CumInCAD is a Cumulative Index about publications in Computer Aided Architectural Design
supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

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_id ddss2008-22
id ddss2008-22
authors Keim, Christian
year 2008
title Modelling urban dynamics through cellular automata: an empirical application
source H.J.P. Timmermans, B. de Vries (eds.) 2008, Design & Decision Support Systems in Architecture and Urban Planning, ISBN 978-90-6814-173-3, University of Technology Eindhoven, published on CD
summary Actual developments of digital maps and tools given by GIS-systems provide the possibility to develop new methodologies to handle land-cover data for modelling purposes. At any rate empirical applications are still rare within the Geosimulation studies and yet there is not an established methodology. The aim of the work has been to construct a cellular automata (CA) model of a sprawling city region within the German context, based on empirical data. The urban land-use classes (LUC) are considered as a higher organisation level of different building typologies and relative functions. These define the land-use patterns as self-organized from their complex spatial iterations, based on limited local information exchange. On the one hand the synthesis capacity of the CA models has been verified, even without socio-economical variables. On the other hand, it has been seen that the still early evolutional state of digital land-cover datasets are too premature to fully suite the modelling purposes.
keywords Complex Systems, Self-Organisation, Cellular automata, Geographical information systems, Land-use change
series DDSS
last changed 2008/09/01 17:06

_id ecaade2023_188
id ecaade2023_188
authors Keles, Ahmet and Yazici, Sevil
year 2023
title Design of Lightweight Fibrous Shells by the Use of Knitting Patterns
doi https://doi.org/10.52842/conf.ecaade.2023.2.317
source Dokonal, W, Hirschberg, U and Wurzer, G (eds.), Digital Design Reconsidered - Proceedings of the 41st Conference on Education and Research in Computer Aided Architectural Design in Europe (eCAADe 2023) - Volume 2, Graz, 20-22 September 2023, pp. 317–326
summary The increasing environmental concerns have brought attention to the circularity of materials used in the construction sector. Fibre-reinforced lightweight structures have emerged as a potential solution to this issue, offering opportunities for bio-degradable materials, sustainable production techniques, and cost-effective alternatives to traditional building materials. This research aims to explore possibilities of fibre-reinforced lightweight structures and propose a design process by the use of traditional bobbin lace production methods for orienting fibres. The research workflow consists of four steps. In the first step, the most frequently used knitting methods such as torchon, tulle, and knitting ground patterns, including engelche, rose, square, diamond, triangular, and hexagonal ones are determined. Second step is based on a form-finding process for the shell performed in an algorithmic modelling environment. In the third step, structural performance simulations are undertaken for the shell structures that are specified for the boundary conditions and for different material utilization scenarios. The last step is prototyping and physical modelling process. Case studies were undertaken to test the methodology, and the outputs were compared. The results underlined that materials, such as cotton and flax, obtained advantages compared to the synthetic ones, such as polyester, in terms of their behaviour. Thus, the lightweight structures that are produced by the principles of knitting patterns can demonstrate possibilities for the utilization of natural materials while minimizing the quantity of materials employed.
keywords Lightweight structures, natural fibres, computational design, structural performance, knitting pattern
series eCAADe
email
last changed 2023/12/10 10:49

_id ecaade2015_22
id ecaade2015_22
authors Keles, Hacer Yalim
year 2015
title Embedding Parts in Sketches Using a Parallel Evolutionary Approach
doi https://doi.org/10.52842/conf.ecaade.2015.1.269
source Martens, B, Wurzer, G, Grasl T, Lorenz, WE and Schaffranek, R (eds.), Real Time - Proceedings of the 33rd eCAADe Conference - Volume 1, Vienna University of Technology, Vienna, Austria, 16-18 September 2015, pp. 269-276
summary Detection of emergent shapes in sketches requires extensive exploration of the design space. Automating this process with computational methods enables locating various alternatives sequentially or all at once simultaneously via high computational power. This not only helps efficient design space exploration but also provides a systematic way for keeping track of the design process. However, it is a challenge to define a generic computational method which optimizes the design space searches in time and space. The approaches that are based on optimization may suffer from time efficiency and local minima problems. These problems are substantially solved in this work by performing comprehensive parallel searches in the design space with a genetic algorithm. Advantage of this approach is that the local minima problem is reduced significantly without increasing the execution times.
wos WOS:000372317300029
series eCAADe
email
last changed 2022/06/07 07:52

_id 39cb
authors Kelleners, Richard H.M.C.
year 1999
title Constraints in object-oriented graphics
source Eindhoven University of Technology
summary In the area of interactive computer graphics, two important approaches to deal with the complexity of designing and implementing graphics systems are object-oriented programming and constraint-based programming. From literature, it appears that combination of these two has clear advantages but has also proven to be difficult. One of the main problems is that constraint programming infringes the information hiding principle of object-oriented programming. The goal of the research project is to combine these two approaches to benefit from the strengths of both. Two research groups at the Eindhoven University of Technology investigate the use of constraints on graphics objects. At the Architecture department, constraints are applied in a virtual reality design environment. At the Computer Science department, constraints aid in modeling 3D animations. For these two groups, a constraint system for 3D graphical objects was developed. A conceptual model, called CODE (Constraints on Objects via Data flows and Events), is presented that enables integration of constraints and objects by separating the object world from the constraint world. In the design of this model, the main aspect being considered is that the information hiding principle among objects may not be violated. Constraint solvers, however, should have direct access to an object’s internal data structure. Communication between the two worlds is done via a protocol orthogonal to the message passing mechanism of objects, namely, via events and data flows. This protocol ensures that the information hiding principle at the object-oriented programming level is not violated while constraints can directly access “hidden” data. Furthermore, CODE is built up of distinct elements, or entity types, like constraint, solver, event, data flow. This structure enables that several special purpose constraint solvers can be defined and made to cooperate to solve complex constraint problems. A prototype implementation was built to study the feasibility of CODE. Therefore, the implementation should correspond directly to the conceptual model. To this end, every entity (object, constraint, solver) of the conceptual model is represented by a separate process in the language MANIFOLD. The (concurrent) processes communicate by events and data flows. The implementation serves to validate the conceptual model and to demonstrate that it is a viable way of combining constraints and objects. After the feasibility study, the prototype was discarded. The gained experience was used to build an implementation of the conceptual model for the two research groups. This implementation encompassed a constraint system with multiple solvers and constraint types. The constraint system was built as an object-oriented library that can be linked to the applications in the respective research groups. Special constructs were designed to ensure information hiding among application objects while constraints and solvers have direct access to the object data. CODE manages the complexity of object-oriented constraint solving by defining a communication protocol to allow the two paradigms to cooperate. The prototype implementation demonstrates that CODE can be implemented into a working system. Finally, the implementation of an actual application shows that the model is suitable for the development of object-oriented software.
keywords Computer Graphics; Object Oriented Programming; Constraint Programming
series thesis:PhD
last changed 2003/02/12 22:37

_id e1a8
authors Kellogg, Richard E.
year 1985
title CAD-Spreadsheet Linkages for Design and Analysis
doi https://doi.org/10.52842/conf.acadia.1985.109
source ACADIA Workshop ‘85 [ACADIA Conference Proceedings] Tempe (Arizona / USA) 2-3 November 1985, pp. 109-118
summary This paper reports on two systems under development which link a CAD system with a spreadsheet. The first extracts areas and R-values from a special AutoCAD drawing and processes the information in a Lotus 1-2-3 spreadsheet to obtain total heatloss for a building. The second is a prototype expert system which uses space labels from an AutoCAD "bubble-diagram" to print lists of design recommendations extracted from a Lotus 1-2-3 data-base. These methods emphasize drawing as the primary design activity, while providing immediate factual feedback about the design proposal.

series ACADIA
email
last changed 2022/06/07 07:52

_id 1fbd
authors Kelly, J.G., Aouad, G., Rezgui, Y.and Crofts, J.
year 1997
title Information systems developments in the UK construction industry
source Automation in Construction 6 (1) (1997) pp. 17-22
summary The paper is based on a synopsis of work completed in 1995 as part of the 'Building IT 2005' project in the UK (J.G. Kelly, Procurement information systems, Building IT 2005, Construction IT Forum, Cambridge, 1995). Selected current UK research is reported and a revised view of the future is offered on the basis of this new work.
series journal paper
more http://www.elsevier.com/locate/autcon
last changed 2003/05/15 21:22

_id ecaade2009_060
id ecaade2009_060
authors Kelly, Nick; Gero, John
year 2009
title Constructive Interpretation in Design Thinking
doi https://doi.org/10.52842/conf.ecaade.2009.097
source Computation: The New Realm of Architectural Design [27th eCAADe Conference Proceedings / ISBN 978-0-9541183-8-9] Istanbul (Turkey) 16-19 September 2009, pp. 97-104
summary This paper presents a framework for modeling the way that designers interpret their world during design activity. Designers interpret the world through their expectations. Expectations are derived from situation. Agents form concepts in situations and use concepts in situations. A model of concept formation based upon a geometric representation of conceptual space is described. In the model, expectations are constructed from memory within a situation. In interpretation, the world is made to look like expectations. Some preliminary explorations with an implementation are described.
wos WOS:000334282200011
keywords Interpretation, situatedness, constructive memory, conceptual spaces
series eCAADe
email
last changed 2022/06/07 07:52

_id caadria2011_060
id caadria2011_060
authors Kelly, Nick; John S. Gero and Robert Saunders
year 2011
title Constructive interpretation with examples from interpretation of floor plans
doi https://doi.org/10.52842/conf.caadria.2011.633
source Proceedings of the 16th International Conference on Computer Aided Architectural Design Research in Asia / The University of Newcastle, Australia 27-29 April 2011, pp. 633-642
summary This paper describes the role that interpretation plays in facilitating situated design and presents an implementation that shows a system interpreting floor plans. Designers often see more in what they produce than they intentionally put there. Cognitive studies suggest that this helps develop design ideas. Interpretation is described as the use of expectations to construct an internal representation of an external representation (such as a sketch). An implementation is described. As an example of its capability the system, primed on floor plans, looks at a randomly generated image and can find a floor plan within it. The system produces different results with the same image if it has different expectations. This is used to discuss the notions of a space of possible designs and the two way relationship between expectations informing interpretation and interpretation changing the expectations (design ideas) of a designer. Further work is suggested and the ideas are discussed.
keywords constructive interpretation, situation, floor plan, reinterpretation, push-pull
series CAADRIA
email
last changed 2022/06/07 07:52

_id acadia04_034
id acadia04_034
authors Kelmans, Marsha
year 2004
title Bahá’í Temple temple of ligh
doi https://doi.org/10.52842/conf.acadia.2004.034
source Fabrication: Examining the Digital Practice of Architecture [Proceedings of the 23rd Annual Conference of the Association for Computer Aided Design in Architecture and the 2004 Conference of the AIA Technology in Architectural Practice Knowledge Community / ISBN 0-9696665-2-7] Cambridge (Ontario) 8-14 November, 2004, 34-39
summary The winning entry by Toronto’s Hariri Pontarini Architects (HPA) for the design of the Bahá’í Temple for South America in Santiago, Chile has not gone unnoticed by the architectural community and media. Sumptuous images of the “Temple of Light” described by Gary Michael Dault as “a soap bubble that has alighted, momentarily, on the ground” reveal a dramatic departure from the firm’s portfolio. HPA is responsible for McKinsey & Co. in Toronto and the Schulich School of Business at York University (with RYWA in joint venture). Their work is characterized by close attention to proportion and composition through the meeting of materials. Using conventional methods of construction, the firm is capable of producing a high level of detail refinement.
series ACADIA
last changed 2022/06/07 07:52

_id cdrf2023_466
id cdrf2023_466
authors Kelton Boyter-Grant, Zhouyang Xin, Ding Wen Bao, Xin Yan, Dan Luo
year 2023
title Weaving Tectonics: Algorithmically Optimised Robotic FRP Weaving of Large Scale Planar Forms
doi https://doi.org/https://doi.org/10.1007/978-981-99-8405-3_39
source Proceedings of the 2023 DigitalFUTURES The 5st International Conference on Computational Design and Robotic Fabrication (CDRF 2023)
summary Steel reinforced concrete is a widely used material for constructing large spanning planar building elements due to its strength, durability, and low cost, but its environmental impact, long fabrication time, and relatively low structural performance demonstrate the need for innovation. To address these issues, this study proposes a novel design methodology and fabrication method that integrates robotic Fibre Reinforced Polymer (FRP) woven reinforcement that is optimized using a Multi-Weight Bi-directional Evolutionary Structural Optimization (MW-BESO) algorithm. The optimized FRP reinforcement is then cast in epoxy resin to produce the large scale planar building element. The methodology is evaluated through a Tabletop prototype and other small-scale rapid prototypes, which demonstrate the successes, challenges, and limitations of this approach. The study outlines the material and methodological testing conducted to assess the effectiveness of using the MW-BESO algorithm with robotic FRP weaving and describes the workflow of transforming the resulting 3D MW-BESO geometry into a 2D robotic winding path for fabrication. The research shows that this methodology has the potential to reduce the environmental impact, stimulate innovative design solutions, and streamline the fabrication of large scale building elements, providing a promising avenue for the development of sustainable and efficient construction techniques.
series cdrf
email
last changed 2024/05/29 14:04

_id sigradi2006_e149b
id sigradi2006_e149b
authors Kendir, Elif
year 2006
title Prêt-à-Construire – An Educational Inquiry into Computer Aided Fabrication
source SIGraDi 2006 - [Proceedings of the 10th Iberoamerican Congress of Digital Graphics] Santiago de Chile - Chile 21-23 November 2006, pp. 162-165
summary This paper aims to show and discuss the relevance of developing necessary strategies for reintegrating the concept of fabrication into the architectural design process. The discussion will be partly based on the outcome of a graduate architectural design studio conducted in Spring semester 2002-2003. The graduate studio was part of a series of exploratory studies conducted on the nature of architectural design process transformed by information technologies. Preceded by studios investigating cognition and representation, this last studio focused on the concept of fabrication. The overarching aim of the studio series was to put CAD and CAM in context both within the actual architectural design process and within architectural education. The last of this series, which will be discussed within the frame of this paper, has specifically focused on CAM and the concept of fabrication in architecture. In accordance with the nature of a design studio, the research was more methodological than technical. The studio derived its main inspiration from the constructional templates used in dressmaking, which can be considered as an initial model for mass customization. In this context, the recladding of Le Corbusier’s Maison Domino was given as the main design problem, along with several methodological constraints. The main constraint was to develop the design idea through constructional drawings instead of representational ones. The students were asked to develop their volumetric ideas through digital 3D CAD models while working out structural solutions on a physical 1/50 model of Maison Domino. There was also a material constraint for the model, where only specified types of non-structural paper could be used. At this stage, origami provided the working model for adding structural strength to sheet materials. The final outcome included the explanation of different surface generation strategies and preliminary design proposals for their subcomponents. The paper will discuss both the utilized methodology and the final outcome along the lines of the issues raised during the studio sessions, some of which could be decisive in the putting into context of CAD – CAM in architectural design process. One such issue is mass customization, that is, the mass production of different specific elements with the help of CAM technologies. Another issue is “open source” design, indicating the possibility of a do-it-yourself architecture, where architecture is coded as information, and its code can be subject to change by different designers. The final key issue is the direct utilization of constructional drawings in the preliminary design phase as opposed to representational ones, which aimed at reminding the designer the final phase of fabrication right from the beginning. Finally, the paper will also point at the problems faced during the conduct of the studio and discuss those in the context of promoting CAM for architectural design and production in countries where there is no actual utilization of these technologies for these purposes yet.
keywords Education; Fabrication; CAM
series SIGRADI
email
last changed 2016/03/10 09:53

_id caadria2006_227
id caadria2006_227
authors KENFIELD GRIFFITH, LARRY SASS
year 2006
title COMPUTING & MATERIALIZING NON-UNIFORM SHAPES: An evolutionary approach to generate and digital fabricate non-uniform masonry walls
doi https://doi.org/10.52842/conf.caadria.2006.x.m4e
source CAADRIA 2006 [Proceedings of the 11th International Conference on Computer Aided Architectural Design Research in Asia] Kumamoto (Japan) March 30th - April 2nd 2006, 227-235
summary A novel evolutionary system used for the production of design information for digital fabrication is presented. This program generates information for physical construction as architectural models of double-curved walls built from unique masonry units. We present a series of computer programs and physical models as examples of straight and curved walls generated from an evolutionary system built for design. The wall examples here are built of non-uniform, interlocking units. This project is an exploration of evolutionary design tools that construct double-curved structures in CAD for fabrication with a 3D printer.
series CAADRIA
email
last changed 2022/06/07 07:49

_id 392b
authors Kensek, K. and Dodd, L. and Cipolla, N.
year 2002
title Fantastic Reconstructions or Reconstructions of the Fantastic? Tracking and Presenting Ambiguity, Alternatives, and Documentation in Virtual Worlds
doi https://doi.org/10.52842/conf.acadia.2002.289
source Thresholds - Design, Research, Education and Practice, in the Space Between the Physical and the Virtual [Proceedings of the 2002 Annual Conference of the Association for Computer Aided Design In Architecture / ISBN 1-880250-11-X] Pomona (California) 24-27 October 2002, pp. 289-302
summary This paper considers the presence of ambiguity, evidence, and alternatives in virtual reconstructions ofancient, historic, and other no-longer-existing environments. Because the foundation of thesereconstructions is data coupled to interpretations, virtual intellectual products can be grounded throughcritique and citations. The real-world basis for a virtual world may include multiple sources of evidence.This paper will demonstrate a methodology for making ambiguity, the quality of the evidence, andalternative reconstructions dynamically transparent to a user. This methodology harnesses thedynamism and perceptual expectations of multimedia-literate users. In our experiments we have mainlyused Flash and rollovers to create a static version of a “self-tour” that lets the viewer engage ambiguityand evidence in a virtual world dynamically and interactively so that the level of confidence can bemediated and adjusted as desired.By creating these tools, reconstructions can be explicitly linked to the real world while maintaining theflexibility, experience, and interactivity of the multimedia environment. Most importantly, the virtualrendition offers researchers the ability to show a complex set of variables dynamically, thereby allowingthem to be intuitively and interactively grasped in combination, a process that is not presently possibleusing standard techniques of static research presentation.
series ACADIA
email
last changed 2022/06/07 07:52

_id f197
authors Kensek, K., Leuppi, J. and Noble, D.
year 2000
title Plank Lines of Ribbed Timber Shell Structures
doi https://doi.org/10.52842/conf.acadia.2000.261
source Eternity, Infinity and Virtuality in Architecture [Proceedings of the 22nd Annual Conference of the Association for Computer-Aided Design in Architecture / 1-880250-09-8] Washington D.C. 19-22 October 2000, pp. 261-266
summary This paper discusses a method for determining the plank lines of ribbed timber shell structures. The information is necessary for the construction of the roof, but the information is usually not depicted accurately in three-dimensional modeling programs.
keywords Geodesic Line, Finite Element Algorithm, Ribbed Shell Structure, Lightweight Structure, Timber Construction.
series ACADIA
email
last changed 2022/06/07 07:52

_id 6d34
authors Kensek, Karen and Noble, Doug (Eds.)
year 1992
title Mission - Method - Madness [Conference Proceedings]
doi https://doi.org/10.52842/conf.acadia.1992
source ACADIA Conference Proceedings / ISBN 1-880250-01-2 ) 1992, 232 p.
summary The papers represent a wide variety of exploration into the uses of computers in architecture. We have tried to impose order onto the collection by organizing them into six sessions: Metaphor, Mission, Method, Modeling for Visualization, Modeling, and Generative Systems. As with any ordering system for such a diverse selection, some session papers are strongly related while others are loosely grouped. Madness, an additional session not in the proceedings, will include short presentations of work in progress. Regarding the individual papers, it is particularly exciting to see research being conducted that is founded on previous work done by others. It is also interesting to note that half of the papers have been submitted by teams of authors. Whether this represents "computer supported cooperative work" remains to be seen. Certainly the work in this book represents an interesting and wide variety of explorations into computer supported design in architecture.
series ACADIA
email
more http://www.acadia.org
last changed 2022/06/07 07:49

_id 6062
authors Kensek, Karen and Noble, Douglas
year 1999
title Digital Constructions of Art Works: A Method for Exploring Four Dimensions
source III Congreso Iberoamericano de Grafico Digital [SIGRADI Conference Proceedings] Montevideo (Uruguay) September 29th - October 1st 1999, pp. 259-263
summary To animate is to give life or motion to an object. In this study, the method for exploring in four dimensions was the use of animation in a three dimensional model; the objects were well known paintings or drawings. Although architectural studies were encouraged, a range of paintings was chosen and different intentions about the role of animation were investigated.
series SIGRADI
email
last changed 2016/03/10 09:53

_id c239
authors Kensek, Karen M. and Noble, Douglas E.
year 1994
title Student Initiated Computer Explorations in the Design Studio
doi https://doi.org/10.52842/conf.acadia.1994.187
source Reconnecting [ACADIA Conference Proceedings / ISBN 1-880250-03-9] Washington University (Saint Louis / USA) 1994, pp. 187-194
summary Many schools of architecture have been attempting to integrate computer applications into their curriculum. This paper will briefly discuss computer-aided design courses that are offered at USC, courses that are similar to those being offered at many universities, and then describe three exceptional cases where the student initiated the use of the computer in a way that was unexpected and different from the methods being taught. A result of conscious deliberation by the student, this experimentation resulted in unexpected discoveries by the instructors of the course. It is this digital serendipity that we wish to explore and discuss. Only occasionally do we hear much about these explorations in formal proceedings and conferences, but they are some of the most intriguing and interesting aspects of computer integration in design.
series ACADIA
email
last changed 2022/06/07 07:52

_id sigradi2005_640
id sigradi2005_640
authors Kensek, Karen M.
year 2005
title Digital Reconstructions: Confidence and AmbiguitY
source SIGraDi 2005 - [Proceedings of the 9th Iberoamerican Congress of Digital Graphics] Lima - Peru 21-24 november 2005, vol. 2, pp. 640-644
summary Digital representations have progressed tremendously from the earliest wireframe images to realistic ray-traced renderings that are often indistinguishable from real-life. Yet, in many cases, in the fooling of the eyes, one should not also fool the brain. Especially in the reconstruction of the past, it may be useful for the visualization to also contain information about the certainty of the result. Methods exist to show what data was missing and is now restored and the confidence level of the reconstruction. This in-progress summary paper will discuss the overall usefulness of many of these techniques and list methods from architecture, archaeology, and other fields towards providing information beyond the visualization.
series SIGRADI
email
last changed 2016/03/10 09:53

_id cc20
authors Kensing, Finn
year 1998
title Participatory Design: Issues and Concerns
source Computer Supported Cooperative Work (CSCW) 7(3): 167-185; Jan 1998
summary We characterize Participatory Design (PD) as a maturing area of research and as anevolving practice among design professionals. Although PD has been applied outside of technologydesign, here we focus on PD in relation to the introduction of computer-based systems at work.We discuss three main issues addressed by PD researchers; the politics of design; the nature ofparticipation; and method, tools and techniques for participation. We also report on the conditionsfor the transfer of “PD results” to workers, user groups, and design professionals that have characterizedPD over time and across geopolitical terrains. The topic of the sustainability of PD within anorganizational context is also considered. The article concludes with a discussion of common issuesexplored within PD and CSCWand frames directions for a continuing dialogue between researchersand practitioners from the two fields. The article draws on a review of PD and CSCW literatures aswell as on our own research and practical experiences.
keywords CSCW; Design Professionals; Participatory Design; Politics of Design; Sustainability
series other
email
last changed 2002/07/07 16:01

_id ijac20064308
id ijac20064308
authors Kenzari, Bechir
year 2006
title Physical Modeling: the Convergence of Cutting-edge Technologies and Miniature Tooling
source International Journal of Architectural Computing vol. 4 - no. 3, 119-134
summary When Rapid Prototyping and CAD/CAM technologies (including CNC and Laser Cutting) became affordable, ten years ago or so, their reception within model-making circles turned from positive to disappointing because of their incomplete adaptability to the making of architectural objects. Then it was discovered, just few years later, that many modeling details can only be worked out through the use of specific materials, accessories and miniature tools which neither fall under the CNC, Laser or Rapid Prototyping headings. This new situation has implied, among other things, that the status of the model is to be defined in terms of a convergence of particular technological possibilities. Using two specific models as examples, the present article will debate this convergence, which is now allowing a smooth and fluid interaction between several model-making techniques. The tendency of model-making to move closer to the real act of building will also be highlighted.
series journal
last changed 2007/03/04 07:08

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