Results 71 to 80 of about 183,459 (262)

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

Advanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares, Nadège Bouchonneau, Christian Jochum, Donald Radford   +3 more
wiley   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

PENGEMBANGAN MODUL AJAR BERBANTUAN E-LKPD BERBASIS CREATIVE PROBLEM SOLVING UNTUK MENINGKATKAN KEMAMPUAN PEMECAHAN MASALAH MATEMATIS

Aksioma: Jurnal Program Studi Pendidikan Matematika
Kemampuan pemecahan masalah sangat penting untuk menghasilkan ide dan strategi untuk mengonstruksi pengetahuan. Faktanya, kemampuan pemecahan masalah matematika peserta didik masih kurang akibat kurangnya perangkat pembelajaran dan keterlibaatan belajar ...
Annisa Mahendra, Armiati Armiati, Edwin Musdi, Suherman Suherman   +3 more
doaj   +1 more source

Fostering Innovation: Streamlining Magnetocaloric Materials Research by Digitalization

Advanced Engineering Materials, EarlyView.
Magnetocaloric cooling (MCE) is an environmentally friendly refrigeration method with great potential. Optimizing MCE materials involves the preparation and screening of large quantities of samples, which in turn generates a large amount of data. A digitalization approach is presented that uses ontologies, knowledge graphs, and digital workflows to ...
Simon Bekemeier, Moritz Blum, Luana Caron, Alisa Chirkova, Philipp Cimiano, Basil Ell, Inga Ennen, Michael Feige, Maik Gaerner, Thomas Hilbig, Andreas Hütten, Günter Reiss, Tapas Samanta, Sonja Schöning, Christian Schröder, Lennart Schwan, Chris Taake, Martin Wortmann   +17 more
wiley   +1 more source

TPACK Based Differentiated Problem Posing to Enhance Entrepreneurial Digital Problem Solving

Aptisi Transactions on Technopreneurship
This study aims to determine the effect of TPACK-based differentiated learning on high school students' problem-solving abilities and motivation. The study, conducted at Private Senior High School PAB 8 Saentis Sei Tuan, used a quasi-experiment method ...
Derlina Derlina, Siti Zuhra, Satria Mihardi, Rajo Hasim Lubis, John Tampil Purba, Stephanie Stephanie   +5 more
doaj   +1 more source

Multimodal Data‐Driven Microstructure Characterization

Advanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang, Santiago Benito, Özge Özgün, Sebastian Weber, Markus Stricker   +4 more
wiley   +1 more source

The Relationship between Self-Directed Learning and Problem-Solving Ability in Trigonometry

Journal of Mathematics Instruction, Social Research and Opinion
Mathematical problem-solving abilities in trigonometry material remain a challenge for many students, partly because they lack self-directed learning skills to manage the learning process.
Iim Muhijah, Rika Mulyati Mustika Sari, Rafiq Zulkarnaen, Kiki Nia Sania Effendi   +3 more
doaj   +1 more source

The Correlation of Critical Thinking Skill and Science Problem-Solving Ability of Junior High School Students

Jurnal Pendidikan Sains, 2017
: This paper intends to seek the correlation of critical thinking skill and problem-solving ability of students on Natural Sciences Subject within Junior High School in Ecosystem topic.
Irma Lismayani, Parno Parno, Susriyati Mahanal   +2 more
doaj   +1 more source