Results 91 to 100 of about 752,122 (314)

On the Rigidity and Mechanical Behavior of Triply Periodic Minimal Surfaces‐Based Lattices: Insights from Extensive Experiments and Simulations

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines the mechanical properties of triply periodic minimal surfaces (TPMS)‐based lattices, analyzing 36 architectures in elastic and plastic regimes. It evaluates the applicability of beam‐based scaling laws to TPMS lattices. Rigidity arises from the alignment of members with the load direction and solid regions preventing rotation.
Lucía Doyle   +2 more
wiley   +1 more source

At-risk student teachers’ attitudes and aspirations as learners and teachers of mathematics

open access: yesSouth African Journal of Childhood Education, 2016
This study explored foundation phase first year student teachers’ perceptions about mathematics. The focus on their attitudes towards mathematics in two roles – (1) as learners of mathematics, based on their prior experiences at school and (2) as ...
Trevor Moodley   +2 more
doaj   +1 more source

Popularizing mathematics: from eight to infinity [PDF]

open access: yesProceedings of the ICM, Beijing 2002, vol. 3, 885--896, 2003
It is rare to succeed in getting mathematics into ordinary conversation without meeting all kinds of reservations. In order to raise public awareness of mathematics effectively, it is necessary to modify such attitudes. In this paper, we point to some possible topics for general mathematical conversation.
arxiv  

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

Preface to the Special Issue on “Recent Advances in Business and Industry: Mathematical Analysis, Sustainability Assessment Instruments and Methods”

open access: yesMathematics
Recently, it has become pivotal to include mathematics in all domains and crucial to offer a better and more in-depth understanding of mathematics in the forms in which it has been associated with all fields [...]
Cristina Raluca Gh. Popescu
doaj   +1 more source

The Role of Approximate Number System in Different Mathematics Skills Across Grades

open access: yesFrontiers in Psychology, 2018
Although approximate number system (ANS) has been found to predict mathematics ability, it remains unclear if both aspects of ANS (symbolic and non-symbolic estimation) contribute equally well to mathematics performance and if their contribution varies ...
Dan Cai   +4 more
doaj   +1 more source

Building the Signature of Set Theory Using the MathSem Program [PDF]

open access: yesarXiv, 2016
Knowledge representation is a popular research field in IT. As mathematical knowledge is most formalized, its representation is important and interesting. Mathematical knowledge consists of various mathematical theories. In this paper we consider a deductive system that derives mathematical notions, axioms and theorems.
arxiv  

Geometry‐Based Scan Curve Analysis: Rapid Method for the Evaluation of Scan Strategies in Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents rapid evaluation methods for scan strategies in powder bed fusion (PBF) of polymers with a NIR laser as an example for its application. It uses line buffer‐based calculations and point density fields to predict the performance of four different scan strategies. The methods show promising results in laser‐based PBF of polymer samples,
Simon Leupold   +9 more
wiley   +1 more source

Low‐Velocity Penetration Impact Behavior of Triply Periodic Minimal Surface Strut‐Based Lattices

open access: yesAdvanced Engineering Materials, EarlyView.
Triply periodic minimal surface (TPMS)‐based lattices are gaining attention for their multifunctional properties in applications as aeronautics and automotive, which involve low‐velocity impact loading. This work evaluates the low‐velocity penetration impact behavior of five distinct TPMS architectures.
Lucía Doyle   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy