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A Big Data approach for multi-experiment data management

INTERNATIONAL JOURNAL OF GRID AND UTILITY computing 2019年第2期10卷 159-167页

作者： Pardi, Silvio Russo, Guido INFN Str Comunale Cinthia Naples Italy Univ Napoli Federico II Naples Italy

Data sharing among similar experiments is made difficult by the usage of ad hoc directory structures, data and metadata naming and by the large variety of access protocols. The Big Data paradigm provides the context to overcome the current heterogeneity problems. In this work, we present a study for a Global Storage Ecosystem designed to manage large and distributed datasets, in the context of physics experiments. The proposed environment is based on HTTP/WebDav protocols, together with modern data searching technologies, according to the Big Data paradigm. The main goal is to aggregate multiple storage areas and to simplify the operations of data retrieval, using Elasticsearch and Apache Lucene library. This platform offers to physicists an effective instrument to simplify the multi-experiment data analysis without knowing a priori the directory format or the data itself. As a proof of concept, we realised a prototype over the ReCaS Supercomputing infrastructure in Napoli.

关键词： Big Data data federation physics experiments HTTP storage computing model

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Large deflection response of restrained steel beams under fire and explosion loads

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SPRINGERPLUS 2016年第1期5卷 752页

作者： Xi, Feng Shandong Jianzhu Univ Sch Civil Engn Jinan 250101 Peoples R China

A numerical study on the response of steel beams to fire and explosion is presented in this paper. First, a unified computing model, which can be used to simulate the behaviour of beams under four loading scenarios that involve fire and explosion or impact, is constructed. The proposed technique allows complete transparency of the influence of the various parameters on the structural behaviour. Second, the effects of load level on critical temperature are analyzed for various static and explosion load ratios. Two cases of explosion and fire loading sequences are compared, it is shown that the critical temperature of the beam subjected to fire followed by an explosion is lower than that of the beam subjected to an explosion followed by fire. The influence of temperature on the p-i diagram is investigated, an iso-damage surface is introduced to distinguish safe and unsafe regions. Third, the limiting temperature criteria are further examined. That is, the first and second limiting temperatures can be determined when the dimensional catenary force is equal to zero or to one, which corresponds to the bending or stretching plastic hinge, respectively.

关键词： Restrained steel beam Fire Blast loads computing model Large deflection Catenary effect Dynamic response Limiting temperature Pressure-impulse diagram Numerical study

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Process of Petri Nets Extension

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Wuhan University Journal of Natural Sciences 2006年第2期11卷 351-354页

作者： ZHOU Guofu HE Yanxiang DU Zhuomin School of Computer Wuhan University Wuhan 430072 Hubei China

To describe the dynamic semantics for the network computing, the concept on process is presented Based on the semantic model with variable, resource and relation. Accordingly, the formal definition of process and the mapping rules from the specification of Petri nets extension to process are discussed in detail respectively. Based on the collective concepts of process, the specification of dynamic semantics also is constructed as a net system. Finally, to illustrate process intuitively, an example is specified completely.

关键词： network computing computing model process Petri nets

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LHCb computing

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NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 2001年第1-2期462卷 265-269页

作者： Corti, G CERN Div EP CH-1211 Geneva 23 Switzerland

The LHCb computing model is strongly influenced by the copious amount of data that will be produced by the experiment and by the time to process them. At present the experiment is in the process of migrating its software applications to Object Oriented technology. The software strategy of the experiment is to have an architecture and a framework built on independent components on which to base all experimental data processing applications. (C) 2001 Elsevier Science B.V. All rights reserved.

关键词： LHCb software requirements computing model frame work

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Membrane models in Big Data Process on GPU-accelerating Systems 6

Membrane Models in Big Data Process on GPU-accelerating Syst...

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6th International Conference on Instrumentation and Measurement, Computer, Communication and Control (IMCCC)

作者： Zhang, Yuanhan Ji, Zhenzhou Harbin Inst Technol Dept Comp Sci & Engn Harbin 150001 Peoples R China

ISBN: (纸本)9781509011957

With the development of computer science and technology and the further progress of IC fabrication, GPU-accelerating computer systems are more and more widely used to provide higher performance on HPCs(High Performance Computers) and even regular desktop and laptop computers. Almost the same time, the Internet era and the rise of mobile Internet produced PBs of data. Bulk data are useless until carefully chosen, filtered, and analyzed, so that Big Data became a million class business very soon. Using the higher and more parallel GPU computing resources to solve the problems in current Big Data is a new field. In this paper a model based on membrane computing to process big data is proposed to explain the link between big data and GPU-acceleration.

关键词： computing model membrane computing GPGPU Big Data

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Spectral Analysis of the Structures due to Traffic 23

Spectral Analysis of the Structures due to Traffic

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23rd Russian-Polish-Slovak Seminar on Theoretical Foundation of Civil Engineering (RSP) (TFoCE)

作者： Papan, Daniel Papanova, Zuzana Univ Zilina Fac Civil Engn Dept Struct Mech Univ 8215-1 Zilina 01025 Slovakia

The paper deals with spectral analysis of two selected roadway bridges loaded with traffic seismicity due to road and railway traffic. The frequency parameters were obtained from computing model via FEM software. Spectral parameters comparison between theoretical and experimental results was realised. The traffic means effects on soil in frequency and amplitude domain was necessary for bridge spectral analysis. (C) The Authors. Published by Elsevier Ltd.

关键词： spectral analysis computing model random vibration stochastic natural frequencies natural modes

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Remote Health Monitoring through an Integration of Wireless Sensor Networks, Mobile Phones & Cloud computing Technologies

Remote Health Monitoring through an Integration of Wireless ...

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3rd IEEE Global Humanitarian Technology Conference (GHTC)

作者： Shah, Sajjad Hussain Iqbal, Assad Shah, Syed Shaukat Ali Bahria Univ Dept Comp Sci Islamabad Pakistan Univ Peshawar Dept Comp Sci Peshawar Pakistan

ISBN: (纸本)9781479924011;9781479924028

Wireless sensor networks have several applications of direct and indirect benefit to humanity. These applications can be further enhanced by integrating local wireless sensor networks, internet and cloud technology for storing sensors' data. Our proposed application is based on the same concept. The existing processes of collection and analysis of patients' information requires a lot of effort and additionally they are prone to errors and unnecessary delays in real time information accessibility. These issues limit monitoring and diagnostic capabilities to clinics and hospital only. Wireless sensors provide the capability of information exchange among interconnected on-hand health monitoring equipments. The introduction of this concept is based on wireless sensor networks and utility computing. The information can be stored on "cloud" which will be accessible to medical staff. The proof-of-concept aim is to integrate commodity computing to predecessor medical devices, which should ensure simple integration and cost effectiveness into introduction of a system for health monitoring in remote areas for the best benefit of humanity.

关键词： Cloud computing Cloud educational operating System computing model remote health monitoring

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LHCb computing

LHCb computing

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7th International Conference on B-Physics at Hadron Machines

作者： Corti, G CERN Div EP CH-1211 Geneva 23 Switzerland

关键词： LHCb software requirements computing model frame work

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Dynamic Load of Vehicle on Asphalt Pavement

Dynamic Load of Vehicle on Asphalt Pavement

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6th International Scientific Conference on Dynamic of Civil Engineering and Transport Structures and Wind Engineering (DYN-WIND)

作者： Melcer, Jozef Univ Zilina Zilina 01026 Slovakia

ISBN: (纸本)9783038351979

Asphalt pavements are the transport structures subjected to dynamic effect of moving vehicles. Many effects influence the real values of vehicle tire forces. Road unevenness represents the most important factor influencing the magnitudes of tire forces. Such data can be obtained by numerical or experimental way. The paper deals with the numerical simulation of moving load effect on asphalt pavements and with numerical simulation of tire forces in relation to the road unevenness.

关键词： dynamic load asphalt pavement vehicle computing model road unevenness numerical solution

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An integrated method of raster and vector for generating Voronoi Diagram based on linear quadtree structure

An integrated method of raster and vector for generating Vor...

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15th National Symposium on Remote Sensing of China - Remote Sensing of the Environment

作者： Li Jiatian Zhao Renliang Chen Jun CUMT Sch Resources & Safety Engn Beijing 100083 Peoples R China Natl Geomat Ctr China Beijing 100044 Peoples R China

ISBN: (纸本)081946256X

Voronoi Diagram is a fundamental geometric structure of space partition. To generate the Voronoi diagrams of the line or polygon objects, the raster method is more convenient than the vector method, while raster generation works better with the generation of full-feature Voronoi Diagram. But for the vector data, the computation in the raster method is realized based on the partition of space. So the generation algorithm is high level of space complexity and the obtaining the neighbors of pixel is very difficult. In order to resolve these problems, a generation of Voronoi Diagram with raster and vector properties based on linear quadtree structure is introduced. The main principle is to reduce the space complexity produced by the partition of space and obtains the neighbors by the spatial index which the linear quadtree structure itself is regarded as. The computing model of backward dilation based on mathematical morphology and several optimized computing characteristics of the model are proposed. The test proves that the time complexity of the method is lower than that of uniform grid structure and that of common quadtree structure, and the space complexity is lower than that of uniform grid structure.

关键词： Voronoi diagram linear quad tree structure hierarchical distance computation backward dilation spatial index computing model

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