In this paper, practical considerations for recursive Discrete Fourier Transform (DFT) implementation in numerical relays are presented. The DFT filter instabilities which would produce accumulated errors emphasized. aspects ruling error accumulation of the estimated magnitude and phase highlighted. Novel solutions directed elimination proposed intensively tested. Digital signal processing (DSP) board based test set-up is utilized experimental verification. paper results valuable protection...

In this study, we design and verify an intake system using the wake of a pocket-sized quadcopter for chemical plume tracing (CPT) problem. Solving CPT represents important technique in field engineering because it can be used to perform rescue operations at time disaster identify sources harmful substances. An appropriate air when sensing odors plays role performing CPT. Hence, flow generated by itself particles into two alcohol sensors. By experimental evaluation, verified that method has...

Some people only know the general form of tasniyah, even though there is another form, namely Deuteronomy taghlib. Therefore, this research aims to discuss in detail taghlib, especially three words as al-abawani, al-masyriqani, and al-bahrani. The novelty discussing taghlib with Thosihiko Izutsu's Semantic Approach. Based on literature reviewed, has been limited in-depth discussion deuteronomy study argues that a detailed examination Quran essential. This employed library research. Followed...

In this research, we aim to model an adaptive behavior of animal and implement it autonomous robot. The conventional bio-inspired algorithm is difficult demonstrate the ability as much because models without considering dynamic characteristics Therefore, in study, constructed animal-in-the-loop system, which a novel experimental system for identifying form that considers robot be implemented.

Calculated reactance between relay point and fault represents an accurate estimation of distance when the resistance or R/L ratios equivalent impedance at line ends are very small. When these conditions not satisfied, a large error results in locating due to back-feed effect from remote end. A new recursive algorithm for protection is developed, which accurately determines location by predicting current. The prediction needs estimated values end source be passed via communication link. Trip...

In this paper, practical considerations for recursive discrete Fourier transform (DFT) implementation in numerical relays are presented. The DFT filter instabilities which would produce magnified errors emphasized. aspects ruling error magnification of the estimated magnitude and phase highlighted. Novel solutions directed elimination proposed intensively tested. Digital signal processing (DSP) board based test set-up is utilized results corroboration. paper valuable protection engineers...

Abstract This work studies the method of sorting plastic bottles-waste. Currently, recycling treatment for a different type bottle wastes is similar although they are made material. The disadvantage current that produced an unknown plastics. To perform types waste, plastic-bottle waste needs to be sorted based on their material characteristics. We propose by using barcode scanner. A database number, which then categorized characteristics, first created. In this paper, diagram process given.

The deployment of a group robots equipped with sensors for monitoring, also known as robotic sensor network, is promising technological solution to solve time-critical societal and environmental issues. This paper considers the problem deploying network persistently effectively monitor multiple locations interest in large field represented by grids. To this end, we propose novel two-layer control framework where first layer (i.e., task allocation strategy) encapsulates targeted grids into...

<span lang="EN-US">A novel metaheuristic optimization algorithm based on cuckoo search (CSA) is presented to solve the construction site layout planning problem (CSLP). CSLP a complex with various applications, such as plant layout, and computer chip layout. Many researchers have investigated by applying many algorithms in an exact or heuristic approach. Although both methods yield promising result, technically, nature-inspired demonstrate high achievement successful percentage. In...

As an archipelago country in the equator, Indonesia has a tropical climate and often is subjected to monsoonal circulation. The geographical location affects have two seasons, which are rainy season drier season. Every its characteristic impacts against mean temperature rainfall rate. This research aims analyze Indonesia’s rate data concerning climate. areas observed limited Java, Bali, Nusa Tenggara Island from January 2019 December 2020. gathered official Badan Meteorologi Klimatologi dan...

A speaker independent isolated Arabic word recognition system has been successfully implemented and tested. End-point detection voiced/unvoiced segmentation algorithms are based on energy zero-crossing rate (ZCR) using adaptive ZCR threshold. Formants extracted ZCI histograms obtained from filtered speech signal [1]. The is about 96% for ten words.

One of the problems when designing an aircraft is flight time estimation. When we design aircraft, in general, calculating maximum takeoff weight becomes priority. The longer required by more batteries should be added. More mean payload capacity decreased. On other hand, adding will increase requirement using powerful motors. We need to take into our account, that motors calculated carefully because current consumption also increased. This problem circling same situation, without any real...

Instead of decreasing pulse duty cycle the synchronization FH random multiple access (RMA) to decrease interference between users in acquisition stage, we use a PN generator spread modulated data before going hopped carrier, transmitter each user has same other but they differ initial state shift registers generator, and this is known only desired receiver, so can auto correlation property overcome problem interference. The results show that our scheme better than packet depends on

A quadrotor is one of Unmanned Aerial Vehicle that has a capability to flight in the restricted area. Quadrotor as flying robot attracted interest from various groups such researchers, hobbyists, and military for doing particular tasks. Although single capable overcoming multiple missions, however, multi advantages communication failures. Multi its application identical with formation required leader-follower, behavioral structure, virtual multiple-input-multiple-output approaches between...

Raw signal from sensor is generally corrupted by noise and other uncertainties. To suppress the noise, a filtering mechanism required. Exponential Moving Average filter (EMA) serves as powerful yet exceptionally simple filter. However, selecting so-called Alpha parameter in EMA not straightforward task. Extremely large value lead to more small resulted sluggish convergence true value. In many cases selected arbitrarily then opted for best performance, resulting numerous trials errors. This...

The problem considered in this work is formation control for non-identical linear multi-agent systems (MASs) under a time-varying communication network. size of the scalable via scaling factor determined by leader agent. Past works on are limited to identical agents fixed In addition, variable updated leader-follower Differently, considers leaderless undirected network addition update variable. law achieve based internal model principle and consensus algorithm. A biased reference output,...

Limbah atau sampah organik rumah tangga berupa sisa makanan dapat dimanfaatkan sebagai sumber energi alternatif dalam bentuk biogas. Biogas dihasilkan dengan menguraikan bantuan bakteri di reaktor biodigester. Program pengabdian masyarakat yang dilakukan ini adalah membantu sebuah institusi pendidikan untuk memanfaatkan limbah agar menghasilkan biogas digunakan pengganti gas elpiji memasak. Dalam kegiatan ini, pemasangan biodigester dan penyuluhan serta sosialisasi bukan hanya terkait tetapi...

This study investigated the capability of a group agents to form desired shape formation by designing feedback control using linear quadratic regulator. In real application, state condition may change due some particular problems such as slow input response. order compensate for problem that affects agent-to-agent coordination, robust regulator was implemented into algorithm. this study, full-state method considered. The result showed can (square) with modification trajectory each agent....

In this paper, we present the Kalman decision feedback equalizer (Kalman-DFE) as a solution for high data rate HF waveforms. We show that basic performance Kalman-DFE is far from standard requirements of and breaks down higher constellation. As result, add two major enhancements Kalman-DFE: bi-directional iterative structures. The structure successfully prevents break at constellation enhances overall performance. then significantly (about 6dB gain 1e-5 BER 64QAM after three iterations)....

Abstract At present, the wired vibration sensor monitoring system for rotating machinery has been successfully implemented in modern industry. Regardless of its advantages such as real-time transmission and fast response, complex configuration can cause a problem tucked cables higher cost it is employed large equipment. Therefore, this current study, based on Wireless Sensor Network (WSN) developed. The new proposed study involves utilization Xbee module, Raspberry Pi, Arduino UNO, Grove...

The jamming problem is a major threat for any FH systems especially in acquisition stage. Acquisition stage very important task receiver because without the hopping can't demodulate his data. To solve of receivers during stage, two-level scheme with adaptive threshold proposed frequency-hopped spread spectrum system. advantage this its dependent on number jammed channels. performance evaluated two types jamming: partial-band noise and tone jamming. results show that adaptive-threshold...