Results 81 to 90 of about 13,945 (287)

A Comparative Study of Shock Absorption Capacities of Custom Fabricated Mouthguards using a Triangulation Sensor [PDF]

, 2019
This in-vitro study compares the shock absorption qualities of five mouthguard designs measured with a triangulation laser sensor during small hard object collisions.
Dräger, Juliane, Helbig, Julia, Jost-Brinkmann, Paul-Georg, Sarac, Rūta   +3 more
core   +1 more source

Performance of waste-paper/PETG wood–plastic composites [PDF]

AIP Advances, 2018
Wood–plastic composites were prepared from polyethylene terephthalate- 1,4-cyclohexanedimethanol ester (PETG) and waste-paper fiber that was unmodified, modified with alkyl-ketene-dimer (AKD), and modified with a silane-coupling agent. The mechanical properties, water absorption properties, surface structure, and thermal properties of the three ...
Lijie Huang, Shuxiang An, Chunying Li, Chongxing Huang, Shuangfei Wang, Xiaoxiao Zhang, Mingzi Xu, Jie Chen, Lei Zhou   +8 more
openaire   +2 more sources

Compatibilization Mechanisms of Telechelic Polyethylene Reactive Additives in Polyethylene Terephthalate/Polyethylene Blends

Journal of Polymer Science, EarlyView.
A deeper understanding of reactive blend compatibilization using hydroxy telechelic polyethylene additives in blends of glycol‐modified polyethylene terephthalate and polyethylene is developed. Preformation of copolymer during reactive mixing is key for successful compatibilization of this system at lower mixing temperatures. ABSTRACT Imperfect sorting
Aristotle J. Zervoudakis, Erin Maines, Caitlin S. Sample, Jamie Rowland, Christopher J. Ellison   +4 more
wiley   +1 more source

Evaluation of thermoplastic composites for the manufacture of H-Darrieus wind Turbine blades on a laboratory scale

Journal of Materials Research and Technology
Wind energy is one of the most widely produced sources of renewable and clean electricity. However, the blades of wind turbines pose a significant environmental challenge due to the difficulty in recycling them. To address this issue, research is focused
Andres F. Olivera, Edwin L. Chica, Henry A. Colorado   +2 more
doaj   +1 more source

Optimization of Flexural Performance of PETG Samples Produced by Fused Filament Fabrication with Response Surface Method

Polymers
Additive manufacturing (AM), particularly fused filament fabrication (FFF), has gained significant attention for its design flexibility and cost-effectiveness. This study focuses on optimizing FFF parameters that employ response surface methodology (RSM)
Oğuz Tunçel, Çağlar Kahya, Kenan Tüfekci   +2 more
semanticscholar   +1 more source

Impact of Packaging and Recycling Systems on Material Recirculation: A Stage‐Decomposition Model

Packaging Technology and Science, EarlyView.
A system‐level view emerges from decomposing recycling into four stages (participation, collection, sorting and process yield), diagnosing constraints and targeting interventions. Cumulative equivalent uses (CEUs) quantify long‐term retention, revealing marginal improvements at high baselines generate disproportionately larger gains than low‐baseline ...
Diogo Figueirinhas, Daniel Hellström, Henrik Pålsson, Yulia Vakulenko   +3 more
wiley   +1 more source

An experimental investigation on 3d printing of PETG-KF-based composites: optimization of process parameters for improved mechanical properties

Cogent Engineering
In the field of additive manufacturing, Fused Filament Fabrication (FFF) is a prominent techniques used to create elaborate three-dimensional objects without wasting materials.
Sandeep Varma Kuchampudi, Kunjee Lal Meena, Rama Bhadri Raju Chekuri   +2 more
doaj   +1 more source

Iron Deposition following Chronic Myocardial Infarction as a Substrate for Cardiac Electrical Anomalies: Initial Findings in a Canine Model [PDF]

, 2013
Purpose: Iron deposition has been shown to occur following myocardial infarction (MI). We investigated whether such focal iron deposition within chronic MI lead to electrical anomalies. Methods: Two groups of dogs (ex-vivo (n = 12) and in-vivo (n = 10))
Amorn, Allen M., Bennett, Nathan, Chugh, Sumeet S., Cokic, Ivan, Dharmakumar, Rohan, Harlev, Doron, Jackman, Warren M., Kali, Avinash, Liu, Enzhao, Shehata, Michael, Stewart, Brian, Tang, Richard, Thajudeen, Anees, Tsaftaris, Sotirios A., Wang, Xunzhang, Yang, Hsin-Jung   +15 more
core   +3 more sources

Supramolecular Assemblies of Self‐Immolative Janus Dendrimers With Rapid Photodegradation Response

Small, EarlyView.
Self‐immolative Janus dendrimers assemble into spherical nanoparticles with solid cores. Upon irradiation, rapid end‐to‐end depolymerization triggers a unique degradation pathway from spheres to crescents within minutes, enabling on‐demand release of encapsulated cargo.
Chuanfeng Li, Jiabin Luan, Daniela A. Wilson, Elizabeth R. Gillies   +3 more
wiley   +1 more source

3D printed polyethylene terephthalate glycol ternary composites with short carbon fiber/ carbon nanotube graphitic reinforcements: Insights into multi-scale synergistic mechanisms

Composites Part C: Open Access
Three-dimensional printed (3DP) Polyethylene Terephthalate Glycol (PETG) ternary composites reinforced with short carbon fibers (sCF) and multi-walled carbon nanotubes (CNT) are reported for the first time. A single-screw extrusion process is employed to
Fivos Simopoulos, George Kampourakis, George Karalis, Benke Li, Emmanouil Porfyrakis, Stavros Katsiaounis, Aaron Soul, Dimitrios Papageorgiou, Marco Liebscher, Konstantinos Papagelis, Apostolos Karanastasis, Nikolaos Papadakis, Lazaros Tzounis   +12 more
doaj   +1 more source