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Nonparametric Model Learning Adaptive Control Method of DC Motor

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Nonparametric Model Learning Adaptive Control Method of DC M...

Searching for complete set of free resource rectangles on FPGA area based on CPTR

2009中国控制与决策会议

作者： Cao Rongmin~1,Hou Zhongsheng~2,Bai Lianping~1 1.school of Automation,Beijing Information science & technology university,Beijing 100192,china 2.school of Electronics and Information Engineering,Beijing Jiaotong university,Beijing 100044,china

＜正＞Nonparametric model learning adaptive control method（NMLAC） presented in this paper is based on new concepts called pseudo-partial-derivatives（PPD） for a class of nonlinear *** structural information,no mathematical model,no training process and no external testing signals are *** unmodelled dynamics do not *** this paper,nonparametric model learning adaptive control（NMLAC） approach of a class of SISO nonlinear discrete-time systems based on linearization of tight format is applied to DC motor rotate speed *** design of controller is model-free,based directly on pseudo-partial-derivatives（PPD） derived on-line from the input and output information of the motor motion model using novel parameter estimation *** experiment examples are provided for real nonlinear systems,which are known to be difficult to model,and control to demonstrate the correctness,effectiveness and advantages of the approaches proposed.

关键词： computer simulation DC motor NMLAC nonlinear systems and stability

来源： cnki会议评论

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cnki会议

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Journal of Shanghai university(English Edition) 2011年第5期15卷 391-396页

作者：柴亚辉沈文枫徐炜民刘觉夫郑衍衡 school of Computer Engineering and science Shanghai University school of Information Engineering East China Jiaotong University

As a coprocessor, field-programmable gate array （FPGA） is the hardware computing processor accelerating the computing capacity of coraputers. To efficiently manage the hardware free resources for the placing of tasks on FPGA and take full advantage of the partially reconfigurable units, good utilization of chip resources is an important and necessary work. In this paper, a new method is proposed to find the complete set of maximal free resource rectangles based on the cross point of edge lines of running tasks on FPGA area, and the prove process is provided to make sure the correctness of this method.

关键词： field-programmable gate array (FPGA) partially dynamic reconfigure maximal free rectangle occupied rectangle

Erosion-Corrosion Behaviors of High Velocity Arc Sprayed Fe-AlCr_3C_2 Coating

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Journal of Wuhan university of technology(Materials science) 2006年第3期21卷 29-31页

作者：徐维普 Welding Institute of Materials science and Engineering Shanghai Jiaotong University Shanghai 200030ChinaNational Key Laboratory for Remanufacturing Beijing 100072China

Iron aluminide intermetallic coatings were prepared from Fe-Al/Cr3C2 cored wires using High Velocity Are Spraying （ HVAS ） technology. Erosion and corrosion properties of HVAS sprayed Fe-Al/Cr3C2 coatings were investigated. Results show that the erosion at impingement angle of 30°is more than that of 90°. The erosion resistance of coatings was enhanced uith the inereaase of temperature. Coatings had a better erosion resislance than substrwles. The erosion changed from ductile behariors to brittle behaviors above 450℃ . At high temperature, the erosion resistances were superior to those at low temperwlure and roonl temperwlure. Cowlings had much higher corrosion properties than substrates. The temperature had a little effect on the corrosion resistance of coatings ; The corrosion losing of cowlings increased slowly with the increase of corrosion time. The HVAS-sprayed Fe-Al/Cr3C2 coatings exhibited a high bond strength and hardness.

关键词： Fe-Al/Cr3C2 cowlings high velocity arc spraying erosion corrosion

Sintering Caβ″/β/α-Al_2O_3 High Temperature Oxygen Sensor

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Journal of Materials science & technology 1995年第5期11卷 345-348页

作者： Yanruo HONG Liansheng LI and Fengge ZHANG(National Laboratory on Solid Electrolytes and Metallurgical Measurements, university of science and technology Beijing, Beijing, 100083, china)(To whom correspondence should be addressed) Beijing Univ of science and Technology Beijing China

An extended-life and ultra-low oxygen sensor has been fabricated by using polycrystalline Caβ″/β/α-Al2O3 as a solid electrolyte. Five reference electrodes CaO+O2, Caβ″/β/α-Al2O3 (powder)+O2,Cr+Cr2O3, Nb+NbO and Mo+MoO2 were tested in order to select a better reference electrode for this sensor. The limit of determining oxygen activity and the extended-life of the sensor were also tested in this study.

关键词： Al2O3 High Temperature Oxygen Sensor Sintering Ca Cr

Anisodamine Inhibits Endotoxin-induced Tissue Factor Expression in Human Endothelial Cells

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Journal of Huazhong university of science and technology(Medical sciences) 2002年第4期22卷 273-275页

作者：阮秋蓉宋建新邓仲端 DepartmentofPathology DepartmentofInfectiousDisease

By study on the effect of anisodamine on lipopolysaccharide- induced expression of tissue factor(TF) in vascular endothelial cells(EC) ,the mechanism of anisodam ine antithrom bosis,as well as in the treatm ent of bacteraemic shock was *** umbilical vein endothelial cells (HUVECs) were cultured by trypsin digestion m *** activity was measured in the lysates of HUVEC by using a single step clotting *** m RNA expression was detected by Northern *** order to evaluate a possible contribution of the nuclear factor (NF) -κB pathway on the effects observed,electrophoretic mobility shift assays(EMSA) were performed using nuclear extracts from HU VECs and NF- κB- binding *** results showed that treatment of HUVEC with L PS resulted in a significant increase in TF *** dose- dependently inhibited L PS- induced upregulation of *** effects was also confirm ed on the level of specific TF m RNA expression by Northern *** ore,EMSA showed that anisodamine com pletely abolished L PS- induced NF-κB DNA binding activity in nuclear ex- tracts from HUVECs treated with L PS together with *** results suggest thataniso- damine counteracts endothelial cell activation by inhibiting L PS- induced TF expression in these *** interference with the NF- κB pathway might- at least in part- contribute to this effect. The ability of anisodamine to counteract L PS effect on endothelial cells m ight be one underlying m echanism explaining its antithrombosis and efficacy in the treatment of bacteraemic shock.

关键词： Anisodamine endothelial cell tissue factor lipopolysaccharide shock nuclear fac- tor-κB

Synthesis of Novel Poly(aryl ether amide)s Containing the Phthalazinone Moiety

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Chinese Chemical Letters 2000年第4期11卷 307-310页

作者： Lin CHENG~1 Xi Gao JIAN~2 (~1Department of Materials science & Engineering, Wuhan Institute of Chemical technology. Wuhan 430074) (Department of Polymer science & Materials. DaLian university of technology. DaLian 1 16012) Wuhan Inst Chem Technol Dept Mat Sci & Engn Wuhan 430074 Peoples R China Dalian Univ Technol Dept Polymer Sci & Mat Dalian 116012 Peoples R China

Two novel heterocyclic diamine monomers: 1,2-dihydro-2-(4-aminophenyl)-4-[4-(4-aminophenoxy)phenyl] (2H)phthalazin-1-one and 1,2-dihydro-2-(4-aminophenyl)-4-[4-(4-aminophenoxy)-3,5-dimethylphenyl](2H)phthalazin-1-one were successfully synthesized from readily available heterocyclic bisphenol-like monomers in two steps in high yield. A series of novel poly(aryl ether amide)s containing the phthalazinone moiety were successfully prepared by the direct polymerization of the novel diamines and aromatic dicarboxylic acids using triphenyl phosphite and pyridine as condensing agents.

关键词： poly(aryl ether amide)s phthalazinone direct polymerization heterocyclic diamine

The GPS-gravimetry boundary value problem

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science china Earth sciences 2005年第3期48卷 398-405页

作者： YU Jinhai1,2 & ZHANG Chuanding2 1. Institute of Geodesy and Geophysics of Chinese Academy of sciences, Wuhan 430077, china 2. Zhengzhou Information Engineering university, Zhengzhou 450052, china 1. Institute of Geodesy and Geophysics of Chinese Academy of sciences 430077 Wuhan China 2. Zhengzhou Information Engineering university 450052 Zhengzhou China

How to determine the earth’s external gravity field with the accuracy of O(T2) by making use of GPS data and gravity values measured on the earth’s surface is dealt with in this paper. There are two main steps: to extend these measured values on the earth’s surface onto the reference ellipsoid at first and then to seek for the integral solution of the external Neumann problem outside the ellipsoid. In addition, the corresponding judging criteria of accuracy to solve the GPS-gravity boundary value problem are established. The integral solution given in the paper not only contains all frequency-spectral information of the gravity field with the accuracy of O(T 2), but is also easily computed. In fact, the solution has great significance for both theory and prac- tice.

关键词： Neumann boundary value problem, integral solution, gravity disturbance.

Multi-level decollement zones and detachment deformation of Longmenshan thrust belt,Sichuan Basin,southwest china

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science china Earth sciences 2008年第S2期51卷 32-43页

作者： TANG LiangJie1,2,3,YANG KeMing4,JIN WenZheng1,2,3,L ZhiZhou4 & YU YiXin1,2,3 1 State Key Laboratory of Petroleum Resource and Prospecting,china university of Petroleum,Beijing 102249,china 2 Key Laboratory for Hydrocarbon Accumulation Mechanism,china university of Petroleum,Ministry of Education,Beijing 102249,china 3 Basin and Reservoir Research Center,china university of Petroleum,Beijing 102249,china 4 Southwest Division Company,SINOPEC,Chengdu 610081,china 1. State Key Laboratory of Petroleum Resource and Prospecting China University of Petroleum Beijing 102249 China 2. Key Laboratory for Hydrocarbon Accumulation Mechanism China University of Petroleum Ministry of Education Beijing 102249 China 3. Basin and Reservoir Research Center China University of Petroleum Beijing 102249 China 4. Southwest Division Company SINOPEC Chengdu 610081 China

As is well known that many decollement layers were developed in the Longmenshan thrust belt,Si-chuan Basin,china. Through field investigation,explanation of seismic profiles and analysis of the balanced sections,we can divide the decollement zones into 3 categories: (1) the deep level decolle-ment zones,including the crust-mantle decollement layer,intracrustal decollement layer,and presinian basal decollement layer. The main structural styles of their deformation are the crust-mantle decoup-ling detachment deformation,the basal ductile shear deformation,etc.; (2) the middle level decollement zones,including the Cambrian-Ordovician decollement layer,the Silurian decollement layer,etc.,the main structural styles of their deformation are the isopachous fold,the angular fold,the saddle struc-ture,and the combination styles of them; and (3) the shallow level decollement zones,including the Xujiahe Formation decollement layer of Upper Triassic and the Jurassic decollement layers,the main structural styles of their deformation are the thrust-nappe tectonic,the pop-up,the triangle zone ,the duplex,etc. Multi-level decollement zones not only made the Longmenshan thrust belt develop many different deformation styles from deep place to shallow place,but also made some local areas have the superimposition of the tectonic deformation apparently. This study indicates that the multi-level de-collement zones have a very important effect on the shaping and evolution of the Longmenshan thrust belt.

关键词： decollement layer structural styles multi-level decollement zones Longmenshan thrust belt

The 13-atom encapsulated gold cage clusters

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Chinese Physics B 2012年第10期21卷 201-205页

作者：张川晖崔航申江 Institute of Applied Physics University of Science and Technology Beijing

The structure and the magnetic moment of transition metal encapsulated in a Au 12 cage cluster have been studied by using the density functional *** results show that all of the transition metal atoms（TMA） can embed into the Au 12 cage and increase the stability of the clusters except *** of them have the I h or O h *** curves of binding energy have oscillation characteristics when the extra-nuclear electrons increase;the reason for this may be the interaction between parity changes of extra-nuclear electrons and Au *** curves of highest occupied molecular orbital-lowest unoccupied molecular orbital（HOMO-LUMO） gap also have oscillation characteristics when the extra-nuclear electrons *** binding energies of many M@Au 12 clusters are much larger than that of the pure Au 13 cluster,while the gaps of some of them are less than that of Au 13,so maybe Cr@Au 12,Nb@Au 12,and W@Au 12 clusters are most stable in *** magnetic calculations,some clusters are quenched totally,but the Au 13 cluster has the largest magnetic moment of 5 μ *** the number of extra-nuclear electrons of the encapsulated TMA is even,the magnetic moment of relevant M@Au 12 cluster is even,and so are the odd ones.

关键词： cluster icosahedral cuboctahedral fullerenes