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427 results on '"Duan, Huawei"'

16. Optimization Design of Blades for a Scaled Offshore Floating Wind Turbine

Author

Lin, Jiahuan, Wang, Yangwei, Duan, Huawei, Zhang, Jun, Ceccarelli, Marco, Series Editor, Agrawal, Sunil K., Advisory Editor, Corves, Burkhard, Advisory Editor, Glazunov, Victor, Advisory Editor, Hernández, Alfonso, Advisory Editor, Huang, Tian, Advisory Editor, Jauregui Correa, Juan Carlos, Advisory Editor, Takeda, Yukio, Advisory Editor, and Tan, Jianrong, editor

Published
2022
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19. Exposure to diesel engine exhaust and alterations to the Cys34/Lys525 adductome of human serum albumin

Author

Wong, Jason Y.Y., Imani, Partow, Grigoryan, Hasmik, Bassig, Bryan A., Dai, Yufei, Hu, Wei, Blechter, Batel, Rahman, Mohammad L., Ji, Bu-Tian, Duan, Huawei, Niu, Yong, Ye, Meng, Jia, Xiaowei, Meng, Tao, Bin, Ping, Downward, George, Meliefste, Kees, Leng, Shuguang, Fu, Wei, Yang, Jufang, Ren, Dianzhi, Xu, Jun, Zhou, Baosen, Hosgood, H. Dean, Vermeulen, Roel, Zheng, Yuxin, Silverman, Debra T., Rothman, Nathaniel, Rappaport, Stephen M., and Lan, Qing

Published
2022
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23. Facile Preparation of Chitosan/Carnauba Wax Emulsion‐Based Coatings for Hydrophobic and Oleophobic Cellulose‐Based Food Packaging.

Author

Zou, Yang, Zhang, Yanfen, Zhang, Hui, Cao, Bin, Luo, Zixin, and Duan, Huawei

Subjects
CONTACT angle, FOOD packaging, PACKAGING materials, WATER vapor, ACETIC acid, CHITOSAN
Abstract

Studies have shown that fluoridated reagents for oil and water resistance are harmful to the human bodies and the environment. Consequently, the developments of nontoxic, environmentally friendly, fluorine‐free and degradable materials have received increasing attentions. Here, we introduce a novel method for fabricating a hydrophobic and oleophobic paper‐based packaging material through the application of chitosan/carnauba wax emulsions. These emulsions were prepared via high‐shear homogenization, blending melted carnauba wax with chitosan in acetic acid aqueous solutions. The stable chitosan/carnauba wax emulsion with particle size of 430 nm was prepared at the chitosan concentration of 1.5 wt%, the carnauba wax concentration of 8 wt% and temperature of 85 °C. After 10 g/m2 of chitosan/carnauba wax emulsion was applied to the paper surface, the oil and water resistance of the paper was significantly improved. The experimental results of kit rating value, oil contact angle, Cobb60 value and water contact angle were 9.5 ± 0.6, 86.6 ± 2.1°, 8.90 ± 1.62 g/m2 and 123.5 ± 2.6°, respectively. The application of chitosan/carnauba wax emulsion coating on papers provided a significantly lower water vapour transmission rate (WVTR, 78.45 ± 18.92 g/m2·24 h) and oxygen transmission rate (OTR, 94.26 ± 20.21 g/m2·24 h) as compared to the original paper, which met the needs of strawberry packaging. [ABSTRACT FROM AUTHOR]

Published
2024
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48. Analysis of the Relationship between the Density and Lane-Changing Behavior of Circular Multilane Urban Expressway in Mixed Traffic

Author

Xie, Han, Zhu, Juanxiu, and Duan, Huawei

Subjects
Driverless cars
Abstract

The behavior of changing lanes has a great impact on road traffic with heavy traffic. Traffic flow density is one of the important parameters that characterize the characteristics of traffic flow, and it will also be affected by the behavior of changing lanes, especially in the case of each lane. The penetration of autonomous vehicles can effectively reduce lane-changing behavior. Studying the relationship between traffic flow density and lane-changing behavior under different autonomous vehicle penetration rates is of great significance for describing the operation mechanism of mixed traffic flow and the control of mixed traffic. In this article, we use empirical, simulation, and data-driven methods to analyze the urban expressway of autonomous vehicles with penetration rates of 10%, 20%, 30%, 40%, 50%, 60%, 70%, and 80%, respectively. A simulation experiment was carried out on the road, and data related to density, the rate of changing into the lanes, and the rate of changing out lanes were collected. The analysis of the experimental results found the following: (1) The increase in penetration of autonomous vehicles leads to a certain degree of downward trend in density, the rate of changing into the lanes, and the rate of changing out lanes. (2) Different lanes have different effects on the penetration of autonomous vehicles. In a 4-lane road, the two lanes farther from the entrance and exit are closer in appearance, while the two lanes closer to the entrance and exit are similar. (3) The relationship between density and the rate of changing into the lanes and the rate of changing out lanes shows a linear relationship with the penetration of autonomous vehicles. Although the performance of each lane is slightly different, in general, it can be carried out by a multiple regression model. The given parameter value range is relatively close under different permeability. In summary, autonomous vehicles effectively reduce the traffic density and lane-changing behavior of each lane. There is a linear relationship between traffic flow density and lane-changing behavior with the penetration of autonomous vehicles. The density-lane-changing behavior model proposed in this paper can better describe the relationship between the density of the circular multilane urban expressway and the lane-changing behavior in the case of a large traffic flow in mixed traffic., Author(s): Han Xie [1]; Juanxiu Zhu (corresponding author) [1]; Huawei Duan [1] 1. Introduction The relationship between traffic flow density and lane-changing behavior is very important for understanding the mechanism [...]

Published
2022
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