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A Software Framework for the Portable Parallelization of Particle-Mesh Simulations [chapter]

I. F. Sbalzarini, J. H. Walther, B. Polasek, P. Chatelain, M. Bergdorf, S. E. Hieber, E. M. Kotsalis, P. Koumoutsakos
2006 Lecture Notes in Computer Science  
We present a software framework for the transparent and portable parallelization of simulations using particle-mesh methods.  ...  The present library addresses these issues for a wide range of applications, and it enables orders of magnitude increase in the number of computational elements employed in particle methods.  ...  As a result, the physical and computational domains are rectangular or cuboidal in two or three dimensions.  ... 
doi:10.1007/11823285_76 fatcat:5xq2xari5bcxbnbjccdwmmpj6q

Medical imaging specialists and 3D

Teddy Seyed, Francisco Marinho Rodrigues, Frank Maurer, Anthony Tang
2014 Proceedings of the extended abstracts of the 32nd annual ACM conference on Human factors in computing systems - CHI EA '14  
In this work, we explore a potential solution to these challenges by using tangible interaction techniques with a mobile device to simplify 3D interactions for medical imaging specialists.  ...  , as well as highlight that domain plays an important role in 3D interaction techniques.  ...  Two common methods of mapping input devices to output are position control, which strictly maps input to a position (e.g. a mouse), and rate-control, where the input force and resistance is mapped to an  ... 
doi:10.1145/2559206.2581301 dblp:conf/chi/SeyedRMT14 fatcat:65kyyvp6irhsnd45oqx7jdakqa

GPU-based frequency domain volume rendering

Ivan Viola, Armin Kanitsar, Meister Eduard Gr�ller
2004 Proceedings of the 20th spring conference on Computer graphics - SCCG '04  
Frequency domain volume rendering (FVR) is a volume rendering technique with lower computational complexity as compared to other techniques.  ...  In this paper the FVR algorithm is accelerated by factor of 17 by mapping the rendering stage to the GPU.  ...  , Jason Mitchell, Evan Hart, and especially Mark Segal from the ATI corporation for providing a Radeon 9800 XT and for general support.  ... 
doi:10.1145/1037210.1037218 dblp:conf/sccg/ViolaKG04 fatcat:elixcolgkvcb3dli7dstymgiyu

PPM – A highly efficient parallel particle–mesh library for the simulation of continuum systems

I.F. Sbalzarini, J.H. Walther, M. Bergdorf, S.E. Hieber, E.M. Kotsalis, P. Koumoutsakos
2006 Journal of Computational Physics  
In this formulation, the grid-free character of particle methods is relaxed by the introduction of a mesh for the reinitialization of the particles, the computation of the field equations, and the discretization  ...  The present library solves the key parallelization issues involving particle-mesh interpolations and the balancing of processor particle loading, using a novel adaptive tree for mixed domain decompositions  ...  Domain decompositions The PPM provides a number of different adaptive domain decomposition techniques for particles, meshes, and volumes, the latter defining geometric sub-domains with neither meshes nor  ... 
doi:10.1016/j.jcp.2005.11.017 fatcat:jkvh4xqjpbgvlike56zcvsp4sq

On a stochastically grain-discretised model for 2D/3D temperature mapping prediction in grinding

Hao Nan Li, Dragos Axinte
2017 International journal of machine tools & manufacture  
To validate theoretical maps, a new methodological approach to capture 2D/3D temperature maps based on an array of sacrificial thermocouples have also been proposed.  ...  micro interactions (i.e. rubbing, ploughing and cutting), and the full 2D/3D temperature maps with highly-localised thermal information, even at the grain scale (i.e. with the thermal impacts induced  ...  Problem definition Grinding process could be considered as a material removal process where a multitude of discrete grains simultaneously interact with the workpiece.  ... 
doi:10.1016/j.ijmachtools.2017.01.004 fatcat:aipie6zdxfbw5c2s76byhvxf2u

Discrete Structure of an RNA Folding Intermediate Revealed by Cryo-electron Microscopy

Nathan J. Baird, Steven J. Ludtke, Htet Khant, Wah Chiu, Tao Pan, Tobin R. Sosnick
2010 Journal of the American Chemical Society  
We use cryo-electron microscopy and single particle image reconstruction to determine the structure of the major folding intermediate of the specificity domain of a ribonuclease P ribozyme.  ...  Our results support the existence of a discrete conformation of this folding intermediate. * trsosnic@uchicago.edu . Supporting Information Available.  ...  In the case of the S-domain, the discrete structure of the intermediate is a result of both native and non-native interactions.  ... 
doi:10.1021/ja107492b pmid:21038867 pmcid:PMC2988076 fatcat:v7qbst5k3bgjhlz6gw5izbnz4u

Mixed versus impulse-oriented domain decomposition method for granular dynamics

Damien Iceta, David Dureisseix, Pierre Alart
2009 European Journal of Computational Mechanics  
For such problems, domain decomposition approaches are potential interesting alternative solvers. Herein, two robust and generic monoscale approaches are formulated and compared.  ...  In this article, we are concerned with the numerical simulation of granular media, characterized as a large scale discrete system, involving non smooth interactions.  ...  In the case of a discrete structure, there are two common ways to partition it: (i) distribute the elements, the links, or the interactions among substructures, or (ii) distribute the nodes or the grains  ... 
doi:10.3166/ejcm.18.429-443 fatcat:3zw2fgvybray7ntmt43a3dtq2q

A GAUSSIAN MIXTURE MODEL FOR CLASSIFYING THE HUMAN AGE USING DWT AND SAMMON MAP

J. Nithyashri, G. Kulanthaivel
2014 Journal of Computer Science  
A combination of Discrete Wavelet Transformation (DWT) and Sammon Map are used to extract the facial features. The performance of this approach is tested using Album-2 of MORPH database.  ...  A maximum classification rate of 99.52% is achieved in stage-1, whereas 99.46% is achieved in stage-2 using GMM.  ...  A two-stage classification technique is used, in which stage-1 classifies whether the given facial image is an adolescent or not.  ... 
doi:10.3844/jcssp.2014.2292.2298 fatcat:yezg5rzuhvhitd43lhrm4ou7he

Research on Key Technology of Cloud Design for Mechanical Equipment

Jun Chen, Gang Guo, Yonggang Zuo
2013 Sensors & Transducers  
analysis on design demand and mapping technology, serial expand strategy on discrete design resource and strategy integrated design task with resource in time, it can implement reasonable allocation and  ...  delivery in the resource demand domain DR, the state control domain T and feasible resource domain R.  ...  Its characteristic is obvious cloudy domain interaction, mapping and integration etc.  ... 
doaj:194ce69506704f7ab076d6cb533634a3 fatcat:iphjjy7trnc2tf3soqyab3svdi

Pointshop 3D: an interactive system for point-based surface editing

Matthias Zwicker, Mark Pauly, Oliver Knoll, Markus Gross
2002 ACM Transactions on Graphics  
One key ingredient of our framework is a novel concept for interactive point cloud parameterization allowing for distortion minimal and aliasing-free texture mapping.  ...  We present a system for interactive shape and appearance editing of 3D point-sampled geometry.  ...  A part of our research on point-based graphics has been supported by MERL, Cambridge MA. We would also like to thank Martin Roth for proofreading the paper.  ... 
doi:10.1145/566654.566584 fatcat:elfxbljvk5ah3mlzrf6i7hzefe

Pointshop 3D

Matthias Zwicker, Mark Pauly, Oliver Knoll, Markus Gross
2002 ACM Transactions on Graphics  
One key ingredient of our framework is a novel concept for interactive point cloud parameterization allowing for distortion minimal and aliasing-free texture mapping.  ...  We present a system for interactive shape and appearance editing of 3D point-sampled geometry.  ...  A part of our research on point-based graphics has been supported by MERL, Cambridge MA. We would also like to thank Martin Roth for proofreading the paper.  ... 
doi:10.1145/566570.566584 fatcat:mekuzacny5bnvefhvxd6ox3g7y

Multidimensional Data Medical Dataset Using Interactive Visualization Star Coordinate Technique

Noor Elaiza Abd Khalid, Marina Yusoff, Ezzatul Akma Kamaru-Zaman, Izyan Izzati Kamsani
2014 Procedia Computer Science  
datasets An interactive Star coordinates is designed consists of four stages that includes Information Objects Transformation; Dimension Mapping; Interactive Features design and Coloring.  ...  This paper explores the capability of interactive star coordinate visualization technique to identify clusters correlation between selected attributes using interactive star coordinate for multi-dimensional  ...  Acknowledgement The authors wish to thank to UiTM for the facilities provided. Special gratitude to Prof Dr.  ... 
doi:10.1016/j.procs.2014.11.059 fatcat:mmhmdgfxfnheff3veix65ue5um

A Taxonomy of Integration Techniques for Spatial and Non-Spatial Visualizations [article]

Johannes Sorger, Thomas Ortner, Harald Piringer, Gerd Hesina, Eduard Gröller
2015 International Symposium on Vision, Modeling, and Visualization  
The contribution of this paper is a taxonomy that describes a holistic design space for integrating components of spatial and abstract visualizations.  ...  and methods for abstract data lacking explicit spatial references (information visualization).  ...  Waser, A. Konev, and M. Sedlmair for their valuable comments.  ... 
doi:10.2312/vmv.20151258 dblp:conf/vmv/SorgerOPHG15 fatcat:l74hyy53yrdlnl3gkcirg6dgza

Motion To Gesture To Sound : Mapping For Interactive Dance

Jan C. Schacher
2010 Zenodo  
A specific interactive dance project is discussed, in which two complementary sensing modes are integrated to obtain higherlevel expressive gestures.  ...  Mapping in interactive dance performance poses a number of questions related to the perception and expression of gestures in contrast to pure motion-detection and analysis.  ...  Gesture mapping builds the bridge between the domains of space, bodies and motion and the abstract structures of a real-time interactive audio composition.  ... 
doi:10.5281/zenodo.1177889 fatcat:jpgd6vett5cz5gdz3ncaczwa3q

Using FDFD Technique in Two-Dimensional TE Analysis for Modeling Clutter in Wall Penetrating Radar

David Insana, Carey M. Rappaport
2014 International Journal of Antennas and Propagation  
Finite difference frequency domain (FDFD) computational electromagnetic modeling is implemented to perform a two-dimensionalTEzanalysis for the application of wall penetrating radar (WPR).  ...  Analysis starts with a simple model that continues to build based on the dominant scattering features of the scene. FDFD provides a steady state frequency response to a discrete excitation.  ...  Introduction Previous work on EM field modeling for WPR commonly used time domain-based techniques to determine the true time-varying fields that are backscattered from the interaction of an excitation  ... 
doi:10.1155/2014/274063 fatcat:ddx3zrcvxrhqljeqdkrr72a4me
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