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检索条件"任意字段=2012 2nd International Conference on Computer Application and System Modeling, ICCASM 2012"

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Analysis patterns in dimensional data modeling

Analysis patterns in dimensional data modeling

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2nd international conference on Data Engineering and Management, ICDEM 2010

作者： Schneider, Stephan Frosch-Wilke, Dirk University of Applied Sciences Kiel Institute of Business Information Systems Sokratesplatz. 2 24149 Kiel Germany

ISBN: (纸本)9783642278716

The construction of conceptual dimensional data models is one of the most important, fundamental and challenging tasks during the analysis phase in the systems development life cycle of a data warehouse system. Such data models are representing operational as well as strategic business requirements. Dimensional data models are used for implementing dimensional databases within the data warehouse system, which itself will be used for generating crucial information for decision-making. Although the enormous importance of conceptual dimensional data models is well known, the use of approved analysis patterns is not common practice. The non-consideration of analysis patterns can yield to poorly planned and therefore qualitative unproven dimensional data models respectively databases, which similarly yields to qualitative unproven generated decision-relevant information. Up to now the use of analysis patterns in dimensional data modeling is given no attention to in literature and in practice. This paper will overcome this gap in building data warehouse systems by introducing analysis patterns for dimensional data models which address well known and recurring problems in specific contexts. © 2012 Springer-Verlag.

关键词： Data warehouses

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The application of Microcontroller Timer/Counter in Speed Measuring/Speed Regulation system

The Application of Microcontroller Timer/Counter in Speed Me...

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2nd international conference on Mechatronics and Intelligent Materials (MIM 2012)

作者： Jia Shisheng Li Baoyin Gao Xuehui Shandong Univ Sci & Technol Electromech Engn Dept Tai An 271021 Shandong Peoples R China

ISBN: (纸本)9783037853849

The system, a closed-loop control system which consists of single chip computer, control circuit, frequency converter and motor, can not only measure the motor's speed, but also can set the motor's speed conveniently and make the motor run at the set speed at last. There need to be three timers/counters to realize this function. As an enhanced 51 series microcontroller AT89S52, There are three such timers/counters (T0, T1, T2) in it. We can determine the motor's speed with T2 by installing powerful magnet and Hall sensor on the motor's axle. The Hall sensor generates a pulse when the motor's axle turn a round. We can get the motor's speed by calculating the cycle of the pulse. T1 and T2, as pulse width modulation signal generator, produce the pulse signals. Here T1 determines the cycle, and TO determines the duty ratio. The duty ratio of pulse signals can be regulated according to the deviation between the real speed and set speed. Then the single chip computer generates corresponding DC voltage, which controls the frequency converter and makes the motor run at the set speed finally. The system can be applied to many field that has special requirements to motor's speed.

关键词： Microcontroller Timer Counter frequency converter PWM

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Research on the Automatic Ammeter Reading system and Its application on the Intelligent Ecological Community Project

Research on the Automatic Ammeter Reading System and Its App...

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2nd international conference on Material and Manufacturing Technology (ICMMT 2011)Progress Meeting of the Royal-Society-of-Tropical-Medicine-and-Hygiene's Annual Research

作者： Yang, Chao Engn Coll Armed Police Force Dept Architecture Engn Xian 710086 Peoples R China

ISBN: (纸本)9783037852521

The Ultimate goal of property management in intelligent community lies in how to provide efficient and swift service with high quality. With the development of Science and Technology, Automatic Ammeter Reading system (RAARS) has made great improvement on Stability, accuracy and intelligence. The system with Automatic Ammeter for remote Reading is connected to property management center through Acquisition memory attached on the Bus using advanced sensing, electronics technologies based on traditional Mechanical instruments. As a result, managers can get the meter readings of central air conditioning, water, electricity, and gas of users from computer automatically which greatly decrease the labor force of workers and improve the management of property managing department.

关键词： Ecologic Intelligent Remote Ammeter reading

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Analysis and performance evaluation of application specific processors for network-based intrusion detection systems

Analysis and performance evaluation of application specific ...

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2nd international conference on Advances in Computing and Information Technology, ACITY-2012

作者： Nezakatolhoseini, Majid Jabbehdari, Sam Pourmina, Mohammad Ali Computer and Mechatronic Department Science and Research Branch Islamic Azad University Tehran Iran Computer Department Tehran North Branch Islamic Azad University Tehran Iran Electronic Department Science and Research Branch Islamic Azad University Tehran Iran

ISBN: (纸本)9783642315121

By growing and development of computer networks and generalizing the use of modern services on the information platform, the importance of communication and information security is considered more than the other times by network representations and users. Presented reports by response computer incident different groups show the wide growth of computer attacks in the recent years. In this case Network Intrusion Detection systems (NIDS) as one of the Intrusion Detection system (IDS) types, are be transformed to the utilization systems for establishing the security levels and detecting the illegal activities in the network. This research includes an IDS which is written in C programming language that uses 15597 Snort rules and MIT Lincoln Lab network traffic. By running this security application on the V850, OR1K, MIPS32, ARM7TDMI and PowerPC32 microprocessors, their performance can be evaluated. For increasing the performance in this research, the GNU Compiler Collection (GCC) optimization levels are used and at the end, base on O2 optimization level a new combination of optimization flags is presented which the performance of ARM7TDMI microprocessor is increased. © 2012 Springer-Verlag.

关键词： computer crime

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Mining dense structures to uncover anomalous behaviour in financial network data

Mining dense structures to uncover anomalous behaviour in fi...

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2nd international Workshop on modeling and Mining Ubiquitous Social Media, MSM 2011, MUSE 2011

作者： Redmond, Ursula Harrigan, Martin Cunningham, Pádraig School of Computer Science and Informatics University College Dublin Ireland

ISBN: (纸本)9783642336836

The identification of anomalous user behaviour is important in a number of application areas, since it may be indicative of fraudulent activity. In the work presented here, the focus is on the identification and subsequent investigation of suspicious interactions in a network of financial transactions. A network is constructed from data from a peer-to-peer lending system, with links between members representing the initiation of loans. The network is time-sliced to facilitate temporal analysis. Anomalous network structure is sought in the time-sliced network, illustrating the occurrences of unusual behaviour among members. In order to assess the significance of the dense structures returned the enrichment of member attributes within these structures is examined. It seems that dense structures are associated with geographic regions. © 2012 Springer-Verlag.

关键词： Finance

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Preliminary Study on CAD of Removable Partial Denture Framework

Preliminary Study on CAD of Removable Partial Denture Framew...

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2nd international conference on Advanced Design and Manufacturing Engineering (ADME 2012)

作者： Wang Yong Zhao Yijiao Wu Lin Lu Peijun Peking Univ Sch Stomatol Beijing 100081 Peoples R China

ISBN: (纸本)9783037855034

This study explored a method for CAD of removable partial denture (RPD) framework, which contributes to the development of a specialized software system used in restorative dentistry. Point cloud data of a mandibular partially edentulous cast was captured by an optical scanning system with projective grating and high-resolution digital camera. The 3D model of the cast was rebuilt by a CAD software system from the 3D cloud points. Based on the principle of clinical design, the digital survey line and inserting path were determined automaticly. The tissue surfaces and polishing surfaces of every component of RPD were built also by the CAD software. Furthermore, the characteristic structures of the framework including the lingual bar, the internal and external finish lines, the tissue stop were fabricated on the base of the rebuilt model. 3D surface model of the RPD framework was created at last. In this study, geometric model of the RPD framework was fabricated successfully, which took on good fitting, high visibility and easy to modify, and the data converted to STL format that could be read by any other CAD/CAM software system was in preparation for subsequent computer aided manufacture (CAM) of RPD framework.

关键词： computer aided design (CAD) removable partial denture (RPD) framework surface modeling

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2nd international conference on Chemical Engineering and Advanced Materials, CEAM 2012

2nd International Conference on Chemical Engineering and Adv...

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2nd international conference on Chemical Engineering and Advanced Materials, CEAM 2012

ISBN: (纸本)9783037854570

The proceedings contain 507 papers. The special focus in this conference is on energy development and energy chemical engineering, clean production and green chemical technology, polymer engineering, energy conservation and emission reduction, chemical process intensification, bio-pharmaceuticals and chemical pharmaceuticals, biological chemical and technology, food safety and inspecting technology, electrochemistry, exploitation, chemical thermodynamics and kinetics, chemical metallurgy and mining explorations, chemical process system and information engineering and chemical machinery and equipment. The topics include: different additives to inhibit magnesia (MgO) hydration;fabrication of Nb-based alloy via spark plasma sintering;microstructure and tensile property of NiAl-Cr alloyed with Zr;electrochemical corrosion characterization of as-cast Mg-7Li alloy;study on material constant values of Ti-6Al-4V-rare earth titanium;microstructure and properties of absorbing textile iron fiber;influence of grain size on corrosion resistance of a HSLA steel;mechanism of TWIP steel tensile deformation;research on the controlling technic of conclution in IF steel;study on technology of bamboo processing;studay on platinum prints processes;research on defect diagnosis and repair of LCD;cyanotype technology research and practice;a brief talk on material application in green packaging design;phase field modeling of multilayer epitaxial growth;loess cave dwellings' safety factor based on SRM;motion simulation of key components in a package machine;spring-damping model of moving boundary in SPH;a new spherical triangle graphic method and flow field characteristics simulation of the exhaust hood.

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2nd international Symposium on Advanced Rolling Equipment Technologies, ISARET 2012

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2nd international Symposium on Advanced Rolling Equipment Technologies, ISARET 2012

ISBN: (纸本)9783037854891

The proceedings contain 73 papers. The special focus in this conference is on advanced rolling process, equipments and technologies of the strip and plate;special rolling equipments and technologies;advanced shearing and straightening equipments and technologies;advanced testing instruments of rolling, shearing and levelling processes and rolled metal quality. The topics include: rolling theory analysis and forces calculation of heavy cylinder rolling mill with two drive rolls;research of smith monitor AGC based on active disturbance rejection control;research in hot-rolling downcoiler dynamic torque control;study on the relationship between chatter mark vibration and rolling skid for a twenty-high roll mill based on the measured torsional strain of the main drive shaft;the research on the coupling relation between flatness and edge drop for tandem cold rolling mill;active disturbance rejection control for hydraulic position control system of high-quality cold rolling mill;research of the roll system's flexural coupling-dynamic modeling;study on predictive model of plate camber;sensorless vector control of induction motor based on machine model;simulation and analysis on dynamic response characteristics of six-high rolling mill based on FEM;design of a new type casting rolling mill screw down system;simulation and application of molecular dynamics in materials science;constitutive relationship of TRIP780 steel in quenching process;study on tilt model and finite-element simulations on roller leveler;research in hot-rolling downcoiler dynamic torque control;study on the side blowing parameters of high-density pipe cooling equipment and multi-level materials service safety assessment system.

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2nd international conference on computer Science and Information Technology, CCSIT 2012

2nd International Conference on Computer Science and Informa...

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2nd international conference on computer Science and Information Technology, CCSIT 2012

ISBN: (纸本)9783642272981

The proceedings contain 66 papers. The special focus in this conference is on computer Science and Information Technology. The topics include: Adaptive quorum based MAC protocol in non uniform node distribution of wireless sensor networks;mobile agent in InVANET - traffic management;the design of observers for nonlinear control systems around equilibria;a node stability index-based connected dominating set algorithm for mobile ad hoc networks;energy efficient dynamic routing protocol for wireless sensor networks;energy efficient stable connected dominating set construction in mobile ad hoc networks;hybrid synchronization of Arneodo and Rossler chaotic systems by active nonlinear control;realization of SDR in partial reconfigurable FPGA using different types of modulation techniques;a recommender system for sweaty sock syndrome;enhanced AODV routing protocol for wireless sensor network based on zigbee;sliding mode controller design for the global chaos synchronization of Coullet systems;generalized projective synchronization of double-scroll chaotic systems using active feedback control;mobile ad hoc networks security attacks and secured routing protocols;privacy and security in digital networks from the perspective of modeling and software development;a logical topology to find alternate routes in WDM lightwave network;a trust based routing scheme for wireless sensor networks;survey of trust schemes on ad-hoc network;improve service discovery performance over different networks utilization and sizes;adaptive K-means clustering to handle heterogeneous data using basic rough set theory;different types of attacks mitigation in mobile ad hoc networks using cellular automata;a location dependent semantic cache replacement strategy in mobile environment;connectivity of autonomous agents using ad-hoc mobile router networks;a new approach to Stegnography;survey on key pre distribution for security in wireless sensor networks;a link distance ratio based stable multicast rout

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A cooperative multi-agent system for traffic congestion management in VANET

A cooperative multi-agent system for traffic congestion mana...

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2nd international conference on computer Science, Engineering and applications, ICCSEA 2012

作者： El Amine Ameur, Mohamed Drias, Habiba LRIA USTHB Algiers Algeria

ISBN: (纸本)9783642301568

Vehicular ad hoc networks (VANETs) are attracting the interest of a great number of academicians and industrials. One of the most interesting features is the possibility to use a spontaneous and inexpensive wireless ad hoc network between vehicles to exchange useful information such as warning the drivers of an accident or a danger. The very recent researches on Vehicular Ad Hoc networks present novel approaches which combine multi-agent technology with transportation systems. In this paper we focus on how to solve the problem of congestion and traffic management through the application of different agent technologies. Having cars equipped with sensors in a VANET, we propose an approach based on multi mobile agent technology. The empirical results have showed the impact of agent and intelligent communications on the Vehicular Ad Hoc networks in reducing the congestion in VANETs. © 2012 Springer-Verlag GmbH.

关键词： Vehicular ad hoc networks

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