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| 1 | Preparation of Mullite Whiskers and Their Enhancement Effect on Ceramic Matrix Composites显示文摘Mullite whiskers were facilely prepared by sintering kyanite at high temperature, with the addition of AlF3·3H2O. The as-prepared whiskers have been characterized systematically in terms of phase composition, morphology, and structure. Results showed that the morphology and size of mullite whiskers were strongly depended on the content of AlF3·3H2O and sintering temperature. At temperatures in the range of 1 100 to 1 500 ℃ with 4 wt% addition of AlF3·3H2O, the well-shaped mullite whiskers were obtained. For an instance, the mullite whiskers with 5-10 μm in length and 0.1-0.2 μm in cross-section could be formed at 1 400 ℃, with 4 wt% addition of AlF3·3H2O. Moreover, results showed that the addition of mullite whiskers into ceramic matrix enhanced its fracture toughness significantly. | 张锦化 WU Hongdan ZHANG Suxin Yu Jishun 侯书恩 | 2013 | Journal of Wuhan University of Technology(Materials Science)2013，28，3： | 9 |
| 2 | Illite Crystallinity Mapping of Very Low Grade Metamorphism of Triassic Metapelites in the Zoigê Area,Western China显示文摘X-ray diffraction methods for estimating the metamorphic grade of diagenetic,anchizone and epizone in metapelites are reviewed and applied to samples from a 7000m+ borehole in western China and surface samples from the surrounding Zoigê area.Kübler's illite crystallinity(IC) measurements provide more consistent results than calculated values of percentage of illite in the I/S mixed layers and percentage of I/S mixed layers.Down-borehole IC values display a typical burial metamorphic relationship between stratigraphic level and IC.A method for preparing very low grade metamorphic maps is described,and isograds plotted on a regional geological map at selected values of IC,delineating a high temperature diagenetic zone,an anchizone,and an epizone.The map shows that IC values are controlled by stratigraphic level in the north of the study area(i.e.burial metamorphism),and proximity to an igneous intrusive body in the south(i.e.contact metamorphism). | TANG Yan SANG Longkang YUAN Yanming YU Jishun ZHANG Yunpeng QI Xianmao YANG Yunlong | 2012 | Acta Geologica Sinica(English Edition)2012，86，1： | 6 |
| 3 | Water, heat fluxes and water use efficiency measurement and modeling above a farmland in the North China Plain显示文摘Net radiation (Rn), water vapor flux (LE), sensible heat flux (Hs) and soil heat flux (G)were measured above a summer maize field with the eddy-covariance technique, simulation and analysis of water, heat fluxes and crop water use efficiency were made with the RZ-SHAW model at the same time in this study. The results revealed significant diurnal and seasonal variability of water vapor flux for summer maize. Most part of Rn was consumed by the evapotranspiration of the summer maize. The proportion of water vapor flux to net radiation ((LE/Rn) increased with the crop development and peaked around milk-filling stage with a value of 60%, a slightly lower than that obtained by the RZ-SHAW model. Daily evapotranspiration estimated by the model agreed with the results measured with the eddy-covariance technique, indices of agreement (IA) for hourly water vapor fluxes simulated and measured were above 0.75, root mean square errors (RMSE) were no more than 1.0. Diurnal patterns of Hs showed the shape of inverted 'U' shifted to the forenoon with a maximum value around 11:30 (Beijing time), while LE exhibited an inverted 'V' with a maximum value at around 13:00, about an hour later than Hs. Diurnal change of CO2showed an asymmetrical 'V' curve and its maximal rates occurred at about 11:30. Variations of water use efficiency during the phonological stages of the summer maize showed a rapid increase with the photosynthetic photon flux density (PPFD) after sunrise, a state of equilibrium around 10:00 followed a decrease. Maximum values of water use efficiency were 24.3, and its average value ranged from 7.6 to 10.3 g kg-1. | QIN Zhong, YU Qiang, XU Shouhua, HU Bingmin, SUN Xiaomin, LIU Enmin, WANG Jishun, YU Guirui & ZHU Zhilin Ecology academy, College of Life Science, Zhejiang University, Hangzhou 310029,China Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China College of Science, Zhejiang University, Hangzhou 310029, China | 2005 | Science China Earth Sciences2005，48，z1： | 5 |
| 4 | Refractive Index and Strain Sensitivities of a Long Period Fiber Grating显示文摘CO2 激光照耀在所有固体 photonic bandgap 纤维之上制作的一个长时期纤维栅栏(LPFG ) 被调查,并且它的回声波长在有 15 dB 的调整深度和 2.6 nm 的 3-dB 带宽的 1335.76 nm。我们学习了它的种类,温度,和索引传感器特征, 0.992 pm/ 的种类敏感被使用获得线性适合,并且在折射索引和波长之间的关系服从了二次的功能的分发。另外,我们证明它的温度反应是相对感觉迟钝的(21.51 pm/ | Quandong Huang Yongqin Yu Zhilong Ou Xue Chen Jishun Wang Peiguang Yan Chenlin Du | 2014 | Photonic Sensors2014，4，1： | 2 |
| 5 | Phase Structure, Microstructure and Electrical Properties of K_xNa_((1-x))NbO_3 Piezoelectric Ceramics with Different K/Na Ratio显示文摘The K_xNa_((1-x))NbO_3(x=0.45, 0.46, 0.47, 0.48, 0.49, 0.50) lead-free piezoelectric ceramics was fabricated by conventional solid-state sintering method. It was found that the ratio of alkaline metal would affect the microstructure, bulk density, and optimum sintering temperatures of ceramics. Meanwhile, the electrical properties were also influenced by modulating the K/Na ratio, exhibiting corresponding composition-dependent properties. The optimum electrical properties of K_xNa_((1-x))NbO_3 such as piezoelectric constant d_(33) = 115 pC/N, mechanical quality factor Q_m = 20, Curie temperature Tc = 365 ~oC, ε_(33)~T/ε_0= 588.1, dielectric loss tan δ = 0.024, bulk density(ρ) = 3.08 g/cm^3, remnant polarization(P_r) = 8.87 μC/cm^2 and coercive field(Ec) = 13.79 kV/cm were obtained at x = 0.46. | 陈建超 WU Wei SU Shi YU Jishun LEI Xinrong 赵培 | 2019 | Journal of Wuhan University of Technology(Materials Science)2019，34，1： | 2 |
| 6 | Industrial Safety and Dust Control显示文摘 | Jiang Juhui Yu Jishun Li Wu | 2001 | 27(12):16-202001，27，12： | 1 |
| 7 | Temperature Insensitive Bending Sensor Based on In-Line Mach-Zehnder Interferometer显示文摘基于 Mach-Zehnder 干涉仪把传感器弄弯的简单、紧缩的纤维被建议。有一段 10 公里的 photonic 水晶纤维(PCF ) 被与二常规单个模式纤维折叠空气洞由组成拼接一弯曲的所有纤维传感器。0.53 nm/m 的敏感 < 啜 class= “ a-plus-plus ” > 1 从 0 ~ 8.514 m 为弯曲范围在 1586 nm 被获得 < 啜 class= “ a-plus-plus ” > 1 。温度敏感是很低的。测量错误由于温度效果是大约 8. | Xue CHEN Yongqin YU Xiaomei XU Quandong HUANG Zhilong OU Jishun WANG Peiguang YAN and Chenlin DU | 2014 | Photonic Sensors2014，4，3： | 1 |
| 8 | Effect of relationship benefits on satisfaction with an e-commerce communication tool显示文摘 | Yuhua Cui Jishun Niu Mengqi Yu | 2016 | 经济管理学刊(中英文版)2016，5，1： | 0 |
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