A simple numerical tool was also built using Stokesian Dynamics and seizing the main part of the physical phenomena driving sedimentation leading to the modeling of the hydrodynamic interactions
Books on the topic "Visualisation compacte":
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Müller, Brigitte. Reiki Chakra- Selbstbehandlung. Heile Dich selbst. Compact- Cassette. Geführte Visualisation und Affirmation. Erd, 1991.
Book chapters on the topic "Visualisation compacte":
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van Schooten, Boris W., Betsy van Dijk, Avan Suinesiaputra, Anton Nijholt, and Johan H. C. Reiber. "Evaluating Visualisations and Automatic Warning Cues for Visual Search in Vascular Images." In Cognitively Informed Intelligent Interfaces, 68–83. IGI Global, 2012. http://dx.doi.org/10.4018/978-1-4666-1628-8.ch005.
Abstract:
Visual search is a task that is performed in various application domains. The authors examine it in the domain of radiological analysis of 3D vascular images. They compare several major visualisations used in this domain, and study the possible benefits of automatic warning systems that highlight the sections that may contain visual targets and hence require the user’s attention. With help of a literature study, the authors present some theory about what result can be expected given the accuracy of a particular visual cue. They present the results of two experiments, in which they find that the Curved Planar Reformation visualisation, which presents a cross-section based on knowledge about the position of the blood vessel, is significantly more efficient than regular 3D visualisations, and that automatic warning systems that produce false alarms could work if they do not miss targets.
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"The Product Operator Formalism." In Essential Mathematics for NMR and MRI Spectroscopists, 561–97. The Royal Society of Chemistry, 2016. http://dx.doi.org/10.1039/bk9781782627975-00561.
Abstract:
Density matrix calculations are very powerful but also very time-consuming and error-prone when done by hand. The product operator formalism provides a compact way of doing “back-of-the-envelope” density matrix operations. In order to contrast the density operator method with the product operator method and to make clear the genesis of the product operator formalism a short discussion of a density matrix calculation is performed. The Cartesian product operator method is then presented and the rules for its use are developed. Multiple quantum coherence is defined and its genesis and evolution in time are explored. Helpful visualisations of product operator evolutions are presented as rotation diagrams. Several NMR pulse sequences are analysed and a visual operator-tree approach to analysis is presented. Single-transition product operators are discussed in preparation for the treatment of coherence transfer and relaxation.
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Abdel-Hafez, Ahmad, Don Baker, Michelle Winning, and Alan Scanlon. "The Clinical Nursing and Midwifery Dashboard (CNMD): A State-Wide Implementation." In Studies in Health Technology and Informatics. IOS Press, 2021. http://dx.doi.org/10.3233/shti210654.
Abstract:
The clinical nursing and midwifery dashboard (CNMD) was built to provide a near real-time information and data visualisations for nurse unit managers (NUMs) and maternity unit managers (MUMs) within only a 5-15 minutes delay from when they enter data to the integrated electronic medical records (ieMR) system. The dashboard displays metrics and information about current adult inpatients in overnight wards. The aim is to support NUMs and MUMs to manage their daily workload and have continuous visibility of patients nursing risk and safety assessment documentation. A quantitative evaluation approach was conducted to measure the impact of the dashboard on key performance indicators. Statistical analysis was completed to compare risk assessment average completion times prior to and post CNMD implementation. The results of the evaluation were positive, and the statistical analysis shows significant reduction in the average time to complete different risk assessments with p-value<0.01.
Conference papers on the topic "Visualisation compacte":
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Baudel, Thomas. "Visualisations compactes." In the 14th French-speaking conference. New York, New York, USA: ACM Press, 2002. http://dx.doi.org/10.1145/777005.777027.
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Alguine, Vladimir, and Mir-Akbar Hessami. "Heat Transfer Investigation of Compact Plate Heat Exchangers Using Flow Visualisation." In Heat and Mass Transfer Australasia. Connecticut: Begellhouse, 2023. http://dx.doi.org/10.1615/978-1-56700-099-3.540.
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Seifert, Christin, Jorg Schlotterer, and Michael Granitzer. "QueryCrumbs: A Compact Visualization for Navigating the Search Query History." In 2017 21st International Conference on Information Visualisation (IV). IEEE, 2017. http://dx.doi.org/10.1109/iv.2017.23.
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Del Fatto, Vincenzo, Anton Dignoes, and Johann Gamper. "TIME°DIFF: A Visual Approach to Compare Period Data." In 2018 22nd International Conference Information Visualisation (IV). IEEE, 2018. http://dx.doi.org/10.1109/iv.2018.00017.
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Schlotterer, Jorg, Christin Seifert, and Michael Granitzer. "QueryCrumbs for Experts: A Compact Visual Query Support System to Facilitate Insights into Search Engine Internals." In 2018 22nd International Conference Information Visualisation (IV). IEEE, 2018. http://dx.doi.org/10.1109/iv.2018.00024.
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Tortech, L., A. Marcellan, H. van Melick, and A. Chateauminois. "Third Body Effects in the Wear of Polyamide Materials." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-63895.
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This study deals with the micro-wear mechanisms of polyamide materials under reciprocating sliding conditions. Using the resources of in situ contact visualisation through transparent sapphire counterfaces, third body formation and flow processes have been monitored as a function of the sliding amplitude. Under confined contact conditions, the stabilization of coherent third body compacts with distinct microstructural properties was found to have a profound effect on the displacement of wear debris from the contact and on the ultimate wear resistance of the polyamide materials.
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Sathiyanarayanan, Mithileysh, Cagatay Turkay, and Odunayo Fadahunsi. "Design and implementation of small multiples matrix-based visualisation to monitor and compare email socio-organisational relationships." In 2018 10th International Conference on Communication Systems & Networks (COMSNETS). IEEE, 2018. http://dx.doi.org/10.1109/comsnets.2018.8328288.
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Dally, B. B., and C. B. Allison. "Development of a Compact Heat Exchanger consisting of tubes and interconnecting struts forming parallel plate arrays: Part I Flow Visualisation." In 8th Australasian Heat and Mass Transfer Conference. Curtin University of Technology. Connecticut: Begellhouse, 2005. http://dx.doi.org/10.1615/ichmt.2005.austheatmasstransfconf.120.
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Ness, G., M. Langvik, and L. Strand Ree. "How to Develop a Comprehensive Scale Management Strategy and Use the Scale Risk Factor (SRF) for Chemical Optimisation." In SPE Oilfield Scale Symposium. SPE, 2024. http://dx.doi.org/10.2118/218711-ms.
Abstract:
Abstract The Valhall field is located in the southern part of the Norwegian sector in the North Sea and has been producing for over 40 years. In more recent years there has been a number of issues caused by the presence of solids in the system and although barite scale was always known to be the main source, a thorough assessment of the problem was required. A project task force was set up in early 2023 to collate and review years of water chemistry data, solids analysis, Environmental scanning electron microscopy (ESEM), Infrared Thermography reports and other measurements to clearly establish the source of solids in the system and develop a field wide scale prediction model which covers over 60 mixing points from wellhead to water overboard. Thanks to this process the areas at higher risk of scale formation were identified and this provided the basis for scale inhibitor optimisation throughout the system. In addition to this analysis, a large volume of data that had been stored in various databases was also transferred to Power BI to improve data visualisation and allow faster detection of solids precipitation, easier root cause analysis and ultimately more effective scale management. Finally, a new calculation was used to quantify the scale risk more holistically and to compare the scaling potential in different parts of the system. This is called Scale Risk Factor (SRF) and is calculated using both Saturation Ratio (SR) and mass of scale predicted. Additional lab work is currently ongoing to produce a trendline which shows how the minimum inhibitor concentration (MIC) for a specific product change with variable SRF. This case study shows how accurate conventional scale predictions can be used in conjunction with data visualisation and a new parameter, the scale risk factor (SRF) to successfully optimise scale inhibitor injection and potentially reduce operating costs.
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Ahmed, Shaher, Mohamed Shekha, Suhaila Skran, and Abdelrahman Bassyouny. "Investigation of Optimization Techniques on the Elevator Dispatching Problem." In 9th International Conference on Computer Networks & Communications (CCNET 2022). Academy and Industry Research Collaboration Center (AIRCC), 2022. http://dx.doi.org/10.5121/csit.2022.120305.
Abstract:
In the elevator industry, reducing passenger journey time in an elevator system is a major aim. The key obstacle to optimising elevator dispatching is the unpredictable traffic flow of passengers. To address this difficulty, two main features must be optimised: waiting time and journey time. To address the problem in real time, several strategies are employed, including Simulated Annealing (SA), Genetic Algorithm (GA), Particle Swarm Optimization Algorithm (PSO), and Whale Optimization Algorithm (WOA). This research article compares the algorithms discussed above. To investigate the functioning of the algorithms for visualisation and insight, a case study was created. In order to discover the optimum algorithm for the elevator dispatching problem, performance indices such as average and ideal fitness value are generated in 5 runs to compare the outcomes of the methods. The goal of this study is to compute a dispatching scheme, which is the result of the algorithms, in order to lower the average trip time for all passengers. This study builds on previous studies that recommended ways to reduce waiting time. The proposed technique reduces average wait time, improves lift efficiency, and improves customer experience.
Reports on the topic "Visualisation compacte":
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McCarthy, Noel, Eileen Taylor, Martin Maiden, Alison Cody, Melissa Jansen van Rensburg, Margaret Varga, Sophie Hedges, et al. Enhanced molecular-based (MLST/whole genome) surveillance and source attribution of Campylobacter infections in the UK. Food Standards Agency, July 2021. http://dx.doi.org/10.46756/sci.fsa.ksj135.
Abstract:
This human campylobacteriosis sentinel surveillance project was based at two sites in Oxfordshire and North East England chosen (i) to be representative of the English population on the Office for National Statistics urban-rural classification and (ii) to provide continuity with genetic surveillance started in Oxfordshire in October 2003. Between October 2015 and September 2018 epidemiological questionnaires and genome sequencing of isolates from human cases was accompanied by sampling and genome sequencing of isolates from possible food animal sources. The principal aim was to estimate the contributions of the main sources of human infection and to identify any changes over time. An extension to the project focussed on antimicrobial resistance in study isolates and older archived isolates. These older isolates were from earlier years at the Oxfordshire site and the earliest available coherent set of isolates from the national archive at Public Health England (1997/8). The aim of this additional work was to analyse the emergence of the antimicrobial resistance that is now present among human isolates and to describe and compare antimicrobial resistance in recent food animal isolates. Having identified the presence of bias in population genetic attribution, and that this was not addressed in the published literature, this study developed an approach to adjust for bias in population genetic attribution, and an alternative approach to attribution using sentinel types. Using these approaches the study estimated that approximately 70% of Campylobacter jejuni and just under 50% of C. coli infection in our sample was linked to the chicken source and that this was relatively stable over time. Ruminants were identified as the second most common source for C. jejuni and the most common for C. coli where there was also some evidence for pig as a source although less common than ruminant or chicken. These genomic attributions of themselves make no inference on routes of transmission. However, those infected with isolates genetically typical of chicken origin were substantially more likely to have eaten chicken than those infected with ruminant types. Consumption of lamb’s liver was very strongly associated with infection by a strain genetically typical of a ruminant source. These findings support consumption of these foods as being important in the transmission of these infections and highlight a potentially important role for lamb’s liver consumption as a source of Campylobacter infection. Antimicrobial resistance was predicted from genomic data using a pipeline validated by Public Health England and using BIGSdb software. In C. jejuni this showed a nine-fold increase in resistance to fluoroquinolones from 1997 to 2018. Tetracycline resistance was also common, with higher initial resistance (1997) and less substantial change over time. Resistance to aminoglycosides or macrolides remained low in human cases across all time periods. Among C. jejuni food animal isolates, fluoroquinolone resistance was common among isolates from chicken and substantially less common among ruminants, ducks or pigs. Tetracycline resistance was common across chicken, duck and pig but lower among ruminant origin isolates. In C. coli resistance to all four antimicrobial classes rose from low levels in 1997. The fluoroquinolone rise appears to have levelled off earlier and among animals, levels are high in duck as well as chicken isolates, although based on small sample sizes, macrolide and aminoglycoside resistance, was substantially higher than for C. jejuni among humans and highest among pig origin isolates. Tetracycline resistance is high in isolates from pigs and the very small sample from ducks. Antibiotic use following diagnosis was relatively high (43.4%) among respondents in the human surveillance study. Moreover, it varied substantially across sites and was highest among non-elderly adults compared to older adults or children suggesting opportunities for improved antimicrobial stewardship. The study also found evidence for stable lineages over time across human and source animal species as well as some tighter genomic clusters that may represent outbreaks. The genomic dataset will allow extensive further work beyond the specific goals of the study. This has been made accessible on the web, with access supported by data visualisation tools.