Results 81 to 90 of about 321,907 (356)
Application of Catalan Numbers and the Lattice Path Combinatorial Problem in Cryptography
Acta Polytechnica Hungarica, 2018 : This paper analyzes the properties of Catalan numbers and their relation to the Lattice Path combinatorial problem in cryptography. Specifically, analyzes the application of the appropriate combinatorial problem based on Catalan-key in encryption and ...
M. Saracevic +2 more
semanticscholar +1 more source
Harmonic numbers, Catalan's triangle and mesh patterns
, 2012 The notion of a mesh pattern was introduced recently, but it has already proved to be a useful tool for description purposes related to sets of permutations. In this paper we study eight mesh patterns of small lengths. In particular, we link avoidance of
Kitaev, Sergey, Liese, Jeffrey
core +1 more source
Promoting Electrochemical Reactions with Dual‐Atom Catalysts for High‐Rate Lithium–Sulfur Batteries
Advanced Materials, EarlyView.A scalable strategy for synthesizing transition metal–bismuth atomic pairs on carbon nitride to accelerate sulfur redox reactions in lithium–sulfur batteries is presented. Nickel‐bismuth and cobatl‐bismuth catalysts improve rate performance by promoting direct electrochemical transitions and rapid Li2S nucleation, minimizing sulfur loss, and enhancing ...
Jing Yu +19 more
wiley +1 more source
As unidades fraseolóxicas no castelán de Cataluña. Revisión dunha norma constituínte a partir da perspectiva histórica [PDF]
Cadernos de Fraseoloxía Galega, 2009 A constitución dun repertorio autónomo e estable de expresións fixas usado en particular na comunidade lingüística de Cataluña é un aspecto pouco investigado.
Jenny Brumme
doaj
La dimensió de les llengües a la Wikipedia i la seua relació amb els elements socials
Digithum, 2011 Hi ha un aparent contrasentit en el fet que el català tinga a la Wikipedia un nombre d’articles similar al xinès. Una comunitat que no arriba a deu milions de catalanoparlants, llargament minoritzada al propi territori, pot arribar a tenir una capacitat ...
Borja Pellejero +2 more
doaj +1 more source
Canonical characters on quasi-symmetric functions and bivariate Catalan numbers [PDF]
, 2004 Every character on a graded connected Hopf algebra decomposes uniquely as a product of an even character and an odd character (Aguiar, Bergeron, and Sottile, math.CO/0310016).
Aguiar, Marcelo, Hsiao, Samuel K.
core +5 more sources
Co‐Sensitized Solar Cell Achieves 13.7% Efficiency with Bis‐Hexylthiophene Dyes
Advanced Science, EarlyView.The authors demonstrate that the longer excited state lifetime dye in combination with a copper electrolyte produces a high photovoltage of 1.22 V, owing to retarded interfacial charge recombination. The co‐sensitized solar cell achieves efficiencies of 13.7% under full sunlight and 29.7% under LED light.
Heng Wu +5 more
wiley +1 more source
Osobnost překladatele Jana Schejbala a jeho vliv na recepci katalánsky psané literatury u nás
Acta Universitatis Carolinae: Philologica, 2019 The article introduces the most important Czech Catalanist, who has been introducing Catalan literature to Czech audiences for nearly half of a century.
Michal Brabec
doaj +1 more source
Advanced Science, EarlyView.The first low‐temperature interfacial evaporation air sterilization technology is presented. It is based on a superhydrophilic ferromagnetic micro/nano‐structured stainless‐steel filter, showing ultra‐efficient inductive heating. This technology has demonstrated over 99.6% of SARS‐CoV‐2 and RSV elimination at temperatures in the 60–80 °C range.
Arnau Fons +15 more
wiley +1 more source
Discrete Mathematics, 2008 AbstractRaney’s lemma is often used in a counting argument to prove the formula for (generalized) Catalan numbers. It ensures the existence of “good” cyclic shifts of certain sequences, i.e. cyclic shifts for which all partial sums are positive.We introduce a simple algorithm that finds these cyclic shifts and also those with a slightly weaker property.
openaire +2 more sources