Research on Semi-Structured and Unstructured Data Storage and Management Model for Multi-Tenant

2019 ◽  
Vol 12 (1) ◽  
pp. 49-62
Author(s):  
Xin Hu ◽  
Yabin Xu
Keyword(s):  
Data Storage ◽  
Unstructured Data ◽  
Management Model ◽  
Storage Model ◽  
Access Rate ◽  
Management Technology ◽  
Table Data ◽  
Data Isolation ◽  
And Storage ◽  
High Storage

In order to solve the problem of data isolation and storage caused by the growth of semi-structured and unstructured data in SaaS mode, the multiple-universal table data storage and management model based on XML is proposed. XML management technology is introduced into the model, and using it to improve and optimize the multiple-universal table data storage model, and the model can effectively solve the problem of storage and management of semi-structured and unstructured data. Comparative experimental results show that, the method has high storage density and access rate, can be very good to meet the customized demand for multi-tenant data.

The Research on Hadoop and Cloud Computing-Based Mass Data Storage Model of Computation

2011 ◽  
Vol 130-134 ◽  
pp. 2899-2902 ◽  
Author(s):  
Fang Peng ◽  
Qing Yun Huang ◽  
Zhao Peng Qian
Keyword(s):  
Cloud Computing ◽  
Data Storage ◽  
Business Model ◽  
Low Cost ◽  
Massive Data ◽  
Distributed Software ◽  
Computer Cluster ◽  
Storage Model ◽  
New Business ◽  
And Storage

Cloud computing as a new business model that allows the user according to their needs using the resource pool which formed by data on a large number of computers. Hadoop, as the distributed software platform is the most widely use of cloud computing. It can run applications on the computer cluster which formed by a large number of low-cost hardware devices, and turn the calculation into data completely then deal with massive data. This article describes the basic framework of Hadoop and the advantages of dealing with massive data, the concept of cloud computing, and research of computing and storage model which base on Hadoop and cloud computing.

Sugar beet from field clamps -harvest quality and storage loss

2018 ◽  
pp. 639-647 ◽  
Author(s):  
Christa Hoffmann
Keyword(s):  
Sugar Beet ◽  
Surface Damage ◽  
Invert Sugar ◽  
Root Tip ◽  
Soil Conditions ◽  
Storage Losses ◽  
Commercial Sugar ◽  
And Storage ◽  
High Storage

Harvest quality of sugar beet varies according to soil conditions, harvester type and setting, and variety, too. Harvest quality may affect storage losses, in particular when injuries occur. To determine the harvest quality of commercial sugar beet and to quantify resulting storage losses, 92 commercial sugar beet clamps were sampled across Germany and information about harvest conditions were gathered. At IfZ, soil tare, leaf residues, topping diameter, root tip breakage and surface damage of the beets were determined. The beets were stored in 6 replicates in a climate container at 9°C for 10 weeks. The results demonstrate a rather good harvesting quality of sugar beet in Germany. Soil moisture at harvest did not affect harvest quality and storage losses. Very light, but also heavier soils lead to inferior harvest quality (soil tare, root tip breakage, damage) and slightly higher storage losses compared to the typical loam soils. Significant differences occurred between the three harvester types (companies). In general, high root tip breakage and severe surface damage of the beet was related to a high infestation with mould and rots, high invert sugar contents after storage and high sugar losses. Out of the five most planted varieties, in particular one turned out to be very susceptible to damage, resulting in high storage losses. The factor analysis suggests that the effect of harvester / harvester setting and of variety is more important for harvest quality and storage losses of sugar beet than soil conditions at harvest. Therefore, attention should be paid to optimize these conditions.

A System Architecture for Data Storage in the Cloud

2015 ◽  
Vol 3 (2) ◽  
Author(s):  
Maryam Hammami ◽  
Hatem Bellaaj
Keyword(s):  
Data Storage ◽  
System Architecture ◽  
Cloud Storage ◽  
The Other ◽  
Important Data ◽  
Work In Progress ◽  
Flexible System ◽  
Other Hand ◽  
Data Manager ◽  
And Storage

The Cloud storage is the most important issue today. This is due to a rapidly changing needs and a huge mass of varied and important data to back up. In this paper, we describe a work in progress and propose a flexible system architecture for data storage in the Cloud. This system is centered on the Data Manager module. This module provides various functions such as the dispersion of data in fragments, encryption and storage of fragments... etc. This architecture proves to be very relevant. It ensures consistency between different components. On the other hand, it ensures the security and availability of data.

scholarly journals Rapid Gas Hydrate Formation—Evaluation of Three Reactor Concepts and Feasibility Study

Molecules ◽  
2021 ◽  
Vol 26 (12) ◽  
pp. 3615
Author(s):  
Florian Filarsky ◽  
Julian Wieser ◽  
Heyko Juergen Schultz
Keyword(s):  
Gas Hydrates ◽  
Gas Hydrate ◽  
Hydrate Formation ◽  
Synthetic Natural Gas ◽  
Operation Conditions ◽  
Gas Hydrate Formation ◽  
Gas Conditioning ◽  
And Storage ◽  
Economic Considerations ◽  
High Storage

Gas hydrates show great potential with regard to various technical applications, such as gas conditioning, separation and storage. Hence, there has been an increased interest in applied gas hydrate research worldwide in recent years. This paper describes the development of an energetically promising, highly attractive rapid gas hydrate production process that enables the instantaneous conditioning and storage of gases in the form of solid hydrates, as an alternative to costly established processes, such as, for example, cryogenic demethanization. In the first step of the investigations, three different reactor concepts for rapid hydrate formation were evaluated. It could be shown that coupled spraying with stirring provided the fastest hydrate formation and highest gas uptakes in the hydrate phase. In the second step, extensive experimental series were executed, using various different gas compositions on the example of synthetic natural gas mixtures containing methane, ethane and propane. Methane is eliminated from the gas phase and stored in gas hydrates. The experiments were conducted under moderate conditions (8 bar(g), 9–14 °C), using tetrahydrofuran as a thermodynamic promoter in a stoichiometric concentration of 5.56 mole%. High storage capacities, formation rates and separation efficiencies were achieved at moderate operation conditions supported by rough economic considerations, successfully showing the feasibility of this innovative concept. An adapted McCabe-Thiele diagram was created to approximately determine the necessary theoretical separation stage numbers for high purity gas separation requirements.

Design of FPGA-Based Missile-Borne Image Acquisition and Storage Recorder

2015 ◽  
Vol 713-715 ◽  
pp. 1448-1451
Author(s):  
Lin Lu ◽  
Yan Feng Zhang ◽  
Xiao Feng Li
Keyword(s):  
Real Time ◽  
Data Storage ◽  
Storage System ◽  
Large Data ◽  
Engineering Practice ◽  
Image Storage ◽  
Video Images ◽  
Stable Performance ◽  
And Storage ◽  
Time Image

The high-altitude missile and other special application occasions have requirements on image storage system, such as small size, high storage speed, low temperature resistance, etc. Commonly used image storage system in the market cannot meet such requirement. In the paper, real-time image storage system solutions on missile based on FPGA should be proposed. The system mainly consists of acquisition module and memory reading module. The whole system adopts FPGA as main control chip for mainly completing real-time decoding and acquisition on one path of PAL format video images, reading and writing of NandFlash chipset, erasure, bad block management and so on. The solution has passed various environmental tests with stable performance, large data storage capacity and easy expansion, which has been used in engineering practice.

Data Storage Layout for Object-Based De-Duplication System

2013 ◽  
Vol 303-306 ◽  
pp. 2284-2288
Author(s):  
Fang Yan ◽  
Yu An Tan
Keyword(s):  
Data Storage ◽  
Storage System ◽  
Unstructured Data ◽  
Effective Solution ◽  
Advanced Method ◽  
Data Object ◽  
Object Based ◽  
The World ◽  
Long Time ◽  
Reduce Energy Consumption

The world is increasingly awash in more and more unstructured data. Object-based data de-duplication is the current most advanced method and is the effective solution for detecting duplicate data. We developed an energy saving policy for conventional disk based RAID systems. According to the characteristics of object-based data de-duplication, we introduce object layout strategies for unstructured data applications; disk accesses are concentrated in a part of the disks in a long time which is conducive to scheduling other disks into standby or shutdown mode. Our proposed methods reduce energy consumption of de-duplication storage system.

Architecture and Storage Model for Multimedia Documents

1996 ◽  
pp. 345-371
Author(s):  
Ahmed Karmouch ◽  
James Emery ◽  
Omar Megzari
Keyword(s):  
Multimedia Documents ◽  
Storage Model ◽  
And Storage
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