http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Zhenjiang Zhao (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
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.
-
Image post-processed approaches for cavitating flow in orifice plate
Yong Wang,Suguo Zhuang,Houlin Liu,Zhenjiang Zhao,Matevž Dular,Jian Wang 대한기계학회 2017 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.31 No.7
A comprehensive investigation on cavitating flow and cavitation-induced erosion was performed experimentally in an orifice plate system. Three image post-processed approaches were applied to analyze the test data, in order to obtain the cavitation characteristics. The cavitating flow pattern was studied by high speed images. In one cavitation developing period, there could be three distinct cavitation clouds, whereas the second one is not fully developed. The first image post-processing approach was applied to obtain the mean value and standard deviation distribution, which indicate the erosion area may cover almost all the cavitation developing route and the most vulnerable erosion area locates near the cavitation collapse site. It is coincides with the erosion tests analyzed through the pit-count algorithm approach. The cavitation circulation frequency was invested via PSD analysis approach. It shows that the frequency linearly decreasing with decreasing cavitation number. Additionally, the cavitation intensity effect on cavitation erosion was quantitatively studied based. It is found that the damages are strongly enhanced when increasing the flow velocity. Moreover, the growth rate of eroded pits number is actually stepwise instead of linear (similar to our previous work in a venturi tube), which supports the idea that the cloud cavitation collapse is the primary reason for erosion. The present approaches applied here shows good potential ability of investigating cavitating flows and can be utilized for other apparatus.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
