78,216 Hits in 3.6 sec

MAP65 Coordinate Microtubule Growth during Bundle Formation

Virginie Stoppin-Mellet, Vincent Fache, Didier Portran, Jean-Louis Martiel, Marylin Vantard, Takashi Toda
2013 PLoS ONE  
Model simulations reveal that rescue frequencies are higher between parallel than between anti-parallel MTs.  ...  In cooperation with microtubule-associated proteins (MAPs), MTs form bundles endowing cells with specific mechanisms to control their shape or generate forces.  ...  To evaluate the respective effects of MAP65-1 links between parallel MTs versus anti-parallel MTs, we simulated the growth of bundles of 10 MTs for different combinations of pR ap and pR p .  ... 
doi:10.1371/journal.pone.0056808 pmid:23437247 pmcid:PMC3578873 fatcat:vnxalx7ukzgp3fwdxukxl4mivu

14.9 TFLOPS Three-Dimensional Fluid Simulation for Fusion Science with HPF on the Earth Simulator

H. Sakagami, H. Murai, Yoshiki Seo, M. Yokokawa
2002 ACM/IEEE SC 2002 Conference (SC'02)  
We succeeded in getting 14.9 TFLOPS performance when running a plasma simulation code IMPACT-3D parallelized with High Performance Fortran on 512 nodes of the Earth Simulator.  ...  Shift communications were manually tuned to get best performance by using HPF/JA extensions, which was designed to give the users more control over sophisticated parallelization and communication optimizations  ...  We would like to use the HPF system to parallelize many other simulation programs to accelerate the earth science.  ... 
doi:10.1109/sc.2002.10051 dblp:conf/sc/SakagamiMSY02 fatcat:mlg2q7iytnfard3exw37hrqvsa

Blood Flow Arterial Network Simulation with the Implicit Parallelism Library SkelGIS

Hélène Coullon, Jose-Maria Fullana, Pierre-Yves Lagrée, Sébastien Limet, Xiaofei Wang
2014 Procedia Computer Science  
Most implicit parallelism solutions to solve partial differential equations, and scientific simulations, are based on the specificity of numerical methods, where the user has to call specific functions  ...  This library relies on four concepts which are applied, in this paper, to the specific case of network simulations. SkelGIS is evaluated on a blood flow simulation in arterial networks.  ...  of {DP M ap} 26 Use of [] on {DP M ap} 27 ItA++ 28 end (a), while Figure 3(b) represents execution times with a logarithmic scale.  ... 
doi:10.1016/j.procs.2014.05.010 fatcat:2yfyvokyzncpppaoqhqbqqn4qi

Human Heart Simulation Software for Parallel Computing Systems

Sergei Pravdin, Konstantin Ushenin, Andrey Sozykin, Olga Solovyova
2015 Procedia Computer Science  
We describe our model integration design, the software system architecture, and the parallel implementation of the system using OpenMP technology.  ...  In addition, we provide two examples of simulation results.  ...  We managed to achieve a 4x speedup with 6 cores for the electrical simulation (both for the AP and the EO models).  ... 
doi:10.1016/j.procs.2015.11.046 fatcat:fd6nl2wwijcqfjeklaanvdiykq

Lattice Simulations using OpenACC compilers [article]

Pushan Majumdar
2013 arXiv   pre-print
In this article we look at the performance gain in lattice simulations with dynamical fermions using OpenACC compilers.  ...  OpenACC compilers allow one to use Graphics Processing Units without having to write explicit CUDA codes.  ...  The author would also like to acknowledge the DST grant SR/S2/HEP-35/2008 for funding the cluster for the comparison runs and on which the hand coded CUDA program was developed.  ... 
arXiv:1311.2719v1 fatcat:mieruyjeafd3rgnrqbyfnjrx54

AP-IO: Asynchronous Pipeline I/O for Hiding Periodic Output Cost in CFD Simulation

Ren Xiaoguang, Xu Xinhai
2014 The Scientific World Journal  
CFD simulations, which can reduce the total execution time up to about 40%.  ...  Computational fluid dynamics (CFD) simulation often needs to periodically output intermediate results to files in the form of snapshots for visualization or restart, which seriously impacts the performance  ...  Acknowledgments We are pleased to acknowledge the National Natural Sci-  ... 
doi:10.1155/2014/273807 pmid:24955390 pmcid:PMC3997917 fatcat:m4wl7hlg7rfy7abvuxajzvxx7e

A Nanosecond Molecular Dynamics Study of Antiparallel d(G)7Quadruplex Structures: Effect of the Coordinated Cations

Shibasish Chowdhury, Manju Bansal
2001 Journal of Biomolecular Structure and Dynamics  
Antiparallel structures are stable during the simulation, with root mean square deviation values of ~1.5 Å from the initial structures.  ...  Hydrogen bonding patterns within the G-tetrads depend on the nature of the coordinated ion, with the G-tetrad undergoing local structural variation to accommodate different cations.  ...  The authors are grateful to SERC, I. I. Sc., for computational facilities.  ... 
doi:10.1080/07391102.2001.10506696 pmid:11334103 fatcat:auudddrj7rd6jmz5gc7hkf53f4

Fast multi-core co-simulation of Cyber-Physical Systems: Application to internal combustion engines

Abir Ben Khaled, Mongi Ben Gaid, Nicolas Pernet, Daniel Simon
2014 Simulation modelling practice and theory  
A suitable off-line scheduling algorithm, based on the input/output dynamics of the models, is proposed to minimize the simulation errors induced by the parallel execution.  ...  The proposed scheme leads to schedule a large number of operations with a wide range of execution times.  ...  For the case study, all the cylinders must wait for the execution of the AP. • Modular co-simulation of the split model with broken data dependencies.  ... 
doi:10.1016/j.simpat.2014.05.002 fatcat:3dupnbab3ba4fmv734ad6mqeu4

Reversing Parallel Programs with Blocks and Procedures

James Hoey, Irek Ulidowski, Shoji Yuen
2018 Electronic Proceedings in Theoretical Computer Science  
We show how to reverse a while language extended with blocks, local variables, procedures and the interleaving parallel composition.  ...  Inversion is defined with a set of operational semantics that use saved information to undo an execution.  ...  Acknowledgements We are grateful to the referees for their detailed and helpful comments and suggestions.  ... 
doi:10.4204/eptcs.276.7 fatcat:bmnw7fe65faynjlgqe3qmxgcaq

Mobility and Network Selection in Heterogeneous Wireless Networks: User Approach and Implementation

Cristian Roman, Ruizhi Liao, Peter Ball, Shumao Ou
2016 Network Protocols and Algorithms  
Realistic simulations are performed by generating mobility traces of Oxford from Google Maps and overlaying the real locations of existing WiFi Access Points.  ...  can already be used for communicating with different mobile entities at various monetary costs.A packet scheduler, included in a shim layer between the network layer and the medium access (MAC) layer,  ...  For the simulation we have chosen only the APs with the highest QoS, strictly superior to 6, resulting in 162 APs.  ... 
doi:10.5296/npa.v8i2.9327 fatcat:k5sy7opr6nd5lpcesvknqw3gzu

Transverse propagation in an expanded PSpice model for cardiac muscle with gap-junction ion channels

Lakshminarayanan Ramasamy, Nicholas Sperelakis
2006 BioMedical Engineering OnLine  
In those studies, there were pronounced edge (boundary) effects and end-effects even within single chains. Transverse velocity increased with increase in model size.  ...  3 to 5, to 7, to 10, and to 20.  ...  Note that the latent period to the first AP was markedly increased compared to that in Figure 2 as expected, because with high cell coupling, it is more difficult to produce excitation with a fixed stimulus  ... 
doi:10.1186/1475-925x-5-46 pmid:16875501 pmcid:PMC1559629 fatcat:yud6yj2y7fbwhimvuky2xhm6te

Biomechanical efficacy of four different dual screws fixations in treatment of talus neck fracture: a three-dimensional finite element analysis

Zhengrui Fan, Jianxiong Ma, Jian Chen, Baocheng Yang, Ying Wang, Haohao Bai, Lei Sun, Yan Wang, Bin Lu, Ben-chao Dong, Aixian Tian, Xinlong Ma
2020 Journal of Orthopaedic Surgery and Research  
Then, 3D model of talar neck fracture which fixed with antero-posterior (AP) parallel dual screws, antero-posterior (AP) cross dual screws, postero-anterior (PA) parallel dual screws, and postero-anterior  ...  (PA) cross dual screws were simulated.  ...  Ethics approval and consent to participate  ... 
doi:10.1186/s13018-020-1560-8 pmid:32046746 pmcid:PMC7014601 fatcat:mpabo6g5wbantaejdl37shjxb4

Cooperative management of wireless mesh networks

George Athanasiou
2012 2012 IFIP Wireless Days  
Due to the large number of mesh APs, the STAs must decide to be associated with the mesh APs that will provide them the best QoS.  ...  The peripheral routers serve as access points (APs) and are associated with the stations (STAs) that are distributed in the network.  ...  to support 24 sessions in parallel.  ... 
doi:10.1109/wd.2012.6402806 dblp:conf/wd/Athanasiou12 fatcat:6ijwgm5sdfcspnlwpng64wnvey

TCP with adaptive pacing for multihop wireless networks

Sherif M. ElRakabawy, Alexander Klemm, Christoph Lindemann
2005 Proceedings of the 6th ACM international symposium on Mobile ad hoc networking and computing - MobiHoc '05  
The novel TCP variant is denoted as TCP with Adaptive Pacing (TCP-AP).  ...  Opposed to previous proposals for improving TCP over multihop IEEE 802.11 networks, TCP-AP retains the end-to-end semantics of TCP and does neither rely on modifications on the routing or the link layer  ...  In contrast to [5] , [17] , TCP-AP retains the end-to-end semantics of TCP without relying on any cross-layer information from intermediate nodes along the path.  ... 
doi:10.1145/1062689.1062726 dblp:conf/mobihoc/ElRakabawyKL05 fatcat:3nalwns4ineprfhcgft7xsfziy

Accuracy of Proximal Tibial Bone Cut Using Anterior Border of Tibia as Bony Landmark in Total Knee Arthroplasty

Kazutaka Nishikawa, Hideki Mizu-uchi, Ken Okazaki, Shuichi Matsuda, Yasutaka Tashiro, Yukihide Iwamoto
2015 Journal of Arthroplasty  
The extramedullary alignment guide was set parallel to a line connecting the proximal and distal one-thirds of the anterior border of the tibia while the rotational direction of the distal end of the guide  ...  Significant differences were detected in the ideal coronal tibial component angles with improvements from 87.2% to 95.9%.  ...  In Method B, the guide was set parallel to a line connecting the proximal and distal one-third of the anterior border while the rotational direction of the distal end of the guide was adjusted to the AP  ... 
doi:10.1016/j.arth.2015.06.055 pmid:26233701 fatcat:w4e3ia77d5e4tosmqon4tsdl4u
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