Connecting expensive and scarce visual dataanalysis resources to end-users is a major challenge today. We describe a flexible mechanism for meeting this challenge based on commodity compression technologies for strea...
Energy demand for buildings become a crucial problem in Indonesia, as there is huge construction activity in Indonesia. It requires a fundamental investigation on how to minimize the energy consumption, because air co...
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Energy demand for buildings become a crucial problem in Indonesia, as there is huge construction activity in Indonesia. It requires a fundamental investigation on how to minimize the energy consumption, because air conditioning in Indonesia takes more than 45% of the total consumption of the building electricity. In this paper, the results of simulating the cooling energy demand of a small reference office building using the weather data of Surabaya, Indonesia is presented. The simulation and visualization tool used was Design Builder, an Energy Plus based dynamic thermal simulation engine. First of all, a highly insulated reference office building was simulated, in order to obtain its cooling energy demand. Subsequently a sensitivity analysis was done with the aim of obtaining the parameters that contribute significantly to the decrease of cooling energy demand. The results show that increasing the indoor air set point temperature gives the most valuable effect of the cooling energy demand, followed by the variation of percentage of north window to wall ratio and g-value of glass. In addition, north shading device also contribute to the reduction of cooling energy, followed by overhangs. Thermal mass, the ratio of window to wall for south and east orientation, U-value of glass, and south shading give only little effect on the percentage change of cooling energy. By simulating an optimized building based on previous simulation results, the cooling energy demand decreases 40% compared to the base case.
The wide-area synchronized phasor measurement system envisioned by Comision Federal de Electricidad (CFE) during the 1990's and designed to increase the security and integrity of Mexico's electric power system...
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The wide-area synchronized phasor measurement system envisioned by Comision Federal de Electricidad (CFE) during the 1990's and designed to increase the security and integrity of Mexico's electric power system. This paper presents the different development stages taken for the deployment of WAMS. Details of the current state and PMU data-based application examples within CFE are also provided. CFE has a potential of more than 140 Units of Mensuration Fasorial (PMU's) and relays protection with phasor measurement functions of different manufactures and models, installed in the three different electric power systems. The project of a Wide Area Measurement System of CFE is conformed by regional data concentrators of PMU's, located in each Regional Management of Transmission or Control Areas, and a Central Unit or super concentrator. In this Central Unit is possible to save the files for analysis post mortem. Also is possible the visualization in real time of voltage, frequency, fase angle, MW and MVAR in different points of the electric systems. During ten years of experience with sincrofasors, the CFE has developed applications for the analysis of fauls and reproduction of events. Also, with the registrations of PMU's regulators, stabilizers and underfrequency load shedding schemes have been adjusted. At the moment, in CFE are working in the development of applications for the Automatic Generation Shedding Schemes (AGSSs) using Phasor Measurement and Control Units PMCU's.
GMOSS (Global Monitoring for security and stability) is a Network of Excellence (NoE) in the Aeronautics and Space priority of the 6th Framework Program of the European Union lasting from 2004 to 2008. Being part of t...
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GMOSS (Global Monitoring for security and stability) is a Network of Excellence (NoE) in the Aeronautics and Space priority of the 6th Framework Program of the European Union lasting from 2004 to 2008. Being part of the "Global Monitoring of Environment and Security" (GMES) program, GMOSS aimed to integrate the European civil security research while assembling a critical mass of resources, activities, and expertise needed to ensure a durable integration of the participants' capacities for global monitoring using satellite earth observation. The activities carried out during these fours years were threefold: integrating activities, implementing a joint research program, and spreading of excellence. This paper summarizes these activities. The security issues considered by GMOSS are first presented. The GMOSS consortium is then described. In the next sections, the focus is successively put on GMOSS Test Cases, real-time exercises, training activities and Gender Action Program.
This article describes the set of computer systems that support the dataanalysis and quality control during the Tile Calorimeter commissioning phase. The Tile Commissioning Web System (TCWS) encapsulates the steps to...
This article describes the set of computer systems that support the dataanalysis and quality control during the Tile Calorimeter commissioning phase. The Tile Commissioning Web System (TCWS) encapsulates the steps to retrieve information, execute programs, access the outcomes, register statements and verify the equipment status. TCWS integrates different applications, each one presenting a particular view of the commissioning process. The TileComm analysis stores plots and analysis results, provides equipment-oriented visualization, collects information regarding the equipment performance, and outlines its status in each test. The Timeline application provides the equipment status history in a chronological way. The Web Interface for Shifters supports monitoring tasks by managing test parameters, graphical views of the detector's performance, and information status of all equipment that was used in each test. The DCS Web System provides a standard way to verify the behaviour of power sources and the cooling system.
The current rate of Mars exploration data acquisition demands that geoscientists and computer scientists coordinate central storage, processing and visualization strategies to anticipate future technological advanceme...
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ISBN:
(纸本)081945642X
The current rate of Mars exploration data acquisition demands that geoscientists and computer scientists coordinate central storage, processing and visualization strategies to anticipate future technological advancements. We investigate how existing 3-D visualization tools can be used to study a part of the Mars orbiter and lander data (about 4 terabytes of data). Our tools assist in juxtaposition of different datum and in viewing data that spans multiple orders of magnitude, specifically for current scientific research pertaining to Mars' geophysics and geology. These tools also permit effective data fidelity and resolution assessment, allowing quick identification of problems related to the use of differing spatial coordinate systems, a continued problem. Knowledge gained from the small dataset we test, helps us identify key tools needed to accommodate the technology required to process and analyze approximately 64 terabytes of Mars data expected by 2008. We use the current planetary data archives, and identify key visualization techniques and tools that distill multiple data types into manageable end products. Our goal is to broaden the user base, using readily available platform-independent freeware packages, while simultaneously including sufficient modularity to be compatible with future technologies.
The refereed proceedings of the 14th Annual International Computing and Combinatorics conference, COCOON 2008, held in Dalian, China, in June 2008. The 66 revised full papers presented were carefully reviewed and sele...
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ISBN:
(数字)9783540697336
ISBN:
(纸本)9783540697329
The refereed proceedings of the 14th Annual International Computing and Combinatorics conference, COCOON 2008, held in Dalian, China, in June 2008. The 66 revised full papers presented were carefully reviewed and selected from 172 submissions. The papers are organized in topical sections on algorithms and data structures, algorithmic game theory and online algorithms, automata, languages, logic, and computability, combinatorics related to algorithms and complexity, complexity theory, cryptography, reliability and security, and database theory, computational biology and bioinformatics, computational algebra, geometry, and number theory, graph drawing and information visualization, graph theory and algorithms, communication networks, and optimization, wireless network, network optimization, and scheduling problem.
The 16th International Symposium on Graph Drawing (GD 2008) was held in Hersonissos, near Heraklion, Crete, Greece, September 21-24, 2008, and was attended by 91 participants from 19 countries. In response to the call...
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ISBN:
(数字)9783642002199
ISBN:
(纸本)9783642002182
The 16th International Symposium on Graph Drawing (GD 2008) was held in Hersonissos, near Heraklion, Crete, Greece, September 21-24, 2008, and was attended by 91 participants from 19 countries. In response to the call for papers the Program Committee received 83 s- missions,eachdescribing originalresearchand/or a *** submissionwasreviewedbyatleastthreeProgramCommitteemembersandthe reviewer’s comments were returned to the authors. Following extensive disc- sions, the committee accepted 31 long papers and 8 short papers. In addition, 10 posters were accepted and displayed at the conference site. Each poster was granted a two-page description in the conference proceedings. Two invited speakers, Jesper Tegn´ er from Karolinska Institute (Monday) and Roberto Tamassia from Brown University (Tuesday), gave fascinating talks during the conference. Professor Tegn´ er focused on the challenges and oppor- nities posed by the discovery, analysis, and interpretation of biological networks to information visualization, while Prof. Tamassia showed how graph drawing techniques can be used as an e?ective tool in computer security and pointed to future research directions in this area. Following what is now a tradition, the 15th Annual Graph Drawing Contest was held during the conference, also including a Graph Drawing Challenge to the conference attendees. A report is included in the conference proceedings.
The discipline of formal concept analysis (FCA) is concerned with the form- ization of concepts and conceptual thinking. Built on the solid foundation of lattice and order theory, FCA is ?rst and foremost a mathematic...
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ISBN:
(数字)9783642018152
ISBN:
(纸本)9783642018145
The discipline of formal concept analysis (FCA) is concerned with the form- ization of concepts and conceptual thinking. Built on the solid foundation of lattice and order theory, FCA is ?rst and foremost a mathematical discipline. However,its motivation andguiding principles arebasedon strongphilosophical underpinnings. In practice, FCA provides a powerful framework for the qua- tative, formal analysis of data, as demonstrated by numerous applications in diverse areas. Likewise, it emphasizes the aspect of human-centered information processing by employing visualization techniques capable of revealing inherent structure in data in an intuitively graspable way. FCA thereby contributes to structuring and navigating the ever-growing amount of information available in our evolving information society and supports the process of turning data into information and ultimately into knowledge. In response to an expanding FCA community, the International conference on Formal Concept analysis (ICFCA) was established to provide an annual opportunity for the exchange of ideas. Previous ICFCA conferences were held in Darmstadt (2003), Sydney (2004), Lens (2005), Dresden (2006), Clermont- Ferrand (2007), as well as Montreal (2008) and are evidence of vivid ongoing interest and activities in FCA theory and applications. ICFCA 2009 took place during May 21–24 at the University of Applied S- ences in Darmstadt. Beyond serving as a host of the very ?rst ICFCA in 2003, Darmstadt can be seen as the birthplace of FCA itself, where this discipline was introduced in the early 1980s and elaborated over the subsequent decades.
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