Results 111 to 120 of about 1,835,677 (289)

Deciphering the Photopolymerization‐Induced Nanostructures and Interface Formation for Submicrometer Additive Manufacturing

Advanced Functional Materials, EarlyView.
This work reveals the UV‐curing‐induced monomer‐rich domain, oligomer‐rich domain, and entangled oligomer domain. The cured submicron films in stressed state induce interlayer nano‐wrinkle structures during the deposition of the second layer. Stress‐free cured films in relaxed state form non‐diffusive, diffusive and semi‐diffusive interlayer ...
Shouzheng Chen, Yufeng Zhai, Jungui Zhou, Lixing Li, Simon Schraad, Guangjiu Pan, Xuehe Jiang, Sarathlal Koyiloth Vayalil, Rolf A. T. M. van Benthem, Julien R. G. Navarro, Johan F. G. A. Jansen, Mats K. G. Johansson, Peter Müller‐Buschbaum, Stephan V. Roth   +13 more
wiley   +1 more source

Level Berpikir Geometri Peserta Didik Berdasarkan Teori Van Hiele pada Materi Bangun Ruang Sisi Datar

Jurnal Elemen, 2021
According to Van Hiele, in understanding geometry, students need to understand five stages, namely stage 1 (introduction stage), stage 2 (analysis stage), stage 3 (sequencing stage), stage 4 (deduction stage), and stage 5 (accuracy stage).
Anna Cesaria, Tatang Herman, Jarnawi Afgani Dahlan   +2 more
doaj  

Biodegradable 3D‐Printable and Coatable Antifouling Composites for Marine Applications

Advanced Functional Materials, EarlyView.
Marine biofouling damages submerged surfaces and raises greenhouse gas emissions. Biodegradable antifouling biocomposites were developed by hot‐mixing beeswax, Tween 80, and calcium stearate or stearic acid. Adjusting the component ratio enables processing via hot‐pressing, 3D‐printing, or dip‐coating.
Gabriele Corigliano, Lorenzo Ravelli, Martina Nardi, Ruowen Tu, Elena Bellini, Valerio Isa, Carlo Filippeschi, Roberta Finazzi, Luca Ceseracciu, Niloofar Paknezhad, Vincenzo Scribano, Paolo Galli, Silvia Lavorano, Simone Montano, Barbara Mazzolai, Marco Contardi, Pietro Cataldi, Athanassia Athanassiou   +17 more
wiley   +1 more source

Exchequer motor game enhances geometric thinking and mood in first grade children [PDF]

This study investigated the effect of the motor game 'Exchequer Motor Game' (EMG) on first-grade children's Level of Geometric Thinking (LGT) and their post-learning mood tracking (PLMT).
Wael Zoghlami, Chikha, Anis ben, Marsigliante, Santo, Hawani, Aymen, Antonella Muscella, Anis ben Chikha, Santo Marsigliante, Zoghlami, Wael, Aymen Hawani, Muscella, Antonella   +9 more
core   +1 more source

Paving the Way for Next‐Generation Solid‐State Waste Heat Recovery: A Thermomagnetic Materials and Systems Roadmap

Advanced Functional Materials, EarlyView.
Unlocking thermomagnetic low‐grade waste heat recovery. This perspective provides a comprehensive roadmap for the development of thermomagnetic materials and systems. By addressing key engineering challenges across multiple scales, it bridges the gap between micro‐power IoT devices and large‐scale industrial applications. ABSTRACT Nearly half of global
A. Waske, K. Klinar, S. Fähler, M. Kohl, N. M. Dempsey, F. Albertini, G. A. de Wijs, T. Schrefl, M. Maschek, S. Lionte, C. Megnin, N. van Dijk, A. Kitanovski, E. Brück   +13 more
wiley   +1 more source

Molecularly Dissipative Liquid Crystal Elastomer Foams for Impact and Vibration Attenuation

Advanced Functional Materials, EarlyView.
Liquid crystal elastomer foams integrate cellular deformation with mesogen reorientation to create a dual‐scale energy dissipation mechanism. Progressive pore collapse absorbs mechanical loads, while stress‐induced mesogen reorientation provides additional damping, resulting in reduced impact transmission and broadband suppression of vibrational ...
Subi Choi, Sangyeop Lee, In‐sun Jeong, Kyungjun Song, Eugene M. Terentjev, Suk‐kyun Ahn   +5 more
wiley   +1 more source

Magneto‐Ionic Devices With Polymer‐Based Electrolytes

Advanced Functional Materials, EarlyView.
Polymer electrolytes are introduced for magneto‐ionic devices based on hydroxide and hydrogen ions. The magneto‐ionic effect results in a pronounced voltage‐controlled variation of coercivity in both devices. The switching speed is in the range of 100 ms.
Markus Gößler, Richard Weber, Michael Sommer, Karin Leistner   +3 more
wiley   +1 more source

Enhancing Primary Pupils' Geometric Thinking Through Phase-Based Instruction Using The Geometer's Sketchpad [PDF]

, 2013
The purpose of this study was to enhance primary pupils' geometric thinking through phase-based instruction using The Geometer's Sketchpad (GSP) based on the van Hiele theory of geometric thinking.
Chew , Cheng Meng, Lim , Chap Sam
core   +2 more sources

Teachers’ Experiences with Students’ Learning Obstacles in Geometric Thinking: Insights from the van Hiele Framework

International Journal of Research in Mathematics Education
Understanding geometric concepts is often a challenge for students because it requires spatial thinking and deductive reasoning skills that develop gradually.
Nur'aini Muhassanah, Muhammad 'Azmi Nuha, Riski Aspriyani   +2 more
doaj   +1 more source

DAMAR KURUNG CRAFTWORKS FOR GEOMETRICAL THINKING

Ethnomathematics 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