Journal of Operating Systems Development & Trends
Volume 6, Issue 1 (2019)
Published
Table of contents
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An Optimized Memory Allocation and Deallocation Method while Programming in Python
Abstract: AbstractMemory management is memory allocation and deallocation for objects done automatically at run time in Python. Programmers need not allocate or deallocate memory explicitly. Python Virtual Machine (PVM) handles these activities. Every Python object is stored in its own way, that is, different objects are stored in different methods. Reference counting algorithm is used for memory management in Python.Keywords: Allocation, deallocation, PVM, reference countingCite this ArticleS.S. Sugantha Mallika, I. Mettildha …
Published in Journal of Operating Systems Development & Trends · Vol. 6, Issue 1, 2019 · pp. 1–6 Read article
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Design of Discrete Time PID Controller
Abstract: This study describes the technique for implementation of discrete-time PID controller for automatic voltage regulator. It is most significant to derive a controller implementation technique for discrete-time systems. A new PID design pattern will be suggested for the without causality complications by considering the equivalent PID controller. A very most popular controller is the discrete-time closed-loop PID controller. Discrete time PID controllers have very fast responses like rise time and …
Published in Journal of Operating Systems Development & Trends · Vol. 6, Issue 1, 2019 · pp. 14–22 Read article
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Optimal Simultaneous Power and Rate Adaption of Communication System over Inverse Gamma Shadowed Channels
Abstract: Adaptive capacity analysis to model various emerging wireless fields like vehicle to vehicle communication, cellular and off-body communication based on inverse gamma shadowed fading mathematical model is derived. The derived algebraic model for optimal simultaneous power and rate adaption (OPRA) is mathematically tractable in terms of numerical and analytical handling. A novel closed form model for OPRA is derived in terms of Digamma and Meijer’ s-G functions. This derived exact …
Published in Journal of Operating Systems Development & Trends · Vol. 6, Issue 1, 2019 · pp. 23–26 Read article
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Rudrapani: A Solar Gesture Control Tanker
Abstract: Model of automatic gesture controlled robotic tanker Rudrapani is established for the defense sector of India. The first and foremost purpose of the Rudrapani is to protect soldier’s life during surgical strike or war. In this tanker, human hand signals are identified by the sensors and it tracks the guidelines given by hand of the soldier. As the soldier moves his hand, the accelerometer also changes accordingly and identifies the …
Published in Journal of Operating Systems Development & Trends · Vol. 6, Issue 1, 2019 · pp. 27–31 Read article
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Comparative Study of Different Types of Mixer Techniques
Abstract: Study of different types of mixer techniques will be presented in which Gilbert cell is used as core of the mixer as it provides high conversion gain, low power consumption and port-to-port isolation. Using Multi-Tanh Technique consists of multiple differential transconductance stage, we get a very good linearity but low conversion gain. Using Current bleeding technique, both linearity and conversion gain increase but increase in power consumption. Switch biasing technique …
Published in Journal of Operating Systems Development & Trends · Vol. 6, Issue 1, 2019 · pp. 7–13 Read article