scholarly journals On the non-Poissonian repetition pattern of FRB121102

2018 ◽  
Vol 475 (4) ◽  
pp. 5109-5115 ◽  
Author(s):  
Niels Oppermann ◽  
Hao-Ran Yu ◽  
Ue-Li Pen
Keyword(s):  
Repetition Pattern

Sudoku Ripeto

ICGA Journal ◽  
2021 ◽  
pp. 1-24
Author(s):  
Miguel G. Palomo
Keyword(s):  
Sufficient Conditions ◽  
Proper Subset ◽  
Repetition Pattern

We present a variant of Sudoku called Sudoku Ripeto. It seems to be the first to admit any combination of repeated symbols, and includes Sudoku as a proper subset. We present other Sudoku Ripeto families, each with a different repetition pattern. We define Sudoku Ripeto squares and puzzles, prove several solving rules that generalize those for Sudoku, and give sufficient conditions to flexibly solve puzzles with rules only, without search.

scholarly journals Lightweight Mesh File Format Using Repetition Pattern Encoding for Additive Manufacturing

2020 ◽  
Vol 129 ◽  
pp. 102914
Author(s):  
Benjamin Vaissier ◽  
Jean-Philippe Pernot ◽  
Laurent Chougrani ◽  
Philippe Véron
Keyword(s):  
Additive Manufacturing ◽  
Lightweight Mesh ◽  
File Format ◽  
Repetition Pattern ◽  
Pattern Encoding

Contribution to the taxonomy and biology of two Balkan endemic Isoperla Banks, 1906 (Plecoptera: Perlodidae) species

Zoosymposia ◽  
2016 ◽  
Vol 11 ◽  
pp. 73-88 ◽  
Author(s):  
DÁVID MURÁNYI ◽  
TIBOR KOVÁCS ◽  
KIRILL MÁRK ORCI
Keyword(s):  
Total Duration ◽  
First Record ◽  
Wide Distribution ◽  
Male Mating ◽  
New Information ◽  
New Localities ◽  
Apical Half ◽  
Repetition Pattern ◽  
High Elevations ◽  
First Time

We contribute new information on the taxonomy and biology of two recently described Balkan endemic stonefly species of the genus Isoperla Banks, 1906 (Plecoptera: Perlodidae). The hitherto unknown larva of Isoperla pesici Murányi, 2011 can be distinguished from related species on the basis of more laterally positioned abdominal stripes, and the long hairs on the apical half of the cerci. This species has a wide distribution in the Central Balkans, and we add six new localities, including the first record from Albania. It emerges from late spring to mid-summer, and occurs at low to moderately high altitudes. Isoperla pesici seems to be associated with springs, especially karst spring outlets, although it occurs in both small and large springs. The hitherto unknown larva of Isoperla citrina Murányi, 2011 is distinguished by its brown coloration with an indistinct pattern, quadrangular lacinia and lack of long hairs on the apical half of the cerci. The female lacks distinctive terminalia or egg characters and its habitus is similar to the male and sufficient to distinguish it from other known Balkan taxa. The male mating call is a sequence of beat-groups with a total duration of 3–6 s (at 22 °C); each group generally containing 3 beats, while the beat repetition pattern within beat groups is rather simple. This species is restricted to the high mountains of the western-Central Balkans, where we record four new localities, including the first record from Macedonia. It emerges from June to October, and is associated with very small creeks, lined with bushes at high elevations. Amongst the accompanying species, eleven are reported for the first time from Albania: (Brachyptera helenica Aubert, 1956, B. graeca Berthélemy, 1971, Leuctra bronislawi Sowa, 1970a, L. hirsuta Bogoecu & Tabacaru, 1960, L. hippopoides Kaçanski & Zwick, 1970, L. pseudosignifera Aubert, 1954, Protonemura hrabei Raušer, 1956, P. nitida (Pictet, 1836), Nemurella pictetii (Klapálek, 1900), Chloroperla russevi Braasch, 1969 and Siphonoperla neglecta (Rostock, 1881)), while one from Macedonia (Nemoura caligula Zwick, 1978) and Leuctra pseudohippopus Raušer, 1965 is reported from outside the Moesian ranges for the first time.

Rhythmic dimension in the echolocation click trains of sperm whales: a possible function of identification and communication

2000 ◽  
Vol 80 (1) ◽  
pp. 163-169 ◽  
Author(s):  
Michel André ◽  
Cees Kamminga
Keyword(s):  
Fourier Spectrum ◽  
Sperm Whale ◽  
Physeter Macrocephalus ◽  
Sperm Whales ◽  
Group Foraging ◽  
Time Pattern ◽  
Acoustic Signature ◽  
Resident Group ◽  
The Individual ◽  
Repetition Pattern

Fourier spectral analysis was used to highlight a rhythmic dimension of the click repetition pattern of the sperm whale (Physeter macrocephalus). Analysis of numerous series of regular clicks only showed occasionally the previously described codas used for communication. Out of a sample recording of vocalizing sperm whales, an apparent cacophony, belonging to a year-round resident group foraging a few miles off the coast of Gran Canaria, the individual click sequences of four animals have been unravelled by cross-correlating their time wave shapes.The Fourier spectrum, which yields the harmonic aspects of each isolated click sequence, shows a deterministic structure that appears as a strong modulating frequency. This shows that click production is not a random process and possibly characterizes, in fact, a signature of the animal. Here we introduce a new concept: this rhythmic modulation represents the acoustic signature of each individual sperm whale, which we have called RIME (rhythmic identity measurement). The RIME would allow a whale to distinguish its own echo time pattern from the background of other click trains during echolocation. The RIME appears to represent a new concept in communication strategies and might also be present in other-social-odontocete repertoires.

scholarly journals Phenotype, Genotype and Environment in Architecture Case Study: Traditional Malay House, West Borneo

2020 ◽  
Author(s):  
Indah Kartika Sari ◽  
Wiendu Nuryanti ◽  
Ikaputra Ikaputra
Keyword(s):  
Physical Environment ◽  
Spatial Organization ◽  
Cultural Patterns ◽  
Relational Models ◽  
Unique Site ◽  
Late Twentieth ◽  
Repetition Pattern ◽  
The Relationship ◽  
Late Twentieth Century

Phenotype variation is produced through a complex of interactions between genotype and environment. Phenotype, genotype, and environment are addresses the relationship between architecture and identity. The term genotype biology and phenotype have been adopted into architecture in the late twentieth century. Genotypes are abstract relational models that govern the arrangement of space, and the principle of organizing space and phenotypes is the real realization of genotypes in the physical environment. The genotype is a reflection that is not only about the spatial organization but also the nature of social and cultural patterns. Then this study purpose to an understanding of the connectedness variant phenotype from a genotype and environment. The repetition pattern being stable structure in variation phenotype uses as a database to finding an identity in architecture. The method used in this research was Levi Strauss's structuralism and multi-layer of a biological system. This research samples traditional Malay houses in West Borneo, Indonesia. These houses have a unique site and existing environment. The houses can be found mainly along the river. The results found from the phenotype, genotype, and environment have value and meaning as a traditional Malay house rule in West Borneo which was always handed down from generation to generation.

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