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1,952 results on '"Zou, Yi"'

6. Assessment of Conceptual Understanding in Student Learning of Moon Phases

Author

Zou, Yi, Jin, Lizhen, Huang, Xiao, and Li, Yanbing

Abstract

Many research studies have shown that lower-secondary school students' scientific literacy depends on their understanding of corresponding scientific concepts. Therefore, it is of great significance to model and assess students' conceptual understanding in learning specific scientific concepts, because it can reflect and diagnose students' cognitive characteristics, so as to provide evidence for targeted educational interventions. However, on the topic of Moon Phases, existing research studies have deficiencies in the evaluation and analysis of different levels of students' conceptual understanding, which restrict teachers to take effective educational interventions to help them. Thus, this study explored a new level division and an assessment test for revealing and explaining students' different conceptual understanding in learning Moon Phases. This study was conducted among 768 Chinese lower-secondary school students. Through a variety of quantitative and qualitative analyses, it was found that students' conceptual understanding of Moon Phases can be divided into three levels of continuous improvement, including the mechanical memory of different phenomena of moon phases, the formation of a preliminary mental model of Moon Phases, and the construction of a complete mental model of Moon Phases. Accordingly, this study made some precise suggestions for effectively improving students' conceptual understanding of Moon Phases.

Published
2023

23. Assessment of Knowledge Integration in Student Learning of Buoyant Force

Author

Zou, Yi, Jin, Lizhen, Li, Yanbing, and Hu, Tao

Abstract

Students' problem-solving ability depends on their understanding of related scientific concepts. Therefore, the modeling and assessment of students' understanding of specific scientific concepts is important to promote students' problem-solving ability, as it can find students' understanding difficulties and explore breakthrough strategies accordingly. Inspired by the theory of knowledge integration and combined with the situational characteristics of science education in China, this study established a conceptual framework about buoyant force, which was applied to model students' different understandings of it. And based on the established framework, an assessment of buoyant force was designed and tested among 622 Chinese lower-secondary school students. Through the analysis of the test data and the interview outcomes, it was found that students' understanding of buoyant force could be divided into three levels of knowledge integration including novice, intermediate, and expert. Furthermore, the results demonstrate that an emphasis on the nature of buoyant force can be an effective strategy to help students achieve a deeper conceptual understanding of buoyant force, leading to a more integrated knowledge structure.

Published
2022

27. An Efficient Elliptic Curve Cryptography-Based Secure Communication with Privacy Preserving for Autonomous Vehicle

Author

Xiao, Jiongen, Liu, Yi, Zou, Yi, Li, Dacheng, and Leng, Tao

Subjects
Wireless telecommunications equipment, Privacy issue, Investment analysis, Privacy, Driverless cars, Cryptography, Wireless telecommunications equipment
Abstract

Internet of Vehicles can improve driving and riding experience, provide information needs, reduce environmental pollution, and improve transportation efficiency, thereby promoting the rapid development and application of intelligent transportation. Especially through the advantages of the rapidity of information exchange and the flexibility of real-time data processing, an autonomous vehicle can provide barrier-free, safe, and sustainable transportation. At present, the rapid progress of the Internet of Things has promoted the continuous development of a fully autonomous vehicle. However, the autonomous vehicle network uses wireless communication technology, and the openness of its communication channel makes the communication process vulnerable to various security attacks. Therefore, this paper proposes a practical and efficient secure communication in the autonomous vehicle. This scheme utilizes elliptic curve cryptography, which can protect the security of multiparty communication between vehicle, cloud server, and user with lower computation and communication overhead. This paper provides security verification for the scheme by using Scyther. An informal security analysis shows that this scheme can resist multiple attacks. Through a comparative analysis and performance evaluation of the schemes, we found that the scheme improves security while maintaining efficiency., Author(s): Jiongen Xiao (corresponding author) [1]; Yi Liu (corresponding author) [1,2]; Yi Zou [3]; Dacheng Li [4,5]; Tao Leng [6,7] 1. Introduction The global road traffic safety situation is severe, [...]

Published
2024
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31. Crystal structure of 3-(2-ethoxy-2-oxoethyl)-1-isopropyl-1H-imidazol-3-ium hexafluoridophosphate(V), C20H34F12N4P2

Author

Wu Su-Qin, Chen Shi-Shun, Zou Yi-Chen, Nie Xu-Liang, and Xiong Wan-Ming

Subjects
2322789, Physics, QC1-999, Crystallography, QD901-999
Abstract

[C20H34F12N4P2], triclinic, P1‾ $P\overline{1}$ (no. 2), a = 8.4322(10) Å, b = 13.6360(16) Å, c = 13.8381(16) Å, α = 89.9960(10)°, β = 105.5320(10)°, γ = 90.0150(10)°, V = 1533.0(3) Å3, Z = 2, Rgt (F) = 0.0613, wRref (F 2) = 0.1966, T = 296(2) K.

Published
2024
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