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检索条件"机构=Electrical Engineering Study Program Engineering Faculty"

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Generating Activity Streams from Events occurring in company-internal IT infrastructures

Generating Activity Streams from Events occurring in company...

引用

2011 IEEE 13th International Conference on Communication Technology(ICCT 2011)

作者： Eng.S.M.Khaled Reza S.M.Mohsin Reza Masters Program in Computational Engineering (Distributed Systems Engineering) Faculty of Computer Science Dresden University of Technology Dresden Germany Masters Program in Information Technology (Embedded Systems Engineering) Faculty of Computer Science Electrical Engineering and Information Technology University of Stuttgart Germany

In the current era of technology,the Internet and web technologies become the center source of *** to the huge amount of contents,one of the main challenges of modern information technology is aimed at how to reduce and manage information in a structured way with mobilizing users to the similar kind of relevant ***,any intelligent system should be able to understand people's interest about a particular type of information and automatically mobilize him to the similar kind of available information *** idea of high level Activity Streams along with its standardized format can play a vital role to solve this problem in the broader *** paper introduces a novel system called CoASGen (Consolidation and Activity Streams Generator) which is able to automatically generate high level Activity Streams after aggregating and consolidating from different independent systems (*** a software company context:version management system,wikis,bug trackers etc.).It retrieves life time information as heterogeneous web feed by sensing user activities from those independent systems and then it transforms several similar types of atomic activities into high level Activity Streams using semantic technologies along with its specific standardized ***,it shows these high level Activity Streams to the user interface which is able to automatically motivate users to find relevant information easily without either missing any data or losing valuable *** system solves the problem "data silos" by reducing and managing information in a structured way.

关键词： Activity Streams,Atomic Activity,High Level Activity Stream,CoASGen System

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Design, implementation and analysis of fully digital 1-D controllable multiscroll chaos

Design, implementation and analysis of fully digital 1-D con...

引用

International Conference on Microelectronics, ICM

作者： A. S. Mansingka A. G. Radwan K. N. Salama Electrical Engineering Program Division of Physical Sciences and Engineering King Abdullah University of Science and Technology Thuwal Saudi Arabia Department of Engineering Mathematics Faculty of Engineering Cairo University Cairo Egypt

This paper introduces the fully digital implementation of a 1-D multiscroll chaos generator based on a staircase nonlinearity in the 3rd-order jerk system using the Euler approximation. For the first time, digital design is exploited to provide real-time controllability of (i) number of scrolls, (ii) position in 1-D space, (iii) Euler step size and (iv) system parameter. The effect of variations in these fields on the maximum Lyapunov exponent (MLE) is analyzed. The system is implemented using Verilog HDL and synthesized on an Xilinx Virtex 4 FPGA, exhibiting area utilization less than 3.5% and high performance with experimentally verified throughput up to 3.33 Gbits/s. This fully digital system enables applications in modulation schemes and chaos-based cryptosystems without analog to digital conversion.

关键词： Maximum likelihood estimation Chaotic communication Generators Field programmable gate arrays Approximation methods Hardware design languages

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Effect of STATCOM on the low-voltage-ride-through capability of Type-D wind turbine generator

Effect of STATCOM on the low-voltage-ride-through capability...

引用

IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)

作者： A. M. Shiddiq Yunus Mohammad A. S. Masoum A. Abu-Siada Department of Mechanical Engineering Energy Conversion Study Program State Polytechnic of Ujungpandang Makassar Indonesia Department of Electrical nd Computer Engineering Curtin University Perth WA Australia

Variable speed wind turbine with full scale converter or so-called Type-D wind turbine generator worldwide installation has been significantly increased in the last few years. Voltage sag in the grid side may cause the wind turbine to be disconnected from the grid. In this paper, effect of STATCOM on the low voltage ride through capability of Type-D wind turbine during voltage sag in the grid side is studied. Simulation is carried out using MATLAB/Simulink software. Results show that STATCOM can significantly improve the voltage profile at the Point of Common Coupling (PCC) and improve the capability of Type-D wind turbine and prevents it from being disconnected from the grid during certain level of voltage sag in the grid side.

关键词： Automatic voltage control Wind turbines Voltage fluctuations Educational institutions Reactive power Power system stability

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Design of innovative recommender system for Economic Assessment with application to Advanced Process Control

Design of innovative recommender system for Economic Assessm...

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International Conference on electrical engineering/Electronics, Computer, Telecommunications and Information Technology, ECTI-CON

作者： Anukoon Asawachatroj David Banjerdpongchai Technopreneurship and Innovation Management Program Graduate School Chulalongkom University Bangkok Thailand Department of Electrical Engineering Faculty of Engineering Chulalongkom University Bangkok Thailand

This paper presents a conceptual framework of the Unified Economic Assessment (UEA) which integrates the knowledge from various perspectives from the real world business. Three major aspects, namely, Technology, Economics & Finance, and Innovation Management will be considered to merge into the justification criteria of the development tool. Applied econometrics includes the application of econometric methods will be use for economic forecasting. The recommender system will provide a prudential guidance whether the application of Advanced Process Control (APC) is worthwhile for industrial project investment.

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Application of SMES unit to improve the high-voltage-ride-through capability of DFIG-grid connected during voltage swell

Application of SMES unit to improve the high-voltage-ride-th...

引用

IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)

作者： A. M. Shiddiq Yunus A. Abu-Siada M. A. S. Masoum Department of Mechanical Engineering Energy Conversion Study Program State of Polytechnic Ujung Pandang Makassar Indonesia Department of Electrical and Computer Engineering Curtin University of Technology Perth WA Australia

The amount of wind turbine connected to the power grid has significantly increased during the last decade. This has resulted in essential need to establish grid codes. Previously, wind turbine generators (WTGs) were allowed to be disconnected from the network during any disturbance at the grid side to avoid WTGs from being damaged. However, lately, the transmission system operators (TSOs) require WTGs to be stayed connected to provide support to the grid during fault. This new requirement has been regulated in the new grid codes. In this paper, the super conducting magnetic energy storage (SMES) unit is used to enhance the high voltage ride through (HVRT) capability of DFIG based WTG during voltage swell events at the grid side. Two new grid codes are used to verify the ability of the SMES unit to avoid the WTG from being disconnected from the grid.

关键词： Coils Wind turbines Fuzzy logic Generators Reactive power Input variables Voltage fluctuations

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Improvement of LVRT capability of variable speed wind turbine generators using SMES unit

Improvement of LVRT capability of variable speed wind turbin...

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IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)

作者： A. M. Shiddiq Yunus A. Abu-Siada Mohammad A. S. Masoum Department of Mechanical Engineering Energy Conversion Study Program State of Polytechnic Ujung Pandang Makassar Indonesia Department of Electrical and Computer Engineering Curtin University of Technology Perth WA Australia

The ability of variable speed wind turbines technology to optimally tracking the power from wind energy has become the main reason of their popularity compared with the fixed speed wind turbines. In the earlier stage of connecting wind turbines (WTs) to the existing electricity grids, WTs were allowed to be disconnected from the grid in case of grid faults which might lead to the damage of the turbines. However, recently, the transmission system operators (TSOs) require to maintaining the connection of WTs with the grid to support the grid during fault and to assure the continuity of power supply. This requirement has been compiled in new grid codes in several countries. In this paper, super conducting magnetic energy storage (SMES) unit is used with two different types of variable speed wind turbine generators to comply with Spain grid codes. Results show that the low-voltage-ride-through (LVRT) of Type-3 and Type-4 wind turbine generators are significantly improved when SMES unit is connected to the system.

关键词： Wind turbines Coils Voltage fluctuations Generators Choppers Shafts Safety

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Collaboration model of software development

Collaboration model of software development

引用

International Conference on electrical engineering and Informatics, ICEEI

作者： Tien Fabrianti Kusumasari Iping Supriana Kridanto Surendro Husni Sastramihardja Information System Program Study STMIK 1M Bandung Indonesia School of Electrical Engineering and Informatics Bandung Institute of Technology Indonesia

Software development is a series of processes activity involving more than one person, especially in medium to large software projects. Each activity of software development is carried out by various combination of different individual. Collaboration occurs in every phase of the process software development. The right team collaboration method is one of the important things in success software development. This research is focused to develop collaboration model of software development to meet time schedule, budget, scope, and software quality. The collaboration model of software development is generated from survey of collaboration method (about face to face and virtual collaboration) and software development methodology especially agile methodology. The direct collaboration was used in the software specification processes, and combination (with a direct and virtual) collaboration was used during software design, implementation, and validation. Team coordination in every process of software development was done with face to face method. The same artifacts were used in this collaboration model with some collaboration software tools. Combination between face to face and virtual communication was used in this model. The model is implemented in small case software development project. During the software development, some measurement is carried out. The measurement included the measurement of project completion time, cost, software specification, and software quality. The software is developed in time schedule (two months), cost under budged, and meet specification. In addition, the software has built a fairly good quality. Thus, this collaboration model good use in software development to achieved accuracy of schedule, cost, scope, and quality.

关键词： Collaboration programming Face Software measurement Software tools Software quality

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Application of STATCOM to improve the high-voltage-ride-through capability of wind turbine generator

Application of STATCOM to improve the high-voltage-ride-thro...

引用

IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia)

作者： Y. M. Alharbi A. M. Shiddiq Yunus A. Abu-Siada King Abdullah scholarship program Australia Department of Mechanical Engineering Energy Conversion Study State Polytechnic of Ujungpandang Makassar Indonesia Department of Electrical and Computer Engineering Curtin University of Technology Perth WA Australia

Variable speed wind turbine with full scale converter or so-called type-D wind turbine generator worldwide installation has been significantly increased in the last few years. Voltage Swell in the grid side may cause the wind turbine to be disconnected from the grid. In this paper, STATCOM is applied to improve the high voltage ride through capability of type-D wind turbine during voltage swell in the grid side. Simulation is carried out using MATLAB/Simulink software. Results show that STATCOM can significantly improve the high voltage ride through (HVRT) capability of type-D wind turbine and prevents it from being disconnected from the grid during certain level of voltage swell in the grid side.

关键词： Automatic voltage control Wind turbines Educational institutions Reactive power Control systems Power system stability Wind energy

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The study of Optical Behaviour POROUS SILICON (PSI) DOPED with ERBIUM (Er) by PHOTOLUMINESCENCE Technique

The Study of Optical Behaviour POROUS SILICON (PSI) DOPED wi...

引用

IEEE Colloquium on Humanities, Science and engineering

作者： N. I. Ikhsan S. Abdullah M. Rusop School of Physics and Material Study Faculty of Applied Science Universiti Teknologi MARA Shah Alam NANO-ElecTronic Centre Faculty of Electrical Engineering Universiti Teknologi MARA Shah Alam

ISBN: (纸本)9781467300216

Porous Silicon (PS) doped Erbium (Er) has been studied where Er on PSi is involved interaction of silicon and silicon dioxide. The Er doping process was carried out by immersion technique with electrolyte composed of Erbium (III) nitrate pentahydrate (Er_3NO_3OH_5) and Ethanol. The photoluminescence (PL) effect on PSi samples have been studied and shows a PL intensity is improves at certain mass percentage of Erbium (Er) and the PL peak shifts to the blue luminescence. The result shows that when the Erbium diffuses into a pore, an enhancement of the photoluminescence was obtained for all Erbium used concentration. The photoluminescence of porous silicon (PS) was increased at about 12%. It was also found that the photoluminescence became stable at certain point after the dopant solution continually to increase. All samples show a broad nanocrystal-related luminescence spectrum centered around 700 nm to 725 nm. So it concluded that the porous silicon doped with erbium is able to increase the photoluminescence intensity.

关键词： Porous silicon Erbium doping Photoluminescence Quenching effect

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Reducing time delays on congested road networks using social navigation

Reducing time delays on congested road networks using social...

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IEEE Forum on Integrated and Sustainable Transportation System (FISTS)

作者： Alje van den Bosch Bart van Arem Mohamed Mahmod James Misener Department of Applied Mathematics Faculty of Electrical Engineering Mathematics and Computer Science University of Twente Netherlands Partners for Advanced Transit and Highways (PATH) program University of California Berkeley USA Department of Transport and Planning at the Faculty of Civil Engineering and Geosciences Delft University of Technnology Netherlands Centre of Transport Studies Faculty of Engineering University of Twente Enschede Netherlands

Social navigation provides drivers with an advice that aims to shift traffic flows in a network from a user equilibrium to a system optimum. The advice is based on minimizing a combination of the individual travel time and the marginal total travel time in the network. The level of altruism defines the extent to which a driver is willing to sacrifice his own travel time in favor of other drivers. Fuel consumption and CO2 emission are taking into account by converting them into time equivalent. Experimental results for a small network loosely representing the Bay area show that social navigation can reduce time delays by 10%. The reduction is positively correlated with network load, market penetration and level of altruism.

关键词： Navigation Driver circuits Vehicles Fuels Vehicle dynamics Roads Approximation methods

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