Search

Your search keyword '"Chen, Wenqiu"' showing total 26 results
Start Over Author "Chen, Wenqiu"
26 results on '"Chen, Wenqiu"'

6. Design and Implementation of an Intelligent Shipborne Terminal System

Author

Chen, Wenqiu, Yao, Rongbin, Ye, Jincai, Tang, Xin, Li, Xiaohuan, Akan, Ozgur, Series Editor, Bellavista, Paolo, Series Editor, Cao, Jiannong, Series Editor, Coulson, Geoffrey, Series Editor, Dressler, Falko, Series Editor, Ferrari, Domenico, Series Editor, Gerla, Mario, Series Editor, Kobayashi, Hisashi, Series Editor, Palazzo, Sergio, Series Editor, Sahni, Sartaj, Series Editor, Shen, Xuemin (Sherman), Series Editor, Stan, Mircea, Series Editor, Xiaohua, Jia, Series Editor, Zomaya, Albert Y., Series Editor, Li, Bo, editor, Shu, Lei, editor, and Zeng, Deze, editor

Published
2018
Full Text
View/download PDF

7. Additional file 1 of Sleep quality and influencing factors and correlation with T-lymphocyte subpopulation counts in patients with pulmonary tuberculosis: a cross-sectional study

Author

Zhang, Hailin, Li, Ao, Jiang, Youli, Chen, Wenqiu, Wang, Jin, Zhang, Peize, Deng, Guofang, Wang, Weiyu, Chen, Jingfang, and Lin, Yi

Abstract

Additional file 1. Patient Admission Survey Assessment Form: A pre-tested admission questionnaire for TB patients, including a survey of patients’ psychological concerns, a SDS scale, a PSQI scale and a NRS 2002 scale.

Published
2023
Full Text
View/download PDF

8. Additional file 2 of Sleep quality and influencing factors and correlation with T-lymphocyte subpopulation counts in patients with pulmonary tuberculosis: a cross-sectional study

Author

Zhang, Hailin, Li, Ao, Jiang, Youli, Chen, Wenqiu, Wang, Jin, Zhang, Peize, Deng, Guofang, Wang, Weiyu, Chen, Jingfang, and Lin, Yi

Abstract

Additional file 2. A subgroup analysis of immunological indicators was performed for the two groups of patients, and all variables with statistically significant differences were included in the figure.

Published
2023
Full Text
View/download PDF

13. A panel of extracellular vesicle long noncoding RNAs in seminal plasma for predicting testicular spermatozoa in nonobstructive azoospermia patients

Author

Xie, Yun, primary, Yao, Jiahui, additional, Zhang, Xinzong, additional, Chen, Jun, additional, Gao, Yong, additional, Zhang, Chi, additional, Chen, Haicheng, additional, Wang, Zelin, additional, Zhao, Zhiying, additional, Chen, Wenqiu, additional, Lv, Linyan, additional, Li, Yanqing, additional, Gao, Fengxin, additional, Xie, Mingzhou, additional, Zhang, Jing, additional, Zhao, Lugang, additional, Wang, Zhu, additional, Liang, Xiaoyan, additional, Sun, Xiangzhou, additional, Zou, Xuenong, additional, Deng, Chunhua, additional, and Liu, Guihua, additional

Published
2020
Full Text
View/download PDF

25. Synthesis and characterization of thermally stable, hydrophobic hyperbranched polyimides derived from a novel triamine.

Author

Li, Qing, Xiong, Haoran, Pang, Long, Li, Qiuhong, Zhang, Ying, Chen, Wenqiu, Xu, Zushun, and Yi, Changfeng

Subjects
THERMAL stability, HYDROPHOBIC surfaces, POLYIMIDES, AMINE synthesis, CHEMICAL bonds, GLASS transition temperature
Abstract

A novel aromatic triamide 1,3,5-tri[4-(4-aminophenoxy)phenyl] benzene (TAPOPB) with prolonged chain segments and ether bonds was successfully prepared through a three-step reaction. Then a series of hyperbranched polyimides (HBPIs) were synthesized using A2 + B3 polycondensation from various commercial aromatic dianhydrides and TAPOPB. The HBPIs showed good solubility, thermal stability with glass transition temperatures (Tg) between 218°C and 320°C, and temperature at 10% weight loss of 502.1–561.7°C in nitrogen atmosphere. Meanwhile, they had decent mechanical properties whose tensile strength and modulus were higher than 72.37 MPa and 1.039 GPa, respectively. Water uptake of less than 0.96% was obtained. The truncation wavelengths of the films were all greater than 400 nm with a good application prospect in UV protective coating. Most contact angles were more than 90°, promising to be used as hydrophobic material. [ABSTRACT FROM AUTHOR]

Published
2015
Full Text
View/download PDF

26. Fabrication and characterization of novel hyperbranched polyimides with excellent organosolubility, thermal and mechanical properties.

Author

Chen, Wenqiu, Li, Quantao, Zhang, Quanyuan, Xu, Zushun, Wang, Xianbao, and Yi, Changfeng

Subjects
POLYIMIDES, SOLUBILITY, ORGANIC chemistry, MECHANICAL properties of polymers, THERMAL properties of polymers
Abstract

ABSTRACT A series of amine-terminated and anhydride-terminated hyperbranched polyimides (HBPIs) were successfully prepared with various commercial dianhydrides and a novel BB′2-type aromatic triamine, 2,4,6-tris[4-(4-aminophenoxy)phenyl]pyridine, with a symmetrical triaryl-substituted pyridine segment and prolonged flexible linkages. The chemical structure of the triamine monomer and the hyperbranched structure of the resulting polymers were verified by Fourier transform infrared spectroscopy and 1H-NMR spectroscopy. The resulting HBPIs, which mainly held an amorphous morphology, exhibited improved organosolubilities in several strong polar aprotic solvents, good heat resistance with glass-transition temperature values in the range 218.6-311.0°C, and excellent thermal stabilities in both N2 and air [the temperature at 5% weight loss ( T5%) in N2 was higher than 529.8°C and the T5% in air was higher than 465.1°C]. The obtained HBPI films also showed outstanding mechanical properties with tensile strength, tensile modulus, and elongation at break values of 86.4-101.3 MPa, 1.73-2.04 GPa, and 5.07-10.67%, respectively; considerable optical transparency; low water absorption; and neutral interface wettability. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41544. [ABSTRACT FROM AUTHOR]

Published
2015
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results