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 : Xingming Wu (검색결과 6 건)
- 무료
- 기관 내 무료
- 유료
-
Xiangfan Wu,Xingming Xiao,Zuzhi Tian,Fei Chen 한국자기학회 2016 Journal of Magnetics Vol.21 No.2
Aiming to prepare high performance magnetorheological fluid, firstly, oleic acid and sodium dodecyl benzene sulfonate are chosen as surfactants. And then, the mechanical stirring process including stirring time, stirring temperature and stirring speed are optimized by measuring sedimentation ratio and zero-field viscosity. Finally, the properties of prepared magnetorheological fluid are elaborated. The results indicate that the compounding of oleic acid and sodium dodecyl benzene sulfonate can improve the properties of magnetorheological fluid distinctively, and the optimistic compounding content is 4g:4g or 5g:5g. The surfactants adding orders and the second stirring time have little effect on the properties of magnetorheological fluid, while obviously of the first stirring time, temperature and speed. Moreover, the sedimentation ratio of prepared magnetorheological fluid is less than 5.2% in two weeks, the zero-field viscosity is smaller than 0.6 Pa · s at 20℃, and the maximum yield stress is higher than 50 kPa.
-
Effect of Particle Characteristics and Temperature on Shear Yield Stress of Magnetorheological Fluid
Xiangfan Wu,Xingming Xiao,Zuzhi Tian,Fei Chen,Wang Jian 한국자기학회 2016 Journal of Magnetics Vol.21 No.2
Aiming to improve the shear yield stress of magnetorheological fluid, magnetorheological fluids with different particle characteristics are prepared, and the influence rules of particle mass fraction, particle size, nanoparticles content and application temperature on shear yield stress are investigated. Experimental results indicate that shear yield stress increases approximate linearly with the enhancement of particle mass fraction. Particle size and the nanoparticles within 10% mass fraction can improve the shear yield stress effectively. When the application temperature is higher than 100℃, the shear yield stress decreases rapidly because of thermal expansion and thermal magnetization effect.
-
Identifying Responsive Functional Modules from Protein-Protein Interaction Network
Zikai Wu,Xingming Zhao,Luonan Chen 한국분자세포생물학회 2009 Molecules and cells Vol.27 No.3
Proteins interact with each other within a cell, and those interactions give rise to the biological function and dynamical behavior of cellular systems. Generally, the protein interactions are temporal, spatial, or condition dependent in a specific cell, where only a small part of interactions usually take place under certain conditions. Recently, although a large amount of protein interaction data have been collected by high-throughput technologies, the interactions are recorded or summarized under various or different conditions and therefore cannot be directly used to identify signaling pathways or active networks, which are believed to work in specific cells under specific conditions. However, protein interactions activated under specific conditions may give hints to the biological process underlying corresponding phenotypes. In particular, responsive functional modules consist of protein interactions activated under specific conditions can provide insight into the mechanism underlying biological systems, e.g. protein interaction subnetworks found for certain diseases rather than normal conditions may help to discover potential biomarkers. From computational viewpoint, identifying responsive functional modules can be formulated as an optimization problem. Therefore, efficient computational methods for extracting responsive functional modules are strongly demanded due to the NP-hard nature of such a combinatorial problem. In this review, we first report recent advances in development of computational methods for extracting responsive functional modules or active pathways from protein interaction network and microarray data. Then from computational aspect, we discuss remaining obstacles and perspectives for this attractive and challenging topic in the area of systems biology.
-
Experimental Study on Bond Strength of Deformed Steel Bars in Recycled Glass Aggregate Concrete
Fengchi Wang,Xingming Wu,Chao Guo,Wen Song 대한토목학회 2018 KSCE JOURNAL OF CIVIL ENGINEERING Vol.22 No.9
This paper reports on an investigation of Glass Aggregate (GA) concrete bond behavior. Nine pullout tests were carried out on 16- mm-diameter deformed steel bars eccentrically embedded in GA concrete; rectangular semi beam specimens were designed using equivalent mix proportions with Glass Coarse Aggregate (GCA) and Glass Fine Aggregate (GFA) at replacement levels of 25%, 50%, 75%, and 100%. Analysis of the measured bond-slip relationships indicates mechanisms of bond resistance in the GA similar to Natural Aggregate (NA) concrete and was used to acquire the most accurate and conservative predictions of measured bond strengths. The failure mode of NA and GCA concretes’ bonds with rebar is a split failure, whereas the failure mode of GFA concrete’s bond with rebar changes from a split to a pullout failure with increasing GFA replacement levels. The normalized ultimate bond strengths of the GFA concretes are higher than those of the GCA concretes and the normalized ultimate bond strengths of GCA concrete and the GA replacement level relationship are almost linear. The test results show that reasonable GFA replacement levels can improve the bond behavior of concrete with steel rebar.
-
-
Influence of Temperature on Torque Transmission Stability of Magnetorheological Fluid
Zuzhi Tian,Xiangfan Wu,Xingming Xiao,Li Hao Korean Magnetics Society 2018 Journal of Magnetics Vol.23 No.4
Aiming to obtain the influence mechanism of temperature on the torque transmission stability of magnetorheological fluid, firstly, a magnetorheological transmission device and its test-bed are established, and then, the thermal expansion, temperature pressure effect, heat volatilization, viscosity temperature characteristic, magnetic temperature characteristic and other related temperature characteristics were experimented systematically. The results indicate that the thermal expansion rate of 30 wt% magnetorheological fluid is 6 % and 18 % respectively at 120°C and 220°C, and the working space pressure is 13 kPa when the temperature rises from 32°C to 63°C. The thermal volatilization rate is still lower than 1 % at 200°C for 8 hours. The viscosity of the silicone oil based magnetorheological fluid decreases by 78 % when the temperature increases from 20°C to 240°C, and the saturation magnetization decreased by 6.2 %, 13 % and 23 % respectively at 150°C, 250°C and 350°C. Furthermore, the temperature field distribution experiment shows that the highest temperature region is at the outer diameter of the disk and expands slowly along the radial direction. Moreover, compared with rotational speed, temperature is the main factor affecting the torque fluctuation of magnetorheological fluid.
ScienceON
DBpia연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
