Results 51 to 60 of about 152,514 (291)
Batteries &Supercaps, Volume 8, Issue 3, March 2025.A micro‐supercapacitor with electrodeposited iron oxyhydroxide (FeOOH) as the negative electrode and birnessite manganese oxide (MnO2) as the positive electrode achieves a 2 V working voltage, stable cycling in an aqueous electrolyte, and high energy and power densities of 21 μWh cm‐2 and 2.5 mW cm‐2 respectively.
Filipe Braga +6 more
wiley +1 more source
Generalized Tepper’s Identity and Its Application
Mathematics, 2020 The aim of this paper is to study the Tepper identity, which is very important in number theory and combinatorial analysis. Using generating functions and compositions of generating functions, we derive many identities and relations associated with the ...
Dmitry Kruchinin +2 more
doaj +1 more source
Boolean complexes for Ferrers graphs [PDF]
, 2010 In this paper we provide an explicit formula for calculating the boolean number of a Ferrers graph. By previous work of the last two authors, this determines the homotopy type of the boolean complex of the graph. Specializing to staircase shapes, we show
Claesson, Anders +3 more
core +2 more sources
British Educational Research Journal, EarlyView.Abstract Drawing on teacher agency as a conceptual framework, we explored the extent to which school teachers in secondary schools in England achieve agency in relation to teaching climate change and sustainability. This research provides a novel approach to understanding the relational and emergent qualities of teacher agency by bringing together ...
Nicola Walshe, Elizabeth A. C. Rushton
wiley +1 more source
Closed formulas for special bell polynomials by Stirling numbers and associate Stirling numbers
Publications de l'Institut Mathematique, 2020 We derive two explicit formulas for two sequences of special values of the Bell polynomials of the second kind in terms of associate Stirling numbers of the second kind, give an explicit formula for associate Stirling numbers of the second kind in terms of the Stirling numbers of the second kind, and, consequently, present two explicit ...
Qi, Feng, Lim, Dongkyu
openaire +3 more sources
Block patterns in Stirling permutations [PDF]
, 2014 We introduce and study a new notion of patterns in Stirling and $k$-Stirling permutations, which we call block patterns. We prove a general result which allows us to compute generating functions for the occurrences of various block patterns in terms of ...
Remmel, Jeffrey B. +1 more
core
An Eco‐Social Lens on Voice for Undervoiced and Unvoiced Stakeholders
Business Strategy and the Environment, EarlyView.ABSTRACT This conceptual paper argues it is important from an ecological–social (eco‐social) whole system point of view for businesses and policymakers to take the interests of and impacts on unvoiced and undervoiced [un(der)voiced] stakeholders into consideration for both strategic and justice reasons.
Sandra Waddock
wiley +1 more source
IET Renewable Power Generation, 2023 At present, commercial geothermal power stations are mainly high‐temperature and medium‐temperature geothermal energy, while the large number of low‐temperature geothermal energy resources are rarely used for power generation applications.
Tan Zhili +3 more
doaj +1 more source
Negative $q$-Stirling numbers [PDF]
Discrete Mathematics & Theoretical Computer Science, 2015 The notion of the negative $q$-binomial was recently introduced by Fu, Reiner, Stanton and Thiem. Mirroring the negative $q$-binomial, we show the classical $q$ -Stirling numbers of the second kind can be expressed as a pair of statistics on a subset of restricted growth words. The resulting expressions are polynomials in $q$ and $(1+q)$.
Cai, Yue, Readdy, Margaret
openaire +4 more sources
Combinatorics and Boson normal ordering: A gentle introduction
, 2007 We discuss a general combinatorial framework for operator ordering problems by applying it to the normal ordering of the powers and exponential of the boson number operator.
A. Horzela +12 more
core +1 more source