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Bayesian Tractography Using Geometric Shape Priors [PDF]
Frontiers in Neuroscience, 2017 The problem of estimating neuronal fiber tracts connecting different brain regions is important for various types of brain studies, including understanding brain functionality and diagnosing cognitive impairments.
Xiaoming Dong +3 more
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Geometric morphometrics of rodent sperm head shape. [PDF]
PLoS ONE, 2013 Mammalian spermatozoa, particularly those of rodent species, are extremely complex cells and differ greatly in form and dimensions. Thus, characterization of sperm size and, particularly, sperm shape represents a major challenge. No consensus exists on a
María Varea Sánchez +2 more
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Nihon Kikai Gakkai ronbunshu, 2021 The bent-axis-type axial piston pump is a type of positive-displacement machinery that is better equipped to solve environmental problems than the swash-plate-type piston pump.
Kazuhiko TANAKA +4 more
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Monotone Simultaneous Paths Embeddings in $\mathbb{R}^d$ [PDF]
Discrete Mathematics & Theoretical Computer Science, 2018 We study the following problem: Given $k$ paths that share the same vertex set, is there a simultaneous geometric embedding of these paths such that each individual drawing is monotone in some direction?
David Bremner +8 more
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Shape sensitive geometric monitoring [PDF]
Proceedings of the twenty-seventh ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems, 2008 A fundamental problem in distributed computation is the distributed evaluation of functions. The goal is to determine the value of a function over a set of distributed inputs, in a communication efficient manner. Specifically, we assume that each node holds a time varying input vector, and we are interested in determining, at any given time, whether ...
Izchak Sharfman +2 more
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Flexural Behavior of Sandwich Structures Consisting of Corrugated Composite Core with Different Geometries [PDF]
علوم و تکنولوژی پلیمر, 2015 An Experimental and numerical study on the flexural behavior of new types of sandwich structures with glass-epoxy skins and a combinatorial core consisting of PVC foam and a corrugated composite was performed.
Rahmat Allah Rahmani +2 more
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Geometric Aspects of Shape Optimization
The Journal of Geometric Analysis, 2023 AbstractWe present a review of known results in shape optimization from the point of view of Geometric Analysis. This paper is devoted to the mathematical aspects of the shape optimization theory. We focus on the theory of gradient flows of objective functions and their regularizations.
Pavel I. Plotnikov, Jan Sokolowski
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Low-Complexity Geometric Shaping [PDF]
Journal of Lightwave Technology, 2021 Approaching Shannon's capacity via geometric shaping has usually been regarded as challenging due to modulation and demodulation complexity, requiring look-up tables to store the constellation points and constellation bit labeling. To overcome these challenges, in this paper, we study lattice-based geometrically shaped modulation formats in ...
Ali Mirani, Erik Agrell, Magnus Karlsson
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Lattice-based geometric shaping [PDF]
2020 European Conference on Optical Communications (ECOC), 2020 Geometrically shaped multidimensional constellations with more than 1028 points are simulated using fast and low-complexity algorithms without any look-up tables to store the constellation points. At the same symbol error rate, more than 78% and 114% reach improvement are demonstrated compared with 4- and 16-QAM, respectively.
Ali Mirani, Erik Agrell, Magnus Karlsson
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Asymmetrical interference effects between two-dimensional geometric shapes and their corresponding shape words. [PDF]
PLoS ONE, 2014 Nativists have postulated fundamental geometric knowledge that predates linguistic and symbolic thought. Central to these claims is the proposal for an isolated cognitive system dedicated to processing geometric information.
Bradley R Sturz +2 more
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