Research on Setting Calculation Dynamic Partitioning Based on Data Center

2013 ◽  
Vol 373-375 ◽  
pp. 1318-1323
Author(s):  
Xiao Bo Wang ◽  
Wei Song ◽  
Ren Min Gong ◽  
De Jun He
Keyword(s):  
Data Center ◽  
Operation Mode ◽  
Equivalent Model ◽  
Common Information ◽  
Operating Modes ◽  
Dynamic Partitioning ◽  
Common Information Model ◽  
Improve Calculation ◽  
Minimum Operating ◽  
Setting Calculation

This paper deals with the setting calculation data center (SCDC), which is based on Common Information Model (CIM). The construction consists of data splicing and graphics stitching. The splicing method of the information related to setting calculation gains more attention, especially the operation mode. Further more, it brings up a method called dynamic partitioning to improve calculation efficiency. It gives a proper element range relying on the maximum and the minimum operating modes provided by the grid. We only need to consider the network elements in this range to involve in setting calculation. Out of this range we use a simplified equivalent model. At last, the effectiveness and accuracy of the algorithm are verified by the result of the practical example and it is reasonable and effective in its application in engineering.

Study on Setting Calculation Data Center Based on Model Splicing

2013 ◽  
Vol 373-375 ◽  
pp. 1397-1400
Author(s):  
Chong Zhan Li ◽  
Gao Ming Liu ◽  
Wei Song ◽  
Xiao Bo Wang
Keyword(s):  
Data Center ◽  
Power Grid ◽  
Power Grids ◽  
Equivalent Model ◽  
Detailed Model ◽  
Common Information ◽  
Internal Storage ◽  
Common Information Model ◽  
Model Partitioning ◽  
Setting Calculation

This paper splices power grids detailed model of all dispatching areas to form the whole power grids detailed model through power grid model splicing technology based on common information model (CIM). This paper introduces the solution to managing the equivalent model, partitioning the splicing boundary, disposing the device on the border etc. Specific to setting calculation based on the whole power grid, some splicing solutions are also proposed concerning calculation rate and problems demanding large internal storage.

scholarly journals An Interoperability Platform Enabling Reuse of Electronic Health Records for Signal Verification Studies

2016 ◽  
Vol 2016 ◽  
pp. 1-18 ◽  
Author(s):  
Mustafa Yuksel ◽  
Suat Gonul ◽  
Gokce Banu Laleci Erturkmen ◽  
Ali Anil Sinaci ◽  
Paolo Invernizzi ◽  
...  
Keyword(s):  
Real Life ◽  
Case Series ◽  
Background Information ◽  
Data Sets ◽  
Local Data ◽  
Lombardy Region ◽  
Common Information ◽  
Spontaneous Reports ◽  
Wide Range ◽  
Common Information Model

Depending mostly on voluntarily sent spontaneous reports, pharmacovigilance studies are hampered by low quantity and quality of patient data. Our objective is to improve postmarket safety studies by enabling safety analysts to seamlessly access a wide range of EHR sources for collecting deidentified medical data sets of selected patient populations and tracing the reported incidents back to original EHRs. We have developed an ontological framework where EHR sources and target clinical research systems can continue using their own local data models, interfaces, and terminology systems, while structural interoperability and Semantic Interoperability are handled through rule-based reasoning on formal representations of different models and terminology systems maintained in the SALUS Semantic Resource Set. SALUS Common Information Model at the core of this set acts as the common mediator. We demonstrate the capabilities of our framework through one of the SALUS safety analysis tools, namely, the Case Series Characterization Tool, which have been deployed on top of regional EHR Data Warehouse of the Lombardy Region containing about 1 billion records from 16 million patients and validated by several pharmacovigilance researchers with real-life cases. The results confirm significant improvements in signal detection and evaluation compared to traditional methods with the missing background information.

Model of Noise Source for HF Interference Calculation in a Converter Station

2007 ◽  
Vol 8 (6) ◽  
Author(s):  
Quanrui Hao ◽  
Zheng Xu
Keyword(s):  
Empirical Model ◽  
Noise Source ◽  
Equivalent Model ◽  
Basic Principles ◽  
Operating Modes ◽  
Snubber Circuit ◽  
Power Line Carrier ◽  
Actual Spectrum ◽  
Physical Quantities ◽  
Fft Analysis

For high-frequency (HF) interference in an HVDC converter station, the modeling of the noise source which causes interference with the power line carrier (PLC) remains a problem. Based on the profound analysis of the basic principles on which HF noise in PLC band is produced during the commutation process, the equivalent model of the HVDC valve with a snubber circuit is applied to the simulation of the GUI-GUANG HVDC project in PSCAD/EMTDC. Then spectrum plots of the noise source in the frequency domain are obtained by FFT analysis of the voltage waveforms gained from the simulation. Through analyzing the spectrum characteristics of the noise source in various operating modes, the main factors influencing the level of HF noise are found. Furthermore, a modified empirical model used to calculate the level of the noise source is introduced, with particular explanation of the physical quantities used in the model. The spectra of the noise source gained from the modified empirical model and from the simulation are compared with an actual spectrum based on the GUI-GUANG HVDC project. The results show that the modified empirical model can meet the requirement of HF interference calculation.

In the Face of Cybersecurity: How the Common Information Model Can Be Used

2016 ◽  
Vol 14 (1) ◽  
pp. 94-104 ◽  
Author(s):  
Paul Skare ◽  
Herbert Falk ◽  
Mark Rice ◽  
Jens Winkel
Keyword(s):  
Information Model ◽  
Common Information ◽  
Common Information Model ◽  
The Face ◽  
The Common
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