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Your search keyword '"Feng, Taotao"' showing total 143 results
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143 results on '"Feng, Taotao"'

24. Effect of ultra-fine fly ash on the mechanical and shrinkage properties of ultra-high performance concrete

Author

Feng, Taotao (author), Jiang, Jinyang (author), Chu, Hongyan (author), Wang, Liguo (author), Feng, Taotao (author), Jiang, Jinyang (author), Chu, Hongyan (author), and Wang, Liguo (author)

Abstract

This paper reports on a study to determine the possibility of using ultra-fine fly ash (UFA) for partial or total replacement of normal fly ash (NFA) in ultra-high performance concrete (UHPC). Workability, microstructure, porosity, drying shrinkage as well as mechanical properties were comprehensively studied to investigate the influence of UFA on UHPC. The fly ash, which was a compound of NFA and UFA with various mass fractions, had a total content of 30 wt%. The results demonstrated that compressive strength is enhanced if NFA is partially or totally replaced with UFA. Compared to the reference mixture containing 100 wt% NFA, incorporating UFA into UHPC has been shown to improve its workability. Contrarily, adverse effects on drying shrinkage were discovered when NFA is substituted with UFA.

Published
2021

25. Effect of fine aggregate on rheological properties of ultra-high performance concrete（UHPC)

Author

Ju, Siyi (author), Feng, Taotao (author), Wang, Liguo (author), Jiang, Jinyang (author), Ju, Siyi (author), Feng, Taotao (author), Wang, Liguo (author), and Jiang, Jinyang (author)

Abstract

In this paper, four kinds of ecological fine aggregates (manufactured sand, recycled sand, aeolian sand and river sand) were used to prepared UHPC, the effects of the fine aggregates on the workability, rheological properties and mechanical properties of UHPC were studied. The results reveal that the type and content of fine aggregate have an effect on the rheological properties and mechanical strength of UHPC. Under the same mix proportion, the yield stress and plastic viscosity of recycled sand UHPC are higher than those of river sand UHPC, manufactured sand UHPC and aeolian sand UHPC, mainly due to its high water absorption. The high intergranular porosity, high surface area and low fineness modulus of aeolian sand contributes to an increase in yield stress, and high rate into thin and irregular shapes of manufactured sand are the major ingredients which affect the workability of UHPC. The yield stress and plastic viscosity of UHPC decrease with the increase of water-binder ratio, and the gap between the four fine aggregate systems is gradually narrowed. The effects of different fine aggregates on the mechanical properties of UHPC are arranged according to the improvement effect: recycled sand > manufactured sand > river sand > aeolian sand.

Published
2021

48. Identification of novel JMJD2A inhibitor scaffold using shape and electrostatic similarity search combined with docking method and MM-GBSA approach

Author

Feng, Taotao, primary, Chen, Weilin, additional, Li, Dongdong, additional, Lin, Hongzhi, additional, Liu, Fang, additional, Bao, Qichao, additional, Lei, Yonghua, additional, Zhang, Xiaojin, additional, Xu, Xiaoli, additional, Guo, Xiaoke, additional, You, Qidong, additional, and Sun, Haopeng, additional

Published
2015
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49. Recent Advances of Carbon Nanotubes-based Electrochemical Immunosensors for the Detection of Protein Cancer Biomarkers.

Author

Feng, Taotao, Wang, Yue, and Qiao, Xiuwen

Subjects
*CARBON nanotubes, *NANOTUBES, *NANOSTRUCTURED materials synthesis, *ELECTROCHEMICAL analysis, *CHEMICAL synthesis, *CANCER diagnosis, *ELECTRODE potential measurement, *NANOSTRUCTURED materials
Abstract

An efficient electrochemical immunosensor can offer the potential for the detection of protein cancer biomarkers due to its high sensitivity, low cost and possible integration in compact analytical devices. In the last several years, researchers have developed various electrochemical immunoassay methods for the detection of protein cancer biomarkers. Significant progresses have been made in the study of electrochemical immunosensor that based on CNTs, especially in the fields of clinical screening and diagnosis of cancer field. This is because CNTs possess unique structural, mechanical and electronic properties that can decrease over-potential and improve the sensitivity of electrochemical immunosensor. This paper reviews recent advances in the different modified strategies of constructing electrochemical immunosensor based on CNTs for detecting protein cancer biomarkers. CNTs or CNTs hybrid nanomaterials modified electrodes have been firstly introduced as the sensing platforms for the detection of protein cancer biomarkers. On the other hand, CNTs or functional CNTs used as labels in sandwich-type electrochemical immunosensors have been systematically summarized. These novel strategies and the general principles could increase the sensitivity of the immunosensor, thereby overcoming the limitations of its application in the biosensing field. [ABSTRACT FROM AUTHOR]

Published
2017
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