In contemporary Chinese higher education, classroom lectures combined with a web-based learning support system are broadly applied. This study investigated what kind of feedback strategy could be effective in improving students self-efficacy and course satisfaction in a blended learning context. Volitional messages were constructed and along with traditional feedback content (knowledge of results and knowledge of correct response) distributed to a large undergraduate class in China. Sixty-seven freshmen participated in this study. Results indicated that students learning self-efficacy and...

The development of nanotechnology and energy-related technologies in the past three decades has led to an increased interest in the application of carbon fiber-based materials in electrochemical energy storage devices, such as supercapacitors, Li/Na-ion batteries. However, the electrochemical performance of carbon fiber-based materials is closely related to their structure and fabrication methods. Therefore, how to control the micro-nanostructure of carbon fiber-based materials and gain a deep understanding of the relationship between their electrochemical performance, structure, and...

With the continuous development of wearable electronic devices, the demand for energy storage devices with characteristics such as "light", "thin", and "flexible" is becoming increasingly urgent in the market. Flexible supercapacitors have the characteristics of fast charging and discharging rate, high power density, long cycle life, and safety and environmental protection. They are a promising energy storage device and have attracted much attention. In this book, by studying the preparation and characterization of graphene based flexible electrode materials, we aim to develop...