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| 1 | Fault detection for nonlinear networked control systems based on fuzzy observer显示文摘Security and reliability must be focused on control systems firstly, and fault detection and diagnosis (FDD) is the main theory and technology. Now, there are many positive results in FDD for linear networked control systems (LNCSs), but nonlinear networked control systems (NNCSs) are less involved. Based on the T-S fuzzy-modeling theory, NNCSs are modeled and network random time-delays are changed into the unknown bounded uncertain part without changing its structure. Then a fuzzy state observer is designed and an observer-based fault detection approach for an NNCS is presented. The main results are given and the relative theories are proved in detail. Finally, some simulation results are given and demonstrate the proposed method is effective. | Zhangqing Zhu Xiaocheng Jiao | 2012 | Journal of Systems Engineering and Electronics2012，23，1： | 6 |
| 2 | EXPERIMENTAL INVESTIGATION OF TIP CLEARANCE FLOW FOR AN AXIAL FLOW FAN ROTOR显示文摘在一个轴的通风迷的尖端区域的流动域与在设计的系统调节的粒子图象速度计(PIV ) 被调查。有三个不同尖端清理的流动地分别地在三架不同环绕的飞机上被调查。锁 Thephase 的平均方法被用来调查产生和一个尖端漏旋涡的发展。从 PIV 系统的结果从一张粒子动力学风速表(PDA ) 与那相比是系统。两个数据在好同意,为转子的尖端漏旋涡的结构被说明。一个漏旋涡的特征在速度向量和旋涡的轮廓被描述。漏旋涡的摇摆和旋涡的位置详细被调查,它解释在数字模拟之间的差异, PDAexperimental 结果到某个程度。在不同时间的尖端漏旋涡的中心 loci 和漏旋涡的吝啬的中心 loci 特别地被显示。最后,当适当地解释了时,由试验性的测量的尖端漏旋涡的轨道与从为高速度和高压的压缩机和汽轮机的存在模型的预言相比。一个好协议被获得。 | GUO Qiang ZHU Xiaocheng DU Zhaohui | 2006 | Chinese Journal of Mechanical Engineering2006，19，3： | 5 |
| 3 | EXPERIMENTAL INVESTIGATION FOR THE EFFECT OF ROTATION ON THREE-DIMENSIONAL FLOW FIELD IN FILM-COOLED TURBINE显示文摘An experimental investigation of three-dimensional flow field in a film-cooled turbine model is carried out by using particle image velocimeter (PIV) in a low-speed wind tunnel. The effects of different blowing ratios (M=1.5, 2) on the flow field are studied. The experimental results reveal the classical phenomena of the formation of kidney vortex pair and secondary flow in wake region behind the jet hole. And the changes of the kidney vortex pair and the wake at different locations away from the hole on the suction and pressure sides are also studied. Compared with the flow field in stationary cascade, there are centrifugal force and Coriolis force existing in the flow field of rotating turbine, and these forces bring the radial velocity in the jet flow. The effect of rotation on the flow field of the pressure side is more distinct than that on the suction side from the measured flow fields in Y-Z plane and radial velocity contours. The increase of blowing ratio makes the kidney vortex pair and the secondary flow in the wake region stronger and makes the range of the wake region enlarged. | YUAN Feng ZHU Xiaocheng DU Zhaohui | 2007 | Chinese Journal of Mechanical Engineering2007，20，1： | 2 |
| 4 | Experimental and numerical investigation of the flow field in the tip region of an axial ventilation fan显示文摘 | Zhu Xiaocheng Lin Wanlai Du Zhaohui | 2005 | Journal of Fluid Engineering2005，127，3： | 1 |
| 5 | The Solar Upper Transition Region Imager(SUTRI)Onboard the SATech-01 Satellite显示文摘The Solar Upper Transition Region Imager(SUTRI)onboard the Space Advanced Technology demonstration satellite(SATech-01),which was launched to a Sun-synchronous orbit at a height of~500 km in 2022 July,aims to test the on-orbit performance of our newly developed Sc/Si multi-layer reflecting mirror and the 2k×2k EUV CMOS imaging camera and to take full-disk solar images at the Ne VII 46.5 nm spectral line with a filter width of~3 nm.SUTRI employs a Ritchey-Chrétien optical system with an aperture of 18 cm.The on-orbit observations show that SUTRI images have a field of view of~416×416 and a moderate spatial resolution of~8″without an image stabilization system.The normal cadence of SUTRI images is 30 s and the solar observation time is about16 hr each day because the earth eclipse time accounts for about 1/3 of SATech-01's orbit period.Approximately15 GB data is acquired each day and made available online after processing.SUTRI images are valuable as the Ne VII 46.5 nm line is formed at a temperature regime of~0.5 MK in the solar atmosphere,which has rarely been sampled by existing solar imagers.SUTRI observations will establish connections between structures in the lower solar atmosphere and corona,and advance our understanding of various types of solar activity such as flares,filament eruptions,coronal jets and coronal mass ejections. | Xianyong Bai Hui Tian Yuanyong Deng Zhanshan Wang Jianfeng Yang Xiaofeng Zhang Yonghe Zhang Runze Qi Nange Wang Yang Gao Jun Yu Chunling He Zhengxiang Shen Lun Shen Song Guo Zhenyong Hou Kaifan Ji Xingzi Bi Wei Duan Xiao Yang Jiaben Lin Ziyao Hu Qian Song Zihao Yang Yajie Chen Weidong Qiao Wei Ge Fu Li Lei Jin Jiawei He Xiaobo Chen Xiaocheng Zhu Junwang He Qi Shi Liu Liu Jinsong Li Dongxiao Xu Rui Liu Taijie Li Zhenggong Feng Yamin Wang Chengcheng Fan Shuo Liu Sifan Guo Zheng Sun Yuchuan Wu Haiyu Li Qi Yang Yuyang Ye Weichen Gu Jiali Wu Zhe Zhang Yue Yu Zeyi Ye Pengfeng Sheng Yifan Wang Wenbin Li Qiushi Huang Zhong Zhang | 2023 | Research in Astronomy and Astrophysics2023，23，6： | 1 |
| 6 | Aerodynam- ic optimization for low pressure turbine 显示文摘 | Hongtao Wang Xiaocheng Zhu Zhaohui Du | 2010 | International Communications in Heat and Mass Transfer2010，37，： | 1 |
| 7 | Experimental and numerical investigation of the flow field in the tip region of an axial ventilation fan显示文摘 | Zhu Xiaocheng Lin Wanlai Du Zhaohui | 2005 | Journal of Fluids Engineering2005，127，2： | 1 |
| 8 | Wind turbine aerodynamics and loads control in wind shear flow显示文摘 | Shen Xin Zhu Xiaocheng Du Zhaohui | 2011 | Energy2011，36，2011： | 1 |
| 9 | Genome-wide identification and evolutionary analysis of the plant specific SBP-box transcription factor family显示文摘 | An-Yuan Guo Qi-Hui Zhu Xiaocheng Gu Song Ge Ji Yang Jingchu Luo | 2008 | Gene2008，，1： | 1 |
| 10 | An insight into the separate flow and stall delay for HAWT显示文摘 | Yu Guohua Shen Xin Zhu Xiaocheng | 2011 | Renewable Energy2011，36，1： | 1 |
| 11 | Experimental and numerical investigation of the flow field in the tip region of an axial ventilation fan显示文摘 | ZHU Xiaocheng LIN Wanlai DU Zhaohui | 2005 | Journal of Fluid Engineering2005，127，3： | 1 |
| 12 | Experimentaland numerical investigation of the flow field in the tipregion of an axial ventilation fan显示文摘 | Zhu Xiaocheng LinWanlai Du Zhaohui | 2005 | Journal of FluidEngineering2005，127，3： | 1 |
| 13 | Experi- mental and numerical investigation of the flow field in the tip region of an axial ventilation fan显示文摘 | ZHU Xiaocheng LIN Wanlai DU Zhaohui | 2005 | Journal of Fluids Engineering2005，127，2： | 1 |
| 14 | Wind TurbineAerodynamics and Loads Control in Wind Shear Flow 显示文摘 | SHEN Xin ZHU Xiaocheng DU Zhaohui | 2011 | Energy2011，36，3： | 1 |
| 15 | Fault detection based on H_∞ states observer for networked control systems显示文摘The influence of random short time-delay to networked control systems (NCS) is changed into an unknown bounded uncertain part. Without changing the structure of the system, an H∞ states observer is designed for NCS with short time-delay. Based on the designed states observer, a robust fault detection approach is proposed for NCS. In addition, an optimization method for the selection of the detection threshold is introduced for better tradeoff between the robustness and the sensitivity. Finally, some simulation results demonstrate that the presented states observer is robust and the fault detection for NCS is effective. | Zhu Zhangqing Jiao Xiaocheng | 2009 | Journal of Systems Engineering and Electronics2009，20，2： | 1 |
| 16 | Experimental and numerical investigation of the flow field in the tip region of an axial ventilation fan显示文摘 | ZHU Xiaocheng LIN Wanlai DU Zhaohui | 2005 | ASME J Fluids Eng2005，127，： | 1 |
| 17 | Experi mental and numerical investigation of the flow field in the tip region of an axial ventilation fan显示文摘 | ZHU Xiaocheng LIN Wanlai DU Zhaohui | 2005 | J Fluid Eng2005，127，3： | 1 |
| 18 | Genetic approach to track neural cell fate decisions using human embryonic stem cells显示文摘与他们房间在身体打经历无限的自强并且区分进所有的能力,人的胚胎的干细胞(hESCs ) 在人的房间治疗保持大诺言。然而,为容易识别并且孤立现场导出 hESC 的房间有有限工具。追踪导出 hESC 的神经祖先房间(NPC ) ,我们把相应再结合用于敲门在里面 mCherry 基因进 hESCs 的 Nestin 地点。这便于与 mCherry 的 Nestin 积极神经祖先房间的基因标记。我们的记者系统在 vitro (胚胎植物或动物身体) 并且在 vivo (teratomas ) 从 hESCs 启用神经正式就职的可视化。这个系统也基于紧张允许不同神经 subpopulations 的鉴定我们的荧光灯记者。在这上下文, mCherry 表示的高水平为神经祖先显示出丰富,当更低的 mCherry 与更多的承诺的神经状态相应时。mCherry 的联合有房间表面抗原染色的高表示启用了导出 hESC 的 NPC 的进一步的丰富。这些 mCherry+ NPC 能在文化被扩展,他们的区别导致了与 Nestin 表示的损失一致的 mCherry 的一条下面规定。因此,我们发展了一荧光灯能被用来跟踪 hESCs 的神经区别事件的记者系统。 | Xuemei Fu Zhili Rong Shengyun Zhu Xiaocheng Wang Yang Xu Blue B. Lake | 2014 | Protein & Cell2014，5，1： | 1 |
| 19 | EXPERIMENTAL INVESTIGATION OF ROTATING STALL FOR A LOW-SPEED CENTRIFUGAL COMPRESSOR显示文摘Unsteady flows and rotating stall of a low-speed centrifugal compressor are investigated by measuring vaneless diffuser wall static pressure fluctuation and internal flow fields at different small flow fluxes.During the experiment,firstly the real time static pressure fluctuations on the vaneless diffuser shroud at different circumferential and radial position were acquired by high-frequency dynamic pressure transducers.Discrete Fourier transformation analysis and cross-correlation analysis were applied to the experimental results to ascertain the rotating stall beginning operation conditions and stall cells numbers and rotating speed.Secondly,the vaneless diffuser inlet flow angle distribution along diffuser width direction was acquired by single hotwire,which was compared with SENOO's analysis results.At last,the internal flow fields of the centrifugal compressor were investigated with a particle image velocimetry(PIV)system at different small flow fluxes.The flow field development of vaneless diffuser and blade flow passage are given at rotating stall conditions.The experiments enrich the understanding of rotating stall flow phenomenon of the low-speed centrifugal compressor and provide full experiment data for designing high performance centrifugal compressor. | ZHU Xiaocheng GUO Qiang DU Zhaohui CHEN Hua ZHAO Yan | 2008 | Chinese Journal of Mechanical Engineering2008，21，3： | 0 |
| 20 | Design,Fabrication and Assembly of the Solar Upper Transition Region Imager(SUTRI)显示文摘The Solar Upper Transition Region Imager(SUTRI)focuses on the solar transition region to achieve dynamic imaging observation of the upper transition region.In this paper,we report the optical system design,mechanical design,ultrasmooth mirror manufacture and measurement,EUV multilayer film coating,prelaunch installation and calibration for the SUTRI payload at IPOE,Tongji University.Finally,the SUTRI carried by the SATech-01 satellite was successfully set to launch.All functions of this telescope were normal,and the observation results obtained in orbit were consistent with the design. | Zhanshan Wang Jun Yu Runze Qi Chunling He Zhengxiang Shen Li Jiang Weichen Gu Jiali Wu Zhe Zhang Pengfeng Sheng Yifan Wang Yue Yu Zeyi Ye JingJing Xia Yujie Xing Hongfei Jiao Bin Ma Qiushi Huang Zhong Zhang Xianyong Bai Yuanyong Deng Hui Tian Nange Wang Lun Shen Song Guo Lei Jing Xiaobo Chen Yang Gao Xiaocheng Zhu Xiaofeng Zhang Junwang He Qi Shi Shuo Liu Xingzi Bi | 2023 | Research in Astronomy and Astrophysics2023，23，9： | 0 |
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