Results 111 to 120 of about 76,108 (299)

Constructing and storytelling: accommodating different play orientations in learning spatial thinking

open access: yesFrontiers in Education
Spatial ability is malleable and belongs in the preschool. For preschoolers, many analytical activities with one correct answer such as tangram have been developed.
Leonie Sonneveld   +2 more
doaj   +1 more source

Resistance Rapid Heating of Aluminum Coatings in an Extreme High Vacuum–Adequate Atmosphere for Hot Stamping

open access: yesAdvanced Engineering Materials, EarlyView.
The subject of this work is the development of a corrosion‐protective coating on steel sheets for form hardening. Rapid heating in an extreme high vacuum (XHV)‐adequate atmosphere is a useful method to prevent oxidation during alloying of 22MnB5 and aluminum to obtain a metallurgical bonding.
Lorenz Albracht   +5 more
wiley   +1 more source

Computer-Aided Conceptual Design Through TRIZ-based Manipulation of Topological Optimizations [PDF]

open access: yes, 2009
Organised by: Cranfield UniversityIn a recent project the authors proposed the adoption of Optimization Systems [1] as a bridging element between Computer-Aided Innovation (CAI) and PLM to identify geometrical contradictions [2], a particular case of ...
Cascini, G.   +3 more
core  

DAMAR KURUNG CRAFTWORKS FOR GEOMETRICAL THINKING

open access: yesEthnomathematics Journal
Damar kurung is one of the art works of Gresik Regency and has become a local cultural asset. From the making process to the use of the damar kurung, many features, objects, and activities can be identified as having mathematical elements. The present study is aimed at identifying mathematical objects and phenomena in the damar kurung that be used as ...
openaire   +1 more source

A Knowledge‐Based Approach for Understanding and Managing Additive Manufacturing Data

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing processes generate a large amount of data. Effectively managing, understanding, and retrieving information from this data remains a major challenge. Therefore, we propose an ontology‐based approach to integrate heterogeneous data, enable semantic queries, and support decision‐making.
Mina Abd Nikooie Pour   +5 more
wiley   +1 more source

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller   +8 more
wiley   +1 more source

The impact of commercial board games on secondary school mathematics performance and thinking skills

open access: yesInternational Journal of Educational Research Open
Board games have been examined in the context of mathematics education from various perspectives. Neuroscience considerations imply that board games can serve as a tool for improving the mathematical thinking of students in a sensitive period of brain ...
Sára Szörényi   +3 more
doaj   +1 more source

Development of Sustainable MgO–C Refractories Using MgO–C Recyclates and a Novel Eco‐Friendly Fructose–Tannin Binder Crosslinked With Citric Acid

open access: yesAdvanced Engineering Materials, EarlyView.
This study develops sustainable MgO–C refractories using recycled materials and eco‐friendly fructose–tannin binders. The enhanced performance of citric acid as a cross‐linker and functional additives on mechanical and thermomechanical properties was examined. Characterization included strength tests, immersion trials, and microstructural and inclusion
Dinesh K. Gunasekar   +7 more
wiley   +1 more source

Is Biosphere Doing Theology?

open access: yesZygon, 2001
Three theories about evolution are presently under discussion: the genocentric theory, the organismocentric theory, and the biospherocentric theory. A brief discussion of the three theories is presented.
doaj   +2 more sources

On the social utility of symbolic logic: Lewis Carroll against ‘The Logicians’ [PDF]

open access: yes, 2015
Symbolic logic faced great difficulties in its early stage of development in order to acquire recognition of its utility for the needs of science and society.
Moktefi, Amirouche
core  

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