The Federated Databases and System: A New Generation of Advanced Database Systems

1990 ◽  
pp. 186-190 ◽  
Author(s):  
David K. Hsiao ◽  
Magdi N. Kamel ◽  
C. Thomas Wu
Keyword(s):  
Database Systems ◽  
Federated Databases ◽  
System A ◽  
New Generation

THE DEVELOPMENT DESIGN MODEL IN THE COMPETITIVENESS OF INTELLIGENT BUSINESS ORGANISATIONS

2007 ◽  
Vol 14 (2) ◽  
pp. 271-280
Author(s):  
Christian Stipanović ◽  
Suzana Bareša
Keyword(s):  
High Growth ◽  
First Century ◽  
Design Model ◽  
Employee Empowerment ◽  
Past Century ◽  
Value System ◽  
Business Organisation ◽  
System A ◽  
New Development ◽  
New Generation

Croatian hotel and tourism companies are failing to keep abreast of modern tourism trends in the globalised marketplace of the twenty-first century. The imperative is to innovate the development design model based on a new value system. A precondition to success is transforming sluggish, inert companies that live according to the mindset of the past century into high-growth intelligent organisations capable of actively creating the future.The intelligent business organisation, founded on a new generation of managers, employee empowerment, software solutions and expert systems, needs to manage data and information to generate new development trends. The aim is to valorise intellectual capital and information in making innovations and creating new solutions in order to be able to stand up to rivals and more fully meet the needs of clients.

CODAR

2003 ◽  
pp. 266-297
Author(s):  
Zahir Tari ◽  
Abdelkamel Tari ◽  
Surya Setiawan
Keyword(s):  
Business Processes ◽  
Database Systems ◽  
Complex Problem ◽  
Heterogeneous Databases ◽  
Business Organizations ◽  
Data Repositories ◽  
Web Based ◽  
Business Applications ◽  
Core Elements ◽  
New Generation

Connecting heterogeneous databases through the World Wide Web (WWW) is crucial for most business organizations. The underlying complex problem is the handling of heterogeneity and communication between different data repositories (or database systems). Such interoperability is crucial as it enables the integration of business processes across different business organizations, and therefore becomes a key issue within the new generation of Web-based business applications (called Web Services). CORBA (Common Object Request Broker Architecture) provides protocols and components that allow interoperability between different software platforms (Tari & Bukhres, 2001), such as C++ and Java. However, CORBA does not deal with WWW-based interoperability. In this paper we propose an extension of one of the core elements of CORBA, called Portable Object Adapter (POA), to deal with persistency of business information. The proposed extension, called CODAR, manages the whole life cycle of persistent objects, including activation, deactivation, instantiation, and deletion. At the end of this paper we describe an extension of CODAR to deal with performance by including advanced caching and prefetching techniques.

Stochastically Balancing Trees for File and Database Systems

2013 ◽  
Vol 4 (1) ◽  
pp. 58-70
Author(s):  
Aziz Barbar ◽  
Anis Ismail
Keyword(s):  
Data Storage ◽  
Database Systems ◽  
The Self ◽  
List Structure ◽  
Indexing Structure ◽  
A New Technique ◽  
Storage Technologies ◽  
New Generation ◽  
Disk Access ◽  
Constant Improvement

With the constant improvement in data storage technologies, a new generation of indexing mechanisms is to be created to exploit the improvements in disk access speeds that were previously impractical. The self-balancing tree B-Tree, has long been the indexing structure of choice for reducing the amount of disk access at the expense of size of data block to be read or written. A new technique based on a dynamically growing multilevel list structure, which is stochastically balanced rather than self balanced, is discussed and compared to the B-Tree. An analogy between the technique and the structures is established to better compare the computational complexities.

scholarly journals A Comprehensive Review on Multiband Reconfigurable Antenna

2021 ◽  
pp. 377-388
Author(s):  
Preeti Rani ◽  
◽  
Tejbir Singh ◽  
Meenu Kaushik ◽  
Vishant Gahlaut
Keyword(s):  
Wireless Communication ◽  
High Performance ◽  
Wireless System ◽  
The Past ◽  
Multiband Antennas ◽  
Single Antenna ◽  
Interference Level ◽  
System A ◽  
New Generation

The advancement of wireless communication is markedly accountable from the past two decades. A variety of designs and techniques have been established in the domain of reconfigurable multiband antennas for different wireless services. Now a days, a high quality of communication with reduced size is required for new generation wireless system. A multiband reconfigurable functionality offers a flexible and high-performance design by single antenna only. A brief review on multiband antenna with different reconfigurable techniques is presented in this paper. Moreover, the new possibilities for future wireless communication system have been demonstrated. A reconfigurable system along with minimal interference level over the fixed or non-reconfigurable transceivers has been discussed in detail.

The setting of the task of detection and prevention of dangerous proximity as part of a prospective air traffic management system

2018 ◽  
pp. 25-34
Author(s):  
A. V. Strukova
Keyword(s):  
Traffic Management ◽  
Management System ◽  
Air Traffic Management ◽  
Air Traffic ◽  
Surveillance Systems ◽  
Systematic Description ◽  
System A ◽  
Traffic Management System ◽  
New Generation

The article deals with the tasks of detection and prevention of dangerous encounters as part of a prospective air traffic management system. A systematic description of the introduction of a new generation of communication, navigation and surveillance systems that provides technical capabilities for the modernization of the air traffic management system is given. 

scholarly journals The challenges of mining logging data in ATLAS

2019 ◽  
Vol 214 ◽  
pp. 04017
Author(s):  
Elizabeth J Gallas ◽  
Nurcan Ozturk
Keyword(s):  
Auxiliary Information ◽  
Database Systems ◽  
Complete Picture ◽  
Resource Usage ◽  
Event Data ◽  
Particle Collisions ◽  
Log Files ◽  
System A ◽  
Accurate Picture ◽  
Computing Grid

Processing ATLAS event data requires a wide variety of auxiliary information from geometry, trigger, and conditions database systems. This information is used to dictate the course of processing and refine the measurement of particle trajectories and energies to construct a complete and accurate picture of the remnants of particle collisions. Such processing occurs on a worldwide computing grid, necessitating wide-area access to this information. Event processing tasks may deploy thousands of jobs. Each job calls for a unique set of information from the databases via SQL queries to dedicated squids in the ATLAS Frontier system, a system designed to pass queries to the database only if that result has not already been cached from another request. Many queries passing through Frontier are logged in an Elastic Search cluster along with pointers to the associated tasks and jobs, various metrics, and states at the time of execution. PanDA, which deploys the jobs, stores various configuration files as well as many log files after each job completes. Information is stored at each stage, but no system contains all information needed to draw a complete picture. This presentation describes the challenges of mining information from these sources to compile a view of database usage by jobs and tasks as well as assemble a global picture of the coherence and competition of tasks in resource usage to identify inefficiencies and bottlenecks within the overall system.

scholarly journals Concepts of Hyperloop Wireless Communication at 1200 km/h: 5G, Wi-Fi, Propagation, Doppler and Handover

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 983
Author(s):  
Ali Tavsanoglu ◽  
César Briso ◽  
Diego Carmena-Cabanillas ◽  
Rafael B. Arancibia
Keyword(s):  
Wireless Communication ◽  
Communication Systems ◽  
High Capacity ◽  
Careful Study ◽  
System A ◽  
5G Network ◽  
Vacuum Tubes ◽  
Guided Propagation ◽  
Confined Environment ◽  
New Generation

The new generation of capsules that circulate through vacuum tubes at speeds up to 1200 km/h, which is being developed, demands communication systems that can operate at these speeds with high capacity and quality of service. Currently, the two technologies available are the new generation of 802.11ax networks and 5G NR. Using these technologies at such high speeds in a confined environment requires a careful study and design of the configuration of the network and optimization of the physical interface. This paper describes the requirements for critical and business communications, proposing a WLAN and 5G network design based on the analysis of the propagation characteristics and constraints of vacuum tubes and using propagation measurements and simulations made in similar environments at frequencies of 2.5/5.7/24 GHz. These measurements and simulations show that propagation losses in this environment are low (4–5 dB/100 m), as a consequence of the guided propagation, so that the use of bands is preferred. Finally, considering the propagation constraints and requirements of a Hyperloop system, a complete wireless communication system is proposed using two networks with 802.11 and 5G technology.

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