Results 31 to 40 of about 2,674,342 (383)
An application of Groebner bases to planarity of intersection of surfaces [PDF]
, 2009 In this paper we use Groebner bases theory in order to determine planarity of intersections of two algebraic surfaces in ${\bf R}^3$. We specially considered plane sections of certain type of conoid which has a cubic egg curve as one of the directrices ...
Malesevic, Branko, Obradovic, Marija
core +2 more sources
A 3D Descriptive Geometry Problem-Solving Methodology Using CAD and Orthographic Projection
SymmetryIn solving descriptive geometry (DG) problems, board (i.e., hand drawing) methods are frequently used, despite this discipline is still very important to enhance spatial vision.
E. G. Ravé, F. J. Jiménez-Hornero
semanticscholar +1 more source
Review of research in feature-based design [PDF]
, 1993 Research in feature-based design is reviewed. Feature-based design is regarded as a key factor towards CAD/CAPP integration from a process planning point of view.
Houten, F.J.A.M. van +2 more
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Cloud-Based Collaborative 3D Modeling to Train Engineers for the Industry 4.0 [PDF]
, 2019 In the present study, Autodesk Fusion 360 software (which includes the A360 environment) is used to train engineering students for the demands of the industry 4.0.
de la Torre Cantero, Jorge +3 more
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Greedy Search for Descriptive Spatial Face Features
, 2017 Facial expression recognition methods use a combination of geometric and appearance-based features. Spatial features are derived from displacements of facial landmarks, and carry geometric information.
Benligiray, Burak +2 more
core +1 more source
A stepwise emergence of evolution in the RNA world
FEBS Letters, EarlyView.How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley +1 more source
The Concept of Culture in Critical Mathematics Education [PDF]
, 2019 © Springer International Publishing AG, part of Springer Nature 2018. This is a post-peer-review, pre-copyedit version of a chapter published in The Philosophy of Mathematics Education Today. The final authenticated version is available online at: http://
A Pais +17 more
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Descriptive Geometry and Spatial Ability-Correlation and Mutual Impact at Engineering Students
Tehnički Vjesnik, 2020 Spatial abilities are recognized as one of the main factors for success in technical (STEM) professions, especially in the field of architecture and civil engineering. Given that this kind of competence is not paid enough attention to in the early stages
Maja Ilić +2 more
semanticscholar +1 more source