Results 11 to 20 of about 13,311 (201)

Interactive inspection of complex multi-object industrial assemblies [PDF]

open access: yes, 2016
The final publication is available at Springer via http://dx.doi.org/10.1016/j.cad.2016.06.005The use of virtual prototypes and digital models containing thousands of individual objects is commonplace in complex industrial applications like the ...
Argudo Medrano, Óscar   +6 more
core   +2 more sources

The Dynamics of Twisted Tent Maps [PDF]

open access: yes, 2012
This paper is a study of the dynamics of a new family of maps from the complex plane to itself, which we call twisted tent maps. A twisted tent map is a complex generalization of a real tent map.
Chamblee, Stephen Joseph
core   +2 more sources

Relative Stability and Local Curvature Analysis in Carbon Nanotori [PDF]

open access: yes, 2015
We introduce a concise formalism to characterize nanometer-sized tori based on carbon nanotubes and to determine their stability by combining {\em ab initio} density functional calculations with a continuum elasticity theory approach that requires only ...
Chuang, Chern   +5 more
core   +2 more sources

Ropelength of tight polygonal knots

open access: yes, 2004
A physical interpretation of the rope simulated by the SONO algorithm is presented. Properties of the tight polygonal knots delivered by the algorithm are analyzed. An algorithm for bounding the ropelength of a smooth inscribed knot is shown. Two ways of
Eric   +3 more
core   +2 more sources

Log-Concavity of Centered Polygonal Figurate Number Sequences

open access: yesOALib, 2016
This paper investigates the log-concavity of the centered m-gonal figurate number sequences. The author proves that for m≥3, the sequence {Cn(m)}n≥1 of centered m-gonal figurate numbers is a log-concave.
openaire   +1 more source

Simple Wriggling is Hard unless You Are a Fat Hippo

open access: yes, 2010
We prove that it is NP-hard to decide whether two points in a polygonal domain with holes can be connected by a wire. This implies that finding any approximation to the shortest path for a long snake amidst polygonal obstacles is NP-hard. On the positive
A. Efrat   +10 more
core   +1 more source

Deconstructing Approximate Offsets [PDF]

open access: yes, 2011
We consider the offset-deconstruction problem: Given a polygonal shape Q with n vertices, can it be expressed, up to a tolerance \eps in Hausdorff distance, as the Minkowski sum of another polygonal shape P with a disk of fixed radius?
Berberich, Eric   +3 more
core   +2 more sources

From a few to many electrons in quantum dots under strong magnetic fields: Properties of rotating electron molecules with multiple rings

open access: yes, 2006
Using the method of breaking of circular symmetry and of subsequent symmetry restoration via projection techiques, we present calculations for the ground-state energies and excitation spectra of N-electron parabolic quantum dots in strong magnetic fields
A. F. Andreev   +4 more
core   +1 more source

Integral solutions of the heptic equation with five unknowns [PDF]

open access: yes, 2015
The non-homogeneous Diophantine equation of degree seven with five variables represented by is analyzed for its non-zero distinct integer solutions. A few interesting relation between the solutions and special numbers namely Polygonal numbers, Pyramidal
Gopalan, M. A. (M)   +2 more
core  

Multi‐omics and low‐input proteomics profiling reveals dynamic regulation driving pluripotency initiation in early mouse embryos

open access: yesFEBS Open Bio, EarlyView.
Mouse pre‐implantation development involves a transition from totipotency to pluripotency. Integrating transcriptomics, epigenetic profiling, low‐input proteomics and functional assays, we show that eight‐cell embryos retain residual totipotency features, whereas cytoskeletal remodeling regulated by the ubiquitin‐proteasome system drives progression ...
Wanqiong Li   +8 more
wiley   +1 more source

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