检索结果-内蒙古大学图书馆

International Conference on Wireless Communications, Networking and Mobile Computing (WiCom)

作者： Yun, Zuo Zhihao, Ling Luming, Liu School of Information Science and Engineering East China University of Science and Technology Shanghai China Key Laboratory of Advanced Control and Optimization for Chemical Process Ministry of Education Shanghai China

ISBN: (纸本)9781424437092

The WirelessHART network is an emerging technology which aims at application in industry. The control network in industry always consists of many end devices and the environment is hash, so the network management of WirelessHART is very critical. This paper first introduced the wireless sensor network management mode and the critical techniques in WirelessHART network. Following that, network management in WirelessHART was analyzed and the solutions of some challenges were proposed. Finally it gave the expectation of WirelessHART technology. © 2010 IEEE.

关键词： Network management

来源：评论

学校读者我要写书评

暂无评论

design and implementation of automatic arithmetic generation system based on remote speech recognition

Design and implementation of automatic arithmetic generation...

引用

IEEE International Conference on Intelligent Computing and Intelligent Systems (ICIS)

作者： Yin, Xiangyuan Ling, Zhihao Guan, Liping Zhang, Luping Information Science and Engineering School of East China University of Science and Technology Shanghai China Zhejiang Wanli University Ningbo China Key Laboratory of Advanced Control and Optimization for Chemical Process Ministry of Education Shanghai China

ISBN: (纸本)9781424465835

In this paper, an automatic arithmetic generation system which can be remotely controlled by a particular speaker is designed and implemented to improve children's interest in learning math and facilitate parents to supervise children. The system is composed of the sender subsystem and the receiver subsystem. The sender subsystem is responsible to recognize speech and send the control command, and then the receiver subsystem can receive the command and execute corresponding program. The hardware system is made up of the SPCE061A microchip, keyboard, NRF2401 and LCD SPLC501 etc. The software system mainly achieves the following functions: recognition of speech, the control of NRF2401, random generation of arithmetic test samples, adjustment of different level, and supply of the correct answer. Finally, the system is experimented in some children. The result of experiment shows the system can greatly improve children's interest in learning math. ©2010 IEEE.

关键词： Speech recognition

来源：评论

学校读者我要写书评

暂无评论

Modeling growth of microalgae Dunaliella salina under different nutritional conditions

引用

American Journal of Biochemistry and Biotechnology 2010年第4期6卷 279-283页

作者： Jesus, Sergio Santos Filho, Rubens Maciel Department of Chemical Process Laboratory of Optimization Design and Advanced Control School of Chemical Engineering University of Campinas Unicamp Cidade Universitária Zeferino Vaz CP 6066 Campinas SP Brazil

Problem statement: The aim of this study was to find the empirical model that describes the growth kinetics of Dunaliella salina, with low production cost and to estimate parameters of this model. Approach: In this study the strain of D. salina UTEX 200 was cultivated in seawater (0.5 M NaCl) at room temperature with agitation of 150 rpm and luminous intensity of 60 mmols.m-2.s-1. The synthetic medium AS100 (0.2 M NaCl) was used in this study for comparison purposes and in order to determine the optimal growth of the microalgae. Kinetics of growth and β-carotene production was determined in a period of 15 days. Results: After the analysis of the behavior graphic, an unstructured model was used for describing the cell growth (logistic model). It was observed that the model was well adjusted to experimental data for the two conditions of analysis. It was observed that alga produces carotenoids under conditions of stress, in which the cell division are retarded. In the case of cells grown in seawater (higher salt concentration), the cell growth was lower but the concentration of β-carotene was higher. Conclusion: In general, these results suggest that D. salina presents higher potential for β-carotene accumulation and that high salinity decreases cellular concentration (measured by the parameter Xm of the kinetic model proposed);however there is an increase in β-carotene production. © 2010 Science Publications.

关键词： Microalgae

来源：评论

学校读者我要写书评

暂无评论

Optimal control over unreliable networks with uncertain loss rates

Optimal control over unreliable networks with uncertain loss...

引用

作者： Kögel, Markus J. Blind, Rainer Allgöwer, Frank Institute for Systems Theory and Automatic Control University of Stuttgart Stuttgart Germany Laboratory for Systems Theory and Automatic Control Institute for Automation Engineering Otto-von-Guericke University Magdeburg Magdeburg Germany Design and Optimization in Chemical and Biochemical Process Engineering International Max Planck Research School for Analysis Magdeburg Germany

ISBN: (纸本)9781424474264

In this work, we consider an optimal control problem for Networked control Systems (NCS), where the loop is closed via an unreliable network. In order to inform the controller about the fates of the control packets, the actuator sends acknowledgements to the controller. In this work, different types of acknowledgements are considered. Since all packets are send over a network, we consequently assume, that all packets can get lost, i.e. the measurement packets, the control packets as well as the acknowledgement packets. The loss of these packets is modeled by independent and identically distributed (iid) Bernoulli processes. Finally, we assume that the parameters of these loss processes are not known exactly. Using this setup, we derive bounds for the uncertainty in the loss rates. Moreover, we present an algorithm to design a sub-optimal controller which can tolerate a given amount of network uncertainties. © 2010 AACC.

关键词： Networked control systems

来源：评论

学校读者我要写书评

暂无评论

Particle swarm optimization algorithm of self-adaptive parameter based on ant system and its application

引用

Kongzhi Lilun Yu Yingyong/control Theory and Applications 2010年第11期27卷 1479-1488页

作者： Yang, Fan Hu, Chun-Ping Yan, Xue-Feng Key Laboratory of Advanced Control and Optimization for Chemical Processes of Ministry of Education East China University of Science and Technology Shanghai 200237 China Shanghai Nuclear Engineering Research and Design Institute Shanghai 200233 China

To adjust the inertia weight in particle swarm optimization(PSO), we propose a novel self-adaptive particle swarm optimization algorithm based on ant system(AS-PSO). First, the inertia weight space is divided into several regions;each of them is given the same initial intensity of pheromone trails. The probability for selecting a parameter region for each particle is determined by the intensity of the region pheromone trails and the particle's a priori knowledge of the search space. The evolution search is then performed in spaces of solutions. Finally the trail of the regions is updated according to the information of evolution. Experiments indicate that the promising AS-PSO algorithm realizes the evolution and the self-adaptation of the inertia weight by ant colony algorithm without increasing the function calls in evaluation. Results show that AS-PSO obviously outperforms the original self-adaptive PSO and the APSO-VI, in which the parameter is adjusted according to the velocity information. Furthermore, satisfactory results have been obtained when AS-SPO algorithm is applied to estimate the parameter of complex system models.

关键词： Particle swarm optimization (PSO)

来源：评论

学校读者我要写书评

暂无评论

Evolutionary algorithm using kernel density estimation model in continuous domain

Evolutionary algorithm using kernel density estimation model...

引用

Asian control Conference

作者： Na Luo Feng Qian Key Laboratory of Advanced Control and Optimization of Chemical Process Ministry of Education State Key Laboratory of Chemical Engineering East China University of Science and Technology Shanghai China Key Laboratory of Advanced Control and Optimization of Chemical Process Ministry of Education State-Key Laboratory of Chemical Engineering East China University of Science and Technology Shanghai China

ISBN: (纸本)9781424454402

Estimation of distribution algorithm (EDA) is a kind of evolutionary algorithm which updates and samples from probabilistic model in evolutionary course. The key of EDA is the construction of probability model suitable for real distribution. Gaussian distribution is widely used in EDAs but the assumption of normality is not realistic for many real-life problems. In this paper, a new EDA using kernel density estimation (KEDA) is introduced. Adaptive change strategy of kernel width is presented and selection scheme, sampling method are also given cooperated with KEDA. The results of 5 benchmark functions show that results of KEDA outperform PBIL C , UMDA C , EDA G , H-EDA.

关键词： Evolutionary computation Kernel Electronic design automation and methodology Laboratories Histograms Density functional theory Gaussian distribution Automatic control Chemical processes control engineering education

来源：评论

学校读者我要写书评

暂无评论

Large-scale parameter estimation using a master-slave parallel genetic algorithm:Application to a structured yeast model

Large-scale parameter estimation using a master-slave parall...

引用

13th International Biotechnology Symposium and Exhibition(第13届IUPAC国际生物工程会议)

作者： Elmer Ccopa Rivera Félix S.Farias Junior Rubens Maciel Filho Laboratory of Optimization Design and Advanced Control School of Chemical Engineering State University of Campinas P.O.Box 606613081-970 Campinas SP Brazil

来源：评论

学校读者我要写书评

暂无评论

Kinetic modeling of the lactic acid production from sugar cane for acrylic acid ester production

Kinetic modeling of the lactic acid production from sugar ca...

引用

13th International Biotechnology Symposium and Exhibition(第13届IUPAC国际生物工程会议)

作者： Bet(a)nia Hoss Lunelli Rubens Maciel Filho Maria Regina Wolf Maciel Laboratory of Optimization Design and Advanced Control Depart ment of Chemical Processes School of Chemical Engineering State University of Campinas P.O.Box 6066 ZIP 13083-970 Campinas SP.Brazil

来源：评论

学校读者我要写书评

暂无评论

AN APPROACH TO optimization OF A THREE PHASE CATALYTIC SLURRY REACTOR BY EVOLUTIONARY optimization WITH GENETIC ALGORITHMS

引用

IFAC Proceedings Volumes 2007年第5期40卷 373-378页

作者： D.N.C. Melo E.C. Vasco de Toledo A.P. Mariano M.M. Santos R. Maciel Filho Laboratory of Optimization Design and Advanced Control (LOPCA) Faculty of Chemical Engineering. State University of Campinas (Unicamp) P.O. Box 6066 13081-970 Campinas SP Brazil Petrobras SA Paulínia Refinery (REPLAN) Rodovia SP 332 - KM 132 P.O. Box 1 CP: 13140-000. Paulínia SP- Brazil

The present work introduces an investigation study about the optimization of a three-phase catalytic slurry reactor with phase changes. The study aims to determine the optimal operational conditions and, in a second stage, advanced control algorithms will be evaluated. A dynamic heterogeneous mathematical model formulation was used and genetic algorithms (GA) were employed to solve a nonlinear quadratic problem subject to bounds on the variables. The solutions obtained using the genetic algorithms gave suitable results to optimize the process by adjusting parameters as the reactor feed temperature and the flow rate of one of the reactants. It was possible to reach operation conditions that ensured a suitable profit and an acceptable compromise with the specifications of the desired product.

关键词： optimization two-layer approach genetic algorithms advanced control dynamic modeling and hydrogenation

来源：评论

学校读者我要写书评

暂无评论

Analysis of freeze drying and microwave vacuum drying processes for retinol concentration

Analysis of freeze drying and microwave vacuum drying proces...

引用

CHISA 2006 - 17th International Congress of Chemical and process Engineering

作者： Koroishi, E.T. Boss, E.A. Maciel Filho, R. State University of Campinas - UNICAMP Laboratory of Optimization Design and Advanced Control - LOPCA Post office box: 6066 13081-970 Campinas Brazil

ISBN: (纸本)8086059456

Vitamin A (retinol) and derivatives (retinyl esters, retinoic acid, retinaldehyde), are of great commercial potential in cosmetics and pharmaceuticals such as skin care products. Vitamin A is necessary for maintenance of healthy epithelial tissue and can prevent the inception or progress of skin cancers by stimulating normal cell differentiation. Deficiency of vitamin A is usually accompanied by a number of severe diseases. The preformed vitamin A (retinol) is found in foods of the animal source. The vegetables are vitamin A source under carotenoids form that will be converted to vitamin A in the organism. The retinol is a pure form of the vitamin A. The retinol, alcohol of the vitamin A is the most active of the retinoids. Retinol is used as an antiwrinkle in the cosmetics industry. It is a hydrophobic vitamin A compound that exerts a potent influence on cell differentiation, proliferation, homeostasis, and development. To facilitate the formulation of the some products, the retinol needs to be in concentrated form. However, due to sensibility of the retinol to temperature, conventional methods can not be adequate. In this work, the retinol drying was studied, using the freeze drying process and microwave vacuum drying with the goal to reduce the water tenor, that is to say, to increase the retinol concentration, and consequently to increase the shelf life. Freeze drying is a drying process, where the water or aqueous substance is removed from frozen solution through sublimation. In this process the water passes direct from the solid phase to vapor phase. In order to do that, it is necessary that the sublimation temperature zone be bellow the triple point. The aim of the freeze drying process is to conserve the product, reducing the activity water. This process guarantees the preservation of the original product characteristics. Due to the absence of solvent and the low temperature required for the process, most of deterioration and microbiological reactions are st

关键词： Vitamins

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：