检索结果-内蒙古大学图书馆

Distributed Generation Technologies and Optimization

Procedia Technology 2014年 12卷 687-692页

作者： Lucian Ioan Dulău Mihail Abrudean Dorin Bică PhD School System Engineering Faculty of Automation and Computer Science Technical University of Cluj-Napoca Cluj-Napoca Romania/Faculty of Engineering “Petru Maior” University of Tîrgu-Mureş Tîrgu-Mureş Romania Department of Automation Faculty of Automation and Computer Science Technical University of Cluj-Napoca Cluj-Napoca Romania Department of Electrical and Computer Engineering Faculty of Engineering “Petru Maior” University of Tîrgu-Mureş Tîrgu-Mureş Romania

This paper describes the main technologies used for distributed generation and the optimization of a system that contains these technologies. The term distributed generation refers to the production of electricity near the consumption place. The distributed generation resources are renewable energies and cogeneration (simultaneous production of heat and electricity). Renewable energy is energy from natural resources such as wind, sunlight, tides, waves, geothermal heat and biomass. The optimization aims to minimize the electricity production costs ensuring that the load is served reliably.

关键词： distributed generation renewable energy micro-hydro photovoltaic panel wind turbine optimization

来源：评论

学校读者我要写书评

暂无评论

Effects of Distributed Generation on Electric Power Systems

引用

Procedia Technology 2014年 12卷 681-686页

This paper describes the effects of distributed generation on electric power systems. Distributed generation is a term that refers to the production of electricity near the consumption place. The effects of distributed generation are: short circuit levels are increased, load losses change, voltage profiles change along the network, voltage transients will appear, congestions can appear in system branches, power quality and reliability may be affected and the networks protections may not function properly. A load flow analysis is done for the IEEE 14 system in which a distributed generator is added, that is on-grid or off-grid.

关键词： distributed generation electric power system effects load flow analysis IEEE 14

来源：评论

学校读者我要写书评

暂无评论

Spike detection and sorting using PARAFAC2 method

Spike detection and sorting using PARAFAC2 method

引用

Annual International Conference of the IEEE engineering in Medicine and Biology Society (EMBC)

作者： T. Just M. Weis P. Husar Faculty of Computer Science and Automation Institute of Biomedical Engineering and Informatics Ilmenau POB Germany

In this contribution we introduce the Parallel Factor 2 (PARAFAC2) analysis as a novel method for the simultaneous detection and classification of neural action potentials. In order to measure these action potentials (spike signals), stem cell derived neuronal cells are cultivated on the surface of a Micro Electrode Array (MEA). Here, the neuronal cells produce ion currents, which can be measured as extracellular electric potentials. Whenever a cell or a group of cells produces ion currents, either spontaneously or evoked by a stimulus, a spike signal can be measured by the electrodes of the MEA. Stimulated cells produce spikes and groups of spikes (bursts) which propagate in space over the MEA. In the recorded data, different source types (e.g., cells which respond directly to external stimuli and cells which are triggered by other neural cells) are characterized by different spike shapes. The proposed PARAFAC2 method is able to separate these spike shapes (sources) in time, frequency and space (channels) enabling an improved performance in noisy scenarios. Furthermore, PARAFAC2 allows for a causality analysis on the measured spike signals (i.e. the identification of different signal paths). Thereby, the PARAFAC2 decomposition is able to exploit the multi-dimensional structure of the MEA data.

关键词： Time-frequency analysis Signal to noise ratio Sorting Electric potential Electrodes Matrix decomposition Neurons

来源：评论

学校读者我要写书评

暂无评论

Phantom materials mimicking the optical properties in the near infrared range for non-invasive fetal pulse oximetry

Phantom materials mimicking the optical properties in the ne...

引用

Annual International Conference of the IEEE engineering in Medicine and Biology Society

作者： Sebastian Ley Miriam Stadthalter Dietmar Link Daniel Laqua Peter Husar Faculty of Computer Science and Automation Institute of Biomedical Engineering and Informatics Technische Universitat Ilmenau

ISBN: (纸本)9781424479276

An optical phantom of the maternal abdomen during pregnancy is an appropriate test environment to evaluate a non-invasive system for fetal pulse oximetry. To recreate the optical properties of maternal tissue, fetal tissue and blood suitable substitutes are required. For this purpose, phantom materials are used, which consist of transparent silicone or water as host material. Cosmetic powder and India ink are investigated as absorbing materials, whereas titanium dioxide particles are examined as scattering medium. Transmittance and reflectance measurements of the samples were performed in the spectral range from 600 nm to 900 nm using integrating sphere technique. The scattering and absorption coefficients and the anisotropy factor were determined using Kubelka-Munk theory. The results were used to compute the required mixture ratios of the respective components to replicate the optical properties of maternal tissue, fetal tissue and blood, and corresponding samples were produced. Their optical properties were investigated in the same manner as mentioned above. The results conform to the values of various types of tissues and blood given in the scientific literature.

关键词： Optical scattering Powders Ink Blood Absorption

来源：评论

学校读者我要写书评

暂无评论

Multiple neural networks switched prediction for landslide displacement

引用

engineering Geology 2014年 186卷 91-99页

作者： Lian, Cheng Zeng, Zhigang Yao, Wei Tang, Huiming School of Automation Huazhong University of Science and Technology Wuhan 430074 China Key Laboratory of Image Processing and Intelligent Control of Education Ministry of China Wuhan 430074 China School of Computer Science South-Central University for Nationalities Wuhan 430074 China Faculty of Engineering China University of Geosciences Wuhan 430074 China

An accurate prediction of landslide displacement is challenging and of great interest to governments and researchers. In order to reduce the risk of selecting the types of influencing factors and artificial neural networks (ANNs), a multiple ANNs switched prediction method is proposed for landslide displacement forecasting. In the first stage, a set of individual neural networks are developed based on different environmental factors and/or different training algorithms. In the second stage, a switched prediction method is used to select the appropriate individual neural network for prediction purpose. For verification and testing, three typical landslides in Three Gorges Reservoir, namely Baishuihe landslide, Bazimen landslide and Shiliushubao landslide, are presented to test the effectiveness of our method. Application results demonstrate that the proposed method can significantly improve model generalization and perform similarly to, or better than, the best individual ANN predictor. © 2014 Elsevier B.V.

关键词： Forecasting

来源：评论

学校读者我要写书评

暂无评论

Special issue: The 9th international symposium on electric and magnetic fields (EMF 2013)

Special issue: The 9th international symposium on electric a...

引用

作者： Dupre, Luc Geuzaine, Christophe Department of Electrical Energy Systems and Automation Faculty of Engineering and Architecture Ghent University Sint Pietersnieuwstraat 41 B-9000 Ghent Belgium Department of Electrical Engineering and Computer Science Montefiore Institute University of Liège B-4000 Liège Belgium

The special issue of the International Journal of Numerical Modeling: Electronic Networks, Devices And Fields carried a report on the 9th International Symposium on Electric and Magnetic Fields (EMF 2013). The 9th edition was organized by the Department of Electrical engineering and computer science of the faculty of Applied science of the University of Liège and by the Department of Electrical Energy, Systems and automation of the faculty of engineering and Architecture of Ghent University. EMF 2013 was attended by 108 participants from 19 countries and featured four keynote speakers. Twenty-two of the presented papers were selected for publication in this special issue, while the high scientific and technical quality of the symposium was well reflected in the quality of the manuscripts contained in this issue.

关键词： Magnetic fields

来源：评论

学校读者我要写书评

暂无评论

A framework for mobile microrobots control

A framework for mobile microrobots control

引用

2014 AASRI International Conference on Applied engineering sciences（ICAES2014）

作者： Florin Dragomir Mihaela Ivan Alexandru Ivan Automation Computer Science and Electrical Engineering DepartmentValahia University of TargovisteElectrical EngineeringElectronics and Information Technology Faculty

Recent progress in micro-/nanotechnologies,related to the manufacturing and control strategies has enabled the micro-electro-mechanical systems(MEMS) actuators and sensors.A new developing field has recently appeared in the nano- and micro-technologies,the untethered,submillimeter,nano- or micro-sized robots,which present potential applications in targeted drug delivery,biomedical diagnosis or micro-electromechanical parts *** problems,such as microfabrication,system design,control and remote power sourcing still need to be considered and developed to real *** is the field of miniature robotics and represents that category of robotics,which are concerned with the study and application of miniature ones such as mobile robots of micrometre *** article presents a microrobotics perspective on the microfabrication and micromanipulation work that we *** major current challenges are effective innovation,remote power sourcing,and suitable mechanisms for *** and propelling such small devices is needed to overcome the nonlinear physics at this dimension(nano- or micrometers size).Then,the ability to accurately manoeuver it is the next challenge.

关键词： A framework for mobile microrobots control

来源：评论

学校读者我要写书评

暂无评论

The classification of meningioma subtypes based on the color segmentation and shape features

The classification of meningioma subtypes based on the color...

引用

5th International Symposium on IT in Medicine and Education, ITME 2013

作者： Zeng, Ziming Tong, Zeng Han, Zhonghua Zhang, Yinlong Zwiggelaar, Reyer Information and Control Engineering Faculty Shenyang Jianzhu University Liaoning China Department of Computer Science Aberystwyth University Aberystwyth United Kingdom School of Management Shenyang Jianzhu University Shenyang Liaoning China Shenyang Institute of Automation Chinese Academy of Science Shenyang Liaoning China

ISBN: (纸本)9789400776173

This paper proposed an automatic method for the classification of meningioma subtypes based on the unsupervised color segmentation method and feature selection scheme. Firstly, a color segmentation method is utilized to segment the cell nuclei. Then the set of shape feature vectors which are calculated from the segmentation results are constructed. Finally, a k-nearest neighbour classifier (kNN) is used to classify the meningioma subtypes. Experiment shows that the classification accuracy of 85 % is achieved by using a leave-one-out cross validation approach on 80 meningioma images. © Springer science+Business Media Dordrecht 2014.

关键词： Color

来源：评论

学校读者我要写书评

暂无评论

Dynamic Vehicle Scheduling With Time Windows Model and Optimization

Dynamic Vehicle Scheduling With Time Windows Model and Optim...

引用

第四届智能结构与振动控制国际会议

作者： Rui Wang Ning Guo Oxbridge College Kunming University of Science and TechnologyComputer and Electrical and Electronic Engineering Faculty of Information Engineering and Automation of Kunming University of Science and Technology

The logistics vehicle scheduling optimization is a hot issue in the field,and its research can greatly reduce transportation costs,and meet the different needs of the logistics supply chain to the maximum extent,and to promote the improvement and development of logistics management has a very important significance and broad application *** recent years,scholars of domestic distribution vehicle scheduling optimization study outcomes were systematically organize,and commentary from many aspects of the models,algorithms,research methods,and discusses some of the problems and prospects for future research direction.

关键词： Vehicle Scheduling Optimization Review

来源：评论

学校读者我要写书评

暂无评论

Light source driver, photodiode and impedance sensing in plethysmographic measurements

Light source driver, photodiode and impedance sensing in ple...

引用

ELEKTRO

作者： Stefan Borik Ivona Malikova Johannes Miersch Daniel Laqua Sebastian Ley Peter Husar Faculty of Electrical Engineering University of Zilina Zilina Slovakia Faculty of Computer Science and Automation Technische Universität Ilmenau Ilmenau Germany

This work combines photoplethysmographic and electrical impedance plethysmographic measurements. A lack of blood delivery and oxygenation during pregnancy may have fatal consequences for the fetus. Photoplethysmographic measurements illuminate the tissue and measure the change of light absorption. In this contribution a photoplethysmographic measurement system is presented. The hardware concept includes an analog signal processing circuit for the photodiode and a special driver circuit to power two light sources (red and infrared LED). For photoplethysmographic measurements only one LED is required, but in view of future purposes, such as pulse oximetry, a second LED is already implemented. Furthermore this paper shows results of electrical impedance plethysmography. This designed photoplethysmographic measuring in combination with impedance cardiography might be promising in examine of fetus.

关键词： Light emitting diodes Impedance Transistors Switches Fetus Electric variables measurement Photodiodes

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：