Results 51 to 60 of about 62,319 (281)

Octavinyl polyhedral oligomeric silsesquioxane on tailoring the DC electrical characteristics of polypropylene

open access: yesHigh Voltage, 2022
This work reports the effect of octavinyl polyhedral oligomeric silsesquioxane (OvPOSS) on tuning the electrical performance of polypropylene (PP). OvPOSS with different content are introduced into PP using the solution method.
Xiaosi Lin   +4 more
doaj   +1 more source

Some isomorphically polyhedral orlicz sequence spaces [PDF]

open access: yesIsrael Journal of Mathematics, 1994
A Banach space is polyhedral if the unit ball of each of its finite dimensional subspaces is a polyhedron. It is known that a polyhedral Banach space has a separable dual and is $c_0$-saturated, i.e., each closed infinite dimensional subspace contains an isomorph of $c_0$.
openaire   +2 more sources

Almost Locally Polyhedral Curves in Euclidean n-Space [PDF]

open access: yesTransactions of the American Mathematical Society, 1963
Fox and Artin [2] have given examples of wild arcs and curves in E3 which fail to be locally polyhedral at only one or two points. It is shown in this paper that no such "simple" examples of wild curves are to be expected in dimensions higher than three.
Cantrell, J. C., Edwards, C. H. jun.
openaire   +2 more sources

Cyclohexane plastic phase I: single-crystal diffraction images and new structural model

open access: yesIUCrData, 2023
The plastic phase of cyclohexane (polymorph I) was studied by Kahn and co-workers, without achieving a satisfactory determination of the atomic coordinates [Kahn et al. (1973). Acta Cryst. B29, 131–138].
Sylvain Bernès, Sebastian Camargo
doaj   +1 more source

Intersection Properties of Balls in Banach Spaces

open access: yesJournal of Function Spaces and Applications, 2013
We introduce a weaker notion of central subspace called almost central subspace, and we study Banach spaces that belong to the class (GC), introduced by Veselý (1997). In particular, we prove that if is an almost central subspace of a Banach space such
C. R. Jayanarayanan
doaj   +1 more source

Parallel tiled Nussinov RNA folding loop nest generated using both dependence graph transitive closure and loop skewing

open access: yesBMC Bioinformatics, 2017
Background RNA secondary structure prediction is a compute intensive task that lies at the core of several search algorithms in bioinformatics. Fortunately, the RNA folding approaches, such as the Nussinov base pair maximization, involve mathematical ...
Marek Palkowski, Wlodzimierz Bielecki
doaj   +1 more source

Predictive modeling in a polyhedral optimization space [PDF]

open access: yesInternational Symposium on Code Generation and Optimization (CGO 2011), 2011
It has been shown that the right set of polyhedral optimizations can make a significant difference in the running time of a program. However, the number of alternatives for a program transformed with polyhedral optimizations can be enormous. Thus, it is often impossible to iterate over a significant fraction of the entire space of polyhedral ...
Park, Eunjung   +4 more
openaire   +2 more sources

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

open access: yesAdvanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger   +11 more
wiley   +1 more source

Novel structures for optimal space partitions

open access: yesNew Journal of Physics, 2016
Partitioning space into polyhedra with a minimum total surface area is a fundamental question in science and mathematics. In 1887, Lord Kelvin conjectured that the optimal partition of space is obtained with a 14-faced space-filling polyhedron, called ...
E Opsomer, N Vandewalle
doaj   +1 more source

Certified polyhedral decompositions of collision-free configuration space

open access: yesThe International Journal of Robotics Research, 2023
Understanding the geometry of collision-free configuration space (C-free) in the presence of Cartesian-space obstacles is an essential ingredient for collision-free motion planning. While it is possible to check for collisions at a point using standard algorithms, to date no practical method exists for computing C-free regions
Hongkai Dai   +4 more
openaire   +2 more sources

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