Results 21 to 30 of about 174,404 (306)

A New S-Shape Specimen for Studying the Dynamic Shear Behavior of Metals

open access: yesMetals, 2019
A new S-shaped specimen geometry is developed in this study to investigate the shear behavior of materials under dynamic shear condition. Traditionally, hat-shaped geometry is used to study the dynamic shear of materials by a conventional split Hopkinson
Ali Arab   +3 more
doaj   +1 more source

Differential Geometry of Identity Maps: A Survey

open access: yes, 2020
An identity map idM:M→M is a bijective map from a manifold M onto itself which carries each point of M return to the same point. To study the differential geometry of an identity map idM:M→M, we usually assume that the domain M and the range M ...
Bang-Yen Chen
core   +1 more source

h-Almost Ricci–Yamabe Solitons in Paracontact Geometry

open access: yes, 2022
In this article, we classify h-almost Ricci–Yamabe solitons in paracontact geometry. In particular, we characterize para-Kenmotsu manifolds satisfying h-almost Ricci–Yamabe solitons and 3-dimensional para-Kenmotsu manifolds obeying h-almost ...
Uday Chand De   +2 more
core   +1 more source

DG in DG (Digital grammar in descriptive geometry)

open access: yesEGA, 2019
Nowadays the inclusion of CAD software is well-established in Geometry teaching within the field of Architectural Graphic Expression. In this environment, we suggest the introduction of visual programming software tools which would allow us to focus on ...
Ana González Uriel   +2 more
doaj   +1 more source

The value of learning geometry with ICT: lessons from innovative educational research

open access: yes, 2011
This chapter reviews research on using ICT to support the teaching of geometry. The research selected focuses on learners’ use of interactive geometry software, the design of suitable teaching and learning activities, and the nature of relevant teacher ...
Jones, Keith
core   +1 more source

Quantum geometry, logic and probability

open access: yesZagadnienia Filozoficzne w Nauce, 2020
Quantum geometry on a discrete set means a directed graph with a weight associated to each arrow defining the quantum metric. However, these ‘lattice spacing’ weights do not have to be independent of the direction of the arrow.
Shahn Majid
doaj  

Disc geometry measurement methods affect reported compressive mechanics by up to 65%

open access: yesJOR Spine, 2022
Mechanical testing is a valuable tool for assessing intervertebral disc health, but the wide range of testing protocols makes it difficult to compare results from different studies.
Shiyin Lim   +4 more
doaj   +1 more source

The hybrid teaching model: a proposal continuing education for first grade teachers

open access: yesTangram, 2020
This paper presents part of the results of a project that aimed to investigate whether strategies  used  for continuing  education  of  first  grade  teachers,  using  a  Hybrid  Teaching model,“Flipped Classroom” could be a favorable instrument for the ...
Celina Aparecida Almeida Pereira Abar   +2 more
doaj   +1 more source

Mathematics Book Innovation Based on Digital Literature

open access: yesJournal of Education, Health and Sport, 2022
The development of the era that makes the use of technology lively. Especially during the Covid-19 pandemic. All learning activities in schools are carried out online by utilizing various technologies.
Suci Frisnoiry   +2 more
doaj   +1 more source

On the Geometry in the Large of Einstein-like Manifolds

open access: yes, 2022
Gray has presented the invariant orthogonal irreducible decomposition of the space of all covariant tensors of rank 3, obeying only the identities of the gradient of the Ricci tensor.
Lenka Rýparová   +3 more
core   +1 more source

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