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During their production, single-walled carbon nanotubes form bundles. Owing to the weak van der Waals interaction that holds them together in the bundle, the tubes can easily slide on each other, resulting in a shear modulus comparable to that of graphite. This low shear modulus is also a major obstacle in the fabrication of macroscopic fibres composed of… (More)

- Gábor Csányi, Balázs Szendroi
- Physical review. E, Statistical, nonlinear, and…
- 2004

We study a social network consisting of over 10(4) individuals, with a degree distribution exhibiting two power scaling regimes separated by a critical degree k(crit), and a power law relation between degree and local clustering. We introduce a growing random model based on a local interaction mechanism that reproduces the observed scaling features and… (More)

- Albert P Bartók, Mike C Payne, Risi Kondor, Gábor Csányi
- Physical review letters
- 2010

We introduce a class of interatomic potential models that can be automatically generated from data consisting of the energies and forces experienced by atoms, as derived from quantum mechanical calculations. The models do not have a fixed functional form and hence are capable of modeling complex potential energy landscapes. They are systematically… (More)

- Gabor Csányi, T Albaret, M C Payne, A De Vita
- Physical review letters
- 2004

We describe and test a novel molecular dynamics method which combines quantum-mechanical embedding and classical force model optimization into a unified scheme free of the boundary region, and the transferability problems which these techniques, taken separately, involve. The scheme is based on the idea of augmenting a unique, simple parametrized force… (More)

- Gábor Csányi, Balázs Szendroi
- Physical review. E, Statistical, nonlinear, and…
- 2004

We draw attention to a clear dichotomy between small-world networks exhibiting exponential neighborhood growth, and fractal-like networks, where neighborhoods grow according to a power law. This distinction is observed in a number of real-world networks, and is related to the degree correlations and geographical constraints. We conclude by pointing out that… (More)

- Lívia B Pártay, Albert P Bartók, Gábor Csányi
- The journal of physical chemistry. B
- 2010

We describe a method to explore the configurational phase space of chemical systems. It is based on the nested sampling algorithm recently proposed by Skilling (AIP Conf. Proc. 2004, 395; J. Bayesian Anal. 2006, 1, 833) and allows us to explore the entire potential energy surface (PES) efficiently in an unbiased way. The algorithm has two parameters which… (More)

- Brendon J. Brewer, Lívia B. Pártay, Gábor Csányi
- Statistics and Computing
- 2011

- Balázs Szendroi, Gábor Csányi
- Proceedings. Biological sciences
- 2004

It is widely known that the spread of the human immunodeficiency virus was slower than exponential in several populations, even at the very beginning of the epidemic. We show that this implies a significant reduction in the effective reproductive rate of the epidemic, and describe a general mechanism, related to the clustering properties of the disease… (More)

- Olga Obrezanova, Gábor Csányi, Joelle M. R. Gola, Matthew D. Segall
- Journal of Chemical Information and Modeling
- 2007

In this article, we discuss the application of the Gaussian Process method for the prediction of absorption, distribution, metabolism, and excretion (ADME) properties. On the basis of a Bayesian probabilistic approach, the method is widely used in the field of machine learning but has rarely been applied in quantitative structure-activity relationship and… (More)

- Gabor Csanyi, Istvan Lepran, Timea Flesch, Gyula Telegdy, Gyula Szabo, Zsofia Mezei
- Pharmacological reports : PR
- 2007

It is not known whether the impairment of nitric oxide (NO)-dependent vasodilation of the aorta of diabetic rats is associated with any changes in the endothelial production of vasoactive prostanoids and endothelium-derived hyperpolarizing factor (EDHF). Therefore, we analyzed the contribution of NO, vasoactive prostanoids and EDHF to the decreased… (More)