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| 1 | Characteristics of motorized spindle supported by active magnetic bearings显示文摘A motorized spindle supported by active magnetic bearings(AMBs) is generally used for ultra-high-speed machining. Iron loss of radial AMB is very great owing to high rotation speed, and it will cause severe thermal deformation. The problem is particularly serious on the occasion of large power application, such as all electric aero-engine. In this study, a prototype motorized spindle supported by five degree-of-freedom AMBs is developed. Homopolar and heteropolar AMBs are independently adopted as radial bearings. The influences of the two types of radial AMBs on the dynamic characteristics of the motorized spindle are comparatively investigated by theoretical analysis, test modal analysis and actual operation of the system. The iron loss of the two types of radial AMBs is analyzed by finite element software and verified through run-down experiments of the system. The results show that the structures of AMB have less influence on the dynamic characteristics of the motorized spindle. However, the homopolar structure can effectively reduce the iron loss of the radial AMB and it is useful for improving the overall performance of the motorized spindle. | Xie Zhenyu Yu Kun Wen Liantang Wang Xiao Zhou Hongkai | 2014 | Chinese Journal of Aeronautics2014，27，6： | 6 |
| 2 | THE RESEARCH OF GRADATION FUSION ALGORITHM BASED ON MULTISENSOR ASYNCHRONOUS SAMPLING SYSTEM显示文摘This letter explores the distributed multisensor dynamic system, which has uniform sampling velocity and asynchronous sampling data for different sensors, and puts forward a new gradation fusion algorithm of multisensor dynamic system. As the total forecasted increment value between the two adjacent moments is the forecasted estimate value of the corresponding state increment in the fusion center, the new algorithm models the state and the forecasted estimate value of every moment. Kalman filter and all measurements arriving sequentially in the fusion period are employed to update the evaluation of target state step by step, on the condition that the system has obtained the target state evaluation that is based on the overall information in the previous fusion period. Accordingly, in the present period, the fusion evaluation of the target state at each sampling point on the basis of the overall information can be obtained. This letter elaborates the form of this new algorithm. Computer simulation demonstrates that this new algorithm owns greater precision in estimating target state than the present asynchronous fusion algorithm calibrated in time does. | Wen Chenglin Zhang Liantang Ge Quanbo | 2005 | Journal of Electronics(China)2005，22，5： | 3 |
| 3 | Oestrogen receptor‐mediated expression of Olfactomedin 4 regulates the progression of endometrial adenocarcinoma显示文摘 | Chao Duan Xubin Liu Shuang Liang Zheng Yang Meng Xia Liantang Wang Shangwu Chen Li Yu | 2014 | J. Cell. Mol. Med2014，，5： | 1 |
| 4 | Olfactomedin 4 Is a Marker for Progression of Cervical Neoplasia显示文摘 | Li Yu Mian He Zheng Yang Guidong Chen Mengzhen Li Liantang Wang Shangwu Chen | 2011 | International Journal of Gynecological Cancer2011，，2： | 1 |
| 5 | Expression of toll-like receptor 4 is down-regulated during progression of cervical neoplasia显示文摘 | Li Yu Liantang Wang Mengzhen Li Juemin Zhong Zhuo Wang Shangwu Chen | 2010 | Cancer Immunology Immunotherapy2010，，7： | 1 |
| 6 | Expression of toll-like receptor 4 is down-regulated during progression of cervical neoplasia显示文摘 | Li Yu Liantang Wang Mengzhen Li Juemin Zhong Zhuo Wang Shangwu Chen | 2010 | Cancer Immunology Immunotherapy2010，，7： | 1 |
| 7 | Down-Regulation of miR-183 Promotes Migration and Invasion of Osteosarcoma by Targeting Ezrin显示文摘 | Junfeng Zhu Yupeng Feng Zunfu Ke Zheng Yang Junyi Zhou Xiaorong Huang Liantang Wang | 2012 | The American Journal of Pathology2012，，6： | 1 |
| 8 | Principle and Approach of Boundary Extraction Based on Particle Motion in Quantum Mechanics 显示文摘 | Lou Liantang Ding Mingyue | 2007 | Optical Engineering2007，46，2： | 1 |
| 9 | Algorithms for degree-constrained Euclidean Steiner minimal tree显示文摘A new problem of degree-constrained Euclidean Steiner minimal tree is discussed,which is quite useful in several fields.Although it is slightly different from the traditional degree-constrained minimal spanning tree,it is also NP-hard.Two intelligent algorithms are proposed in an attempt to solve this difficult problem.Series of numerical examples are tested,which demonstrate that the algorithms also work well in practice. | Zhang Jin Ma Liang Zhang Liantang | 2008 | Journal of Systems Engineering and Electronics2008，19，4： | 1 |
| 10 | Scientific Advances and Weather Services of the China Meteorological Administration’s National Forecasting Systems during the Beijing 2022 Winter Olympics显示文摘Since the Beijing 2022 Winter Olympics was the first Winter Olympics in history held in continental winter monsoon climate conditions across complex terrain areas,there is a deficiency of relevant research,operational techniques,and experience.This made providing meteorological services for this event particularly challenging.The China Meteorological Administration(CMA)Earth System Modeling and Prediction Centre,achieved breakthroughs in research on short-and medium-term deterministic and ensemble numerical predictions.Several key technologies crucial for precise winter weather services during the Winter Olympics were developed.A comprehensive framework,known as the Operational System for High-Precision Weather Forecasting for the Winter Olympics,was established.Some of these advancements represent the highest level of capabilities currently available in China.The meteorological service provided to the Beijing 2022 Games also exceeded previous Winter Olympic Games in both variety and quality.This included achievements such as the“100-meter level,minute level”downscaled spatiotemporal resolution and forecasts spanning 1 to 15 days.Around 30 new technologies and over 60 kinds of products that align with the requirements of the Winter Olympics Organizing Committee were developed,and many of these techniques have since been integrated into the CMA’s operational national forecasting systems.These accomplishments were facilitated by a dedicated weather forecasting and research initiative,in conjunction with the preexisting real-time operational forecasting systems of the CMA.This program represents one of the five subprograms of the WMO’s high-impact weather forecasting demonstration project(SMART2022),and continues to play an important role in their Regional Association(RA)II Research Development Project(Hangzhou RDP).Therefore,the research accomplishments and meteorological service experiences from this program will be carried forward into forthcoming highimpact weather forecasting activities.This article provides an overview and assessment of this program and the operational national forecasting systems. | Guo DENG Xueshun SHEN Jun DU Jiandong GONG Hua TONG Liantang DENG Zhifang XU Jing CHEN Jian SUN Yong WANG Jiangkai HU Jianjie WANG Mingxuan CHEN Huiling YUAN Yutao ZHANG Hongqi LI Yuanzhe WANG Li GAO Li SHENG Da LI Li LI Hao WANG Ying ZHAO Yinglin LI Zhili LIU Wenhua GUO | 2024 | Advances in Atmospheric Sciences2024，41，5： | 0 |
| 11 | A Method for Solving the Inverse Scattering Problem for Shape and Impedance of Crack显示文摘The inverse problem considered in this paper is to determine the shape and the impedance of crack from a knowledge of the time-harmonic incident field and the corresponding far field pattern of the scattered waves in two-dimension.The combined single-and double-layer potential is used to approach the scattered waves.As an important feature,this method does not require the solution of u and δu/δv at each iteration.An approximate method is presented and the convergence of this method is proven.Numerical examples are given to show that this method is both accurate and simple to use. | Ali Yang Liantang Wang Xiaohua Li | 2013 | Numerical Mathematics(Theory,Methods and Applications)2013，6，2： | 0 |
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