Results 21 to 30 of about 2,041,584 (301)

Optical trapping with a perfect vortex beam [PDF]

open access: yes, 2014
The authors would like to thank the UK Engineering and Physical Sciences Research Council (EPSRC) for funding.Vortex beams with different topological charge usually have different profiles and radii of peak intensity.
Arita, Yoshihiko   +9 more
core   +1 more source

A note on the Smarandache inversion sequence [PDF]

open access: yes, 2007
In a recent paper, Muneer introduced the Smarandache inversion sequence. In this paper, we study some properties of the Smarandache inversion sequence. Moreover, we find the necessary and su±cient condition such that [SI(n)]2 + [SI(n + 1)]2 is a perfect
Majumdar, A.A.K.
core   +1 more source

perfectphyloR: An R package for reconstructing perfect phylogenies

open access: yesBMC Bioinformatics, 2019
Background A perfect phylogeny is a rooted binary tree that recursively partitions sequences. The nested partitions of a perfect phylogeny provide insight into the pattern of ancestry of genetic sequence data.
Charith B. Karunarathna, Jinko Graham
doaj   +1 more source

KAJIAN DERET FIBONACCI DAN GOLDEN RATIO PADA LAGU BUNGAN SANDAT

open access: yesE-Jurnal Matematika, 2012
This study aims to analyze mathematically Bungan Sandat songs and arrange the elements in terms of the Fibonacci sequence and Golden Ratio. Then the ratio of the beauty of the song before and after arrangements were analyzed using the Wilcoxon test with ...
GEDE AGUS HENDRA YOGANGGA   +2 more
doaj   +1 more source

Binary sequence/array pairs via diference set pairs: A recursive approach [PDF]

open access: yesTransactions on Combinatorics, 2017
Binary array pairs with optimal/ideal correlation values and their algebraic counterparts textquotedblleft difference set pairstextquotedblright;(DSPs) in abelian groups are studied‎. ‎In addition to generalizing known 1-dimensional (sequences) examples‎,
K. T. Arasu, Anika Goyal, Abhishek Puri
doaj   +1 more source

The Smarandache Perfect Numbers [PDF]

open access: yes, 2006
In this paper we prove that 12 is the only Smarandache perfect ...
Maohua Le, Maohua, Le
core   +1 more source

Langford sequences: perfect and hooked

open access: yesDiscrete Mathematics, 1983
AbstractA sequence {d, d+1,…, d+m−1} of m consecutive positive integers is said to be perfect if the integers {1, 2,…, 2m} can be arranged in disjoint pairs {(ai, bi): 1⩽i⩽m} so that {bi−ai: 1⩽i⩽m}={d,d+1,…,d+m−1}. A sequence is hooked if the set {1, 2,…, 2m−1 2m+1} can be arranged in pairs to satisfy the same condition. Well known necessary conditions
openaire   +2 more sources

Research of perfect punctured binary sequence pair in LCZ/ZCZ

open access: yesTongxin xuebao, 2006
Perfect punctured binary sequence pair was used in LCZ/ZCZ.The theory of LCZ/ZCZ sequence pair sets was defined,and three new methods for constructing LCZ/ZCZ sequence pair sets were presented: ZCZ sequence pair sets based on odd length perfect punctured
XU Lei, JIANG Ting, ZHOU Zheng
doaj   +2 more sources

Comprehensive Characterization of Simple Sequence Repeats in Eggplant (Solanum melongena L.) Genome and Construction of a Web Resource

open access: yesFrontiers in Plant Science, 2018
We have characterized the simple sequence repeat (SSR) markers of the eggplant (Solanum melongena) using a recent high quality sequence of its whole genome.
Ezio Portis   +7 more
doaj   +1 more source

A Sequence of Cohen–Macaulay Standard Graded Domains Whose h-Vectors Have Exponentially Deep Flaws

open access: yesAppliedMath, 2023
Let K be a field. In this paper, we construct a sequence of Cohen–Macaulay standard graded K-domains whose h-vectors are non-flawless and have exponentially deep flaws.
Mitsuhiro Miyazaki
doaj   +1 more source

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