Results 81 to 90 of about 913,934 (310)
Pesquimat, 2014 In the present work, determined the most important factors in the perception of the quality of teaching from the perspective of student satisfaction of the Faculty of Mathematics at the National University of San Marcos, using factor analysis (Johnson y ...
Olga Solano Dávila +7 more
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Asymptotic Results on the Spectral Radius and the Diameter of Graphs [PDF]
2000 Mathematics Subject Classification: 05C50, 05E99;graphs;spectral radius;diameter;limit points ...
Cioaba, S.M. +3 more
core +1 more source
Advanced 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
Journal of Educational Research in Mathematics, 2020 This study conducted historical and mathematical analyses of the composition of continuum and infinite division. Regarding the results of the historical analysis, first, it can be seen that mathematicians struggled with the problems related to Zeno’s ...
Seungju Baek, Younggi Choi
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Advanced Engineering Materials, EarlyView.What happens when 32 labs join forces to study nanoparticle‐modified powders? A data‐driven journey through laser powder bed fusion—now openly accessible for the entire additive manufacturing community—is studied. Laser powder bed fusion is a cornerstone technology for additive manufacturing (AM) of metals and polymers, yet challenges in achieving ...
Ihsan Murat Kuşoğlu +73 more
wiley +1 more source
Corona, mathematics, and the limits of democratic control
, 2020 Maturity and citizenship in a democracy require that laypersons are able to critically reflect on experts’ use of mathematics. Learning to critically reflect on the use of mathematics, including the learning of mathematics required to that end, have been repeatedly postulated as indispensable goals of compulsory education in mathematics.
Kollosche, David, Meyerhöfer, Wolfram
openaire +4 more sources
Advanced Engineering Materials, EarlyView.Controlling the size and distribution of dispersoids is essential for optimizing the performance of oxide‐dispersion‐strengthened steels. This study focuses on nanoparticle dispersion and agglomeration during laser additive manufacturing of Fe20Cr alloy reinforced with ZrO 2 nanoparticles. Utilizing multiphysics phase‐field simulations and nanoparticle
Somnath Bharech +6 more
wiley +1 more source
Introduction to Special Issue on Increasing Participation in Higher Education STEM Programs
Education Sciences, 2020 This special issue highlights the work of several higher education practitioner–scholars who describe their approaches to facilitating participation in STEM courses and programs.
Susan Staats, Amy Lee
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Advanced Engineering Materials, EarlyView.Additive manufacturing technologies like laser powder‐bed fusion offer great design freedom and individualization of products down to a batch size of one. However, parts fabricated with this technology suffer from poor quality. Acoustic assistance during the build process can minimize these drawbacks.
Oliver Maurer, Dirk Bähre
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DESIGN OF LEARNING MATERIALS ON LIMIT FUNCTION BASED MATHEMATICAL UNDERSTANDING
Infinity, 2018 In learning process, students are currently cannot be separated from learning difficulties, including the study material algebra limit function. It because the level of students' mathematical understanding regarding the material is still quite low.
Muchamad Subali Noto +2 more
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