Results 61 to 70 of about 238,048 (257)

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

Characteristics of Polymer-Fullerene Solar Cells with ZnS Nanoparticles

International Journal of Electrochemical Science, 2015
The efficiency of the organic conjugated polymer solar cells can be significantly improved when we use organic conjugated polymers and fullerene blends as the photoactive layers of the cells.
Kin-Tak Lam, Yu-Jen Hsiao, Liang-Wen Ji, Te-Hua Fang, Wei-Shun Shih, Jun-Nan Lin   +5 more
doaj   +1 more source

Symbolic Regression and Multi‐Objective Optimization of the Flory–Huggins Interaction Parameter for Hydrogels

Advanced Engineering Materials, EarlyView.
We develop a data‐driven method to derive the mathematical expressions of the Flory–Huggins interaction parameter χ for the swelling behavior of temperature–responsive hydrogels. Starting from initial assumptions of χ, our workflow combines Bayesian optimization, Flory–Rehner theory, and symbolic regression to generate candidate χ expressions.
Yawen Wang, Adrian Ehrenhofer, Thomas Wallmersperger   +2 more
wiley   +1 more source

Thermoelectric Properties of a Diketopyrrolopyrrole Polymer With Radical Pending Units

Advanced Electronic Materials
Organic n‐type polymers usually suffer from relatively low electrical conductivity which hampers their application as an active layer for thermoelectrics. Molecular dopants such as benzimidazol‐2‐yl‐N, N‐dimethylbenzenamine (N‐DMBI) are often employed to
Jiang Jing, Qian Liu, Ilknur Hatice Eryilmaz, Loup Chopplet, Melissa Berteau‐Rainville, Marc Daniel Paulik, Zuchong Yang, Nicolas Battaglini, Vincent Noël, Benoit Piro, Tim Leydecker, Steven E. Bottle, Aung Ko Ko Kyaw, Christopher R McNeill, Giorgio Mattana, Prashant Sonar, Emanuele Orgiu   +16 more
doaj   +1 more source

Electrical characterization of fluorinated benzothiadiazole based conjugated copolymer – a promising material for high-performance solar cells

AIP Advances, 2015
Measurements of electrical conductivity, electron work function, carrier mobility of holes and the diffusion length of excitons were performed on samples of conjugated polymers relevant to polymer solar cells.
J. Toušek, J. Toušková, Z. Remeš, R. Chomutová, J. Čermák, M. Helgesen, J. E. Carlé, F. C. Krebs   +7 more
doaj   +1 more source

Molecular Dynamics Studies of Shape Memory Polymers: From Bead–Spring Models to Atomistic Simulations

Advanced Engineering Materials, EarlyView.
Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley   +1 more source

Thienyl‐Bridged Fused Porphyrin Tapes for Enhanced Heterogeneous Electrocatalytic Activity

ChemElectroChem
The development of highly conjugated metalloporphyrin assemblies is a crucial step to improve their catalytic activity for optimal energy conversion processes.
Hadi Ghahramanzadehasl, Deepak Bansal, Drialys Cardenas Morcoso, Nicolas D. Boscher   +3 more
doaj   +1 more source

Microstructure Reconstruction in Battery Electrodes Using Machine Learning Based on Low‐Voltage Focused Ion Beam–Scanning Electron Microscopy Tomography Images

Advanced Engineering Materials, EarlyView.
Low‐voltage FIB‐SEM tomography combined with a image preprocessing pipeline improves phase contrast and enables reliable machine‐learning segmentation of conductive networks in lithium‐ion battery electrodes. Structural descriptors are extracted from segmented images, done semimanually and automated, and compared.
Lisa Beran, Vincent Nebel, Dominik Perius, Kshitij Kumar, Yannis Heim, Laura Bies, Tobias Kraus   +6 more
wiley   +1 more source

On‐Surface Polymerization of Bis(pyridyl)butadiyne Evidenced by Scanning Tuneling Microscopy and Application in Photocatalysis

Small Structures
Solar‐light‐responsive photocatalyst technology, which offers energy harvesting directly from solar light, holds great potential for both water treatment and environmental purification.
Yan Wu, Viet‐Dung Duong, Yannick Dappe, Cesar Gonzalez, Diana Dragoe, Isabelle Lampre, Ally Aukauloo, Hynd Remita, Xiaonan Sun   +8 more
doaj   +1 more source

Machine Learning‐Supported Analysis for Predicting and Visualizing Nonlinear Relationships Between Material Properties in Electroplated Chromium Layers

Advanced Engineering Materials, EarlyView.
This study applies machine learning regression to predict chromium layer thickness in decorative trivalent chromium electroplating, using 441 experiments from laboratory‐scale (1L) and pilot‐scale (14L) setups. Tree‐based models, particularly CatBoost, outperformed linear regression by capturing nonlinear parameter interactions (R2$R^2$ up to 0.77 ...
Christoph Baumer, Christopher Mai, Luca Eisentraut, Andreas Bund, Ricardo Buettner   +4 more
wiley   +1 more source