A5100363491- Organic Electronics and Photovoltaics
- Online Learning and Analytics
- Conducting polymers and applications
- Thin-Film Transistor Technologies
- Perovskite Materials and Applications
- Nanofluid Flow and Heat Transfer
- Solar Thermal and Photovoltaic Systems
- Nanowire Synthesis and Applications
- Text and Document Classification Technologies
- Molecular Junctions and Nanostructures
- Action Observation and Synchronization
- Technology-Enhanced Education Studies
- Technology Adoption and User Behaviour
- Intelligent Tutoring Systems and Adaptive Learning
- Recommender Systems and Techniques
- Solar-Powered Water Purification Methods
- Video Surveillance and Tracking Methods
- Teaching and Learning Programming
- Machine Learning and Data Classification
- Advanced Graph Neural Networks
- Quantum-Dot Cellular Automata
- Thermal Radiation and Cooling Technologies
- Solar Energy Systems and Technologies
- Educational Technology and Assessment
- Education and Vocational Training
University of Hong Kong
2024
Northwestern Polytechnical University
2022
South China University of Technology
2014-2021
State Key Laboratory of Luminescent Materials and Devices
2019-2020
University of the Cordilleras
2020
Liupanshui Normal University
2020
Beihang University
2019
South China Institute of Collaborative Innovation
2019
Higher Education Press (China)
2014
Graph-based semi-supervised learning, which further utilizes graph structure behind samples for boosting gains convincing results in several machine learning tasks. Nevertheless, existing graph-based methods have shortcomings from two aspects. On the one hand, many of them concentrate on improving label propagation over constructed through time-saving methods, e.g. path searching, without giving insights constructing a proper accommodated to samples. other some models are only devoted...
Large energy loss is one of the key factors that limit power conversion efficiency (PCE) organic solar cells (OSCs). In this work, we report reduced losses OSCs via introducing thiazole π-spacers with different orientations to replace thiophene prototype polymer PBDB-T. The newly formed thiazole-containing isomeric polymers, PBDBTz-2 and PBDBTz-5, exhibited blue-shifted absorption deeper lying levels compared When blended IT-4F, two polymers realized PCEs 10.4% for 9.6% respectively, which...
This paper reports the rational design and synthesis of a novel electron-withdrawing building block, thiazole flanked naphthalene diimide (TzNDI), which offers coplanar conformation deep-lying highest-occupied molecular orbitals energy level in resulting conjugated polymers. A series polymers (PTzNDI-2FT, PTzNDI-T, PTzNDI-Se, PTzNDI-2T) consisting TzNDI different donor units were synthesized characterized. The all possess high weight excellent thermal property. Their intense light absorption...
A binary cathode interlayer with both efficient charge extraction and transportation properties for large-bandgap non-fullerene OSCs.
All-polymer solar cells (all-PSCs) and all-polymer photodetectors (all-PPDs) are promising for application in flexible electronics, but their performance is greatly limited by the lack of polymer acceptors difficulties morphology control. Herein, we report use a high-mobility n-type semiconductor, PNDI-DTBT, fabricating high-performance all-PSCs all-PPDs. By pairing PNDI-DTBT with matched donor, prominent power conversion efficiency 8.5% was obtained all-PSCs, demonstrating great potential...
Blending morphology evolves with polymer chain propagation reduced phase separation scale and increased purity while blending morphological stability is dominated by the miscibility between donor acceptor.
research-article Share on Undergraduate IT education in China Authors: Ming Zhang Peking University, Beijing, ChinaView Profile , Long Higher Education Press, Authors Info & Claims ACM InroadsVolume 5Issue 3September 2014 pp 49–55https://doi.org/10.1145/2655759.2655774Online:05 September 2014Publication History 6citation260DownloadsMetricsTotal Citations6Total Downloads260Last 12 Months12Last 6 weeks2 Get Citation AlertsNew Alert added!This alert has been successfully added and will be sent...
Online education becomes increasingly important since traditional learning is shocked heavily by COVID-19. To better develop personalized plans for students, it necessary to build a model that can automatically evaluate students’ performance in online education. For this purpose, study we propose an ensemble method named light gradient boosting channel attention network (LGBCAN), which based on label distribution estimation. First, the machine (LightGBM) used predict tasks. Then The Channel...
The development of MOOCs has been widely lauded as an innovative mechanism for education. Studying on will gradually change higher education methodology. To better understand popularity among university students, it is useful to the determinant factors which affect students' intention. Therefore, in this research, we applied technology acceptance model (TAM) order examine reasons underlying MOOCs. Particular from social aspects were integrated with ordinary TAM further study their influences...
Sweeping around the whole world, MOOC (Massive Open Online Courses) has exerted profound influences and tremendous impacts to higher education. In order cope with such challenges brought by local universities, this paper is intended analyze requirements as well from universities in first place, then further establishes specific enhancement ideas improve teachers' teaching ability perspectives strengthening basic skills practices, reinforcing related trainings improving evaluation mechanisms...
With the rapid development of brain and cognitive neuroscience, research results science are applied to teacher training.By inducing long-lasting semantic memory, creating deep episodic optimizing efficient procedural stimulating associative automatic memory mobilizing positive emotional routes opened, smooth retrieval is realized, so as achieve training significance.
The ANOVA analysis is an analytical method used in comparative experiments to determine whether the relationship between independent variables and dependent significant. has characteristics of stability sensitivity, which can accurately quickly calculate significance influence different on variables. In this paper, applied analyze impact two interactive forms MOOCs user satisfaction. This paper uses "Python Programming" MOOC as a specific case, concludes that three-stage practical teaching...