International Journal of Innovative Technology and Interdisciplinary Sciences <p><em>International Journal of Innovative Technology and Interdisciplinary Sciences (IJITIS)<strong>&nbsp;</strong>is aimed to disseminate original research in all fields of Technology and&nbsp;Engineering and presents the latest development and achievements in scientific research in Estonia and overseas to the world’s community to stimulate and promote academic exchange between Estonia and foreign scientists, engineers, and researchers. Original, innovative and novel&nbsp;contributions providing insight into the use of analytical, computational modeling as well as experimental research results are encouraged.&nbsp;<strong>IJITIS&nbsp;</strong>are edited by an international board of distinguished local and foreign scientists, researchers. The objective of publishing this journal in English is to strengthen international exchange in academic research.</em></p> Talent under Liberty in Technology (TULTECH) Registrikood: 80569671 en-US International Journal of Innovative Technology and Interdisciplinary Sciences 2613-7305 Waveform based Inverse Kinematics Algorithm of Kinematically Redundant 3-DOF Manipulator <p>This paper presents a new approach to the problem of inverse kinematics by modelling robot arm movements as signals generated from algebra-based solutions. The inverse kinematics of point P(xP,yP) are modelled as sinusoidal functions with mechanical constraints. Unique wave forms occur at each point in the workspace. There are four types of inverse kinematic waves depending on how sinusoidal waves cross the value of mechanical constraints. In terms of tracking the path, the robot's arm produces complex waves that produce the desired movement. Due to mechanical constraints, many points in the workspace have the bandwidth where the signal is produced only at limited intervals from the angular domain. Tracks must be stored at these appropriate intervals, which build bandwidth tunnels, completely from the initial configuration to the final configuration. Simulations will be carried out using 3-DOF series planar robots to track highly complex mathematical curves. With a wave-based approach, the solution of the IK problem can benefit from wave characteristics such as the superposition principle.</p> Setyamartana Parman Affiani Machmudah Copyright (c) 2020 International Journal of Innovative Technology and Interdisciplinary Sciences 2020-04-14 2020-04-14 3 2 407 428 10.15157/IJITIS.2020.3.2.407-428 Ultrasonic based easy parking system based on Microcontroller <p>The prime objective of this research is to avoid collision and reliable vehicle parking system. Ultrasonic sensor plays a vital role in grain level filling in a container because fill level is calculated by measuring the distance information.Parking sensor system use either electromagnetic or ultrasonic sensor which alert the driver about the obstacles in the path while parking. Basically,the sensor detects the nearby objects. It will be help in terms of unplanned parking, also one kind of wasting time and wasting fuel. So,in a short time one could easily find a parking slot with low consuming fuel. Principally,drivers are frustrated while waiting for the parking for a longer time. Therefore,this challenge can be possible through the ultrasonic sensor.</p> Badri Narayan Mohapatra Rashmita Kumari Mohapatra Manthan Mirpagar Altamashali Quershi Copyright (c) 2020 International Journal of Innovative Technology and Interdisciplinary Sciences 2020-04-14 2020-04-14 3 2 429 434 10.15157/IJITIS.2020.3.2.429-434 Mini-Review on structural performance of fiber reinforced geopolymer concrete <p>Development of alternate eco-friendly and sustainable construction solutions for meeting rising infrastructural demands have become an attractive area of research. The purpose of this study is to demonstrate and review past research works based on fiber reinforced geopolymer concrete (FRGC). Geopolymers are highly promising low-carbon, cement-less composite materials possessing enhanced mechanical and serviceability criteria in comparison to OPC based construction materials. These inorganic composites are made up of industrial wastes with higher alumina and silica content as base material using ‘alkali activating solution’ as binder agent, but are quasi-brittle in nature hence, their ductility can be improved by proper reinforcing materials preferably “fibers”. This study discusses and suggests that FRGC exhibits good thermal stability, light weight and lesser shrinkage property by understanding of previous works. Thus, rapid innovation of fiber reinforced geopolymers is highly anticipated in the near future. This paper also reviews development of FRGC and its properties; fresh and hardened. The recent developments regarding serviceability (Deflection, Crack width Control and thermal stability) are highlighted based on past literatures. The outcomes of this review paper will serve to provide a technical background of FRGC for researchers for conducting future experimental works.</p> Jyotirmoy Mishra Rutumbhara Panigrahi Copyright (c) 2020 International Journal of Innovative Technology and Interdisciplinary Sciences 2020-04-15 2020-04-15 3 2 435 442 10.15157/IJITIS.2020.3.2.435-442 Application of Gauss - Lanczos Algorithm to Determine Low Modes Density of Dirac Operator <p>There are numerous applications in physics, especially in Lattice QCD, where is required to bound entries and the trace of the inverse and the determinant of a large sparse matrix. This paper review one of the most popular methods which are used in lattice QCD to compute the determinant of the lattice Dirac operator: Gaussian integral representation. A modified algorithm can be used for other purposes too, for example for the determination of the density of eigenvalues of the Dirac operator near the origin. This because in Lattice QCD, low-lying Dirac modes are a suitable tool to understand chiral symmetry since they encode the nature of quark propagation as well as the condensate itself in the chiral regime. The formation of a non-zero chiral condensate is an effect of the accumulation of the low modes of the Dirac operator near zero. We review the development in Krylov subspace evaluation of matrix functions and we develop a practical numerical algorithm to achieve a reliable determination of the density of eigenvalues of the Dirac operator near the origin using the Gauss-Lanczos quadrature. We utilize the optimal properties of Krylov subspaces in approximating the distribution of the eigenvalues of the Dirac operator. In this work we have used the Boriçi - Creutz operator to test our method, as an example of using this algorithm in Lattice QCD.</p> Rudina Osmanaj Dafina Xhako Niko Hyka Copyright (c) 2020 International Journal of Innovative Technology and Interdisciplinary Sciences 2020-05-28 2020-05-28 3 2 443 450 10.15157/IJITIS.2020.3.2.443-450