检索结果-内蒙古大学图书馆

Preparation of Different Lights Irradiated ZnSe/GSH QDs and Their Interaction with BSA

Journal of Wuhan University of technology(Materials Science) 2019年第4期34卷 858-865页

作者： DING Ling LI Shiqian The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and Technology Wuhan 430081China Coal Conversion and New Carbon Materials Hubei Key Laboratory School of Chnemistry and Chemical EngineeringWuhan University of Science and TechnologyWuhan 430081China Key Laboratory of Measurement and Control System for Offshore Environment Fuqing Branch of Fujian Normal UniversityFuqing 350300China

Using L-glutathione(GSH) as a capping agent,Zn Se/GSH quantum dots(QDs) were prepared under microwave irradiation and irradiated under dark, ultraviolet light and incandescent light, respectively. The properties and interaction of different lights irradiated ZnSe/GSH QDs and bovine serum albumin(BSA) were studied systematically. The fluorescence(FL) spectra results reveal that the quenching mechanism are all the static quenching in nature. The quenching constant(Ksv) and binding constant(K) value of different irradiated Zn Se/GSH QDs and BSA all increased with the change of light types from dark to incandescent light and UV light. The number of binding site(n) is close to 1 at different temperatures. The lighting types influence the enthalpy and entropy changes. The Fourier transform infrared(FTIR) spectra indicate that the light induced GSH ligand will facilitate photocatalytic oxidation on the surface of ZnSe/GSH QDs. The circular dichroism(CD)results show that the α-helicity content of BSA decreases from 60.34%, 59.31%, to 58.79% under UV lighting,incandescent lighting and dark conditions. The interaction results of different lights illuminated ZnSe/GSH QDs with BSA by CD spectra method matches well with that by FL and FTIR spectra. That is, the interaction of ZnSe/GSH QDs and BSA from strong to weak is UV light, incandescent light and dark in sequence.

关键词： lights irradiated ZnSe/GSH quantum dots preparation bovine serum albumin interaction thermodynamics

来源：评论

学校读者我要写书评

暂无评论

A VLIW architecture based on shifting register files 26

A VLIW architecture based on shifting register files

引用

IEEE/ACM International Symposium on Microarchitecture (MICRO)

作者： H. Fatih Uğurdağ Christos A. Papachristou Measurement and Control New Technology and System Beijing Key Laboratory of Industrial Process Beijing China

ISBN: (纸本)9780818652806

This paper presents a new technique for software pipelining using the Petri nets. Our technique called the Petri Net Pacemaker (PNP) can create near optimal pipelines with less algorithmic effort than other techniques. The pacemaker is a novel idea which exploits the behavior of Petri nets to model the problem of scheduling operations of a loop body for software pipelining.< >

关键词： Pipeline processing Parallel processing Petri nets Steady-state Pacemakers Processor scheduling Computer science Optimization methods VLIW

来源：评论

学校读者我要写书评

暂无评论

A new Robust Least Squares Support Vector Machine for Regression with Outliers

引用

Procedia Engineering 2011年 15卷 1355-1360页

作者： Lü You Liu Jizhen Qu Yaxin Key Laboratory of Measurement & Control New Technology and System for Industrial Process North China Electric Power University Beijing 102206 China

The least squares support vector machine (LS-SVM) is sensitive to noises or outliers. To address the drawback, a new robust least squares support vector machine (RLS-SVM) is introduced to solve the regression problem with outliers. A fuzzy membership function, which is determined by heuristic method, is assigned to each training sample as a weight. For each data point, firstly a deleted input neighborhood is found when the high-dimension feature space of input is focused on. Then the new field is reformulated after the output is brought in the neighborhood which we have found. The fuzzy membership function (weight) is set according to the distance from the data point to the center of its neighborhood and the radius of the neighborhood, which implies the probability to be an outlier. Two benchmark simulation experiments and analysis are presented to verify that the performance is improved.

关键词： Outlier Robust Weight Least squares support vector machine Regression

来源：评论

学校读者我要写书评

暂无评论

Stochastic distribution control theory applied in superheated steam temperature systems

Stochastic distribution control theory applied in superheate...

引用

Chinese control Conference (CCC)

作者： Jianhua Zhang Fenfang Zhang Guolian Hou Jinfang Zhang Beijing Key Laboratory of Industrial Process Measurement and Control New Technology and System 102206 China

A novel control algorithm is applied to control superheated steam temperature in power plants. Since the disturbances existed in practical processes are probably non-Gaussian, the performance index is constructed by minimizing the entropy and mean value of tracking error besides the constraints on control energy. The optimal control solution is given and applied to control superheated steam temperature in a power plant. The simulation results verify its effectiveness.

关键词： Entropy Temperature control Process control Stochastic processes Temperature distribution Temperature measurement Performance analysis

来源：评论

学校读者我要写书评

暂无评论

Synthesis of Agomelatine by One-pot Catalytic Hydrogenation and Acetylation with NiO

引用

Journal of Wuhan University of technology(Materials Science) 2019年第2期34卷 453-458页

作者： YU Zhijun CHENG Zhengzai XIE Cong ZENG Sheng DENG Haiying LIU Panpan HU Hai LI Guangyao DING Ling Mario Gauthier LI Shiqian School of Medicine Wuhan University of Science and TechnologyWuhan 430065China Non-power Nuclear Technology Research and Development Center Hubei University of Science and TechnologyXianning 437100China The State Key Laboratory of Refractories and Metallurgy(Wuhan University of Science and Technology) Wuhan 430081China Coal Conversion and New Carbon Materials Hubei Key Laboratory School of Chemistry and Chemical EngineeringWuhan University of Science and TechnologyWuhan 430081China Key Laboratory of Measurement and Control System for Offshore Environment Fuqing Branch of Fujian Normal UniversityFuqing 350300China

Nano-NiO and bulk NiO were prepared from Ni(AC)_2·4 H_2O by coordination precipitation using aqueous ammonia and by a solid state reaction, respectively. The nickel oxide particles were characterized by X-ray Diffraction(XRD) and scanning electron microscopy(SEM). The results indicate that nano-sized NiO has a crystal phase with a standard face-centered cubic lattice structure, with a mean particle diameter of about 10 nm. The evaluation of the activity of nickel oxide nanoparticles in the catalytic hydrogenation of 7-methoxy-1-naphthylacetonitrile was carried out. The results demonstrate the efficient synthesis of the title compound by a one-pot catalytic hydrogenation and acetylation with NiO. The NiO nanoparticles displayed superior catalytic activity in the synthesis of agomelatine in the one-pot *** total yield of agomelatine is over 81.8% with a purity of 99.2%, as determined by HPLC. The structure of agomelatine was confirmed by IR, MS, and 1 H NMR analysis.

关键词： nano-NiO homogeneous precipitation method catalytic hydrogenation agomelatine N-[2-(7-Methoxy-1-naphthyl)ethyl]acetamide 7-Methoxy-1-naphthylacetonitrile

来源：评论

学校读者我要写书评

暂无评论

new energy power generation process output complementary and coordinated control

New energy power generation process output complementary and...

引用

2013 International Conference on Vehicle and Mechanical Engineering and Information technology, VMEIT 2013

作者： Gao, Ming-Ming Hou, Jie Zeng, De-Liang Lei, Xiu-Jian Tang, Jun Zhang, Ming-Sheng Beijing Key Laboratory of Measurement and Control New Technology and System for Industrial Process State Key Lab of Alternate Electric Power System With Renewable Energy Sources North China Electric Power University Beijing China Sichuan Baima Circulating Fluidized Bed Exampled Power Limited Liability Company Neijiang China

ISBN: (纸本)9783037858202

In view of the current high rate of abandoned wind, photovoltaic power generation costs and wind-fire bundling mode, in the active power control of the wind of low load operation of motor fluctuations in the fire team leader, the subject in the study of wind power, photovoltaic power generation, power, battery energy storage based on the load response characteristic, design the scheduler, a wind and photovoltaic power plant active power scheduling for equipment, allocation of plant-level optimal load distribution system of the thermal power plant joint scheduling, in order to improve the stability of output of new energy, reduce the energy consumption of the whole network. At the same time, the wind and photovoltaic power plant energy storage system and wind farm output coordination problem is equivalent to a mixed integer programming problem to be solved, to simultaneously determine fans and solar panels and bear the load rate;for thermal power plant load distribution optimization design of the minimum unit involved in strategy reduces the effect of variable load, variable load on set pressure and high temperature parts life. This topic to some extent to improve the wind energy and solar energy utilization, helps to reduce the carbon fuel usage, has certain theoretical and practical significance. © (2013) Trans Tech Publications, Switzerland.

关键词： Wind power

来源：评论

学校读者我要写书评

暂无评论

Application of rough set technology to control information system of CFBB

引用

2013 International Conference on Energy Research and Power Engineering, ERPE 2013

作者： Gao, Ming Min Hou, Jie Zeng, De Liang Lei, Xiu Jian Wu, Yu Ping Zhang, Ming Sheng Beijing Key Laboratory of Measurement and Control New Technology and System for Industrial Process State Key Lab of Alternate Electric Power System With Renewable Energy Sources North China Electric Power University 102206 China Sichuan Baima Circulating Fluidized Bed Exampled Power Limited Liability Company 641000 China

ISBN: (纸本)9783037857588

Circulating fluidized bed boiler(CFBB) is a distributed parameter, nonlinear, time-varying and multivariate coupling system. Considering these, the core identity of Rough Set and the theory of self-organizing neural fuzzy inference system is applied to the control system of CFBB. The system is carried out toward the 300MW CFBB in Baima Sichuan province, and finally improve the performance of CFBB effectively. © (2013) Trans Tech Publications, Switzerland.

关键词： Data mining

来源：评论

学校读者我要写书评

暂无评论

Fault detection for networked control systems via minimum error entropy observer

Fault detection for networked control systems via minimum er...

引用

2nd International Workshop on Advanced Computational Intelligence, IWACI 2009

作者： Zhang, Jianhua Cai, Lei Wang, Hong University of Manchester PO Box 88 Manchester M60 1QD United Kingdom Beijing Key Laboratory Industrial Process Measurement and Control New Technology and System North China Electric Power University Beijing 102206 China

ISBN: (纸本)9783642031557

In this paper, a novel fault detection scheme is presented for networked control systems with random delays and noises. Since the random noises and delays existed in networked control system are probably non- Gaussian, the extended Luenberger observer under minimum error entropy frame is utilized to generate residual so as to detect faults in networked control systems. Finally, an illustrative example is given to demonstrate the effectiveness of the proposed method. © 2009 Springer-Verlag Berlin Heidelberg.

关键词： Networked control systems

来源：评论

学校读者我要写书评

暂无评论

An information theoretic approach for design MIMO networked control systems

引用

7th International Symposium on Neural Networks, ISNN 2010

作者： Zhang, Jianhua Wang, Hong Beijing Key Laboratory of Industrial Process Measurement and Control New Technology and System North China Electric Power University Beijing 102206 China University of Manchester PO Box 88 Manchester M60 1QD United Kingdom

ISBN: (纸本)9783642129896

This paper presents a control system design strategy for multi-input and multi-output (MIMO) networked control systems with random delays. The performance index of the control systems is constructed by entropies of tracking error which can be estimated by Modha's density estimator via multi-layer perceptron (MLP). Finally, a simulation example is given to illustrate the efficiency and feasibility of the proposed approach. © 2010 Springer-Verlag Berlin Heidelberg.

关键词： Networked control systems

来源：评论

学校读者我要写书评

暂无评论

Three-level VSG feedforward control strategy based on transient damping enhancement 3

Three-level VSG feedforward control strategy based on transi...

引用

3rd International Conference on Energy, Power and Electrical technology, ICEPET 2024

作者： Yang, Jun Zhao, Shichang Wang, Yifei Mao, Rui Yao, Xingmao Su, Xiaoling State Grid Qinghai Electric Power Research Institute Xining810008 China Qinghai University Intelligent Operation for New Energy Based Power System Xining810016 China Changsha Tianheng Measurement and Control Technology Co. Ltd Changsha China

ISBN: (纸本)9798350352658

Virtual synchronous generator (VSG) is featured in solving problems caused by low inertia and weak damping of renewable energy-based power system. However, during active power or frequency disturbance, VSGs usually face challenges like output active power transient oscillation and frequency overshoot. This paper proposes a three-level VSG feedforward control strategy based on transient damping enhancement to solve above problems. Firstly, the closed-loop small-signal model of the active control loop for VSG grid-connected system is established, and the relationship between the moment of inertia and the damping coefficient of the traditional VSG is analysed. Then, the feedforward control strategy to enhance the transient damping is given, and the influence of the control strategy on the VSG grid-connected fluctuation is revealed based on the root trajectory of the system characteristic root. Finally, the working conditions of increasing the active command and decreasing the grid frequency are set respectively to verify the effectiveness of the proposed control strategy. The results indicate that the three-level VSG feedforward control strategy based on transient damping enhancement can effectively suppress the active power oscillation and alleviate frequency overshoot phenomenon. © 2024 IEEE.

关键词： Damping

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：