Comparative Study of Concurrency Control Techniques in Distributed Databases

2014 ◽  
Author(s):  
Anand Mhatre ◽  
Rajashree Shedge
Keyword(s):  
Comparative Study ◽  
Concurrency Control ◽  
Distributed Databases ◽  
Control Techniques

scholarly journals Study of Concurrency Control Techniques in Distributed DBMS

2018 ◽  
Vol 2 (4) ◽  
Author(s):  
Manoj Kumar Gupta . ◽  
Rakesh Kumar Arora . ◽  
Bhoopesh Singh Bhati .
Keyword(s):  
Comparative Study ◽  
Concurrency Control ◽  
Phase Locking ◽  
Two Phase ◽  
Control Techniques ◽  
Very High

Concurrency control focuses on maintaining consistency and integrity of database through synchronized access. The complexity relating to concurrency control in a distributed context is very high as compared to centralized framework due to maintaining consistency within the multiple fragments / copies of the database. This paper consolidates and discusses various lock based concurrency control techniques for Distributed DBMS. The paper also presents a comparative study of various two phase locking based concurrency control techniques.

scholarly journals Concurrency control in a system for distributed databases (SDD-1)

1980 ◽  
Vol 5 (1) ◽  
pp. 18-51 ◽  
Author(s):  
Philip A. Bernstein ◽  
David W. Shipman ◽  
James B. Rothnie
Keyword(s):  
Concurrency Control ◽  
Distributed Databases

A Comparative Study on Intelligent & Adaptive Control Techniques on a Nonlinear Inverted Pendulum Cart Mechanism

2021 ◽  
Author(s):  
Akhil Krishnan ◽  
Parvathy Krishna. U ◽  
Mahipal Bukya ◽  
Princy Randhawa ◽  
Dimitris Piromalis
Keyword(s):  
Adaptive Control ◽  
Comparative Study ◽  
Inverted Pendulum ◽  
Control Techniques

scholarly journals A Comparative Study of DTC-SVM and FOC-SVM Control Techniques of Induction Motor Drive

2019 ◽  
Vol 14 (7) ◽  
pp. 2135-2140
Author(s):  
Dalya H. Al-Mamoori ◽  
Zaid H. Al-Tameemi ◽  
Fadhel A. Jumaa ◽  
Omar Muhammed Neda ◽  
Malik G. Al-Ghanimi
Keyword(s):  
Comparative Study ◽  
Induction Motor ◽  
Motor Drive ◽  
Induction Motor Drive ◽  
Control Techniques

A Comparative Study of Mass Based Vibration Dampers

2017 ◽  
Author(s):  
Mohamed Gharib ◽  
Mansour Karkoub
Keyword(s):  
Comparative Study ◽  
Passive Control ◽  
Initial Conditions ◽  
Free Vibrations ◽  
Decay Rates ◽  
Coupled Systems ◽  
Primary System ◽  
Operating Personnel ◽  
Control Techniques ◽  
Dynamic Structures

Undesired vibrations in structures, buildings, and machines lead to reduction in the life of the system and greatly affects the safety of the occupying or operating personnel. In addition, economic and time losses could result from needed repairs or reconstruction. Many control techniques, active and passive, have been devised over the years to reduce/eliminate the vibrations in the aforementioned systems. Passive vibration control techniques are favorable over the active ones due to their simplicity, ease of implementation, cost, and power consumption. In dynamic structures, such as large buildings, passive control techniques are favored over their active counterparts. The most common types of passive control devices are tuned mass and impact dampers. The advocates of each of these devices boasts advantages of the others; however, there have been no systematic studies to compare and quantify the effectiveness of each of these types of devices as well as their suitability for specific applications. In this paper, a comparative study between the tuned mass dampers and impact dampers is conducted. A one-story structure is used to show the effectiveness of each of these devices in absorbing the vibrations of the structure. The coupled systems are modeled and simulated under free vibrations. The time responses are acquired using the same geometric parameters, excitation, and initial conditions. The comparisons are based on the settling time and amplitude decay rates of the primary system using each damper type. The numerical results show that both dampers can produce similar dampening effects if the parameters are optimized; however, correlating the dampers parameters is a challenging problem in the field of vibration and control.

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