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Your search keyword '"Huang, Yuxuan"' showing total 273 results
Start Over Author "Huang, Yuxuan" Publication Type Academic Journals
273 results on '"Huang, Yuxuan"'

7. Automatically Identifying Teachers' Autonomy Support using Text Classification on Imbalanced Data

Author

Li, Jian, Feng, Yu, Wang, Jingwen, Zhao, Tongyu, Huang, Yuxuan, Zu, Yatong, and Xu, Hao

Subjects
Artificial Intelligence, Education, Psychology, Behavioral Science, Neural Networks
Abstract

Autonomy support is an interpersonal tone of support and understanding. Teachers' instructional behaviors with autonomy support facilitate students' inner motivational resources and enhance their engagement in learning activities. Identifying these behaviors is vital in terms of teaching effects on students' academic performance and behaviors. However, existing methods heavily rely on psychological questionnaires or observers, which are time consuming and difficult to apply in large scale teaching scenarios. In this work, we combine deep neural networks with psychology to achieve automatically identifying the behaviors. To this end, we create the first Chinese instructional behavior dataset for deep learning, and then construct a BERT-based network for modeling psychological features and identifying behaviors. Since frequencies of different behaviors are highly imbalanced, we further design a novel loss function to adaptively optimize training weights for each behavior. Extensive experiments verify the effectiveness of our method and explain how the behaviors are identified.

Published
2023

20. Structural and Dynamic Disorder, Not Ionic Trapping, Controls Charge Transport in Highly Doped Conducting Polymers

Author

Jacobs, Ian E, D’Avino, Gabriele, Lemaur, Vincent, Lin, Yue, Huang, Yuxuan, Chen, Chen, Harrelson, Thomas F, Wood, William, Spalek, Leszek J, Mustafa, Tarig, O’Keefe, Christopher A, Ren, Xinglong, Simatos, Dimitrios, Tjhe, Dion, Statz, Martin, Strzalka, Joseph W, Lee, Jin-Kyun, McCulloch, Iain, Fratini, Simone, Beljonne, David, and Sirringhaus, Henning

Subjects
Engineering, Macromolecular and Materials Chemistry, Materials Engineering, Chemical Sciences, General Chemistry, Chemical sciences
Abstract

Doped organic semiconductors are critical to emerging device applications, including thermoelectrics, bioelectronics, and neuromorphic computing devices. It is commonly assumed that low conductivities in these materials result primarily from charge trapping by the Coulomb potentials of the dopant counterions. Here, we present a combined experimental and theoretical study rebutting this belief. Using a newly developed doping technique based on ion exchange, we prepare highly doped films with several counterions of varying size and shape and characterize their carrier density, electrical conductivity, and paracrystalline disorder. In this uniquely large data set composed of several classes of high-mobility conjugated polymers, each doped with at least five different ions, we find electrical conductivity to be strongly correlated with paracrystalline disorder but poorly correlated with ionic size, suggesting that Coulomb traps do not limit transport. A general model for interacting electrons in highly doped polymers is proposed and carefully parametrized against atomistic calculations, enabling the calculation of electrical conductivity within the framework of transient localization theory. Theoretical calculations are in excellent agreement with experimental data, providing insights into the disorder-limited nature of charge transport and suggesting new strategies to further improve conductivities.

Published
2022

47. Sustainable Snail‐Inspired Bio‐Based Adhesives with Ultra‐High Adhesion.

Author

Zhu, Qiuwen, Li, Rui, Yan, Yiyang, Huang, Yuxuan, Su, Hang, Dong, Yutian, Pan, Xihao, Sun, Wei, Wang, XiaoZhao, Meng, Hongxu, Wang, Rong, Ouyang, Hongwei, and Hong, Yi

Subjects
MANUFACTURING processes, ALKALINE solutions, ELECTROSTATIC interaction, MOLECULAR interactions, POLYPEPTIDES
Abstract

Adhesives play a crucial role in modern everyday applications, prompting a growing environmental consciousness regarding their source, composition, utilization, and disposal. Sustainability concerns are frequently generated due to the complex or energy‐intensive manufacturing processes in the production of conventional water‐based adhesives. Here, a coacervate‐based snail‐inspired solvent‐free adhesive (SFA) is engineered by strategically modulating electrostatic interactions and molecular entanglement of two polypeptides under environmentally friendly conditions. The SFA has a record‐breaking adhesion strength of 28 MPa on ceramics, setting a new standard for bio‐based adhesives. The SFA demonstrates robust adhesion performance across a wide temperature ranging from −150 to 300 °C and allows for reusability without compromising adhesion properties. Moreover, it can be easily removed using a non‐toxic alkaline solution. The study presents a promising opportunity for developing high‐performance, reusable adhesives made from renewable materials suitable for industrial applications, relics repair, and even spacecraft processing. [ABSTRACT FROM AUTHOR]

Published
2024
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