Results 51 to 60 of about 3,264,899 (354)

Contexts for ‘pure’ mathematics: a framework for analysing A-level mathematics papers

open access: yes, 2008
The use of context in mathematics test items is now accepted practice in many forms of national assessment in the UK. Yet research suggests that such use of context is not straightforward and that children may apply a variety of interpretations to ...
Jones, Keith, Little, Chris
core   +1 more source

Two-Player Tower of Hanoi [PDF]

open access: yes, 2017
The Tower of Hanoi game is a classical puzzle in recreational mathematics (Lucas 1883) which also has a strong record in pure mathematics. In a borderland between these two areas we find the characterization of the minimal number of moves, which is $2^n ...
Chappelon, Jonathan   +2 more
core   +1 more source

Structural dynamics of the plant hormone receptor ETR1 in a native‐like membrane environment

open access: yesFEBS Letters, EarlyView.
The present study unveils the structural and signaling dynamics of ETR1, a key plant ethylene receptor. Using an optimized nanodisc system and solution NMR, we captured full‐length ETR1 in a native‐like membrane environment. Our findings reveal dynamic domain uncoupling and Cu(I)‐induced rigidification, providing the first evidence of metal‐triggered ...
Moritz Lemke   +2 more
wiley   +1 more source

Principal Intuitionistic Fuzzy Ideals and Filters on a Lattice

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2020
In this paper, we generalize the notion of principal ideal (resp. filter) on a lattice to the setting of intuitionistic fuzzy sets and investigate their various characterizations and properties.
Boudaoud Sarra   +2 more
doaj   +1 more source

h-Almost Ricci solitons with concurrent potential fields

open access: yesAIMS Mathematics, 2020
In this paper, we will focus our attention on the structure of h-almost Ricci solitons. A complete classification of h-almost Ricci solitons with concurrent potential vector fields is given.
Hamed Faraji   +2 more
doaj   +1 more source

On Edge H-Irregularity Strength of Hexagonal and Octagonal Grid Graphs

open access: yesJournal of Mathematics, 2022
The edge H-irregularity strength, ehsΓ,H, of a graph Γ is the smallest integer k, such that Γ has an H-irregular edge k-labeling. In this study, we compute the exact value of edge H-irregularity strength of hexagonal and octagonal grid graphs.
Muhammad Ibrahim   +3 more
doaj   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

open access: yesAdvanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat   +6 more
wiley   +1 more source

Agent based cooperative theory formation in pure mathematics [PDF]

open access: yes, 2000
The HR program, Colton et al. (1999), performs theory formation in domains of pure mathematics. Given only minimal information about a domain, it invents concepts, make conjectures, proves theorems and finds counterexamples to false conjectures.
Bundy, Alan, Colton, Simon, Walsh, Toby
core   +1 more source

Present trends in pure mathematics

open access: yesAdvances in Mathematics, 1978
Vgl. die Besprechung des engl. Originals aus Advances Math. 27, 235-255 (1978) im Zbl 0382.00009.
openaire   +4 more sources

A Simulative Approach for the Prediction of Mesoscale Residual Stress Fields in Solution‐Strengthened Ferritic Ductile Iron

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents a 3D representative volume element‐based simulation approach to predict mesoscopic residual stress and strain fields in silicon solid solution‐strengthened ductile cast iron. By modeling phase transformation kinetics with an enhanced Johnson–Mehl–Avrami–Kolmogorov model, the effects of varying cooling rates on residual stresses are ...
Lutz Horbach   +6 more
wiley   +1 more source

Home - About - Disclaimer - Privacy