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329 results on '"Deng, Teng"'

3. Is Informational Teaching More Efficient than Traditional Teaching in Design? -- A Case Study of Product Design in Vocational Education in Guangzhou

Author

Ni, Yuan, Deng, Teng, Li, Jing, Zhang, Jiaqi, and Zhang, Chi

Abstract

Under the rapid development of higher vocational colleges in China, design subject was receiving increasing number of students and confronting the necessity of improving teaching efficiency. Informational technology, regarded as an effective approach in many areas, was investigated for its impact on the design teaching efficiency and evaluated its potential appropriateness in this research. Under the same topic containing five different design modules, we set an informational teaching group and a traditional teaching group that they had the same number of students. Additionally, the teaching quality and effectiveness was evaluated by the combination of Information Technology-Based Interaction Analysis System, students' anonymous questionnaire, and assessments from the teacher and industrial experts, which were considered as objected analysis, subjective responses, and professional assessment, respectively. Our findings showed that the application of informational technology could improve the teaching and learning effectiveness. Informational teaching was capable of increasing students' interest and participation by transforming receiving knowledge passively into searching, discovering, and solving problems actively. The results of questionnaire exhibited that informational technology might effectively enhance supporting knowledge access, strengthening knowledge learning, and cultivating students' interest. The industrial experts showed more appreciation for students' behavior under informational teaching. When the content was mainly related to basic knowledge or sort of interdisciplinary, the advantages from informational teaching would be weakened or even disappeared. In the future, the experiment or research could be extended and upscaled for more detailed information, which might promote people's acknowledgement in design teaching.

Published
2023
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41. Cultural Engagement and Interactive Communication: A Study on the Implementation of New Media on Museum’s Digital Interpretations

Author

Chiu, Chih-Yung Aaron, Shih, Deng-Teng Leo, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, and Rau, Pei-Luen Patrick, editor

Published
2020
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47. Mannardite as the main vanadium-hosting mineral in black shale-hosted vanadium deposits, South China.

Author

Yang, Lifei, Li, Zenghua, Ouyang, Yongpeng, Deng, Teng, Deng, Youguo, and Xu, Deru

Subjects
ELECTRON probe microanalysis, VANADIUM, BLACK shales, MINERALS, DEPOSIT accounts, SPHENE
Abstract

Black shale-hosted vanadium (V) deposits account for about 80% vanadium resources in the world, but only <2% vanadium in the black shale can be extracted mainly due to insufficient recognition on the occurrence mode of vanadium. It is commonly agreed that most vanadium in the black shale is hosted in clay minerals and organic matters, but it is not clear how the other parts of vanadium exist and whether there exists a vanadium mineral, which has limited our understanding of metallogenic mechanism of black shale-hosted vanadium deposits. The Jiujiang Basin at the Lower Yangtze Block is a significant black shale-hosted vanadium metallogenic district. In this work, we conducted systematic studies of mineralogy, lithology and geochemistry on the occurrence of vanadium hosted in the black shales. Electron probe microanalysis (EPMA), Raman spectroscopy, and X-ray diffraction (XRD) show that the main vanadium-hosting mineral in the black shale is mannardite, with a structural formula of B a 0.96 ⋅ H 2 O T i 5.87 V 1.87 3 + V 0.11 4 + S i 0.07 C r 0.07 F e 0.02 3 + O 16.00 , space group I41/a, unit-cell parameters a = b = 14.346(7) Å, c = 5.899(1) Å, α = β = γ = 90°, Z = 4. Data from EPMA, TESCAN integrated mineral analyzer (TIMA), and whole-rock geochemistry indicate that 12.32–44.06% (average 24.95%) vanadium exists in mannardite. Most vanadium atoms in mannardite occupy its structural sites as trivalent vanadium (V3+), forming chemical bonds with O atoms as V O 2 − , whereas a minor amount of vanadium atoms replace titanite atoms (Ti4+) as quadrivalent vanadium (V4+) by isomorphism. Mannardite precipitates under a strong reductive condition with sufficient trivalent vanadium species, titanium and biogenic barium (bio-barite). Our first identification of mannardite in black shale-hosted vanadium deposits thus sheds light on the occurrence mode of vanadium and the metallogenic mechanism of black shale-hosted vanadium deposits. [ABSTRACT FROM AUTHOR]

Published
2024
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