Results 1 to 10 of about 85,265 (166)

Multi-Objective Optimization of Plastics Thermoforming

Mathematics, 2021
The practical application of a multi-objective optimization strategy based on evolutionary algorithms was proposed to optimize the plastics thermoforming process. For that purpose, in this work, differently from the other works proposed in the literature,
António Gaspar-Cunha, Paulo Costa, Wagner de Campos Galuppo, João Miguel Nóbrega, Fernando Duarte, Lino Costa   +5 more
doaj   +1 more source

Improving the Thermal Properties of Polycarbonate via the Copolymerization of a Small Amount of Bisphenol Fluorene with Bisphenol A

International Journal of Polymer Science, 2022
Polycarbonate is an attractive transparent plastic with high mechanical/thermal properties. A family of copolycarbonates of bisphenol-A (BPA), 9, 9-bis (4-hydroxyphenyl) fluorene (BHPF), and diphenyl carbonate (DPC) were prepared by a transesterification
Xiaozhou Zhang, Yang Liu, Xin Li, Xin Liu, Xigao Jian, Jinyan Wang   +5 more
doaj   +1 more source

Capacitance measurements on integrated conductors for detection of matrix cracks in GFRP

Functional Composite Materials, 2021
For the reliable and cost-efficient application of glass fibre polymer composites in structural applications, knowledge of the damage state of the material during operation is necessary. Within this work, a structural health monitoring method based on in-
Christina Buggisch, Abedin Gagani, Bodo Fiedler   +2 more
doaj   +1 more source

3D Heat Transfer of an Injection Mold: ANSYS Workbench and Mechanical APDL

Engineering Proceedings, 2023
Recent advancements in additive manufacturing have facilitated the production of conformal cooling channels with greater ease and cost-effectiveness.
Hugo Miguel Silva, Hugo Luís Rodrigues, João Tiago Noversa, Leandro Fernandes, António José Pontes   +4 more
doaj   +1 more source

Hybrid Manufacturing of Aluminium Parts Combining Additive and Conventional Technologies—Mechanical and Thermal Properties

Journal of Manufacturing and Materials Processing, 2022
Metal additive-manufacturing technologies enable the production of complex geometries. However, high manufacturing costs hinder these technologies being employed in some industries.
Eva C. Silva, Josué A. Candiango, Sérgio J. Rodrigues, Álvaro M. Sampaio, António J. Pontes   +4 more
doaj   +1 more source

The Kinetics of Chitosan Degradation in Organic Acid Solutions

Marine Drugs, 2021
This paper presents a comparative study on chitosan degradation in organic acid solutions according to their different dissociation characteristics. More precisely, the aim of the study was to determine the kinetics of the degradation process depending ...
Dominik Sikorski, Karolina Gzyra-Jagieła, Zbigniew Draczyński   +2 more
doaj   +1 more source

2D Heat Transfer of an Injection Mold: ANSYS Workbench and Mechanical APDL

Engineering Proceedings, 2023
The latest developments in additive manufacturing have enabled the creation of conformal cooling channels with improved efficiency and cost efficiency.
Hugo Miguel Silva, Hugo Luís Rodrigues, João Tiago Noversa, Leandro Fernandes, António José Pontes   +4 more
doaj   +1 more source

3D Lamellar-Structured Graphene Aerogels for Thermal Interface Composites with High Through-Plane Thermal Conductivity and Fracture Toughness

Nano-Micro Letters, 2020
Highlights Lamellar-structured graphene aerogels with vertically aligned and closely stacked high-quality graphene lamellae are fabricated. The superior thermally conductive capacity of the aerogel endows epoxy with a high through-plane thermal ...
Pengfei Liu, Xiaofeng Li, Peng Min, Xiyuan Chang, Chao Shu, Yun Ding, Zhong-Zhen Yu   +6 more
doaj   +1 more source

A Design Optimization Methodology Applied to Conformal Cooling Channels in Injection Molds: 2D Transient Heat Transfer Analysis

Engineering Proceedings, 2023
Fabricating conformal cooling channels has become easier and more cost-effective because of recent advances in additive manufacturing. Conformal cooling channels (CCCs) give better cooling performance than regular (straight drilled) channels during the ...
Hugo Miguel Silva, João Tiago Noversa, Leandro Fernandes, Hugo Luís Rodrigues, António José Pontes   +4 more
doaj   +1 more source

Wrinkle-structured MXene film assists flexible pressure sensors with superhigh sensitivity and ultrawide detection range

Nanocomposites, 2022
With the rapid development of artificial intelligence and ever-increasing demand for electronic devices, constructing high-performance flexible pressure sensors is urgently needed.
Yuhuan Lv, Lizhen Min, Fengxiao Niu, Xiangyang Chen, Biao Zhao, Yong Liu, Kai Pan   +6 more
doaj   +1 more source