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RISS 인기검색어
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- 저자 : Yunting Liu (검색결과 2 건)
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Study on Multi-Source Localization of Wireless Sensor Network Based on Quantitative Information
Yunting Liu,Hui Guo,Yuanwei Jing,Siying Zhang 보안공학연구지원센터 2016 International Journal of Future Generation Communi Vol.9 No.4
Against the problem that quantitative localization is concentrated on single-source localization, this paper studies the quantitative multi-source localization methods based on wireless sensor network. Firstly, the log-quantization strategy which reflects the characteristics of acoustic source is proposed. The sensor node transmits the quantized information to base station according to the measurements and log-quantization strategy. Secondly the based station estimates the location of the sources according to the proposed method termed as multiple source localization based on possibilistic C means clustering algorithm. Finally the efficient of the proposed method is verified by the simulation under different parameters. The simulation results show that the proposed method could accurately estimate the location of source. And the proposed method is robust to the packet loss rate.
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Preparation and Performance Study of Self-Cleaning TiO2/Kaolin-Finished Cotton Fabric
Qiang Zhao,Yunting Zhang,Zhenjiang Liu,Huiyan Ma,Yan Li,Xiaoping Gao 한국섬유공학회 2023 Fibers and polymers Vol.24 No.12
TiO2/kaolin was first synthesized by using ultrasound-sol–gel method and then deposited onto the surface of cotton fabrics through two dipping and two rolling process. To investigate the properties of this TiO2/kaolin-finished cotton fabric, TiO2/kaolin/cotton composites were characterized by Fourier transform infrared spectrum and energy dispersive spectrometer, while the surface morphologies of the cotton fabrics were analyzed by field emission scanning electron microscopy. The whiteness, air permeability, breaking strength and elongation of TiO2/kaolin/cotton composites were, respectively, measured and the results showed that all these parameters decreased slightly with the appearance of TiO2/kaolin. The UPF value of TiO2/kaolin/cotton composites was significantly enhanced to 100+ , even if after soaping for 30 times, which might be due to the synergistic effect of kaolin and TiO2. In addition, the performance such as hand feel attributes, softness, smoothness and stiffness were measured by PhabrOmeter, respectively. The stiffness of all finished fabrics was obviously better than that of the unfinished cotton. However, the softness and smoothness of finished fabrics were slightly decreased compared to unfinished cotton. Rhodamine B was used as a test contaminant to qualitatively assess the self-cleaning properties of the TiO2/kaolin-finished cotton fabric. The removal of Rhodamine B indicated that the TiO2/kaolin-finished fabric exhibited excellent photocatalytic properties. This study illustrates the great potential of the low-cost kaolin powder as an efficient finishing agent for the fabric finishing process, and meanwhile provides a novel suggestion for fabric modification.
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