Results 31 to 40 of about 388,744 (284)

Enclosure of La Tène Graves in the Territory of Slovakia [PDF]

open access: yesStudia Hercynia, 2020
The aim of this article is to give a basic analysis of graves enclosed by rectangular and circular ditches documented at La Tène cemeteries from the territory of today’s Slovakia.
Dominik Repka
doaj  

Periodicity in rectangular arrays [PDF]

open access: yesInformation Processing Letters, 2017
We discuss several two-dimensional generalizations of the familiar Lyndon-Schutzenberger periodicity theorem for words. We consider the notion of primitive array (as one that cannot be expressed as the repetition of smaller arrays). We count the number of m x n arrays that are primitive.
Guilhem Gamard   +3 more
openaire   +5 more sources

Spondylosium rectangulare var. rectangulare West & West var. rectangulare

open access: yes, 2020
Spondylosium rectangulare (Wolle) West & West var. rectangulare, Transactions of the Linnean Society, London: ser. 2, 5(5): 231, pl. 12, fig. 13-14. 1896. Sphaerozosma rectangulare Wolle, Desmids of the United States. 31, pl. 49, fig. 9. 1884. (Fig. 22) Cell 2.7 times broader than long, 20 × 55-92 µm, and 14- 24 μm broad at the isthmus.
Araújo, Camila Barbosa de   +3 more
openaire   +2 more sources

FRICTIONAL BEHAVIOUR OF RUBBER FLOORING MAT FITTED BY RECTANGULAR TREADS [PDF]

open access: yesJournal of the Egyptian Society of Tribology, 2014
There is an increasing demand to reduce the risk of slipping and enhance walking safety in indoors and workplaces. Wet floors are the main source of slip accidents.
M. A. Ramadan   +2 more
doaj   +1 more source

Numerical Investigation of Gas-Liquid Two-Phase Flow inside PEMFC Gas Channels with Rectangular and Trapezoidal Cross Sections

open access: yesEnergies, 2018
The dynamics of liquid water in the gas channels with rectangular sections (REC), trapezoidal sections with open angles of 60 degrees (T60), and trapezoidal sections with open angles of 72 degrees (T72) are numerically investigated via the volume of ...
Jin Hyun Kim, Woo Tae Kim
doaj   +1 more source

Effects of transverse air flow on mass loss rate of alcohol pool fires in an inclined wind tunnel

open access: yesJournal of Civil Engineering and Management, 2015
In order to study the effects of inclined wind direction on combustion characteristics of alcohol pool fires, an inclinable wind tunnel was developed and used for providing venting wind with different directions.
Changfa Tao, Xishi Wang, Xiaonan Zhang
doaj   +1 more source

Rectangular R-Transform as the Limit of Rectangular Spherical Integrals [PDF]

open access: yesJournal of Theoretical Probability, 2011
In this paper, we connect rectangular free probability theory and spherical integrals. In this way, we prove the analogue, for rectangular or square non-Hermitian matrices, of a result that Guionnet and Maida proved for Hermitian matrices in 2005. More specifically, we study the limit, as $n,m$ tend to infinity, of the logarithm (divided by $n$) of the
openaire   +2 more sources

Some New Aspects in the Intuitionistic Fuzzy and Neutrosophic Fixed Point Theory

open access: yesJournal of Function Spaces, 2022
In this manuscript, we use the concepts of continuous t-norms and continuous t-conorms to introduce some definitions, in which intuitionistic fuzzy rectangular metric spaces, intuitionistic fuzzy rectangular metric-like spaces, intuitionistic fuzzy ...
Aftab Hussain   +2 more
doaj   +1 more source

Sub-Rectangular Tunnel Behavior under Seismic Loading

open access: yesApplied Sciences, 2021
Circular and rectangular tunnel shapes are usually chosen when excavating at shallow depths in urban areas. However, special-shaped tunnels such as sub-rectangular tunnels have recently been used to overcome some drawbacks of circular and rectangular ...
Van Vi Pham, Ngoc Anh Do, Daniel Dias
doaj   +1 more source

Rectangular Dissections of a Square

open access: yesEuropean Journal of Combinatorics, 1988
We investigate the problem that how many different ways one can dissect the unit-square into rectangles with prescribed areas \(w_ 1,...,w_ n\). One of our answers is the following: If \(w_ 1,...,w_{n-1}\) are algebraically independent, then the number in question asymptotically equals to \(32(1+o(1))/\pi \sqrt{3}(n!8^ n/n^ 4)\).
Endre Boros, Zoltán Füredi
openaire   +3 more sources

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