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On the generation of RVE-based models of composites reinforced with long fibres or spherical particles

G. Catalanotti
2016 Composite structures  
The algorithm is fast, able to represent the randomness of the material and to generate RVEs with any volume fraction, from 0 to its highest theoretical value, i.e. π 3 √ 2 ≈ 0.74 and π √ 3 6 ≈ 0.91 for  ...  Composite Structures, 138, 84-95. https://doi.  ...  Acknowledgments The author would like to thank project NORTE-07-024-FEDER-000033 -Composite Materials, Structures and Processes, within the Portuguese Na-  ... 
doi:10.1016/j.compstruct.2015.11.039 fatcat:uki3gymuwjgl5nilqp4uad2kia

Frontmatter, Table of Contents, Preface, Organization, External Reviewers, List of Authors

Klaus Jansen, José D. P. Rolim, David P. Williamson, Santosh S. Vempala, Marc Herbstritt
2017 International Workshop on Approximation Algorithms for Combinatorial Optimization  
LIPIcs volumes are published according to the principle of Open Access, i.e., they are available online and free of charge.  ...  Vempala, and David P. Williamson  ...  We would like to thank all the authors who submitted papers, the invited speakers, Uriel Feige and Moses Charikar, the members of the Program Committees, and the external reviewers.  ... 
doi:10.4230/lipics.approx-random.2017.0 dblp:conf/approx/X17 fatcat:lmijbscgvjde3djrguepp2ebca

Front Matter, Table of Contents, Preface, Program Committees, External Reviewers, List of Authors

Klaus Jansen, Claire Mathieu, José D. P. Rolim, Chris Umans, Marc Herbstritt
2016 International Workshop on Approximation Algorithms for Combinatorial Optimization  
LIPIcs volumes are published according to the principle of Open Access, i.e., they are available online and free of charge.  ...  Rolim, and Chris Umans  ...  the Computing and Mathematical Sciences Department at Caltech.  ... 
doi:10.4230/lipics.approx-random.2016.0 dblp:conf/approx/X16 fatcat:5aka2x4msbawlcwc55jleb3htm

Encryption Algorithm - Detecting Chemical Structures using Graph Theory

2019 VOLUME-8 ISSUE-10, AUGUST 2019, REGULAR ISSUE  
In this paper, we have proposed a new algorithm to encrypt and decrypt information of interest, using graph theoretical approach.  ...  Though there are many encryption algorithms available in literature, the requirement of new encryption algorithms also receives importance to prevent any traditional opportunity to sniff data.  ...  There are 7 edges with weights (19 23), (5 11), (7 23), (11 2), (17 23), (7 29) and (23 11). Remove these edges from the graph and the graph obtained is as displayed in fig. 6 .  ... 
doi:10.35940/ijitee.a4693.119119 fatcat:uhesmogxhvffnlbobfxnjyetta

A new approach to rapidly generate random periodic representative volume elements for microstructural assessment of high volume fraction composites

Geng Li, Farzad Sharifpour, Aram Bahmani, John Montesano
2018 Materials & design  
Detailed statistical analyses were conducted for assessing the ability to generate RVEs with nonuniformly dispersed microstructures and either constant or random inclusion sizes for a wide range of volume  ...  The versatile algorithm can rapidly generate RVEs with realistic reinforcement dispersions and high volume fractions up to 80%, which is advantageous compared to other algorithms.  ...  Due to the jamming limit with HCM algorithms, close packing [20] , stirring, [21] , [22] , random sequential expansion (RSE) [23] , and random sequential absorption (RSA) [24] - [26] , algorithms  ... 
doi:10.1016/j.matdes.2018.04.031 fatcat:425lwxoffvhzpjirezntxuxohq

Towards Post-Quantum Cryptography Using Thermal Noise Theory and True Random Numbers Generation

Protais Ndagijimana, Fulgence Nahayo, Marc Kokou Assogba, Adoté François-Xavier Ametepe, Juma Shabani
2020 Journal of Information Security  
The advent of quantum computers and algorithms challenges the semantic security of symmetric and asymmetric cryptosystems. Thus, the implementation of new cryptographic primitives is essential.  ...  In this paper, we propose a random number generation model based on evaluation of the thermal noise power of the volume elements of an electronic system with a volume of 58.83 cm 3 .  ...  Many thanks to the Doctoral School of University of Burundi, IMSP-UAC of Benin and Antenne Afrique des Grands lacs de l'AUF-Burundi for their support.  ... 
doi:10.4236/jis.2020.113010 fatcat:xhh444ihr5aj7jjggwyqivugxa

Integration of a Hybrid Method into an Efficient Reliability-Based Design Optimization Technique for Large Structures

Nader M. Okasha, Osama Ahmed Mohamed
2019 IOP Conference Series: Materials Science and Engineering  
The computational burden imposed by the repetitive and lengthy nature of the structural analyses of large structures has lead researches to continuously devise efficient methods for conducting their reliability  ...  The presence of a considerably large number of random variables in the reliability analyses of large structure is another issue that tends to slow down the design optimization problem.  ...  The optimum volume in the 3 groups case was found as 58691 in 3 and for the 10 groups was 56668 in 3 .  ... 
doi:10.1088/1757-899x/603/4/042039 fatcat:jmcphuhic5gt3iscvck5owbj7i

Randomized Algorithms for Computation of Tucker decomposition and Higher Order SVD (HOSVD) [article]

Salman Ahmadi-Asl, Stanislav Abukhovich, Maame G. Asante-Mensah, Andrzej Cichocki, Anh Huy Phan, Toshihisa Tanaka, Ivan Oseledets
2021 arXiv   pre-print
We discuss random projection and sampling approaches, single-pass, and multi-pass randomized algorithms, and how to utilize them in the computation of the Tucker decomposition and the HOSVD.  ...  Randomized algorithms are efficient tools for handling big data tensors.  ...  The adaptive randomized STHOSVD is also proposed in [23] wherein the randomized rank-revealing algorithms [58] , [59] VOLUME , 2020 Algorithm 7: Random projection HOOI (RP-HOOI) algorithm Input :  ... 
arXiv:2001.07124v5 fatcat:fopp6niy7bgfhk2fg6mmshyvp4

A New Neuro-Dominance Rule for Single Machine Tardiness Problem with Unequal Release Dates [chapter]

Tarık Çakar
2006 Lecture Notes in Computer Science  
Rolim, editors, Parallel Algorithms for Irregularly Structured Problems, Proceedings of the Second International Workshop -Irregular'95, volume 980 of Lecture Notes in Computer Science, pages 317-331.  ...  Randomized methods for the number partitioning problem. Computers & Operations Research, 23(2):103-111, 1996. [23] J.F. Journal of Combinatorial Optimization, 1:211-228, 1997. [36] J.F. Bard.  ... 
doi:10.1007/11840930_100 fatcat:qreid5yz7nhi5pstxv5d43puoa

Randomized Algorithms for Computation of Tucker Decomposition and Higher Order SVD (HOSVD)

Salman Ahmadi-Asl, Stanislav Abukhovich, Maame G. Asante-Mensah, Andrzej Cichocki, Anh Huy Phan, Tohishisa Tanaka, Ivan Oseledets
2021 IEEE Access  
We discuss random projection and sampling approaches, single-pass and multi-pass randomized algorithms and how to utilize them in the computation of the Tucker decomposition and the HOSVD.  ...  Randomized algorithms are efficient tools for handling big data tensors.  ...  A structural preserving variant of Algorithm 8 is developed in [23] where the core tensor takes elements from the original data matrix.  ... 
doi:10.1109/access.2021.3058103 fatcat:zxkzfkpvazd5bnf5ryoch7t62a

Analysis of landslide hazard area in Ludian earthquake based on Random Forests

J.-C. Xie, R. Liu, H.-W. Li, Z.-L. Lai
2015 The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences  
But the relationships among these factors are fuzzy, there also exists heavy noise and high-dimensional, we introduce the random forest algorithm to tolerate these difficulties and get the evaluation result  ...  With the development of machine learning theory, more and more algorithms are evaluated for seismic landslides.  ...  Method Random Forests algorithm was proposed by Leo Breiman in 2011. Random Forests are an effective tool in prediction and they do not overfit.  ... 
doi:10.5194/isprsarchives-xl-7-w3-865-2015 fatcat:ejr2tluvezfuvefomjxrpk2bfi

Numerical generation of a random chopped fiber composite RVE and its elastic properties

Yi Pan, Lucian Iorga, Assimina A. Pelegri
2008 Composites Science And Technology  
A modified Random Sequential Adsorption (RSA) algorithm is proposed to generate the RVE of the composite material.  ...  Initial effort was put on developing algorithms capable of quickly generating complex geometries of composites with random fiber orientations.  ...  Volume Element for the random chopped fiber composite.  ... 
doi:10.1016/j.compscitech.2008.06.007 fatcat:o7qhbwzhenephdyyzkowa3jl3e

JFP volume 23 issue 6 Cover and Back matter

2013 Journal of functional programming  
for random combinatorial structures; the theory of algorithms (including complexity theory), randomised algorithms, probabilistic analysis of algorithms, computational learning theory and optimisation  ...  Topics covered include classical and algebraic graph theory, extremal set theory, matroid theory, probabilistic methods and random combinatorial structures; combinatorial probability and limit theorems  ... 
doi:10.1017/s0956796813000294 fatcat:hbrzxavu45aclga7kgdtwnycia

An Empirical Comparison of Classification Algorithms for Diagnosis of Depression from Brain SMRI Scans

Kuryati Kipli, Abbas Z. Kouzani, Yong Xiang
2013 2013 International Conference on Advanced Computer Science Applications and Technologies  
The algorithms are: Naïve Bayes, Support Vector Machines (SVM) with Radial Basis Function (RBF), SVM Sigmoid, J48, Random Forest, Random Tree, Voting Feature Intervals (VFI), LogitBoost, Simple KMeans  ...  To be diagnostically effective, structural magnetic resonance imaging (sMRI) must reliably distinguish a depressed individual from a healthy individual at individual scans level.  ...  The first author would like to acknowledge the Ministry of Higher Education Malaysia (MoHE) and Universiti Malaysia Sarawak (UNIMAS) for the financial support through the SLAB Ph.D. scholarship and Deakin  ... 
doi:10.1109/acsat.2013.72 fatcat:qs2hp6bvtvfi5hfgkwxh5xmem4

Discrete element method for generating random fibre distributions in micromechanical models of fibre reinforced composite laminates

Yaser Ismail, Dongmin Yang, Jianqiao Ye
2016 Composites Part B: Engineering  
It overcomes the jamming limit appeared in previous methods and is capable of generating high volume fractions of fibres with random distributions and any specified inter-fibre distances.  ...  Abstract A new approach is presented for generating random distribution of fibres in the representative volume element (RVE) of fibre reinforced composite laminates.  ...  Algorithm development using DEM In this section an algorithm is developed in DEM to generate random distributions of fibres with high volume fractions, which improves the previous one proposed by the authors  ... 
doi:10.1016/j.compositesb.2016.01.037 fatcat:ujlxvua5abfbtij3oouuqdwmaa
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