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When Database Systems Meet the Grid [article]

Maria A. Nieto-Santisteban, Alexander S. Szalay, Aniruddha R. Thakar, William J. O'Mullane, Jim Gray, James Annis
2005 arXiv   pre-print
We illustrate the benefits of combining database systems and Grid technologies for data-intensive applications.  ...  The SQL implementation runs an order of magnitude faster than the earlier Tcl-C-file-based implementation. We discuss why and how Grid applications can take advantage of database systems.  ...  Relational databases are well suited to look for objects meeting some criteria. However, when the searches are spatial, they usually require a special indexing system.  ... 
arXiv:cs/0502018v1 fatcat:52xi4nfh3rf2ri33ubutnnosey

Use of rational numbers in the design of robust geometric primitives for three-dimensional spatial database systems

Brian E. Weinrich, Markus Schneider
2005 Proceedings of the 2005 international workshop on Geographic information systems - GIS '05  
A necessary step in the implementation of three-dimensional spatial data types for spatial database systems and GIS is the development of robust geometric primitives.  ...  In the discretization of space, the developers of two-dimensional spatial data types have used simplicial complexes, realms or dual grids to produce robustness, but extending any of these to 3D is not  ...  It meets the facet when it touches or meets a boundary segment of the facet.  ... 
doi:10.1145/1097064.1097088 dblp:conf/gis/WeinrichS05 fatcat:3mmbtxpagrckfmxet4m72gvsjq

Atomic Commitment in Grid Database Systems [chapter]

Sushant Goel, Hema Sharda, David Taniar
2004 Lecture Notes in Computer Science  
ACPs have been proposed for homogeneous and heterogeneous distributed database management systems (DBMS). ACPs designed for these DBMS do not meet the requirement of Grid databases.  ...  In this paper we identify requirements for Grid database systems and then propose an ACP for grid databases, Grid-Atomic Commitment Protocol (Grid-ACP).  ...  We have proposed an ACP to meet Grid database requirements that uses sleep state for participating sites.  ... 
doi:10.1007/978-3-540-30141-7_7 fatcat:gr3fcwdg6fbv7mwmvb5fgbfmiq

Standards for databases on the grid

Susan Malaika, Andrew Eisenberg, Jim Melton
2003 SIGMOD record  
on enabling existing databases, file systems and large bodies of data to the grid.  ...  GFS-WG The GFS (Grid File Systems) group will have its first meeting at GGF9 in October 2003. At the time of writing, the group is preparing its charter.  ... 
doi:10.1145/945721.945739 fatcat:ntbzcbnytbe6zbfhq5cweqec4m

Implementation of Security in Distributed Systems - A Comparative Study [article]

Mohamed Firdhous
2012 arXiv   pre-print
This paper presents a comparative study of distributed systems and the security issues associated with those systems.  ...  Finally the security issues and the solutions were summarized and compared with each other.  ...  This module handles security threats from internal network, when certificated grid users carry out illegal (unauthorized) operations within the grid [21] .  ... 
arXiv:1211.2032v1 fatcat:znvftofey5gmpa4gk5iaefbxia

Design and Implementation of Power Grid Graph Data Management Platform Based on Distributed Storage

Hongbin Qiu, Aihua Zhou, Bin Hu, Bo Chai, Yan Song, Rui Chen
2019 IOP Conference Series: Earth and Environment  
Experiments on power grid topology data show that the graph data management platform proposed in this paper only takes nearly 80% of the time based on the graph database Neo4j when the scale is large enough  ...  , which can realize the storage and analysis of large-scale power grid topology data, and meet the needs of power grid informationization.  ...  data to meet the actual needs of power grid informationization.  ... 
doi:10.1088/1755-1315/234/1/012026 fatcat:z3tfdei3ancxbp3dyd4p4ugjsu

Mediators in the Architecture of Grid Information Systems [chapter]

Peter Brezany, A. Min Tjoa, Helmut Wanek, Alexander Wöhrer
2004 Lecture Notes in Computer Science  
In this paper, we describe our extensions and improvements to the reference implementation of the OGSA-DAI Grid Data Service prototype, an infrastructure that allows remote access to Grid databases, in  ...  By picturing general applicable access scenarios, we are showing the great need for such a Grid data mediation service as well as the compliance with important requirements of virtual data sources.  ...  This paper describes the design and implementation of the first (to our best knowledge) mediation system for databases integrated into the Grid.  ... 
doi:10.1007/978-3-540-24669-5_103 fatcat:dp75kasjobda5ftzn5xbbql5ru

Development and Application of Power Grid Planning Assistant System Based on GIS Platform

2017 DEStech Transactions on Computer Science and Engineering  
Based on advanced planning theory and database, the system has the characteristics of advanced technology, high intelligence, practical, flexible and so on.  ...  Aiming at the status the grid planning mainly based on history, combined with the experience of experts to make planning, this paper establishes a system based on GIS platform, which has a good use of  ...  sensing image database, historical database, power distribution system of the regional economic benefit of the public database.  ... 
doi:10.12783/dtcse/aita2017/16020 fatcat:hkv2oq65ojc5bg7py3shmovo24

Context-aware access control for pervasive access to process-based healthcare systems

Vassiliki Koufi, George Vassilacopoulos
2008 Studies in Health Technology and Informatics  
Moreover, Grid portal applications can be developed on a wireless and mobile infrastructure to execute healthcare processes which, in turn, can provide remote access to Grid database services.  ...  In such environments, the ability to provide an effective access control mechanism that meets the requirement of the least privilege principle is essential.  ...  access control mechanism is proposed that meets the needs of situations, often occurred in healthcare delivery, where the information requested by an authorized user needs to be available when and  ... 
pmid:18487810 fatcat:sdsfratdzvek5g2hg6i3xylu5e

Preserving Data Consistency in Grid Databases with Multiple Transactions [chapter]

Sushant Goel, Hema Sharda, David Taniar
2004 Lecture Notes in Computer Science  
Traditional distributed data management techniques may not meet the requirements of databases in grid environment.  ...  Research in data grid has focused on security issues, resource ownership, infrastructure development and replication issues assuming presence of single transaction in the system.  ...  Parallel database systems like bubba, gamma [11] can provide collective I / O but are not designed to meet the distributed nature of grid computing [7] .  ... 
doi:10.1007/978-3-540-24680-0_134 fatcat:h7iznt4jnrb5xj6da56kuygb4i

Optimized Tuning Method of PSS Parameters Based on Probabilistic Eigenvalues

Ji-feng LIANG, Long-chao CHEN, Wen-ping HU, Xiao-ming LI, Xiao-jun LI, Xiao-wei WANG
2018 DEStech Transactions on Environment Energy and Earth Science  
grid.  ...  The existing PSS parameter setting adopts a single machine infinity mathematical model, which does not adapt to the change of the power grid mode.  ...  Analysis of Examples In the multi-operation mode, when the generator set is not loaded with the PSS and when the PSS is installed, the system electromechanical oscillation mode is as shown in Table 1  ... 
doi:10.12783/dteees/epeee2018/26506 fatcat:jk3hxisqf5fcrpccf5tgdrt3nq

Research on Simulation of Distribution Network Engineering Scene Based on 3D GIS Technology

Qiong Wang, Yan Li, Xin Ning
2022 Wireless Communications and Mobile Computing  
With the rapid development of the power system and the increasing complexity of the power grid structure, users' demand for information-based management of the power distribution network is growing, and  ...  This paper discusses the current application characteristics and challenges of 3D GIS in the power system.  ...  Acknowledgments This paper is funded by the consulting project "Research on 3D digital handover and visualization application of distribution network based on power grid resource business center of State  ... 
doi:10.1155/2022/7736655 fatcat:oz73l5spzzcbvozbrhvcx5yjna

Trends in life science grid: from computing grid to knowledge grid

Akihiko Konagaya
2006 BMC Bioinformatics  
Results: This survey reviews the latest grid technologies from the viewpoints of computing grid, data grid and knowledge grid.  ...  Conclusion: Extending the concept of grid from computing grid to knowledge grid, it is possible to make use of a grid as not only sharable computing resources, but also as time and place in which people  ...  Acknowledgements The authors express special thanks for the member of the Open Bioinformatics Grid project and anonymous reviewers for their valuable discussion and useful comments for this manuscript.  ... 
doi:10.1186/1471-2105-7-s5-s10 pmid:17254294 pmcid:PMC1764466 fatcat:tlemqfzeljfdbaxa6gw5mid7f4

Study of next-generation infrastructure: InfiniBand HPC grid computing for telecommunications data center

Gyankamal Chhajed, Santosh Shinde, Rahul Jagtap, Venkatesh Raskotwar
2010 2010 3rd International Conference on Computer Science and Information Technology  
Grid computing is increasingly being viewed as the next phase of distributed computing.  ...  This paper propose an all InfiniBand grid computing proof of concept (PoC) to deploy "Database-as-a-Service" for missioncritical Oracle deployments in high-end transactional situations.  ...  Database performance testing demonstrated that the grid architecture and InfiniBand infrastructure would provide the scalability and performance required to meet the most demanding database application  ... 
doi:10.1109/iccsit.2010.5564782 fatcat:oauugkslzfgsdlu2yzhjn4drde

Research on Real-Time Database Recovery Method of Smart Grid System Based on IEC61970 Standard

Shuqing Lin, Allam Maalla, Guangyu Wu
2019 IOP Conference Series: Earth and Environment  
avoided, that can improve the survivability of real-time databases, protect the integrity of the real-time database of smart grids, and improve power grid dispatching system.  ...  Real-time database management system plays an important role in power grid system.  ...  When the system inquires the data, information related to the branch, the branch data should be extracted from the real-time database and stored directly in the CIM database.  ... 
doi:10.1088/1755-1315/242/2/022046 fatcat:ygsis673rrf6vhgm53dfccbr64
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