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669 results on '"Yuan, Dandan"'

2. Fully automated chemiluminescence microarray immunoassay for detection of antinuclear antibodies in systemic autoimmune rheumatic diseases

Author

Yuan Dandan, Yang Xue, Ji Chen, Sun Guo, Xu Yang, Cao Ye, Ye Yan, Wang Tingting, and Hu Zhigang

Subjects
antinuclear antibodies, clmia, systemic autoimmune rheumatic diseases, Medical technology, R855-855.5
Abstract

Detection of specific antinuclear antibodies is very important in term of diagnosis, prognosis and management of patients with systemic autoimmune rheumatic diseases. Chemiluminescence microarray immunoassay (CLMIA) is a microdot array-based method that allows simultaneous detection of multiple antinuclear antibodies, which received increasing attention.

Published
2024
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15. Summary

Author

Zhao, Pengjun, Yuan, Dandan, Zhao, Pengjun, Series Editor, and Yuan, Dandan

Published
2023
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16. A flexible film thermocouple temperature sensor

Author

Bao, Yulong, Xu, Bin, Wang, Huang, Yuan, Dandan, Yan, Xiaoxiao, Shu, Haoxin, and Tang, Gang

Subjects
Condensed Matter - Materials Science, Physics - Applied Physics
Abstract

This article introduces a thin-film thermocouple temperature sensor with symmetrical electrode structure. It uses PI film as a flexible substrate. Cu film and CuNi film made by MEMS manufacturing process as positive and negative electrodes. The device itself has the advantages of miniature, bendable and fast response speed. To reduce the film resistance value. Conducting metal film thickness and sputtering substrate temperature optimization experiments. The critical dimensions of Cu/CuNi film are 650nm and 400nm. The best sputtering substrate temperature for Cu/CuNi films is 100 degrees Celsius and 150 degrees Celsius. Testing the adhesion of thin film thermocouples using the peel-off method. The test result is 9.4N. Finally, the film thermocouple temperature sensor is subjected to a temperature static calibration experiment. The result shows that the actual potential difference error is within 1 degrees Celsius. It belongs to the second class standard in the formulation of thermocouple standards in my country. Through curve fitting, the corresponding relationship between temperature and potential difference is more accurate.

Published
2021

17. A capacitive flexible tactile sensor

Author

Yuan, Dandan, Shu, Haoxin, Bao, Yulong, Xu, Bin, and Wang, Huan

Subjects
Condensed Matter - Materials Science, Physics - Applied Physics
Abstract

In this paper, a capacitive flexible tactile sensor was designed to measure the pressure of objects based on MEMS technology. This sensor is a structure of a 4x4 array, with metal Ag as the capacitive electrode, which forms the tactile sensing unit of the sensor. The structure of capacitive flexible tactile sensor was designed and an experimental platform was established to test the performance. The tests show that when the thickness of the intermediate layer is 2 mm and the density is medium, the sensor's sensitivity is the best while the time of both the response and the rebound is fast.

Published
2021

39. Forward Private Searchable Symmetric Encryption with Optimized I/O Efficiency

Author

Song, Xiangfu, Dong, Changyu, Yuan, Dandan, Xu, Qiuliang, and Zhao, Minghao

Subjects
Computer Science - Cryptography and Security
Abstract

Recently, several practical attacks raised serious concerns over the security of searchable encryption. The attacks have brought emphasis on forward privacy, which is the key concept behind solutions to the adaptive leakage-exploiting attacks, and will very likely to become mandatory in the design of new searchable encryption schemes. For a long time, forward privacy implies inefficiency and thus most existing searchable encryption schemes do not support it. Very recently, Bost (CCS 2016) showed that forward privacy can be obtained without inducing a large communication overhead. However, Bost's scheme is constructed with a relatively inefficient public key cryptographic primitive, and has a poor I/O performance. Both of the deficiencies significantly hinder the practical efficiency of the scheme, and prevent it from scaling to large data settings. To address the problems, we first present FAST, which achieves forward privacy and the same communication efficiency as Bost's scheme, but uses only symmetric cryptographic primitives. We then present FASTIO, which retains all good properties of FAST, and further improves I/O efficiency. We implemented the two schemes and compared their performance with Bost's scheme. The experiment results show that both our schemes are highly efficient, and FASTIO achieves a much better scalability due to its optimized I/O.

Published
2017

41. Characteristics of Pinus hwangshanensis Rhizospheric Fungal Community along Huangshan Mountain's Elevation Gradients, China.

Author

Zuo, Qinglin, Dang, Keke, Yin, Jing, Yuan, Dandan, Lu, Jing, and Xiang, Xingjia

Subjects
FUNGAL communities, SOIL microbiology, PHYTOPATHOGENIC microorganisms, BIOTIC communities, MICROBIAL communities
Abstract

Elevation gradients strongly influence the diversity pattern of soil microorganisms. To date, many studies have elucidated the response of soil microbes to changes in elevation gradients. However, the effects of these gradients on the assembly mechanisms and network complexity of rhizospheric microbial communities remain underexplored. To bridge this knowledge gap, this study assessed the response of rhizospheric fungal communities of Pinus hwangshanensis along different elevation gradients in the Huangshan Mountain scenic area with regard to diversity, community composition, and assembly mechanisms using high-throughput amplicon sequencing. The results revealed significant differences in rhizospheric fungal community composition across three elevation gradients. The soil organic matter and pH were the most relevant factors influencing the changes in rhizospheric fungal community composition. The rhizospheric fungal diversity was significantly lower at both low and high elevations compared to the medium elevation. The rhizospheric fungal community assembly showed a more deterministic process at low and high elevations than at the medium elevation, indicating that stronger environmental filtering contributed to reduced fungal diversity at the extremes of the elevation gradient. In addition, rhizospheric pathogens, particularly Dermateaceae, acted as keystone taxa, diminishing the stability of co-occurrence networks at the medium elevation. This study contributes to a more comprehensive understanding of rhizospheric fungal community patterns and their ecological functions along elevation gradients in mountainous regions. [ABSTRACT FROM AUTHOR]

Published
2024
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42. A MEMS-Based Piezoelectric Pump with a Low Frequency and High Flow

Author

Liu, Dehui, Wang, Zhen, Huang, Liang, Wu, Shaojie, Yuan, Dandan, 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, Zu, Qiaohong, editor, Tang, Yong, editor, and Mladenović, Vladimir, editor

Published
2021
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47. Responsive Liquid Crystal Network Microstructures with Customized Shapes and Predetermined Morphing for Adaptive Soft Micro-Optics

Author

Cheng, Ming, primary, Cai, Wenfeng, additional, Wang, Zhenming, additional, Chen, Lei, additional, Yuan, Dandan, additional, Ma, Zongjun, additional, Bai, Ziyan, additional, Kong, Delai, additional, Cen, Mengjia, additional, Xu, Shaolin, additional, Srivastava, Abhishek Kumar, additional, and Liu, Yan Jun, additional

Published
2024
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