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Direct Control of Rotor Eccentric Displacement for Bearingless Permanent Magnet-type Slice Motor

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Direct Control of Rotor Eccentric Displacement for Bearingle...

第24届中国控制与决策会议

作者： Tingting Zhang 1.2 , Wenquan Zuo 1., Yanbo Lv 1., Xiaodong Sun 1., Huangqiu zhu 1.1. School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 21.0032. Shanghai Institute of Space Power-source, Shanghai 200233

When the bearingless Permanent Magnet-type slice motor (BPMSM) is running, rotor eccentric displacement will happen due to the load disturbance and the stability of rotor suspension will be affected. In the paper, a new method that direct control for rotor eccentric displacement is proposed according to the relationship between rotor radical eccentric displacement and radical suspension force. Then the corresponding control system is designed and simulated. The simulation results show that this method can realize the direct control of the rotor radical eccentric displacement, and the rotor can suspend steadily.

关键词： Bearingless Permanent Magnet-type Slice Motor Direct Displacement Control Mathematics Model Decoupling Control

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光纤水听器测量聚焦换能器声压和温度分布

北京化工大学学报（自然科学版） 2016年第5期43卷 84-88页

作者：赵小策杨平祝海江北京化工大学信息科学与技术学院北京100029 中国计量科学研究院力学与声学计量科学研究所北京100029

为了解决人体中高强度聚焦超声(HIFU)焦点处的温度场分布检测的难题,给出了从声压分布入手探测温度场分布问题的新方法。通过搭建光纤水听器自动扫描系统,利用光纤水听器同时测量仿组织材料(TMM)样本中焦斑区域的声场和温度的分布,探究... 详细信息

为了解决人体中高强度聚焦超声(HIFU)焦点处的温度场分布检测的难题,给出了从声压分布入手探测温度场分布问题的新方法。通过搭建光纤水听器自动扫描系统,利用光纤水听器同时测量仿组织材料(TMM)样本中焦斑区域的声场和温度的分布,探究声压和温度在人体组织中的分布关系。通过实验得出,声压最大处和温度场最高处坐标同为(0 mm,0 mm);-3 d B和-6 d B声束宽度:声压为2.4 mm、3.22 mm,温度为2.44 mm、2.98 mm。实验结果表明,声压和温度的最大值高度重合;仿组织材料样本中超声焦点处的横切面温度分布要比声压分布陡峭,即相比声压分布,温度场的能量分布更加集中,焦点半径更小。

关键词：光纤水听器高强度聚焦超声(HIFU) 温度场声场测量

维普期刊数据库

Distribution and excretion of N-Ile1.Thr2-63-desulfatohirudin in rats

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Distribution and excretion of N-Ile1 Thr2-63-desulfatohirudi...

两岸三地药理学与临床药理学术会议

作者： SU Yun-jiang~1.GUO zhu-han~2 (1. Dalian Institute for Drug Control, Dalian 1.6021. China 2. Department of Pharmacology, Dalian Medical University, Dalian 1.6044, China)

Objective To investigate distribution and excretion of N-Ile1.hr2-63-desulfatohirudin (rH) a re- combinant hirudin newly developed in China,in rats for its development as a novel anticoagulant agent. Methods ELISA was used to determine the rH concentration in related tissues and body *** were collected at 1.,60 and 1.0min respectively,after iv administration of rH 1.0 mg·kg to 3 groups of 5 rats,and ***,bile and feces were collected at pre-selected intervals of time after iv dosing 1.0 mg·kg to 3 groups of 5 rats and *** rH following iv dosing was distributed rapidly,the rH levels in all tissues being found to be the highest at 1. min post-injection,afterwards gradually reduced. The highest concentration of rH was found in blood,the next in lung and heart,the lowest in *** 1. min post dose as an example,the rH contents in tissues were ranked in order of plasma>lung>heart>adi- pose>skeletal muscles>kidney>liver>spleen>*** 1. h-cumulative excretion amount of rH in urine and feces accounted for 0.03 % and 0.001. of administered dose,respectively;the 6 h-cumulative ex- cretion amount in bile was 0.02 % of the *** The rH is distributed mainly in blood circulation system with very low content in other *** drug is excreted from urine,feces and bile of rats in ex- tremely minute amount(only 0.051. dose),suggesting that rH undergoes extensive metabolic elimination in rat body.

关键词： r-hirudin distribution excretion rat

The perturbed solution of sea-air oscillator for ENSO model

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Progress in Natural Science:Materials International 2004年第6期 88-90页

作者： MO Jiaqi 1.*,LIN Wantao 2 and zhu Jiang 2(1. Anhui Normal University,Wuhu 241.00,China 2. Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 1.0029,China) Anhui Normal University Wuhu 241000 China Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China

A class of delayed oscillators and coupled systems to oscillation of El Nio-Southern Oscillation (ENSO) models are considered. Using the perturbed theory and other methods,the exact solution or asymptotic expansions of the solution for ENSO models is obtained and the asymptotic behavior of solution of corresponding problem is studied.

关键词： nonlinear perturbation theory EI Nio-Southern Oscillation model.

A variational iteration method for studying the ENSO mechanism

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Progress in Natural Science:Materials International 2004年第12期 94-96页

作者： MO Jiaqi 1.*, LIN Wantao 2 and zhu Jiang 2(1. Anhui Normal University, Wuhu 241.00, China 2. Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 1.0029, China) AnhuiNormalUniversity Wuhu241000China InstituteofAtmosphericPhysics ChineseAcademyofSciencesBeijing100029China

A coupled system of the El Nio/La Nio Southern Oscillation (ENSO) mechanism is studied. Using the variational iteration theory, the approximations of the solution of an ENSO model is obtained.

关键词： ENSO模型大气物理学耦合系统变分迭代非线性

Fabricating ZnS/carbon nanotubes composite in facile route and its photocatalytical performances

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Fabricating ZnS/carbon nanotubes composite in facile route a...

第五届全国环境催化与环境材料学术会议

作者： Shouai Feng 1.2, Jianghong Zhao 1. Zhenping zhu 1. (1. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, CAS, Taiyuan 030001. China) (2. Graduate School of the Chinese Academy of Sciences, Beijing 1.0039, PR China)

Through modulating experiment conditions, well fined ZnS/CNTs composites was synthesized by dropwise adding Zn（NO3）2 solution into mixture CNTs and Na2S solution and refluxing for 1.h. The prepared products were characterized by transmission electron microscopy （TEM）, selected area electron diffraction （SAED）, X-ray diffraction （XRD） and Brunauer-Emmett-Teller （BET）. It is found that CNTs act as framework in the composites and ZnS NCs are anchored on the surface of CNTs or fill into the aperture of CNTs. The ZnS NCs are well crystalline cubic structure and their diameters are about 5 nm. The photocatalytic activity of ZnS nanocrystal and ZnS/CNTs composite were evaluated by methylene blue （MB） degradation through UV-vis spectroscopy measurements. The result shows that CNTs can effectively promote the photocatalytic activity of ZnS NCs.

关键词： Zinc Sulfide carbon nanotubes compostie photocatalytic ability

Efficient 4-round zero-knowledge proof system for NP

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Progress in Natural Science:Materials International 2002年第12期12卷 70-74页

作者： ZHAO Yunlei and zhu Hong(1. Department of Computer Science, City University of Hong Kong, China 2. Department of Computer Science, Fudan University, Shanghai 200433, China) Fudan Univ Dept Comp Sci Shanghai 200433 Peoples R China City Univ Hong Kong Dept Comp Sci Hong Kong Hong Kong Peoples R China

A 4-round zero-knowledge interactive proof system for NP (Non-deterministic Polynomial) is presented when assuming the existence of one-way permutations and collision-free hash functions. This construction is more efficient than the original construction of 5-round zero-knowledge proof system for NP. The critical tools used in this paper are: zap, hash-based commitment scheme and non-interactive zero-knowledge.

关键词： zero-knowledge proof system witness indistinguishable zap non-interactive zero-knowledge bit commitment.

Present random computations in a uniform way

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Progress in Natural Science:Materials International 2002年第11期 80-82页

作者： ZHAO Yunlei and zhu Hong(1. Department of Computer Science, City University of Hong Kong, China 2. Department of Computer Science, Fudan University, Shanghai 200433, China) Department of Computer Science，City University of Hong Kong，China Department of Computer Science，Fudan University，Shanghai 200433，China Department of Computer Science，Fudan University，Shanghai 200433，China

Some equivalent definitions for PP are introduced, which allows us to present the randomized complexity ctassses RP, NP, PP, BPP in a uniform format.

关键词： RP NP BPP PP computational complexity probabilistic Turing machine.

LOI of IGF2 Is Associated with Esophageal Cancer and Linked to Methylation status of IGF2 DMR rather than H1. CTCF binding region

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LOI of IGF2 Is Associated with Esophageal Cancer and Linked ...

江苏省遗传学会第七届二次代表大会暨学术研讨会

作者： 1.HANG Feng ,1.2*FAN Hong, 1.u WeiIfang, 1.2ZHAO zhu-Jiang (1. Key Laboratory of Developmental genes and Human diseases, Ministry of Education, Southeast University, 21.009, Nanjing 2. Department of Genetics & Developmental Biology,The School of Basic Medical Sciences ,Southeast University, 21.009)

＜正＞Epigenetic alterations in human cancers include global DNA hypomethylation, gene hypomethylation and promoter hypermethylation, and loss of imprinting （LOI）.Insulin-like growth

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